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| author |   Philipp Zabel <p.zabel@pengutronix.de> | 2021-03-05 10:07:24 +0100 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2021-03-30 11:42:02 +0200 |
| commit | baf6fe4036421ca9ebf5087c117ffe5bdb5dc436 (patch) | |
| tree | e1cab1f2affec495decc80dc5ac1dc4866a3a4a1 /drivers/mmc/host/dw_mmc.c | |
| parent | mmc: sdhci-st: simplify optional reset handling (diff) | |
| download | linux-dev-baf6fe4036421ca9ebf5087c117ffe5bdb5dc436.tar.xz linux-dev-baf6fe4036421ca9ebf5087c117ffe5bdb5dc436.zip | |
mmc: dw_mmc: simplify optional reset handling
As of commit bb475230b8e5 ("reset: make optional functions really
optional"), the reset framework API calls use NULL pointers to describe
optional, non-present reset controls.
This allows to return errors from devm_reset_control_get_optional and to
call reset_control_(de)assert unconditionally.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20210305090724.18832-1-p.zabel@pengutronix.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc.c')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 3974525e6f6a..d333130d1531 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -3093,10 +3093,8 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) /* find reset controller when exist */ pdata->rstc = devm_reset_control_get_optional_exclusive(dev, "reset"); - if (IS_ERR(pdata->rstc)) { - if (PTR_ERR(pdata->rstc) == -EPROBE_DEFER) - return ERR_PTR(-EPROBE_DEFER); - } + if (IS_ERR(pdata->rstc)) + return ERR_CAST(pdata->rstc); if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth)) dev_info(dev, @@ -3202,7 +3200,7 @@ int dw_mci_probe(struct dw_mci *host) goto err_clk_ciu; } - if (!IS_ERR(host->pdata->rstc)) { + if (host->pdata->rstc) { reset_control_assert(host->pdata->rstc); usleep_range(10, 50); reset_control_deassert(host->pdata->rstc); @@ -3342,8 +3340,7 @@ err_dmaunmap: if (host->use_dma && host->dma_ops->exit) host->dma_ops->exit(host); - if (!IS_ERR(host->pdata->rstc)) - reset_control_assert(host->pdata->rstc); + reset_control_assert(host->pdata->rstc); err_clk_ciu: clk_disable_unprepare(host->ciu_clk); @@ -3371,8 +3368,7 @@ void dw_mci_remove(struct dw_mci *host) if (host->use_dma && host->dma_ops->exit) host->dma_ops->exit(host); - if (!IS_ERR(host->pdata->rstc)) - reset_control_assert(host->pdata->rstc); + reset_control_assert(host->pdata->rstc); clk_disable_unprepare(host->ciu_clk); clk_disable_unprepare(host->biu_clk); |