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Commit 4b6d3e44 authored by Rajeev Kulkarni's avatar Rajeev Kulkarni
Browse files

msm: camera: isp: Provision to read svs freq for VFE 



This change gives way to read svs freq for certain targets
for which VFE's have svs freq defined.

Change-Id: I749327861e4392c6f3f24235c1e9b47b684f1362
Signed-off-by: default avatarRajeev Kulkarni <krajeev@codeaurora.org>
parent 45f1dede

Documentation/devicetree/bindings/media/video/msm-vfe.txt

+4 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ Required properties for child node: 
  different SoC can have same hardware version and still different QOS, VBIF,

  and DS parameters. In this case they are exported if separate SoC version

  specific dts files.

- max-svs-clk: svs rate of the VFE clock in Hertz.

- max-nominal-clk: nominal rate of the VFE clock in Hertz.

- max-turbo-clk: turbo/high rate of the VFE clock in Hertz.
@@ -100,6 +101,7 @@ qcom,vfe { 
			0x44441111 0x44441111 0x44441111

			0x44441111 0x44441111 0x44441111

			0x44441111 0x00000103>;

		max-clk-svs = <300000000>;

		max-clk-nominal = <465000000>;

		max-clk-turbo = <600000000>;

	};
@@ -152,6 +154,7 @@ qcom,vfe { 
			0x44441111 0x44441111 0x44441111

			0x44441111 0x44441111 0x44441111

			0x44441111 0x00000103>;

		max-clk-svs = <300000000>;

		max-clk-nominal = <465000000>;

		max-clk-turbo = <600000000>;

	};
@@ -196,6 +199,7 @@ SoC versions with same VFE HW version: 
			0x44441111

			0x44441111

			0x00000103>;

		max-clk-svs = <300000000>;

		max-clk-nominal = <465000000>;

		max-clk-turbo = <600000000>;

	};

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

+13 −1
Original line number Diff line number Diff line
@@ -494,7 +494,7 @@ static int msm_isp_get_clk_rates(struct vfe_device *vfe_dev, 
{

	struct device_node *of_node;

	int32_t  rc = 0;

	uint32_t nominal = 0, turbo = 0;

	uint32_t svs = 0, nominal = 0, turbo = 0;

	if (!vfe_dev || !rates) {

		pr_err("%s:%d failed: vfe_dev %p rates %p\n", __func__,

			__LINE__, vfe_dev, rates);
@@ -514,6 +514,16 @@ static int msm_isp_get_clk_rates(struct vfe_device *vfe_dev, 
		 __LINE__, of_node);

		return -EINVAL;

	}



	/*

	 * Many older targets dont define svs.

	 * return svs=0 for older targets.

	 */

	rc = of_property_read_u32(of_node, "max-clk-svs",

		&svs);

	if (rc < 0)

		svs = 0;



	rc = of_property_read_u32(of_node, "max-clk-nominal",

		&nominal);

	if (rc < 0 || !nominal) {
@@ -527,6 +537,7 @@ static int msm_isp_get_clk_rates(struct vfe_device *vfe_dev, 
		pr_err("%s: turbo rate error\n", __func__);

			return -EINVAL;

	}

	rates->svs_rate = svs;

	rates->nominal_rate = nominal;

	rates->high_rate = turbo;

	return 0;
@@ -1424,6 +1435,7 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev, 
			pr_err("%s:%d failed: rc %d\n", __func__, __LINE__, rc);

			return -EINVAL;

		}

		user_data->svs_rate = rates.svs_rate;

		user_data->nominal_rate = rates.nominal_rate;

		user_data->high_rate = rates.high_rate;

		break;

include/media/msmb_isp.h

+1 −0
Original line number Diff line number Diff line
@@ -517,6 +517,7 @@ struct msm_isp_qbuf_info { 
};



struct msm_isp_clk_rates {

	uint32_t svs_rate;

	uint32_t nominal_rate;

	uint32_t high_rate;

};