ARM: shmobile: lager: add sound support

This patch adds sound support for Lager board.
But, it is using PIO transfer at this point.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[horms+renesas@verge.net.au: resolved conflicts]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit d58922ce8cadba7e758608fef9438bc183b46b0f)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index d67f4b9..eb25bb9 100644 (file)
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -272,6 +272,7 @@ config MACH_LAGER
        depends on ARCH_R8A7790
        select USE_OF
        select MICREL_PHY if SH_ETH
+       select SND_SOC_AK4642 if SND_SIMPLE_CARD
 
 config MACH_KOELSCH
        bool "Koelsch board"

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 6a7041f..e8242c5 100644 (file)
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -20,6 +20,7 @@
 
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
+#include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -52,6 +53,20 @@
 #include <linux/spi/flash.h>
 #include <linux/spi/rspi.h>
 #include <linux/spi/spi.h>
+#include <sound/rcar_snd.h>
+#include <sound/simple_card.h>
+
+/*
+ * SSI-AK4643
+ *
+ * SW1: 1: AK4643
+ *      2: CN22
+ *      3: ADV7511
+ *
+ * this command is required when playback.
+ *
+ * # amixer set "LINEOUT Mixer DACL" on
+ */
 
 /* DU */
 static struct rcar_du_encoder_data lager_du_encoders[] = {
@@ -509,6 +524,77 @@ static const struct resource usbhs_phy_resources[] __initconst = {
        DEFINE_RES_MEM(0xe6590100, 0x100),
 };
 
+/* I2C */
+static struct i2c_board_info i2c2_devices[] = {
+       {
+               I2C_BOARD_INFO("ak4643", 0x12),
+       }
+};
+
+/* Sound */
+static struct resource rsnd_resources[] __initdata = {
+       [RSND_GEN2_SCU]  = DEFINE_RES_MEM(0xec500000, 0x1000),
+       [RSND_GEN2_ADG]  = DEFINE_RES_MEM(0xec5a0000, 0x100),
+       [RSND_GEN2_SSIU] = DEFINE_RES_MEM(0xec540000, 0x1000),
+       [RSND_GEN2_SSI]  = DEFINE_RES_MEM(0xec541000, 0x1280),
+};
+
+static struct rsnd_ssi_platform_info rsnd_ssi[] = {
+       RSND_SSI_SET(0, 0, gic_spi(370), RSND_SSI_PLAY),
+       RSND_SSI_SET(0, 0, gic_spi(371), RSND_SSI_CLK_PIN_SHARE),
+};
+
+static struct rsnd_scu_platform_info rsnd_scu[2] = {
+       /* no member at this point */
+};
+
+static struct rcar_snd_info rsnd_info = {
+       .flags          = RSND_GEN2,
+       .ssi_info       = rsnd_ssi,
+       .ssi_info_nr    = ARRAY_SIZE(rsnd_ssi),
+       .scu_info       = rsnd_scu,
+       .scu_info_nr    = ARRAY_SIZE(rsnd_scu),
+};
+
+static struct asoc_simple_card_info rsnd_card_info = {
+       .name           = "AK4643",
+       .card           = "SSI01-AK4643",
+       .codec          = "ak4642-codec.2-0012",
+       .platform       = "rcar_sound",
+       .daifmt         = SND_SOC_DAIFMT_LEFT_J,
+       .cpu_dai = {
+               .name   = "rcar_sound",
+               .fmt    = SND_SOC_DAIFMT_CBS_CFS,
+       },
+       .codec_dai = {
+               .name   = "ak4642-hifi",
+               .fmt    = SND_SOC_DAIFMT_CBM_CFM,
+               .sysclk = 11289600,
+       },
+};
+
+static void __init lager_add_rsnd_device(void)
+{
+       struct platform_device_info cardinfo = {
+               .parent         = &platform_bus,
+               .name           = "asoc-simple-card",
+               .id             = -1,
+               .data           = &rsnd_card_info,
+               .size_data      = sizeof(struct asoc_simple_card_info),
+               .dma_mask       = DMA_BIT_MASK(32),
+       };
+
+       i2c_register_board_info(2, i2c2_devices,
+                               ARRAY_SIZE(i2c2_devices));
+
+       platform_device_register_resndata(
+               &platform_bus, "rcar_sound", -1,
+               rsnd_resources, ARRAY_SIZE(rsnd_resources),
+               &rsnd_info, sizeof(rsnd_info));
+
+       platform_device_register_full(&cardinfo);
+}
+
 static const struct pinctrl_map lager_pinctrl_map[] = {
        /* DU (CN10: ARGB0, CN13: LVDS) */
        PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
@@ -517,12 +603,24 @@ static const struct pinctrl_map lager_pinctrl_map[] = {
                                  "du_sync_1", "du"),
        PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
                                  "du_clk_out_0", "du"),
+       /* I2C2 */
+       PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar.2", "pfc-r8a7790",
+                                 "i2c2", "i2c2"),
        /* SCIF0 (CN19: DEBUG SERIAL0) */
        PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7790",
                                  "scif0_data", "scif0"),
        /* SCIF1 (CN20: DEBUG SERIAL1) */
        PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.7", "pfc-r8a7790",
                                  "scif1_data", "scif1"),
+       /* SSI (CN17: sound) */
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7790",
+                                 "ssi0129_ctrl", "ssi"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7790",
+                                 "ssi0_data", "ssi"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7790",
+                                 "ssi1_data", "ssi"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7790",
+                                 "audio_clk_a", "audio_clk"),
        /* MMCIF1 */
        PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.1", "pfc-r8a7790",
                                  "mmc1_data8", "mmc1"),
@@ -616,6 +714,8 @@ static void __init lager_add_standard_devices(void)
                                          &usbhs_phy_pdata,
                                          sizeof(usbhs_phy_pdata));
        lager_register_usbhs();
+
+       lager_add_rsnd_device();
 }
 
 /*