bcm27xx: add kernel 5.10 support

Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 112 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0471-Added-hflip-and-vflip-controls-to-ov9281.patch b/target/linux/bcm27xx/patches-5.10/950-0471-Added-hflip-and-vflip-controls-to-ov9281.patch
new file mode 100644
index 0000000000..ded3dce942
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0471-Added-hflip-and-vflip-controls-to-ov9281.patch
@@ -0,0 +1,112 @@
+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, &current_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, &current_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,