Add support for cdn DP controller which is embedded in the rk3399 SoCs. The DP is compliant with DisplayPort Specification, Version 1.3, This IP is compatible with the rockchip type-c PHY IP. There is a uCPU in DP controller, it need a firmware to work, please put the firmware file to /lib/firmware/cdn/dptx.bin. The uCPU in charge of aux communication and link training, the host use mailbox to communicate with the ucpu. The dclk pin_pol of vop must not be invert for DP.

Signed-off-by: Chris Zhong zyw@rock-chips.com ---

drivers/gpu/drm/rockchip/Kconfig | 9 + drivers/gpu/drm/rockchip/Makefile | 1 + drivers/gpu/drm/rockchip/cdn-dp-core.c | 620 +++++++++++++++++++++++ drivers/gpu/drm/rockchip/cdn-dp-core.h | 95 ++++ drivers/gpu/drm/rockchip/cdn-dp-reg.c | 730 ++++++++++++++++++++++++++++ drivers/gpu/drm/rockchip/cdn-dp-reg.h | 404 +++++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 9 +- drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 2 + drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 2 + include/sound/cdn-dp-audio.h | 51 ++ 10 files changed, 1922 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-core.c create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-core.h create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-reg.c create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-reg.h create mode 100644 include/sound/cdn-dp-audio.h

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig index d30bdc3..20da9a8 100644 --- a/drivers/gpu/drm/rockchip/Kconfig +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -25,6 +25,15 @@ config ROCKCHIP_ANALOGIX_DP for the Analogix Core DP driver. If you want to enable DP on RK3288 based SoC, you should selet this option.

+config ROCKCHIP_CDN_DP + tristate "Rockchip cdn DP" + depends on DRM_ROCKCHIP + help + This selects support for Rockchip SoC specific extensions + for the cdn Dp driver. If you want to enable Dp on + RK3399 based SoC, you should selet this + option. + config ROCKCHIP_DW_HDMI tristate "Rockchip specific extensions for Synopsys DW HDMI" depends on DRM_ROCKCHIP diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile index 05d0713..abdecd5 100644 --- a/drivers/gpu/drm/rockchip/Makefile +++ b/drivers/gpu/drm/rockchip/Makefile @@ -7,6 +7,7 @@ rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o \ rockchipdrm-$(CONFIG_DRM_FBDEV_EMULATION) += rockchip_drm_fbdev.o

