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ceaf9e8217
kumquat-buildroot/target/device/Atmel/misc-patches/linux-2.6.24-avr32-ac97-reset.patch
John Voltz ceaf9e8217 updates and additions for avr32 arch
2008-03-06 18:59:14 +00:00

290 lines
8.6 KiB
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Raw Blame History

diff --git a/sound/avr32/ac97c.c b/sound/avr32/ac97c.c
index 0ec0b1c..3a58375 100644
--- a/sound/avr32/ac97c.c
+++ b/sound/avr32/ac97c.c
@@ -25,6 +25,8 @@
#include <sound/ac97_codec.h>
#include <sound/memalloc.h>
+#include <asm/gpio.h>
+#include <asm/arch/board.h>
#include <asm/dma-controller.h>
#include "ac97c.h"
@@ -37,6 +39,7 @@ struct atmel_ac97_dma_info {
struct dma_request_cyclic req_rx;
unsigned short rx_periph_id;
unsigned short tx_periph_id;
+ unsigned short controller;
};
struct atmel_ac97 {
@@ -51,6 +54,7 @@ struct atmel_ac97 {
struct snd_ac97_bus *ac97_bus;
int opened;
int period;
+ int reset_pin;
u64 cur_format;
unsigned int cur_rate;
struct clk *mck;
@@ -692,6 +696,12 @@ timed_out:
static void snd_atmel_ac97_reset(struct atmel_ac97 *chip)
{
+ if (chip->reset_pin >= 0) {
+ gpio_set_value(chip->reset_pin, 0);
+ udelay(5);
+ gpio_set_value(chip->reset_pin, 1);
+ }
+
ac97c_writel(chip, MR, AC97C_MR_WRST);
mdelay(1);
ac97c_writel(chip, MR, AC97C_MR_ENA);
@@ -727,6 +737,7 @@ static int __devinit snd_atmel_ac97_create(struct snd_card *card,
.read = snd_atmel_ac97_read,
};
struct atmel_ac97 *chip = get_chip(card);
+ struct ac97c_platform_data *pdata;
struct resource *regs;
struct clk *mck;
int err;
@@ -735,6 +746,29 @@ static int __devinit snd_atmel_ac97_create(struct snd_card *card,
if (!regs)
return -ENXIO;
+ pdata = pdev->dev.platform_data;
+ if (pdata) {
+ chip->reset_pin = pdata->reset_pin;
+
+ if (chip->reset_pin >= 0) {
+ if (gpio_request(chip->reset_pin,
+ chip->card->shortname)) {
+ dev_dbg(&pdev->dev,
+ "ac97: reset pin "
+ "not available\n");
+ chip->reset_pin = -1;
+ } else {
+ gpio_direction_output(chip->reset_pin, 1);
+ }
+ }
+
+ chip->dma.rx_periph_id = pdata->dma_rx_periph_id;
+ chip->dma.tx_periph_id = pdata->dma_tx_periph_id;
+ chip->dma.controller = pdata->dma_controller_id;
+ } else {
+ return -ENXIO;
+ }
+
mck = clk_get(&pdev->dev, "pclk");
if (IS_ERR(mck))
return PTR_ERR(mck);
@@ -789,23 +823,19 @@ static int __devinit snd_atmel_ac97_probe(struct platform_device *pdev)
if (err)
goto out_free_card;
- /* TODO: Get this information from the platform device */
- chip->dma.req_tx.req.dmac = find_dma_controller(0);
+ chip->dma.req_tx.req.dmac = find_dma_controller(chip->dma.controller);
if (!chip->dma.req_tx.req.dmac) {
dev_dbg(&chip->pdev->dev, "DMA controller for TX missing\n");
err = -ENODEV;
goto out_free_card;
}
- chip->dma.req_rx.req.dmac = find_dma_controller(0);
+ chip->dma.req_rx.req.dmac = find_dma_controller(chip->dma.controller);
if (!chip->dma.req_rx.req.dmac) {
dev_dbg(&chip->pdev->dev, "DMA controller for RX missing\n");
err = -ENODEV;
goto out_free_card;
}
- chip->dma.rx_periph_id = 3;
- chip->dma.tx_periph_id = 4;
-
ch = dma_alloc_channel(chip->dma.req_tx.req.dmac);
if (ch < 0) {
dev_dbg(&chip->pdev->dev,
--
1.5.2.5
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 06795d0..58f3841 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1552,12 +1552,15 @@ static struct clk atmel_ac97c0_pclk = {
.index = 10,
};
-struct platform_device *__init at32_add_device_ac97c(unsigned int id)
+struct platform_device *__init
+at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
{
struct platform_device *pdev;
if (id != 0)
return NULL;
+ if (!data)
+ return NULL;
pdev = platform_device_alloc("atmel_ac97c", id);
if (!pdev)
@@ -1567,10 +1570,17 @@ struct platform_device *__init at32_add_device_ac97c(unsigned int id)
ARRAY_SIZE(atmel_ac97c0_resource)))
goto err_add_resources;
- select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */
- select_peripheral(PB(21), PERIPH_B, 0); /* SDO */
- select_peripheral(PB(22), PERIPH_B, 0); /* SDI */
- select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */
+ if (platform_device_add_data(pdev, data,
+ sizeof(struct ac97c_platform_data)))
+ goto err_add_resources;
+
+ select_peripheral(PB(20), PERIPH_B, 0); /* SDO */
