diff mbox series

[v4,2/4] gpu: drm: sii902x: Use devm_regulator_bulk_get_enable()

Message ID 1ed8351c2cb4911fcda21b97f7a7b089e955c301.1666357434.git.mazziesaccount@gmail.com (mailing list archive)
State New, archived
Delegated to: Neil Armstrong
Headers show
Series Use devm helpers for regulator get and enable | expand

Commit Message

Matti Vaittinen Oct. 21, 2022, 1:18 p.m. UTC 
Simplify using devm_regulator_bulk_get_enable()

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>

---
v3 => v4:
- split to own patch.
- return directly the value returned by the dev_err_probe()

Please note - this is only compile-tested due to the lack of HW. Careful
review and testing is _highly_ appreciated
---
 drivers/gpu/drm/bridge/sii902x.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

Comments

Matti Vaittinen Oct. 21, 2022, 1:24 p.m. UTC | #1 
On 10/21/22 16:18, Matti Vaittinen wrote:
> Simplify using devm_regulator_bulk_get_enable()
> 
> Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
> Reviewed-by: Robert Foss <robert.foss@linaro.org>

Robert, I did slightly modify the return from probe when using the 
dev_err_probe(). I still decided to keep your RBT - please let me know 
if you disagree.

Eg, this:
> -	if (ret < 0) {
> -		dev_err_probe(dev, ret, "Failed to enable supplies");
> -		return ret;
> -	}

was converted to:
 >   	if (ret < 0)
> +		return dev_err_probe(dev, ret, "Failed to enable supplies");

Yours
	-- Matti
Robert Foss Oct. 24, 2022, 3:47 p.m. UTC | #2 
On Fri, 21 Oct 2022 at 15:24, Matti Vaittinen <mazziesaccount@gmail.com> wrote:
>
> On 10/21/22 16:18, Matti Vaittinen wrote:
> > Simplify using devm_regulator_bulk_get_enable()
> >
> > Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
> > Reviewed-by: Robert Foss <robert.foss@linaro.org>
>
> Robert, I did slightly modify the return from probe when using the
> dev_err_probe(). I still decided to keep your RBT - please let me know
> if you disagree.

Not a problem. In fact, feel free to upgrade it to an acked-by, to
simplify merging this series.

Acked-by: Robert Foss <robert.foss@linaro.org>

>
> Eg, this:
> > -     if (ret < 0) {
> > -             dev_err_probe(dev, ret, "Failed to enable supplies");
> > -             return ret;
> > -     }
>
> was converted to:
>  >      if (ret < 0)
> > +             return dev_err_probe(dev, ret, "Failed to enable supplies");
>
> Yours
>         -- Matti
>
> --
> Matti Vaittinen
> Linux kernel developer at ROHM Semiconductors
> Oulu Finland
>
> ~~ When things go utterly wrong vim users can always type :help! ~~
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index 878fb7d3732b..f6e8b401069b 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -171,7 +171,6 @@  struct sii902x {
 	struct drm_connector connector;
 	struct gpio_desc *reset_gpio;
 	struct i2c_mux_core *i2cmux;
-	struct regulator_bulk_data supplies[2];
 	bool sink_is_hdmi;
 	/*
 	 * Mutex protects audio and video functions from interfering
@@ -1072,6 +1071,7 @@  static int sii902x_probe(struct i2c_client *client,
 	struct device *dev = &client->dev;
 	struct device_node *endpoint;
 	struct sii902x *sii902x;
+	static const char * const supplies[] = {"iovcc", "cvcc12"};
 	int ret;
 
 	ret = i2c_check_functionality(client->adapter,
@@ -1122,27 +1122,11 @@  static int sii902x_probe(struct i2c_client *client,
 
 	mutex_init(&sii902x->mutex);
 
-	sii902x->supplies[0].supply = "iovcc";
-	sii902x->supplies[1].supply = "cvcc12";
-	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(sii902x->supplies),
-				      sii902x->supplies);
+	ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(supplies), supplies);
 	if (ret < 0)
-		return ret;
-
-	ret = regulator_bulk_enable(ARRAY_SIZE(sii902x->supplies),
-				    sii902x->supplies);
-	if (ret < 0) {
-		dev_err_probe(dev, ret, "Failed to enable supplies");
-		return ret;
-	}
+		return dev_err_probe(dev, ret, "Failed to enable supplies");
 
-	ret = sii902x_init(sii902x);
-	if (ret < 0) {
-		regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies),
-				       sii902x->supplies);
-	}
-
-	return ret;
+	return sii902x_init(sii902x);
 }
 
 static void sii902x_remove(struct i2c_client *client)
@@ -1152,8 +1136,6 @@  static void sii902x_remove(struct i2c_client *client)
 
 	i2c_mux_del_adapters(sii902x->i2cmux);
 	drm_bridge_remove(&sii902x->bridge);
-	regulator_bulk_disable(ARRAY_SIZE(sii902x->supplies),
-			       sii902x->supplies);
 }
 
 static const struct of_device_id sii902x_dt_ids[] = {