ep93xx: Use ioremap for backlight driver

[pandora-kernel.git] / arch / arm / mach-ep93xx / core.c

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 24203f9..c73e299 100644 (file)
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -682,9 +682,19 @@ static struct platform_device ep93xx_fb_device = {
        .resource               = ep93xx_fb_resource,
 };
 
+/* The backlight use a single register in the framebuffer's register space */
+#define EP93XX_RASTER_REG_BRIGHTNESS 0x20
+
+static struct resource ep93xx_bl_resources[] = {
+       DEFINE_RES_MEM(EP93XX_RASTER_PHYS_BASE +
+                      EP93XX_RASTER_REG_BRIGHTNESS, 0x04),
+};
+
 static struct platform_device ep93xx_bl_device = {
        .name           = "ep93xx-bl",
        .id             = -1,
+       .num_resources  = ARRAY_SIZE(ep93xx_bl_resources),
+       .resource       = ep93xx_bl_resources,
 };
 
 /**
@@ -817,23 +827,12 @@ void __init ep93xx_register_i2s(void)
 #define EP93XX_I2SCLKDIV_MASK          (EP93XX_SYSCON_I2SCLKDIV_ORIDE | \
                                         EP93XX_SYSCON_I2SCLKDIV_SPOL)
 
-int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config)
+int ep93xx_i2s_acquire(void)
 {
        unsigned val;
 
-       /* Sanity check */
-       if (i2s_pins & ~EP93XX_SYSCON_DEVCFG_I2S_MASK)
-               return -EINVAL;
-       if (i2s_config & ~EP93XX_I2SCLKDIV_MASK)
-               return -EINVAL;
-
-       /* Must have only one of I2SONSSP/I2SONAC97 set */
-       if ((i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONSSP) ==
-           (i2s_pins & EP93XX_SYSCON_DEVCFG_I2SONAC97))
-               return -EINVAL;
-
-       ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2S_MASK);
-       ep93xx_devcfg_set_bits(i2s_pins);
+       ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_I2SONAC97,
+                       EP93XX_SYSCON_DEVCFG_I2S_MASK);
 
        /*
         * This is potentially racy with the clock api for i2s_mclk, sclk and 
@@ -843,7 +842,7 @@ int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config)
         */
        val = __raw_readl(EP93XX_SYSCON_I2SCLKDIV);
        val &= ~EP93XX_I2SCLKDIV_MASK;
-       val |= i2s_config;
+       val |= EP93XX_SYSCON_I2SCLKDIV_ORIDE | EP93XX_SYSCON_I2SCLKDIV_SPOL;
        ep93xx_syscon_swlocked_write(val, EP93XX_SYSCON_I2SCLKDIV);
 
        return 0;