From: p.zabel@pengutronix.de (Philipp Zabel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/14] crypto: sun4i-ss - simplify optional reset handling
Date: Mon, 30 Jan 2017 12:41:03 +0100 [thread overview]
Message-ID: <20170130114116.22089-1-p.zabel@pengutronix.de> (raw)
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: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/crypto/sunxi-ss/sun4i-ss-core.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-core.c b/drivers/crypto/sunxi-ss/sun4i-ss-core.c
index 3ac6c6c4ad18e..e310e311d23ea 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss-core.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-core.c
@@ -258,10 +258,11 @@ static int sun4i_ss_probe(struct platform_device *pdev)
ss->reset = devm_reset_control_get_optional(&pdev->dev, "ahb");
if (IS_ERR(ss->reset)) {
- if (PTR_ERR(ss->reset) == -EPROBE_DEFER)
- return PTR_ERR(ss->reset);
- dev_info(&pdev->dev, "no reset control found\n");
- ss->reset = NULL;
+ err = PTR_ERR(ss->reset);
+ if (err == -EPROBE_DEFER)
+ return err;
+ dev_err(&pdev->dev, "Cannot get reset control err=%d\n", err);
+ return err;
}
/* Enable both clocks */
@@ -287,12 +288,10 @@ static int sun4i_ss_probe(struct platform_device *pdev)
}
/* Deassert reset if we have a reset control */
- if (ss->reset) {
- err = reset_control_deassert(ss->reset);
- if (err) {
- dev_err(&pdev->dev, "Cannot deassert reset control\n");
- goto error_clk;
- }
+ err = reset_control_deassert(ss->reset);
+ if (err) {
+ dev_err(&pdev->dev, "Cannot deassert reset control\n");
+ goto error_clk;
}
/*
@@ -372,8 +371,7 @@ static int sun4i_ss_probe(struct platform_device *pdev)
break;
}
}
- if (ss->reset)
- reset_control_assert(ss->reset);
+ reset_control_assert(ss->reset);
error_clk:
clk_disable_unprepare(ss->ssclk);
error_ssclk:
@@ -398,8 +396,7 @@ static int sun4i_ss_remove(struct platform_device *pdev)
}
writel(0, ss->base + SS_CTL);
- if (ss->reset)
- reset_control_assert(ss->reset);
+ reset_control_assert(ss->reset);
clk_disable_unprepare(ss->busclk);
clk_disable_unprepare(ss->ssclk);
return 0;
--
2.11.0
next reply other threads:[~2017-01-30 11:41 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-30 11:41 Philipp Zabel [this message]
2017-01-30 11:41 ` [PATCH 02/14] i2c: mv64xxx: simplify optional reset handling Philipp Zabel
2017-01-30 11:41 ` [PATCH 03/14] [media] coda: " Philipp Zabel
2017-01-30 11:41 ` [PATCH 04/14] [media] st_rc: " Philipp Zabel
2017-01-30 12:33 ` Patrice CHOTARD
2017-01-30 11:41 ` [PATCH 05/14] [media] rc: sunxi-cir: " Philipp Zabel
2017-01-30 11:41 ` [PATCH 06/14] mmc: dw_mmc: " Philipp Zabel
2017-01-31 11:52 ` Ulf Hansson
2017-01-31 17:21 ` Philipp Zabel
2017-01-30 11:41 ` [PATCH 07/14] mmc: sdhci-st: " Philipp Zabel
2017-01-30 11:41 ` [PATCH 08/14] mmc: sunxi: " Philipp Zabel
2017-01-31 3:50 ` Chen-Yu Tsai
2017-01-30 11:41 ` [PATCH 09/14] mtd: nand: " Philipp Zabel
2017-01-30 12:44 ` Boris Brezillon
2017-01-31 17:20 ` Philipp Zabel
2017-01-31 17:21 ` Philipp Zabel
2017-01-30 11:41 ` [PATCH 10/14] phy: meson8b-usb2: " Philipp Zabel
2017-02-14 23:36 ` Martin Blumenstingl
2017-02-15 16:43 ` Jerome Brunet
2017-02-15 16:52 ` Philipp Zabel
2017-01-30 11:41 ` [PATCH 11/14] serial: 8250_dw: " Philipp Zabel
2017-02-02 22:21 ` Andy Shevchenko
2017-02-07 16:48 ` Philipp Zabel
2017-02-07 16:48 ` Philipp Zabel
2017-01-30 11:41 ` [PATCH 12/14] usb: dwc2: " Philipp Zabel
2017-01-31 0:28 ` John Youn
2017-01-31 0:39 ` John Youn
2017-04-10 10:21 ` Felipe Balbi
2017-04-10 10:36 ` Philipp Zabel
2017-04-10 11:23 ` Felipe Balbi
2017-01-30 11:41 ` [PATCH 13/14] usb: host: ehci-st: " Philipp Zabel
2017-01-30 11:41 ` [PATCH 14/14] ASoC: sunxi: " Philipp Zabel
2017-01-30 12:30 ` Mark Brown
2017-01-30 13:45 ` Philipp Zabel
2017-01-31 3:49 ` Chen-Yu Tsai
2017-01-31 21:00 ` Mark Brown
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