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authorClemens Ladisch <clemens@ladisch.de>2008-01-21 08:51:19 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:30:07 +0100
commit3b94253bc9c950d2038a2db4f9c804b50f82001a (patch)
tree31ed15b2e228ccc1a64b1ca9279a495aaebd0251 /sound/pci/oxygen
parent71e22a4b77fb36ce3205122454f5500843bed3ea (diff)
[ALSA] oxygen: reduce SPI clock frequency for AK4396/WM8785
According to the datasheets, the SPI clock cycle must be at least 200 ns for the AK4396 and the WM8785, so we cannot use the default 160 ns. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci/oxygen')
-rw-r--r--sound/pci/oxygen/oxygen.c4
-rw-r--r--sound/pci/oxygen/oxygen_io.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index 0a7c6135c07..35b26014925 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -166,7 +166,7 @@ static void ak4396_write(struct oxygen *chip, unsigned int codec,
};
oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
OXYGEN_SPI_DATA_LENGTH_2 |
- OXYGEN_SPI_CLOCK_160 |
+ OXYGEN_SPI_CLOCK_320 |
(codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
AK4396_WRITE | (reg << 8) | value);
@@ -176,7 +176,7 @@ static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value)
{
oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
OXYGEN_SPI_DATA_LENGTH_2 |
- OXYGEN_SPI_CLOCK_160 |
+ OXYGEN_SPI_CLOCK_320 |
(3 << OXYGEN_SPI_CODEC_SHIFT) |
OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
(reg << 9) | value);
diff --git a/sound/pci/oxygen/oxygen_io.c b/sound/pci/oxygen/oxygen_io.c
index ebafc65dc34..d0cdce041dd 100644
--- a/sound/pci/oxygen/oxygen_io.c
+++ b/sound/pci/oxygen/oxygen_io.c
@@ -174,7 +174,7 @@ void oxygen_write_spi(struct oxygen *chip, u8 control, unsigned int data)
{
unsigned int count;
- /* should not need more than 3.84 us (24 * 160 ns) */
+ /* should not need more than 7.68 us (24 * 320 ns) */
count = 10;
while ((oxygen_read8(chip, OXYGEN_SPI_CONTROL) & OXYGEN_SPI_BUSY)
&& count > 0) {