From fc15d230511865cc1e53e805dd1517540e10d34e Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Wed, 30 Jan 2008 08:38:30 +0100 Subject: [PATCH] [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 Signed-off-by: Jaroslav Kysela --- sound/pci/oxygen/hifier.c | 2 +- sound/pci/oxygen/oxygen.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c index 51c4d1ae9d023..3ea1f05228a18 100644 --- 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 index 840e4a66eacdf..f31a0eb409b08 100644 --- 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); -- 2.39.5