diff mbox series

leds: cros_ec: Implement review comments from Lee

Message ID 20240614-cros_ec-led-review-v1-1-946f2549fac2@weissschuh.net (mailing list archive)
State Handled Elsewhere
Headers show
Series leds: cros_ec: Implement review comments from Lee | expand

Commit Message

Thomas Weißschuh June 14, 2024, 10:04 a.m. UTC
Implement review comments from Lee as requested in [0] for
"leds: Add ChromeOS EC driver".

Changes:
* Inline DRV_NAME string constant.
* Use dev_err() instead of dev_warn() to report errors.
* Rename cros_ec_led_probe_led() to cros_ec_led_probe_one().
* Make loop variable "int" where they belong.
* Move "Unknown LED" comment to where it belongs.
* Register trigger during _probe().
* Use module_platform_driver() and drop all the custom boilerplate.

[0] https://lore.kernel.org/lkml/20240614093445.GF3029315@google.com/T/#m8750abdef6a968ace765645189170814196c9ce9

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 drivers/leds/leds-cros_ec.c | 50 +++++++++++++--------------------------------
 1 file changed, 14 insertions(+), 36 deletions(-)


---
base-commit: b6774dd948171c478c7aa19318b1d7ae9cf6d7a4
change-id: 20240614-cros_ec-led-review-ec93abc65933

Best regards,

Comments

Lee Jones June 20, 2024, 9:31 a.m. UTC | #1
Definitely not seen a commit message like that before

> Implement review comments from Lee as requested in [0] for
> "leds: Add ChromeOS EC driver".
> 
> Changes:
> * Inline DRV_NAME string constant.
> * Use dev_err() instead of dev_warn() to report errors.
> * Rename cros_ec_led_probe_led() to cros_ec_led_probe_one().
> * Make loop variable "int" where they belong.
> * Move "Unknown LED" comment to where it belongs.
> * Register trigger during _probe().
> * Use module_platform_driver() and drop all the custom boilerplate.

If you're fixing many things, then I would expect to receive many
patches.  One patch for functional change please.  If you can reasonably
group fixes of similar elk, then please do.  However one patch that does
a bunch of different things is a no-go from me, sorry.

