diff options
| author |   Adrian Hunter <adrian.hunter@intel.com> | 2022-09-26 22:20:21 +0300 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2022-09-28 10:08:50 +0200 |
| commit | 6fbde9e98a580feec73f3e1677c1f4b7a1ce8c64 (patch) | |
| tree | 42078eb224414f5b48f318e01eb6db7a4330dd54 /drivers/mmc | |
| parent | mmc: sdhci: Remove misleading comment about resets (diff) | |
| download | linux-dev-6fbde9e98a580feec73f3e1677c1f4b7a1ce8c64.tar.xz linux-dev-6fbde9e98a580feec73f3e1677c1f4b7a1ce8c64.zip | |
mmc: sdhci: Get rid of SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS
SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS is used by only ENE controllers but can
be replaced by driver code.
Amend the ENE code to hook the ->set_ios() mmc host operation and do the
reset there.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20220926192022.85660-4-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci-core.c | 23 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 8 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 2 |
3 files changed, 22 insertions, 11 deletions
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 622b7de96c7f..169b84761041 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -297,6 +297,27 @@ static const struct sdhci_pci_fixes sdhci_ricoh_mmc = { SDHCI_QUIRK_MISSING_CAPS }; +static void ene_714_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) +{ + struct sdhci_host *host = mmc_priv(mmc); + + sdhci_set_ios(mmc, ios); + + /* + * Some (ENE) controllers misbehave on some ios operations, + * signalling timeout and CRC errors even on CMD0. Resetting + * it on each ios seems to solve the problem. + */ + if (!(host->flags & SDHCI_DEVICE_DEAD)) + sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); +} + +static int ene_714_probe_slot(struct sdhci_pci_slot *slot) +{ + slot->host->mmc_host_ops.set_ios = ene_714_set_ios; + return 0; +} + static const struct sdhci_pci_fixes sdhci_ene_712 = { .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | SDHCI_QUIRK_BROKEN_DMA, @@ -304,8 +325,8 @@ static const struct sdhci_pci_fixes sdhci_ene_712 = { static const struct sdhci_pci_fixes sdhci_ene_714 = { .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE | - SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | SDHCI_QUIRK_BROKEN_DMA, + .probe_slot = ene_714_probe_slot, }; static const struct sdhci_pci_fixes sdhci_cafe = { diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 4d672e74468f..ff4342d04e73 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2407,14 +2407,6 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) host->ops->set_clock(host, host->clock); } else sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); - - /* - * Some (ENE) controllers go apeshit on some ios operation, - * signalling timeout and CRC errors even on CMD0. Resetting - * it on each ios seems to solve the problem. - */ - if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS) - sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); } EXPORT_SYMBOL_GPL(sdhci_set_ios); diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 95a08f09df30..d750c464bd1e 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -379,8 +379,6 @@ struct sdhci_host { #define SDHCI_QUIRK_NO_CARD_NO_RESET (1<<2) /* Controller doesn't like clearing the power reg before a change */ #define SDHCI_QUIRK_SINGLE_POWER_WRITE (1<<3) -/* Controller has flaky internal state so reset it on each ios change */ -#define SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS (1<<4) /* Controller has an unusable DMA engine */ #define SDHCI_QUIRK_BROKEN_DMA (1<<5) /* Controller has an unusable ADMA engine */ |