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Commit 1f2565b4 authored by Sudheer Papothi's avatar Sudheer Papothi Committed by Gerrit - the friendly Code Review server
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soc: soundwire: use clock stop instead of clock pause 



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: default avatarSudheer Papothi <spapothi@codeaurora.org>
parent 39e62ec4

soc/swr-mstr-ctrl.c

+17 −1
Original line number Diff line number Diff line
@@ -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);

			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);