> [0] https://lore.kernel.org/lkml/20240614093445.GF3029315@google.com/T/#m8750abdef6a968ace765645189170814196c9ce9
> 
> Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
> ---
>  drivers/leds/leds-cros_ec.c | 50 +++++++++++++--------------------------------
>  1 file changed, 14 insertions(+), 36 deletions(-)
> 
> diff --git a/drivers/leds/leds-cros_ec.c b/drivers/leds/leds-cros_ec.c
> index 7bb21a587713..275522b81ea5 100644
> --- a/drivers/leds/leds-cros_ec.c
> +++ b/drivers/leds/leds-cros_ec.c
> @@ -14,8 +14,6 @@
>  #include <linux/platform_data/cros_ec_commands.h>
>  #include <linux/platform_data/cros_ec_proto.h>
>  
> -#define DRV_NAME	"cros-ec-led"
> -
>  static const char * const cros_ec_led_functions[] = {
>  	[EC_LED_ID_BATTERY_LED]            = LED_FUNCTION_CHARGING,
>  	[EC_LED_ID_POWER_LED]              = LED_FUNCTION_POWER,
> @@ -152,7 +150,7 @@ static int cros_ec_led_count_subleds(struct device *dev,
>  
>  		if (common_range != range) {
>  			/* The multicolor LED API expects a uniform max_brightness */
> -			dev_warn(dev, "Inconsistent LED brightness values\n");
> +			dev_err(dev, "Inconsistent LED brightness values\n");
>  			return -EINVAL;
>  		}
>  	}
> @@ -176,22 +174,21 @@ static const char *cros_ec_led_get_color_name(struct led_classdev_mc *led_mc_cde
>  	return led_get_color_name(color);
>  }
>  
> -static int cros_ec_led_probe_led(struct device *dev, struct cros_ec_device *cros_ec,
> +static int cros_ec_led_probe_one(struct device *dev, struct cros_ec_device *cros_ec,
>  				 enum ec_led_id id)
>  {
>  	union cros_ec_led_cmd_data arg = {};
>  	struct cros_ec_led_priv *priv;
>  	struct led_classdev *led_cdev;
>  	struct mc_subled *subleds;
> -	int ret, num_subleds;
> -	size_t i, subled;
> +	int i, ret, num_subleds;
> +	size_t subled;
>  
>  	arg.req.led_id = id;
>  	arg.req.flags = EC_LED_FLAGS_QUERY;
>  	ret = cros_ec_led_send_cmd(cros_ec, &arg);
> -	/* Unknown LED, skip */
>  	if (ret == -EINVAL)
> -		return 0;
> +		return 0; /* Unknown LED, skip */
>  	if (ret == -EOPNOTSUPP)
>  		return -ENODEV;
>  	if (ret < 0)
> @@ -247,11 +244,14 @@ static int cros_ec_led_probe(struct platform_device *pdev)
>  	struct device *dev = &pdev->dev;
>  	struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent);
>  	struct cros_ec_device *cros_ec = ec_dev->ec_dev;
> -	int ret = 0;
> -	size_t i;
> +	int i, ret = 0;
> +
> +	ret = devm_led_trigger_register(dev, &cros_ec_led_trigger);
> +	if (ret)
> +		return ret;
>  
>  	for (i = 0; i < EC_LED_ID_COUNT; i++) {
> -		ret = cros_ec_led_probe_led(dev, cros_ec, i);
> +		ret = cros_ec_led_probe_one(dev, cros_ec, i);
>  		if (ret)
>  			break;
>  	}
> @@ -260,38 +260,16 @@ static int cros_ec_led_probe(struct platform_device *pdev)
>  }
>  
>  static const struct platform_device_id cros_ec_led_id[] = {
> -	{ DRV_NAME, 0 },
> +	{ "cros-ec-led", 0 },
>  	{}
>  };
>  
>  static struct platform_driver cros_ec_led_driver = {
> -	.driver.name	= DRV_NAME,
> +	.driver.name	= "cros-ec-led",
>  	.probe		= cros_ec_led_probe,
>  	.id_table	= cros_ec_led_id,
>  };
> -
> -static int __init cros_ec_led_init(void)
> -{
> -	int ret;
> -
> -	ret = led_trigger_register(&cros_ec_led_trigger);
> -	if (ret)
> -		return ret;
> -
> -	ret = platform_driver_register(&cros_ec_led_driver);
> -	if (ret)
> -		led_trigger_unregister(&cros_ec_led_trigger);
> -
> -	return ret;
> -};
> -module_init(cros_ec_led_init);
> -
> -static void __exit cros_ec_led_exit(void)
> -{
> -	platform_driver_unregister(&cros_ec_led_driver);
> -	led_trigger_unregister(&cros_ec_led_trigger);
> -};
> -module_exit(cros_ec_led_exit);
> +module_platform_driver(cros_ec_led_driver);
>  
>  MODULE_DEVICE_TABLE(platform, cros_ec_led_id);
>  MODULE_DESCRIPTION("ChromeOS EC LED Driver");
> 
> ---
> base-commit: b6774dd948171c478c7aa19318b1d7ae9cf6d7a4
> change-id: 20240614-cros_ec-led-review-ec93abc65933
> 
> Best regards,
> -- 
> Thomas Weißschuh <linux@weissschuh.net>
>
Thomas Weißschuh June 20, 2024, 10:12 a.m. UTC | #2
Hi Lee,

On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> Definitely not seen a commit message like that before

I assumed that this patch would be squashed into the original commit.

My question in which form you wanted the changes should have included
"incremental series".

> > Implement review comments from Lee as requested in [0] for
> > "leds: Add ChromeOS EC driver".
> > 
> > Changes:
> > * Inline DRV_NAME string constant.
> > * Use dev_err() instead of dev_warn() to report errors.
> > * Rename cros_ec_led_probe_led() to cros_ec_led_probe_one().
> > * Make loop variable "int" where they belong.
> > * Move "Unknown LED" comment to where it belongs.
> > * Register trigger during _probe().
> > * Use module_platform_driver() and drop all the custom boilerplate.
> 
> If you're fixing many things, then I would expect to receive many
> patches.  One patch for functional change please.  If you can reasonably
> group fixes of similar elk, then please do.  However one patch that does
> a bunch of different things is a no-go from me, sorry.

Absolutely, if these changes are to end up as actual commits then they
need to look different.
I'll resend them as proper series.

