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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: 026abc3332
("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
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parent
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@ -99,7 +99,7 @@ void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe)
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/* Wait for for the pipe enable to take effect. */
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/* Wait for for the pipe enable to take effect. */
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for (count = 0; count < COUNT_MAX; count++) {
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for (count = 0; count < COUNT_MAX; count++) {
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temp = REG_READ(map->conf);
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temp = REG_READ(map->conf);
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if ((temp & PIPEACONF_PIPE_STATE) == 1)
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if (temp & PIPEACONF_PIPE_STATE)
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break;
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break;
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}
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}
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}
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}
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