obj-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o +obj-$(CONFIG_ROCKCHIP_CDN_DP) += cdn-dp-core.o cdn-dp-reg.o obj-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o obj-$(CONFIG_ROCKCHIP_DW_MIPI_DSI) += dw-mipi-dsi.o obj-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c new file mode 100644 index 0000000..fdf99f5 --- /dev/null +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -0,0 +1,620 @@ +/* + * cdn dp controller core driver + * + * Copyright (C) 2016 Chris Zhong zyw@rock-chips.com + * Copyright (C) 2016 ROCKCHIP, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <drm/drmP.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_dp_helper.h> +#include <drm/drm_edid.h> +#include <drm/drm_of.h> + +#include <linux/component.h> +#include <linux/clk.h> +#include <linux/firmware.h> +#include <linux/mfd/syscon.h> +#include <linux/phy/phy.h> +#include <linux/phy/phy-rockchip-typec.h> +#include <linux/regmap.h> +#include <linux/reset.h> + +#include <video/of_videomode.h> +#include <video/videomode.h> + +#include <sound/cdn-dp-audio.h> + +#include "rockchip_drm_vop.h" +#include "cdn-dp-reg.h" +#include "cdn-dp-core.h" + +#define connector_to_dp(c) \ + container_of(c, struct cdn_dp_device, connector) + +#define encoder_to_dp(c) \ + container_of(c, struct cdn_dp_device, encoder) + +/* dp grf register offset */ +#define DP_VOP_SEL 0x6224 +#define DP_SEL_VOP_LIT BIT(12) + +static int cdn_dp_clk_enable(struct cdn_dp_device *dp) +{ + int ret = 0; + int clk_rate = 200000000; + + ret = clk_prepare_enable(dp->pclk); + if (ret < 0) { + dev_err(dp->dev, "cannot enable dp pclk %d\n", ret); + goto err_pclk; + } + + ret = clk_prepare_enable(dp->core_clk); + if (ret < 0) { + dev_err(dp->dev, "cannot enable core_clk %d\n", ret); + goto err_core_clk; + } + + ret = clk_set_rate(dp->core_clk, clk_rate); + if (ret < 0) { + dev_err(dp->dev, "cannot set dp core clk to %d %d\n", + clk_rate, ret); + goto err_set_rate; + } + + /* notice fw the clk freq value */ + cdn_dp_set_fw_clk(dp, clk_rate); + + return 0; + +err_set_rate: + clk_disable_unprepare(dp->core_clk); +err_core_clk: + clk_disable_unprepare(dp->pclk); +err_pclk: + return ret; +} + +static enum drm_connector_status +cdn_dp_connector_detect(struct drm_connector *connector, bool force) +{ + struct cdn_dp_device *dp = connector_to_dp(connector); + int ret; + + if (!dp->fw_loaded) + return connector_status_unknown; + + ret = cdn_dp_get_hpd_status(dp); + if (ret < 0) + return connector_status_unknown; + + dp->plugged = ret; + + return ret ? connector_status_connected : connector_status_disconnected; +} + +static void cdn_dp_connector_destroy(struct drm_connector *connector) +{ + drm_connector_unregister(connector); + drm_connector_cleanup(connector); +} + +static struct drm_connector_funcs cdn_dp_atomic_connector_funcs = { + .dpms = drm_atomic_helper_connector_dpms, + .detect = cdn_dp_connector_detect, + .destroy = cdn_dp_connector_destroy, + .fill_modes = drm_helper_probe_single_connector_modes, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static int cdn_dp_connector_get_modes(struct drm_connector *connector) +{ + struct cdn_dp_device *dp = connector_to_dp(connector); + struct edid *edid; + int ret; + + if (!dp->fw_loaded) + return 0; + + ret = cdn_dp_set_host_cap(dp); + if (ret) { + dev_err(dp->dev, "set host capabilities failed:%d\n", ret); + return ret; + } + + edid = drm_do_get_edid(connector, cdn_dp_get_edid_block, dp); + if (edid) { + dev_dbg(dp->dev, "got edid: width[%d] x height[%d]\n", + edid->width_cm, edid->height_cm); + + dp->sink_has_audio = drm_detect_monitor_audio(edid); + drm_mode_connector_update_edid_property(connector, edid); + drm_add_edid_modes(connector, edid); + /* Store the ELD */ + drm_edid_to_eld(connector, edid); + kfree(edid); + } else { + dev_dbg(dp->dev, "failed to get edid\n"); + } + + /* + * put the training process here, since the mode_valid need the + * training result to check if the resolution is support. + */ + ret = cdn_dp_training_start(dp); + if (ret) { + dev_err(dp->dev, "hw lt err:%d\n", ret); + return ret; + } + + ret = cdn_dp_get_lt_status(dp); + if (ret) { + dev_err(dp->dev, "hw lt get status err:%d\n", ret); + return ret; + } + + dev_dbg(dp->dev, "rate:%d, lanes:%d\n", + dp->link.rate, dp->link.num_lanes); + return 0; +} + +static struct drm_encoder * + cdn_dp_connector_best_encoder(struct drm_connector *connector) +{ + struct cdn_dp_device *dp = connector_to_dp(connector); + + return &dp->encoder; +} + +static int cdn_dp_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct cdn_dp_device *dp = connector_to_dp(connector); + struct drm_display_info *display_info = &dp->connector.display_info; + long requested = mode->clock * display_info->bpc * 3 / 1000; + long actual, rate; + + rate = drm_dp_bw_code_to_link_rate(dp->link.rate); + actual = rate * dp->link.num_lanes / 100; + + /* efficiency is about 0.8 */ + actual = actual * 8 / 10; + + if (requested > actual) { + dev_dbg(dp->dev, "requested=%ld, actual=%ld, clock=%d, bpc= %d\n", + requested, actual, mode->clock, display_info->bpc); + return MODE_H_ILLEGAL; + } + + return MODE_OK; +} + +static struct drm_connector_helper_funcs cdn_dp_connector_helper_funcs = { + .get_modes = cdn_dp_connector_get_modes, + .best_encoder = cdn_dp_connector_best_encoder, + .mode_valid = cdn_dp_connector_mode_valid, +}; + +static int cdn_dp_commit(struct drm_encoder *encoder) +{ + struct cdn_dp_device *dp = encoder_to_dp(encoder); + int ret; + + cdn_dp_set_video_status(dp, CONTROL_VIDEO_IDLE); + + ret = cdn_dp_config_video(dp); + if (ret) { + dev_err(dp->dev, "unable to config video\n"); + return ret; + } + + cdn_dp_set_video_status(dp, CONTROL_VIDEO_VALID); + dp->dpms_mode = DRM_MODE_DPMS_ON; + + return ret; +} + +static void cdn_dp_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted) +{ + struct cdn_dp_device *dp = encoder_to_dp(encoder); + struct drm_display_info *display_info = &dp->connector.display_info; + struct rockchip_crtc_state *state; + struct video_info *video = &dp->video_info; + int ret, val; + + switch (display_info->bpc) { + case 16: + case 12: + case 10: + video->color_depth = 10; + break; + case 6: + video->color_depth = 6; + break; + default: + video->color_depth = 8; + break; + } + + video->color_fmt = PXL_RGB; + + video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC); + video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC); + + ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder); + if (ret < 0) + return; + + state = to_rockchip_crtc_state(encoder->crtc->state); + if (ret) { + val = DP_SEL_VOP_LIT | (DP_SEL_VOP_LIT << 16); + state->output_mode = ROCKCHIP_OUT_MODE_P888; + } else { + val = DP_SEL_VOP_LIT << 16; + state->output_mode = ROCKCHIP_OUT_MODE_AAAA; + } + ret = regmap_write(dp->grf, DP_VOP_SEL, val); + if (ret != 0) + dev_err(dp->dev, "Could not write to GRF: %d\n", ret); + + memcpy(&dp->mode, adjusted, sizeof(*mode)); +} + +static void cdn_dp_encoder_enable(struct drm_encoder *encoder) +{ + struct cdn_dp_device *dp = encoder_to_dp(encoder); + + if (dp->dpms_mode == DRM_MODE_DPMS_ON) + return; + + cdn_dp_commit(encoder); +} + +static void cdn_dp_encoder_disable(struct drm_encoder *encoder) +{ + struct cdn_dp_device *dp = encoder_to_dp(encoder); + + if (dp->dpms_mode != DRM_MODE_DPMS_ON) + return; + + cdn_dp_set_video_status(dp, CONTROL_VIDEO_IDLE); + + dp->dpms_mode = DRM_MODE_DPMS_OFF; +} + +static int +cdn_dp_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state); + + s->output_mode = ROCKCHIP_OUT_MODE_AAAA; + s->output_type = DRM_MODE_CONNECTOR_DisplayPort; + + return 0; +} + +static struct drm_encoder_helper_funcs cdn_dp_encoder_helper_funcs = { + .mode_set = cdn_dp_encoder_mode_set, + .enable = cdn_dp_encoder_enable, + .disable = cdn_dp_encoder_disable, + .atomic_check = cdn_dp_encoder_atomic_check, +}; + +static struct drm_encoder_funcs cdn_dp_encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +int cdn_dp_firmware_init(struct cdn_dp_device *dp) +{ + int ret; + const u32 *iram_data, *dram_data; + const struct firmware *fw; + const struct cdn_firmware_header *hdr; + + if (dp->fw_loaded) + return 0; + + ret = request_firmware(&fw, "cdn/dptx.bin", dp->dev); + if (ret < 0) { + dev_err(dp->dev, "failed to request firmware %d\n", ret); + return ret; + } + + hdr = (struct cdn_firmware_header *)fw->data; + if (fw->size != le32_to_cpu(hdr->size_bytes)) + return -EINVAL; + + ret = cdn_dp_clk_enable(dp); + if (ret < 0) { + dev_err(dp->dev, "cannot enable dp clk %d\n", ret); + return ret; + } + + dp_clock_reset_seq(dp); + + iram_data = (const u32 *)(fw->data + hdr->header_size); + dram_data = (const u32 *)(fw->data + hdr->header_size + hdr->iram_size); + + ret = cdn_dp_load_firmware(dp, + iram_data, hdr->iram_size, + dram_data, hdr->dram_size); + + ret = cdn_dp_active(dp, true); + if (ret) { + dev_err(dp->dev, "active ucpu failed: %d\n", ret); + return ret; + } + + cdn_dp_event_config(dp); + + return 0; +} + +static int cdn_dp_init(struct cdn_dp_device *dp) +{ + struct device *dev = dp->dev; + struct device_node *np = dev->of_node; + struct platform_device *pdev = to_platform_device(dev); + struct resource *res; + + dp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); + if (IS_ERR(dp->grf)) { + dev_err(dev, "cdn-dp needs rockchip,grf property\n"); + return PTR_ERR(dp->grf); + } + + dp->irq = platform_get_irq(pdev, 0); + if (dp->irq < 0) { + dev_err(dev, "cdn-dp can not get irq\n"); + return dp->irq; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + dp->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(dp->regs)) { + dev_err(dev, "ioremap reg failed\n"); + return PTR_ERR(dp->regs); + } + + dp->core_clk = devm_clk_get(dev, "core_clk"); + if (IS_ERR(dp->core_clk)) { + dev_err(dev, "cannot get core_clk_dp\n"); + return PTR_ERR(dp->core_clk); + } + + dp->pclk = devm_clk_get(dev, "pclk"); + if (IS_ERR(dp->pclk)) { + dev_err(dev, "cannot get pclk\n"); + return PTR_ERR(dp->pclk); + } + + dp->spdif_clk = devm_clk_get(dev, "spdif"); + if (IS_ERR(dp->spdif_clk)) { + dev_err(dev, "cannot get spdif_clk\n"); + return PTR_ERR(dp->spdif_clk); + } + + dp->dpms_mode = DRM_MODE_DPMS_OFF; + + dev_set_name(dp->dev, "cdn-dp"); + + return 0; +} + +static const struct cdn_dp_audio_ops dp_audio_ops = { + .audio_startup = cdn_dp_audio_start, + .audio_shutdown = cdn_dp_audio_stop, + .audio_start = cdn_dp_audio_start, + .audio_stop = cdn_dp_audio_stop, + .audio_config = cdn_dp_audio_config_set, +}; + +static int cdn_dp_pd_event(struct notifier_block *nb, + unsigned long event, void *priv) +{ + struct cdn_dp_device *dp; + u8 map, is_dp; + int value = *(int *)priv; + + dp = container_of(nb, struct cdn_dp_device, event_nb); + if (IS_ERR_OR_NULL(dp)) { + pr_err("initialization issue"); + return -1; + } + + is_dp = GET_DP(value); + + if (!is_dp) + return 0; + + dp->flip = GET_FLIP(value); + map = GET_PIN_MAP(value); + if (map & (PIN_MAP_B | PIN_MAP_D | PIN_MAP_F)) + dp->cap_lanes = 2; + else + dp->cap_lanes = 4; + + schedule_delayed_work_on(0, &dp->event_wq, 100); + + return 0; +} + +static void cdn_dp_pd_event_wq(struct work_struct *work) +{ + struct cdn_dp_device *dp; + + dp = container_of(work, struct cdn_dp_device, event_wq.work); + if (IS_ERR_OR_NULL(dp)) { + pr_err("initialization issue"); + return; + } + + if (cdn_dp_firmware_init(dp)) + return; + + if ((cdn_dp_get_event(dp) & DPTX_HPD_EVENT) && (dp->drm_dev)) + drm_helper_hpd_irq_event(dp->drm_dev); +} + +static int cdn_dp_bind(struct device *dev, struct device *master, + void *data) +{ + struct cdn_dp_audio_pdata audio_pdata; + struct cdn_dp_device *dp = dev_get_drvdata(dev); + struct device_node *np = dev->of_node; + struct drm_encoder *encoder; + struct drm_connector *connector; + struct drm_device *drm_dev = data; + struct phy *phy = devm_of_phy_get_by_index(dev, np, 0); + int ret; + + if (IS_ERR(phy)) + return -EPROBE_DEFER; + + dp->phy = phy; + + ret = cdn_dp_init(dp); + if (ret < 0) + return ret; + + dp->drm_dev = drm_dev; + + encoder = &dp->encoder; + + encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev, + dev->of_node); + DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs); + + ret = drm_encoder_init(drm_dev, encoder, &cdn_dp_encoder_funcs, + DRM_MODE_ENCODER_TMDS, NULL); + if (ret) { + DRM_ERROR("failed to initialize encoder with drm\n"); + return ret; + } + + drm_encoder_helper_add(encoder, &cdn_dp_encoder_helper_funcs); + + connector = &dp->connector; + connector->polled = DRM_CONNECTOR_POLL_HPD; + connector->dpms = DRM_MODE_DPMS_OFF; + + ret = drm_connector_init(drm_dev, connector, + &cdn_dp_atomic_connector_funcs, + DRM_MODE_CONNECTOR_DisplayPort); + if (ret) { + DRM_ERROR("failed to initialize connector with drm\n"); + goto err_free_encoder; + } + + drm_connector_helper_add(connector, &cdn_dp_connector_helper_funcs); + + ret = drm_mode_connector_attach_encoder(connector, encoder); + if (ret) { + DRM_ERROR("failed to attach connector and encoder\n"); + goto err_free_connector; + } + + audio_pdata.dev = dev, + audio_pdata.ops = &dp_audio_ops, + audio_pdata.data = dp; + + dp->audio_pdev = platform_device_register_data( + dev, "cdn-dp-audio", PLATFORM_DEVID_NONE, + &audio_pdata, sizeof(audio_pdata)); + + if (IS_ERR(dp->audio_pdev)) + return PTR_ERR(dp->audio_pdev); + + dp->event_nb.notifier_call = cdn_dp_pd_event; + INIT_DELAYED_WORK(&dp->event_wq, cdn_dp_pd_event_wq); + tcphy_register_notifier(phy, &dp->event_nb); + + return 0; + +err_free_connector: + drm_connector_cleanup(connector); +err_free_encoder: + drm_encoder_cleanup(encoder); + return ret; +} + +static void cdn_dp_unbind(struct device *dev, struct device *master, void *data) +{ + struct cdn_dp_device *dp = dev_get_drvdata(dev); + struct drm_encoder *encoder = &dp->encoder; + + platform_device_unregister(dp->audio_pdev); + cdn_dp_encoder_disable(encoder); + encoder->funcs->destroy(encoder); + drm_connector_unregister(&dp->connector); + drm_connector_cleanup(&dp->connector); + drm_encoder_cleanup(encoder); + tcphy_unregister_notifier(dp->phy, &dp->event_nb); +} + +static const struct component_ops cdn_dp_component_ops = { + .bind = cdn_dp_bind, + .unbind = cdn_dp_unbind, +}; + +static int cdn_dp_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct cdn_dp_device *dp; + + dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL); + if (!dp) + return -ENOMEM; + dp->dev = dev; + + platform_set_drvdata(pdev, dp); + + return component_add(dev, &cdn_dp_component_ops); +} + +static int cdn_dp_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &cdn_dp_component_ops); + + return 0; +} + +static const struct of_device_id cdn_dp_dt_ids[] = { + {.compatible = "rockchip,cdn-dp",}, + {} +}; + +MODULE_DEVICE_TABLE(of, cdn_dp_dt_ids); + +static struct platform_driver cdn_dp_driver = { + .probe = cdn_dp_probe, + .remove = cdn_dp_remove, + .driver = { + .name = "cdn-dp", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(cdn_dp_dt_ids), + }, +}; + +module_platform_driver(cdn_dp_driver); + +MODULE_AUTHOR("Chris Zhong zyw@rock-chips.com"); +MODULE_DESCRIPTION("cdn DP Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.h b/drivers/gpu/drm/rockchip/cdn-dp-core.h new file mode 100644 index 0000000..99c0123 --- /dev/null +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.h @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2016 Chris Zhong zyw@rock-chips.com + * Copyright (C) 2016 ROCKCHIP, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _ROCKCHIP_EDP_CORE_H +#define _ROCKCHIP_EDP_CORE_H + +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_dp_helper.h> +#include <drm/drm_panel.h> +#include "rockchip_drm_drv.h" +#include "cdn-dp-reg.h" + +struct video_info { + bool h_sync_polarity; + bool v_sync_polarity; + bool interlaced; + int color_depth; + enum VIC_PXL_ENCODING_FORMAT color_fmt; +}; + +struct cdn_firmware_header { + u32 size_bytes; /* size of the entire header+image(s) in bytes */ + u32 header_size; /* size of just the header in bytes */ + u32 iram_size; /* size of iram */ + u32 dram_size; /* size of dram */ +}; + +struct cdn_dp_device { + struct device *dev; + struct drm_device *drm_dev; + struct drm_connector connector; + struct drm_encoder encoder; + struct drm_display_mode mode; + struct delayed_work hotplug_work; + struct platform_device *audio_pdev; + bool plugged; + + const struct firmware *fw; /* cdn dp firmware */ + unsigned int fw_version; /* cdn fw version */ + bool fw_loaded; + void __iomem *regs; + void __iomem *phy_regs; + struct regmap *grf; + unsigned int irq; + struct clk *core_clk; + struct clk *pclk; + struct clk *spdif_clk; + struct video_info video_info; + struct phy *phy; + struct notifier_block event_nb; + struct delayed_work event_wq; + + int cap_lanes; + bool flip; + + int dpms_mode; + struct drm_dp_link link; + bool sink_has_audio; +}; + +void dp_clock_reset_seq(struct cdn_dp_device *dp); + +void cdn_dp_set_fw_clk(struct cdn_dp_device *dp, int clk); +int cdn_dp_load_firmware(struct cdn_dp_device *dp, const u32 *i_mem, + u32 i_size, const u32 *d_mem, u32 d_size); +int cdn_dp_active(struct cdn_dp_device *dp, u8 enable); +int cdn_dp_set_host_cap(struct cdn_dp_device *dp); +int cdn_dp_event_config(struct cdn_dp_device *dp); +int cdn_dp_get_event(struct cdn_dp_device *dp); +int cdn_dp_get_hpd_status(struct cdn_dp_device *dp); +int cdn_dp_dpcd_write(struct cdn_dp_device *dp, u32 addr, u8 value); +int cdn_dp_dpcd_read(struct cdn_dp_device *dp, u32 addr); +int cdn_dp_get_edid_block(void *dp, u8 *edid, + unsigned int block, size_t length); +int cdn_dp_training_start(struct cdn_dp_device *dp); +int cdn_dp_get_lt_status(struct cdn_dp_device *dp); +int cdn_dp_set_video_status(struct cdn_dp_device *dp, int active); +int cdn_dp_config_video(struct cdn_dp_device *dp); +int cdn_dp_audio_start(void *dp_dev, struct audio_info *audio); +int cdn_dp_audio_stop(void *dp_dev, struct audio_info *audio); +int cdn_dp_audio_config_set(void *dp_dev, struct audio_info *audio); + +#endif /* _ROCKCHIP_EDP_CORE_H */ diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c new file mode 100644 index 0000000..d6c9bcb --- /dev/null +++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c @@ -0,0 +1,730 @@ +/* + * cdn dp controller register driver + * + * Copyright (C) 2016 Chris Zhong zyw@rock-chips.com + * Copyright (C) 2016 ROCKCHIP, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/reset.h> + +#include <sound/cdn-dp-audio.h> + +#include "cdn-dp-core.h" +#include "cdn-dp-reg.h" + +#define FW_ALIVE_TIMEOUT_US 1000000 +#define MAILBOX_TIMEOUT_US 5000000 + +/* the max size of read buff is 134 */ +static u8 rx_buff[134]; + +void cdn_dp_set_fw_clk(struct cdn_dp_device *dp, int clk) +{ + writel(clk / 1000000, dp->regs + SW_CLK_H); +} + +void dp_clock_reset_seq(struct cdn_dp_device *dp) +{ + writel(0xfff, dp->regs + SOURCE_DPTX_CAR); + writel(0x7, dp->regs + SOURCE_PHY_CAR); + writel(0xf, dp->regs + SOURCE_PKT_CAR); + writel(0xff, dp->regs + SOURCE_AIF_CAR); + writel(0xf, dp->regs + SOURCE_CIPHER_CAR); + writel(0x3, dp->regs + SOURCE_CRYPTO_CAR); + writel(0, dp->regs + APB_INT_MASK); +} + +static u8 cdn_dp_mailbox_read(struct cdn_dp_device *dp) +{ + int val, ret; + + if (!dp->fw_loaded) + return 0; + + ret = readx_poll_timeout(readl, dp->regs + MAILBOX_EMPTY_ADDR, + val, !val, 1000, MAILBOX_TIMEOUT_US); + if (ret < 0) { + dev_err(dp->dev, "failed to wait mailbox response\n"); + return 0; + } + + return readl(dp->regs + MAILBOX0_RD_DATA) & 0xff; +} + +static void cdp_dp_mailbox_write(struct cdn_dp_device *dp, u8 val) +{ + int ret, full; + + if (!dp->fw_loaded) + return; + + ret = readx_poll_timeout(readl, dp->regs + MAILBOX_FULL_ADDR, + full, !full, 1000, MAILBOX_TIMEOUT_US); + if (ret < 0) { + dev_err(dp->dev, "mailbox is full\n"); + return; + } + + writel(val, dp->regs + MAILBOX0_WR_DATA); +} + +/* return the size of message */ +int cdn_dp_mailbox_response(struct cdn_dp_device *dp, u8 module_id, + u8 opcode, u8 **message) +{ + int size, i = 0; + + memset(rx_buff, 0, 4); + + while (i < sizeof(rx_buff)) { + if (i < sizeof(rx_buff)) + rx_buff[i++] = cdn_dp_mailbox_read(dp); + + size = ((rx_buff[2] << 8) | rx_buff[3]) + 4; + if (i >= size) + break; + } + + if ((opcode != rx_buff[0]) || (module_id != rx_buff[1])) + return -EINVAL; + + size = (rx_buff[2] << 8) | rx_buff[3]; + + *message = &rx_buff[4]; + + return size; +} + +int cdn_dp_mailbox_send(struct cdn_dp_device *dp, u8 module_id, u8 opcode, + u16 size, u8 *message) +{ + cdp_dp_mailbox_write(dp, opcode); + cdp_dp_mailbox_write(dp, module_id); + cdp_dp_mailbox_write(dp, size >> 8); + cdp_dp_mailbox_write(dp, size & 0xff); + + while (size--) + cdp_dp_mailbox_write(dp, *message++); + + return 0; +} + +int cdn_dp_load_firmware(struct cdn_dp_device *dp, const u32 *i_mem, + u32 i_size, const u32 *d_mem, u32 d_size) +{ + int i, reg, ret; + + /* reset ucpu before load firmware*/ + writel(APB_IRAM_PATH | APB_DRAM_PATH | APB_XT_RESET, + dp->regs + APB_CTRL); + + for (i = 0; i < i_size; i += 4) + writel(*i_mem++, dp->regs + ADDR_IMEM + i); + + for (i = 0; i < d_size; i += 4) + writel(*d_mem++, dp->regs + ADDR_DMEM + i); + + /* un-reset ucpu */ + writel(0, dp->regs + APB_CTRL); + + /* check the keep alive register to make sure fw working */ + ret = readx_poll_timeout(readl, dp->regs + KEEP_ALIVE, + reg, reg, 2000, FW_ALIVE_TIMEOUT_US); + if (ret < 0) { + dev_err(dp->dev, "failed to loaded the FW reg = %x\n", reg); + return -EINVAL; + } + + reg = readl(dp->regs + VER_L) & 0xff; + dp->fw_version = reg; + reg = readl(dp->regs + VER_H) & 0xff; + dp->fw_version |= reg << 8; + reg = readl(dp->regs + VER_LIB_L_ADDR) & 0xff; + dp->fw_version |= reg << 16; + reg = readl(dp->regs + VER_LIB_H_ADDR) & 0xff; + dp->fw_version |= reg << 24; + + dp->fw_loaded = 1; + + return 0; +} + +int cdn_dp_reg_write(struct cdn_dp_device *dp, u16 addr, u32 val) +{ + u8 msg[6]; + + msg[0] = (addr >> 8) & 0xff; + msg[1] = addr & 0xff; + msg[2] = (val >> 24) & 0xff; + msg[3] = (val >> 16) & 0xff; + msg[4] = (val >> 8) & 0xff; + msg[5] = val & 0xff; + return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_WRITE_REGISTER, + ARRAY_SIZE(msg), msg); +} + +int cdn_dp_reg_read(struct cdn_dp_device *dp, u16 addr) +{ + u8 msg[2], *reg = NULL; + u16 size; + + msg[0] = (addr >> 8) & 0xff; + msg[1] = addr & 0xff; + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_READ_REGISTER, + ARRAY_SIZE(msg), msg); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_READ_REGISTER, &reg); + if (size != 6) + return -EINVAL; + + if ((msg[0] == reg[0]) && (msg[1] == reg[1])) + return (reg[2] << 24) | (reg[3] << 16) | (reg[4] << 8) | reg[5]; + + return -EINVAL; +} + +int cdn_dp_reg_write_bit(struct cdn_dp_device *dp, u16 addr, u8 start_bit, + u8 bits_no, u32 val) +{ + u8 field[8]; + + field[0] = (addr >> 8) & 0xff; + field[1] = addr & 0xff; + field[2] = start_bit; + field[3] = bits_no; + field[4] = (val >> 24) & 0xff; + field[5] = (val >> 16) & 0xff; + field[6] = (val >> 8) & 0xff; + field[7] = val & 0xff; + + return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_WRITE_FIELD, + sizeof(field), field); +} + +int cdn_dp_dpcd_write(struct cdn_dp_device *dp, u32 addr, u8 value) +{ + u8 msg[6], *reg = NULL; + u16 size; + + msg[0] = 0; + msg[1] = 1; + msg[2] = (addr >> 16) & 0xff; + msg[3] = (addr >> 8) & 0xff; + msg[4] = addr & 0xff; + msg[5] = value; + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_WRITE_DPCD, + ARRAY_SIZE(msg), msg); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_WRITE_DPCD, &reg); + if (size != 5) + return -EINVAL; + + if ((msg[2] == reg[2]) && (msg[3] == reg[3]) && (msg[4] == reg[4])) + return 0; + + return -EINVAL; +} + +int cdn_dp_dpcd_read(struct cdn_dp_device *dp, u32 addr) +{ + u8 msg[5], *reg = NULL; + u16 size; + + msg[0] = 0; + msg[1] = 1; + msg[2] = (addr >> 16) & 0xff; + msg[3] = (addr >> 8) & 0xff; + msg[4] = addr & 0xff; + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_READ_DPCD, + ARRAY_SIZE(msg), msg); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_READ_DPCD, &reg); + if (size != 6) + return -EINVAL; + + if ((msg[2] == reg[2]) && (msg[3] == reg[3]) && (msg[4] == reg[4])) + return reg[5]; + + return -EINVAL; +} + +int cdn_dp_active(struct cdn_dp_device *dp, u8 enable) +{ + u8 active = enable ? 