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BACKPORT: msm: camera: Add regulator enable and disable independent of CSID

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Regulator enable and disable of CSIPHY depends on the CSID module.
Make the enable and disable of clk regulator independent of CSIPHY.

Bug: 33299365
CRs-Fixed: 1107702
Change-Id: Iabb5eb28d63b34a4c3201c53be17054a1907f4fe
Signed-off-by: Ravi Kishore Tanuku <rktanuku@codeaurora.org>
Signed-off-by: VijayaKumar T M <vtmuni@codeaurora.org>
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
(cherry picked from commit b1bb44c9cca61e48ec6158abad6e7969a8e58abf)
CVE-2017-8264
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
This commit is contained in:
Nick Desaulniers 2017-05-10 11:39:45 -07:00 committed by Francescodario Cuzzocrea
parent 375d3f2b86
commit 62856dafc3
3 changed files with 99 additions and 1 deletions
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6
arch/arm/boot/dts/msm8974pro/core/msm8974-camera.dtsi
View file

@ -31,6 +31,8 @@
reg-names = "csiphy", "csiphy_clk_mux";
interrupts = <0 78 0>;
interrupt-names = "csiphy";
qcom,csi-vdd-voltage = <1800000>;
qcom,mipi-csi-vdd-supply = <&pma8084_l12>;
};
qcom,csiphy@fda0b000 {
@ -41,6 +43,8 @@
reg-names = "csiphy", "csiphy_clk_mux";
interrupts = <0 79 0>;
interrupt-names = "csiphy";
qcom,csi-vdd-voltage = <1800000>;
qcom,mipi-csi-vdd-supply = <&pma8084_l12>;
};
qcom,csiphy@fda0b400 {
@ -51,6 +55,8 @@
reg-names = "csiphy", "csiphy_clk_mux";
interrupts = <0 80 0>;
interrupt-names = "csiphy";
qcom,csi-vdd-voltage = <1800000>;
qcom,mipi-csi-vdd-supply = <&pma8084_l12>;
};
qcom,csid@fda08000 {

