Add an op in hdmi_codec_ops so codec driver can register callback function to handle plug event.

Driver in DRM can use this callback function to report connector status.

Signed-off-by: Cheng-Yi Chiang cychiang@chromium.org --- include/sound/hdmi-codec.h | 16 +++++++++++++ sound/soc/codecs/hdmi-codec.c | 45 +++++++++++++++++++++++++++++++++++ 2 files changed, 61 insertions(+)

diff --git a/include/sound/hdmi-codec.h b/include/sound/hdmi-codec.h index 7fea496f1f34..9a8661680256 100644 --- a/include/sound/hdmi-codec.h +++ b/include/sound/hdmi-codec.h @@ -47,6 +47,9 @@ struct hdmi_codec_params { int channels; };

+typedef void (*hdmi_codec_plugged_cb)(struct device *dev, + bool plugged); + struct hdmi_codec_pdata; struct hdmi_codec_ops { /* @@ -88,6 +91,13 @@ struct hdmi_codec_ops { */ int (*get_dai_id)(struct snd_soc_component *comment, struct device_node *endpoint); + + /* + * Hook callback function to handle connector plug event. + * Optional + */ + int (*hook_plugged_cb)(struct device *dev, void *data, + hdmi_codec_plugged_cb fn); };

/* HDMI codec initalization data */ @@ -99,6 +109,12 @@ struct hdmi_codec_pdata { void *data; };

+struct snd_soc_component; +struct snd_soc_jack; + +int hdmi_codec_set_jack_detect(struct snd_soc_component *component, + struct snd_soc_jack *jack); + #define HDMI_CODEC_DRV_NAME "hdmi-audio-codec"

#endif /* __HDMI_CODEC_H__ */ diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c index 0bf1c8cad108..32bf7441be5c 100644 --- a/sound/soc/codecs/hdmi-codec.c +++ b/sound/soc/codecs/hdmi-codec.c @@ -7,6 +7,7 @@ #include <linux/module.h> #include <linux/string.h> #include <sound/core.h> +#include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> @@ -274,6 +275,8 @@ struct hdmi_codec_priv { struct snd_pcm_chmap *chmap_info; unsigned int chmap_idx; struct mutex lock; + struct snd_soc_jack *jack; + unsigned int jack_status; };

static const struct snd_soc_dapm_widget hdmi_widgets[] = { @@ -663,6 +666,48 @@ static int hdmi_dai_probe(struct snd_soc_dai *dai) return 0; }

+static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, + unsigned int jack_status) +{ + if (hcp->jack && jack_status != hcp->jack_status) { + snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT); + hcp->jack_status = jack_status; + } +} + +static void plugged_cb(struct device *dev, bool plugged) +{ + struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); + + if (plugged) + hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT); + else + hdmi_codec_jack_report(hcp, 0); +} + +/** + * hdmi_codec_set_jack_detect - register HDMI plugged callback + * @component: the hdmi-codec instance + * @jack: ASoC jack to report (dis)connection events on + */ +int hdmi_codec_set_jack_detect(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); + int ret = -EOPNOTSUPP; + + if (hcp->hcd.ops->hook_plugged_cb) { + hcp->jack = jack; + ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, + hcp->hcd.data, + plugged_cb); + if (ret) + hcp->jack = NULL; + } + return ret; +} +EXPORT_SYMBOL_GPL(hdmi_codec_set_jack_detect); + static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) { struct hdmi_codec_daifmt *cf = dai->playback_dma_data;

Allow codec driver register callback function for plug event.

The callback registration flow: dw-hdmi <--- hw-hdmi-i2s-audio <--- hdmi-codec

dw-hdmi-i2s-audio implements hook_plugged_cb op so codec driver can register the callback.

dw-hdmi implements set_plugged_cb op so platform device can register the callback.

When connector plug/unplug event happens, report this event using the callback.

Make sure that audio and drm are using the single source of truth for connector status.

