brcm2708: rename target to bcm27xx

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0167-media-ov5647-Add-support-for-PWDN-GPIO.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0167-media-ov5647-Add-support-for-PWDN-GPIO.patch b/target/linux/brcm2708/patches-4.19/950-0167-media-ov5647-Add-support-for-PWDN-GPIO.patch
deleted file mode 100644 (file)
index 80a5d90..0000000
--- a/target/linux/brcm2708/patches-4.19/950-0167-media-ov5647-Add-support-for-PWDN-GPIO.patch
+++ /dev/null
@@ -1,92 +0,0 @@
-From f41fdda9ca98e675d7467cc352c678bbcdca2df1 Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Wed, 31 Oct 2018 14:56:33 +0000
-Subject: [PATCH] media: ov5647: Add support for PWDN GPIO.
-
-Add support for an optional GPIO connected to PWDN on the sensor.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
----
- drivers/media/i2c/ov5647.c | 28 ++++++++++++++++++++++++++++
- 1 file changed, 28 insertions(+)
-
---- a/drivers/media/i2c/ov5647.c
-+++ b/drivers/media/i2c/ov5647.c
-@@ -21,6 +21,7 @@
- 
- #include <linux/clk.h>
- #include <linux/delay.h>
-+#include <linux/gpio/consumer.h>
- #include <linux/i2c.h>
- #include <linux/init.h>
- #include <linux/io.h>
-@@ -35,6 +36,13 @@
- 
- #define SENSOR_NAME "ov5647"
- 
-+/*
-+ * From the datasheet, "20ms after PWDN goes low or 20ms after RESETB goes
-+ * high if reset is inserted after PWDN goes high, host can access sensor's
-+ * SCCB to initialize sensor."
-+ */
-+#define PWDN_ACTIVE_DELAY_MS  20
-+
- #define MIPI_CTRL00_CLOCK_LANE_GATE           BIT(5)
- #define MIPI_CTRL00_BUS_IDLE                  BIT(2)
- #define MIPI_CTRL00_CLOCK_LANE_DISABLE                BIT(0)
-@@ -86,6 +94,7 @@ struct ov5647 {
-       unsigned int                    height;
-       int                             power_count;
-       struct clk                      *xclk;
-+      struct gpio_desc                *pwdn;
- };
- 
- static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
-@@ -355,6 +364,11 @@ static int ov5647_sensor_power(struct v4
-       if (on && !ov5647->power_count) {
-               dev_dbg(&client->dev, "OV5647 power on\n");
- 
-+              if (ov5647->pwdn) {
-+                      gpiod_set_value(ov5647->pwdn, 0);
-+                      msleep(PWDN_ACTIVE_DELAY_MS);
-+              }
-+
-               ret = clk_prepare_enable(ov5647->xclk);
-               if (ret < 0) {
-                       dev_err(&client->dev, "clk prepare enable failed\n");
-@@ -392,6 +406,8 @@ static int ov5647_sensor_power(struct v4
-                       dev_dbg(&client->dev, "soft stby failed\n");
- 
-               clk_disable_unprepare(ov5647->xclk);
-+
-+              gpiod_set_value(ov5647->pwdn, 1);
-       }
- 
-       /* Update the power count. */
-@@ -604,6 +620,10 @@ static int ov5647_probe(struct i2c_clien
-               return -EINVAL;
-       }
- 
-+      /* Request the power down GPIO asserted */
-+      sensor->pwdn = devm_gpiod_get_optional(&client->dev, "pwdn",
-+                                             GPIOD_OUT_HIGH);
-+
-       mutex_init(&sensor->lock);
- 
-       sd = &sensor->sd;
-@@ -617,7 +637,15 @@ static int ov5647_probe(struct i2c_clien
-       if (ret < 0)
-               goto mutex_remove;
- 
-+      if (sensor->pwdn) {
-+              gpiod_set_value(sensor->pwdn, 0);
-+              msleep(PWDN_ACTIVE_DELAY_MS);
-+      }
-+
-       ret = ov5647_detect(sd);
-+
-+      gpiod_set_value(sensor->pwdn, 1);
-+
-       if (ret < 0)
-               goto error;
-