bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

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

1 files changed, 32 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0100-drm-vc4-Add-FB-modifier-support-to-firmwarekms.patch b/target/linux/bcm27xx/patches-5.4/950-0100-drm-vc4-Add-FB-modifier-support-to-firmwarekms.patch
new file mode 100644
index 0000000000..11fb0d6fd8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0100-drm-vc4-Add-FB-modifier-support-to-firmwarekms.patch
@@ -0,0 +1,32 @@
+From 427c7c3d63a165ae3d5da45cd2afbe68cb4a34a9 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Wed, 7 Jun 2017 14:39:49 -0700
+Subject: [PATCH] drm/vc4: Add FB modifier support to firmwarekms.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+(cherry picked from commit 11752d73488e08aaeb65fe8289a9c016acde26c2)
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -17,6 +17,7 @@
+ #include "drm/drm_atomic_helper.h"
+ #include "drm/drm_plane_helper.h"
+ #include "drm/drm_crtc_helper.h"
++#include "drm/drm_fourcc.h"
+ #include "linux/clk.h"
+ #include "linux/debugfs.h"
+ #include "drm/drm_fb_cma_helper.h"
+@@ -134,6 +135,10 @@ static void vc4_primary_plane_atomic_upd
+ 	fbinfo->yoffset = state->crtc_y;
+ 	fbinfo->base = bo->paddr + fb->offsets[0];
+ 	fbinfo->pitch = fb->pitches[0];
++
++	if (fb->modifier == DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED)
++		fbinfo->bpp |= BIT(31);
++
+ 	/* A bug in the firmware makes it so that if the fb->base is
+ 	 * set to nonzero, the configured pitch gets overwritten with
+ 	 * the previous pitch.  So, to get the configured pitch