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authorGuiting Shen <aarongt.shen@gmail.com>2023-07-15 11:06:20 +0800
committerMark Brown <broonie@kernel.org>2023-07-25 12:10:00 +0100
commitf85739c0b2b0d98a32f5ca4fcc5501d2b76df4f6 (patch)
treee27eff67f24fb4af9be81207923a8100bc9acd7e /sound
parent23adeb7056acd4fd866969f4afb91441776cc4f5 (diff)
ASoC: atmel: Fix the 8K sample parameter in I2SC master
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/atmel/atmel-i2s.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
index 49930baf5e4d..69a88dc65165 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 */