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, 71 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0462-drm-vc4-Add-DRM_FORMAT_P030-support-to-firmware-kms.patch b/target/linux/bcm27xx/patches-5.4/950-0462-drm-vc4-Add-DRM_FORMAT_P030-support-to-firmware-kms.patch
new file mode 100644
index 0000000000..f6264ff04a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0462-drm-vc4-Add-DRM_FORMAT_P030-support-to-firmware-kms.patch
@@ -0,0 +1,71 @@
+From 531d3d5c89825bade52f4257d264bbb06775a6fa Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 24 Jan 2020 14:24:33 +0000
+Subject: [PATCH] drm/vc4: Add DRM_FORMAT_P030 support to firmware-kms
+
+Adds support for this format which is 3 10bit samples packed into
+4 bytes, as used by the HEVC codec block.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 21 ++++++++++++++++++++-
+ drivers/gpu/drm/vc4/vc_image_types.h   |  4 ++++
+ 2 files changed, 24 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -216,6 +216,10 @@ static const struct vc_image_format {
+ 		.vc_image = VC_IMAGE_YUV420SP,
+ 		.is_vu = 1,
+ 	},
++	{
++		.drm = DRM_FORMAT_P030,
++		.vc_image = VC_IMAGE_YUV10COL,
++	},
+ };
+ 
+ static const struct vc_image_format *vc4_get_vc_image_fmt(u32 drm_format)
+@@ -622,7 +626,15 @@ static int vc4_plane_to_mb(struct drm_pl
+ 		}
+ 		break;
+ 	case DRM_FORMAT_MOD_BROADCOM_SAND128:
+-		mb->plane.vc_image_type = VC_IMAGE_YUV_UV;
++		switch (mb->plane.vc_image_type) {
++		case VC_IMAGE_YUV420SP:
++			mb->plane.vc_image_type = VC_IMAGE_YUV_UV;
++			break;
++		/* VC_IMAGE_YUV10COL could be included in here, but it is only
++		 * valid as a SAND128 format, so the table at the top will have
++		 * already set the correct format.
++		 */
++		}
+ 		/* Note that the column pitch is passed across in lines, not
+ 		 * bytes.
+ 		 */
+@@ -707,6 +719,13 @@ static bool vc4_fkms_format_mod_supporte
+ 		case DRM_FORMAT_MOD_BROADCOM_SAND128:
+ 			return true;
+ 		default:
++			return false;
++		}
++	case DRM_FORMAT_P030:
++		switch (fourcc_mod_broadcom_mod(modifier)) {
++		case DRM_FORMAT_MOD_BROADCOM_SAND128:
++			return true;
++		default:
+ 			return false;
+ 		}
+ 	case DRM_FORMAT_NV21:
+--- a/drivers/gpu/drm/vc4/vc_image_types.h
++++ b/drivers/gpu/drm/vc4/vc_image_types.h
+@@ -139,6 +139,10 @@ enum {
+ 	VC_IMAGE_YUV_UV_16,
+ 	/* YUV4:2:0 with U,V in side-by-side format */
+ 	VC_IMAGE_YUV420_S,
++	/* 10-bit YUV 420 column image format */
++	VC_IMAGE_YUV10COL,
++	/* 32-bpp, 10-bit R/G/B, 2-bit Alpha */
++	VC_IMAGE_RGBA1010102,
+ 
+ 	VC_IMAGE_MAX,     /* bounds for error checking */
+ 	VC_IMAGE_FORCE_ENUM_16BIT = 0xffff,