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Commit 81808188 authored by Abhishek Kondaveeti's avatar Abhishek Kondaveeti Committed by Gerrit - the friendly Code Review server
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msm: isp: Add support for VFE resolution limit 



Read VFE resolution limitation from VFE fuse register
and restrict sensor output accordingly.

Change-Id: I735016e8fa2f2cb54754301f1c0c66757d8579c5
Signed-off-by: default avatarAbhishek Kondaveeti <akondave@codeaurora.org>
parent a1c3a94c

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

+9 −6
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ Required properties for child node: 
    Only needed for child node.

    - "vfe" - Required.

    - "vfe_vbif" - Optional for "vfe32". Required for "vfe40".

    - "vfe_fuse" - Optional.

- interrupts : should contain the vfe interrupt.

- interrupt-names : should specify relevant names to each interrupts

  property defined.
@@ -52,9 +53,10 @@ Example: 
vfe0: qcom,vfe0@fda10000 {

	cell-index = <0>;

	compatible = "qcom,vfe44";

	reg = <0xfda10000 0x1000>;

		<0xfda40000 0x200>;

	reg-names = "vfe", "vfe_vbif";

	reg = <0xfda10000 0x1000>,

		<0xfda40000 0x200>,

		<0xa4174 0x8>;

	reg-names = "vfe", "vfe_vbif", "vfe_fuse";

	interrupts = <0 57 0>;

	interrupt-names = "vfe";

	vdd-supply = <&gdsc_vfe>;
@@ -105,9 +107,10 @@ vfe0: qcom,vfe0@fda10000 { 
vfe1: qcom,vfe1@fda14000 {

	cell-index = <1>;

	compatible = "qcom,vfe44";

	reg = <0xfda14000 0x1000>;

		<0xfda40000 0x200>;

	reg-names = "vfe", "vfe_vbif";

	reg = <0xfda14000 0x1000>,

		<0xfda40000 0x200>,

		<0xa4174 0x8>;

	reg-names = "vfe", "vfe_vbif", "vfe_fuse";

	interrupts = <0 58 0>;

	interrupt-names = "vfe";

	vdd-supply = <&gdsc_vfe>;

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

+1 −0
Original line number Diff line number Diff line
@@ -762,6 +762,7 @@ struct vfe_device { 
	uint32_t is_split;

	uint32_t dual_vfe_enable;

	unsigned long page_fault_addr;

	uint32_t vfe_hw_limit;



	/* Debug variables */

	int dump_reg;

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

+15 −2
Original line number Diff line number Diff line 
/* 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
@@ -2597,6 +2597,8 @@ int msm_vfe47_enable_regulators(struct vfe_device *vfe_dev, int enable) 
int msm_vfe47_get_platform_data(struct vfe_device *vfe_dev)

{

	int rc = 0;

	void __iomem *vfe_fuse_base;

	uint32_t vfe_fuse_base_size;



	vfe_dev->vfe_base = msm_camera_get_reg_base(vfe_dev->pdev, "vfe", 0);

	if (!vfe_dev->vfe_base)
@@ -2621,7 +2623,18 @@ int msm_vfe47_get_platform_data(struct vfe_device *vfe_dev) 
		rc = -ENOMEM;

		goto get_res_fail;

	}



	vfe_dev->vfe_hw_limit = 0;

	vfe_fuse_base = msm_camera_get_reg_base(vfe_dev->pdev,

					"vfe_fuse", 0);

	vfe_fuse_base_size = msm_camera_get_res_size(vfe_dev->pdev,

						"vfe_fuse");

	if (vfe_fuse_base) {

		if (vfe_fuse_base_size)

			vfe_dev->vfe_hw_limit =

				(msm_camera_io_r(vfe_fuse_base) >> 7) & 0x3;

		msm_camera_put_reg_base(vfe_dev->pdev, vfe_fuse_base,

				"vfe_fuse", 0);

	}

	rc = vfe_dev->hw_info->vfe_ops.platform_ops.get_regulators(vfe_dev);

	if (rc)

		goto get_regulator_fail;

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

+14 −0
Original line number Diff line number Diff line
@@ -1359,6 +1359,20 @@ static int msm_isp_send_hw_cmd(struct vfe_device *vfe_dev, 
		vfe_dev->vfe_ub_policy = *cfg_data;

		break;

	}

	case GET_VFE_HW_LIMIT: {

		uint32_t *hw_limit = NULL;



		if (cmd_len < sizeof(uint32_t)) {

			pr_err("%s:%d failed: invalid cmd len %u exp %zu\n",

				__func__, __LINE__, cmd_len,

				sizeof(uint32_t));

			return -EINVAL;

		}



		hw_limit = (uint32_t *)cfg_data;

		*hw_limit = vfe_dev->vfe_hw_limit;

		break;

	}

	}

	return 0;

}

include/uapi/media/msmb_isp.h

+7 −3
Original line number Diff line number Diff line
@@ -23,6 +23,8 @@ 


#define ISP_STATS_STREAM_BIT  0x80000000



#define VFE_HW_LIMIT 1



struct msm_vfe_cfg_cmd_list;



enum ISP_START_PIXEL_PATTERN {
@@ -462,6 +464,7 @@ enum msm_vfe_reg_cfg_type { 
	VFE_HW_UPDATE_UNLOCK,

	SET_WM_UB_SIZE,

	SET_UB_POLICY,

	GET_VFE_HW_LIMIT,

};



struct msm_vfe_cfg_cmd2 {
@@ -886,6 +889,7 @@ enum msm_isp_ioctl_cmd_code { 
	MSM_ISP_FETCH_ENG_MULTI_PASS_START,

	MSM_ISP_MAP_BUF_START_MULTI_PASS_FE,

	MSM_ISP_CFG_HW_STATE,

	MSM_ISP_AHB_CLK_CFG,

};



#define VIDIOC_MSM_VFE_REG_CFG \
@@ -988,9 +992,6 @@ enum msm_isp_ioctl_cmd_code { 
	_IOWR('V', MSM_ISP_UNMAP_BUF, \

		struct msm_isp_unmap_buf_req)



#define VIDIOC_MSM_ISP_AHB_CLK_CFG \

	_IOWR('V', BASE_VIDIOC_PRIVATE+25, struct msm_isp_ahb_clk_cfg)



#define VIDIOC_MSM_ISP_FETCH_ENG_MULTI_PASS_START \

	_IOWR('V', MSM_ISP_FETCH_ENG_MULTI_PASS_START, \

		struct msm_vfe_fetch_eng_multi_pass_start)
@@ -1002,4 +1003,7 @@ enum msm_isp_ioctl_cmd_code { 
#define VIDIOC_MSM_ISP_CFG_HW_STATE \

	_IOWR('V', MSM_ISP_CFG_HW_STATE, \

		struct msm_vfe_axi_stream_cfg_cmd)



#define VIDIOC_MSM_ISP_AHB_CLK_CFG \

	_IOWR('V', MSM_ISP_AHB_CLK_CFG, struct msm_isp_ahb_clk_cfg)

#endif /* __MSMB_ISP__ */