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authorEric Miao <eric.miao@marvell.com>2008-12-11 01:06:43 -0500
committerEric Miao <eric.miao@marvell.com>2008-12-17 09:50:12 -0500
commit09e647d30d0d8feff0aee77bd17342fbc79a3bf8 (patch)
treec5c69ea8ec3bf96fed2f424fd100ae42057c3998 /drivers
parent9587319bfe53c1ba128c6d226a655c45c36a13df (diff)
[ARM] pxafb: remove now unused pxafb_setup_gpio() and related stuffs
platform should now initialize the pin usage for the LCD controller to correctly work. Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/pxafb.c54
1 files changed, 0 insertions, 54 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index d6aa07b978ed..ab60537314fb 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -50,7 +50,6 @@
50#include <asm/irq.h> 50#include <asm/irq.h>
51#include <asm/div64.h> 51#include <asm/div64.h>
52#include <mach/pxa-regs.h> 52#include <mach/pxa-regs.h>
53#include <mach/pxa2xx-gpio.h>
54#include <mach/bitfield.h> 53#include <mach/bitfield.h>
55#include <mach/pxafb.h> 54#include <mach/pxafb.h>
56 55
@@ -986,57 +985,6 @@ static inline void __pxafb_lcd_power(struct pxafb_info *fbi, int on)
986 fbi->lcd_power(on, &fbi->fb.var); 985 fbi->lcd_power(on, &fbi->fb.var);
987} 986}
988 987
989static void pxafb_setup_gpio(struct pxafb_info *fbi)
990{
991 int gpio, ldd_bits;
992 unsigned int lccr0 = fbi->lccr0;
993
994 /*
995 * setup is based on type of panel supported
996 */
997
998 /* 4 bit interface */
999 if ((lccr0 & LCCR0_CMS) == LCCR0_Mono &&
1000 (lccr0 & LCCR0_SDS) == LCCR0_Sngl &&
1001 (lccr0 & LCCR0_DPD) == LCCR0_4PixMono)
1002 ldd_bits = 4;
1003
1004 /* 8 bit interface */
1005 else if (((lccr0 & LCCR0_CMS) == LCCR0_Mono &&
1006 ((lccr0 & LCCR0_SDS) == LCCR0_Dual ||
1007 (lccr0 & LCCR0_DPD) == LCCR0_8PixMono)) ||
1008 ((lccr0 & LCCR0_CMS) == LCCR0_Color &&
1009 (lccr0 & LCCR0_PAS) == LCCR0_Pas &&
1010 (lccr0 & LCCR0_SDS) == LCCR0_Sngl))
1011 ldd_bits = 8;
1012
1013 /* 16 bit interface */
1014 else if ((lccr0 & LCCR0_CMS) == LCCR0_Color &&
1015 ((lccr0 & LCCR0_SDS) == LCCR0_Dual ||
1016 (lccr0 & LCCR0_PAS) == LCCR0_Act))
1017 ldd_bits = 16;
1018
1019 else {
1020 printk(KERN_ERR "pxafb_setup_gpio: unable to determine "
1021 "bits per pixel\n");
1022 return;
1023 }
1024
1025 for (gpio = 58; ldd_bits; gpio++, ldd_bits--)
1026 pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT);
1027 /* 18 bit interface */
1028 if (fbi->fb.var.bits_per_pixel > 16) {
1029 pxa_gpio_mode(86 | GPIO_ALT_FN_2_OUT);
1030 pxa_gpio_mode(87 | GPIO_ALT_FN_2_OUT);
1031 }
1032 pxa_gpio_mode(GPIO74_LCD_FCLK_MD);
1033 pxa_gpio_mode(GPIO75_LCD_LCLK_MD);
1034 pxa_gpio_mode(GPIO76_LCD_PCLK_MD);
1035
1036 if ((lccr0 & LCCR0_PAS) == 0)
1037 pxa_gpio_mode(GPIO77_LCD_ACBIAS_MD);
1038}
1039
1040static void pxafb_enable_controller(struct pxafb_info *fbi) 988static void pxafb_enable_controller(struct pxafb_info *fbi)
1041{ 989{
1042 pr_debug("pxafb: Enabling LCD controller\n"); 990 pr_debug("pxafb: Enabling LCD controller\n");
@@ -1179,7 +1127,6 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state)
1179 if (old_state == C_ENABLE) { 1127 if (old_state == C_ENABLE) {
1180 __pxafb_lcd_power(fbi, 0); 1128 __pxafb_lcd_power(fbi, 0);
1181 pxafb_disable_controller(fbi); 1129 pxafb_disable_controller(fbi);
1182 pxafb_setup_gpio(fbi);
1183 pxafb_enable_controller(fbi); 1130 pxafb_enable_controller(fbi);
1184 __pxafb_lcd_power(fbi, 1); 1131 __pxafb_lcd_power(fbi, 1);
1185 } 1132 }
@@ -1202,7 +1149,6 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state)
1202 */ 1149 */
1203 if (old_state != C_ENABLE) { 1150 if (old_state != C_ENABLE) {
1204 fbi->state = C_ENABLE; 1151 fbi->state = C_ENABLE;
1205 pxafb_setup_gpio(fbi);
1206 pxafb_enable_controller(fbi); 1152 pxafb_enable_controller(fbi);
1207 __pxafb_lcd_power(fbi, 1); 1153 __pxafb_lcd_power(fbi, 1);
1208 __pxafb_backlight_power(fbi, 1); 1154 __pxafb_backlight_power(fbi, 1);