1 : 0; + u8 *resp = NULL; + int size; + + /* set firmware status, 1: avtive; 0: standby */ + cdn_dp_mailbox_send(dp, MB_MODULE_ID_GENERAL, GENERAL_MAIN_CONTROL, + 1, &active); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_GENERAL, + GENERAL_MAIN_CONTROL, &resp); + if (size != 1) + return -EINVAL; + + return *resp ? 0 : -EINVAL; +} + +int cdn_dp_set_host_cap(struct cdn_dp_device *dp) +{ + u8 msg[8]; + + msg[0] = DP_LINK_BW_5_4; + msg[1] = dp->cap_lanes; + msg[2] = VOLTAGE_LEVEL_2; + msg[3] = PRE_EMPHASIS_LEVEL_3; + msg[4] = PRBS7 | D10_2 | TRAINING_PTN1 | TRAINING_PTN2; + msg[5] = FAST_LT_NOT_SUPPORT; + msg[6] = LANE_MAPPING_NORMAL; + msg[7] = ENHANCED; + + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, + DPTX_SET_HOST_CAPABILITIES, + ARRAY_SIZE(msg), msg); + + cdn_dp_reg_write(dp, DP_AUX_SWAP_INVERSION_CONTROL, AUX_HOST_INVERT); + + return 0; +} + +int cdn_dp_event_config(struct cdn_dp_device *dp) +{ + u8 msg[5]; + + msg[0] = DPTX_EVENT_ENABLE_HPD | DPTX_EVENT_ENABLE_TRAINING; + + return cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_ENABLE_EVENT, + ARRAY_SIZE(msg), msg); +} + +int cdn_dp_get_event(struct cdn_dp_device *dp) +{ + return readl(dp->regs + SW_EVENTS0); +} + +int cdn_dp_get_hpd_status(struct cdn_dp_device *dp) +{ + u8 *status = NULL; + int size; + + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_HPD_STATE, + 0, NULL); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_HPD_STATE, &status); + if (size != 1) + return -EINVAL; + + return *status; +} + +int cdn_dp_get_edid_block(void *data, u8 *edid, + unsigned int block, size_t length) +{ + struct cdn_dp_device *dp = data; + int size; + u8 msg[2], *reg = NULL; + + if (length != EDID_BLOCK_SIZE) + return -EINVAL; + + msg[0] = block / 2; + msg[1] = block % 2; + + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_GET_EDID, + 2, msg); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_GET_EDID, &reg); + + if (size != EDID_DATA + EDID_BLOCK_SIZE) { + dev_err(dp->dev, "read edid failed\n"); + return -EINVAL; + } + + if ((reg[EDID_LENGTH_BYTE] != EDID_BLOCK_SIZE) || + (reg[EDID_SEGMENT_BUMBER] != block / 2)) { + dev_err(dp->dev, "edid block size err\n"); + return -EINVAL; + } + + memcpy(edid, &reg[EDID_DATA], EDID_BLOCK_SIZE); + + return 0; +} + +int cdn_dp_training_start(struct cdn_dp_device *dp) +{ + int size; + u8 msg, *event = NULL; + unsigned long timeout; + + msg = LINK_TRAINING_RUN; + + /* start training */ + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_TRAINING_CONTROL, + 1, &msg); + + /* the whole training should finish in 500ms */ + timeout = jiffies + msecs_to_jiffies(500); + while (1) { + msleep(20); + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_READ_EVENT, + 0, NULL); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_READ_EVENT, &event); + if (size != 2) + return -EINVAL; + + if (event[1] & EQ_PHASE_FINISHED) + break; + + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + } + + return 0; +} + +int cdn_dp_get_lt_status(struct cdn_dp_device *dp) +{ + u8 *status = NULL; + int size; + + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_READ_LINK_STAT, + 0, NULL); + + size = cdn_dp_mailbox_response(dp, MB_MODULE_ID_DP_TX, + DPTX_READ_LINK_STAT, &status); + + if (size != 10) + return -EINVAL; + + dp->link.rate = status[0]; + dp->link.num_lanes = status[1]; + + return 0; +} + +int cdn_dp_set_video_status(struct cdn_dp_device *dp, int active) +{ + u8 msg; + + msg = !!active; + + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_SET_VIDEO, + 1, &msg); + + return 0; +} + +int cdn_dp_set_audio_status(struct cdn_dp_device *dp, int active) +{ + u8 msg; + + msg = !!active; + + cdn_dp_mailbox_send(dp, MB_MODULE_ID_DP_TX, DPTX_SET_AUDIO, + 1, &msg); + + return 0; +} + +static int cdn_dp_get_msa_misc(struct video_info *video, + struct drm_display_mode *mode) +{ + u8 val0, val1; + u32 msa_misc; + + switch (video->color_fmt) { + case PXL_RGB: + case Y_ONLY: + val0 = 0; + break; + case YCBCR_4_4_4: + val0 = 6; + break; + case YCBCR_4_2_2: + val0 = 5; + break; + case YCBCR_4_2_0: + val0 = 5; + break; + }; + + switch (video->color_depth) { + case 6: + val1 = 0; + break; + case 8: + val1 = 1; + break; + case 10: + val1 = 2; + break; + case 12: + val1 = 3; + break; + case 16: + val1 = 4; + break; + }; + + msa_misc = 2 * val0 + 32 * val1 + + ((video->color_fmt == Y_ONLY) ? (1 << 14) : 0); + + return msa_misc; +} + +int cdn_dp_config_video(struct cdn_dp_device *dp) +{ + struct video_info *video = &dp->video_info; + struct drm_display_mode *mode = &dp->mode; + u32 val, link_rate; + u8 bit_per_pix; + + bit_per_pix = (video->color_fmt == YCBCR_4_2_2) ? + (video->color_depth * 2) : (video->color_depth * 3); + + val = VIF_BYPASS_INTERLACE; + + cdn_dp_reg_write(dp, BND_HSYNC2VSYNC, val); + + cdn_dp_reg_write(dp, HSYNC2VSYNC_POL_CTRL, 0); + + link_rate = drm_dp_bw_code_to_link_rate(dp->link.rate) / 1000; + + val = TU_SIZE * mode->clock * bit_per_pix; + val /= dp->link.num_lanes * link_rate * 8 * 1000; + /* FIXME: need add 1 to symbols 4K display */ + if (mode->clock > 500000) + val += 1; + + val += TU_SIZE << 8; + + cdn_dp_reg_write(dp, DP_FRAMER_TU, val); + + switch (video->color_depth) { + case 6: + val = BCS_6; + break; + case 8: + val = BCS_8; + break; + case 10: + val = BCS_10; + break; + case 12: + val = BCS_12; + break; + case 16: + val = BCS_16; + break; + }; + + val += video->color_fmt << 8; + cdn_dp_reg_write(dp, DP_FRAMER_PXL_REPR, val); + + val = video->h_sync_polarity ? DP_FRAMER_SP_HSP : 0; + val |= video->v_sync_polarity ? DP_FRAMER_SP_VSP : 0; + cdn_dp_reg_write(dp, DP_FRAMER_SP, val); + + val = (mode->hsync_start - mode->hdisplay) << 16; + val |= mode->htotal - mode->hsync_end; + cdn_dp_reg_write(dp, DP_FRONT_BACK_PORCH, val); + + val = mode->hdisplay * bit_per_pix / 8; + cdn_dp_reg_write(dp, DP_BYTE_COUNT, val); + + val = mode->htotal | ((mode->htotal - mode->hsync_start) << 16); + cdn_dp_reg_write(dp, MSA_HORIZONTAL_0, val); + + val = mode->hsync_end - mode->hsync_start; + val |= (mode->hdisplay << 16) | (video->h_sync_polarity << 15); + cdn_dp_reg_write(dp, MSA_HORIZONTAL_1, val); + + val = mode->vtotal; + val |= ((mode->vtotal - mode->vsync_start) << 16); + + cdn_dp_reg_write(dp, MSA_VERTICAL_0, val); + + val = mode->vsync_end - mode->vsync_start; + val |= mode->vdisplay << 16; + val |= (video->v_sync_polarity << 15); + cdn_dp_reg_write(dp, MSA_VERTICAL_1, val); + + val = cdn_dp_get_msa_misc(video, mode); + cdn_dp_reg_write(dp, MSA_MISC, val); + + cdn_dp_reg_write(dp, STREAM_CONFIG, 1); + + val = mode->hsync_end - mode->hsync_start; + val |= (mode->hdisplay << 16); + cdn_dp_reg_write(dp, DP_HORIZONTAL, val); + + val = mode->vtotal; + val -= (mode->vtotal - mode->vdisplay); + val |= (mode->vtotal - mode->vsync_start) << 16; + + cdn_dp_reg_write(dp, DP_VERTICAL_0, val); + + val = mode->vtotal; + cdn_dp_reg_write(dp, DP_VERTICAL_1, val); + + val = 0; + cdn_dp_reg_write_bit(dp, DP_VB_ID, 2, 1, val); + + return 0; +} + +int cdn_dp_audio_start(void *dp_dev, struct audio_info *audio) +{ + struct cdn_dp_device *dp = (struct cdn_dp_device *)dp_dev; + + if (audio->type == TYPE_SPDIF) { + clk_prepare_enable(dp->spdif_clk); + clk_set_rate(dp->spdif_clk, 400000000); + } + + return cdn_dp_reg_write(dp, AUDIO_PACK_CONTROL, AUDIO_PACK_EN(1)); +} + +int cdn_dp_audio_stop(void *dp_dev, struct audio_info *audio) +{ + struct cdn_dp_device *dp = (struct cdn_dp_device *)dp_dev; + + cdn_dp_reg_write(dp, AUDIO_PACK_CONTROL, AUDIO_PACK_EN(0)); + + if (audio->type == TYPE_SPDIF) + clk_disable_unprepare(dp->spdif_clk); + + return 0; +} + +int cdn_dp_audio_config_set(void *dp_dev, struct audio_info *audio) +{ + struct cdn_dp_device *dp = (struct cdn_dp_device *)dp_dev; + int lanes_param, i2s_port_en_val, val, i; + + if ((audio->channels == 2) && (dp->link.num_lanes == 1)) + lanes_param = 1; + else if (audio->channels == 2) + lanes_param = 3; + else + lanes_param = 0; + + if (audio->channels == 2) + i2s_port_en_val = 1; + else if (audio->channels == 4) + i2s_port_en_val = 3; + else + i2s_port_en_val = 0xf; + + cdn_dp_reg_write(dp, CM_LANE_CTRL, 0x8000); + + cdn_dp_reg_write(dp, CM_CTRL, 0); + + if (audio->type == TYPE_I2S) { + writel(0x0, dp->regs + SPDIF_CTRL_ADDR); + + writel(SYNC_WR_TO_CH_ZERO, dp->regs + FIFO_CNTL); + + val = audio->channels - 1; + val |= (audio->channels / 2 - 1) << 5; + val |= BIT(8); + val |= lanes_param << 11; + writel(val, dp->regs + SMPL2PKT_CNFG); + + if (audio->word_length == 16) + val = 0; + else if (audio->word_length == 24) + val = 1 << 9; + else + val = 2 << 9; + + val |= (audio->channels - 1) << 2; + val |= i2s_port_en_val << 17; + val |= 2 << 11; + writel(val, dp->regs + AUDIO_SRC_CNFG); + + for (i = 0; i < (audio->channels + 1) / 2; i++) { + if (audio->word_length == 16) + val = (0x08 << 8) | (0x08 << 20); + else if (audio->word_length == 24) + val = (0x0b << 8) | (0x0b << 20); + + val |= ((2 * i) << 4) | ((2 * i + 1) << 16); + writel(val, dp->regs + STTS_BIT_CH(i)); + } + + switch (audio->freq) { + case 32000: + val = SAMPLING_FREQ(3) | + ORIGINAL_SAMP_FREQ(0xc); + break; + case 44100: + val = SAMPLING_FREQ(0) | + ORIGINAL_SAMP_FREQ(0xf); + break; + case 48000: + val = SAMPLING_FREQ(2) | + ORIGINAL_SAMP_FREQ(0xd); + break; + case 88200: + val = SAMPLING_FREQ(8) | + ORIGINAL_SAMP_FREQ(0x7); + break; + case 96000: + val = SAMPLING_FREQ(0xa) | + ORIGINAL_SAMP_FREQ(5); + break; + case 176400: + val = SAMPLING_FREQ(0xc) | + ORIGINAL_SAMP_FREQ(3); + break; + case 192000: + val = SAMPLING_FREQ(0xe) | + ORIGINAL_SAMP_FREQ(1); + break; + } + val |= 4; + writel(val, dp->regs + COM_CH_STTS_BITS); + + writel(2, dp->regs + SMPL2PKT_CNTL); + writel(2, dp->regs + AUDIO_SRC_CNTL); + cdn_dp_reg_write_bit(dp, DP_VB_ID, 4, 1, 0); + } else { + val = 0x1F0707; + writel(val, dp->regs + SPDIF_CTRL_ADDR); + + writel(SYNC_WR_TO_CH_ZERO, dp->regs + FIFO_CNTL); + + val = 0x101 | (3 << 11); + writel(val, dp->regs + SMPL2PKT_CNFG); + writel(2, dp->regs + SMPL2PKT_CNTL); + + val = 0x3F0707; + writel(val, dp->regs + SPDIF_CTRL_ADDR); + } + + return 0; +} diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.h b/drivers/gpu/drm/rockchip/cdn-dp-reg.h new file mode 100644 index 0000000..74fc7f9 --- /dev/null +++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.h @@ -0,0 +1,404 @@ +/* + * Copyright (C) 2016 Chris Zhong zyw@rock-chips.com + * Copyright (C) 2016 ROCKCHIP, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CDN_DP_REG_H +#define _CDN_DP_REG_H + +#include <linux/bitops.h> + +#define ADDR_IMEM 0x10000 +#define ADDR_DMEM 0x20000 + +/* APB CFG addr */ +#define APB_CTRL 0 +#define XT_INT_CTRL 0x04 +#define MAILBOX_FULL_ADDR 0x08 +#define MAILBOX_EMPTY_ADDR 0x0c +#define MAILBOX0_WR_DATA 0x10 +#define MAILBOX0_RD_DATA 0x14 +#define KEEP_ALIVE 0x18 +#define VER_L 0x1c +#define VER_H 0x20 +#define VER_LIB_L_ADDR 0x24 +#define VER_LIB_H_ADDR 0x28 +#define SW_DEBUG_L 0x2c +#define SW_DEBUG_H 0x30 +#define MAILBOX_INT_MASK 0x34 +#define MAILBOX_INT_STATUS 0x38 +#define SW_CLK_L 0x3c +#define SW_CLK_H 0x40 +#define SW_EVENTS0 0x44 +#define SW_EVENTS1 0x48 +#define SW_EVENTS2 0x4c +#define SW_EVENTS3 0x50 +#define XT_OCD_CTRL 0x60 +#define APB_INT_MASK 0x6c +#define APB_STATUS_MASK 0x70 + +/* audio decoder addr */ +#define AUDIO_SRC_CNTL 0x30000 +#define AUDIO_SRC_CNFG 0x30004 +#define COM_CH_STTS_BITS 0x30008 +#define STTS_BIT_CH(x) (0x3000c + (x << 2)) +#define SPDIF_CTRL_ADDR 0x3004c +#define SPDIF_CH1_CS_3100_ADDR 0x30050 +#define SPDIF_CH1_CS_6332_ADDR 0x30054 +#define SPDIF_CH1_CS_9564_ADDR 0x30058 +#define SPDIF_CH1_CS_12796_ADDR 0x3005c +#define SPDIF_CH1_CS_159128_ADDR 0x30060 +#define SPDIF_CH1_CS_191160_ADDR 0x30064 +#define SPDIF_CH2_CS_3100_ADDR 0x30068 +#define SPDIF_CH2_CS_6332_ADDR 0x3006c +#define SPDIF_CH2_CS_9564_ADDR 0x30070 +#define SPDIF_CH2_CS_12796_ADDR 0x30074 +#define SPDIF_CH2_CS_159128_ADDR 0x30078 +#define SPDIF_CH2_CS_191160_ADDR 0x3007c +#define SMPL2PKT_CNTL 0x30080 +#define SMPL2PKT_CNFG 0x30084 +#define FIFO_CNTL 0x30088 +#define FIFO_STTS 0x3008c + +/* source pif addr */ +#define SOURCE_PIF_WR_ADDR 0x30800 +#define SOURCE_PIF_WR_REQ 0x30804 +#define SOURCE_PIF_RD_ADDR 0x30808 +#define SOURCE_PIF_RD_REQ 0x3080c +#define SOURCE_PIF_DATA_WR 0x30810 +#define SOURCE_PIF_DATA_RD 0x30814 +#define SOURCE_PIF_FIFO1_FLUSH 0x30818 +#define SOURCE_PIF_FIFO2_FLUSH 0x3081c +#define SOURCE_PIF_STATUS 0x30820 +#define SOURCE_PIF_INTERRUPT_SOURCE 0x30824 +#define SOURCE_PIF_INTERRUPT_MASK 0x30828 +#define SOURCE_PIF_PKT_ALLOC_REG 0x3082c +#define SOURCE_PIF_PKT_ALLOC_WR_EN 0x30830 +#define SOURCE_PIF_SW_RESET 0x30834 + +/* bellow registers need access by mailbox */ +/* source car addr */ +#define SOURCE_HDTX_CAR 0x0900 +#define SOURCE_DPTX_CAR 0x0904 +#define SOURCE_PHY_CAR 0x0908 +#define SOURCE_CEC_CAR 0x090c +#define SOURCE_CBUS_CAR 0x0910 +#define SOURCE_PKT_CAR 0x0918 +#define SOURCE_AIF_CAR 0x091c +#define SOURCE_CIPHER_CAR 0x0920 +#define SOURCE_CRYPTO_CAR 0x0924 + +/* clock meters addr */ +#define CM_CTRL 0x0a00 +#define CM_I2S_CTRL 0x0a04 +#define CM_SPDIF_CTRL 0x0a08 +#define CM_VID_CTRL 0x0a0c +#define CM_LANE_CTRL 0x0a10 +#define I2S_NM_STABLE 0x0a14 +#define I2S_NCTS_STABLE 0x0a18 +#define SPDIF_NM_STABLE 0x0a1c +#define SPDIF_NCTS_STABLE 0x0a20 +#define NMVID_MEAS_STABLE 0x0a24 +#define I2S_MEAS 0x0a40 +#define SPDIF_MEAS 0x0a80 +#define NMVID_MEAS 0x0ac0 + +/* source vif addr */ +#define BND_HSYNC2VSYNC 0x0b00 +#define HSYNC2VSYNC_F1_L1 0x0b04 +#define HSYNC2VSYNC_F2_L1 0x0b08 +#define HSYNC2VSYNC_STATUS 0x0b0c +#define HSYNC2VSYNC_POL_CTRL 0x0b10 + +/* dptx phy addr */ +#define DP_TX_PHY_CONFIG_REG 0x2000 +#define DP_TX_PHY_STATUS_REG 0x2004 +#define DP_TX_PHY_SW_RESET 0x2008 +#define DP_TX_PHY_SCRAMBLER_SEED 0x200c +#define DP_TX_PHY_TRAINING_01_04 0x2010 +#define DP_TX_PHY_TRAINING_05_08 0x2014 +#define DP_TX_PHY_TRAINING_09_10 0x2018 +#define TEST_COR 0x23fc + +/* dptx hpd addr */ +#define HPD_IRQ_DET_MIN_TIMER 0x2100 +#define HPD_IRQ_DET_MAX_TIMER 0x2104 +#define HPD_UNPLGED_DET_MIN_TIMER 0x2108 +#define HPD_STABLE_TIMER 0x210c +#define HPD_FILTER_TIMER 0x2110 +#define HPD_EVENT_MASK 0x211c +#define HPD_EVENT_DET 0x2120 + +/* dpyx framer addr */ +#define DP_FRAMER_GLOBAL_CONFIG 0x2200 +#define DP_SW_RESET 0x2204 +#define DP_FRAMER_TU 0x2208 +#define DP_FRAMER_PXL_REPR 0x220c +#define DP_FRAMER_SP 0x2210 +#define AUDIO_PACK_CONTROL 0x2214 +#define DP_VC_TABLE(x) (0x2218 + (x << 2)) +#define DP_VB_ID 0x2258 +#define DP_MTPH_LVP_CONTROL 0x225c +#define DP_MTPH_SYMBOL_VALUES 0x2260 +#define DP_MTPH_ECF_CONTROL 0x2264 +#define DP_MTPH_ACT_CONTROL 0x2268 +#define DP_MTPH_STATUS 0x226c +#define DP_INTERRUPT_SOURCE 0x2270 +#define DP_INTERRUPT_MASK 0x2274 +#define DP_FRONT_BACK_PORCH 0x2278 +#define DP_BYTE_COUNT 0x227c + +/* dptx stream addr */ +#define MSA_HORIZONTAL_0 0x2280 +#define MSA_HORIZONTAL_1 0x2284 +#define MSA_VERTICAL_0 0x2288 +#define MSA_VERTICAL_1 0x228c +#define MSA_MISC 0x2290 +#define STREAM_CONFIG 0x2294 +#define AUDIO_PACK_STATUS 0x2298 +#define VIF_STATUS 0x229c +#define PCK_STUFF_STATUS_0 0x22a0 +#define PCK_STUFF_STATUS_1 0x22a4 +#define INFO_PACK_STATUS 0x22a8 +#define RATE_GOVERNOR_STATUS 0x22ac +#define DP_HORIZONTAL 0x22b0 +#define DP_VERTICAL_0 0x22b4 +#define DP_VERTICAL_1 0x22b8 +#define DP_BLOCK_SDP 0x22bc + +/* dptx glbl addr */ +#define DPTX_LANE_EN 0x2300 +#define DPTX_ENHNCD 0x2304 +#define DPTX_INT_MASK 0x2308 +#define DPTX_INT_STATUS 0x230c + +/* dp aux addr */ +#define DP_AUX_HOST_CONTROL 0x2800 +#define DP_AUX_INTERRUPT_SOURCE 0x2804 +#define DP_AUX_INTERRUPT_MASK 0x2808 +#define DP_AUX_SWAP_INVERSION_CONTROL 0x280c +#define DP_AUX_SEND_NACK_TRANSACTION 0x2810 +#define DP_AUX_CLEAR_RX 0x2814 +#define DP_AUX_CLEAR_TX 0x2818 +#define DP_AUX_TIMER_STOP 0x281c +#define DP_AUX_TIMER_CLEAR 0x2820 +#define DP_AUX_RESET_SW 0x2824 +#define DP_AUX_DIVIDE_2M 0x2828 +#define DP_AUX_TX_PREACHARGE_LENGTH 0x282c +#define DP_AUX_FREQUENCY_1M_MAX 0x2830 +#define DP_AUX_FREQUENCY_1M_MIN 0x2834 +#define DP_AUX_RX_PRE_MIN 0x2838 +#define DP_AUX_RX_PRE_MAX 0x283c +#define DP_AUX_TIMER_PRESET 0x2840 +#define DP_AUX_NACK_FORMAT 0x2844 +#define DP_AUX_TX_DATA 0x2848 +#define DP_AUX_RX_DATA 0x284c +#define DP_AUX_TX_STATUS 0x2850 +#define DP_AUX_RX_STATUS 0x2854 +#define DP_AUX_RX_CYCLE_COUNTER 0x2858 +#define DP_AUX_MAIN_STATES 0x285c +#define DP_AUX_MAIN_TIMER 0x2860 +#define DP_AUX_AFE_OUT 0x2864 + +/* crypto addr */ +#define CRYPTO_HDCP_REVISION 0x5800 +#define HDCP_CRYPTO_CONFIG 0x5804 +#define CRYPTO_INTERRUPT_SOURCE 0x5808 +#define CRYPTO_INTERRUPT_MASK 0x580c +#define CRYPTO22_CONFIG 0x5818 +#define CRYPTO22_STATUS 0x581c +#define SHA_256_DATA_IN 0x583c +#define SHA_256_DATA_OUT_(x) (0x5850 + (x << 2)) +#define AES_32_KEY_(x) (0x5870 + (x << 2)) +#define AES_32_DATA_IN 0x5880 +#define AES_32_DATA_OUT_(x) (0x5884 + (x << 2)) +#define CRYPTO14_CONFIG 0x58a0 +#define CRYPTO14_STATUS 0x58a4 +#define CRYPTO14_PRNM_OUT 0x58a8 +#define CRYPTO14_KM_0 0x58ac +#define CRYPTO14_KM_1 0x58b0 +#define CRYPTO14_AN_0 0x58b4 +#define CRYPTO14_AN_1 0x58b8 +#define CRYPTO14_YOUR_KSV_0 0x58bc +#define CRYPTO14_YOUR_KSV_1 0x58c0 +#define CRYPTO14_MI_0 0x58c4 +#define CRYPTO14_MI_1 0x58c8 +#define CRYPTO14_TI_0 0x58cc +#define CRYPTO14_KI_0 0x58d0 +#define CRYPTO14_KI_1 0x58d4 +#define CRYPTO14_BLOCKS_NUM 0x58d8 +#define CRYPTO14_KEY_MEM_DATA_0 0x58dc +#define CRYPTO14_KEY_MEM_DATA_1 0x58e0 +#define CRYPTO14_SHA1_MSG_DATA 0x58e4 +#define CRYPTO14_SHA1_V_VALUE_(x) (0x58e8 + (x << 2)) +#define TRNG_CTRL 0x58fc +#define TRNG_DATA_RDY 0x5900 +#define TRNG_DATA 0x5904 + +/* cipher addr */ +#define HDCP_REVISION 0x60000 +#define INTERRUPT_SOURCE 0x60004 +#define INTERRUPT_MASK 0x60008 +#define HDCP_CIPHER_CONFIG 0x6000c +#define AES_128_KEY_0 0x60010 +#define AES_128_KEY_1 0x60014 +#define AES_128_KEY_2 0x60018 +#define AES_128_KEY_3 0x6001c +#define AES_128_RANDOM_0 0x60020 +#define AES_128_RANDOM_1 0x60024 +#define CIPHER14_KM_0 0x60028 +#define CIPHER14_KM_1 0x6002c +#define CIPHER14_STATUS 0x60030 +#define CIPHER14_RI_PJ_STATUS 0x60034 +#define CIPHER_MODE 0x60038 +#define CIPHER14_AN_0 0x6003c +#define CIPHER14_AN_1 0x60040 +#define CIPHER22_AUTH 0x60044 +#define CIPHER14_R0_DP_STATUS 0x60048 +#define CIPHER14_BOOTSTRAP 0x6004c + +#define APB_IRAM_PATH BIT(2) +#define APB_DRAM_PATH BIT(1) +#define APB_XT_RESET BIT(0) + +/* mailbox */ +#define MB_OPCODE_ID 0 +#define MB_MODULE_ID 1 +#define MB_SIZE_MSB_ID 2 +#define MB_SIZE_LSB_ID 3 +#define MB_DATA_ID 4 + +#define MB_MODULE_ID_DP_TX 0x01 +#define MB_MODULE_ID_HDCP_TX 0x07 +#define MB_MODULE_ID_HDCP_RX 0x08 +#define MB_MODULE_ID_HDCP_GENERAL 0x09 +#define MB_MODULE_ID_GENERAL 0x0a + +/* general opcode */ +#define GENERAL_MAIN_CONTROL 0x01 +#define GENERAL_TEST_ECHO 0x02 +#define GENERAL_BUS_SETTINGS 0x03 +#define GENERAL_TEST_ACCESS 0x04 + +#define DPTX_SET_POWER_MNG 0x00 +#define DPTX_SET_HOST_CAPABILITIES 0x01 +#define DPTX_GET_EDID 0x02 +#define DPTX_READ_DPCD 0x03 +#define DPTX_WRITE_DPCD 0x04 +#define DPTX_ENABLE_EVENT 0x05 +#define DPTX_WRITE_REGISTER 0x06 +#define DPTX_READ_REGISTER 0x07 +#define DPTX_WRITE_FIELD 0x08 +#define DPTX_TRAINING_CONTROL 0x09 +#define DPTX_READ_EVENT 0x0a +#define DPTX_READ_LINK_STAT 0x0b +#define DPTX_SET_VIDEO 0x0c +#define DPTX_SET_AUDIO 0x0d +#define DPTX_GET_LAST_AUX_STAUS 0x0e +#define DPTX_SET_LINK_BREAK_POINT 0x0f +#define DPTX_FORCE_LANES 0x10 +#define DPTX_HPD_STATE 0x11 + +#define DPTX_EVENT_ENABLE_HPD BIT(0) +#define DPTX_EVENT_ENABLE_TRAINING BIT(1) + +#define LINK_TRAINING_NOT_ACTIVE 0 +#define LINK_TRAINING_RUN 1 +#define LINK_TRAINING_RESTART 2 + +#define CONTROL_VIDEO_IDLE 0 +#define CONTROL_VIDEO_VALID 1 + +#define VIF_BYPASS_INTERLACE BIT(13) +#define INTERLACE_FMT_DET BIT(12) +#define INTERLACE_DTCT_WIN 0x20 + +#define DP_FRAMER_SP_INTERLACE_EN BIT(2) +#define DP_FRAMER_SP_HSP BIT(1) +#define DP_FRAMER_SP_VSP BIT(0) + +/* capability */ +#define AUX_HOST_INVERT 3 +#define FAST_LT_SUPPORT 1 +#define FAST_LT_NOT_SUPPORT 0 +#define LANE_MAPPING_NORMAL 0xe4 +#define LANE_MAPPING_FLIPPED 0x1b +#define ENHANCED 1 + +#define FULL_LT_STARTED BIT(0) +#define FASE_LT_STARTED BIT(1) +#define CLK_RECOVERY_FINISHED BIT(2) +#define EQ_PHASE_FINISHED BIT(3) +#define FASE_LT_START_FINISHED BIT(4) +#define CLK_RECOVERY_FAILED BIT(5) +#define EQ_PHASE_FAILED BIT(6) +#define FASE_LT_FAILED BIT(7) + +#define DPTX_HPD_EVENT BIT(0) +#define DPTX_TRAINING_EVENT BIT(1) +#define HDCP_TX_STATUS_EVENT BIT(4) +#define HDCP2_TX_IS_KM_STORED_EVENT BIT(5) +#define HDCP2_TX_STORE_KM_EVENT BIT(6) +#define HDCP_TX_IS_RECEIVER_ID_VALID_EVENT BIT(7) + +#define EDID_LENGTH_BYTE 0 +#define EDID_SEGMENT_BUMBER 1 +#define EDID_DATA 2 +#define EDID_BLOCK_SIZE 128 + +#define TU_SIZE 64 + +/* audio */ +#define AUDIO_PACK_EN(x) (x << 8) +#define SAMPLING_FREQ(x) (x << 16) +#define ORIGINAL_SAMP_FREQ(x) (x << 24) +#define SYNC_WR_TO_CH_ZERO BIT(1) + +enum voltage_swing_level { + VOLTAGE_LEVEL_0, + VOLTAGE_LEVEL_1, + VOLTAGE_LEVEL_2, + VOLTAGE_LEVEL_3, +}; + +enum pre_emphasis_level { + PRE_EMPHASIS_LEVEL_0, + PRE_EMPHASIS_LEVEL_1, + PRE_EMPHASIS_LEVEL_2, + PRE_EMPHASIS_LEVEL_3, +}; + +enum pattern_set { + PRBS7 = BIT(0), + D10_2 = BIT(1), + TRAINING_PTN1 = BIT(2), + TRAINING_PTN2 = BIT(3), + DP_NONE = BIT(4) +}; + +enum VIC_PXL_ENCODING_FORMAT { + PXL_RGB = 0x1, + YCBCR_4_4_4 = 0x2, + YCBCR_4_2_2 = 0x4, + YCBCR_4_2_0 = 0x8, + Y_ONLY = 0x10, +}; + +enum VIC_COLOR_DEPTH { + BCS_6 = 0x1, + BCS_8 = 0x2, + BCS_10 = 0x4, + BCS_12 = 0x8, + BCS_16 = 0x10, +}; + +#endif /* _CDN_DP_REG_H */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index edd7ec2..623d9e3 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -969,7 +969,10 @@ static void vop_crtc_enable(struct drm_crtc *crtc) vop_dsp_hold_valid_irq_disable(vop); }

