The patch

ASoC: Intel: sof_pcm512x: make HDMI optional for all platforms

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 15a5a89597e57e67d4dde1d57fa85105c5930bb3 Mon Sep 17 00:00:00 2001

From: Kai Vehmanen kai.vehmanen@linux.intel.com Date: Thu, 12 Mar 2020 14:48:52 -0500 Subject: [PATCH] ASoC: Intel: sof_pcm512x: make HDMI optional for all platforms

Make HDMI optional for APL and later platforms. If no HDMI codec is found on the HDA bus, the graphics side driver is missing or correct codec driver is not part of kernel build, codec_mask reflects this and HDMI is disabled. The DSP topology will still have the links for HDMI, so connect these to dummy codec to avoid failures in topology loading.

This change also fixes a kernel oops that was triggered if sof_pcm512x was used with SOF configured to use hdac-hdmi (can be done via "use_common_hdmi=0" or by selecting CONFIG_SND_SOC_SOF_HDA_COMMON_HDMI_CODEC=n). This is not a supported configuration.

Signed-off-by: Kai Vehmanen kai.vehmanen@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20200312194859.4051-4-pierre-louis.bossart@linux.i... Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/boards/sof_pcm512x.c | 38 +++++++++++++++++++++------- 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/sound/soc/intel/boards/sof_pcm512x.c b/sound/soc/intel/boards/sof_pcm512x.c index 626153bd71e7..4ce707b6eb79 100644 --- a/sound/soc/intel/boards/sof_pcm512x.c +++ b/sound/soc/intel/boards/sof_pcm512x.c @@ -27,6 +27,8 @@ #define SOF_PCM512X_SSP_CODEC(quirk) ((quirk) & GENMASK(3, 0)) #define SOF_PCM512X_SSP_CODEC_MASK (GENMASK(3, 0))

+#define IDISP_CODEC_MASK 0x4 + /* Default: SSP5 */ static unsigned long sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(5);

@@ -40,6 +42,7 @@ struct sof_hdmi_pcm {

struct sof_card_private { struct list_head hdmi_pcm_list; + bool idisp_codec; };

static int sof_pcm512x_quirk_cb(const struct dmi_system_id *id) @@ -136,6 +139,9 @@ static int sof_card_late_probe(struct snd_soc_card *card) if (list_empty(&ctx->hdmi_pcm_list)) return -EINVAL;

+ if (!ctx->idisp_codec) + return 0; + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head);

return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component); @@ -214,7 +220,8 @@ SND_SOC_DAILINK_DEF(dmic_component, static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev, int ssp_codec, int dmic_be_num, - int hdmi_num) + int hdmi_num, + bool idisp_codec) { struct snd_soc_dai_link_component *idisp_components; struct snd_soc_dai_link_component *cpus; @@ -316,11 +323,19 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev, if (!links[id].cpus->dai_name) goto devm_err;

- idisp_components[i - 1].name = "ehdaudio0D2"; - idisp_components[i - 1].dai_name = devm_kasprintf(dev, - GFP_KERNEL, - "intel-hdmi-hifi%d", - i); + /* + * topology cannot be loaded if codec is missing, so + * use the dummy codec if needed + */ + if (idisp_codec) { + idisp_components[i - 1].name = "ehdaudio0D2"; + idisp_components[i - 1].dai_name = + devm_kasprintf(dev, GFP_KERNEL, + "intel-hdmi-hifi%d", i); + } else { + idisp_components[i - 1].name = "snd-soc-dummy"; + idisp_components[i - 1].dai_name = "snd-soc-dummy-dai"; + } if (!idisp_components[i - 1].dai_name) goto devm_err;

@@ -341,8 +356,8 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,

static int sof_audio_probe(struct platform_device *pdev) { + struct snd_soc_acpi_mach *mach = pdev->dev.platform_data; struct snd_soc_dai_link *dai_links; - struct snd_soc_acpi_mach *mach; struct sof_card_private *ctx; int dmic_be_num, hdmi_num; int ret, ssp_codec; @@ -360,6 +375,11 @@ static int sof_audio_probe(struct platform_device *pdev) } else { dmic_be_num = 2; #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) + if (mach->mach_params.common_hdmi_codec_drv && + (mach->mach_params.codec_mask & IDISP_CODEC_MASK)) + ctx->idisp_codec = true; + + /* links are always present in topology */ hdmi_num = 3; #endif } @@ -374,7 +394,8 @@ static int sof_audio_probe(struct platform_device *pdev) sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num;

dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, - dmic_be_num, hdmi_num); + dmic_be_num, hdmi_num, + ctx->idisp_codec); if (!dai_links) return -ENOMEM;

@@ -383,7 +404,6 @@ static int sof_audio_probe(struct platform_device *pdev) INIT_LIST_HEAD(&ctx->hdmi_pcm_list);

sof_audio_card_pcm512x.dev = &pdev->dev; - mach = (&pdev->dev)->platform_data;

/* set platform name for each dailink */ ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x,