| Message ID | 20241201-drm-bridge-hdmi-connector-v5-2-b5316e82f61a@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm: add DRM HDMI Codec framework | expand |
Hi, On Sun, Dec 01, 2024 at 02:44:06AM +0200, Dmitry Baryshkov wrote: > The no_capture_mute flag might differ from platform to platform, > especially in the case of the wrapping implementations, like the > upcoming DRM HDMI Codec framework. Move the flag next to all other flags > in struct hdmi_codec_pdata. > > Acked-by: Mark Brown <broonie@kernel.org> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> I appreciate it might be a dumb question, but I never really understood what no_capture_mute was all about. And in that context, why some drivers would need / use it, and some won't. Maxime
On Mon, Dec 02, 2024 at 01:06:09PM +0100, Maxime Ripard wrote: > On Sun, Dec 01, 2024 at 02:44:06AM +0200, Dmitry Baryshkov wrote: > > The no_capture_mute flag might differ from platform to platform, > > especially in the case of the wrapping implementations, like the > I appreciate it might be a dumb question, but I never really understood > what no_capture_mute was all about. And in that context, why some > drivers would need / use it, and some won't. It's just what it says, it's a flag saying the device doesn't support muting the capture side.
On Mon, Dec 02, 2024 at 12:59:22PM +0000, Mark Brown wrote: > On Mon, Dec 02, 2024 at 01:06:09PM +0100, Maxime Ripard wrote: > > On Sun, Dec 01, 2024 at 02:44:06AM +0200, Dmitry Baryshkov wrote: > > > > The no_capture_mute flag might differ from platform to platform, > > > especially in the case of the wrapping implementations, like the > > > I appreciate it might be a dumb question, but I never really understood > > what no_capture_mute was all about. And in that context, why some > > drivers would need / use it, and some won't. > > It's just what it says, it's a flag saying the device doesn't support > muting the capture side. Right, but then HDMI is output only, so it still doesn't really make sense to me why we'd want to mute the capture side? Maxime
On Mon, Dec 02, 2024 at 02:29:55PM +0100, Maxime Ripard wrote: > On Mon, Dec 02, 2024 at 12:59:22PM +0000, Mark Brown wrote: > > On Mon, Dec 02, 2024 at 01:06:09PM +0100, Maxime Ripard wrote: > > > On Sun, Dec 01, 2024 at 02:44:06AM +0200, Dmitry Baryshkov wrote: > > > > The no_capture_mute flag might differ from platform to platform, > > > > especially in the case of the wrapping implementations, like the > > > I appreciate it might be a dumb question, but I never really understood > > > what no_capture_mute was all about. And in that context, why some > > > drivers would need / use it, and some won't. > > It's just what it says, it's a flag saying the device doesn't support > > muting the capture side. > Right, but then HDMI is output only, so it still doesn't really make > sense to me why we'd want to mute the capture side? This is an ASoC patch and you didn't mention where the flag was... there's going to be HDMI capture hardware I guess?
On Mon, Dec 02, 2024 at 01:06:09PM +0100, Maxime Ripard wrote: > Hi, > > On Sun, Dec 01, 2024 at 02:44:06AM +0200, Dmitry Baryshkov wrote: > > The no_capture_mute flag might differ from platform to platform, > > especially in the case of the wrapping implementations, like the > > upcoming DRM HDMI Codec framework. Move the flag next to all other flags > > in struct hdmi_codec_pdata. > > > > Acked-by: Mark Brown <broonie@kernel.org> > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > > I appreciate it might be a dumb question, but I never really understood > what no_capture_mute was all about. And in that context, why some > drivers would need / use it, and some won't. Some platforms can not mute the HDMI capture (ARC?) path. See the following patches: - https://lore.kernel.org/all/1606372608-2329-1-git-send-email-shengjiu.wang@nxp.com/ - https://lore.kernel.org/all/1606372608-2329-1-git-send-email-shengjiu.wang@nxp.com/ Russell added a way to disable capture / playback support, but only TDA driver uses those. I think generally we should change those flags to be opt-in for capture, but that requires carefully reviewing all the platforms (and is a separate topic anyway).
