From 2ea85986dd1fa96ccf0a2f37877d58a57ff6f583 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Wed, 30 Jan 2008 08:38:30 +0100 Subject: [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 diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c index 51c4d1a..3ea1f05 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 840e4a6..f31a0eb 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); -- cgit v0.10.2