[PATCH 0/2] soc: use new GPIO line value setter callbacks

[PATCH 0/2] soc: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
values") added new line setter callbacks to struct gpio_chip. They allow
to indicate failures to callers. We're in the process of converting all
GPIO controllers to using them before removing the old ones. This series
converts all GPIO chips implemented under drivers/soc/.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
Bartosz Golaszewski (2):
      soc: fsl: qe: use new GPIO line value setter callbacks
      soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks

 drivers/soc/fsl/qe/gpio.c       | 6 ++++--
 drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
 2 files changed, 9 insertions(+), 5 deletions(-)
---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250523-gpiochip-set-rv-soc-14e1d9414f70

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

[PATCH 1/2] soc: fsl: qe: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/soc/fsl/qe/gpio.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c
index 3ef24ba0245b75471ffa10f579bb744c0c3b7e43..5391cce4e6efe6d120db7fdf7509dc5eb840f344 100644
--- a/drivers/soc/fsl/qe/gpio.c
+++ b/drivers/soc/fsl/qe/gpio.c
@@ -57,7 +57,7 @@ static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio)
 	return !!(ioread32be(&regs->cpdata) & pin_mask);
 }
 
-static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
+static int qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 {
 	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
 	struct qe_gpio_chip *qe_gc = gpiochip_get_data(gc);
@@ -75,6 +75,8 @@ static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
 	iowrite32be(qe_gc->cpdata, &regs->cpdata);
 
 	spin_unlock_irqrestore(&qe_gc->lock, flags);
+
+	return 0;
 }
 
 static void qe_gpio_set_multiple(struct gpio_chip *gc,
@@ -317,7 +319,7 @@ static int __init qe_add_gpiochips(void)
 		gc->direction_input = qe_gpio_dir_in;
 		gc->direction_output = qe_gpio_dir_out;
 		gc->get = qe_gpio_get;
-		gc->set = qe_gpio_set;
+		gc->set_rv = qe_gpio_set;
 		gc->set_multiple = qe_gpio_set_multiple;
 
 		ret = of_mm_gpiochip_add_data(np, mm_gc, qe_gc);

-- 
2.48.1

Re: [PATCH 1/2] soc: fsl: qe: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

On Tue, Jun 10, 2025 at 2:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> struct gpio_chip now has callbacks for setting line values that return
> an integer, allowing to indicate failures. Convert the driver to using
> them.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>  drivers/soc/fsl/qe/gpio.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/soc/fsl/qe/gpio.c b/drivers/soc/fsl/qe/gpio.c
> index 3ef24ba0245b75471ffa10f579bb744c0c3b7e43..5391cce4e6efe6d120db7fdf7509dc5eb840f344 100644
> --- a/drivers/soc/fsl/qe/gpio.c
> +++ b/drivers/soc/fsl/qe/gpio.c
> @@ -57,7 +57,7 @@ static int qe_gpio_get(struct gpio_chip *gc, unsigned int gpio)
>         return !!(ioread32be(&regs->cpdata) & pin_mask);
>  }
>
> -static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
> +static int qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
>  {
>         struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
>         struct qe_gpio_chip *qe_gc = gpiochip_get_data(gc);
> @@ -75,6 +75,8 @@ static void qe_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
>         iowrite32be(qe_gc->cpdata, &regs->cpdata);
>
>         spin_unlock_irqrestore(&qe_gc->lock, flags);
> +
> +       return 0;
>  }
>
>  static void qe_gpio_set_multiple(struct gpio_chip *gc,
> @@ -317,7 +319,7 @@ static int __init qe_add_gpiochips(void)
>                 gc->direction_input = qe_gpio_dir_in;
>                 gc->direction_output = qe_gpio_dir_out;
>                 gc->get = qe_gpio_get;
> -               gc->set = qe_gpio_set;
> +               gc->set_rv = qe_gpio_set;
>                 gc->set_multiple = qe_gpio_set_multiple;
>
>                 ret = of_mm_gpiochip_add_data(np, mm_gc, qe_gc);
>
> --
> 2.48.1
>

Christophe: let me reping you here as there's no reason for this
relatively trivial patch to miss the upcoming merge window. Do you
have any objections to me queueing it via the GPIO tree?

Bartosz

Re: [PATCH 1/2] soc: fsl: qe: use new GPIO line value setter callbacks

[Christophe Leroy]

On Tue, 10 Jun 2025 14:38:50 +0200, Bartosz Golaszewski wrote:
> struct gpio_chip now has callbacks for setting line values that return
> an integer, allowing to indicate failures. Convert the driver to using
> them.
> 
> 

Applied, thanks!

