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bac806830f
To support the need for host specific tuning for SD high-speed mode, let's add two new optional callbacks, ->prepare|execute_sd_hs_tuning() and let's call them when switching into the SD high-speed mode. Note that, during the tuning process it's also needed for host drivers to send commands to the SD card to verify that the tuning process succeeds. Therefore, let's also share the corresponding functions from the core to allow this. Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com> Link: https://lore.kernel.org/r/20230825091743.15613-2-wenchao.chen@unisoc.com [Ulf: Dropped unnecessary function declarations and updated the commit msg] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
27 lines
726 B
C
27 lines
726 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* linux/drivers/mmc/core/sd_ops.h
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*
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* Copyright 2006-2007 Pierre Ossman
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*/
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#ifndef _MMC_SD_OPS_H
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#define _MMC_SD_OPS_H
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#include <linux/types.h>
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struct mmc_card;
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struct mmc_host;
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int mmc_app_set_bus_width(struct mmc_card *card, int width);
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int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
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int mmc_send_if_cond(struct mmc_host *host, u32 ocr);
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int mmc_send_if_cond_pcie(struct mmc_host *host, u32 ocr);
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int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca);
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int mmc_app_send_scr(struct mmc_card *card);
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int mmc_app_sd_status(struct mmc_card *card, void *ssr);
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int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card);
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#endif
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