bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

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

1 files changed, 83 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0832-media-i2c-imx290-Add-H-and-V-flip-controls.patch b/target/linux/bcm27xx/patches-5.4/950-0832-media-i2c-imx290-Add-H-and-V-flip-controls.patch
new file mode 100644
index 0000000000..b96807b6cd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0832-media-i2c-imx290-Add-H-and-V-flip-controls.patch
@@ -0,0 +1,83 @@
+From a6048e36f5e5d73a29d1f5096fc77286f8aa949d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Jun 2020 18:34:16 +0100
+Subject: [PATCH] media: i2c: imx290: Add H and V flip controls
+
+The sensor supports horizontal and vertical flips, so support them
+through V4L2_CID_HFLIP and V4L2_CID_VFLIP.
+
+This sensor does NOT change the Bayer order when changing the
+direction of readout, therefore no special handling is required for
+that.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 22 ++++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -34,6 +34,7 @@ enum imx290_clk_index {
+ #define IMX290_STANDBY 0x3000
+ #define IMX290_REGHOLD 0x3001
+ #define IMX290_XMSTA 0x3002
++#define IMX290_FLIP_WINMODE 0x3007
+ #define IMX290_FR_FDG_SEL 0x3009
+ #define IMX290_BLKLEVEL_LOW 0x300a
+ #define IMX290_BLKLEVEL_HIGH 0x300b
+@@ -107,6 +108,8 @@ struct imx290 {
+ 	struct v4l2_ctrl *pixel_rate;
+ 	struct v4l2_ctrl *hblank;
+ 	struct v4l2_ctrl *vblank;
++	struct v4l2_ctrl *hflip;
++	struct v4l2_ctrl *vflip;
+ 	struct v4l2_ctrl *exposure;
+ 
+ 	struct mutex lock;
+@@ -600,6 +603,7 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	struct imx290 *imx290 = container_of(ctrl->handler,
+ 					     struct imx290, ctrls);
+ 	int ret = 0;
++	u8 val;
+ 
+ 	/* V4L2 controls values will be applied only when power is already up */
+ 	if (!pm_runtime_get_if_in_use(imx290->dev))
+@@ -618,6 +622,16 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	case V4L2_CID_VBLANK:
+ 		ret = imx290_set_vmax(imx290, ctrl->val);
+ 		break;
++	case V4L2_CID_HFLIP:
++	case V4L2_CID_VFLIP:
++		/* WINMODE is in bits [6:4], so need to read-modify-write */
++		ret = imx290_read_reg(imx290, IMX290_FLIP_WINMODE, &val);
++		if (ret)
++			break;
++		val &= ~0x03;
++		val |= imx290->vflip->val | (imx290->hflip->val << 1);
++		ret = imx290_write_reg(imx290, IMX290_FLIP_WINMODE, val);
++		break;
+ 	case V4L2_CID_TEST_PATTERN:
+ 		if (ctrl->val) {
+ 			imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x00);
+@@ -924,6 +938,9 @@ static int imx290_set_stream(struct v4l2
+ 		imx290_stop_streaming(imx290);
+ 		pm_runtime_put(imx290->dev);
+ 	}
++	/* vflip and hflip cannot change during streaming */
++	__v4l2_ctrl_grab(imx290->vflip, enable);
++	__v4l2_ctrl_grab(imx290->hflip, enable);
+ 
+ unlock_and_return:
+ 
+@@ -1217,6 +1234,11 @@ static int imx290_probe(struct i2c_clien
+ 					     IMX290_EXPOSURE_STEP,
+ 					     mode->vmax - 4);
+ 
++	imx290->hflip = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					  V4L2_CID_HFLIP, 0, 1, 1, 0);
++	imx290->vflip = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					  V4L2_CID_VFLIP, 0, 1, 1, 0);
++
+ 	imx290->link_freq =
+ 		v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
+ 				       V4L2_CID_LINK_FREQ,