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Commit 0a11a031 authored by Karthik Anantha Ram's avatar Karthik Anantha Ram Committed by Gerrit - the friendly Code Review server
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msm: camera: icp: Use usleep instead of msleep for smaller delays 



usleep is more precise for smaller sleep times compared to msleep,
hence using it to ensure reduced latency while disabling A5.

Change-Id: I92eeff65caaa3b0739e2df7ca7ec12eecea9638d
Signed-off-by: default avatarKarthik Anantha Ram <kartanan@codeaurora.org>
parent e3e5e5cb

drivers/media/platform/msm/camera/cam_icp/hfi.c

+3 −2
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ 
#define HFI_MAX_POLL_TRY 5



#define HFI_MAX_PC_POLL_TRY 150

#define HFI_POLL_TRY_SLEEP 2

#define HFI_POLL_TRY_SLEEP 1



static struct hfi_info *g_hfi;

unsigned int g_icp_mmu_hdl;
@@ -559,7 +559,8 @@ void cam_hfi_disable_cpu(void __iomem *icp_base) 
		 * and Host can the proceed. No interrupt is expected from FW

		 * at this time.

		 */

		msleep_interruptible(HFI_POLL_TRY_SLEEP);

		usleep_range(HFI_POLL_TRY_SLEEP * 1000,

			(HFI_POLL_TRY_SLEEP * 1000) + 1000);

		try++;

	}