Hi Sasha,
On 2/14/20 9:46 AM, Sasha Levin wrote:
From: Cezary Rojewski cezary.rojewski@intel.com
[ Upstream commit a6947c9d86bcfd61b758b5693eba58defe7fd2ae ]
With fourth pin added for iDisp for skl_dai, update SOF_SKL_DAI_NUM to account for the change. Without this, dais from the bottom of the list are skipped. In current state that's the case for 'Alt Analog CPU DAI'.
Fixes: ac42b142cd76 ("ASoC: SOF: Intel: hda: Add iDisp4 DAI")
This patch generates a kernel oops with v5.5.6 - mainly because the initial commit ac42b142cd76 is missing, which ends-up creating an empty entry in the skl_dai[] array.
This was just reported to us, see logs at https://github.com/thesofproject/sof/issues/2418
the same problem is likely to happen with 5.4-stable [PATCH AUTOSEL 5.4 349/459] ASoC: SOF: Intel: hda: Fix SKL dai count
Since the initial commit to be fixed was not included, the -stable branches should probably revert this patch? Adding ac42b142cd76 should also not generate any problems, I tested it on top of v5.5.6
The 'right' fix should be to use ARRAY_SIZE instead of hard-coded defines, but there are multiple dependencies so we'd probably need to refactor the code to so so.
Let me know if you want more details or additional help, -Pierre
Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20200113114054.9716-1-cezary.rojewski@intel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org
sound/soc/sof/intel/hda.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 63df888dddb6c..de0115294c74e 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -348,7 +348,7 @@ /* Number of DAIs */ #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) -#define SOF_SKL_NUM_DAIS 14 +#define SOF_SKL_NUM_DAIS 15 #else #define SOF_SKL_NUM_DAIS 8 #endif