This is a note to let you know that I've just added the patch titled ASoC: qcom: sdm845: set driver name correctly to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-qcom-sdm845-set-driver-name-correctly.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit c9baadb941b6cea4d8dfc671ef6ca74913eb4d70 Author: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> Date: Fri Oct 23 10:58:49 2020 +0100 ASoC: qcom: sdm845: set driver name correctly [ Upstream commit 3f48b6eba15ea342ef4cb420b580f5ed6605669f ] With the current state of code, we would endup with something like below in /proc/asound/cards for 2 machines based on this driver. Machine 1: 0 [DB845c ]: DB845c - DB845c DB845c Machine 2: 0 [LenovoYOGAC6301]: Lenovo-YOGA-C63 - Lenovo-YOGA-C630-13Q50 LENOVO-81JL-LenovoYOGAC630_13Q50-LNVNB161216 This is not very UCM friendly both w.r.t to common up configs and card identification, and UCM2 became totally not usefull with just one ucm sdm845.conf for two machines which have different setups w.r.t HDMI and other dais. Reasons for such thing is partly because Qualcomm machine drivers never cared to set driver_name. This patch sets up driver name for the this driver to sort out the UCM integration issues! after this patch contents of /proc/asound/cards: Machine 1: 0 [DB845c ]: sdm845 - DB845c DB845c Machine 2: 0 [LenovoYOGAC6301]: sdm845 - Lenovo-YOGA-C630-13Q50 LENOVO-81JL-LenovoYOGAC630_13Q50-LNVNB161216 with this its possible to align with what UCM2 expects and we can have sdm845/DB845.conf sdm845/LENOVO-81JL-LenovoYOGAC630_13Q50-LNVNB161216.conf ... for board variants. This should scale much better! Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> Link: https://lore.kernel.org/r/20201023095849.22894-1-srinivas.kandagatla@xxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c index 7e6c41e63d8e1..23e1de61e92e4 100644 --- a/sound/soc/qcom/sdm845.c +++ b/sound/soc/qcom/sdm845.c @@ -16,6 +16,7 @@ #include "qdsp6/q6afe.h" #include "../codecs/rt5663.h" +#define DRIVER_NAME "sdm845" #define DEFAULT_SAMPLE_RATE_48K 48000 #define DEFAULT_MCLK_RATE 24576000 #define TDM_BCLK_RATE 6144000 @@ -407,6 +408,7 @@ static int sdm845_snd_platform_probe(struct platform_device *pdev) goto data_alloc_fail; } + card->driver_name = DRIVER_NAME; card->dapm_widgets = sdm845_snd_widgets; card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets); card->dev = dev;