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, 190 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch b/target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch
new file mode 100644
index 0000000000..bbb5afae9e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch
@@ -0,0 +1,190 @@
+From c298f9514f99b9dfde64bb5f07fe09ee8dfdcd48 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 29 Jun 2021 14:43:01 +0100
+Subject: [PATCH] media: i2c: imx477: Extend driver to support imx378
+ sensor
+
+The imx378 sensor is almost identical to the imx477 and can be
+supported as a "compatible" sensor with just a few extra register
+writes.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/Kconfig  |  2 +-
+ drivers/media/i2c/imx477.c | 68 +++++++++++++++++++++++++++++++++-----
+ 2 files changed, 60 insertions(+), 10 deletions(-)
+
+--- a/drivers/media/i2c/Kconfig
++++ b/drivers/media/i2c/Kconfig
+@@ -807,7 +807,7 @@ config VIDEO_IMX477
+ 	depends on MEDIA_CAMERA_SUPPORT
+ 	help
+ 	  This is a Video4Linux2 sensor driver for the Sony
+-	  IMX477 camera.
++	  IMX477 camera. Also supports the Sony IMX378.
+ 
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called imx477.
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -12,6 +12,7 @@
+ #include <linux/gpio/consumer.h>
+ #include <linux/i2c.h>
+ #include <linux/module.h>
++#include <linux/of_device.h>
+ #include <linux/pm_runtime.h>
+ #include <linux/regulator/consumer.h>
+ #include <media/v4l2-ctrls.h>
+@@ -26,6 +27,7 @@
+ /* Chip ID */
+ #define IMX477_REG_CHIP_ID		0x0016
+ #define IMX477_CHIP_ID			0x0477
++#define IMX378_CHIP_ID			0x0378
+ 
+ #define IMX477_REG_MODE_SELECT		0x0100
+ #define IMX477_MODE_STANDBY		0x00
+@@ -1069,6 +1071,11 @@ static const char * const imx477_supply_
+ #define IMX477_XCLR_MIN_DELAY_US	8000
+ #define IMX477_XCLR_DELAY_RANGE_US	1000
+ 
++struct imx477_compatible_data {
++	unsigned int chip_id;
++	struct imx477_reg_list extra_regs;
++};
++
+ struct imx477 {
+ 	struct v4l2_subdev sd;
+ 	struct media_pad pad[NUM_PADS];
+@@ -1107,6 +1114,9 @@ struct imx477 {
+ 
+ 	/* Current long exposure factor in use. Set through V4L2_CID_VBLANK */
+ 	unsigned int long_exp_shift;
++
++	/* Any extra information related to different compatible sensors */
++	const struct imx477_compatible_data *compatible_data;
+ };
+ 
+ static inline struct imx477 *to_imx477(struct v4l2_subdev *_sd)
+@@ -1673,11 +1683,18 @@ static int imx477_start_streaming(struct
+ {
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	const struct imx477_reg_list *reg_list;
++	const struct imx477_reg_list *extra_regs;
+ 	int ret;
+ 
+ 	if (!imx477->common_regs_written) {
+ 		ret = imx477_write_regs(imx477, mode_common_regs,
+ 					ARRAY_SIZE(mode_common_regs));
++		if (!ret) {
++			extra_regs = &imx477->compatible_data->extra_regs;
++			ret = imx477_write_regs(imx477,	extra_regs->regs,
++						extra_regs->num_of_regs);
++		}
++
+ 		if (ret) {
+ 			dev_err(&client->dev, "%s failed to set common settings\n",
+ 				__func__);
+@@ -1863,7 +1880,7 @@ static int imx477_get_regulators(struct
+ }
+ 
+ /* Verify chip ID */
+-static int imx477_identify_module(struct imx477 *imx477)
++static int imx477_identify_module(struct imx477 *imx477, u32 expected_id)
+ {
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	int ret;
+@@ -1873,16 +1890,18 @@ static int imx477_identify_module(struct
+ 			      IMX477_REG_VALUE_16BIT, &val);
+ 	if (ret) {
+ 		dev_err(&client->dev, "failed to read chip id %x, with error %d\n",
+-			IMX477_CHIP_ID, ret);
++			expected_id, ret);
+ 		return ret;
+ 	}
+ 
+-	if (val != IMX477_CHIP_ID) {
++	if (val != expected_id) {
+ 		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
+-			IMX477_CHIP_ID, val);
++			expected_id, val);
+ 		return -EIO;
+ 	}
+ 
++	dev_info(&client->dev, "Device found is imx%x\n", val);
++
+ 	return 0;
+ }
+ 
+@@ -2078,10 +2097,39 @@ error_out:
+ 	return ret;
+ }
+ 
++static const struct imx477_compatible_data imx477_compatible = {
++	.chip_id = IMX477_CHIP_ID,
++	.extra_regs = {
++		.num_of_regs = 0,
++		.regs = NULL
++	}
++};
++
++static const struct imx477_reg imx378_regs[] = {
++	{0x3e35, 0x01},
++	{0x4421, 0x08},
++	{0x3ff9, 0x00},
++};
++
++static const struct imx477_compatible_data imx378_compatible = {
++	.chip_id = IMX378_CHIP_ID,
++	.extra_regs = {
++		.num_of_regs = ARRAY_SIZE(imx378_regs),
++		.regs = imx378_regs
++	}
++};
++
++static const struct of_device_id imx477_dt_ids[] = {
++	{ .compatible = "sony,imx477", .data = &imx477_compatible },
++	{ .compatible = "sony,imx378", .data = &imx378_compatible },
++	{ /* sentinel */ }
++};
++
+ static int imx477_probe(struct i2c_client *client)
+ {
+ 	struct device *dev = &client->dev;
+ 	struct imx477 *imx477;
++	const struct of_device_id *match;
+ 	int ret;
+ 
+ 	imx477 = devm_kzalloc(&client->dev, sizeof(*imx477), GFP_KERNEL);
+@@ -2090,6 +2138,12 @@ static int imx477_probe(struct i2c_clien
+ 
+ 	v4l2_i2c_subdev_init(&imx477->sd, client, &imx477_subdev_ops);
+ 
++	match = of_match_device(imx477_dt_ids, dev);
++	if (!match)
++		return -ENODEV;
++	imx477->compatible_data =
++		(const struct imx477_compatible_data *)match->data;
++
+ 	/* Check the hardware configuration in device tree */
+ 	if (imx477_check_hwcfg(dev))
+ 		return -EINVAL;
+@@ -2126,7 +2180,7 @@ static int imx477_probe(struct i2c_clien
+ 	if (ret)
+ 		return ret;
+ 
+-	ret = imx477_identify_module(imx477);
++	ret = imx477_identify_module(imx477, imx477->compatible_data->chip_id);
+ 	if (ret)
+ 		goto error_power_off;
+ 
+@@ -2198,10 +2252,6 @@ static int imx477_remove(struct i2c_clie
+ 	return 0;
+ }
+ 
+-static const struct of_device_id imx477_dt_ids[] = {
+-	{ .compatible = "sony,imx477" },
+-	{ /* sentinel */ }
+-};
+ MODULE_DEVICE_TABLE(of, imx477_dt_ids);
+ 
+ static const struct dev_pm_ops imx477_pm_ops = {