175 lines
4.9 KiB
Diff
175 lines
4.9 KiB
Diff
--- a/arch/arm/mach-pxa/gumstix.c
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+++ b/arch/arm/mach-pxa/gumstix.c
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@@ -25,6 +25,7 @@
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#include <asm/arch/udc.h>
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#include <asm/arch/mmc.h>
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#include <asm/arch/pxa-regs.h>
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+#include <asm/arch/pxafb.h>
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#include <asm/arch/gumstix.h>
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#include "generic.h"
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@@ -90,6 +91,89 @@ static struct platform_device gum_audio_
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.id = -1,
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};
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+
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+#if defined(CONFIG_FB_PXA_SHARP_LQ043_PSP) || defined(CONFIG_FB_PXA_SAMSUNG_LTE430WQ_F0C)
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+static void gumstix_lcd_backlight(int on_or_off)
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+{
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+ if(on_or_off)
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+ {
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+ pxa_gpio_mode(17 | GPIO_IN);
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+ } else {
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+ GPCR(17) = GPIO_bit(17);
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+ pxa_gpio_mode(17 | GPIO_OUT);
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+ GPCR(17) = GPIO_bit(17);
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+ }
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+}
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+#endif
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+
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+
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+#ifdef CONFIG_FB_PXA_ALPS_CDOLLAR
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+static struct pxafb_mode_info gumstix_fb_mode = {
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+ .pixclock = 300000,
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+ .xres = 240,
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+ .yres = 320,
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+ .bpp = 16,
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+ .hsync_len = 2,
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+ .left_margin = 1,
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+ .right_margin = 1,
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+ .vsync_len = 3,
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+ .upper_margin = 0,
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+ .lower_margin = 0,
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+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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+};
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+
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+static struct pxafb_mach_info gumstix_fb_info = {
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+ .modes = &gumstix_fb_mode,
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+ .num_modes = 1,
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+ .lccr0 = LCCR0_Pas | LCCR0_Sngl | LCCR0_Color,
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+ .lccr3 = 0,
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+};
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+#elif defined(CONFIG_FB_PXA_SHARP_LQ043_PSP)
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+static struct pxafb_mode_info gumstix_fb_mode = {
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+ .pixclock = 110000,
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+ .xres = 480,
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+ .yres = 272,
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+ .bpp = 16,
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+ .hsync_len = 41,
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+ .left_margin = 2,
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+ .right_margin = 2,
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+ .vsync_len = 10,
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+ .upper_margin = 2,
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+ .lower_margin = 2,
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+ .sync = 0, // Hsync and Vsync both active low
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+};
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+
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+static struct pxafb_mach_info gumstix_fb_info = {
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+ .modes = &gumstix_fb_mode,
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+ .num_modes = 1,
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+ .lccr0 = LCCR0_Act | LCCR0_Sngl | LCCR0_Color,
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+ .lccr3 = LCCR3_OutEnH | LCCR3_PixFlEdg | (3 << 30),
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+ .pxafb_backlight_power = &gumstix_lcd_backlight,
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+};
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+#elif defined(CONFIG_FB_PXA_SAMSUNG_LTE430WQ_F0C)
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+static struct pxafb_mode_info gumstix_fb_mode = {
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+ .pixclock = 108696, // 9.2MHz typical DOTCLK from datasheet
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+ .xres = 480,
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+ .hsync_len = 41, // HLW from datasheet: 41 typ
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+ .left_margin = 4, // HBP - HLW from datasheet: 45 - 41 = 4
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+ .right_margin = 8, // HFP from datasheet: 8 typ
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+ .yres = 272,
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+ .vsync_len = 10, // VLW from datasheet: 10 typ
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+ .upper_margin = 2, // VBP - VLW from datasheet: 12 - 10 = 2
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+ .lower_margin = 4, // VFP from datasheet: 4 typ
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+ .bpp = 16,
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+ .sync = 0, // Hsync and Vsync both active low