> > [0] https://lore.kernel.org/lkml/20240614093445.GF3029315@google.com/T/#m8750abdef6a968ace765645189170814196c9ce9
> > 
> > Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
> > ---
> >  drivers/leds/leds-cros_ec.c | 50 +++++++++++++--------------------------------
> >  1 file changed, 14 insertions(+), 36 deletions(-)

<snip>

Sorry for the confusion,
Thomas
Lee Jones June 20, 2024, 12:27 p.m. UTC | #3
On Thu, 20 Jun 2024, Thomas Weißschuh wrote:

> Hi Lee,
> 
> On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> > Definitely not seen a commit message like that before
> 
> I assumed that this patch would be squashed into the original commit.
> 
> My question in which form you wanted the changes should have included
> "incremental series".

Incremental means on top.

A lot of maintainers don't support history re-writes, but I've reserved
that right since forever, so I can squash it if you like.

> > > Implement review comments from Lee as requested in [0] for
> > > "leds: Add ChromeOS EC driver".
> > > 
> > > Changes:
> > > * Inline DRV_NAME string constant.
> > > * Use dev_err() instead of dev_warn() to report errors.
> > > * Rename cros_ec_led_probe_led() to cros_ec_led_probe_one().
> > > * Make loop variable "int" where they belong.
> > > * Move "Unknown LED" comment to where it belongs.
> > > * Register trigger during _probe().
> > > * Use module_platform_driver() and drop all the custom boilerplate.
> > 
> > If you're fixing many things, then I would expect to receive many
> > patches.  One patch for functional change please.  If you can reasonably
> > group fixes of similar elk, then please do.  However one patch that does
> > a bunch of different things is a no-go from me, sorry.
> 
> Absolutely, if these changes are to end up as actual commits then they
> need to look different.
> I'll resend them as proper series.
> 
> > > [0] https://lore.kernel.org/lkml/20240614093445.GF3029315@google.com/T/#m8750abdef6a968ace765645189170814196c9ce9
> > > 
> > > Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
> > > ---
> > >  drivers/leds/leds-cros_ec.c | 50 +++++++++++++--------------------------------
> > >  1 file changed, 14 insertions(+), 36 deletions(-)
> 
> <snip>
> 
> Sorry for the confusion,
> Thomas
Thomas Weißschuh June 20, 2024, 2:38 p.m. UTC | #4
On 2024-06-20 13:27:41+0000, Lee Jones wrote:
> On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> 
> > Hi Lee,
> > 
> > On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> > > Definitely not seen a commit message like that before
> > 
> > I assumed that this patch would be squashed into the original commit.
> > 
> > My question in which form you wanted the changes should have included
> > "incremental series".
> 
> Incremental means on top.
> 
> A lot of maintainers don't support history re-writes, but I've reserved
> that right since forever, so I can squash it if you like.

If it is already visible somewhere and a squash would inconvenience
anybody I'll resend it.
But if not I'd be happy about a squash.

(I couldn't and still can't find the public tree where driver is in)

> > > > Implement review comments from Lee as requested in [0] for
> > > > "leds: Add ChromeOS EC driver".
> > > > 
> > > > Changes:
> > > > * Inline DRV_NAME string constant.
> > > > * Use dev_err() instead of dev_warn() to report errors.
> > > > * Rename cros_ec_led_probe_led() to cros_ec_led_probe_one().
> > > > * Make loop variable "int" where they belong.
> > > > * Move "Unknown LED" comment to where it belongs.
> > > > * Register trigger during _probe().
> > > > * Use module_platform_driver() and drop all the custom boilerplate.
> > > 
> > > If you're fixing many things, then I would expect to receive many
> > > patches.  One patch for functional change please.  If you can reasonably
> > > group fixes of similar elk, then please do.  However one patch that does
> > > a bunch of different things is a no-go from me, sorry.
> > 
> > Absolutely, if these changes are to end up as actual commits then they
> > need to look different.
> > I'll resend them as proper series.
> > 
> > > > [0] https://lore.kernel.org/lkml/20240614093445.GF3029315@google.com/T/#m8750abdef6a968ace765645189170814196c9ce9
> > > > 
> > > > Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
> > > > ---
> > > >  drivers/leds/leds-cros_ec.c | 50 +++++++++++++--------------------------------
> > > >  1 file changed, 14 insertions(+), 36 deletions(-)
> > 
> > <snip>
> > 
> > Sorry for the confusion,
> > Thomas
> 
> -- 
> Lee Jones [李琼斯]
Lee Jones June 20, 2024, 5:13 p.m. UTC | #5
On Fri, 14 Jun 2024 12:04:29 +0200, Thomas Weißschuh wrote:
> Implement review comments from Lee as requested in [0] for
> "leds: Add ChromeOS EC driver".
> 
> Changes:
> * Inline DRV_NAME string constant.
> * Use dev_err() instead of dev_warn() to report errors.
> * Rename cros_ec_led_probe_led() to cros_ec_led_probe_one().
> * Make loop variable "int" where they belong.
> * Move "Unknown LED" comment to where it belongs.
> * Register trigger during _probe().
> * Use module_platform_driver() and drop all the custom boilerplate.
> 
> [...]