Signed-off-by: Cheng-Yi Chiang cychiang@chromium.org --- .../gpu/drm/bridge/synopsys/dw-hdmi-audio.h | 3 + .../drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 10 ++++ drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 55 ++++++++++++++++++- 3 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h index 63b5756f463b..f523c590984e 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h @@ -2,6 +2,8 @@ #ifndef DW_HDMI_AUDIO_H #define DW_HDMI_AUDIO_H

+#include <sound/hdmi-codec.h> + struct dw_hdmi;

struct dw_hdmi_audio_data { @@ -17,6 +19,7 @@ struct dw_hdmi_i2s_audio_data {

void (*write)(struct dw_hdmi *hdmi, u8 val, int offset); u8 (*read)(struct dw_hdmi *hdmi, int offset); + int (*set_plugged_cb)(struct dw_hdmi *hdmi, hdmi_codec_plugged_cb fn); };

#endif diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c index 5cbb71a866d5..7b93cf05c985 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c @@ -104,10 +104,20 @@ static int dw_hdmi_i2s_get_dai_id(struct snd_soc_component *component, return -EINVAL; }

+static int dw_hdmi_i2s_hook_plugged_cb(struct device *dev, void *data, + hdmi_codec_plugged_cb fn) +{ + struct dw_hdmi_i2s_audio_data *audio = data; + struct dw_hdmi *hdmi = audio->hdmi; + + return audio->set_plugged_cb(hdmi, fn); +} + static struct hdmi_codec_ops dw_hdmi_i2s_ops = { .hw_params = dw_hdmi_i2s_hw_params, .audio_shutdown = dw_hdmi_i2s_audio_shutdown, .get_dai_id = dw_hdmi_i2s_get_dai_id, + .hook_plugged_cb = dw_hdmi_i2s_hook_plugged_cb, };

static int snd_dw_hdmi_probe(struct platform_device *pdev) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 045b1b13fd0e..ce6646067472 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -26,6 +26,8 @@ #include <drm/drm_probe_helper.h> #include <drm/bridge/dw_hdmi.h>

+#include <sound/hdmi-codec.h> + #include <uapi/linux/media-bus-format.h> #include <uapi/linux/videodev2.h>

@@ -185,6 +187,9 @@ struct dw_hdmi { void (*disable_audio)(struct dw_hdmi *hdmi);

struct cec_notifier *cec_notifier; + + hdmi_codec_plugged_cb plugged_cb; + enum drm_connector_status last_connector_result; };

#define HDMI_IH_PHY_STAT0_RX_SENSE \ @@ -209,6 +214,40 @@ static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset) return val; }

+static void handle_plugged_change(struct dw_hdmi *hdmi, bool plugged) +{ + struct platform_device *codec_pdev; + + if (!hdmi->audio || IS_ERR(hdmi->audio)) + return; + codec_pdev = platform_get_drvdata(hdmi->audio); + if (!codec_pdev || IS_ERR(codec_pdev)) + return; + if (!hdmi->plugged_cb) + return; + + hdmi->plugged_cb(&codec_pdev->dev, plugged); +} + +static int hdmi_set_plugged_cb(struct dw_hdmi *hdmi, hdmi_codec_plugged_cb fn) +{ + bool plugged; + struct platform_device *codec_pdev; + + if (!hdmi->audio || IS_ERR(hdmi->audio)) + return -EINVAL; + codec_pdev = platform_get_drvdata(hdmi->audio); + if (!codec_pdev || IS_ERR(codec_pdev)) + return -EINVAL; + + mutex_lock(&hdmi->mutex); + hdmi->plugged_cb = fn; + plugged = hdmi->last_connector_result == connector_status_connected; + handle_plugged_change(hdmi, plugged); + mutex_unlock(&hdmi->mutex); + return 0; +} + static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg) { regmap_update_bits(hdmi->regm, reg << hdmi->reg_shift, mask, data); @@ -2044,6 +2083,7 @@ dw_hdmi_connector_detect(struct drm_connector *connector, bool force) { struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi, connector); + enum drm_connector_status result;

mutex_lock(&hdmi->mutex); hdmi->force = DRM_FORCE_UNSPECIFIED; @@ -2051,7 +2091,18 @@ dw_hdmi_connector_detect(struct drm_connector *connector, bool force) dw_hdmi_update_phy_mask(hdmi); mutex_unlock(&hdmi->mutex);

