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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 07/10] video: backlight-pwm: Add error message
Date: Wed, 23 Sep 2015 13:47:28 +0200	[thread overview]
Message-ID: <1443008851-26596-8-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1443008851-26596-1-git-send-email-s.hauer@pengutronix.de>

Inform the user when we can't find a pwm for the backlight driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/video/backlight-pwm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/video/backlight-pwm.c b/drivers/video/backlight-pwm.c
index 91b1481..8f17f21 100644
--- a/drivers/video/backlight-pwm.c
+++ b/drivers/video/backlight-pwm.c
@@ -160,8 +160,10 @@ static int backlight_pwm_of_probe(struct device_d *dev)
 	struct pwm_device *pwm;
 
 	pwm = of_pwm_request(dev->device_node, NULL);
-	if (IS_ERR(pwm))
+	if (IS_ERR(pwm)) {
+		dev_err(dev, "Cannot find PWM device\n");
 		return PTR_ERR(pwm);
+	}
 
 	pwm_backlight = xzalloc(sizeof(*pwm_backlight));
 	pwm_backlight->pwm = pwm;
-- 
2.5.1


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  parent reply	other threads:[~2015-09-23 11:47 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-23 11:47 [PATCH v2] video: imx-ipu-v3: ldb fixes Sascha Hauer
2015-09-23 11:47 ` [PATCH 01/10] video: ipuv3: Do not crash when no mode is found Sascha Hauer
2015-09-23 11:47 ` [PATCH 02/10] video: ipuv3: imx-ldb: remove unused variable Sascha Hauer
2015-09-23 11:47 ` [PATCH 03/10] video: ipuv3: imx-ldb: Support video modes in ldb node Sascha Hauer
2015-09-23 11:47 ` [PATCH 04/10] video: simple-panel: Add debug/error messages Sascha Hauer
2015-09-23 11:47 ` [PATCH 05/10] video: simple-panel: Add support for device tree provided nodes Sascha Hauer
2015-09-23 11:47 ` [PATCH 06/10] video: ipuv3: print error message when no modes are found Sascha Hauer
2015-09-23 11:47 ` Sascha Hauer [this message]
2015-09-23 11:47 ` [PATCH 08/10] video: backlight-pwm: Add regulator support Sascha Hauer
2015-09-23 11:47 ` [PATCH 09/10] ARM: i.MX: GuF Santaro: enable PWM Sascha Hauer
2015-09-23 11:47 ` [PATCH 10/10] ARM: i.MX: GuF Santaro: Fix panel support Sascha Hauer

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