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index 940083e5d2ddbfc56f14e2bdc6ddd0b9dd50b1f8..7734e389ca7692f7880aa9b8650e45aab228c7fd 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -1466,7 +1466,6 @@ static const struct hdmi_codec_ops it66121_audio_codec_ops = { .audio_shutdown = it66121_audio_shutdown, .mute_stream = it66121_audio_mute, .get_eld = it66121_audio_get_eld, - .no_capture_mute = 1, }; static int it66121_audio_codec_init(struct it66121_ctx *ctx, struct device *dev) @@ -1476,6 +1475,7 @@ static int it66121_audio_codec_init(struct it66121_ctx *ctx, struct device *dev) .i2s = 1, /* Only i2s support for now */ .spdif = 0, .max_i2s_channels = 8, + .no_capture_mute = 1, }; dev_dbg(dev, "%s\n", __func__); diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c index f0be803cc2274ca2199ed7661cf752b0a91434b6..5248676b0036a7e8f2142bd2f099c36efb529471 100644 --- a/drivers/gpu/drm/bridge/sii902x.c +++ b/drivers/gpu/drm/bridge/sii902x.c @@ -841,7 +841,6 @@ static const struct hdmi_codec_ops sii902x_audio_codec_ops = { .mute_stream = sii902x_audio_mute, .get_eld = sii902x_audio_get_eld, .get_dai_id = sii902x_audio_get_dai_id, - .no_capture_mute = 1, }; static int sii902x_audio_codec_init(struct sii902x *sii902x, @@ -864,6 +863,7 @@ static int sii902x_audio_codec_init(struct sii902x *sii902x, .i2s = 1, /* Only i2s support for now. */ .spdif = 0, .max_i2s_channels = 0, + .no_capture_mute = 1, }; u8 lanes[4]; int num_lanes, i; diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 6fc537c9048f5c8e57e30f083121c9aea6b99a5f..5130e96acc34c28fb7a509b8b2a858ad465137a2 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1660,7 +1660,6 @@ static const struct hdmi_codec_ops audio_codec_ops = { .audio_shutdown = hdmi_audio_shutdown, .mute_stream = hdmi_audio_mute, .get_eld = hdmi_audio_get_eld, - .no_capture_mute = 1, }; static int hdmi_register_audio_device(struct hdmi_context *hdata) @@ -1669,6 +1668,7 @@ static int hdmi_register_audio_device(struct hdmi_context *hdata) .ops = &audio_codec_ops, .max_i2s_channels = 6, .i2s = 1, + .no_capture_mute = 1, }; hdata->audio.pdev = platform_device_register_data( diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index 2160f05bbd16d2346e27365e5549b75ad26fdcb9..10a4195d667ff577183788f8fc7ca806660e2b9c 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -1165,7 +1165,6 @@ static const struct hdmi_codec_ops audio_codec_ops = { .audio_shutdown = tda998x_audio_shutdown, .mute_stream = tda998x_audio_mute_stream, .get_eld = tda998x_audio_get_eld, - .no_capture_mute = 1, }; static int tda998x_audio_codec_init(struct tda998x_priv *priv, @@ -1176,6 +1175,7 @@ static int tda998x_audio_codec_init(struct tda998x_priv *priv, .max_i2s_channels = 2, .no_i2s_capture = 1, .no_spdif_capture = 1, + .no_capture_mute = 1, }; if (priv->audio_port_enable[AUDIO_ROUTE_I2S]) diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index 1cc916b164713d71461a0b2ad370032a14604be6..6a42459792ec75692fadb45a75b138fc43cc37a2 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -2615,7 +2615,6 @@ static const struct hdmi_codec_ops mtk_dp_audio_codec_ops = { .audio_shutdown = mtk_dp_audio_shutdown, .get_eld = mtk_dp_audio_get_eld, .hook_plugged_cb = mtk_dp_audio_hook_plugged_cb, - .no_capture_mute = 1, }; static int mtk_dp_register_audio_driver(struct device *dev) @@ -2626,6 +2625,7 @@ static int mtk_dp_register_audio_driver(struct