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authorHans-Christian Egtvedt <hcegtvedt@atmel.com>2007-07-16 16:13:33 +0200
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-10-23 11:19:14 +0200
commit1c2f173796e4d692b71d1305adb833a104713cd8 (patch)
tree6546cca331f6bc563e0cb304a947b15646eff998 /arch/avr32/boards
parent48021bd93ca339fcafe9b043d05f5d3a58be7c0a (diff)
downloadlinux-1c2f173796e4d692b71d1305adb833a104713cd8.tar.bz2
[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>
Diffstat (limited to 'arch/avr32/boards')
-rw-r--r--arch/avr32/boards/atstk1000/atstk1002.c58
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);