[AVR32] Wire up AT73C213 sound driver on ATSTK1000 board

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 6b9e466104ad..5be0d13f4b03 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -16,6 +16,7 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/spi/spi.h>
+#include <linux/spi/at73c213.h>
 
 #include <video/atmel_lcdc.h>
 
@@ -49,7 +50,26 @@ static struct eth_platform_data __initdata eth_data[2] = {
 };
 
 #ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+static struct at73c213_board_info at73c213_data = {
+        .ssc_id         = 0,
+        .shortname      = "AVR32 STK1000 external DAC",
+};
+#endif
+#endif
+
+#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
 static struct spi_board_info spi0_board_info[] __initdata = {
+#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+        {
+                /* AT73C213 */
+                .modalias       = "at73c213",
+                .max_speed_hz   = 200000,
+                .chip_select    = 0,
+                .mode           = SPI_MODE_1,
+                .platform_data  = &at73c213_data,
+        },
+#endif
         {
                 /* QVGA display */
                 .modalias       = "ltv350qv",
@@ -180,6 +200,38 @@ static void setup_j2_leds(void)
 }
 #endif
 
+#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+static void __init at73c213_set_clk(struct at73c213_board_info *info)
+{
+        struct clk *gclk;
+        struct clk *pll;
+
+        gclk = clk_get(NULL, "gclk0");
+        if (IS_ERR(gclk))
+                goto err_gclk;
+        pll = clk_get(NULL, "pll0");
+        if (IS_ERR(pll))
+                goto err_pll;
+
+        if (clk_set_parent(gclk, pll)) {
+                pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
+                goto err_set_clk;
+        }
+
+        at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
+        info->dac_clk = gclk;
+
+err_set_clk:
+        clk_put(pll);
+err_pll:
+        clk_put(gclk);
+err_gclk:
+        return;
+}
+#endif
+#endif
+
 void __init setup_board(void)
 {
 #ifdef  CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
@@ -248,6 +300,12 @@ static int __init atstk1002_init(void)
 
         setup_j2_leds();
 
+#ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
+#ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
+        at73c213_set_clk(&at73c213_data);
+#endif
+#endif
+
         return 0;
 }
 postcore_initcall(atstk1002_init);