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Diffstat (limited to 'arch/avr32/mach-at32ap/at32ap700x.c')
-rw-r--r--arch/avr32/mach-at32ap/at32ap700x.c51
1 files changed, 35 insertions, 16 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 1bc6389b20b..62501d64322 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -27,6 +27,7 @@
#include <mach/sram.h>
#include <sound/atmel-abdac.h>
+#include <sound/atmel-ac97c.h>
#include <video/atmel_lcdc.h>
@@ -1982,11 +1983,14 @@ static struct clk atmel_ac97c0_pclk = {
};
struct platform_device *__init
-at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
+at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data,
+ unsigned int flags)
{
- struct platform_device *pdev;
- struct ac97c_platform_data _data;
- u32 pin_mask;
+ struct platform_device *pdev;
+ struct dw_dma_slave *rx_dws;
+ struct dw_dma_slave *tx_dws;
+ struct ac97c_platform_data _data;
+ u32 pin_mask;
if (id != 0)
return NULL;
@@ -1997,37 +2001,52 @@ at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
if (platform_device_add_resources(pdev, atmel_ac97c0_resource,
ARRAY_SIZE(atmel_ac97c0_resource)))
- goto fail;
+ goto out_free_resources;
if (!data) {
data = &_data;
memset(data, 0, sizeof(struct ac97c_platform_data));
- data->reset_pin = GPIO_PIN_NONE;
+ data->reset_pin = -ENODEV;
}
- data->dma_rx_periph_id = 3;
- data->dma_tx_periph_id = 4;
- data->dma_controller_id = 0;
+ rx_dws = &data->rx_dws;
+ tx_dws = &data->tx_dws;
+
+ /* Check if DMA slave interface for capture should be configured. */
+ if (flags & AC97C_CAPTURE) {
+ rx_dws->dma_dev = &dw_dmac0_device.dev;
+ rx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
+ rx_dws->cfg_hi = DWC_CFGH_SRC_PER(3);
+ rx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
+ }
+
+ /* Check if DMA slave interface for playback should be configured. */
+ if (flags & AC97C_PLAYBACK) {
+ tx_dws->dma_dev = &dw_dmac0_device.dev;
+ tx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
+ tx_dws->cfg_hi = DWC_CFGH_DST_PER(4);
+ tx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
+ }
if (platform_device_add_data(pdev, data,
sizeof(struct ac97c_platform_data)))
- goto fail;
+ goto out_free_resources;
- pin_mask = (1 << 20) | (1 << 21); /* SDO & SYNC */
- pin_mask |= (1 << 22) | (1 << 23); /* SCLK & SDI */
+ /* SDO | SYNC | SCLK | SDI */
+ pin_mask = (1 << 20) | (1 << 21) | (1 << 22) | (1 << 23);
select_peripheral(PIOB, pin_mask, PERIPH_B, 0);
- /* TODO: gpio_is_valid(data->reset_pin) with kernel 2.6.26. */
- if (data->reset_pin != GPIO_PIN_NONE)
- at32_select_gpio(data->reset_pin, 0);
+ if (gpio_is_valid(data->reset_pin))
+ at32_select_gpio(data->reset_pin, AT32_GPIOF_OUTPUT
+ | AT32_GPIOF_HIGH);
atmel_ac97c0_pclk.dev = &pdev->dev;
platform_device_add(pdev);
return pdev;
-fail:
+out_free_resources:
platform_device_put(pdev);
return NULL;
}