Re: [PATCH v4 4/4] staging: greybus: arche-platform: Switch to the gpio descriptor interface

Nishad Kamdar
2019-01-10T17:43:53Z

On Wed, Jan 09, 2019 at 12:35:47PM +0100, Johan Hovold wrote:
> On Sat, Dec 22, 2018 at 08:23:02PM +0530, Nishad Kamdar wrote:
> > Use the gpiod interface instead of the deprecated
> > old non-descriptor interface.
> >
> > Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
> > ---
> > Changes in v4:
> > - Move 'gpio_desc *svc_sysboot' below the reset flag
> > as it is more logical to have reset flag below
> > reset gpio.
> > - Remove a few unnecessary line breaks.
> > Changes in v3:
> > - Add this patch to a patchset.
> > Changes in v2:
> > - Move comment to the same line as to what it applies to.
> > ---
>
> > -static inline void svc_reset_onoff(unsigned int gpio, bool onoff)
> > +static inline void svc_reset_onoff(struct gpio_desc *gpio, bool onoff)
> > {
> > - gpio_set_value(gpio, onoff);
> > + gpiod_set_value(gpio, onoff);
> > }
>
> Please use the raw interface here too, until we've done away with the
> polarity properties and can honour the generic device tree flags. Please
> make a comment about this in the commit message too.
>
Ok, I'll do that.
> > @@ -444,61 +438,33 @@ static int arche_platform_probe(struct platform_device *pdev)
> > /* setup svc reset gpio */
> > arche_pdata->is_reset_act_hi = of_property_read_bool(np,
> > "svc,reset-active-high");
> > - arche_pdata->svc_reset_gpio = of_get_named_gpio(np,
> > - "svc,reset-gpio",
> > - 0);
> > - if (!gpio_is_valid(arche_pdata->svc_reset_gpio)) {
> > - dev_err(dev, "failed to get reset-gpio\n");
> > - return arche_pdata->svc_reset_gpio;
> > - }
> > - ret = devm_gpio_request(dev, arche_pdata->svc_reset_gpio, "svc-reset");
> > - if (ret) {
> > - dev_err(dev, "failed to request svc-reset gpio:%d\n", ret);
> > - return ret;
> > - }
> > - ret = gpio_direction_output(arche_pdata->svc_reset_gpio,
> > - arche_pdata->is_reset_act_hi);
> > - if (ret) {
> > - dev_err(dev, "failed to set svc-reset gpio dir:%d\n", ret);
> > + if (arche_pdata->is_reset_act_hi)
> > + flags = GPIOD_OUT_HIGH;
> > + else
> > + flags = GPIOD_OUT_LOW;
> > +
> > + arche_pdata->svc_reset = devm_gpiod_get(dev, "svc,reset-gpio", flags);
>
> Again, you cannot just rename devicetree properties like this. Keep the
> current names for now (and drop the -gpio suffix when requesting).
>
Ok, I'll so that.
> Johan

Regards,
Nishad