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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7838a8ddc8
Cover detection appears to be a feature protecting the SD card on mobile phones with a slide-cover, such as some Nokia phones. The idea seems to be to not allow access to the SD card when the cover is open. It is only usable with platform data from board files, but no board file in the kernel is using it, yet it takes up a sizeable chunk of code in the OMAP HSMMC driver. Since we do not add new board files for the OMAPs any target that need this should anyway reimplement it properly using the device tree, so delete this legacy code. The driver is marked as orphan in MAINTAINERS by the way. Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* struct omap_hsmmc_dev_attr.flags possibilities
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*
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* OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
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* operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
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* should be set if this is the case. See for example Section 22.5.3
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* "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
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* Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
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*
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* OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
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* don't work correctly on some MMC controller instances on some
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* OMAP3 SoCs; this flag should be set if this is the case. See
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* for example Advisory 2.1.1.128 "MMC: Multiple Block Read
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* Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
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* Revision F (October 2010) (SPRZ278F).
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*/
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#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
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#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
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#define OMAP_HSMMC_SWAKEUP_MISSING BIT(2)
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struct omap_hsmmc_dev_attr {
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u8 flags;
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};
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struct mmc_card;
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struct omap_hsmmc_platform_data {
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/* back-link to device */
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struct device *dev;
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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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/* 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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/*
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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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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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/* nonremovable e.g. eMMC */
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unsigned nonremovable: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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/* we can put the features above into this variable */
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#define HSMMC_HAS_PBIAS (1 << 0)
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#define HSMMC_HAS_UPDATED_RESET (1 << 1)
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#define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
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unsigned features;
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/* string specifying a particular variant of hardware */
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char *version;
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int gpio_cd; /* gpio (card detect) */
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int gpio_wp; /* gpio (write protect) */
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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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const char *name;
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u32 ocr_mask;
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};
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