X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=arch%2Farm%2Fmach-clps711x%2Fboard-edb7211.c;h=9dfb990f08013060f72df49f81a29831a4be4cc5;hb=76d3f4c27d3c2c85e5cfe731537b6929145bf652;hp=5f928e9ed2efdfd5e665eac6f8e0224dc1c3e3a1;hpb=0f177f873975fe7ece64d334887e83e081d88dec;p=firefly-linux-kernel-4.4.55.git

diff --git a/arch/arm/mach-clps711x/board-edb7211.c b/arch/arm/mach-clps711x/board-edb7211.c
index 5f928e9ed2ef..9dfb990f0801 100644
--- a/arch/arm/mach-clps711x/board-edb7211.c
+++ b/arch/arm/mach-clps711x/board-edb7211.c
@@ -12,6 +12,7 @@
 #include <linux/delay.h>
 #include <linux/memblock.h>
 #include <linux/types.h>
+#include <linux/i2c-gpio.h>
 #include <linux/interrupt.h>
 #include <linux/backlight.h>
 #include <linux/platform_device.h>
@@ -29,6 +30,7 @@
 #include <mach/hardware.h>
 
 #include "common.h"
+#include "devices.h"
 
 #define VIDEORAM_SIZE		SZ_128K
 
@@ -36,11 +38,24 @@
 #define EDB7211_LCDEN		CLPS711X_GPIO(3, 2)
 #define EDB7211_LCDBL		CLPS711X_GPIO(3, 3)
 
+#define EDB7211_I2C_SDA		CLPS711X_GPIO(3, 4)
+#define EDB7211_I2C_SCL		CLPS711X_GPIO(3, 5)
+
 #define EDB7211_FLASH0_BASE	(CS0_PHYS_BASE)
 #define EDB7211_FLASH1_BASE	(CS1_PHYS_BASE)
+
 #define EDB7211_CS8900_BASE	(CS2_PHYS_BASE + 0x300)
 #define EDB7211_CS8900_IRQ	(IRQ_EINT3)
 
+/* The extra 8 lines of the keyboard matrix */
+#define EDB7211_EXTKBD_BASE	(CS3_PHYS_BASE)
+
+static struct i2c_gpio_platform_data edb7211_i2c_pdata __initdata = {
+	.sda_pin	= EDB7211_I2C_SDA,
+	.scl_pin	= EDB7211_I2C_SCL,
+	.scl_is_output_only = 1,
+};
+
 static struct resource edb7211_cs8900_resource[] __initdata = {
 	DEFINE_RES_MEM(EDB7211_CS8900_BASE, SZ_1K),
 	DEFINE_RES_IRQ(EDB7211_CS8900_IRQ),
@@ -94,13 +109,14 @@ static struct plat_lcd_data edb7211_lcd_power_pdata = {
 
 static void edb7211_lcd_backlight_set_intensity(int intensity)
 {
-	gpio_set_value(EDB7211_LCDBL, intensity);
+	gpio_set_value(EDB7211_LCDBL, !!intensity);
+	clps_writel((clps_readl(PMPCON) & 0xf0ff) | (intensity << 8), PMPCON);
 }
 
 static struct generic_bl_info edb7211_lcd_backlight_pdata = {
 	.name			= "lcd-backlight.0",
 	.default_intensity	= 0x01,
-	.max_intensity		= 0x01,
+	.max_intensity		= 0x0f,
 	.set_bl_intensity	= edb7211_lcd_backlight_set_intensity,
 };
 
@@ -112,8 +128,8 @@ static struct gpio edb7211_gpios[] __initconst = {
 
 static struct map_desc edb7211_io_desc[] __initdata = {
 	{	/* Memory-mapped extra keyboard row */
-		.virtual	= IO_ADDRESS(EP7211_PHYS_EXTKBD),
-		.pfn		= __phys_to_pfn(EP7211_PHYS_EXTKBD),
+		.virtual	= IO_ADDRESS(EDB7211_EXTKBD_BASE),
+		.pfn		= __phys_to_pfn(EDB7211_EXTKBD_BASE),
 		.length		= SZ_1M,
 		.type		= MT_DEVICE,
 	},
@@ -150,6 +166,11 @@ fixup_edb7211(struct tag *tags, char **cmdline, struct meminfo *mi)
 }
 
 static void __init edb7211_init(void)
+{
+	clps711x_devices_init();
+}
+
+static void __init edb7211_init_late(void)
 {
 	gpio_request_array(edb7211_gpios, ARRAY_SIZE(edb7211_gpios));
 
@@ -163,6 +184,9 @@ static void __init edb7211_init(void)
 	platform_device_register_simple("video-clps711x", 0, NULL, 0);
 	platform_device_register_simple("cs89x0", 0, edb7211_cs8900_resource,
 					ARRAY_SIZE(edb7211_cs8900_resource));
+	platform_device_register_data(&platform_bus, "i2c-gpio", 0,
+				      &edb7211_i2c_pdata,
+				      sizeof(edb7211_i2c_pdata));
 }
 
 MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
@@ -172,9 +196,11 @@ MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
 	.fixup		= fixup_edb7211,
 	.reserve	= edb7211_reserve,
 	.map_io		= edb7211_map_io,
+	.init_early	= clps711x_init_early,
 	.init_irq	= clps711x_init_irq,
 	.init_time	= clps711x_timer_init,
 	.init_machine	= edb7211_init,
+	.init_late	= edb7211_init_late,
 	.handle_irq	= clps711x_handle_irq,
 	.restart	= clps711x_restart,
 MACHINE_END