+++ /dev/null
-From 6c7ebe661716fc23c52cd800a173e4675b10202a Mon Sep 17 00:00:00 2001
-From: Mathias Anhalt <mathiasanhalt@web.de>
-Date: Wed, 3 Feb 2021 20:34:09 +0100
-Subject: [PATCH] Added hflip and vflip controls to ov9281
-
-Signed-off-by: Mathias Anhalt <mathiasanhalt@web.de>
----
- drivers/media/i2c/ov9281.c | 58 +++++++++++++++++++++++++++++++++++++-
- 1 file changed, 57 insertions(+), 1 deletion(-)
-
---- a/drivers/media/i2c/ov9281.c
-+++ b/drivers/media/i2c/ov9281.c
-@@ -40,6 +40,10 @@
- #define CHIP_ID 0x9281
- #define OV9281_REG_CHIP_ID 0x300a
-
-+#define OV9281_REG_TIMING_FORMAT_1 0x3820
-+#define OV9281_REG_TIMING_FORMAT_2 0x3821
-+#define OV9281_FLIP_BIT BIT(2)
-+
- #define OV9281_REG_CTRL_MODE 0x0100
- #define OV9281_MODE_SW_STANDBY 0x0
- #define OV9281_MODE_STREAMING BIT(0)
-@@ -123,6 +127,8 @@ struct ov9281 {
- struct v4l2_ctrl *digi_gain;
- struct v4l2_ctrl *hblank;
- struct v4l2_ctrl *vblank;
-+ struct v4l2_ctrl *hflip;
-+ struct v4l2_ctrl *vflip;
- struct v4l2_ctrl *pixel_rate;
- struct v4l2_ctrl *test_pattern;
- struct mutex mutex;
-@@ -615,6 +621,42 @@ static int ov9281_enable_test_pattern(st
- OV9281_REG_VALUE_08BIT, val);
- }
-
-+static int ov9281_set_ctrl_hflip(struct ov9281 *ov9281, int value)
-+{
-+ u32 current_val;
-+ int ret = ov9281_read_reg(ov9281->client, OV9281_REG_TIMING_FORMAT_2,
-+ OV9281_REG_VALUE_08BIT, ¤t_val);
-+ if (!ret) {
-+ if (value)
-+ current_val |= OV9281_FLIP_BIT;
-+ else
-+ current_val &= ~OV9281_FLIP_BIT;
-+ return ov9281_write_reg(ov9281->client,
-+ OV9281_REG_TIMING_FORMAT_2,
-+ OV9281_REG_VALUE_08BIT,
-+ current_val);
-+ }
-+ return ret;
-+}
-+
-+static int ov9281_set_ctrl_vflip(struct ov9281 *ov9281, int value)
-+{
-+ u32 current_val;
-+ int ret = ov9281_read_reg(ov9281->client, OV9281_REG_TIMING_FORMAT_1,
-+ OV9281_REG_VALUE_08BIT, ¤t_val);
-+ if (!ret) {
-+ if (value)
-+ current_val |= OV9281_FLIP_BIT;
-+ else
-+ current_val &= ~OV9281_FLIP_BIT;
-+ return ov9281_write_reg(ov9281->client,
-+ OV9281_REG_TIMING_FORMAT_1,
-+ OV9281_REG_VALUE_08BIT,
-+ current_val);
-+ }
-+ return ret;
-+}
-+
- static const struct v4l2_rect *
- __ov9281_get_pad_crop(struct ov9281 *ov9281, struct v4l2_subdev_pad_config *cfg,
- unsigned int pad, enum v4l2_subdev_format_whence which)
-@@ -933,6 +975,12 @@ static int ov9281_set_ctrl(struct v4l2_c
- return 0;
-
- switch (ctrl->id) {
-+ case V4L2_CID_HFLIP:
-+ ret = ov9281_set_ctrl_hflip(ov9281, ctrl->val);
-+ break;
-+ case V4L2_CID_VFLIP:
-+ ret = ov9281_set_ctrl_vflip(ov9281, ctrl->val);
-+ break;
- case V4L2_CID_EXPOSURE:
- /* 4 least significant bits of expsoure are fractional part */
- ret = ov9281_write_reg(ov9281->client, OV9281_REG_EXPOSURE,
-@@ -981,7 +1029,7 @@ static int ov9281_initialize_controls(st
-
- handler = &ov9281->ctrl_handler;
- mode = ov9281->cur_mode;
-- ret = v4l2_ctrl_handler_init(handler, 8);
-+ ret = v4l2_ctrl_handler_init(handler, 9);
- if (ret)
- return ret;
- handler->lock = &ov9281->mutex;
-@@ -1022,6 +1070,14 @@ static int ov9281_initialize_controls(st
- OV9281_GAIN_STEP,
- OV9281_GAIN_DEFAULT);
-
-+ ov9281->vflip = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
-+ V4L2_CID_VFLIP,
-+ 0, 1, 1, 0);
-+
-+ ov9281->hflip = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
-+ V4L2_CID_HFLIP,
-+ 0, 1, 1, 0);
-+
- ov9281->test_pattern =
- v4l2_ctrl_new_std_menu_items(handler, &ov9281_ctrl_ops,
- V4L2_CID_TEST_PATTERN,