[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>

2 files changed, 3 insertions, 3 deletions

diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index 0a7c6135c072..35b26014925f 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 ebafc65dc345..d0cdce041dd8 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) {