- pin_pol = 0x8; + if (s->output_type != DRM_MODE_CONNECTOR_DisplayPort) + pin_pol = 0x8; + else + pin_pol = 0; pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1; pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1); VOP_CTRL_SET(vop, pin_pol, pin_pol); @@ -991,6 +994,10 @@ static void vop_crtc_enable(struct drm_crtc *crtc) VOP_CTRL_SET(vop, mipi_pin_pol, pin_pol); VOP_CTRL_SET(vop, mipi_en, 1); break; + case DRM_MODE_CONNECTOR_DisplayPort: + VOP_CTRL_SET(vop, dp_pin_pol, pin_pol); + VOP_CTRL_SET(vop, dp_en, 1); + break; default: DRM_ERROR("unsupport connector_type[%d]\n", s->output_type); } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h index ff4f52e..50a045c 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h @@ -45,6 +45,7 @@ struct vop_ctrl { struct vop_reg edp_en; struct vop_reg hdmi_en; struct vop_reg mipi_en; + struct vop_reg dp_en; struct vop_reg out_mode; struct vop_reg dither_down; struct vop_reg dither_up; @@ -53,6 +54,7 @@ struct vop_ctrl { struct vop_reg hdmi_pin_pol; struct vop_reg edp_pin_pol; struct vop_reg mipi_pin_pol; + struct vop_reg dp_pin_pol;

