From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Sverdlin Subject: [PATCH] EDB93xx: Add support for CS4271 CODEC on EDB93xx boards Date: Sun, 23 Jan 2011 03:51:24 +0300 Message-ID: <1295743884.14515.35.camel@r60e> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from forward1.mail.yandex.net (forward1.mail.yandex.net [77.88.46.6]) by alsa0.perex.cz (Postfix) with ESMTP id 3BE7010384E for ; Sun, 23 Jan 2011 01:51:29 +0100 (CET) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org, Liam Girdwood , Mark Brown , Dimitris Papastamos Cc: H Hartley Sweeten , George Kashperko , Lennert Buytenhek List-Id: alsa-devel@alsa-project.org From: Alexander Sverdlin Add support for CS4271 SPI-connected CODEC on EDB93xx boards. Signed-off-by: Alexander Sverdlin --- 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 #include #include +#include +#include #include #include #include +#include + +#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(); }