pcm037: add SDHC card detection
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -28,6 +28,9 @@
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#include <linux/interrupt.h>
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#include <linux/interrupt.h>
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#include <linux/i2c.h>
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#include <linux/i2c.h>
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#include <linux/i2c/at24.h>
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#include <linux/i2c/at24.h>
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#include <linux/delay.h>
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#include <linux/spi/spi.h>
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#include <linux/irq.h>
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#include <mach/hardware.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach-types.h>
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@ -218,17 +221,41 @@ static struct i2c_board_info pcm037_i2c_devices[] = {
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};
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};
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#endif
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#endif
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static int pcm970_sdhc1_init(struct device *dev, irq_handler_t h, void *data)
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/* Not connected by default */
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#ifdef PCM970_SDHC_RW_SWITCH
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static int pcm970_sdhc1_get_ro(struct device *dev)
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{
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{
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return 0;
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return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_SFS6));
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}
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#endif
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static int pcm970_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
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void *data)
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{
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int ret;
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int gpio_det, gpio_wp;
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gpio_det = IOMUX_TO_GPIO(MX31_PIN_SCK6);
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gpio_wp = IOMUX_TO_GPIO(MX31_PIN_SFS6);
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gpio_direction_input(gpio_det);
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gpio_direction_input(gpio_wp);
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ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_SCK6), detect_irq,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"sdhc-detect", data);
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return ret;
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}
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}
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static void pcm970_sdhc1_exit(struct device *dev, void *data)
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static void pcm970_sdhc1_exit(struct device *dev, void *data)
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{
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{
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free_irq(IOMUX_TO_IRQ(MX31_PIN_SCK6), data);
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}
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}
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/* No card and rw detection at the moment */
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static struct imxmmc_platform_data sdhc_pdata = {
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static struct imxmmc_platform_data sdhc_pdata = {
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#ifdef PCM970_SDHC_RW_SWITCH
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.get_ro = pcm970_sdhc1_get_ro,
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#endif
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.init = pcm970_sdhc1_init,
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.init = pcm970_sdhc1_init,
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.exit = pcm970_sdhc1_exit,
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.exit = pcm970_sdhc1_exit,
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};
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};
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