linux: update to v4.2.4-openpower1
- Rebased on upstream stable release v4.2.4
- Upstream commit "8c24d6d7b09d usb: xhci: stop everything on the first
call to xhci_stop" means that our patch "xhci: do not halt the
secondary HCD" is no longer required
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/linux-0003-drm-ast-Default-to-8bpp-on-big-endian.patch b/openpower/linux/linux-0003-drm-ast-Default-to-8bpp-on-big-endian.patch
new file mode 100644
index 0000000..3427346
--- /dev/null
+++ b/openpower/linux/linux-0003-drm-ast-Default-to-8bpp-on-big-endian.patch
@@ -0,0 +1,45 @@
+From 3974f00104e399e91a0ab0f4b0f5e26e1f5e2ff9 Mon Sep 17 00:00:00 2001
+From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+Date: Fri, 31 Oct 2014 15:06:38 +1100
+Subject: [PATCH 03/17] drm/ast: Default to 8bpp on big endian
+
+This chip is LE only (some versions support HW swappers but not
+the latest and the driver doesn't anyway).
+
+I tried using the "foreign endian" fb flag but it appears to be
+busted, so instead, default to endian-neutral 8bpp for BE.
+
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+Signed-off-by: Joel Stanley <joel@jms.id.au>
+---
+ drivers/gpu/drm/ast/ast_fb.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c
+index ff68eef..c532c69 100644
+--- a/drivers/gpu/drm/ast/ast_fb.c
++++ b/drivers/gpu/drm/ast/ast_fb.c
+@@ -345,7 +345,20 @@ int ast_fbdev_init(struct drm_device *dev)
+ /* disable all the possible outputs/crtcs before entering KMS mode */
+ drm_helper_disable_unused_functions(dev);
+
++ /*
++ * This chip is LE only (some versions support HW swappers but not
++ * the latest and the driver doesn't anyway).
++ *
++ * I tried using the "foreign endian" fb flag but it appears to be
++ * busted, so instead, default to endian-neutral 8bpp for BE.
++ *
++ * (and it's faster !)
++ */
++#if defined(__BIG_ENDIAN)
++ ret = drm_fb_helper_initial_config(&afbdev->helper, 8);
++#else
+ ret = drm_fb_helper_initial_config(&afbdev->helper, 32);
++#endif
+ if (ret)
+ goto fini;
+
+--
+2.5.0
+