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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0689-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0689-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch58
1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0689-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch b/target/linux/bcm27xx/patches-5.4/950-0689-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch
new file mode 100644
index 0000000000..039809e94e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0689-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch
@@ -0,0 +1,58 @@
+From ea0b801a818e837e657c53687f03d62805e2e586 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 21:47:25 +0100
+Subject: [PATCH] media: i2c: ov5647: Neither analogue gain nor
+ exposure need EXECUTE_ON_WRITE
+
+The controls for analogue gain and exposure were defined with
+V4L2_CTRL_FLAG_EXECUTE_ON_WRITE. This is not required as we only need
+to send changes to the sensor.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 27 ++++++++++++---------------
+ 1 file changed, 12 insertions(+), 15 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -1472,7 +1472,6 @@ static int ov5647_probe(struct i2c_clien
+ struct v4l2_subdev *sd;
+ struct device_node *np = client->dev.of_node;
+ u32 xclk_freq;
+- struct v4l2_ctrl *ctrl;
+ int hblank;
+
+ sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+@@ -1525,20 +1524,18 @@ static int ov5647_probe(struct i2c_clien
+ V4L2_EXPOSURE_MANUAL, /* max */
+ 0, /* skip_mask */
+ V4L2_EXPOSURE_MANUAL); /* default */
+- ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+- V4L2_CID_EXPOSURE,
+- 4, /* min lines */
+- 65535, /* max lines (4+8+4 bits)*/
+- 1, /* step */
+- 1000); /* default number of lines */
+- ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
+- ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+- V4L2_CID_ANALOGUE_GAIN,
+- 16, /* min, 16 = 1.0x */
+- 1023, /* max (10 bits) */
+- 1, /* step */
+- 32); /* default, 32 = 2.0x */
+- ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
++ v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++ V4L2_CID_EXPOSURE,
++ 4, /* min lines */
++ 65535, /* max lines (4+8+4 bits)*/
++ 1, /* step */
++ 1000); /* default number of lines */
++ v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++ V4L2_CID_ANALOGUE_GAIN,
++ 16, /* min, 16 = 1.0x */
++ 1023, /* max (10 bits) */
++ 1, /* step */
++ 32); /* default, 32 = 2.0x */
+
+ /* Set the default mode before we init the subdev */
+ sensor->mode = OV5647_DEFAULT_MODE;