diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2019-06-20 12:20:01 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-06-20 14:59:17 +0300 |
| commit | 5dd17a3c3ed545f73b8bf7754efd5f6125bf7531 (patch) | |
| tree | 8b121ecb65bdf035d76461965ffc7fd7f28aa35d /sound/soc/ti | |
| parent | 9e0784d00e35e058353e2e7e59dd956be7519788 (diff) | |
| download | linux-5dd17a3c3ed545f73b8bf7754efd5f6125bf7531.tar.xz | |
ASoC: ti: davinci-mcasp: Set unused serializers as INACTIVE
Unused serializers needs to be configured as INACTIVE, otherwise they will
underflow/overflow when multiple serializers are connected, but some are
not needed for the given stream.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/ti')
| -rw-r--r-- | sound/soc/ti/davinci-mcasp.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c index a8378d223a9e..8bec0dc4f754 100644 --- a/sound/soc/ti/davinci-mcasp.c +++ b/sound/soc/ti/davinci-mcasp.c @@ -848,14 +848,15 @@ static int mcasp_common_hw_param(struct davinci_mcasp *mcasp, int stream, rx_ser < max_active_serializers) { clear_bit(PIN_BIT_AXR(i), &mcasp->pdir); rx_ser++; - } else if (mcasp->serial_dir[i] == INACTIVE_MODE) { + } else { + /* Inactive or unused pin, set it to inactive */ mcasp_mod_bits(mcasp, DAVINCI_MCASP_XRSRCTL_REG(i), SRMOD_INACTIVE, SRMOD_MASK); - clear_bit(PIN_BIT_AXR(i), &mcasp->pdir); - } else if (mcasp->serial_dir[i] == TX_MODE) { - /* Unused TX pins, clear PDIR */ - mcasp_mod_bits(mcasp, DAVINCI_MCASP_XRSRCTL_REG(i), - mcasp->dismod, DISMOD_MASK); + /* If unused, set DISMOD for the pin */ + if (mcasp->serial_dir[i] != INACTIVE_MODE) + mcasp_mod_bits(mcasp, + DAVINCI_MCASP_XRSRCTL_REG(i), + mcasp->dismod, DISMOD_MASK); clear_bit(PIN_BIT_AXR(i), &mcasp->pdir); } } @@ -965,6 +966,7 @@ static int mcasp_i2s_hw_param(struct davinci_mcasp *mcasp, int stream, for (i = 0; i < active_slots; i++) mask |= (1 << i); } + mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, TX_ASYNC); if (!mcasp->dat_port) |