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authorArnd Bergmann <arnd@arndb.de>2017-09-05 09:47:26 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-09-06 08:39:55 +0200
commit67a3b63a54cbe18944191f43d644686731cf30c7 (patch)
tree7251bfe44e045528b3820d1e8a19d74027518ad9 /drivers/gpu/drm/gma500
parentff58a15a502a900c35ff2f20182249b65719d6d7 (diff)
drm: gma500: fix logic error
gcc-8 points out a condition that almost certainly doesn't do what the author had in mind: drivers/gpu/drm/gma500/mdfld_intel_display.c: In function 'mdfldWaitForPipeEnable': drivers/gpu/drm/gma500/mdfld_intel_display.c:102:37: error: bitwise comparison always evaluates to false [-Werror=tautological-compare] This changes it to a simple bit mask operation to check whether the bit is set. Fixes: 026abc333205 ("gma500: initial medfield merge") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20170905074741.435324-1-arnd@arndb.de
Diffstat (limited to 'drivers/gpu/drm/gma500')
-rw-r--r--drivers/gpu/drm/gma500/mdfld_intel_display.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/gma500/mdfld_intel_display.c b/drivers/gpu/drm/gma500/mdfld_intel_display.c
index 531e4450c000..5c066448be5b 100644
--- a/drivers/gpu/drm/gma500/mdfld_intel_display.c
+++ b/drivers/gpu/drm/gma500/mdfld_intel_display.c
@@ -99,7 +99,7 @@ void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe)
/* Wait for for the pipe enable to take effect. */
for (count = 0; count < COUNT_MAX; count++) {
temp = REG_READ(map->conf);
- if ((temp & PIPEACONF_PIPE_STATE) == 1)
+ if (temp & PIPEACONF_PIPE_STATE)
break;
}
}