msm: camera: isp: Remove redundant CSID global SW reset

When the camera subsystem is powered on (titan_top), async reset
is issued thereby ensuring clean state for all CSIDs. At the
start of the use-case, issuing a sync global SW reset is
redundant, and can be avoided. At the end of the use-case, issue
a SW sync global reset thereby ensuring all SWI registers are
wiped out for the CSID and all connected cores. The sync global
reset also ensures the rx decoder is also reset.

CRs-Fixed: 3545161
Change-Id: I0f5e25bad8508f72b2a0395df4dafc368f71243c
Signed-off-by: Karthik Anantha Ram <[email protected]>

drivers/cam_isp/isp_hw_mgr/cam_ife_hw_mgr.c

@@ -1227,7 +1227,6 @@ static int cam_ife_hw_mgr_init_hw(
 	struct cam_ife_hw_mgr_ctx *ctx)
 {
 	struct cam_isp_hw_mgr_res *hw_mgr_res;
-	struct cam_ife_hw_mgr          *hw_mgr;
 	int rc = 0, i;
 
 	/* INIT IFE SRC */
@@ -1307,17 +1306,6 @@ static int cam_ife_hw_mgr_init_hw(
 		}
 	}
 
-	hw_mgr = ctx->hw_mgr;
-
-	if (hw_mgr->csid_global_reset_en) {
-		rc = cam_ife_hw_mgr_reset_csid(ctx,
-			CAM_IFE_CSID_RESET_GLOBAL);
-		if (rc) {
-			CAM_ERR(CAM_ISP, "CSID reset failed, ctx_idx:%u", ctx->ctx_index);
-			goto deinit;
-		}
-	}
-
 	/* Check if any cache needs to be activated */
 	for (i = CAM_LLCC_SMALL_1; i < CAM_LLCC_MAX; i++) {
 		if (ctx->flags.sys_cache_usage[i]) {