mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Richard Purdie <rpurdie@rpsys.net>
Cc: Grant Likely <grant.likely@secretlab.ca>,
	Rob Landley <rob@landley.net>,
	Thierry Reding <thierry.reding@avionic-design.de>,
	Florian Tobias Schandinat <FlorianSchandinat@gmx.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	<devicetree-discuss@lists.ozlabs.org>,
	<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-fbdev@vger.kernel.org>
Subject: [PATCH 2/4] pwm_backlight: Validate dft_brightness in main probe function
Date: Tue, 22 Jan 2013 14:39:54 +0100	[thread overview]
Message-ID: <1358861996-27194-3-git-send-email-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <1358861996-27194-1-git-send-email-peter.ujfalusi@ti.com>

Move the dft_brightness validity check from the DT parsing function to the
main probe. In this way we can validate it in case we are booting with or
without DT.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 drivers/video/backlight/pwm_bl.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index f0d6854..2a81c24 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -135,12 +135,6 @@ static int pwm_backlight_parse_dt(struct device *dev,
 		if (ret < 0)
 			return ret;
 
-		if (value >= data->max_brightness) {
-			dev_warn(dev, "invalid default brightness level: %u, using %u\n",
-				 value, data->max_brightness - 1);
-			value = data->max_brightness - 1;
-		}
-
 		data->dft_brightness = value;
 	}
 
@@ -249,6 +243,12 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 		goto err_alloc;
 	}
 
+	if (data->dft_brightness > data->max_brightness) {
+		dev_warn(&pdev->dev,
+			 "invalid default brightness level: %u, using %u\n",
+			 data->dft_brightness, data->max_brightness);
+		data->dft_brightness = data->max_brightness;
+	}
 	bl->props.brightness = data->dft_brightness;
 	backlight_update_status(bl);
 
-- 
1.8.1.1


  parent reply	other threads:[~2013-01-22 13:41 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-22 13:39 [PATCH 0/4] pwm_backlight: Error fixes and update for DT support Peter Ujfalusi
2013-01-22 13:39 ` [PATCH 1/4] pwm_backlight: Fix PWM levels support in non DT case Peter Ujfalusi
2013-01-28 21:01   ` Thierry Reding
2013-01-29  8:17     ` Peter Ujfalusi
2013-01-29 10:17       ` Thierry Reding
2013-01-29 12:10         ` Peter Ujfalusi
2013-01-29 12:30           ` Thierry Reding
2013-01-30  7:34             ` Peter Ujfalusi
2013-01-22 13:39 ` Peter Ujfalusi [this message]
2013-01-31 12:38   ` [PATCH 2/4] pwm_backlight: Validate dft_brightness in main probe function Peter Ujfalusi
2013-01-31 12:58     ` Thierry Reding
2013-01-22 13:39 ` [PATCH 3/4] pwm_backlight: Refactor the DT parsing code Peter Ujfalusi
2013-01-22 13:39 ` [PATCH 4/4] pwm_backlight: Add support for the whole range of the PWM in DT mode Peter Ujfalusi
2013-01-29 10:00   ` Thierry Reding

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1358861996-27194-3-git-send-email-peter.ujfalusi@ti.com \
    --to=peter.ujfalusi@ti.com \
    --cc=FlorianSchandinat@gmx.de \
    --cc=akpm@linux-foundation.org \
    --cc=devicetree-discuss@lists.ozlabs.org \
    --cc=grant.likely@secretlab.ca \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-fbdev@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rob@landley.net \
    --cc=rpurdie@rpsys.net \
    --cc=thierry.reding@avionic-design.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®