diff options
| author | Frank Li <Frank.Li@freescale.com> | 2009-10-15 13:56:52 +0800 |
|---|---|---|
| committer | Alejandro Gonzalez <alex.gonzalez@digi.com> | 2010-02-12 17:19:23 +0100 |
| commit | 41e8dc1dd74f4c15f224f672671cd5a46fe8c943 (patch) | |
| tree | f0cc60accf2de47e04b2069bcdbf99c5ba0a7b21 /arch/arm/mach-stmp378x | |
| parent | 15d31ce87004575dbf290a454011bca40fbeeb69 (diff) | |
ENGR00117307 iMX23 reduce LCD driver strength to 8mA
Changing the LCD pin drive strengths to 8mA reduces
the amount of overshoot in half (15% and 50%) and
does not significantly change the rise and fall time
characteristics of the digital LCD signals
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Diffstat (limited to 'arch/arm/mach-stmp378x')
| -rw-r--r-- | arch/arm/mach-stmp378x/stmp378x_devb.c | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/arch/arm/mach-stmp378x/stmp378x_devb.c b/arch/arm/mach-stmp378x/stmp378x_devb.c index 201c679ae427..5f107ce78743 100644 --- a/arch/arm/mach-stmp378x/stmp378x_devb.c +++ b/arch/arm/mach-stmp378x/stmp378x_devb.c @@ -267,35 +267,35 @@ static struct gpmi_platform_data gpmi_partitions = { }; static struct pin_desc lcd_hx8238a_desc[] = { - { PINID_LCD_D00, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D01, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D02, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D03, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D04, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D05, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D06, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D07, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D08, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D09, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D10, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D11, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D12, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D13, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D14, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D15, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D16, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_D17, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_RESET, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_VSYNC, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_HSYNC, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_ENABLE, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_LCD_DOTCK, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 }, - { PINID_GPMI_D13, PIN_FUN2, PIN_12MA, PIN_3_3V, 0 }, - { PINID_GPMI_D12, PIN_FUN2, PIN_12MA, PIN_3_3V, 0 }, - { PINID_GPMI_D11, PIN_FUN2, PIN_12MA, PIN_3_3V, 0 }, - { PINID_GPMI_D10, PIN_FUN2, PIN_12MA, PIN_3_3V, 0 }, - { PINID_GPMI_D09, PIN_FUN2, PIN_12MA, PIN_3_3V, 0 }, - { PINID_GPMI_D08, PIN_FUN2, PIN_12MA, PIN_3_3V, 0 }, + { PINID_LCD_D00, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D01, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D02, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D03, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D04, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D05, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D06, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D07, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D08, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D09, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D10, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D11, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D12, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D13, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D14, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D15, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D16, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_D17, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_RESET, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_VSYNC, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_HSYNC, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_ENABLE, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_LCD_DOTCK, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 }, + { PINID_GPMI_D13, PIN_FUN2, PIN_8MA, PIN_3_3V, 0 }, + { PINID_GPMI_D12, PIN_FUN2, PIN_8MA, PIN_3_3V, 0 }, + { PINID_GPMI_D11, PIN_FUN2, PIN_8MA, PIN_3_3V, 0 }, + { PINID_GPMI_D10, PIN_FUN2, PIN_8MA, PIN_3_3V, 0 }, + { PINID_GPMI_D09, PIN_FUN2, PIN_8MA, PIN_3_3V, 0 }, + { PINID_GPMI_D08, PIN_FUN2, PIN_8MA, PIN_3_3V, 0 }, }; struct pin_group lcd_pins = { |