Messages in this thread Patch in this message | | | From | Philipp Zabel <> | Subject | [PATCH 06/14] mmc: dw_mmc: simplify optional reset handling | Date | Mon, 30 Jan 2017 12:41:08 +0100 |
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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> Cc: Guodong Xu <guodong.xu@linaro.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> --- 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 b44306b886cb6..9039e8f81ff12 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2963,10 +2963,8 @@ 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); @@ -3090,7 +3088,7 @@ 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); @@ -3245,8 +3243,7 @@ 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); @@ -3278,8 +3275,7 @@ 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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