From: Mika Westerberg <mika.westerberg@iki.fi>
Date: Thu, 14 Oct 2010 14:49:07 +0000 (+0300)
Subject: ARM: ep93xx: add AC97 platform support
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=534bc7fa3c0a9084e7a2db33898d92577c64e4eb;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

ARM: ep93xx: add AC97 platform support

Add platform support for the EP93xx AC97 controller driver.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 1990e2299841..ffdf87be2958 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -832,6 +832,40 @@ void ep93xx_i2s_release(void)
 }
 EXPORT_SYMBOL(ep93xx_i2s_release);
 
+/*************************************************************************
+ * EP93xx AC97 audio peripheral handling
+ *************************************************************************/
+static struct resource ep93xx_ac97_resources[] = {
+	{
+		.start	= EP93XX_AAC_PHYS_BASE,
+		.end	= EP93XX_AAC_PHYS_BASE + 0xb0 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= IRQ_EP93XX_AACINTR,
+		.end	= IRQ_EP93XX_AACINTR,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ep93xx_ac97_device = {
+	.name		= "ep93xx-ac97",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(ep93xx_ac97_resources),
+	.resource	= ep93xx_ac97_resources,
+};
+
+void __init ep93xx_register_ac97(void)
+{
+	/*
+	 * Make sure that the AC97 pins are not used by I2S.
+	 */
+	ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97);
+
+	platform_device_register(&ep93xx_ac97_device);
+	platform_device_register(&ep93xx_pcm_device);
+}
+
 extern void ep93xx_gpio_init(void);
 
 void __init ep93xx_init_devices(void)
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index c54b3e56ba63..9ac4d1055097 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -105,6 +105,7 @@
 #define EP93XX_GPIO_B_INT_STATUS	EP93XX_GPIO_REG(0xbc)
 #define EP93XX_GPIO_EEDRIVE		EP93XX_GPIO_REG(0xc8)
 
+#define EP93XX_AAC_PHYS_BASE		EP93XX_APB_PHYS(0x00080000)
 #define EP93XX_AAC_BASE			EP93XX_APB_IOMEM(0x00080000)
 
 #define EP93XX_SPI_PHYS_BASE		EP93XX_APB_PHYS(0x000a0000)
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index 3330b36d79e6..50660455b1d8 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -61,6 +61,7 @@ void ep93xx_keypad_release_gpio(struct platform_device *pdev);
 void ep93xx_register_i2s(void);
 int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config);
 void ep93xx_i2s_release(void);
+void ep93xx_register_ac97(void);
 
 void ep93xx_init_devices(void);
 extern struct sys_timer ep93xx_timer;