OMAP4: omap4panda: Enable audio support

PandaBoard has twl6040 codec for audio.
Register the omap4-abe-twl6040 platform device.
Add platform data to enable the twl6040 codec.
Since there is a difference in audio between  PandaBoard 4430
and PandaBoard ES (4460):
Use different name for the sound card:
"PandaBoard" for PandaBoard 4430
"PandaBoardES" for PandaBoard ES

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Santosh Shilimkar <santosh.shilimkar@ti.com>
CC: David Anders <x0132446@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 59 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 30ad40db2cf3..eada955014af 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -28,6 +28,7 @@
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
 #include <linux/wl12xx.h>
+#include <linux/platform_data/omap-abe-twl6040.h>
 
 #include <mach/hardware.h>
 #include <asm/hardware/gic.h>
@@ -90,9 +91,34 @@ static struct platform_device leds_gpio = {
         },
 };
 
+static struct omap_abe_twl6040_data panda_abe_audio_data = {
+        /* Audio out */
+        .has_hs         = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
+        /* HandsFree through expasion connector */
+        .has_hf         = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
+        /* PandaBoard: FM TX, PandaBoardES: can be connected to audio out */
+        .has_aux        = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
+        /* PandaBoard: FM RX, PandaBoardES: audio in */
+        .has_afm        = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
+        /* No jack detection. */
+        .jack_detection = 0,
+        /* MCLK input is 38.4MHz */
+        .mclk_freq      = 38400000,
+
+};
+
+static struct platform_device panda_abe_audio = {
+        .name           = "omap-abe-twl6040",
+        .id             = -1,
+        .dev = {
+                .platform_data = &panda_abe_audio_data,
+        },
+};
+
 static struct platform_device *panda_devices[] __initdata = {
         &leds_gpio,
         &wl1271_device,
+        &panda_abe_audio,
 };
 
 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
@@ -251,8 +277,25 @@ static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
         return 0;
 }
 
+static struct twl4030_codec_data twl6040_codec = {
+        /* single-step ramp for headset and handsfree */
+        .hs_left_step   = 0x0f,
+        .hs_right_step  = 0x0f,
+        .hf_left_step   = 0x1d,
+        .hf_right_step  = 0x1d,
+};
+
+static struct twl4030_audio_data twl6040_audio = {
+        .codec          = &twl6040_codec,
+        .audpwron_gpio  = 127,
+        .naudint_irq    = OMAP44XX_IRQ_SYS_2N,
+        .irq_base       = TWL6040_CODEC_IRQ_BASE,
+};
+
 /* Panda board uses the common PMIC configuration */
-static struct twl4030_platform_data omap4_panda_twldata;
+static struct twl4030_platform_data omap4_panda_twldata = {
+        .audio          = &twl6040_audio,
+};
 
 /*
  * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
@@ -475,6 +518,20 @@ void omap4_panda_display_init(void)
                 omap_hdmi_init(0);
 }
 
+static void omap4_panda_init_rev(void)
+{
+        if (cpu_is_omap4430()) {
+                /* PandaBoard 4430 */
+                /* ASoC audio configuration */
+                panda_abe_audio_data.card_name = "PandaBoard";
+                panda_abe_audio_data.has_hsmic = 1;
+        } else {
+                /* PandaBoard ES */
+                /* ASoC audio configuration */
+                panda_abe_audio_data.card_name = "PandaBoardES";
+        }
+}
+
 static void __init omap4_panda_init(void)
 {
         int package = OMAP_PACKAGE_CBS;
@@ -486,6 +543,7 @@ static void __init omap4_panda_init(void)
         if (wl12xx_set_platform_data(&omap_panda_wlan_data))
                 pr_err("error setting wl12xx data\n");
 
+        omap4_panda_init_rev();
         omap4_panda_i2c_init();
         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
         platform_device_register(&omap_vwlan_device);