diff options
| author | Jerome Brunet <jbrunet@baylibre.com> | 2019-08-12 14:50:16 +0200 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2019-08-14 15:03:36 +0200 |
| commit | fc1ca6e01d0a71fd4bd7a5a7cb8309a9dd48ddbc (patch) | |
| tree | 365894949198c50d33c38600f50cd8e0df87bd3d /drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | |
| parent | 43e88f670a5e4618609822853a5f659631c32505 (diff) | |
drm/bridge: dw-hdmi-i2s: add .get_eld support
Provide the eld to the generic hdmi-codec driver.
This will let the driver enforce the maximum channel number and set the
channel allocation depending on the hdmi sink.
Cc: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190812125016.20169-1-jbrunet@baylibre.com
Diffstat (limited to 'drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 11 |
1 files changed, 11 insertions, 0 deletions
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 b8ece9c1ba2c..1d15cf9b6821 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <drm/bridge/dw_hdmi.h> +#include <drm/drm_crtc.h> #include <sound/hdmi-codec.h> @@ -121,6 +122,15 @@ static void dw_hdmi_i2s_audio_shutdown(struct device *dev, void *data) dw_hdmi_audio_disable(hdmi); } +static int dw_hdmi_i2s_get_eld(struct device *dev, void *data, uint8_t *buf, + size_t len) +{ + struct dw_hdmi_i2s_audio_data *audio = data; + + memcpy(buf, audio->eld, min_t(size_t, MAX_ELD_BYTES, len)); + return 0; +} + static int dw_hdmi_i2s_get_dai_id(struct snd_soc_component *component, struct device_node *endpoint) { @@ -144,6 +154,7 @@ static int dw_hdmi_i2s_get_dai_id(struct snd_soc_component *component, static struct hdmi_codec_ops dw_hdmi_i2s_ops = { .hw_params = dw_hdmi_i2s_hw_params, .audio_shutdown = dw_hdmi_i2s_audio_shutdown, + .get_eld = dw_hdmi_i2s_get_eld, .get_dai_id = dw_hdmi_i2s_get_dai_id, }; |