Re: [PATCH 4/4] i2c: gpio: add sda/scl-gpios property support

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On Tue, Jun 18, 2019 at 02:39:52PM +0200, Marco Felsch wrote:
> Hi Antony,
> 
> On 19-06-18 13:50, Antony Pavlov wrote:
> > On Mon, 17 Jun 2019 12:00:56 +0200
> > Marco Felsch <m.felsch@xxxxxxxxxxxxxx> wrote:
> > 
> > > The gpios property is marked as deprecated since kernel 4.15 so we
> > > should support the "new" mechanism too. The new mechanism has a higher
> > > priority than the deprecated one.
> > > 
> > > Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> > > ---
> > >  drivers/i2c/busses/i2c-gpio.c | 27 +++++++++++++++++----------
> > >  1 file changed, 17 insertions(+), 10 deletions(-)
> > > 
> > > diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
> > > index 708193344a..9508adab06 100644
> > > --- a/drivers/i2c/busses/i2c-gpio.c
> > > +++ b/drivers/i2c/busses/i2c-gpio.c
> > > @@ -94,18 +94,25 @@ static int of_i2c_gpio_probe(struct device_node *np,
> > >  	if (!IS_ENABLED(CONFIG_OFDEVICE))
> > >  		return -ENODEV;
> > >  
> > > -	if (of_gpio_count(np) < 2)
> > > -		return -ENODEV;
> > > +	pdata->sda_pin = of_get_named_gpio_flags(np, "sda-gpios", 0, NULL);
> > > +	pdata->scl_pin = of_get_named_gpio_flags(np, "scl-gpios", 0, NULL);
> > > +
> > > +	if ((!gpio_is_valid(pdata->sda_pin) || !gpio_is_valid(pdata->sda_pin))
> > 
> > Double check of sda_pin here.
> > 
> > Can we change this line to
> > 
> >  +	if ((!gpio_is_valid(pdata->sda_pin) || !gpio_is_valid(pdata->scl_pin))
> 
> Thanks for covering that damn copy'n'paste failure.
> @Sascha
> Is it okay to prepare a follow up patch which you can squash?

Sure.

Sascha

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