From: Alexander Sverdlin subaparts@yandex.ru

Add support for CS4271 SPI-connected CODEC on EDB93xx boards.

Signed-off-by: Alexander Sverdlin subaparts@yandex.ru --- arch/arm/mach-ep93xx/edb93xx.c | 54 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 54 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c index 4b04316..9f9193d 100644 --- a/arch/arm/mach-ep93xx/edb93xx.c +++ b/arch/arm/mach-ep93xx/edb93xx.c @@ -30,12 +30,21 @@ #include <linux/gpio.h> #include <linux/i2c.h> #include <linux/i2c-gpio.h> +#include <linux/spi/spi.h> +#include <mach/ep93xx_spi.h>

#include <mach/hardware.h>

#include <asm/mach-types.h> #include <asm/mach/arch.h>

+#include <sound/cs4271.h> + +#define edb93xx_has_audio() (machine_is_edb9301() || \ + machine_is_edb9302() || \ + machine_is_edb9302a() || \ + machine_is_edb9307a() || \ + machine_is_edb9315a())

static void __init edb93xx_register_flash(void) { @@ -93,6 +102,49 @@ static void __init edb93xx_register_i2c(void)

/************************************************************************* + * EDB93xx SPI peripheral handling + *************************************************************************/ +static struct cs4271_platform_data cs4271_edb93xx_gpio = { + .gpio_nreset = EP93XX_GPIO_LINE_EGPIO1, + .gpio_disable = EP93XX_GPIO_LINE_EGPIO6, +}; + +static struct spi_board_info edb93xx_spi_board_info[] = { + { + .modalias = "cs4271", + .max_speed_hz = 6000000, + .bus_num = 0, + .chip_select = 0, + .mode = SPI_MODE_3, + .platform_data = &cs4271_edb93xx_gpio, + }, +}; + +static struct ep93xx_spi_info edb93xx_spi_info = { + .num_chipselect = ARRAY_SIZE(edb93xx_spi_board_info), +}; + +static void __init edb93xx_register_spi(void) +{ + if (edb93xx_has_audio()) { + ep93xx_register_spi(&edb93xx_spi_info, + edb93xx_spi_board_info, + ARRAY_SIZE(edb93xx_spi_board_info)); + } +} + +/************************************************************************* + * EDB93xx I2S + *************************************************************************/ +static void __init edb93xx_register_i2s(void) +{ + if (edb93xx_has_audio()) { + ep93xx_register_i2s(); + } +} + + +/************************************************************************* * EDB93xx pwm *************************************************************************/ static void __init edb93xx_register_pwm(void) @@ -117,6 +169,8 @@ static void __init edb93xx_init_machine(void) edb93xx_register_flash(); ep93xx_register_eth(&edb93xx_eth_data, 1); edb93xx_register_i2c(); + edb93xx_register_spi(); + edb93xx_register_i2s(); edb93xx_register_pwm(); }