From 27ec6bd89b4e4682833deaae69866e8ef254db60 Mon Sep 17 00:00:00 2001 From: Frank Li Date: Thu, 15 Oct 2009 13:56:52 +0800 Subject: 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 --- arch/arm/mach-stmp3xxx/stmp378x.c | 58 +++++++++++++++++++-------------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-stmp3xxx/stmp378x.c b/arch/arm/mach-stmp3xxx/stmp378x.c index 1cb07cdb48fb..a5d282c1519b 100644 --- a/arch/arm/mach-stmp3xxx/stmp378x.c +++ b/arch/arm/mach-stmp3xxx/stmp378x.c @@ -275,35 +275,35 @@ struct pin_group gpmi_pins = { }; 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 stmp378x_lcd_pins = { -- cgit v1.2.3