diff options
| author | Bean Huo <beanhuo@micron.com> | 2021-09-17 19:27:26 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-10-12 10:21:19 +0200 |
| commit | 9c6bb8c6a1a48608692f3c8c21be13b759ec9056 (patch) | |
| tree | d969e76302de580500f6be09c9a9925009f2aa68 | |
| parent | mmc: mmci: Add small comment about reset thread (diff) | |
| download | linux-9c6bb8c6a1a48608692f3c8c21be13b759ec9056.tar.xz linux-9c6bb8c6a1a48608692f3c8c21be13b759ec9056.zip | |
mmc: sdhci: Return true only when timeout exceeds capacity of the HW timer
Clean up sdhci_calc_timeout() a bit, and let it set too_big to be true only
when the timeout value required by the eMMC device exceeds the capability of
the host hardware timer.
Signed-off-by: Bean Huo <beanhuo@micron.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20210917172727.26834-2-huobean@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 7ae398f8d4d3..357b365bf0ec 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -930,7 +930,7 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, struct mmc_data *data; unsigned target_timeout, current_timeout; - *too_big = true; + *too_big = false; /* * If the host controller provides us with an incorrect timeout @@ -941,7 +941,7 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL) return host->max_timeout_count; - /* Unspecified command, asume max */ + /* Unspecified command, assume max */ if (cmd == NULL) return host->max_timeout_count; @@ -968,17 +968,14 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd, while (current_timeout < target_timeout) { count++; current_timeout <<= 1; - if (count > host->max_timeout_count) + if (count > host->max_timeout_count) { + if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) + DBG("Too large timeout 0x%x requested for CMD%d!\n", + count, cmd->opcode); + count = host->max_timeout_count; + *too_big = true; break; - } - - if (count > host->max_timeout_count) { - if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT)) - DBG("Too large timeout 0x%x requested for CMD%d!\n", - count, cmd->opcode); - count = host->max_timeout_count; - } else { - *too_big = false; + } } return count; |