Merge "msm: camera: isp: add support for CX iPeak limits management"

drivers/media/platform/msm/camera_v2/isp/msm_isp.c

@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -588,6 +588,12 @@ int vfe_hw_probe(struct platform_device *pdev)
 		}
 		vfe_dev->hw_info =
 			(struct msm_vfe_hardware_info *) match_dev->data;
+		/* Cx ipeak support */
+		if (of_find_property(pdev->dev.of_node,
+			"qcom,vfe_cx_ipeak", NULL)) {
+			vfe_dev->vfe_cx_ipeak = cx_ipeak_register(
+				pdev->dev.of_node, "qcom,vfe_cx_ipeak");
+		}
 	} else {
 		vfe_dev->hw_info = (struct msm_vfe_hardware_info *)
 			platform_get_device_id(pdev)->driver_data;

drivers/media/platform/msm/camera_v2/isp/msm_isp.h

@@ -29,6 +29,7 @@
 
 #include "msm_buf_mgr.h"
 #include "cam_hw_ops.h"
+#include <soc/qcom/cx_ipeak.h>
 
 #define VFE40_8974V1_VERSION 0x10000018
 #define VFE40_8974V2_VERSION 0x1001001A
@@ -767,6 +768,8 @@ struct vfe_device {
 	size_t num_hvx_clk;
 	size_t num_norm_clk;
 	enum cam_ahb_clk_vote ahb_vote;
+	bool turbo_vote;
+	struct cx_ipeak_client *vfe_cx_ipeak;
 
 	/* Sync variables*/
 	struct completion reset_complete;

drivers/media/platform/msm/camera_v2/isp/msm_isp47.c

@@ -331,6 +331,7 @@ int msm_vfe47_init_hardware(struct vfe_device *vfe_dev)
 		goto ahb_vote_fail;
 	}
 	vfe_dev->ahb_vote = CAM_AHB_SVS_VOTE;
+	vfe_dev->turbo_vote = 0;
 
 	vfe_dev->common_data->dual_vfe_res->vfe_base[vfe_dev->pdev->id] =
 		vfe_dev->vfe_base;
@@ -2556,6 +2557,7 @@ int msm_vfe47_set_clk_rate(struct vfe_device *vfe_dev, long *rate)
 {
 	int rc = 0;
 	int clk_idx = vfe_dev->hw_info->vfe_clk_idx;
+	int ret;
 
 	rc = msm_camera_clk_set_rate(&vfe_dev->pdev->dev,
 				vfe_dev->vfe_clk[clk_idx], *rate);
@@ -2563,7 +2565,26 @@ int msm_vfe47_set_clk_rate(struct vfe_device *vfe_dev, long *rate)
 		return rc;
 	*rate = clk_round_rate(vfe_dev->vfe_clk[clk_idx], *rate);
 	vfe_dev->msm_isp_vfe_clk_rate = *rate;
-
+	if (vfe_dev->vfe_cx_ipeak) {
+		if (vfe_dev->msm_isp_vfe_clk_rate >=
+			vfe_dev->vfe_clk_rates[MSM_VFE_CLK_RATE_TURBO]
+			[vfe_dev->hw_info->vfe_clk_idx] &&
+			vfe_dev->turbo_vote == 0) {
+			ret = cx_ipeak_update(vfe_dev->vfe_cx_ipeak, true);
+			if (ret)
+				pr_debug("%s: cx_ipeak_update failed %d\n",
+					__func__, ret);
+			else
+				vfe_dev->turbo_vote = 1;
+		} else if (vfe_dev->turbo_vote == 1) {
+			ret = cx_ipeak_update(vfe_dev->vfe_cx_ipeak, false);
+			if (ret)
+				pr_debug("%s: cx_ipeak_update failed %d\n",
+					__func__, ret);
+			else
+				vfe_dev->turbo_vote = 0;
+		}
+	}
 	if (vfe_dev->hw_info->vfe_ops.core_ops.ahb_clk_cfg)
 		vfe_dev->hw_info->vfe_ops.core_ops.ahb_clk_cfg(vfe_dev, NULL);
 	return 0;