- return hdmi->phy.ops->read_hpd(hdmi, hdmi->phy.data); + result = hdmi->phy.ops->read_hpd(hdmi, hdmi->phy.data); + + mutex_lock(&hdmi->mutex); + if (result != hdmi->last_connector_result) { + dev_dbg(hdmi->dev, "read_hpd result: %d", result); + handle_plugged_change(hdmi, + result == connector_status_connected); + hdmi->last_connector_result = result; + } + mutex_unlock(&hdmi->mutex); + + return result; }

static int dw_hdmi_connector_get_modes(struct drm_connector *connector) @@ -2460,6 +2511,7 @@ __dw_hdmi_probe(struct platform_device *pdev, hdmi->rxsense = true; hdmi->phy_mask = (u8)~(HDMI_PHY_HPD | HDMI_PHY_RX_SENSE); hdmi->mc_clkdis = 0x7f; + hdmi->last_connector_result = connector_status_disconnected;

mutex_init(&hdmi->mutex); mutex_init(&hdmi->audio_mutex); @@ -2653,6 +2705,7 @@ __dw_hdmi_probe(struct platform_device *pdev, audio.hdmi = hdmi; audio.write = hdmi_writeb; audio.read = hdmi_readb; + audio.set_plugged_cb = hdmi_set_plugged_cb; hdmi->enable_audio = dw_hdmi_i2s_audio_enable; hdmi->disable_audio = dw_hdmi_i2s_audio_disable;

Use two dai_links. One for HDMI and one for max98090. With this setup, audio can play to speaker and HDMI selectively.

Signed-off-by: Cheng-Yi Chiang cychiang@chromium.org --- sound/soc/rockchip/Kconfig | 3 +- sound/soc/rockchip/rockchip_max98090.c | 96 ++++++++++++++++++++------ 2 files changed, 75 insertions(+), 24 deletions(-)

diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig index b43657e6e655..d610b553ea3b 100644 --- a/sound/soc/rockchip/Kconfig +++ b/sound/soc/rockchip/Kconfig @@ -40,9 +40,10 @@ config SND_SOC_ROCKCHIP_MAX98090 select SND_SOC_ROCKCHIP_I2S select SND_SOC_MAX98090 select SND_SOC_TS3A227E + select SND_SOC_HDMI_CODEC help Say Y or M here if you want to add support for SoC audio on Rockchip - boards using the MAX98090 codec, such as Veyron. + boards using the MAX98090 codec and HDMI codec, such as Veyron.

config SND_SOC_ROCKCHIP_RT5645 tristate "ASoC support for Rockchip boards using a RT5645/RT5650 codec" diff --git a/sound/soc/rockchip/rockchip_max98090.c b/sound/soc/rockchip/rockchip_max98090.c index c5fc24675a33..c82948e383da 100644 --- a/sound/soc/rockchip/rockchip_max98090.c +++ b/sound/soc/rockchip/rockchip_max98090.c @@ -11,6 +11,7 @@ #include <linux/gpio.h> #include <linux/of_gpio.h> #include <sound/core.h> +#include <sound/hdmi-codec.h> #include <sound/jack.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -41,6 +42,7 @@ static const struct snd_soc_dapm_widget rk_dapm_widgets[] = { SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_LINE("HDMI", NULL), };

static const struct snd_soc_dapm_route rk_audio_map[] = { @@ -52,6 +54,7 @@ static const struct snd_soc_dapm_route rk_audio_map[] = { {"Headphone", NULL, "HPR"}, {"Speaker", NULL, "SPKL"}, {"Speaker", NULL, "SPKR"}, + {"HDMI", NULL, "TX"}, };

static const struct snd_kcontrol_new rk_mc_controls[] = { @@ -59,6 +62,7 @@ static const struct snd_kcontrol_new rk_mc_controls[] = { SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Int Mic"), SOC_DAPM_PIN_SWITCH("Speaker"), + SOC_DAPM_PIN_SWITCH("HDMI"), };

static int rk_aif1_hw_params(struct snd_pcm_substream *substream, @@ -92,38 +96,63 @@ static int rk_aif1_hw_params(struct snd_pcm_substream *substream,

ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, SND_SOC_CLOCK_OUT); - if (ret < 0) { - dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); + if (ret) { + dev_err(cpu_dai->dev, "Can't set cpu dai clock %d\n", ret); return ret; }

+ /* HDMI codec dai does not need to set sysclk. */ + if (!strcmp(rtd->dai_link->name, "HDMI")) + return 0; + ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN); - if (ret < 0) { - dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); + if (ret) { + dev_err(codec_dai->dev, "Can't set codec dai clock %d\n", ret); return ret; }

