diff options
Diffstat (limited to 'recipes/linux/linux-2.6.31/pcm043/0023-pca100-add-sound-support.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.31/pcm043/0023-pca100-add-sound-support.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.31/pcm043/0023-pca100-add-sound-support.patch b/recipes/linux/linux-2.6.31/pcm043/0023-pca100-add-sound-support.patch new file mode 100644 index 0000000000..623d80ab31 --- /dev/null +++ b/recipes/linux/linux-2.6.31/pcm043/0023-pca100-add-sound-support.patch @@ -0,0 +1,99 @@ +From f58f54a10075e0ff2d952b9264ce880c1ecbf439 Mon Sep 17 00:00:00 2001 +From: Sascha Hauer <s.hauer@pengutronix.de> +Date: Fri, 6 Nov 2009 15:29:58 +0100 +Subject: [PATCH 23/28] pca100: add sound support + +Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> +--- + arch/arm/mach-mx2/pca100.c | 52 ++++++++++++++++++++++++++++++++++++++++++++ + 1 files changed, 52 insertions(+), 0 deletions(-) + +diff --git a/arch/arm/mach-mx2/pca100.c b/arch/arm/mach-mx2/pca100.c +index fe5b165..e0a464d 100644 +--- a/arch/arm/mach-mx2/pca100.c ++++ b/arch/arm/mach-mx2/pca100.c +@@ -26,6 +26,7 @@ + #include <linux/spi/eeprom.h> + #include <linux/irq.h> + #include <linux/gpio.h> ++#include <linux/delay.h> + + #include <asm/mach/arch.h> + #include <asm/mach-types.h> +@@ -41,6 +42,8 @@ + #include <mach/mxc_nand.h> + #include <mach/irqs.h> + #include <mach/mmc.h> ++#include <mach/audmux.h> ++#include <mach/ssi.h> + + #include "devices.h" + +@@ -182,15 +185,64 @@ static struct imxmmc_platform_data sdhc_pdata = { + .exit = pca100_sdhc2_exit, + }; + ++static void pca100_ac97_warm_reset(struct snd_ac97 *ac97) ++{ ++ printk("%s\n", __func__); ++ ++ mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); ++ gpio_set_value(GPIO_PORTC + 20, 1); ++ udelay(2); ++ gpio_set_value(GPIO_PORTC + 20, 0); ++ mxc_gpio_mode(PC20_PF_SSI1_FS); ++ msleep(2); ++} ++ ++static void pca100_ac97_cold_reset(struct snd_ac97 *ac97) ++{ ++ printk("%s\n", __func__); ++ ++ mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */ ++ gpio_set_value(GPIO_PORTC + 20, 0); ++ mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */ ++ gpio_set_value(GPIO_PORTC + 22, 0); ++ mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */ ++ gpio_set_value(GPIO_PORTC + 28, 0); ++ udelay(10); ++ gpio_set_value(GPIO_PORTC + 28, 1); ++ mxc_gpio_mode(PC20_PF_SSI1_FS); ++ mxc_gpio_mode(PC22_PF_SSI1_TXD); ++ msleep(2); ++} ++ ++static struct imx_ssi_platform_data pca100_ssi_pdata = { ++ .ac97_reset = pca100_ac97_cold_reset, ++ .ac97_warm_reset = pca100_ac97_warm_reset, ++ .flags = IMX_SSI_USE_AC97, ++}; ++ + static void __init pca100_init(void) + { + int ret; + ++ /* SSI unit */ ++ mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, ++ MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */ ++ MXC_AUDMUX_V1_PCR_TFCSEL(3) | ++ MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */ ++ MXC_AUDMUX_V1_PCR_RXDSEL(3)); ++ mxc_audmux_v1_configure_port(4, ++ MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */ ++ MXC_AUDMUX_V1_PCR_TFCSEL(0) | ++ MXC_AUDMUX_V1_PCR_TFSDIR | ++ MXC_AUDMUX_V1_PCR_RXDSEL(0)); ++ + ret = mxc_gpio_setup_multiple_pins(pca100_pins, + ARRAY_SIZE(pca100_pins), "PCA100"); + if (ret) + printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret); + ++ mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata); ++ + mxc_register_device(&mxc_uart_device0, &uart_pdata); + + mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN); +-- +1.6.5.2 + |