[1/2] soc: fsl: qe: use new GPIO line value setter callbacks
      (no commit info)

Best regards,
-- 
Christophe Leroy <christophe.leroy@csgroup.eu>

[PATCH 2/2] soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/renesas/pwc-rzv2m.c b/drivers/soc/renesas/pwc-rzv2m.c
index 452cee8d68bee7d04e7acbee6bd90dab457c77c3..4dbcb3d4a90ccd2796e26d6250aa246b32b09285 100644
--- a/drivers/soc/renesas/pwc-rzv2m.c
+++ b/drivers/soc/renesas/pwc-rzv2m.c
@@ -24,8 +24,8 @@ struct rzv2m_pwc_priv {
 	DECLARE_BITMAP(ch_en_bits, 2);
 };
 
-static void rzv2m_pwc_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			       int value)
+static int rzv2m_pwc_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			      int value)
 {
 	struct rzv2m_pwc_priv *priv = gpiochip_get_data(chip);
 	u32 reg;
@@ -38,6 +38,8 @@ static void rzv2m_pwc_gpio_set(struct gpio_chip *chip, unsigned int offset,
 	writel(reg, priv->base + PWC_GPIO);
 
 	assign_bit(offset, priv->ch_en_bits, value);
+
+	return 0;
 }
 
 static int rzv2m_pwc_gpio_get(struct gpio_chip *chip, unsigned int offset)
@@ -62,7 +64,7 @@ static const struct gpio_chip rzv2m_pwc_gc = {
 	.label = "gpio_rzv2m_pwc",
 	.owner = THIS_MODULE,
 	.get = rzv2m_pwc_gpio_get,
-	.set = rzv2m_pwc_gpio_set,
+	.set_rv = rzv2m_pwc_gpio_set,
 	.direction_output = rzv2m_pwc_gpio_direction_output,
 	.can_sleep = false,
 	.ngpio = 2,

-- 
2.48.1

Re: [PATCH 2/2] soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks

[Geert Uytterhoeven]

On Tue, 10 Jun 2025 at 14:38, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> struct gpio_chip now has callbacks for setting line values that return
> an integer, allowing to indicate failures. Convert the driver to using
> them.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v6.17.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 0/2] soc: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

On Tue, Jun 10, 2025 at 2:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
> values") added new line setter callbacks to struct gpio_chip. They allow
> to indicate failures to callers. We're in the process of converting all
> GPIO controllers to using them before removing the old ones. This series
> converts all GPIO chips implemented under drivers/soc/.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
> Bartosz Golaszewski (2):
>       soc: fsl: qe: use new GPIO line value setter callbacks
>       soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks
>
>  drivers/soc/fsl/qe/gpio.c       | 6 ++++--
>  drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
>  2 files changed, 9 insertions(+), 5 deletions(-)
> ---
> base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
> change-id: 20250523-gpiochip-set-rv-soc-14e1d9414f70
>
> Best regards,
> --
> Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>

I see Geert queued patch 2/2, who would take patch 1/2?

Bart

Re: [PATCH 0/2] soc: use new GPIO line value setter callbacks

[Christophe Leroy]

Hi,


Le 23/06/2025 à 09:33, Bartosz Golaszewski a écrit :
> On Tue, Jun 10, 2025 at 2:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>>
>> Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
>> values") added new line setter callbacks to struct gpio_chip. They allow
>> to indicate failures to callers. We're in the process of converting all
>> GPIO controllers to using them before removing the old ones. This series
>> converts all GPIO chips implemented under drivers/soc/.
>>
>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>> ---
>> Bartosz Golaszewski (2):
>>        soc: fsl: qe: use new GPIO line value setter callbacks
>>        soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks
>>
>>   drivers/soc/fsl/qe/gpio.c       | 6 ++++--
>>   drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
>>   2 files changed, 9 insertions(+), 5 deletions(-)
>> ---
>> base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
>> change-id: 20250523-gpiochip-set-rv-soc-14e1d9414f70
>>
>> Best regards,
>> --
>> Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>>
> 
> I see Geert queued patch 2/2, who would take patch 1/2?


It is in my pipe for v6.17 but if someone else wants to take it I can 
Ack it instead.

Christophe

Re: [PATCH 0/2] soc: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

On Mon, Jun 23, 2025 at 11:54 AM Christophe Leroy
<christophe.leroy@csgroup.eu> wrote:
>
> Hi,
>
>
> Le 23/06/2025 à 09:33, Bartosz Golaszewski a écrit :
> > On Tue, Jun 10, 2025 at 2:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> >>
> >> Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
> >> values") added new line setter callbacks to struct gpio_chip. They allow
> >> to indicate failures to callers. We're in the process of converting all
> >> GPIO controllers to using them before removing the old ones. This series
> >> converts all GPIO chips implemented under drivers/soc/.
> >>
> >> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> >> ---
> >> Bartosz Golaszewski (2):
> >>        soc: fsl: qe: use new GPIO line value setter callbacks
> >>        soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks
> >>
> >>   drivers/soc/fsl/qe/gpio.c       | 6 ++++--
> >>   drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
> >>   2 files changed, 9 insertions(+), 5 deletions(-)
> >> ---
> >> base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
> >> change-id: 20250523-gpiochip-set-rv-soc-14e1d9414f70
> >>
> >> Best regards,
> >> --
> >> Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> >>
> >
> > I see Geert queued patch 2/2, who would take patch 1/2?
>
>
> It is in my pipe for v6.17 but if someone else wants to take it I can
> Ack it instead.
>
> Christophe

No, that's alright, I just didn't get any notification nor is it in
linux-next yet.

