renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-18 18:23:53 +08:00
Code

[ARM] JIVE: Add SPI bus definitions for LCD controller

Browse Source 
Add the definitions for the VGG2432A4 intelligent
LCD display conneected via an GPIO-based SPI bus
on the Logitech Jive.

Signed-of-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks 2008-07-03 11:24:32 +01:00
parent 0f99263cda
commit a2ed406515
1 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
arch/arm/mach-s3c2412/mach-jive.c
View File

@ -20,6 +20,8 @@
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@ -34,6 +36,7 @@
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-mem.h>
#include <asm/arch/regs-lcd.h>
#include <asm/arch/spi-gpio.h>
#include <asm/arch/fb.h>
#include <asm/mach-types.h>
@ -346,12 +349,48 @@ struct s3c2410fb_mach_info jive_lcd_config = {
S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
};
/* LCD SPI support */
static void jive_lcd_spi_chipselect(struct s3c2410_spigpio_info *spi, int cs)
{
s3c2410_gpio_setpin(S3C2410_GPB7, cs ? 0 : 1);
}
static struct s3c2410_spigpio_info jive_lcd_spi = {
.bus_num = 1,
.pin_clk = S3C2410_GPG8,
.pin_mosi = S3C2410_GPB8,
.chip_select = jive_lcd_spi_chipselect,
};
static struct platform_device jive_device_lcdspi = {
.name = "s3c24xx-spi-gpio",
.id = 1,
.num_resources = 0,
.dev.platform_data = &jive_lcd_spi,
};
/* JIVE SPI devices. */
static struct spi_board_info __initdata jive_spi_devs[] = {
[0] = {
.modalias = "VGG2432A4",
.bus_num = 1,
.chip_select = 0,
.mode = SPI_MODE_3, /* CPOL=1, CPHA=1 */
.max_speed_hz = 100000,
},
};
static struct platform_device *jive_devices[] __initdata = {
&s3c_device_usb,
&s3c_device_rtc,
&s3c_device_wdt,
&s3c_device_i2c,
&s3c_device_lcd,
&jive_device_lcdspi,
&s3c_device_nand,
&s3c_device_usbgadget,
};
@ -502,6 +541,20 @@ static void __init jive_machine_init(void)
s3c_device_nand.dev.platform_data = &jive_nand_info;
/* initialise the spi */
s3c2410_gpio_setpin(S3C2410_GPG13, 0);
s3c2410_gpio_cfgpin(S3C2410_GPG13, S3C2410_GPIO_OUTPUT);
s3c2410_gpio_setpin(S3C2410_GPB7, 1);
s3c2410_gpio_cfgpin(S3C2410_GPB7, S3C2410_GPIO_OUTPUT);
s3c2410_gpio_setpin(S3C2410_GPB6, 0);
s3c2410_gpio_cfgpin(S3C2410_GPB6, S3C2410_GPIO_OUTPUT);
s3c2410_gpio_setpin(S3C2410_GPG8, 1);
s3c2410_gpio_cfgpin(S3C2410_GPG8, S3C2410_GPIO_OUTPUT);
/* Turn off suspend on both USB ports, and switch the
* selectable USB port to USB device mode. */
@ -512,6 +565,8 @@ static void __init jive_machine_init(void)
s3c24xx_udc_set_platdata(&jive_udc_cfg);
s3c24xx_fb_set_platdata(&jive_lcd_config);
spi_register_board_info(jive_spi_devs, ARRAY_SIZE(jive_spi_devs));
platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
}