ARM: shmobile: armadillo800eva: enable FSI-WM8978 sound

This patch enable sound support on CON11

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

2 files changed, 100 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index df33909205e2..1542e913f73e 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -106,6 +106,7 @@ config MACH_ARMADILLO800EVA
         depends on ARCH_R8A7740
         select ARCH_REQUIRE_GPIOLIB
         select USE_OF
+        select SND_SOC_WM8978 if SND_SIMPLE_CARD
 
 config MACH_MARZEN
         bool "MARZEN board"
diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index 2cce28b2e40a..08f0e7b5deef 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -49,6 +49,8 @@
 #include <asm/hardware/cache-l2x0.h>
 #include <video/sh_mobile_lcdc.h>
 #include <video/sh_mobile_hdmi.h>
+#include <sound/sh_fsi.h>
+#include <sound/simple_card.h>
 
 /*
  * CON1         Camera Module
@@ -112,6 +114,28 @@
  */
 
 /*
+ * FSI-WM8978
+ *
+ * this command is required when playback.
+ *
+ * # amixer set "Headphone" 50
+ */
+
+/*
+ * FIXME !!
+ *
+ * gpio_no_direction
+ *
+ * current gpio frame work doesn't have
+ * the method to control only pull up/down/free.
+ * this function should be replaced by correct gpio function
+ */
+static void __init gpio_no_direction(u32 addr)
+{
+        __raw_writeb(0x00, addr);
+}
+
+/*
  * USB function
  *
  * When you use USB Function,
@@ -714,12 +738,71 @@ static struct platform_device ceu0_device = {
         },
 };
 
+/* FSI */
+static struct sh_fsi_platform_info fsi_info = {
+        /* FSI-WM8978 */
+        .port_a = {
+        },
+};
+
+static struct resource fsi_resources[] = {
+        [0] = {
+                .name   = "FSI",
+                .start  = 0xfe1f0000,
+                .end    = 0xfe1f8400 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = evt2irq(0x1840),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device fsi_device = {
+        .name           = "sh_fsi2",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(fsi_resources),
+        .resource       = fsi_resources,
+        .dev    = {
+                .platform_data  = &fsi_info,
+        },
+};
+
+/* FSI-WM8978 */
+static struct asoc_simple_dai_init_info fsi_wm8978_init_info = {
+        .fmt            = SND_SOC_DAIFMT_I2S,
+        .codec_daifmt   = SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_NB_NF,
+        .cpu_daifmt     = SND_SOC_DAIFMT_CBS_CFS,
+        .sysclk         = 12288000,
+};
+
+static struct asoc_simple_card_info fsi_wm8978_info = {
+        .name           = "wm8978",
+        .card           = "FSI2A-WM8978",
+        .cpu_dai        = "fsia-dai",
+        .codec          = "wm8978.0-001a",
+        .platform       = "sh_fsi2",
+        .codec_dai      = "wm8978-hifi",
+        .init           = &fsi_wm8978_init_info,
+};
+
+static struct platform_device fsi_wm8978_device = {
+        .name   = "asoc-simple-card",
+        .id     = 0,
+        .dev    = {
+                .platform_data  = &fsi_wm8978_info,
+        },
+};
+
 /* I2C */
 static struct i2c_board_info i2c0_devices[] = {
         {
                 I2C_BOARD_INFO("st1232-ts", 0x55),
                 .irq = evt2irq(0x0340),
         },
+        {
+                I2C_BOARD_INFO("wm8978", 0x1a),
+        },
 };
 
 /*
@@ -735,6 +818,8 @@ static struct platform_device *eva_devices[] __initdata = {
         &hdmi_lcdc_device,
         &camera_device,
         &ceu0_device,
+        &fsi_device,
+        &fsi_wm8978_device,
 };
 
 static void __init eva_clock_init(void)
@@ -768,6 +853,8 @@ clock_error:
 /*
  * board init
  */
+#define GPIO_PORT7CR    0xe6050007
+#define GPIO_PORT8CR    0xe6050008
 static void __init eva_init(void)
 {
         eva_clock_init();
@@ -916,6 +1003,18 @@ static void __init eva_init(void)
         gpio_direction_output(GPIO_PORT172, 1);
         gpio_direction_output(GPIO_PORT158, 0); /* see mt9t111_power() */
 
+        /* FSI-WM8978 */
+        gpio_request(GPIO_FN_FSIAIBT,           NULL);
+        gpio_request(GPIO_FN_FSIAILR,           NULL);
+        gpio_request(GPIO_FN_FSIAOMC,           NULL);
+        gpio_request(GPIO_FN_FSIAOSLD,          NULL);
+        gpio_request(GPIO_FN_FSIAISLD_PORT5,    NULL);
+
+        gpio_request(GPIO_PORT7, NULL);
+        gpio_request(GPIO_PORT8, NULL);
+        gpio_no_direction(GPIO_PORT7CR); /* FSIAOBT needs no direction */
+        gpio_no_direction(GPIO_PORT8CR); /* FSIAOLR needs no direction */
+
         /*
          * CAUTION
          *