[ALSA] oxygen: revert SPI clock frequency change for AK4396/WM8785

While the AK4396 and WM8785 datasheets say that the SPI clock cycle length must be at least 200 ns, 320 ns seems not to work reliably with the controller, so we better use 160 ns. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
git-mirror · Jan 31, 2008 · 2ea8598 · 2ea8598
1 parent 19e2e3c
commit 2ea8598
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c
@@ -56,7 +56,7 @@ static void ak4396_write(struct oxygen *chip, u8 reg, u8 value)
 {
 	oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER  |
 			 OXYGEN_SPI_DATA_LENGTH_2 |
-			 OXYGEN_SPI_CLOCK_320 |
+			 OXYGEN_SPI_CLOCK_160 |
 			 (0 << OXYGEN_SPI_CODEC_SHIFT) |
 			 OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
 			 AK4396_WRITE | (reg << 8) | value);

diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
@@ -129,7 +129,7 @@ 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_320 |
+			 OXYGEN_SPI_CLOCK_160 |
 			 (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
 			 OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
 			 AK4396_WRITE | (reg << 8) | value);
@@ -139,7 +139,7 @@ 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_320 |
+			 OXYGEN_SPI_CLOCK_160 |
 			 (3 << OXYGEN_SPI_CODEC_SHIFT) |
 			 OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
 			 (reg << 9) | value);