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@xxxxxxxxxxxxxx>
---
drivers/mmc/host/dw_mmc.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index a9ac0b4573131..3d62b0a1f81cb 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2968,10 +2968,8 @@ 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(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);
/* find out number of slots supported */
of_property_read_u32(np, "num-slots", &pdata->num_slots);
@@ -3100,7 +3098,7 @@ int dw_mci_probe(struct dw_mci *host)
}
}
- 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);
@@ -3257,8 +3255,7 @@ int dw_mci_probe(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);
err_clk_ciu:
clk_disable_unprepare(host->ciu_clk);
@@ -3290,8 +3287,7 @@ 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);
--
2.11.0
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