- return ret; + return 0; }

static const struct snd_soc_ops rk_aif1_ops = { .hw_params = rk_aif1_hw_params, };

-SND_SOC_DAILINK_DEFS(hifi, +SND_SOC_DAILINK_DEFS(analog, DAILINK_COMP_ARRAY(COMP_EMPTY()), DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")), DAILINK_COMP_ARRAY(COMP_EMPTY()));

-static struct snd_soc_dai_link rk_dailink = { - .name = "max98090", - .stream_name = "Audio", - .ops = &rk_aif1_ops, - /* set max98090 as slave */ - .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_CBS_CFS, - SND_SOC_DAILINK_REG(hifi), +SND_SOC_DAILINK_DEFS(hdmi, + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_CODEC(HDMI_CODEC_DRV_NAME, "i2s-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +enum { + DAILINK_MAX98090, + DAILINK_HDMI, +}; + +/* max98090 and HDMI codec dai_link */ +static struct snd_soc_dai_link rk_dailinks[] = { + [DAILINK_MAX98090] = { + .name = "max98090", + .stream_name = "Analog", + .ops = &rk_aif1_ops, + /* set max98090 as slave */ + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(analog), + }, + [DAILINK_HDMI] = { + .name = "HDMI", + .stream_name = "HDMI", + .ops = &rk_aif1_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(hdmi), + } };

static int rk_98090_headset_init(struct snd_soc_component *component); @@ -136,8 +165,8 @@ static struct snd_soc_aux_dev rk_98090_headset_dev = { static struct snd_soc_card snd_soc_card_rk = { .name = "ROCKCHIP-I2S", .owner = THIS_MODULE, - .dai_link = &rk_dailink, - .num_links = 1, + .dai_link = rk_dailinks, + .num_links = ARRAY_SIZE(rk_dailinks), .aux_dev = &rk_98090_headset_dev, .num_aux_devs = 1, .dapm_widgets = rk_dapm_widgets, @@ -173,27 +202,48 @@ static int snd_rk_mc_probe(struct platform_device *pdev) int ret = 0; struct snd_soc_card *card = &snd_soc_card_rk; struct device_node *np = pdev->dev.of_node; + struct device_node *np_analog; + struct device_node *np_cpu; + struct of_phandle_args args;

/* register the soc card */ card->dev = &pdev->dev;

- rk_dailink.codecs->of_node = of_parse_phandle(np, - "rockchip,audio-codec", 0); - if (!rk_dailink.codecs->of_node) { + np_analog = of_parse_phandle(np, "rockchip,audio-codec", 0); + if (!np_analog) { dev_err(&pdev->dev, "Property 'rockchip,audio-codec' missing or invalid\n"); return -EINVAL; } + rk_dailinks[DAILINK_MAX98090].codecs->of_node = np_analog; + + ret = of_parse_phandle_with_fixed_args(np, "rockchip,audio-codec", + 0, 0, &args); + if (ret) { + dev_err(&pdev->dev, + "Unable to parse property 'rockchip,audio-codec'\n"); + return ret; + } + + ret = snd_soc_get_dai_name( + &args, &rk_dailinks[DAILINK_MAX98090].codecs->dai_name); + if (ret) { + dev_err(&pdev->dev, "Unable to get codec dai_name\n"); + return ret; + } + + np_cpu = of_parse_phandle(np, "rockchip,i2s-controller", 0);

- rk_dailink.cpus->of_node = of_parse_phandle(np, - "rockchip,i2s-controller", 0); - if (!rk_dailink.cpus->of_node) { + if (!np_cpu) { dev_err(&pdev->dev, "Property 'rockchip,i2s-controller' missing or invalid\n"); return -EINVAL; }

- rk_dailink.platforms->of_node = rk_dailink.cpus->of_node; + rk_dailinks[DAILINK_MAX98090].cpus->of_node = np_cpu; + rk_dailinks[DAILINK_MAX98090].platforms->of_node = np_cpu; + rk_dailinks[DAILINK_HDMI].cpus->of_node = np_cpu; + rk_dailinks[DAILINK_HDMI].platforms->of_node = np_cpu;

rk_98090_headset_dev.codec_of_node = of_parse_phandle(np, "rockchip,headset-codec", 0);