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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>
This commit is contained in:
Peter Ujfalusi 2019-06-20 12:20:01 +03:00 committed by Mark Brown
parent 9e0784d00e
commit 5dd17a3c3e
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 8 additions and 6 deletions
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14
sound/soc/ti/davinci-mcasp.c
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@ -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)