diff options
| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2013-10-16 13:53:41 +0300 |
|---|---|---|
| committer | Chanho Park <cometzero@review.tizen.org> | 2014-08-12 18:06:40 -0700 |
| commit | d49b01798277326f0b2c647415d64390eb8977c0 (patch) | |
| tree | 7bfb5b1a5d3e274aa2cd9b70a92b6093d2848c98 | |
| parent | 543eddbe4462bb0becaa33438f1b8b861df0cd29 (diff) | |
| download | linux-3.10-d49b01798277326f0b2c647415d64390eb8977c0.tar.gz linux-3.10-d49b01798277326f0b2c647415d64390eb8977c0.tar.bz2 linux-3.10-d49b01798277326f0b2c647415d64390eb8977c0.zip | |
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.
Change-Id: I1e9e9035dc9451d7531d230645d5f1572130a77b
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>
| -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 1d104e728ef..aa4ac108c33 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; |