Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-01 10:43:43 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ASoC: atmel: Fix the 8K sample parameter in I2SC master

Browse Source 
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@gmail.com>
Link: https://lore.kernel.org/r/20230715030620.62328-1-aarongt.shen@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Guiting Shen 2023-07-15 11:06:20 +08:00 committed by Mark Brown
parent 23adeb7056
commit f85739c0b2
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sound/soc/atmel/atmel-i2s.c
View File

@ -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 */