diff options
| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2013-10-16 13:53:41 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-10-28 15:05:24 +0100 |
| commit | 0be81727a48cc28c1219395f32da8ccc99d6c6d0 (patch) | |
| tree | 47d1fb52b367cb0fdd066c8c74849c2ed8eb4755 /net/rfkill | |
| parent | f02ae59b1230853693d09a1003075d671f1a6f7d (diff) | |
| download | linux-0be81727a48cc28c1219395f32da8ccc99d6c6d0.tar.bz2 | |
net: rfkill: gpio: spinlock-safe GPIO access
This sets the direction of the gpio once when it's requested,
and uses the spinlock-safe gpio_set_state() to change the
state.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/rfkill')
| -rw-r--r-- | net/rfkill/rfkill-gpio.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index 1d104e728ef9..aa4ac108c330 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -42,18 +42,18 @@ static int rfkill_gpio_set_power(void *data, bool blocked) if (blocked) { if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) - gpio_direction_output(rfkill->pdata->shutdown_gpio, 0); + gpio_set_value(rfkill->pdata->shutdown_gpio, 0); if (gpio_is_valid(rfkill->pdata->reset_gpio)) - gpio_direction_output(rfkill->pdata->reset_gpio, 0); + gpio_set_value(rfkill->pdata->reset_gpio, 0); if (!IS_ERR(rfkill->clk) && rfkill->clk_enabled) clk_disable(rfkill->clk); } else { if (!IS_ERR(rfkill->clk) && !rfkill->clk_enabled) clk_enable(rfkill->clk); if (gpio_is_valid(rfkill->pdata->reset_gpio)) - gpio_direction_output(rfkill->pdata->reset_gpio, 1); + gpio_set_value(rfkill->pdata->reset_gpio, 1); if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) - gpio_direction_output(rfkill->pdata->shutdown_gpio, 1); + gpio_set_value(rfkill->pdata->shutdown_gpio, 1); } rfkill->clk_enabled = blocked; @@ -114,8 +114,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev) rfkill->clk = devm_clk_get(&pdev->dev, pdata->power_clk_name); if (gpio_is_valid(pdata->reset_gpio)) { - ret = devm_gpio_request(&pdev->dev, pdata->reset_gpio, - rfkill->reset_name); + ret = devm_gpio_request_one(&pdev->dev, pdata->reset_gpio, + 0, rfkill->reset_name); if (ret) { pr_warn("%s: failed to get reset gpio.\n", __func__); return ret; @@ -123,8 +123,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev) } if (gpio_is_valid(pdata->shutdown_gpio)) { - ret = devm_gpio_request(&pdev->dev, pdata->shutdown_gpio, - rfkill->shutdown_name); + ret = devm_gpio_request_one(&pdev->dev, pdata->shutdown_gpio, + 0, rfkill->shutdown_name); if (ret) { pr_warn("%s: failed to get shutdown gpio.\n", __func__); return ret; |