5716fb9bd9
Switch the SPI MMC driver to use GPIO descriptors internally and just look those up using the standard slot GPIO functions mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Make sure to request index 0 and 1 in accordance with the SPI MMC DT binding, and add the same GPIOs in machine descriptor tables on all boards that use SPI MMC in board files. The lines are flagged as GPIO_ACTIVE_[LOW|HIGH] as that is what they are, and since we can now rely on the descriptors to have the right polarity, we set the "override_active_level" to false in mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Cc: Hartley Sweeten <hsweeten@visionengravers.com> # Vision EP9307 Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_SPI_MMC_SPI_H
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#define __LINUX_SPI_MMC_SPI_H
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#include <linux/spi/spi.h>
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#include <linux/interrupt.h>
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struct device;
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struct mmc_host;
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/* Put this in platform_data of a device being used to manage an MMC/SD
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* card slot. (Modeled after PXA mmc glue; see that for usage examples.)
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*
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* REVISIT This is not a spi-specific notion. Any card slot should be
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* able to handle it. If the MMC core doesn't adopt this kind of notion,
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* switch the "struct device *" parameters over to "struct spi_device *".
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*/
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struct mmc_spi_platform_data {
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/* driver activation and (optional) card detect irq hookup */
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int (*init)(struct device *,
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irqreturn_t (*)(int, void *),
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void *);
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void (*exit)(struct device *, void *);
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/* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */
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unsigned long caps;
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unsigned long caps2;
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/* how long to debounce card detect, in msecs */
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u16 detect_delay;
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/* power management */
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u16 powerup_msecs; /* delay of up to 250 msec */
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u32 ocr_mask; /* available voltages */
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void (*setpower)(struct device *, unsigned int maskval);
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};
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#ifdef CONFIG_OF
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extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi);
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extern void mmc_spi_put_pdata(struct spi_device *spi);
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#else
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static inline struct mmc_spi_platform_data *
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mmc_spi_get_pdata(struct spi_device *spi)
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{
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return spi->dev.platform_data;
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}
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static inline void mmc_spi_put_pdata(struct spi_device *spi) {}
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#endif /* CONFIG_OF */
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#endif /* __LINUX_SPI_MMC_SPI_H */
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