This patch will adjust the setup the DMA controller for the Audio
Bistream DAC in the at32ap700x machine code. This setup matches the new
ALSA driver for the ABDAC.
Tested on ATSTK1006 + ATSTK1000.
This patch will setup the needed platform data for the Audio Bistream
DAC used by the Favr-32 board.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
[haavard.skinnemoen@atmel.com: fold board code update]
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
+#include <sound/atmel-abdac.h>
+
#include <video/atmel_lcdc.h>
#include <asm/setup.h>
#include <video/atmel_lcdc.h>
#include <asm/setup.h>
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
+static struct atmel_abdac_pdata __initdata abdac0_data = {
+};
+
struct eth_addr {
u8 addr[6];
};
struct eth_addr {
u8 addr[6];
};
spi1_board_info[0].irq = gpio_to_irq(GPIO_PIN_PB(3));
spi1_board_info[0].irq = gpio_to_irq(GPIO_PIN_PB(3));
- set_abdac_rate(at32_add_device_abdac(0));
+ set_abdac_rate(at32_add_device_abdac(0, &abdac0_data));
at32_add_device_pwm(1 << atmel_pwm_bl_pdata.pwm_channel);
at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
at32_add_device_pwm(1 << atmel_pwm_bl_pdata.pwm_channel);
at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
#include <mach/portmux.h>
#include <mach/sram.h>
#include <mach/portmux.h>
#include <mach/sram.h>
+#include <sound/atmel-abdac.h>
+
#include <video/atmel_lcdc.h>
#include "clock.h"
#include <video/atmel_lcdc.h>
#include "clock.h"
-struct platform_device *__init at32_add_device_abdac(unsigned int id)
+struct platform_device *__init
+at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data)
- struct platform_device *pdev;
- u32 pin_mask;
+ struct platform_device *pdev;
+ struct dw_dma_slave *dws;
+ u32 pin_mask;
- pdev = platform_device_alloc("abdac", id);
+ pdev = platform_device_alloc("atmel_abdac", id);
if (!pdev)
return NULL;
if (platform_device_add_resources(pdev, abdac0_resource,
ARRAY_SIZE(abdac0_resource)))
if (!pdev)
return NULL;
if (platform_device_add_resources(pdev, abdac0_resource,
ARRAY_SIZE(abdac0_resource)))
- goto err_add_resources;
+ goto out_free_resources;
+
+ dws = &data->dws;
+
+ dws->dma_dev = &dw_dmac0_device.dev;
+ dws->reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
+ dws->cfg_hi = DWC_CFGH_DST_PER(2);
+ dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
+
+ if (platform_device_add_data(pdev, data,
+ sizeof(struct atmel_abdac_pdata)))
+ goto out_free_resources;
pin_mask = (1 << 20) | (1 << 22); /* DATA1 & DATAN1 */
pin_mask |= (1 << 21) | (1 << 23); /* DATA0 & DATAN0 */
pin_mask = (1 << 20) | (1 << 22); /* DATA1 & DATAN1 */
pin_mask |= (1 << 21) | (1 << 23); /* DATA0 & DATAN0 */
platform_device_add(pdev);
return pdev;
platform_device_add(pdev);
return pdev;
platform_device_put(pdev);
return NULL;
}
platform_device_put(pdev);
return NULL;
}
* in this array is chip-dependent.
*/
extern unsigned long at32_board_osc_rates[];
* in this array is chip-dependent.
*/
extern unsigned long at32_board_osc_rates[];
/*
* This used to add essential system devices, but this is now done
* automatically. Please don't use it in new board code.
/*
* This used to add essential system devices, but this is now done
* automatically. Please don't use it in new board code.
struct platform_device *
at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data);
struct platform_device *
at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data);
-struct platform_device *at32_add_device_abdac(unsigned int id);
+struct atmel_abdac_pdata;
+struct platform_device *
+at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data);
+
struct platform_device *at32_add_device_psif(unsigned int id);
struct cf_platform_data {
struct platform_device *at32_add_device_psif(unsigned int id);
struct cf_platform_data {