linux-toradex.git/drivers/pinctrl/renesas, branch master

Merge tag 'renesas-pinctrl-for-v7.2-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

2026-06-08T22:59:55+00:00

pinctrl: renesas: Updates for v7.2 (take three)

  - Fix locking on RZ/G3L.

* tag 'renesas-pinctrl-for-v7.2-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  pinctrl: renesas: rzg2l: Use raw_spinlock_irqsave() on power source update

Signed-off-by: Linus Walleij

pinctrl: renesas: rzg2l: Use raw_spinlock_irqsave() on power source update

2026-06-05T09:44:54+00:00

The rest of the driver uses raw_spin_lock_irqsave() and
raw_spin_unlock_irqrestore() for locking.  To avoid concurrency issues
or deadlocks, use raw_spinlock_irqsave() via the scoped_guard() helper
for power source updates as well.

Fixes: bbe2277dedbe ("pinctrl: renesas: rzg2l: Add support for selecting power source for {WDT,AWO,ISO}")
Signed-off-by: Claudiu Beznea 
Reviewed-by: Geert Uytterhoeven 
Link: https://patch.msgid.link/20260603151642.4075678-2-claudiu.beznea@kernel.org
Signed-off-by: Geert Uytterhoeven

Merge tag 'renesas-pinctrl-for-v7.2-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

2026-06-01T13:24:47+00:00

pinctrl: renesas: Updates for v7.2 (take two)

  - Add GPIO config support on RZ/G2L,
  - Miscellaneous fixes and improvements.

Signed-off-by: Linus Walleij

pinctrl: Use named initializers for platform_device_id arrays

2026-05-29T20:47:44+00:00

Named initializers are better readable and more robust to changes of the
struct definition. This robustness is relevant for a planned change to
struct platform_device_id replacing .driver_data by an anonymous unit.

While touching these arrays unify spacing and usage of commas.

Signed-off-by: Uwe Kleine-König (The Capable Hub) 
Acked-by: Mika Westerberg 
Reviewed-by: Geert Uytterhoeven  # renesas
Acked-by: Geert Uytterhoeven  # renesas
Signed-off-by: Linus Walleij

pinctrl: renesas: rzg2l: Use tab instead of spaces

2026-05-28T13:07:29+00:00

Use tab instead of spaces to follow the same coding style.

Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Claudiu Beznea 
Link: https://patch.msgid.link/20260528080439.615958-5-claudiu.beznea@kernel.org
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzg2l: Keep member documentation aligned

2026-05-28T13:07:29+00:00

Keep the documentation for struct rzg2l_pinctrl_reg_cache members aligned
with the struct member order.

Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Claudiu Beznea 
Link: https://patch.msgid.link/20260528080439.615958-4-claudiu.beznea@kernel.org
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzv2m: Use -ENOTSUPP instead of -EOPNOTSUPP

2026-05-28T13:05:18+00:00

The pinctrl and GPIO core code make exceptions for the -ENOTSUPP error
code. One such example is gpio_set_config_with_argument_optional(), which
returns success when gpio_set_config_with_argument() returns -ENOTSUPP, but
reports failure for all other error codes.

Returning -EOPNOTSUPP from the pinctrl driver on the unsupported pinctrl
operation may lead to boot failures when pinctrl drivers implements
struct gpio_chip::set_config, the system uses GPIO hogs, and the
struct gpio_chip::set_config implementation returns -EOPNOTSUPP for the
unsupported operations.

Currently, the driver does not implement struct gpio_chip::set_config().
To avoid future failures, return -ENOTSUPP from
rzv2m_pinctrl_pinconf_set().

rzv2m_pinctrl_pinconf_group_get() is used when dumping pinctrl
configuration. pinconf_generic_dump_one(), which calls it, makes
exceptions for the -EINVAL and -ENOTSUPP error codes. The documentation
for struct pinconf_ops::pin_config_group_get states that it "should
return -ENOTSUPP and -EINVAL using the same rules as pin_config_get()".
The documentation for struct pinconf_ops::pin_config_get states:

"get the config of a certain pin, if the requested config is not available
on this controller this should return -ENOTSUPP and if it is available but
disabled it should return -EINVAL".

Return -ENOTSUPP for the unsupported pinctrl operation.

Suggested-by: Geert Uytterhoeven 
Signed-off-by: Claudiu Beznea 
Reviewed-by: Geert Uytterhoeven 
Link: https://patch.msgid.link/20260522105717.1727837-1-claudiu.beznea@kernel.org
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzg2l: Populate struct gpio_chip::set_config

2026-05-25T10:00:27+00:00

Populate struct gpio_chip::set_config to allow various GPIO settings.

Signed-off-by: Claudiu Beznea 
Reviewed-by: Bartosz Golaszewski 
Reviewed-by: Geert Uytterhoeven 
Tested-by: Geert Uytterhoeven 
Link: https://patch.msgid.link/20260515124008.2947838-3-claudiu.beznea@kernel.org
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzg2l: Use -ENOTSUPP instead of -EOPNOTSUPP

2026-05-25T10:00:27+00:00

The pinctrl and GPIO core code make exceptions for the -ENOTSUPP error
code.  One such example is gpio_set_config_with_argument_optional(),
which returns success when gpio_set_config_with_argument() returns
-ENOTSUPP, but reports failure for all other error codes.

Returning -EOPNOTSUPP from the pinctrl driver on the unsupported pinctrl
operation may lead to boot failures when pinctrl drivers implements
struct gpio_chip::set_config, the system uses GPIO hogs, and the
struct gpio_chip::set_config implementation returns -EOPNOTSUPP for the
unsupported operations.

Return -ENOTSUPP for the unsupported pinctrl operation.

Fixes: 560c633d378a ("pinctrl: renesas: rzg2l: Drop oen_read and oen_write callbacks")
Fixes: c4c4637eb57f ("pinctrl: renesas: Add RZ/G2L pin and gpio controller driver")
Cc: stable@vger.kernel.org
Signed-off-by: Claudiu Beznea 
Reviewed-by: Bartosz Golaszewski 
Reviewed-by: Geert Uytterhoeven 
Tested-by: Geert Uytterhoeven 
Link: https://patch.msgid.link/20260515124008.2947838-2-claudiu.beznea@kernel.org
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzt2h: Skip PFC mode configuration if already set

2026-05-25T10:00:23+00:00

In rzt2h_pinctrl_set_pfc_mode(), read the PMC and PFC registers upfront
and skip the pin function configuration if the pin is already in
peripheral mode with the desired function.

Signed-off-by: Lad Prabhakar 
Reviewed-by: Geert Uytterhoeven 
Link: https://patch.msgid.link/20260513115312.1574367-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven