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Commit 09e647d3 authored by Eric Miao's avatar Eric Miao
Browse files

[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: default avatarEric Miao <eric.miao@marvell.com>
parent 9587319b

drivers/video/pxafb.c

+0 −54
Original line number Diff line number Diff line
@@ -50,7 +50,6 @@ 
#include <asm/irq.h>

#include <asm/div64.h>

#include <mach/pxa-regs.h>

#include <mach/pxa2xx-gpio.h>

#include <mach/bitfield.h>

#include <mach/pxafb.h>
@@ -986,57 +985,6 @@ static inline void __pxafb_lcd_power(struct pxafb_info *fbi, int on) 
		fbi->lcd_power(on, &fbi->fb.var);

}



static void pxafb_setup_gpio(struct pxafb_info *fbi)

{

	int gpio, ldd_bits;

	unsigned int lccr0 = fbi->lccr0;



	/*

	 * setup is based on type of panel supported

	 */



	/* 4 bit interface */

	if ((lccr0 & LCCR0_CMS) == LCCR0_Mono &&

	    (lccr0 & LCCR0_SDS) == LCCR0_Sngl &&

	    (lccr0 & LCCR0_DPD) == LCCR0_4PixMono)

		ldd_bits = 4;



	/* 8 bit interface */

	else if (((lccr0 & LCCR0_CMS) == LCCR0_Mono &&

		  ((lccr0 & LCCR0_SDS) == LCCR0_Dual ||

		   (lccr0 & LCCR0_DPD) == LCCR0_8PixMono)) ||

		 ((lccr0 & LCCR0_CMS) == LCCR0_Color &&

		  (lccr0 & LCCR0_PAS) == LCCR0_Pas &&

		  (lccr0 & LCCR0_SDS) == LCCR0_Sngl))

		ldd_bits = 8;



	/* 16 bit interface */

	else if ((lccr0 & LCCR0_CMS) == LCCR0_Color &&

		 ((lccr0 & LCCR0_SDS) == LCCR0_Dual ||

		  (lccr0 & LCCR0_PAS) == LCCR0_Act))

		ldd_bits = 16;



	else {

		printk(KERN_ERR "pxafb_setup_gpio: unable to determine "

			       "bits per pixel\n");

		return;

	}



	for (gpio = 58; ldd_bits; gpio++, ldd_bits--)

		pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT);

	/* 18 bit interface */

	if (fbi->fb.var.bits_per_pixel > 16) {

		pxa_gpio_mode(86 | GPIO_ALT_FN_2_OUT);

		pxa_gpio_mode(87 | GPIO_ALT_FN_2_OUT);

	}

	pxa_gpio_mode(GPIO74_LCD_FCLK_MD);

	pxa_gpio_mode(GPIO75_LCD_LCLK_MD);

	pxa_gpio_mode(GPIO76_LCD_PCLK_MD);



	if ((lccr0 & LCCR0_PAS) == 0)

		pxa_gpio_mode(GPIO77_LCD_ACBIAS_MD);

}



static void pxafb_enable_controller(struct pxafb_info *fbi)

{

	pr_debug("pxafb: Enabling LCD controller\n");
@@ -1179,7 +1127,6 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) 
		if (old_state == C_ENABLE) {

			__pxafb_lcd_power(fbi, 0);

			pxafb_disable_controller(fbi);

			pxafb_setup_gpio(fbi);

			pxafb_enable_controller(fbi);

			__pxafb_lcd_power(fbi, 1);

		}
@@ -1202,7 +1149,6 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) 
		 */

		if (old_state != C_ENABLE) {

			fbi->state = C_ENABLE;

			pxafb_setup_gpio(fbi);

			pxafb_enable_controller(fbi);

			__pxafb_lcd_power(fbi, 1);

			__pxafb_backlight_power(fbi, 1);