This patch adds: o GPIO lines settings(HSYNC, VSYNC, VCLK and VD) for LCD. o Function to select type of LCD interface (RGB/i80)
Signed-off-by: Ajay Kumar <[email protected]> --- arch/arm/mach-s5p64x0/Kconfig | 6 +++ arch/arm/mach-s5p64x0/Makefile | 1 + arch/arm/mach-s5p64x0/include/mach/regs-gpio.h | 4 ++ arch/arm/mach-s5p64x0/setup-fb.c | 48 ++++++++++++++++++++++++ arch/arm/plat-samsung/include/plat/fb.h | 14 +++++++ 5 files changed, 73 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-s5p64x0/setup-fb.c diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig index 017af4c..2ca5ac0 100644 --- a/arch/arm/mach-s5p64x0/Kconfig +++ b/arch/arm/mach-s5p64x0/Kconfig @@ -21,6 +21,12 @@ config CPU_S5P6450 help Enable S5P6450 CPU support +config S5P64X0_SETUP_FB + bool + help + Common setup code for S5P64X0 based boards with a LCD display + through RGB interface. + config S5P64X0_SETUP_I2C1 bool help diff --git a/arch/arm/mach-s5p64x0/Makefile b/arch/arm/mach-s5p64x0/Makefile index ae6bf6f..43698c6 100644 --- a/arch/arm/mach-s5p64x0/Makefile +++ b/arch/arm/mach-s5p64x0/Makefile @@ -28,3 +28,4 @@ obj-y += dev-audio.o obj-$(CONFIG_S3C64XX_DEV_SPI) += dev-spi.o obj-$(CONFIG_S5P64X0_SETUP_I2C1) += setup-i2c1.o +obj-$(CONFIG_S5P64X0_SETUP_FB) += setup-fb.o diff --git a/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h b/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h index 0953ef6..2f07cbd 100644 --- a/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h +++ b/arch/arm/mach-s5p64x0/include/mach/regs-gpio.h @@ -34,4 +34,8 @@ #define S5P6450_GPQ_BASE (S5P_VA_GPIO + 0x0180) #define S5P6450_GPS_BASE (S5P_VA_GPIO + 0x0300) +#define S5P64X0_SPCON0 (S5P_VA_GPIO + 0x1A0) +#define S5P64X0_SPCON0_LCD_SEL_MASK (0x3 << 0) +#define S5P64X0_SPCON0_LCD_SEL_RGB (0x1 << 0) + #endif /* __ASM_ARCH_REGS_GPIO_H */ diff --git a/arch/arm/mach-s5p64x0/setup-fb.c b/arch/arm/mach-s5p64x0/setup-fb.c new file mode 100644 index 0000000..3e8ffad --- /dev/null +++ b/arch/arm/mach-s5p64x0/setup-fb.c @@ -0,0 +1,48 @@ +/* linux/arch/arm/mach-s5p64x0/setup-fb.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Base S5P64X0 GPIO setup information for LCD framebuffer + * + * GPIO settings for LCD on any other board based on s5p64x0 + * should go in this file. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/fb.h> +#include <linux/gpio.h> + +#include <plat/fb.h> +#include <plat/gpio-cfg.h> + +#include <mach/regs-clock.h> +#include <mach/regs-gpio.h> + +void s5p64x0_fb_init(int lcd_interface_type) +{ + unsigned int cfg; + + /* select TFT LCD type (RGB I/F) */ + cfg = readl(S5P64X0_SPCON0); + cfg &= ~S5P64X0_SPCON0_LCD_SEL_MASK; + cfg |= lcd_interface_type; + writel(cfg, S5P64X0_SPCON0); +} + +void s5p64x0_fb_gpio_setup_24bpp(void) +{ + unsigned int cfg; + + cfg = readl(S5P64X0_SYS_ID) & 0xf0000; + if (cfg == 0x40000) { + s3c_gpio_cfgrange_nopull(S5P6440_GPI(0), 16, S3C_GPIO_SFN(2)); + s3c_gpio_cfgrange_nopull(S5P6440_GPJ(0), 12, S3C_GPIO_SFN(2)); + } else if (cfg == 0x50000) { + s3c_gpio_cfgrange_nopull(S5P6450_GPI(0), 16, S3C_GPIO_SFN(2)); + s3c_gpio_cfgrange_nopull(S5P6450_GPJ(0), 12, S3C_GPIO_SFN(2)); + } +} diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-samsung/include/plat/fb.h index cb3ca3a..8147c59 100644 --- a/arch/arm/plat-samsung/include/plat/fb.h +++ b/arch/arm/plat-samsung/include/plat/fb.h @@ -94,4 +94,18 @@ extern void s5pc100_fb_gpio_setup_24bpp(void); */ extern void s5pv210_fb_gpio_setup_24bpp(void); +/** + * s5p64x0_fb_init() - Common setup function for LCD + * + * Select LCD I/F configuration-RGB style or i80 style + */ +extern void s5p64x0_fb_init(int lcd_interface_type); + +/** + * s5p64x0_fb_gpio_setup_24bpp() - Common GPIO setup function for LCD + * + * Initialise the GPIO for a LCD display on the RGB interface. + */ +extern void s5p64x0_fb_gpio_setup_24bpp(void); + #endif /* __PLAT_S3C_FB_H */ -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
