[PATCH] staging: sm750fb: Correctly set CLOCK_PHASE bit of display controller.

DORMANTno replies

From: Phil Turnbull <hidden>
Date: 2016-09-02 19:35:31
Subsystem: staging - silicon motion sm750 frame buffer driver, staging subsystem, the rest · Maintainers: Sudip Mukherjee, Teddy Wang, Sudip Mukherjee, Greg Kroah-Hartman, Linus Torvalds

Commit 6fba39cf32a3 ("staging: sm750fb: use BIT macro for
PANEL_DISPLAY_CTRL single-bit fields") accidentally changed the
CLOCK_PHASE logic from '|=' to '=' which clears all the previously set
bits.

Fixes: 6fba39cf32a3 ("staging: sm750fb: use BIT macro for PANEL_DISPLAY_CTRL single-bit fields")
Signed-off-by: Phil Turnbull <redacted>
---
 drivers/staging/sm750fb/ddk750_mode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index ccb4e067661a..e29d4bd5dcec 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -63,7 +63,7 @@ static unsigned long displayControlAdjust_SM750LE(mode_parameter_t *pModeParam,
 	dispControl |= (CRT_DISPLAY_CTRL_CRTSELECT | CRT_DISPLAY_CTRL_RGBBIT);
 
 	/* Set bit 14 of display controller */
-	dispControl = DISPLAY_CTRL_CLOCK_PHASE;
+	dispControl |= DISPLAY_CTRL_CLOCK_PHASE;
 
 	POKE32(CRT_DISPLAY_CTRL, dispControl);
 
-- 
2.9.0.rc2
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