Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1601322

[PATCH v2 03/14] [media] coda: simplify optional reset handling

From Philipp Zabel <p.zabel@pengutronix.de>
Newsgroups linux.kernel
Subject [PATCH v2 03/14] [media] coda: simplify optional reset handling
Date 2017-03-15 12:40 +0100
Message-ID <tlfrB-6ZQ-37@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Show all headers | View 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
without special cases and to call reset_control_reset unconditionally.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/media/platform/coda/coda-common.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index eb6548f46cbac..0cf667ab44bfb 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1982,8 +1982,7 @@ static int coda_hw_init(struct coda_dev *dev)
 	if (ret)
 		goto err_clk_ahb;
 
-	if (dev->rstc)
-		reset_control_reset(dev->rstc);
+	reset_control_reset(dev->rstc);
 
 	/*
 	 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
@@ -2362,13 +2361,8 @@ static int coda_probe(struct platform_device *pdev)
 	dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
 	if (IS_ERR(dev->rstc)) {
 		ret = PTR_ERR(dev->rstc);
-		if (ret == -ENOENT || ret == -ENOTSUPP) {
-			dev->rstc = NULL;
-		} else {
-			dev_err(&pdev->dev, "failed get reset control: %d\n",
-				ret);
-			return ret;
-		}
+		dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
+		return ret;
 	}
 
 	/* Get IRAM pool from device tree or platform data */
-- 
2.11.0

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

[PATCH v2 03/14] [media] coda: simplify optional reset handling Philipp Zabel <p.zabel@pengutronix.de> - 2017-03-15 12:40 +0100
  Re: [PATCH v2 03/14] [media] coda: simplify optional reset handling Hans Verkuil <hverkuil@xs4all.nl> - 2017-03-20 11:30 +0100
    Re: [PATCH v2 03/14] [media] coda: simplify optional reset handling Philipp Zabel <p.zabel@pengutronix.de> - 2017-03-20 11:40 +0100

csiph-web