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ArmPlatformPkg: PL111Lcd: Combine two writes to LCDControl 

Currenty bit LcdPwr of the LCDControl register is enabled immediately
after setting other bits of the LCDControl register. This two write
sequence is unnecessary. This change removes this extra write by setting
LcdPwr bit along with other bits of the LcdControl register.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Girish Pathak 2018-02-14 11:52:46 +00:00 committed by Leif Lindholm
parent d1ee57e581
commit b5daabdcd8
1 changed files with 1 additions and 5 deletions
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6
ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
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@ -137,11 +137,7 @@ LcdSetMode (
// PL111_REG_LCD_CONTROL
LcdControl = PL111_CTRL_LCD_EN | PL111_CTRL_LCD_BPP (LcdBpp) |
PL111_CTRL_LCD_TFT | PL111_CTRL_BGR;
MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl);
// Turn on power to the LCD Panel
LcdControl |= PL111_CTRL_LCD_PWR;
PL111_CTRL_LCD_TFT | PL111_CTRL_LCD_PWR | PL111_CTRL_BGR;
MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl);
return EFI_SUCCESS;