4.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Phil Turnbull <[email protected]>

commit 992f961480d23e9ef9e686e512a419efef723523 upstream.

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 <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/staging/sm750fb/ddk750_mode.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -63,7 +63,7 @@ static unsigned long displayControlAdjus
        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);
 


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