mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH] PWM: i.MX: register successfully without alias
Date: Thu,  5 Mar 2015 15:18:01 +0100	[thread overview]
Message-ID: <1425565081-9515-1-git-send-email-s.hauer@pengutronix.de> (raw)

When a PWM does not have an of alias generate a name from the
base address so that we can register it successfully.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/pwm/pwm-imx.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index fbfc3af..b00bf7e 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -226,21 +226,19 @@ static int imx_pwm_probe(struct device_d *dev)
 	if (IS_ERR(imx->clk_per))
 		return PTR_ERR(imx->clk_per);
 
+	imx->mmio_base = dev_request_mem_region(dev, 0);
+	if (IS_ERR(imx->mmio_base))
+		return PTR_ERR(imx->mmio_base);
+
 	imx->chip.ops = &imx_pwm_ops;
 	if (dev->device_node) {
 		imx->chip.devname = of_alias_get(dev->device_node);
-		if (!imx->chip.devname) {
-			dev_err(dev, "no alias for pwm\n");
-			return -EINVAL;
-		}
+		if (!imx->chip.devname)
+			imx->chip.devname = asprintf("pwm_%p", imx->mmio_base);
 	} else {
 		imx->chip.devname = asprintf("pwm%d", dev->id);
 	}
 
-	imx->mmio_base = dev_request_mem_region(dev, 0);
-	if (IS_ERR(imx->mmio_base))
-		return PTR_ERR(imx->mmio_base);
-
 	imx->config = data->config;
 	imx->set_enable = data->set_enable;
 
-- 
2.1.4


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

                 reply	other threads:[~2015-03-05 14:18 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=1425565081-9515-1-git-send-email-s.hauer@pengutronix.de \
    --to=s.hauer@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    /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