From: simon.guinot@sequanux.org (Simon Guinot)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/4] leds: leds-ns2: fix devm_gpio_request_one() flags parameter
Date: Tue, 19 Mar 2013 19:07:30 +0100 [thread overview]
Message-ID: <1363716452-18870-3-git-send-email-simon.guinot@sequanux.org> (raw)
In-Reply-To: <1363716452-18870-1-git-send-email-simon.guinot@sequanux.org>
This patch fixes a regression introduced by commit 31c3dc7488
("leds: leds-ns2: use gpio_request_one").
gpio_request_one is called with a wrong flag value: The initial GPIO
state is used to configure the direction (bit 0) instead of the value
(bit 1). As a result, if the initial GPIO state is non null then the
GPIO will be configured as input.
This patch fixes the issue by using the dedicated macros
GPIOF_OUT_INIT_{LOW,HIGH} to configure the initial GPIO value.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
---
drivers/leds/leds-ns2.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 81af8e9..70137b1 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -193,7 +193,8 @@ create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
enum ns2_led_modes mode;
ret = devm_gpio_request_one(&pdev->dev, template->cmd,
- GPIOF_DIR_OUT | gpio_get_value(template->cmd),
+ gpio_get_value(template->cmd) ?
+ GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
template->name);
if (ret) {
dev_err(&pdev->dev, "%s: failed to setup command GPIO\n",
@@ -202,7 +203,8 @@ create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
}
ret = devm_gpio_request_one(&pdev->dev, template->slow,
- GPIOF_DIR_OUT | gpio_get_value(template->slow),
+ gpio_get_value(template->slow) ?
+ GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
template->name);
if (ret) {
dev_err(&pdev->dev, "%s: failed to setup slow GPIO\n",
--
1.7.10.4
next prev parent reply other threads:[~2013-03-19 18:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-19 18:07 [PATCH 0/4] led: drivers bug fixes Simon Guinot
2013-03-19 18:07 ` [PATCH 1/4] leds: leds-ns2: fix oops at module removal Simon Guinot
2013-03-19 18:07 ` Simon Guinot [this message]
2013-03-20 0:58 ` [PATCH 2/4] leds: leds-ns2: fix devm_gpio_request_one() flags parameter Jingoo Han
2013-03-19 18:07 ` [PATCH 3/4] leds: leds-lt3593: " Simon Guinot
2013-03-20 0:59 ` Jingoo Han
2013-03-19 18:07 ` [PATCH 4/4] leds: renesas: " Simon Guinot
2013-03-20 1:00 ` Jingoo Han
2013-03-21 0:23 ` [PATCH 0/4] led: drivers bug fixes Bryan Wu
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