[edk2] [PATCH v2 05/13] ArmPlatformPkg: PL111Lcd: Replace magic number with macro

evan.lloyd@arm.com posted 13 patches 7 years ago
[edk2] [PATCH v2 05/13] ArmPlatformPkg: PL111Lcd: Replace magic number with macro
Posted by evan.lloyd@arm.com 7 years ago
From: Girish Pathak <girish.pathak at arm.com>

Minor code change, replaces magic number with macro in LCD disable.

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>
---
 ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c b/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
index 267c972bf795997f1df88b82acbaea5f75a7a00e..b236cbfcfffadd6fa7610dcae5c5bc748aac0f69 100644
--- a/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
+++ b/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
@@ -117,8 +117,7 @@ LcdSetMode (
   }
 
   // Disable the CLCD_LcdEn bit
-  LcdControl = MmioRead32 (PL111_REG_LCD_CONTROL);
-  MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl & ~1);
+  MmioAnd32 (PL111_REG_LCD_CONTROL, ~PL111_CTRL_LCD_EN);
 
   // Set Timings
   MmioWrite32 (
-- 
Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")

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Re: [edk2] [PATCH v2 05/13] ArmPlatformPkg: PL111Lcd: Replace magic number with macro
Posted by Ard Biesheuvel 7 years ago
On 22 December 2017 at 18:34,  <evan.lloyd@arm.com> wrote:
> From: Girish Pathak <girish.pathak at arm.com>
>
> Minor code change, replaces magic number with macro in LCD disable.
>
> 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: Ard Biesheuvel <ard.biesheuvel@linaro.org>

> ---
>  ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c b/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
> index 267c972bf795997f1df88b82acbaea5f75a7a00e..b236cbfcfffadd6fa7610dcae5c5bc748aac0f69 100644
> --- a/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
> +++ b/ArmPlatformPkg/Library/PL111Lcd/PL111Lcd.c
> @@ -117,8 +117,7 @@ LcdSetMode (
>    }
>
>    // Disable the CLCD_LcdEn bit
> -  LcdControl = MmioRead32 (PL111_REG_LCD_CONTROL);
> -  MmioWrite32 (PL111_REG_LCD_CONTROL, LcdControl & ~1);
> +  MmioAnd32 (PL111_REG_LCD_CONTROL, ~PL111_CTRL_LCD_EN);
>
>    // Set Timings
>    MmioWrite32 (
> --
> Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")
>
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