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+};
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+
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+static struct pxafb_mach_info gumstix_fb_info = {
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+ .modes = &gumstix_fb_mode,
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+ .num_modes = 1,
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+ .lccr0 = LCCR0_Act | LCCR0_Sngl | LCCR0_Color,
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+ .lccr3 = LCCR3_OutEnH | LCCR3_PixFlEdg | (3 << 30),
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+ .pxafb_backlight_power = &gumstix_lcd_backlight,
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+};
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+#endif
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+
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static struct platform_device *devices[] __initdata = {
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&gum_audio_device,
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};
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@@ -98,6 +182,9 @@ static void __init gumstix_init(void)
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{
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pxa_set_mci_info(&gumstix_mci_platform_data);
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pxa_set_udc_info(&gumstix_udc_info);
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+#if defined(CONFIG_FB_PXA_ALPS_CDOLLAR) | defined(CONFIG_FB_PXA_SHARP_LQ043_PSP) | defined(CONFIG_FB_PXA_SAMSUNG_LTE430WQ_F0C)
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+ set_pxa_fb_info(&gumstix_fb_info);
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+#endif
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(void) platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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--- a/drivers/video/Kconfig
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+++ b/drivers/video/Kconfig
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@@ -1495,6 +1495,37 @@ config FB_PXA
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If unsure, say N.
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+choice
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+ depends on FB_PXA
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+ prompt "LCD Panel"
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+ default FB_PXA_SAMSUNG_LTE430WQ_F0C
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+
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+config FB_PXA_ALPS_CDOLLAR
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+ boolean "Chris Dollar's ALPS screen"
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+ ---help---
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+ Enable definitions (over-ridable on the kernel command line if
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+ "PXA LCD command line parameters" is also selected) for an ALPS
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+ screen which Chris Dollar uses
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+
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+config FB_PXA_SHARP_LQ043_PSP
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+ boolean "SHARP LQ043... series"
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+ ---help---
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+ Enable definitions (over-ridable on the kernel command line if
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+ "PXA LCD command line parameters" is also selected) for a SHARP
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+ LQ043... screen, such as the one used by the PSP. These screens are
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+ the ones normally sold by gumstix with its boards.
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+
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+config FB_PXA_SAMSUNG_LTE430WQ_F0C
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+ boolean "Samsung LTE430WQ-F0C (standard gumstix LCD)"
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+ ---help---
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+ Enable definitions for a Samsung LTE430WQ-F0C LCD panel, such as the ones resold
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+ by gumstix for use with their "LCD-Ready" boards.
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+
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+config FB_PXA_NONEOFTHEABOVE
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+ boolean "None of the above"
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+
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+endchoice
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+
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config FB_PXA_PARAMETERS
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bool "PXA LCD command line parameters"
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default n
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--- a/drivers/video/pxafb.c
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+++ b/drivers/video/pxafb.c
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@@ -22,6 +22,7 @@
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*
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*/
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+#include <linux/autoconf.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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@@ -789,7 +790,13 @@ static void pxafb_setup_gpio(struct pxaf
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pxa_gpio_mode(GPIO74_LCD_FCLK_MD);
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pxa_gpio_mode(GPIO75_LCD_LCLK_MD);
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pxa_gpio_mode(GPIO76_LCD_PCLK_MD);
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+#ifdef CONFIG_FB_PXA_SHARP_LQ043_PSP
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+ /* DISP must be always high while screen is on */
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+ pxa_gpio_mode(GPIO77_LCD_ACBIAS | GPIO_OUT);
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+ GPSR(GPIO77_LCD_ACBIAS) = GPIO_bit(GPIO77_LCD_ACBIAS);
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+#else
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pxa_gpio_mode(GPIO77_LCD_ACBIAS_MD);
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+#endif
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}
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static void pxafb_enable_controller(struct pxafb_info *fbi)
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