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

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>

1 files changed, 55 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2412/mach-jive.c b/arch/arm/mach-s3c2412/mach-jive.c
index b528ed93773c..ad6b942a2a8f 100644
--- a/arch/arm/mach-s3c2412/mach-jive.c
+++ b/arch/arm/mach-s3c2412/mach-jive.c
@@ -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));
 }