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e519f0bb64
A recent change to the OMAP driver making it use a dynamic GPIO
base created problems with some old OMAP1 board files, among
them Nokia 770, SX1 and also the OMAP2 Nokia n8x0.
Fix up all instances of GPIOs being used for the MMC driver
by pushing the handling of power, slot selection and MMC
"cover" into the driver as optional GPIOs.
This is maybe not the most perfect solution as the MMC
framework have some central handlers for some of the
stuff, but it at least makes the situtation better and
solves the immediate issue.
Fixes: 92bf78b33b ("gpio: omap: use dynamic allocation of base")
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* MMC definitions for OMAP2
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*
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* Copyright (C) 2006 Nokia Corporation
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*/
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#define OMAP_MMC_MAX_SLOTS 2
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struct mmc_card;
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struct omap_mmc_platform_data {
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/* back-link to device */
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struct device *dev;
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/* number of slots per controller */
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unsigned nr_slots:2;
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/* set if your board has components or wiring that limits the
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* maximum frequency on the MMC bus */
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unsigned int max_freq;
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/* initialize board-specific MMC functionality, can be NULL if
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* not supported */
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int (*init)(struct device *dev);
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void (*cleanup)(struct device *dev);
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void (*shutdown)(struct device *dev);
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/* Return context loss count due to PM states changing */
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int (*get_context_loss_count)(struct device *dev);
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/* Integrating attributes from the omap_hwmod layer */
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u8 controller_flags;
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/* Register offset deviation */
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u16 reg_offset;
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struct omap_mmc_slot_data {
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/*
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* 4/8 wires and any additional host capabilities
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* need to OR'd all capabilities (ref. linux/mmc/host.h)
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*/
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u8 wires; /* Used for the MMC driver on omap1 and 2420 */
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u32 caps; /* Used for the MMC driver on 2430 and later */
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u32 pm_caps; /* PM capabilities of the mmc */
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/*
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* nomux means "standard" muxing is wrong on this board, and
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* that board-specific code handled it before common init logic.
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*/
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unsigned nomux:1;
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/* switch pin can be for card detect (default) or card cover */
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unsigned cover:1;
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/* use the internal clock */
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unsigned internal_clock:1;
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/* nonremovable e.g. eMMC */
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unsigned nonremovable:1;
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/* Try to sleep or power off when possible */
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unsigned power_saving:1;
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/* If using power_saving and the MMC power is not to go off */
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unsigned no_off:1;
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/* eMMC does not handle power off when not in sleep state */
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unsigned no_regulator_off_init:1;
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/* Regulator off remapped to sleep */
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unsigned vcc_aux_disable_is_sleep:1;
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/* we can put the features above into this variable */
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#define MMC_OMAP7XX (1 << 3)
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#define MMC_OMAP15XX (1 << 4)
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#define MMC_OMAP16XX (1 << 5)
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unsigned features;
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int switch_pin; /* gpio (card detect) */
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int gpio_wp; /* gpio (write protect) */
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int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
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int (*set_power)(struct device *dev, int slot,
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int power_on, int vdd);
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int (*get_ro)(struct device *dev, int slot);
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void (*remux)(struct device *dev, int slot, int power_on);
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/* Call back before enabling / disabling regulators */
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void (*before_set_reg)(struct device *dev, int slot,
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int power_on, int vdd);
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/* Call back after enabling / disabling regulators */
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void (*after_set_reg)(struct device *dev, int slot,
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int power_on, int vdd);
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/* if we have special card, init it using this callback */
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void (*init_card)(struct mmc_card *card);
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/* return MMC cover switch state, can be NULL if not supported.
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*
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* possible return values:
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* 0 - closed
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* 1 - open
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*/
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int (*get_cover_state)(struct device *dev, int slot);
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const char *name;
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u32 ocr_mask;
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/* Card detection */
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int (*card_detect)(struct device *dev, int slot);
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unsigned int ban_openended:1;
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} slots[OMAP_MMC_MAX_SLOTS];
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};
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extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
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int is_closed);
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