struct vop_reg htotal_pw; struct vop_reg hact_st_end; diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index 5b1ae1f..dcf172e 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -281,6 +281,7 @@ static const struct vop_data rk3288_vop = { static const struct vop_ctrl rk3399_ctrl_data = { .standby = VOP_REG(RK3399_SYS_CTRL, 0x1, 22), .gate_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 23), + .dp_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 11), .rgb_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 12), .hdmi_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 13), .edp_en = VOP_REG(RK3399_SYS_CTRL, 0x1, 14), @@ -290,6 +291,7 @@ static const struct vop_ctrl rk3399_ctrl_data = { .data_blank = VOP_REG(RK3399_DSP_CTRL0, 0x1, 19), .out_mode = VOP_REG(RK3399_DSP_CTRL0, 0xf, 0), .rgb_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 16), + .dp_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 16), .hdmi_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 20), .edp_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 24), .mipi_pin_pol = VOP_REG(RK3399_DSP_CTRL1, 0xf, 28), diff --git a/include/sound/cdn-dp-audio.h b/include/sound/cdn-dp-audio.h new file mode 100644 index 0000000..8c6e55c --- /dev/null +++ b/include/sound/cdn-dp-audio.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2016 Chris Zhong zyw@rock-chips.com + * Copyright (C) 2016 ROCKCHIP, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __CDN_DP_AUDIO_H__ +#define __CDN_DP_AUDIO_H__ + +#include <linux/platform_device.h> + +#define AUDIO_TYPE_I2S 0 +#define AUDIO_TYPE_SPIDIF_INTERNAL 1 +#define AUDIO_TYPE_SPIDIF_EXTERNAL 2 + +enum AUDIO_TYPE { + TYPE_I2S = 0, + TYPE_SPDIF = 1, +}; + +struct audio_info { + enum AUDIO_TYPE type; + int freq; + int channels; + int word_length; +}; + +struct cdn_dp_audio_ops { + int (*audio_startup)(void *dp_dev, struct audio_info *audio); + int (*audio_shutdown)(void *dp_dev, struct audio_info *audio); + int (*audio_start)(void *dp_dev, struct audio_info *audio); + int (*audio_stop)(void *dp_dev, struct audio_info *audio); + int (*audio_config)(void *dp_dev, struct audio_info *audio); +}; + +/* DP audio initalization data */ +struct cdn_dp_audio_pdata { + struct device *dev; + const struct cdn_dp_audio_ops *ops; + void *data; +}; + +#endif /* __CDN_DP_AUDIO_H__ */