Applied, thanks!

[1/1] leds: cros_ec: Implement review comments from Lee
      commit: 1b95b0039874092a24f9ee58c8bedf68485221a7

--
Lee Jones [李琼斯]
Lee Jones June 20, 2024, 5:15 p.m. UTC | #6
On Thu, 20 Jun 2024, Thomas Weißschuh wrote:

> On 2024-06-20 13:27:41+0000, Lee Jones wrote:
> > On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> > 
> > > Hi Lee,
> > > 
> > > On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> > > > Definitely not seen a commit message like that before
> > > 
> > > I assumed that this patch would be squashed into the original commit.
> > > 
> > > My question in which form you wanted the changes should have included
> > > "incremental series".
> > 
> > Incremental means on top.
> > 
> > A lot of maintainers don't support history re-writes, but I've reserved
> > that right since forever, so I can squash it if you like.
> 
> If it is already visible somewhere and a squash would inconvenience
> anybody I'll resend it.
> But if not I'd be happy about a squash.
> 
> (I couldn't and still can't find the public tree where driver is in)

Odd, neither can I!  Okay applied the whole set again, squashed the
patch and submitted for testing.
Thomas Weißschuh June 20, 2024, 7:02 p.m. UTC | #7
On 2024-06-20 18:15:11+0000, Lee Jones wrote:
> On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> 
> > On 2024-06-20 13:27:41+0000, Lee Jones wrote:
> > > On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> > > 
> > > > Hi Lee,
> > > > 
> > > > On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> > > > > Definitely not seen a commit message like that before
> > > > 
> > > > I assumed that this patch would be squashed into the original commit.
> > > > 
> > > > My question in which form you wanted the changes should have included
> > > > "incremental series".
> > > 
> > > Incremental means on top.
> > > 
> > > A lot of maintainers don't support history re-writes, but I've reserved
> > > that right since forever, so I can squash it if you like.
> > 
> > If it is already visible somewhere and a squash would inconvenience
> > anybody I'll resend it.
> > But if not I'd be happy about a squash.
> > 
> > (I couldn't and still can't find the public tree where driver is in)
> 
> Odd, neither can I!  Okay applied the whole set again, squashed the
> patch and submitted for testing.

Thanks!

FYI:

The Ack you asked for in the cros_kbd_led_backlight series [0],
which should go through the LED tree (and has a MFD component),
was given by Tzung-Bi in [1].

(In case it fell through the cracks. If not, please disregard)


Thomas

[0] https://lore.kernel.org/lkml/20240526-cros_ec-kbd-led-framework-v3-0-ee577415a521@weissschuh.net/
[1] https://lore.kernel.org/lkml/ZmutW6vh7pD1HLf5@google.com/
Lee Jones June 21, 2024, 10:40 a.m. UTC | #8
On Thu, 20 Jun 2024, Thomas Weißschuh wrote:

> On 2024-06-20 18:15:11+0000, Lee Jones wrote:
> > On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> > 
> > > On 2024-06-20 13:27:41+0000, Lee Jones wrote:
> > > > On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> > > > 
> > > > > Hi Lee,
> > > > > 
> > > > > On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> > > > > > Definitely not seen a commit message like that before
> > > > > 
> > > > > I assumed that this patch would be squashed into the original commit.
> > > > > 
> > > > > My question in which form you wanted the changes should have included
> > > > > "incremental series".
> > > > 
> > > > Incremental means on top.
> > > > 
> > > > A lot of maintainers don't support history re-writes, but I've reserved
> > > > that right since forever, so I can squash it if you like.
> > > 
> > > If it is already visible somewhere and a squash would inconvenience
> > > anybody I'll resend it.
> > > But if not I'd be happy about a squash.
> > > 
> > > (I couldn't and still can't find the public tree where driver is in)
> > 
> > Odd, neither can I!  Okay applied the whole set again, squashed the
> > patch and submitted for testing.
> 
> Thanks!
> 
> FYI:
> 
> The Ack you asked for in the cros_kbd_led_backlight series [0],
> which should go through the LED tree (and has a MFD component),
> was given by Tzung-Bi in [1].
> 
> (In case it fell through the cracks. If not, please disregard)

Now I'm really confused.

