mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 17:18:59 +00:00
20ea6adbf1
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
112 lines
3.1 KiB
Diff
112 lines
3.1 KiB
Diff
From 659037c028f28ac0f13bd54a55c6c81761fb02ce Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
Date: Mon, 22 Nov 2021 12:31:35 +0000
|
|
Subject: [PATCH] media: i2c: ov5647: Add support for regulator
|
|
control.
|
|
|
|
The driver supported using GPIOs to control the shutdown line,
|
|
but no regulator control.
|
|
|
|
Add regulator hooks.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
---
|
|
drivers/media/i2c/ov5647.c | 37 +++++++++++++++++++++++++++++++++++++
|
|
1 file changed, 37 insertions(+)
|
|
|
|
--- a/drivers/media/i2c/ov5647.c
|
|
+++ b/drivers/media/i2c/ov5647.c
|
|
@@ -20,6 +20,7 @@
|
|
#include <linux/module.h>
|
|
#include <linux/of_graph.h>
|
|
#include <linux/pm_runtime.h>
|
|
+#include <linux/regulator/consumer.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/videodev2.h>
|
|
#include <media/v4l2-ctrls.h>
|
|
@@ -82,6 +83,15 @@
|
|
#define OV5647_EXPOSURE_DEFAULT 1000
|
|
#define OV5647_EXPOSURE_MAX 65535
|
|
|
|
+/* regulator supplies */
|
|
+static const char * const ov5647_supply_names[] = {
|
|
+ "avdd", /* Analog power */
|
|
+ "dovdd", /* Digital I/O power */
|
|
+ "dvdd", /* Digital core power */
|
|
+};
|
|
+
|
|
+#define OV5647_NUM_SUPPLIES ARRAY_SIZE(ov5647_supply_names)
|
|
+
|
|
struct regval_list {
|
|
u16 addr;
|
|
u8 data;
|
|
@@ -103,6 +113,7 @@ struct ov5647 {
|
|
struct mutex lock;
|
|
struct clk *xclk;
|
|
struct gpio_desc *pwdn;
|
|
+ struct regulator_bulk_data supplies[OV5647_NUM_SUPPLIES];
|
|
bool clock_ncont;
|
|
struct v4l2_ctrl_handler ctrls;
|
|
const struct ov5647_mode *mode;
|
|
@@ -787,6 +798,12 @@ static int ov5647_power_on(struct device
|
|
|
|
dev_dbg(dev, "OV5647 power on\n");
|
|
|
|
+ ret = regulator_bulk_enable(OV5647_NUM_SUPPLIES, sensor->supplies);
|
|
+ if (ret < 0) {
|
|
+ dev_err(dev, "Failed to enable regulators\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
if (sensor->pwdn) {
|
|
gpiod_set_value_cansleep(sensor->pwdn, 0);
|
|
msleep(PWDN_ACTIVE_DELAY_MS);
|
|
@@ -818,6 +835,7 @@ error_clk_disable:
|
|
clk_disable_unprepare(sensor->xclk);
|
|
error_pwdn:
|
|
gpiod_set_value_cansleep(sensor->pwdn, 1);
|
|
+ regulator_bulk_disable(OV5647_NUM_SUPPLIES, sensor->supplies);
|
|
|
|
return ret;
|
|
}
|
|
@@ -847,6 +865,7 @@ static int ov5647_power_off(struct devic
|
|
|
|
clk_disable_unprepare(sensor->xclk);
|
|
gpiod_set_value_cansleep(sensor->pwdn, 1);
|
|
+ regulator_bulk_disable(OV5647_NUM_SUPPLIES, sensor->supplies);
|
|
|
|
return 0;
|
|
}
|
|
@@ -1347,6 +1366,18 @@ static const struct v4l2_ctrl_ops ov5647
|
|
.s_ctrl = ov5647_s_ctrl,
|
|
};
|
|
|
|
+static int ov5647_configure_regulators(struct device *dev,
|
|
+ struct ov5647 *sensor)
|
|
+{
|
|
+ unsigned int i;
|
|
+
|
|
+ for (i = 0; i < OV5647_NUM_SUPPLIES; i++)
|
|
+ sensor->supplies[i].supply = ov5647_supply_names[i];
|
|
+
|
|
+ return devm_regulator_bulk_get(dev, OV5647_NUM_SUPPLIES,
|
|
+ sensor->supplies);
|
|
+}
|
|
+
|
|
static int ov5647_init_controls(struct ov5647 *sensor, struct device *dev)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd);
|
|
@@ -1494,6 +1525,12 @@ static int ov5647_probe(struct i2c_clien
|
|
return -EINVAL;
|
|
}
|
|
|
|
+ ret = ov5647_configure_regulators(dev, sensor);
|
|
+ if (ret) {
|
|
+ dev_err(dev, "Failed to get power regulators\n");
|
|
+ return ret;
|
|
+ }
|
|
+
|
|
mutex_init(&sensor->lock);
|
|
|
|
sensor->mode = OV5647_DEFAULT_MODE;
|