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Commit 5d52dd86 authored by Karthikeyan Mani's avatar Karthikeyan Mani Committed by Gerrit - the friendly Code Review server
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soc: swr-mstr: Reduce swr register write sleep timings 



Reduce swr bulk write and swr command fifo write sleeps
to reach coldstart latency numbers.

Change-Id: I52f2868a488e167b0a0f617b6af3e79cbf6f7eea
Signed-off-by: default avatarKarthikeyan Mani <kmani@codeaurora.org>
parent 1fc4ce67

soc/swr-mstr-ctrl.c

+6 −2
Original line number Diff line number Diff line
@@ -397,7 +397,11 @@ static int swr_master_bulk_write(struct swr_mstr_ctrl *swrm, u32 *reg_addr, 
		mutex_lock(&swrm->iolock);

		for (i = 0; i < length; i++) {

		/* wait for FIFO WR command to complete to avoid overflow */

			usleep_range(100, 105);

		/*

		 * Reduce sleep from 100us to 10us to meet KPIs

		 * This still meets the hardware spec

		 */

			usleep_range(10, 12);

			swr_master_write(swrm, reg_addr[i], val[i]);

		}

		mutex_unlock(&swrm->iolock);
@@ -559,7 +563,7 @@ static int swrm_cmd_fifo_wr_cmd(struct swr_mstr_ctrl *swrm, u8 cmd_data, 
	 * skip delay if write is handled in platform driver.

	 */

	if(!swrm->write)

		usleep_range(250, 255);

		usleep_range(150, 155);

	if (cmd_id == 0xF) {

		/*

		 * sleep for 10ms for MSM soundwire variant to allow broadcast