diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2011-01-10 16:01:17 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-01-10 16:46:00 +0100 |
| commit | 5ea310ff8d651246cf001ebc894d2f294123328a (patch) | |
| tree | d4ca002f416478c6dda477a59c9fbb94fe3059a0 /sound/pci | |
| parent | d2119c05e9aee7e44055220726bb8814a2e242c3 (diff) | |
| download | talos-obmc-linux-5ea310ff8d651246cf001ebc894d2f294123328a.tar.gz talos-obmc-linux-5ea310ff8d651246cf001ebc894d2f294123328a.zip | |
ALSA: oxygen: fix SPI clocks slower than 6.25 MHz
Fix wrong register bits for SPI clock cycle times longer than 160 ns,
and adjust the polling loop timeout for these speeds.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/oxygen/oxygen_io.c | 4 | ||||
| -rw-r--r-- | sound/pci/oxygen/oxygen_regs.h | 8 |
2 files changed, 6 insertions, 6 deletions
diff --git a/sound/pci/oxygen/oxygen_io.c b/sound/pci/oxygen/oxygen_io.c index 09b2b2a36df5..f5164b1e1c80 100644 --- a/sound/pci/oxygen/oxygen_io.c +++ b/sound/pci/oxygen/oxygen_io.c @@ -197,11 +197,11 @@ void oxygen_write_spi(struct oxygen *chip, u8 control, unsigned int data) { unsigned int count; - /* should not need more than 7.68 us (24 * 320 ns) */ + /* should not need more than 30.72 us (24 * 1.28 us) */ count = 10; while ((oxygen_read8(chip, OXYGEN_SPI_CONTROL) & OXYGEN_SPI_BUSY) && count > 0) { - udelay(1); + udelay(4); --count; } diff --git a/sound/pci/oxygen/oxygen_regs.h b/sound/pci/oxygen/oxygen_regs.h index 4dcd41b78258..331d3d96fa21 100644 --- a/sound/pci/oxygen/oxygen_regs.h +++ b/sound/pci/oxygen/oxygen_regs.h @@ -238,11 +238,11 @@ #define OXYGEN_SPI_DATA_LENGTH_MASK 0x02 #define OXYGEN_SPI_DATA_LENGTH_2 0x00 #define OXYGEN_SPI_DATA_LENGTH_3 0x02 -#define OXYGEN_SPI_CLOCK_MASK 0xc0 +#define OXYGEN_SPI_CLOCK_MASK 0x0c #define OXYGEN_SPI_CLOCK_160 0x00 /* ns */ -#define OXYGEN_SPI_CLOCK_320 0x40 -#define OXYGEN_SPI_CLOCK_640 0x80 -#define OXYGEN_SPI_CLOCK_1280 0xc0 +#define OXYGEN_SPI_CLOCK_320 0x04 +#define OXYGEN_SPI_CLOCK_640 0x08 +#define OXYGEN_SPI_CLOCK_1280 0x0c #define OXYGEN_SPI_CODEC_MASK 0x70 /* 0..5 */ #define OXYGEN_SPI_CODEC_SHIFT 4 #define OXYGEN_SPI_CEN_MASK 0x80 |
