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authorDave Airlie <airlied@redhat.com>2017-08-15 09:16:58 +0300
committerDave Airlie <airlied@redhat.com>2017-08-15 09:16:58 +0300
commit0c697fafc66830ca7d5dc19123a1d0641deaa1f6 (patch)
treec56336719ca8de16f78ada78e606dffa471e47d5 /drivers/video/fbdev/efifb.c
parent09ef2378dc42339f3871584dc26d27da220277cb (diff)
parentef954844c7ace62f773f4f23e28d2d915adc419f (diff)
downloadlinux-0c697fafc66830ca7d5dc19123a1d0641deaa1f6.tar.xz
Backmerge tag 'v4.13-rc5' into drm-next
Linux 4.13-rc5 There's a really nasty nouveau collision, hopefully someone can take a look once I pushed this out.
Diffstat (limited to 'drivers/video/fbdev/efifb.c')
-rw-r--r--drivers/video/fbdev/efifb.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index ff01bed7112f..1e784adb89b1 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -17,6 +17,7 @@
#include <asm/efi.h>
static bool request_mem_succeeded = false;
+static bool nowc = false;
static struct fb_var_screeninfo efifb_defined = {
.activate = FB_ACTIVATE_NOW,
@@ -99,6 +100,8 @@ static int efifb_setup(char *options)
screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0);
else if (!strncmp(this_opt, "width:", 6))
screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);
+ else if (!strcmp(this_opt, "nowc"))
+ nowc = true;
}
}
@@ -255,7 +258,10 @@ static int efifb_probe(struct platform_device *dev)
info->apertures->ranges[0].base = efifb_fix.smem_start;
info->apertures->ranges[0].size = size_remap;
- info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
+ if (nowc)
+ info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
+ else
+ info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
if (!info->screen_base) {
pr_err("efifb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
efifb_fix.smem_len, efifb_fix.smem_start);