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authorLinus Torvalds <torvalds@linux-foundation.org>2013-12-09 19:21:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-09 19:21:39 -0800
commit17b2112f332db7c2bac56926c9e627807bce3615 (patch)
tree72f8ad178eece0588e2b396d0de76ef14ebe616e /drivers/video
parent78fd82238d0e5716578c326404184a27ba67fd6e (diff)
parente641eb03ab2b0f065fa5e64b4202fb5b0441b427 (diff)
downloadlinux-17b2112f332db7c2bac56926c9e627807bce3615.tar.bz2
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt: "Here are a handful of powerpc fixes for 3.13. The patches are reasonably trivial and self contained. Note the offb patches outside of arch/powerpc, they are LE fixes for our open-firmware 'dumb' framebuffer" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix up the kdump base cap to 128M powernv: Fix VFIO support with PHB3 powerpc/52xx: Re-enable bestcomm driver in defconfigs powerpc/pasemi: Turn on devtmpfs in defconfig offb: Add palette hack for little endian offb: Little endian fixes powerpc: Fix PTE page address mismatch in pgtable ctor/dtor powerpc/44x: Fix ocm_block allocation powerpc: Fix build break with PPC_EARLY_DEBUG_BOOTX=y powerpc/512x: dts: remove misplaced IRQ spec from 'soc' node
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/offb.c29
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index 9dbea2223401..7d44d669d5b6 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -91,6 +91,15 @@ extern boot_infos_t *boot_infos;
#define AVIVO_DC_LUTB_WHITE_OFFSET_GREEN 0x6cd4
#define AVIVO_DC_LUTB_WHITE_OFFSET_RED 0x6cd8
+#define FB_RIGHT_POS(p, bpp) (fb_be_math(p) ? 0 : (32 - (bpp)))
+
+static inline u32 offb_cmap_byteswap(struct fb_info *info, u32 value)
+{
+ u32 bpp = info->var.bits_per_pixel;
+
+ return cpu_to_be32(value) >> FB_RIGHT_POS(info, bpp);
+}
+
/*
* Set a single color register. The values supplied are already
* rounded down to the hardware's capabilities (according to the
@@ -120,7 +129,7 @@ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
mask <<= info->var.transp.offset;
value |= mask;
}
- pal[regno] = value;
+ pal[regno] = offb_cmap_byteswap(info, value);
return 0;
}
@@ -301,7 +310,7 @@ static struct fb_ops offb_ops = {
static void __iomem *offb_map_reg(struct device_node *np, int index,
unsigned long offset, unsigned long size)
{
- const u32 *addrp;
+ const __be32 *addrp;
u64 asize, taddr;
unsigned int flags;
@@ -369,7 +378,11 @@ static void offb_init_palette_hacks(struct fb_info *info, struct device_node *dp
}
of_node_put(pciparent);
} else if (dp && of_device_is_compatible(dp, "qemu,std-vga")) {
- const u32 io_of_addr[3] = { 0x01000000, 0x0, 0x0 };
+#ifdef __BIG_ENDIAN
+ const __be32 io_of_addr[3] = { 0x01000000, 0x0, 0x0 };
+#else
+ const __be32 io_of_addr[3] = { 0x00000001, 0x0, 0x0 };
+#endif
u64 io_addr = of_translate_address(dp, io_of_addr);
if (io_addr != OF_BAD_ADDR) {
par->cmap_adr = ioremap(io_addr + 0x3c8, 2);
@@ -535,7 +548,7 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node)
unsigned int flags, rsize, addr_prop = 0;
unsigned long max_size = 0;
u64 rstart, address = OF_BAD_ADDR;
- const u32 *pp, *addrp, *up;
+ const __be32 *pp, *addrp, *up;
u64 asize;
int foreign_endian = 0;
@@ -551,25 +564,25 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node)
if (pp == NULL)
pp = of_get_property(dp, "depth", &len);
if (pp && len == sizeof(u32))
- depth = *pp;
+ depth = be32_to_cpup(pp);
pp = of_get_property(dp, "linux,bootx-width", &len);
if (pp == NULL)
pp = of_get_property(dp, "width", &len);
if (pp && len == sizeof(u32))
- width = *pp;
+ width = be32_to_cpup(pp);
pp = of_get_property(dp, "linux,bootx-height", &len);
if (pp == NULL)
pp = of_get_property(dp, "height", &len);
if (pp && len == sizeof(u32))
- height = *pp;
+ height = be32_to_cpup(pp);
pp = of_get_property(dp, "linux,bootx-linebytes", &len);
if (pp == NULL)
pp = of_get_property(dp, "linebytes", &len);
if (pp && len == sizeof(u32) && (*pp != 0xffffffffu))
- pitch = *pp;
+ pitch = be32_to_cpup(pp);
else
pitch = width * ((depth + 7) / 8);