device *dev) .max_i2s_channels = 8, .i2s = 1, .data = mtk_dp, + .no_capture_mute = 1, }; mtk_dp->audio_pdev = platform_device_register_data(dev, diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 7687f673964ec7df0d76328a43ed76d71b192350..a4b144b3bda8362a6c6c303723c6d3eef9ca338e 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -1660,7 +1660,6 @@ static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = { .mute_stream = mtk_hdmi_audio_mute, .get_eld = mtk_hdmi_audio_get_eld, .hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb, - .no_capture_mute = 1, }; static int mtk_hdmi_register_audio_driver(struct device *dev) @@ -1671,6 +1670,7 @@ static int mtk_hdmi_register_audio_driver(struct device *dev) .max_i2s_channels = 2, .i2s = 1, .data = hdmi, + .no_capture_mute = 1, }; struct platform_device *pdev; diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c index f576b1aa86d1434d75b3770e08d91537aca4f5c4..5c2c124a7a38fbadaec554f08797020260e29045 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -885,7 +885,6 @@ static const struct hdmi_codec_ops audio_codec_ops = { .mute_stream = cdn_dp_audio_mute_stream, .get_eld = cdn_dp_audio_get_eld, .hook_plugged_cb = cdn_dp_audio_hook_plugged_cb, - .no_capture_mute = 1, }; static int cdn_dp_audio_codec_init(struct cdn_dp_device *dp, @@ -896,6 +895,7 @@ static int cdn_dp_audio_codec_init(struct cdn_dp_device *dp, .spdif = 1, .ops = &audio_codec_ops, .max_i2s_channels = 8, + .no_capture_mute = 1, }; dp->audio_pdev = platform_device_register_data( diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c index 3c8f3532c79723e7b1a720c855c90e40584cc6ca..6dbe3d0b7004e6d587bd868907d45e7f75c345d9 100644 --- a/drivers/gpu/drm/sti/sti_hdmi.c +++ b/drivers/gpu/drm/sti/sti_hdmi.c @@ -1237,7 +1237,6 @@ static const struct hdmi_codec_ops audio_codec_ops = { .audio_shutdown = hdmi_audio_shutdown, .mute_stream = hdmi_audio_mute, .get_eld = hdmi_audio_get_eld, - .no_capture_mute = 1, }; static int sti_hdmi_register_audio_driver(struct device *dev, @@ -1247,6 +1246,7 @@ static int sti_hdmi_register_audio_driver(struct device *dev, .ops = &audio_codec_ops, .max_i2s_channels = 8, .i2s = 1, + .no_capture_mute = 1, }; DRM_DEBUG_DRIVER("\n"); diff --git a/include/sound/hdmi-codec.h b/include/sound/hdmi-codec.h index b3407b47b4a7878532ecf3b08eeecd443d6fdb07..b220072cfa1baf503efbe2d530d7e8392dc16603 100644 --- a/include/sound/hdmi-codec.h +++ b/include/sound/hdmi-codec.h @@ -115,9 +115,6 @@ struct hdmi_codec_ops { int (*hook_plugged_cb)(struct device *dev, void *data, hdmi_codec_plugged_cb fn, struct device *codec_dev); - - /* bit field */ - unsigned int no_capture_mute:1; }; /* HDMI codec initalization data */ @@ -129,6 +126,7 @@ struct hdmi_codec_pdata { uint spdif:1; uint no_spdif_playback:1; uint no_spdif_capture:1; + uint no_capture_mute:1; int max_i2s_channels; void *data; }; diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c index abd7c9b0fda9ee6fa6c4efde1f583af667716611..e8aac8069587785bcd2bd09b5f9e0140304fb8fb 100644 --- a/sound/soc/codecs/hdmi-codec.c +++ b/sound/soc/codecs/hdmi-codec.c @@ -700,7 +700,7 @@ static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) */ if (hcp->hcd.ops->mute_stream && (direction == SNDRV_PCM_STREAM_PLAYBACK || - !hcp->hcd.ops->no_capture_mute)) + !hcp->hcd.no_capture_mute)) return hcp->hcd.ops->mute_stream(dai->dev->parent, hcp->hcd.data, mute, direction);