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Commit b07b4e29 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Linus Walleij
Browse files

ARM: ep93xx: vision_ep9307: add audio support 



Add I2S audio support to the vision_ep9307 system.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 25105231

arch/arm/mach-ep93xx/vision_ep9307.c

+56 −2
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ 
#include <linux/spi/mmc_spi.h>

#include <linux/mmc/host.h>



#include <sound/cs4271.h>



#include <mach/hardware.h>

#include <linux/platform_data/video-ep93xx.h>

#include <linux/platform_data/spi-ep93xx.h>
@@ -168,6 +170,35 @@ static struct i2c_board_info vision_i2c_info[] __initdata = { 
	},

};



/*************************************************************************

 * SPI CS4271 Audio Codec

 *************************************************************************/

static struct cs4271_platform_data vision_cs4271_data = {

	.gpio_nreset	= EP93XX_GPIO_LINE_H(2),

};



static int vision_cs4271_hw_setup(struct spi_device *spi)

{

	return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6,

				GPIOF_OUT_INIT_HIGH, spi->modalias);

}



static void vision_cs4271_hw_cleanup(struct spi_device *spi)

{

	gpio_free(EP93XX_GPIO_LINE_EGPIO6);

}



static void vision_cs4271_hw_cs_control(struct spi_device *spi, int value)

{

	gpio_set_value(EP93XX_GPIO_LINE_EGPIO6, value);

}



static struct ep93xx_spi_chip_ops vision_cs4271_hw = {

	.setup		= vision_cs4271_hw_setup,

	.cleanup	= vision_cs4271_hw_cleanup,

	.cs_control	= vision_cs4271_hw_cs_control,

};



/*************************************************************************

 * SPI Flash

 *************************************************************************/
@@ -262,12 +293,20 @@ static struct ep93xx_spi_chip_ops vision_spi_mmc_hw = { 
 *************************************************************************/

static struct spi_board_info vision_spi_board_info[] __initdata = {

	{

		.modalias		= "cs4271",

		.platform_data		= &vision_cs4271_data,

		.controller_data	= &vision_cs4271_hw,

		.max_speed_hz		= 6000000,

		.bus_num		= 0,

		.chip_select		= 0,

		.mode			= SPI_MODE_3,

	}, {

		.modalias		= "sst25l",

		.platform_data		= &vision_spi_flash_data,

		.controller_data	= &vision_spi_flash_hw,

		.max_speed_hz		= 20000000,

		.bus_num		= 0,

		.chip_select		= 0,

		.chip_select		= 1,

		.mode			= SPI_MODE_3,

	}, {

		.modalias		= "mmc_spi",
@@ -275,7 +314,7 @@ static struct spi_board_info vision_spi_board_info[] __initdata = { 
		.controller_data	= &vision_spi_mmc_hw,

		.max_speed_hz		= 20000000,

		.bus_num		= 0,

		.chip_select		= 1,

		.chip_select		= 2,

		.mode			= SPI_MODE_3,

	},

};
@@ -285,6 +324,20 @@ static struct ep93xx_spi_info vision_spi_master __initdata = { 
	.use_dma	= 1,

};



/*************************************************************************

 * I2S Audio

 *************************************************************************/

static struct platform_device vision_audio_device = {

	.name		= "edb93xx-audio",

	.id		= -1,

};



static void __init vision_register_i2s(void)

{

	ep93xx_register_i2s();

	platform_device_register(&vision_audio_device);

}



/*************************************************************************

 * Machine Initialization

 *************************************************************************/
@@ -310,6 +363,7 @@ static void __init vision_init_machine(void) 
				ARRAY_SIZE(vision_i2c_info));

	ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,

				ARRAY_SIZE(vision_spi_board_info));

	vision_register_i2s();

}



MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")