DaVinci: DM365: Voice codec support for the DM365 SoC

This patch adds the generic Voice Codec support for the DM365 based
platforms.

Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

3 files changed, 43 insertions, 1 deletions

diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index ec15f3d6f613..d5010567b496 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -455,7 +455,7 @@ static struct davinci_clk dm365_clks[] = {
         CLK(NULL, "timer3", &timer3_clk),
         CLK(NULL, "usb", &usb_clk),
         CLK("davinci_emac.1", NULL, &emac_clk),
-        CLK("voice_codec", NULL, &voicecodec_clk),
+        CLK("davinci_voicecodec", NULL, &voicecodec_clk),
         CLK("davinci-asp.0", NULL, &asp0_clk),
         CLK(NULL, "rto", &rto_clk),
         CLK(NULL, "mjcp", &mjcp_clk),
@@ -606,6 +606,8 @@ INT_CFG(DM365,  INT_NSF_DISABLE,     25,    1,    0,     false)
 
 EVT_CFG(DM365,  EVT2_ASP_TX,         0,     1,    0,     false)
 EVT_CFG(DM365,  EVT3_ASP_RX,         1,     1,    0,     false)
+EVT_CFG(DM365,  EVT2_VC_TX,          0,     1,    1,     false)
+EVT_CFG(DM365,  EVT3_VC_RX,          1,     1,    1,     false)
 #endif
 };
 
@@ -835,6 +837,31 @@ static struct platform_device dm365_asp_device = {
         .resource       = dm365_asp_resources,
 };
 
+static struct resource dm365_vc_resources[] = {
+        {
+                .start  = DAVINCI_DM365_VC_BASE,
+                .end    = DAVINCI_DM365_VC_BASE + SZ_1K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = DAVINCI_DMA_VC_TX,
+                .end    = DAVINCI_DMA_VC_TX,
+                .flags  = IORESOURCE_DMA,
+        },
+        {
+                .start  = DAVINCI_DMA_VC_RX,
+                .end    = DAVINCI_DMA_VC_RX,
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+static struct platform_device dm365_vc_device = {
+        .name           = "davinci_voicecodec",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(dm365_vc_resources),
+        .resource       = dm365_vc_resources,
+};
+
 static struct resource dm365_rtc_resources[] = {
         {
                 .start = DM365_RTC_BASE,
@@ -991,6 +1018,14 @@ void __init dm365_init_asp(struct snd_platform_data *pdata)
         platform_device_register(&dm365_asp_device);
 }
 
+void __init dm365_init_vc(struct snd_platform_data *pdata)
+{
+        davinci_cfg_reg(DM365_EVT2_VC_TX);
+        davinci_cfg_reg(DM365_EVT3_VC_RX);
+        dm365_vc_device.dev.platform_data = pdata;
+        platform_device_register(&dm365_vc_device);
+}
+
 void __init dm365_init_ks(struct davinci_ks_platform_data *pdata)
 {
         dm365_ks_device.dev.platform_data = pdata;
diff --git a/arch/arm/mach-davinci/include/mach/dm365.h b/arch/arm/mach-davinci/include/mach/dm365.h
index c3610eb39869..fdf6f8507cc3 100644
--- a/arch/arm/mach-davinci/include/mach/dm365.h
+++ b/arch/arm/mach-davinci/include/mach/dm365.h
@@ -32,8 +32,13 @@
 
 #define DM365_RTC_BASE                  (0x01C69000)
 
+#define DAVINCI_DM365_VC_BASE           (0x01D0C000)
+#define DAVINCI_DMA_VC_TX               2
+#define DAVINCI_DMA_VC_RX               3
+
 void __init dm365_init(void);
 void __init dm365_init_asp(struct snd_platform_data *pdata);
+void __init dm365_init_vc(struct snd_platform_data *pdata);
 void __init dm365_init_ks(struct davinci_ks_platform_data *pdata);
 void __init dm365_init_rtc(void);
 
diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index 137bfba51d1f..2a68c1d8a24b 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -327,6 +327,8 @@ enum davinci_dm365_index {
         /* EDMA event muxing */
         DM365_EVT2_ASP_TX,
         DM365_EVT3_ASP_RX,
+        DM365_EVT2_VC_TX,
+        DM365_EVT3_VC_RX,
         DM365_EVT26_MMC0_RX,
 };