Bart

Re: [PATCH 0/2] soc: use new GPIO line value setter callbacks

[Christophe Leroy]

Le 23/06/2025 à 11:55, Bartosz Golaszewski a écrit :
> On Mon, Jun 23, 2025 at 11:54 AM Christophe Leroy
> <christophe.leroy@csgroup.eu> wrote:
>>
>> Hi,
>>
>>
>> Le 23/06/2025 à 09:33, Bartosz Golaszewski a écrit :
>>> On Tue, Jun 10, 2025 at 2:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>>>>
>>>> Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
>>>> values") added new line setter callbacks to struct gpio_chip. They allow
>>>> to indicate failures to callers. We're in the process of converting all
>>>> GPIO controllers to using them before removing the old ones. This series
>>>> converts all GPIO chips implemented under drivers/soc/.
>>>>
>>>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>>>> ---
>>>> Bartosz Golaszewski (2):
>>>>         soc: fsl: qe: use new GPIO line value setter callbacks
>>>>         soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks
>>>>
>>>>    drivers/soc/fsl/qe/gpio.c       | 6 ++++--
>>>>    drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
>>>>    2 files changed, 9 insertions(+), 5 deletions(-)
>>>> ---
>>>> base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
>>>> change-id: 20250523-gpiochip-set-rv-soc-14e1d9414f70
>>>>
>>>> Best regards,
>>>> --
>>>> Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>>>>
>>>
>>> I see Geert queued patch 2/2, who would take patch 1/2?
>>
>>
>> It is in my pipe for v6.17 but if someone else wants to take it I can
>> Ack it instead.
>>
>> Christophe
> 
> No, that's alright, I just didn't get any notification nor is it in
> linux-next yet.

Don't worry, it is not lost, see 
https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=&submitter=&state=&q=&archive=&delegate=61610

Re: [PATCH 0/2] soc: use new GPIO line value setter callbacks

[Bartosz Golaszewski]

On Mon, Jun 23, 2025 at 12:05 PM Christophe Leroy
<christophe.leroy@csgroup.eu> wrote:
>
>
>
> Le 23/06/2025 à 11:55, Bartosz Golaszewski a écrit :
> > On Mon, Jun 23, 2025 at 11:54 AM Christophe Leroy
> > <christophe.leroy@csgroup.eu> wrote:
> >>
> >> Hi,
> >>
> >>
> >> Le 23/06/2025 à 09:33, Bartosz Golaszewski a écrit :
> >>> On Tue, Jun 10, 2025 at 2:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> >>>>
> >>>> Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
> >>>> values") added new line setter callbacks to struct gpio_chip. They allow
> >>>> to indicate failures to callers. We're in the process of converting all
> >>>> GPIO controllers to using them before removing the old ones. This series
> >>>> converts all GPIO chips implemented under drivers/soc/.
> >>>>
> >>>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> >>>> ---
> >>>> Bartosz Golaszewski (2):
> >>>>         soc: fsl: qe: use new GPIO line value setter callbacks
> >>>>         soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks
> >>>>
> >>>>    drivers/soc/fsl/qe/gpio.c       | 6 ++++--
> >>>>    drivers/soc/renesas/pwc-rzv2m.c | 8 +++++---
> >>>>    2 files changed, 9 insertions(+), 5 deletions(-)
> >>>> ---
> >>>> base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
> >>>> change-id: 20250523-gpiochip-set-rv-soc-14e1d9414f70
> >>>>
> >>>> Best regards,
> >>>> --
> >>>> Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> >>>>
> >>>
> >>> I see Geert queued patch 2/2, who would take patch 1/2?
> >>
> >>
> >> It is in my pipe for v6.17 but if someone else wants to take it I can
> >> Ack it instead.
> >>
> >> Christophe
> >
> > No, that's alright, I just didn't get any notification nor is it in
> > linux-next yet.
>
> Don't worry, it is not lost, see
> https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=&submitter=&state=&q=&archive=&delegate=61610

Hi,

This is still not in linux-next and the status on patchwork didn't
change. This will be the last remaining patch not under drivers/gpio/
that's needed to complete this rework by the next cycle. Would you
mind just Acking it and I can take it through the GPIO tree?

Bart