| Message ID | 1432800315-25972-1-git-send-email-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 28/05/15 11:05, 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. > > Also make use of gpiod_get*_optional where applicable. > > Apart from simplification of the affected drivers this is another step > towards making the flags argument to gpiod_get*() mandatory. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > --- > drivers/video/fbdev/omap2/displays-new/encoder-opa362.c | 12 +++--------- > drivers/video/fbdev/omap2/displays-new/panel-dpi.c | 13 +++---------- > .../fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c | 7 +++---- > .../fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c | 9 ++------- > 4 files changed, 11 insertions(+), 30 deletions(-) Thanks, this cleans up nicely those optional cases. Queued for 4.2. Tomi
diff --git a/drivers/video/fbdev/omap2/displays-new/encoder-opa362.c b/drivers/video/fbdev/omap2/displays-new/encoder-opa362.c index 84a6b3367124..a14d993f719d 100644 --- a/drivers/video/fbdev/omap2/displays-new/encoder-opa362.c +++ b/drivers/video/fbdev/omap2/displays-new/encoder-opa362.c @@ -201,15 +201,9 @@ static int opa362_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ddata); - gpio = devm_gpiod_get(&pdev->dev, "enable"); - if (IS_ERR(gpio)) { - if (PTR_ERR(gpio) != -ENOENT) - return PTR_ERR(gpio); - - gpio = NULL; - } else { - gpiod_direction_output(gpio, 0); - } + gpio = devm_gpiod_get_optional(&pdev->dev, "enable", GPIOD_OUT_LOW); + if (IS_ERR(gpio)) + return PTR_ERR(gpio); ddata->enable_gpio = gpio; diff --git a/drivers/video/fbdev/omap2/displays-new/panel-dpi.c b/drivers/video/fbdev/omap2/displays-new/panel-dpi.c index eb8fd8140ad0..f7be3489f744 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-dpi.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-dpi.c @@ -209,16 +209,9 @@ static int panel_dpi_probe_of(struct platform_device *pdev) struct videomode vm; struct gpio_desc *gpio; - gpio = devm_gpiod_get(&pdev->dev, "enable"); - - if (IS_ERR(gpio)) { - if (PTR_ERR(gpio) != -ENOENT) - return PTR_ERR(gpio); - else - gpio = NULL; - } else { - gpiod_direction_output(gpio, 0); - } + gpio = devm_gpiod_get_optional(&pdev->dev, "enable", GPIOD_OUT_LOW); + if (IS_ERR(gpio)) + return PTR_ERR(gpio); ddata->enable_gpio = gpio; diff --git a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c index 9974a37a11af..6a1b6a89a928 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c @@ -285,15 +285,14 @@ static int lb035q02_probe_of(struct spi_device *spi) struct omap_dss_device *in; struct gpio_desc *gpio; - gpio = devm_gpiod_get(&spi->dev, "enable"); + gpio = devm_gpiod_get(&spi->dev, "enable", GPIOD_OUT_LOW); if (IS_ERR(gpio)) { dev_err(&spi->dev, "failed to parse enable gpio\n"); return PTR_ERR(gpio); - } else { - gpiod_direction_output(gpio, 0); - ddata->enable_gpio = gpio; } + ddata->enable_gpio = gpio; + ddata->backlight_gpio = -ENOENT; in = omapdss_of_find_source_for_first_ep(node); diff --git a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c index eae263702964..abfd1f6e3327 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c @@ -268,17 +268,12 @@ static int sharp_ls_get_gpio_of(struct device *dev, int index, int val, const char *desc, struct gpio_desc **gpiod) { struct gpio_desc *gd; - int r; *gpiod = NULL; - gd = devm_gpiod_get_index(dev, desc, index); + gd = devm_gpiod_get_index(dev, desc, index, GPIOD_OUT_LOW); if (IS_ERR(gd)) - return PTR_ERR(gd) == -ENOENT ? 0 : PTR_ERR(gd); - - r = gpiod_direction_output(gd, val); - if (r) - return r; + return PTR_ERR(gd); *gpiod = gd; return 0;
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. Also make use of gpiod_get*_optional where applicable. Apart from simplification of the affected drivers this is another step towards making the flags argument to gpiod_get*() mandatory. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/video/fbdev/omap2/displays-new/encoder-opa362.c | 12 +++--------- drivers/video/fbdev/omap2/displays-new/panel-dpi.c | 13 +++---------- .../fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c | 7 +++---- .../fbdev/omap2/displays-new/panel-sharp-ls037v7dw01.c | 9 ++------- 4 files changed, 11 insertions(+), 30 deletions(-)