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mmc: core: Add a retries parameter to __mmc_switch function

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Add command retries parameter to __mmc_switch(), let caller
pass retries according to the caller's condition.

Signed-off-by: Bean Huo <beanhuo@micron.com>
Link: https://lore.kernel.org/r/20210414212236.346813-2-huobean@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Bean Huo 2021-04-14 23:22:35 +02:00 committed by Ulf Hansson
parent 4b00ed3c50
commit 5e52a168be
3 changed files with 16 additions and 15 deletions
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22
drivers/mmc/core/mmc.c
View File

@ -1068,7 +1068,7 @@ static int mmc_select_hs(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, EXT_CSD_TIMING_HS,
card->ext_csd.generic_cmd6_time, MMC_TIMING_MMC_HS,
true, true);
true, true, MMC_CMD_RETRIES);
if (err)
pr_warn("%s: switch to high-speed failed, err:%d\n",
mmc_hostname(card->host), err);
@ -1100,7 +1100,7 @@ static int mmc_select_hs_ddr(struct mmc_card *card)
ext_csd_bits,
card->ext_csd.generic_cmd6_time,
MMC_TIMING_MMC_DDR52,
true, true);
true, true, MMC_CMD_RETRIES);
if (err) {
pr_err("%s: switch to bus width %d ddr failed\n",
mmc_hostname(host), 1 << bus_width);
@ -1168,7 +1168,7 @@ static int mmc_select_hs400(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err) {
pr_err("%s: switch to high-speed from hs200 failed, err:%d\n",
mmc_hostname(host), err);
@ -1210,7 +1210,7 @@ static int mmc_select_hs400(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err) {
pr_err("%s: switch to hs400 failed, err:%d\n",
mmc_hostname(host), err);
@ -1256,7 +1256,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
val = EXT_CSD_TIMING_HS;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
val, card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err)
goto out_err;
@ -1272,7 +1272,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
/* Switch HS DDR to HS */
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH,
EXT_CSD_BUS_WIDTH_8, card->ext_csd.generic_cmd6_time,
0, false, true);
0, false, true, MMC_CMD_RETRIES);
if (err)
goto out_err;
@ -1287,7 +1287,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
val, card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err)
goto out_err;
@ -1371,7 +1371,7 @@ static int mmc_select_hs400es(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, EXT_CSD_TIMING_HS,
card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err) {
pr_err("%s: switch to hs for hs400es failed, err:%d\n",
mmc_hostname(host), err);
@ -1405,7 +1405,7 @@ static int mmc_select_hs400es(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err) {
pr_err("%s: switch to hs400es failed, err:%d\n",
mmc_hostname(host), err);
@ -1470,7 +1470,7 @@ static int mmc_select_hs200(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time, 0,
false, true);
false, true, MMC_CMD_RETRIES);
if (err)
goto err;
old_timing = host->ios.timing;
@ -1975,7 +1975,7 @@ static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_POWER_OFF_NOTIFICATION,
notify_type, timeout, 0, false, false);
notify_type, timeout, 0, false, false, MMC_CMD_RETRIES);
if (err)
pr_err("%s: Power Off Notification timed out, %u\n",
mmc_hostname(card->host), timeout);

7
drivers/mmc/core/mmc_ops.c
View File

@ -532,12 +532,13 @@ int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
* @timing: new timing to change to
* @send_status: send status cmd to poll for busy
* @retry_crc_err: retry when CRC errors when polling with CMD13 for busy
* @retries: number of retries
*
* Modifies the EXT_CSD register for selected card.
*/
int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms, unsigned char timing,
bool send_status, bool retry_crc_err)
bool send_status, bool retry_crc_err, unsigned int retries)
{
struct mmc_host *host = card->host;
int err;
@ -577,7 +578,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
cmd.flags |= MMC_RSP_SPI_R1 | MMC_RSP_R1;
}
err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
err = mmc_wait_for_cmd(host, &cmd, retries);
if (err)
goto out;
@ -612,7 +613,7 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms)
{
return __mmc_switch(card, set, index, value, timeout_ms, 0,
true, false);
true, false, MMC_CMD_RETRIES);
}
EXPORT_SYMBOL_GPL(mmc_switch);

2
drivers/mmc/core/mmc_ops.h
View File

@ -39,7 +39,7 @@ int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
enum mmc_busy_cmd busy_cmd);
int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms, unsigned char timing,
bool send_status, bool retry_crc_err);
bool send_status, bool retry_crc_err, unsigned int retries);
int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms);
void mmc_run_bkops(struct mmc_card *card);