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, 169 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.15/950-0820-media-i2c-imx258-Add-get_selection-for-pixel-array-i.patch b/target/linux/bcm27xx/patches-5.15/950-0820-media-i2c-imx258-Add-get_selection-for-pixel-array-i.patch
new file mode 100644
index 0000000000..d4b8305b4a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0820-media-i2c-imx258-Add-get_selection-for-pixel-array-i.patch
@@ -0,0 +1,169 @@
+From 6e8b94f48ce58e2b9c09000eb77642f3633a6b0b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 23 Mar 2022 15:48:49 +0000
+Subject: [PATCH] media: i2c: imx258: Add get_selection for pixel array
+ information
+
+Libcamera requires the cropping information for each mode, so
+add this information to the driver.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx258.c | 90 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 90 insertions(+)
+
+--- a/drivers/media/i2c/imx258.c
++++ b/drivers/media/i2c/imx258.c
+@@ -78,6 +78,14 @@
+ #define REG_CONFIG_MIRROR_VFLIP		0x02
+ #define REG_CONFIG_FLIP_TEST_PATTERN	0x02
+ 
++/* IMX258 native and active pixel array size. */
++#define IMX258_NATIVE_WIDTH		4224U
++#define IMX258_NATIVE_HEIGHT		3192U
++#define IMX258_PIXEL_ARRAY_LEFT		8U
++#define IMX258_PIXEL_ARRAY_TOP		16U
++#define IMX258_PIXEL_ARRAY_WIDTH	4208U
++#define IMX258_PIXEL_ARRAY_HEIGHT	3120U
++
+ struct imx258_reg {
+ 	u16 address;
+ 	u8 val;
+@@ -116,6 +124,9 @@ struct imx258_mode {
+ 	u32 link_freq_index;
+ 	/* Default register values */
+ 	struct imx258_reg_list reg_list;
++
++	/* Analog crop rectangle. */
++	struct v4l2_rect crop;
+ };
+ 
+ /* 4208x3120 needs 1267Mbps/lane, 4 lanes. Use that rate on 2 lanes as well */
+@@ -774,6 +785,12 @@ static const struct imx258_mode supporte
+ 			.regs = mode_4208x3120_regs,
+ 		},
+ 		.link_freq_index = IMX258_LINK_FREQ_1267MBPS,
++		.crop = {
++			.left = IMX258_PIXEL_ARRAY_LEFT,
++			.top = IMX258_PIXEL_ARRAY_TOP,
++			.width = 4208,
++			.height = 3120,
++		},
+ 	},
+ 	{
+ 		.width = 2104,
+@@ -785,6 +802,12 @@ static const struct imx258_mode supporte
+ 			.regs = mode_2104_1560_regs,
+ 		},
+ 		.link_freq_index = IMX258_LINK_FREQ_640MBPS,
++		.crop = {
++			.left = IMX258_PIXEL_ARRAY_LEFT,
++			.top = IMX258_PIXEL_ARRAY_TOP,
++			.width = 4208,
++			.height = 3120,
++		},
+ 	},
+ 	{
+ 		.width = 1048,
+@@ -796,6 +819,12 @@ static const struct imx258_mode supporte
+ 			.regs = mode_1048_780_regs,
+ 		},
+ 		.link_freq_index = IMX258_LINK_FREQ_640MBPS,
++		.crop = {
++			.left = IMX258_PIXEL_ARRAY_LEFT,
++			.top = IMX258_PIXEL_ARRAY_TOP,
++			.width = 4208,
++			.height = 3120,
++		},
+ 	},
+ };
+ 
+@@ -930,6 +959,7 @@ static int imx258_open(struct v4l2_subde
+ 	struct imx258 *imx258 = to_imx258(sd);
+ 	struct v4l2_mbus_framefmt *try_fmt =
+ 		v4l2_subdev_get_try_format(sd, fh->state, 0);
++	struct v4l2_rect *try_crop;
+ 
+ 	/* Initialize try_fmt */
+ 	try_fmt->width = supported_modes[0].width;
+@@ -937,6 +967,13 @@ static int imx258_open(struct v4l2_subde
+ 	try_fmt->code = imx258_get_format_code(imx258);
+ 	try_fmt->field = V4L2_FIELD_NONE;
+ 
++	/* Initialize try_crop */
++	try_crop = v4l2_subdev_get_try_crop(sd, fh->state, 0);
++	try_crop->left = IMX258_PIXEL_ARRAY_LEFT;
++	try_crop->top = IMX258_PIXEL_ARRAY_TOP;
++	try_crop->width = IMX258_PIXEL_ARRAY_WIDTH;
++	try_crop->height = IMX258_PIXEL_ARRAY_HEIGHT;
++
+ 	return 0;
+ }
+ 
+@@ -1193,6 +1230,58 @@ static int imx258_set_pad_format(struct
+ 	return 0;
+ }
+ 
++static const struct v4l2_rect *
++__imx258_get_pad_crop(struct imx258 *imx258,
++		      struct v4l2_subdev_state *sd_state,
++		      unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++	switch (which) {
++	case V4L2_SUBDEV_FORMAT_TRY:
++		return v4l2_subdev_get_try_crop(&imx258->sd, sd_state, pad);
++	case V4L2_SUBDEV_FORMAT_ACTIVE:
++		return &imx258->cur_mode->crop;
++	}
++
++	return NULL;
++}
++
++static int imx258_get_selection(struct v4l2_subdev *sd,
++				struct v4l2_subdev_state *sd_state,
++				struct v4l2_subdev_selection *sel)
++{
++	switch (sel->target) {
++	case V4L2_SEL_TGT_CROP: {
++		struct imx258 *imx258 = to_imx258(sd);
++
++		mutex_lock(&imx258->mutex);
++		sel->r = *__imx258_get_pad_crop(imx258, sd_state, sel->pad,
++						sel->which);
++		mutex_unlock(&imx258->mutex);
++
++		return 0;
++	}
++
++	case V4L2_SEL_TGT_NATIVE_SIZE:
++		sel->r.left = 0;
++		sel->r.top = 0;
++		sel->r.width = IMX258_NATIVE_WIDTH;
++		sel->r.height = IMX258_NATIVE_HEIGHT;
++
++		return 0;
++
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++	case V4L2_SEL_TGT_CROP_BOUNDS:
++		sel->r.left = IMX258_PIXEL_ARRAY_LEFT;
++		sel->r.top = IMX258_PIXEL_ARRAY_TOP;
++		sel->r.width = IMX258_PIXEL_ARRAY_WIDTH;
++		sel->r.height = IMX258_PIXEL_ARRAY_HEIGHT;
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
+ /* Start streaming */
+ static int imx258_start_streaming(struct imx258 *imx258)
+ {
+@@ -1389,6 +1478,7 @@ static const struct v4l2_subdev_pad_ops
+ 	.get_fmt = imx258_get_pad_format,
+ 	.set_fmt = imx258_set_pad_format,
+ 	.enum_frame_size = imx258_enum_frame_size,
++	.get_selection = imx258_get_selection,
+ };
+ 
+ static const struct v4l2_subdev_ops imx258_subdev_ops = {