linux-kernel - [PATCHv3 2/7] backlight:pwm: add an element 'name' to platform data

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Date:	Wed, 6 Oct 2010 21:29:13 +0530
From:	Arun Murthy <arun.murthy@...ricsson.com>
To:	<lars@...afoo.de>, <akpm@...ux-foundation.org>,
	<kernel@...gutronix.de>, <philipp.zabel@...il.com>,
	<robert.jarzmik@...e.fr>, <marek.vasut@...il.com>,
	<eric.y.miao@...il.com>, <rpurdie@...ys.net>,
	<sameo@...ux.intel.com>, <kgene.kim@...sung.com>,
	<linux-omap@...r.kernel.org>
Cc:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-mips@...ux-mips.org>,
	<STEricsson_nomadik_linux@...t.st.com>,
	<arun.murthy@...ricsson.com>, <bgat@...lgatliff.com>,
	<khilman@...prootsystems.com>
Subject: [PATCHv3 2/7] backlight:pwm: add an element 'name' to platform data

A new element 'name' is added to pwm backlight platform data structure.
This is required to identify the pwm device.

Signed-off-by: Arun Murthy <arun.murthy@...ricsson.com>
Acked-by: Linus Walleij <linus.walleij@...ricsson.com>
---
 drivers/video/backlight/pwm_bl.c |    4 +++-
 include/linux/pwm_backlight.h    |    1 +
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index fa512a6..332cc50 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -94,7 +94,9 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	pb->notify = data->notify;
 	pb->dev = &pdev->dev;
 
-	pb->pwm = pwm_request(data->pwm_id, "backlight");
+	if (!data->name)
+		data->name = "backlight";
+	pb->pwm = pwm_request(data->pwm_id, data->name);
 	if (IS_ERR(pb->pwm)) {
 		dev_err(&pdev->dev, "unable to request PWM for backlight\n");
 		ret = PTR_ERR(pb->pwm);
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index 01b3d75..c2ce8f8 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -6,6 +6,7 @@
 
 struct platform_pwm_backlight_data {
 	int pwm_id;
+	char *name;
 	unsigned int max_brightness;
 	unsigned int dft_brightness;
 	unsigned int pwm_period_ns;
-- 
1.7.2.dirty

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