This patch not for that set though, right?

You're talking about:

 mfd: cros_ec: Register keyboard backlight subdevice
 platform/chrome: cros_kbd_led_backlight: allow binding through MFD     <-- this one
 leds: class: Add flag to avoid automatic renaming of LED devices
 leds: class: Warn about name collisions earlier

But this fix-up patch belongs in:

 mfd: cros_ec: Register LED subdevice
 leds: Add ChromeOS EC driver                                           <-- this one
 leds: core: Unexport led_colors[] array
 leds: multicolor: Use led_get_color_name() function
 leds: core: Introduce led_get_color_name() function

Right?

> [0] https://lore.kernel.org/lkml/20240526-cros_ec-kbd-led-framework-v3-0-ee577415a521@weissschuh.net/
> [1] https://lore.kernel.org/lkml/ZmutW6vh7pD1HLf5@google.com/
Thomas Weißschuh June 21, 2024, 10:44 a.m. UTC | #9
On 2024-06-21 11:40:38+0000, Lee Jones wrote:
> On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> 
> > On 2024-06-20 18:15:11+0000, Lee Jones wrote:
> > > On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> > > 
> > > > On 2024-06-20 13:27:41+0000, Lee Jones wrote:
> > > > > On Thu, 20 Jun 2024, Thomas Weißschuh wrote:
> > > > > 
> > > > > > Hi Lee,
> > > > > > 
> > > > > > On 2024-06-20 10:31:14+0000, Lee Jones wrote:
> > > > > > > Definitely not seen a commit message like that before
> > > > > > 
> > > > > > I assumed that this patch would be squashed into the original commit.
> > > > > > 
> > > > > > My question in which form you wanted the changes should have included
> > > > > > "incremental series".
> > > > > 
> > > > > Incremental means on top.
> > > > > 
> > > > > A lot of maintainers don't support history re-writes, but I've reserved
> > > > > that right since forever, so I can squash it if you like.
> > > > 
> > > > If it is already visible somewhere and a squash would inconvenience
> > > > anybody I'll resend it.
> > > > But if not I'd be happy about a squash.
> > > > 
> > > > (I couldn't and still can't find the public tree where driver is in)
> > > 
> > > Odd, neither can I!  Okay applied the whole set again, squashed the
> > > patch and submitted for testing.
> > 
> > Thanks!
> > 
> > FYI:
> > 
> > The Ack you asked for in the cros_kbd_led_backlight series [0],
> > which should go through the LED tree (and has a MFD component),
> > was given by Tzung-Bi in [1].
> > 
> > (In case it fell through the cracks. If not, please disregard)
> 
> Now I'm really confused.
> 
> This patch not for that set though, right?
> 
> You're talking about:
> 
>  mfd: cros_ec: Register keyboard backlight subdevice
>  platform/chrome: cros_kbd_led_backlight: allow binding through MFD     <-- this one
>  leds: class: Add flag to avoid automatic renaming of LED devices
>  leds: class: Warn about name collisions earlier
> 
> But this fix-up patch belongs in:
> 
>  mfd: cros_ec: Register LED subdevice
>  leds: Add ChromeOS EC driver                                           <-- this one
>  leds: core: Unexport led_colors[] array
>  leds: multicolor: Use led_get_color_name() function
>  leds: core: Introduce led_get_color_name() function
> 
> Right?

Yes, all correct.
Which is why I referred to it explicitly as the "cros_kbd_led_backlight series".

It was meant as a heads-up. Mentioned here as I was writing with you anyways.

