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soc: soundwire: use clock stop instead of clock pause

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If soundwire slave supports clock stop mode, use the
clock stop mode instead of clock pause to avoid bus clash
interrupts.

Change-Id: I6eb0c76ffc0785c40d086f18ca16769a463f2e89
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
This commit is contained in:
Sudheer Papothi 2020-01-30 05:22:47 +05:30 • committed by Gerrit - the friendly Code Review server
parent 39e62ec486
commit 1f2565b4f8
1 changed files with 17 additions and 1 deletions
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18
soc/swr-mstr-ctrl.c
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@ -2988,7 +2988,23 @@ static int swrm_runtime_suspend(struct device *dev)
mutex_unlock(&swrm->reslock);
enable_bank_switch(swrm, 0, SWR_ROW_50, SWR_MIN_COL);
mutex_lock(&swrm->reslock);
swrm_clk_pause(swrm);
if (!swrm->clk_stop_mode0_supp) {
swrm_clk_pause(swrm);
} else {
/* Mask bus clash interrupt */
swrm->intr_mask &= ~((u32)0x08);
swr_master_write(swrm,
SWRM_INTERRUPT_MASK_ADDR,
swrm->intr_mask);
swr_master_write(swrm,
SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN,
swrm->intr_mask);
mutex_unlock(&swrm->reslock);
/* clock stop sequence */
swrm_cmd_fifo_wr_cmd(swrm, 0x2, 0xF, 0xF,
SWRS_SCP_CONTROL);
mutex_lock(&swrm->reslock);
}
swr_master_write(swrm, SWRM_COMP_CFG_ADDR, 0x00);
list_for_each_entry(swr_dev, &mstr->devices, dev_list) {
ret = swr_device_down(swr_dev);