bcm27xx: add support for linux v5.15

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>

1 files changed, 59 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.15/950-0825-media-i2c-imx258-Set-pixel_rate-range-to-the-same-as.patch b/target/linux/bcm27xx/patches-5.15/950-0825-media-i2c-imx258-Set-pixel_rate-range-to-the-same-as.patch
new file mode 100644
index 0000000000..e4eb53f664
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0825-media-i2c-imx258-Set-pixel_rate-range-to-the-same-as.patch
@@ -0,0 +1,59 @@
+From 3d314e1c554ea4cc64dcdd5e227767a518b7dcb2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 1 Apr 2022 18:54:12 +0100
+Subject: [PATCH] media: i2c: imx258: Set pixel_rate range to the same
+ as the value
+
+With a read only control there is limited point in advertising
+a minimum and maximum for the control, so change to set the
+value, min, and max all to the selected pixel rate.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx258.c | 18 +++++++-----------
+ 1 file changed, 7 insertions(+), 11 deletions(-)
+
+--- a/drivers/media/i2c/imx258.c
++++ b/drivers/media/i2c/imx258.c
+@@ -1237,7 +1237,8 @@ static int imx258_set_pad_format(struct
+ 
+ 		link_freq = imx258->link_freq_menu_items[mode->link_freq_index];
+ 		pixel_rate = link_freq_to_pixel_rate(link_freq, imx258->nlanes);
+-		__v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate);
++		__v4l2_ctrl_modify_range(imx258->pixel_rate, pixel_rate,
++					 pixel_rate, 1, pixel_rate);
+ 		/* Update limits and set FPS to default */
+ 		vblank_def = imx258->cur_mode->vts_def -
+ 			     imx258->cur_mode->height;
+@@ -1546,8 +1547,7 @@ static int imx258_init_controls(struct i
+ 	struct v4l2_ctrl_handler *ctrl_hdlr;
+ 	s64 vblank_def;
+ 	s64 vblank_min;
+-	s64 pixel_rate_min;
+-	s64 pixel_rate_max;
++	s64 pixel_rate;
+ 	int ret;
+ 
+ 	ctrl_hdlr = &imx258->ctrl_handler;
+@@ -1567,17 +1567,13 @@ static int imx258_init_controls(struct i
+ 	if (imx258->link_freq)
+ 		imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ 
+-	pixel_rate_max =
+-		link_freq_to_pixel_rate(imx258->link_freq_menu_items[0],
+-					imx258->nlanes);
+-	pixel_rate_min =
+-		link_freq_to_pixel_rate(imx258->link_freq_menu_items[1],
+-					imx258->nlanes);
++	pixel_rate = link_freq_to_pixel_rate(imx258->link_freq_menu_items[0],
++					     imx258->nlanes);
+ 	/* By default, PIXEL_RATE is read only */
+ 	imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
+ 				V4L2_CID_PIXEL_RATE,
+-				pixel_rate_min, pixel_rate_max,
+-				1, pixel_rate_max);
++				pixel_rate, pixel_rate,
++				1, pixel_rate);
+ 
+ 
+ 	vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height;