Commit 67a3b63a authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Daniel Vetter

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: 026abc33 ("gma500: initial medfield merge")
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170905074741.435324-1-arnd@arndb.de
parent ff58a15a
...@@ -99,7 +99,7 @@ void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe) ...@@ -99,7 +99,7 @@ void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe)
/* Wait for for the pipe enable to take effect. */ /* Wait for for the pipe enable to take effect. */
for (count = 0; count < COUNT_MAX; count++) { for (count = 0; count < COUNT_MAX; count++) {
temp = REG_READ(map->conf); temp = REG_READ(map->conf);
if ((temp & PIPEACONF_PIPE_STATE) == 1) if (temp & PIPEACONF_PIPE_STATE)
break; break;
} }
} }
......
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