The driver is used for cdn dp codec embedded in rk3399

Signed-off-by: Chris Zhong zyw@rock-chips.com

---

.../bindings/sound/rockchip-cdn-dp-audio.txt | 12 ++ sound/soc/rockchip/Kconfig | 9 ++ sound/soc/rockchip/Makefile | 2 + sound/soc/rockchip/rockchip-cdn-dp-audio.c | 167 +++++++++++++++++++++ 4 files changed, 190 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/rockchip-cdn-dp-audio.txt create mode 100644 sound/soc/rockchip/rockchip-cdn-dp-audio.c

diff --git a/Documentation/devicetree/bindings/sound/rockchip-cdn-dp-audio.txt b/Documentation/devicetree/bindings/sound/rockchip-cdn-dp-audio.txt new file mode 100644 index 0000000..b7b0898 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rockchip-cdn-dp-audio.txt @@ -0,0 +1,12 @@ +Rockchip cdn dp audio bindings + +Required properties: +- compatible: platform specific, must be "rockchip,cdn-dp-audio" +- i2s-controller: the device of i2s controller + +Example: + + cdn_dp_audio: cdn-dp_audio { + compatible = "rockchip,cdn-dp-audio"; + i2s-controller = <&i2s2>; + }; diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig index f1e0c70..7e7d905 100644 --- a/sound/soc/rockchip/Kconfig +++ b/sound/soc/rockchip/Kconfig @@ -15,6 +15,15 @@ config SND_SOC_ROCKCHIP_I2S Rockchip I2S device. The device supports upto maximum of 8 channels each for play and record.

+config SND_SOC_ROCKCHIP_CDN_DP_AUDIO + tristate "cdn DP audio support" + depends on ROCKCHIP_CDN_DP + select SND_SOC_ROCKCHIP_I2S + select SND_SOC_CDN_DP_AUDIO + help + Say Y or M here if you want to add support for SoC audio on Rockchip + boards using the cdn dp codec, such as RK3399. + config SND_SOC_ROCKCHIP_SPDIF tristate "Rockchip SPDIF Device Driver" depends on CLKDEV_LOOKUP && SND_SOC_ROCKCHIP diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile index c0bf560..9367f55 100644 --- a/sound/soc/rockchip/Makefile +++ b/sound/soc/rockchip/Makefile @@ -5,8 +5,10 @@ snd-soc-rockchip-spdif-objs := rockchip_spdif.o obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-rockchip-i2s.o obj-$(CONFIG_SND_SOC_ROCKCHIP_SPDIF) += snd-soc-rockchip-spdif.o

+snd-soc-rockchip-cdn-dp-objs := rockchip-cdn-dp-audio.o snd-soc-rockchip-max98090-objs := rockchip_max98090.o snd-soc-rockchip-rt5645-objs := rockchip_rt5645.o

+obj-$(CONFIG_SND_SOC_ROCKCHIP_CDN_DP_AUDIO) += snd-soc-rockchip-cdn-dp.o obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o obj-$(CONFIG_SND_SOC_ROCKCHIP_RT5645) += snd-soc-rockchip-rt5645.o diff --git a/sound/soc/rockchip/rockchip-cdn-dp-audio.c b/sound/soc/rockchip/rockchip-cdn-dp-audio.c new file mode 100644 index 0000000..2bf6649 --- /dev/null +++ b/sound/soc/rockchip/rockchip-cdn-dp-audio.c @@ -0,0 +1,167 @@ +/* + * rockchip-cdn-dp-card.c + * + * ROCKCHIP ALSA SoC DAI driver for cdn dp audio on rockchip processors. + * + * Copyright (C) 2016 Chris Zhong zyw@rock-chips.com + * Copyright (C) 2016 ROCKCHIP, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <sound/soc.h> +#include <sound/pcm.h> +#include <sound/core.h> +#include <sound/pcm_params.h> + +#include "rockchip_i2s.h" + +#define DRV_NAME "rockchip-cdn-dp-audio" + +static int cdn_dp_audio_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int dai_fmt = rtd->dai_link->dai_fmt; + int mclk, ret; + + switch (params_rate(params)) { + case 8000: + case 16000: + case 24000: + case 32000: + case 48000: + case 64000: + case 96000: + mclk = 12288000; + break; + case 11025: + case 22050: + case 44100: + case 88200: + mclk = 11289600; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); + if (ret < 0) { + dev_err(cpu_dai->dev, "failed to set cpu_dai fmt.\n"); + return ret; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(cpu_dai->dev, "failed to set cpu_dai sysclk.\n"); + return ret; + } + + return 0; +} + +static struct snd_soc_ops cdn_dp_dai_ops = { + .hw_params = cdn_dp_audio_hw_params, +}; + +static struct snd_soc_dai_link cdn_dp_dai = { + .name = "cdn_dp", + .stream_name = "cdn_dp", + .codec_name = "cdn-dp-audio", + .codec_dai_name = "cdn-dp-hifi", + .ops = &cdn_dp_dai_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, +}; + +static struct snd_soc_card cdn_dp_audio_card = { + .name = "cdn_dp", + .owner = THIS_MODULE, + .dai_link = &cdn_dp_dai, + .num_links = 1, +}; + +static int cdn_dp_audio_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &cdn_dp_audio_card; + struct device_node *np = pdev->dev.of_node; + int ret; + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, card); + + cdn_dp_dai.cpu_of_node = of_parse_phandle(np, "i2s-controller", 0); + if (!cdn_dp_dai.cpu_of_node) { + dev_err(&pdev->dev, "Property 'i2s-controller' missing !\n"); + goto free_priv_data; + } + + cdn_dp_dai.platform_of_node = cdn_dp_dai.cpu_of_node; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "register card failed (%d)\n", ret); + card->dev = NULL; + goto free_cpu_of_node; + } + + dev_info(&pdev->dev, "rockchip cdn dp audio init success.\n"); + + return 0; + +free_cpu_of_node: + cdn_dp_dai.cpu_of_node = NULL; + cdn_dp_dai.platform_of_node = NULL; +free_priv_data: + snd_soc_card_set_drvdata(card, NULL); + platform_set_drvdata(pdev, NULL); + card->dev = NULL; + + return ret; +} + +static int cdn_dp_audio_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + snd_soc_card_set_drvdata(card, NULL); + platform_set_drvdata(pdev, NULL); + card->dev = NULL; + + return 0; +} + +static const struct of_device_id cdn_dp_audio_of_match[] = { + { .compatible = "rockchip,cdn-dp-audio", }, + {}, +}; + +static struct platform_driver cdn_dp_audio_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = cdn_dp_audio_of_match, + }, + .probe = cdn_dp_audio_probe, + .remove = cdn_dp_audio_remove, +}; +module_platform_driver(cdn_dp_audio_driver); + +MODULE_AUTHOR("Chris Zhong zyw@rock-chips.com"); +MODULE_DESCRIPTION("CDN DP Audio ASoC Interface"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, cdn_dp_audio_of_match);