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mmc: core: Factor out some of the code in mmc_go_idle()

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Move some part out from mmc_go_idle() into a new function called
__mmc_go_idle(), allowing it to be re-used, which is shown from a
subsequent change.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Link: https://lore.kernel.org/r/20240913102836.6144-7-victorshihgli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Victor Shih 2024-09-13 18:28:20 +08:00 committed by Ulf Hansson
parent a9a75f9dc2
commit acbf2f3c72
2 changed files with 17 additions and 8 deletions
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24
drivers/mmc/core/mmc_ops.c
View File

@ -144,10 +144,24 @@ int mmc_set_dsr(struct mmc_host *host)
return mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
}
int __mmc_go_idle(struct mmc_host *host)
{
struct mmc_command cmd = {};
int err;
cmd.opcode = MMC_GO_IDLE_STATE;
cmd.arg = 0;
cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_NONE | MMC_CMD_BC;
err = mmc_wait_for_cmd(host, &cmd, 0);
mmc_delay(1);
return err;
}
int mmc_go_idle(struct mmc_host *host)
{
int err;
struct mmc_command cmd = {};
/*
* Non-SPI hosts need to prevent chipselect going active during
@ -163,13 +177,7 @@ int mmc_go_idle(struct mmc_host *host)
mmc_delay(1);
}
cmd.opcode = MMC_GO_IDLE_STATE;
cmd.arg = 0;
cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_NONE | MMC_CMD_BC;
err = mmc_wait_for_cmd(host, &cmd, 0);
mmc_delay(1);
err = __mmc_go_idle(host);
if (!mmc_host_is_spi(host)) {
mmc_set_chip_select(host, MMC_CS_DONTCARE);

1
drivers/mmc/core/mmc_ops.h
View File

@ -25,6 +25,7 @@ struct mmc_command;
int mmc_select_card(struct mmc_card *card);
int mmc_deselect_cards(struct mmc_host *host);
int mmc_set_dsr(struct mmc_host *host);
int __mmc_go_idle(struct mmc_host *host);
int mmc_go_idle(struct mmc_host *host);
int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
int mmc_set_relative_addr(struct mmc_card *card);