Hi Jose, Thank you for the patch. On Monday 28 Mar 2016 15:36:09 Jose Abreu wrote:
This patch adds audio support for the ADV7511 HDMI transmitter using ALSA SoC.
The code was ported from Analog Devices linux tree from commit 1770c4a1e32b ("Merge remote-tracking branch 'xilinx/master' into xcomm_zynq"), which is available at: - https://github.com/analogdevicesinc/linux/
The main core file was renamed from adv7511.c to adv7511_core.c so that audio and video compile into a single adv7511.ko module and to keep up with Analog Devices kernel tree.
The audio can be disabled using menu-config so it is possible to use only video mode.
The HDMI mode is automatically started at boot and the audio (when enabled) registers as a codec into ALSA.
SPDIF DAI format was also added to ASoC as it is required by adv7511 audio.
Signed-off-by: Jose Abreu <joabreu@synopsys.com> ---
No changes v1 -> v2.
drivers/gpu/drm/i2c/Kconfig | 11 + drivers/gpu/drm/i2c/Makefile | 2 + drivers/gpu/drm/i2c/adv7511.c | 1024 ------------------------------- drivers/gpu/drm/i2c/adv7511.h | 41 ++ drivers/gpu/drm/i2c/adv7511_audio.c | 310 +++++++++++ drivers/gpu/drm/i2c/adv7511_core.c | 1005 ++++++++++++++++++++++++++++++
Please use git-format-patch -M to detect renames if you send a new version of this series, it will help with review.
include/sound/soc-dai.h | 1 + 7 files changed, 1370 insertions(+), 1024 deletions(-) delete mode 100644 drivers/gpu/drm/i2c/adv7511.c create mode 100644 drivers/gpu/drm/i2c/adv7511_audio.c create mode 100644 drivers/gpu/drm/i2c/adv7511_core.c
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diff --git a/drivers/gpu/drm/i2c/adv7511_core.c b/drivers/gpu/drm/i2c/adv7511_core.c new file mode 100644 index 0000000..d54256a --- /dev/null +++ b/drivers/gpu/drm/i2c/adv7511_core.c
[snip]
+static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id) +{ + struct adv7511_link_config link_config; + struct adv7511 *adv7511; + struct device *dev = &i2c->dev; + unsigned int val; + int ret; + + if (!dev->of_node) + return -EINVAL; + + adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL); + if (!adv7511) + return -ENOMEM; + + adv7511->powered = false; + adv7511->status = connector_status_disconnected; + + ret = adv7511_parse_dt(dev->of_node, &link_config); + if (ret) + return ret; + + /* + * The power down GPIO is optional. If present, toggle it from active to + * inactive to wake up the encoder. + */ + adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH); + if (IS_ERR(adv7511->gpio_pd)) + return PTR_ERR(adv7511->gpio_pd); + + if (adv7511->gpio_pd) { + mdelay(5); + gpiod_set_value_cansleep(adv7511->gpio_pd, 0); + } + + adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config); + if (IS_ERR(adv7511->regmap)) + return PTR_ERR(adv7511->regmap); + + ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val); + if (ret) + return ret; + dev_dbg(dev, "Rev. %d\n", val); + + ret = regmap_register_patch(adv7511->regmap, adv7511_fixed_registers, + ARRAY_SIZE(adv7511_fixed_registers)); + if (ret) + return ret; + + regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr); + regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR, + packet_i2c_addr); + regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR, cec_i2c_addr); + adv7511_packet_disable(adv7511, 0xffff); + + adv7511->i2c_main = i2c; + adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1); + if (!adv7511->i2c_edid) + return -ENOMEM; + + if (i2c->irq) { + init_waitqueue_head(&adv7511->wq); + + ret = devm_request_threaded_irq(dev, i2c->irq, NULL, + adv7511_irq_handler, + IRQF_ONESHOT, dev_name(dev), + adv7511); + if (ret) + goto err_i2c_unregister_device; + } + + /* CEC is unused for now */ + regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL, + ADV7511_CEC_CTRL_POWER_DOWN); + + adv7511_power_off(adv7511); + + i2c_set_clientdata(i2c, adv7511); + +#ifdef CONFIG_DRM_I2C_ADV7511_AUDIO + adv7511_audio_init(&i2c->dev); +#endif
Shouldn't we condition this to the audio channel being somehow described in DT ? If a board doesn't route audio signals to the ADV7511 audio input, there's no need to register an audio codec.
+ + adv7511_set_link_config(adv7511, &link_config); + + /* Enable HDMI mode */ + regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG, + ADV7511_HDMI_CFG_MODE_MASK, + ADV7511_HDMI_CFG_MODE_HDMI); + + return 0; + +err_i2c_unregister_device: + i2c_unregister_device(adv7511->i2c_edid); + + return ret; +}
-- Regards, Laurent Pinchart