+ select_peripheral(PB(21), PERIPH_B, 0); /* SYNC */
+ select_peripheral(PB(22), PERIPH_B, 0); /* SCLK */
+ select_peripheral(PB(23), PERIPH_B, 0); /* SDI */
+
+ if (data->reset_pin != GPIO_PIN_NONE)
+ at32_select_gpio(data->reset_pin, 0);
atmel_ac97c0_pclk.dev = &pdev->dev;
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 8816b66..0386a0e 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -76,7 +76,16 @@ struct mci_platform_data {
};
struct platform_device *
at32_add_device_mci(unsigned int id, struct mci_platform_data *data);
-struct platform_device *at32_add_device_ac97c(unsigned int id);
+
+struct ac97c_platform_data {
+ unsigned short dma_rx_periph_id;
+ unsigned short dma_tx_periph_id;
+ unsigned short dma_controller_id;
+ int reset_pin;
+};
+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 cf_platform_data {
--
1.5.2.5
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 90436fa..eba6f89 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -151,6 +151,15 @@ static void __init set_hw_addr(struct platform_device *pdev)
clk_put(pclk);
}
+#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+ .dma_rx_periph_id = 3,
+ .dma_tx_periph_id = 4,
+ .dma_controller_id = 0,
+ .reset_pin = GPIO_PIN_NONE,
+};
+#endif
+
#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
static void __init atstk1002_setup_extdac(void)
{
@@ -253,7 +262,7 @@ static int __init atstk1002_init(void)
#endif
at32_add_device_usba(0, NULL);
#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
- at32_add_device_ac97c(0);
+ at32_add_device_ac97c(0, &ac97c0_data);
#else
at32_add_device_abdac(0);
#endif
diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c
index 768d204..2564e3c 100644
--- a/arch/avr32/boards/atstk1000/atstk1003.c
+++ b/arch/avr32/boards/atstk1000/atstk1003.c
@@ -72,6 +72,15 @@ static struct cf_platform_data __initdata cf0_data = {
.cs = 4,
};
+#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+ .dma_rx_periph_id = 3,
+ .dma_tx_periph_id = 4,
+ .dma_controller_id = 0,
+ .reset_pin = GPIO_PIN_NONE,
+};
+#endif
+
#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
static void __init atstk1003_setup_extdac(void)
{
@@ -164,7 +173,7 @@ static int __init atstk1003_init(void)
#endif
at32_add_device_usba(0, NULL);
#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
- at32_add_device_ac97c(0);
+ at32_add_device_ac97c(0, &ac97c0_data);
#else
at32_add_device_abdac(0);
#endif
diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c
index 96015dd..3c25a6f 100644
--- a/arch/avr32/boards/atstk1000/atstk1004.c
+++ b/arch/avr32/boards/atstk1000/atstk1004.c
@@ -64,6 +64,15 @@ static struct spi_board_info spi1_board_info[] __initdata = { {
} };
#endif
+#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+static struct ac97c_platform_data __initdata ac97c0_data = {
+ .dma_rx_periph_id = 3,
+ .dma_tx_periph_id = 4,
+ .dma_controller_id = 0,
+ .reset_pin = GPIO_PIN_NONE,
+};
+#endif
+
#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
static void __init atstk1004_setup_extdac(void)
{
@@ -136,7 +145,7 @@ static int __init atstk1004_init(void)
fbmem_start, fbmem_size);
at32_add_device_usba(0, NULL);
#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
- at32_add_device_ac97c(0);
+ at32_add_device_ac97c(0, &ac97c0_data);
#else
at32_add_device_abdac(0);
#endif
--
1.5.2.5
--- a/arch/avr32/boards/atngw100/setup.c 2008-02-26 12:27:37.000000000 -0500
+++ b/arch/avr32/boards/atngw100/setup.c 2008-02-26 12:26:08.000000000 -0500
@@ -201,6 +201,13 @@ static struct platform_device i2c_gpio_d
};
#endif
+static struct ac97c_platform_data __initdata ac97c0_data = {
+ .dma_rx_periph_id = 3,
+ .dma_tx_periph_id = 4,
+ .dma_controller_id = 0,
+ .reset_pin = GPIO_PIN_NONE, // change to whatever pin you want, i.e. GPIO_PIN_PB(18)
+};
+
static int __init atngw100_init(void)
{
unsigned i;
@@ -222,7 +229,7 @@ static int __init atngw100_init(void)
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
at32_add_device_mci(0, &mci0_data);
at32_add_device_usba(0, NULL);
- at32_add_device_ac97c(0);
+ at32_add_device_ac97c(0, &ac97c0_data);
for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) {
at32_select_gpio(ngw_leds[i].gpio,
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