Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output.
Use this to simplify the driver. Furthermore this is one caller less that stops us making the flags argument to gpiod_get*() mandatory.
Fixes: b2ea8772799d ("drm/bridge: Add I2C based driver for ps8622/ps8625 bridge") Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de --- drivers/gpu/drm/bridge/ps8622.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/bridge/ps8622.c b/drivers/gpu/drm/bridge/ps8622.c index e895aa7ea353..9534607cbd10 100644 --- a/drivers/gpu/drm/bridge/ps8622.c +++ b/drivers/gpu/drm/bridge/ps8622.c @@ -581,31 +581,21 @@ static int ps8622_probe(struct i2c_client *client, ps8622->v12 = NULL; }
- ps8622->gpio_slp = devm_gpiod_get(dev, "sleep"); + ps8622->gpio_slp = devm_gpiod_get(dev, "sleep", GPIOD_OUT_HIGH); if (IS_ERR(ps8622->gpio_slp)) { ret = PTR_ERR(ps8622->gpio_slp); dev_err(dev, "cannot get gpio_slp %d\n", ret); return ret; } - ret = gpiod_direction_output(ps8622->gpio_slp, 1); - if (ret) { - dev_err(dev, "cannot configure gpio_slp\n"); - return ret; - }
- ps8622->gpio_rst = devm_gpiod_get(dev, "reset"); - if (IS_ERR(ps8622->gpio_rst)) { - ret = PTR_ERR(ps8622->gpio_rst); - dev_err(dev, "cannot get gpio_rst %d\n", ret); - return ret; - } /* * Assert the reset pin high to avoid the bridge being * initialized prematurely */ - ret = gpiod_direction_output(ps8622->gpio_rst, 1); - if (ret) { - dev_err(dev, "cannot configure gpio_rst\n"); + ps8622->gpio_rst = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ps8622->gpio_rst)) { + ret = PTR_ERR(ps8622->gpio_rst); + dev_err(dev, "cannot get gpio_rst %d\n", ret); return ret; }
Hello,
the subject is missing "ps8622" before the :. Should I resend for that?
On Tue, May 19, 2015 at 09:03:49AM +0200, Uwe Kleine-König wrote:
drivers/gpu/drm/bridge/ps8622.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-)
Best regards Uwe
On Tue, May 19, 2015 at 09:03:49AM +0200, Uwe Kleine-König wrote:
Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output.
Use this to simplify the driver. Furthermore this is one caller less that stops us making the flags argument to gpiod_get*() mandatory.
Fixes: b2ea8772799d ("drm/bridge: Add I2C based driver for ps8622/ps8625 bridge")
There's no need for this. The patch refactors code, but it doesn't fix anything. Including a "Fixes:" line will cause people to pick this up for stable releases, which I don't think is warranted in this case.
I've applied the patch with the "Fixes:" line removed.
Thanks, Thierry
Hello,
On Tue, May 19, 2015 at 10:06:54AM +0200, Thierry Reding wrote:
On Tue, May 19, 2015 at 09:03:49AM +0200, Uwe Kleine-König wrote:
Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) which appeared in v3.17-rc1, the gpiod_get* functions take an additional parameter that allows to specify direction and initial value for output.
Use this to simplify the driver. Furthermore this is one caller less that stops us making the flags argument to gpiod_get*() mandatory.
Fixes: b2ea8772799d ("drm/bridge: Add I2C based driver for ps8622/ps8625 bridge")
There's no need for this. The patch refactors code, but it doesn't fix anything. Including a "Fixes:" line will cause people to pick this up for stable releases, which I don't think is warranted in this case.
I've applied the patch with the "Fixes:" line removed.
I added the line because at some near point in time I want to make the flags argument mandatory and then it's a bug to not pass it. Do the stable guys really pick patches that have Fixes: but not Cc: stable?
But I don't feel strong here. If you pick the patch up, everything should be fine.
Best regards Uwe
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