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

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[ Upstream commit f85739c0b2 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guiting Shen
2023-07-15 11:06:20 +08:00
committed by Greg Kroah-Hartman
parent c934d2a697
commit 23151421ed
1 changed files with 4 additions and 1 deletions
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5
sound/soc/atmel/atmel-i2s.c
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@@ -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 */