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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2021-05-04 19:12:17 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-06-14 14:57:36 +0300 |
| commit | cec18ad93e35a219d2277dbbdbfedb4f83a7a220 (patch) | |
| tree | a6f15afc33dab00d5bd568789e7009403f9762a5 /drivers/mmc | |
| parent | 6fa79651cc808f68db6f6f297be5a950ccd5dffb (diff) | |
| download | linux-cec18ad93e35a219d2277dbbdbfedb4f83a7a220.tar.xz | |
mmc: core: Prepare mmc_send_cxd_data() to be re-used for additional cmds
The function mmc_send_cxd_data() sends a data read command of ADTC type and
prepares to receive an R1 response. To make it even more re-usable, let's
extend it with another in-parameter for the command argument. While at it,
let's also rename the function to mmc_send_adtc_data() as it better
describes its purpose.
Note that, this change doesn't add any new users of the function. Instead
that is done from subsequent changes.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20210504161222.101536-7-ulf.hansson@linaro.org
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 11 | ||||
| -rw-r--r-- | drivers/mmc/core/mmc_ops.h | 2 |
2 files changed, 7 insertions, 6 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 653627fe02a3..b1da8f1950ee 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -252,9 +252,8 @@ mmc_send_cxd_native(struct mmc_host *host, u32 arg, u32 *cxd, int opcode) * NOTE: void *buf, caller for the buf is required to use DMA-capable * buffer or on-stack buffer (with some overhead in callee). */ -static int -mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host, - u32 opcode, void *buf, unsigned len) +int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode, + u32 args, void *buf, unsigned len) { struct mmc_request mrq = {}; struct mmc_command cmd = {}; @@ -265,7 +264,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host, mrq.data = &data; cmd.opcode = opcode; - cmd.arg = 0; + cmd.arg = args; /* NOTE HACK: the MMC_RSP_SPI_R1 is always correct here, but we * rely on callers to never use this with "native" calls for reading @@ -311,7 +310,7 @@ static int mmc_spi_send_cxd(struct mmc_host *host, u32 *cxd, u32 opcode) if (!cxd_tmp) return -ENOMEM; - ret = mmc_send_cxd_data(NULL, host, opcode, cxd_tmp, 16); + ret = mmc_send_adtc_data(NULL, host, opcode, 0, cxd_tmp, 16); if (ret) goto err; @@ -359,7 +358,7 @@ int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd) if (!ext_csd) return -ENOMEM; - err = mmc_send_cxd_data(card, card->host, MMC_SEND_EXT_CSD, ext_csd, + err = mmc_send_adtc_data(card, card->host, MMC_SEND_EXT_CSD, 0, ext_csd, 512); if (err) kfree(ext_csd); diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h index aca66c128804..2b1d730e56bf 100644 --- a/drivers/mmc/core/mmc_ops.h +++ b/drivers/mmc/core/mmc_ops.h @@ -26,6 +26,8 @@ int mmc_set_dsr(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); +int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode, + u32 args, void *buf, unsigned len); int mmc_send_csd(struct mmc_card *card, u32 *csd); int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries); int mmc_send_status(struct mmc_card *card, u32 *status); |