92
drivers/media/platform/msm/camera_v2/sensor/csiphy/msm_csiphy.c
View file

@ -1,4 +1,4 @@
/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
/* Copyright (c) 2011-2014, 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
@ -27,6 +27,10 @@
#define CSIPHY_VERSION_V3 0x10
#define MSM_CSIPHY_DRV_NAME "msm_csiphy"
static struct camera_vreg_t csiphy_vreg_info[] = {
{"qcom,mipi-csi-vdd", 0, 0, 12000},
};
#undef CDBG
#ifdef CONFIG_MSMB_CAMERA_DEBUG
#define CDBG(fmt, args...) pr_err(fmt, ##args)
@ -222,6 +226,21 @@ static int msm_csiphy_init(struct csiphy_device *csiphy_dev)
}
CDBG("%s:%d called\n", __func__, __LINE__);
rc = msm_camera_config_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 1);
if (rc < 0) {
pr_err("%s: regulator config failed\n", __func__);
goto csiphy_vreg_config_fail;
}
rc = msm_camera_enable_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 1);
if (rc < 0) {
pr_err("%s: regulator enable failed\n", __func__);
goto csiphy_vreg_enable_fail;
}
if (CSIPHY_VERSION < CSIPHY_VERSION_V3) {
CDBG("%s:%d called\n", __func__, __LINE__);
rc = msm_cam_clk_enable(&csiphy_dev->pdev->dev,
@ -272,6 +291,16 @@ static int msm_csiphy_init(struct csiphy_device *csiphy_dev)
csiphy_dev->hw_version);
csiphy_dev->csiphy_state = CSIPHY_POWER_UP;
return 0;
csiphy_vreg_enable_fail:
rc = msm_camera_config_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 0);
csiphy_vreg_config_fail:
iounmap(csiphy_dev->base);
csiphy_dev->base = NULL;
return rc;
}
#else
static int msm_csiphy_init(struct csiphy_device *csiphy_dev)
@ -309,6 +338,20 @@ static int msm_csiphy_init(struct csiphy_device *csiphy_dev)
}
CDBG("%s:%d called\n", __func__, __LINE__);
rc = msm_camera_config_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 1);
if (rc < 0) {
pr_err("%s: regulator config failed\n", __func__);
goto csiphy_vreg_config_fail;
}
rc = msm_camera_enable_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 1);
if (rc < 0) {
pr_err("%s: regulator enable failed\n", __func__);
goto csiphy_vreg_enable_fail;
}
if (CSIPHY_VERSION < CSIPHY_VERSION_V3) {
CDBG("%s:%d called\n", __func__, __LINE__);
@ -360,6 +403,15 @@ static int msm_csiphy_init(struct csiphy_device *csiphy_dev)
csiphy_dev->hw_version);
csiphy_dev->csiphy_state = CSIPHY_POWER_UP;
return 0;
csiphy_vreg_enable_fail:
rc = msm_camera_config_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 0);
csiphy_vreg_config_fail:
iounmap(csiphy_dev->base);
csiphy_dev->base = NULL;
return rc;
}
#endif
@ -435,6 +487,18 @@ static int msm_csiphy_release(struct csiphy_device *csiphy_dev, void *arg)
iounmap(csiphy_dev->clk_mux_base);
}
msm_camera_enable_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 0);
msm_camera_config_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 0);
if (!IS_ERR_OR_NULL(csiphy_dev->reg_ptr)) {
regulator_disable(csiphy_dev->reg_ptr);
regulator_put(csiphy_dev->reg_ptr);
}
iounmap(csiphy_dev->base);
csiphy_dev->base = NULL;
csiphy_dev->csiphy_state = CSIPHY_POWER_DOWN;
@ -504,6 +568,18 @@ static int msm_csiphy_release(struct csiphy_device *csiphy_dev, void *arg)
iounmap(csiphy_dev->clk_mux_base);
}
msm_camera_enable_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 0);
msm_camera_config_vreg(&csiphy_dev->pdev->dev,
csiphy_vreg_info, ARRAY_SIZE(csiphy_vreg_info),
NULL, 0, &csiphy_dev->csi_vdd, 0);
if (!IS_ERR_OR_NULL(csiphy_dev->reg_ptr)) {
regulator_disable(csiphy_dev->reg_ptr);
regulator_put(csiphy_dev->reg_ptr);
}
iounmap(csiphy_dev->base);
csiphy_dev->base = NULL;
csiphy_dev->csiphy_state = CSIPHY_POWER_DOWN;
@ -607,6 +683,7 @@ static const struct v4l2_subdev_ops msm_csiphy_subdev_ops = {
static int __devinit csiphy_probe(struct platform_device *pdev)
{
struct csiphy_device *new_csiphy_dev;
uint32_t csi_vdd_voltage = 0;
int rc = 0;
new_csiphy_dev = kzalloc(sizeof(struct csiphy_device), GFP_KERNEL);
@ -626,6 +703,19 @@ static int __devinit csiphy_probe(struct platform_device *pdev)
"cell-index", &pdev->id);
pr_err("%s: device id = %d\n", __func__, pdev->id);
rc = of_property_read_u32((&pdev->dev)->of_node,
"qcom,csi-vdd-voltage", &csi_vdd_voltage);
if (rc < 0) {
pr_err("%s:%d failed to read qcom,csi-vdd-voltage\n",
__func__, __LINE__);
return rc;
}
CDBG("%s:%d reading mipi_csi_vdd is %d\n", __func__, __LINE__,
csi_vdd_voltage);
csiphy_vreg_info[0].min_voltage = csi_vdd_voltage;
csiphy_vreg_info[0].max_voltage = csi_vdd_voltage;
new_csiphy_dev->mem = platform_get_resource_byname(pdev,
IORESOURCE_MEM, "csiphy");
if (!new_csiphy_dev->mem) {

2
drivers/media/platform/msm/camera_v2/sensor/csiphy/msm_csiphy.h
View file

@ -45,6 +45,8 @@ struct csiphy_device {
struct clk *csiphy_clk[4];
uint8_t ref_count;
uint16_t lane_mask[MAX_CSIPHY];
struct regulator *csi_vdd;
struct regulator *reg_ptr;
};
#define VIDIOC_MSM_CSIPHY_RELEASE \