brcm2708: rename all patches from raspberrypi git tree to use 950 prefix

Right now all brcm2708 patches are extracted from the non-mainline
raspberrypi/linux git tree. Many of them are hacks and/or are unneeded
in LEDE. Raspberry Pi is getting better and better mainline support so
it would be nice to finally start maintaining patches in a cleaner way:
1) Backport patches accepted in upstream tree
2) Start using upstream drivers
3) Pick only these patches that are needed for more complete support

Handling above tasks requires grouping patches - ideally using the same
prefixes as generic ones. It means we should rename existing patches to
use some high prefix. This will allow e.g. use 0xx for backported code.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 55 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.9/950-0163-drm-vc4-Add-support-for-rendering-with-ETC1-textures.patch b/target/linux/brcm2708/patches-4.9/950-0163-drm-vc4-Add-support-for-rendering-with-ETC1-textures.patch
new file mode 100644
index 0000000000..2b81578768
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/950-0163-drm-vc4-Add-support-for-rendering-with-ETC1-textures.patch
@@ -0,0 +1,55 @@
+From 4b1b99ebbada744ef72af56b022492609feb9bba Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 3 Nov 2016 18:53:10 -0700
+Subject: [PATCH] drm/vc4: Add support for rendering with ETC1 textures.
+
+The validation for it ends up being quite simple, but I hadn't got
+around to it before merging the driver.  For backwards compatibility,
+we also need to add a flag so that the userspace GL driver can easily
+tell if the kernel will allow ETC1 textures (on an old kernel, it will
+continue to convert to RGBA8)
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+(cherry picked from commit 7154d76fedf549607afbc0d13db9aaf02da5cebf)
+---
+ drivers/gpu/drm/vc4/vc4_drv.c      | 1 +
+ drivers/gpu/drm/vc4/vc4_validate.c | 7 +++++++
+ include/uapi/drm/vc4_drm.h         | 1 +
+ 3 files changed, 9 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -78,6 +78,7 @@ static int vc4_get_param_ioctl(struct dr
+ 		pm_runtime_put(&vc4->v3d->pdev->dev);
+ 		break;
+ 	case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
++	case DRM_VC4_PARAM_SUPPORTS_ETC1:
+ 		args->value = true;
+ 		break;
+ 	default:
+--- a/drivers/gpu/drm/vc4/vc4_validate.c
++++ b/drivers/gpu/drm/vc4/vc4_validate.c
+@@ -644,6 +644,13 @@ reloc_tex(struct vc4_exec_info *exec,
+ 		cpp = 1;
+ 		break;
+ 	case VC4_TEXTURE_TYPE_ETC1:
++		/* ETC1 is arranged as 64-bit blocks, where each block is 4x4
++		 * pixels.
++		 */
++		cpp = 8;
++		width = (width + 3) >> 2;
++		height = (height + 3) >> 2;
++		break;
+ 	case VC4_TEXTURE_TYPE_BW1:
+ 	case VC4_TEXTURE_TYPE_A4:
+ 	case VC4_TEXTURE_TYPE_A1:
+--- a/include/uapi/drm/vc4_drm.h
++++ b/include/uapi/drm/vc4_drm.h
+@@ -286,6 +286,7 @@ struct drm_vc4_get_hang_state {
+ #define DRM_VC4_PARAM_V3D_IDENT1		1
+ #define DRM_VC4_PARAM_V3D_IDENT2		2
+ #define DRM_VC4_PARAM_SUPPORTS_BRANCHES		3
++#define DRM_VC4_PARAM_SUPPORTS_ETC1		4
+ 
+ struct drm_vc4_get_param {
+ 	__u32 param;