This is a note to let you know that I've just added the patch titled
ASoC: atmel: Fix the 8K sample parameter in I2SC master
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-atmel-fix-the-8k-sample-parameter-in-i2sc-maste.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 854785af33c8a97f0c57be7a14f57c4094007422
Author: Guiting Shen <aarongt.shen@xxxxxxxxx>
Date: Sat Jul 15 11:06:20 2023 +0800
ASoC: atmel: Fix the 8K sample parameter in I2SC master
[ Upstream commit f85739c0b2b0d98a32f5ca4fcc5501d2b76df4f6 ]
The 8K sample parameter of 12.288Mhz main system bus clock doesn't work
because the I2SC_MR.IMCKDIV must not be 0 according to the sama5d2
series datasheet(I2SC Mode Register of Register Summary).
So use the 6.144Mhz instead of 12.288Mhz to support 8K sample.
Signed-off-by: Guiting Shen <aarongt.shen@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230715030620.62328-1-aarongt.shen@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index d870f56c44cfc..0341b31197670 100644
--- a/sound/soc/atmel/atmel-i2s.c
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -163,11 +163,14 @@ struct atmel_i2s_gck_param {
#define I2S_MCK_12M288 12288000UL
#define I2S_MCK_11M2896 11289600UL
+#define I2S_MCK_6M144 6144000UL
/* mck = (32 * (imckfs+1) / (imckdiv+1)) * fs */
static const struct atmel_i2s_gck_param gck_params[] = {
+ /* mck = 6.144Mhz */
+ { 8000, I2S_MCK_6M144, 1, 47}, /* mck = 768 fs */
+
/* mck = 12.288MHz */
- { 8000, I2S_MCK_12M288, 0, 47}, /* mck = 1536 fs */
{ 16000, I2S_MCK_12M288, 1, 47}, /* mck = 768 fs */
{ 24000, I2S_MCK_12M288, 3, 63}, /* mck = 512 fs */
{ 32000, I2S_MCK_12M288, 3, 47}, /* mck = 384 fs */
