diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0590-media-i2c-imx219-make-HBLANK-r-w-to-allow-longer-exp.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0590-media-i2c-imx219-make-HBLANK-r-w-to-allow-longer-exp.patch | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0590-media-i2c-imx219-make-HBLANK-r-w-to-allow-longer-exp.patch b/target/linux/bcm27xx/patches-6.1/950-0590-media-i2c-imx219-make-HBLANK-r-w-to-allow-longer-exp.patch deleted file mode 100644 index dffae37774..0000000000 --- a/target/linux/bcm27xx/patches-6.1/950-0590-media-i2c-imx219-make-HBLANK-r-w-to-allow-longer-exp.patch +++ /dev/null @@ -1,105 +0,0 @@ -From 9c3cf1138410254184dd863ab2177d1f8d6c652b Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.com> -Date: Fri, 10 Mar 2023 17:27:10 +0000 -Subject: [PATCH] media: i2c: imx219: make HBLANK r/w to allow longer - exposures - -The HBLANK control was read-only, and always configured such -that the sensor HTS register was 3448. This limited the maximum -exposure time that could be achieved to around 1.26 secs. - -Make HBLANK read/write so that the line time can be extended, -and thereby allow longer exposures (and slower frame rates). -Retain the overall HTS setting when changing modes rather than -resetting it to a default. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> ---- - drivers/media/i2c/imx219.c | 37 ++++++++++++++++++++++++------------- - 1 file changed, 24 insertions(+), 13 deletions(-) - ---- a/drivers/media/i2c/imx219.c -+++ b/drivers/media/i2c/imx219.c -@@ -63,8 +63,10 @@ - #define IMX219_FLL_STEP 1 - #define IMX219_FLL_DEFAULT 0x0c98 - --/* HBLANK control - read only */ --#define IMX219_PPL_DEFAULT 3448 -+/* HBLANK control range */ -+#define IMX219_PPL_MIN 3448 -+#define IMX219_PPL_MAX 0x7ff0 -+#define IMX219_REG_HTS 0x0162 - - /* Exposure control */ - #define IMX219_REG_EXPOSURE 0x015a -@@ -191,8 +193,6 @@ static const struct imx219_reg imx219_co - {0x479b, 0x0e}, - - /* Frame Bank Register Group "A" */ -- {0x0162, 0x0d}, /* Line_Length_A */ -- {0x0163, 0x78}, - {0x0170, 0x01}, /* X_ODD_INC_A */ - {0x0171, 0x01}, /* Y_ODD_INC_A */ - -@@ -679,6 +679,11 @@ static int imx219_set_ctrl(struct v4l2_c - IMX219_REG_VALUE_16BIT, - imx219->mode->height + ctrl->val); - break; -+ case V4L2_CID_HBLANK: -+ ret = imx219_write_reg(imx219, IMX219_REG_HTS, -+ IMX219_REG_VALUE_16BIT, -+ imx219->mode->width + ctrl->val); -+ break; - case V4L2_CID_TEST_PATTERN_RED: - ret = imx219_write_reg(imx219, IMX219_REG_TESTP_RED, - IMX219_REG_VALUE_16BIT, ctrl->val); -@@ -837,6 +842,8 @@ static int imx219_set_pad_format(struct - *framefmt = fmt->format; - } else if (imx219->mode != mode || - imx219->fmt.code != fmt->format.code) { -+ u32 prev_hts = imx219->mode->width + imx219->hblank->val; -+ - imx219->fmt = fmt->format; - imx219->mode = mode; - /* Update limits and set FPS to default */ -@@ -854,13 +861,19 @@ static int imx219_set_pad_format(struct - exposure_max, imx219->exposure->step, - exposure_def); - /* -- * Currently PPL is fixed to IMX219_PPL_DEFAULT, so hblank -- * depends on mode->width only, and is not changeble in any -- * way other than changing the mode. -+ * Retain PPL setting from previous mode so that the -+ * line time does not change on a mode change. -+ * Limits have to be recomputed as the controls define -+ * the blanking only, so PPL values need to have the -+ * mode width subtracted. - */ -- hblank = IMX219_PPL_DEFAULT - mode->width; -- __v4l2_ctrl_modify_range(imx219->hblank, hblank, hblank, 1, -- hblank); -+ hblank = prev_hts - mode->width; -+ __v4l2_ctrl_modify_range(imx219->hblank, -+ IMX219_PPL_MIN - mode->width, -+ IMX219_PPL_MAX - mode->width, -+ 1, -+ IMX219_PPL_MIN - mode->width); -+ __v4l2_ctrl_s_ctrl(imx219->hblank, hblank); - } - - mutex_unlock(&imx219->mutex); -@@ -1263,12 +1276,10 @@ static int imx219_init_controls(struct i - V4L2_CID_VBLANK, IMX219_VBLANK_MIN, - IMX219_VTS_MAX - height, 1, - imx219->mode->vts_def - height); -- hblank = IMX219_PPL_DEFAULT - imx219->mode->width; -+ hblank = IMX219_PPL_MIN - imx219->mode->width; - imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_HBLANK, hblank, hblank, - 1, hblank); -- if (imx219->hblank) -- imx219->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; - exposure_max = imx219->mode->vts_def - 4; - exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ? - exposure_max : IMX219_EXPOSURE_DEFAULT; |