> > [0] https://lore.kernel.org/lkml/20240526-cros_ec-kbd-led-framework-v3-0-ee577415a521@weissschuh.net/
> > [1] https://lore.kernel.org/lkml/ZmutW6vh7pD1HLf5@google.com/
diff mbox series

Patch

diff --git a/drivers/leds/leds-cros_ec.c b/drivers/leds/leds-cros_ec.c
index 7bb21a587713..275522b81ea5 100644
--- a/drivers/leds/leds-cros_ec.c
+++ b/drivers/leds/leds-cros_ec.c
@@ -14,8 +14,6 @@ 
 #include <linux/platform_data/cros_ec_commands.h>
 #include <linux/platform_data/cros_ec_proto.h>
 
-#define DRV_NAME	"cros-ec-led"
-
 static const char * const cros_ec_led_functions[] = {
 	[EC_LED_ID_BATTERY_LED]            = LED_FUNCTION_CHARGING,
 	[EC_LED_ID_POWER_LED]              = LED_FUNCTION_POWER,
@@ -152,7 +150,7 @@  static int cros_ec_led_count_subleds(struct device *dev,
 
 		if (common_range != range) {
 			/* The multicolor LED API expects a uniform max_brightness */
-			dev_warn(dev, "Inconsistent LED brightness values\n");
+			dev_err(dev, "Inconsistent LED brightness values\n");
 			return -EINVAL;
 		}
 	}
@@ -176,22 +174,21 @@  static const char *cros_ec_led_get_color_name(struct led_classdev_mc *led_mc_cde
 	return led_get_color_name(color);
 }
 
-static int cros_ec_led_probe_led(struct device *dev, struct cros_ec_device *cros_ec,
+static int cros_ec_led_probe_one(struct device *dev, struct cros_ec_device *cros_ec,
 				 enum ec_led_id id)
 {
 	union cros_ec_led_cmd_data arg = {};
 	struct cros_ec_led_priv *priv;
 	struct led_classdev *led_cdev;
 	struct mc_subled *subleds;
-	int ret, num_subleds;
-	size_t i, subled;
+	int i, ret, num_subleds;
+	size_t subled;
 
 	arg.req.led_id = id;
 	arg.req.flags = EC_LED_FLAGS_QUERY;
 	ret = cros_ec_led_send_cmd(cros_ec, &arg);
-	/* Unknown LED, skip */
 	if (ret == -EINVAL)
-		return 0;
+		return 0; /* Unknown LED, skip */
 	if (ret == -EOPNOTSUPP)
 		return -ENODEV;
 	if (ret < 0)
@@ -247,11 +244,14 @@  static int cros_ec_led_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent);
 	struct cros_ec_device *cros_ec = ec_dev->ec_dev;
-	int ret = 0;
-	size_t i;
+	int i, ret = 0;
+
+	ret = devm_led_trigger_register(dev, &cros_ec_led_trigger);
+	if (ret)
+		return ret;
 
 	for (i = 0; i < EC_LED_ID_COUNT; i++) {
-		ret = cros_ec_led_probe_led(dev, cros_ec, i);
+		ret = cros_ec_led_probe_one(dev, cros_ec, i);
 		if (ret)
 			break;
 	}
@@ -260,38 +260,16 @@  static int cros_ec_led_probe(struct platform_device *pdev)
 }
 
 static const struct platform_device_id cros_ec_led_id[] = {
-	{ DRV_NAME, 0 },
+	{ "cros-ec-led", 0 },
 	{}
 };
 
 static struct platform_driver cros_ec_led_driver = {
-	.driver.name	= DRV_NAME,
+	.driver.name	= "cros-ec-led",
 	.probe		= cros_ec_led_probe,
 	.id_table	= cros_ec_led_id,
 };
-
-static int __init cros_ec_led_init(void)
-{
-	int ret;
-
-	ret = led_trigger_register(&cros_ec_led_trigger);
-	if (ret)
-		return ret;
-
-	ret = platform_driver_register(&cros_ec_led_driver);
-	if (ret)
-		led_trigger_unregister(&cros_ec_led_trigger);
-
-	return ret;
-};
-module_init(cros_ec_led_init);
-
-static void __exit cros_ec_led_exit(void)
-{
-	platform_driver_unregister(&cros_ec_led_driver);
-	led_trigger_unregister(&cros_ec_led_trigger);
-};
-module_exit(cros_ec_led_exit);
+module_platform_driver(cros_ec_led_driver);
 
 MODULE_DEVICE_TABLE(platform, cros_ec_led_id);
 MODULE_DESCRIPTION("ChromeOS EC LED Driver");