linux.git/drivers/pinctrl/renesas, branch v6.7

treewide: rename pinctrl_gpio_direction_output_new()

2023-11-04T09:23:22+00:00

Now that pinctrl_gpio_direction_output() is no longer used, let's drop
the '_new' suffix from its improved variant.

Signed-off-by: Bartosz Golaszewski 
Acked-by: Linus Walleij

treewide: rename pinctrl_gpio_direction_input_new()

2023-11-04T09:23:22+00:00

Now that pinctrl_gpio_direction_input() is no longer used, let's drop the
'_new' suffix from its improved variant.

Signed-off-by: Bartosz Golaszewski 
Acked-by: Linus Walleij

treewide: rename pinctrl_gpio_free_new()

2023-11-04T09:23:21+00:00

Now that pinctrl_gpio_free()() is no longer used, let's drop the '_new'
suffix from its improved variant.

Signed-off-by: Bartosz Golaszewski 
Acked-by: Linus Walleij

treewide: rename pinctrl_gpio_request_new()

2023-11-04T09:23:21+00:00

Now that pinctrl_gpio_request() is no longer used, let's drop the '_new'
suffix from its improved variant.

Signed-off-by: Bartosz Golaszewski 
Acked-by: Linus Walleij

pinctrl: renesas: use new pinctrl GPIO helpers

2023-11-04T09:23:19+00:00

Replace the pinctrl helpers taking the global GPIO number as argument
with the improved variants that instead take a pointer to the GPIO chip
and the controller-relative offset.

Signed-off-by: Bartosz Golaszewski 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Geert Uytterhoeven 
Acked-by: Linus Walleij

Merge tag 'pinctrl-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2023-11-04T05:15:19+00:00

Pull pin control updates from Linus Walleij:
 "No pin control core changes this time.

  New drivers:

   - Realtek RTD family pin control driver and RTD1619B, RTD1319D and
     RTD1315E subdrivers

   - Nuvoton NPCM8xx combined pin control and GPIO driver

   - Amlogic T7 pin control driver

   - Renesas RZ/G3S pin control driver

  Improvements:

   - A number of additional UART groups added to the Mediatek MT7981
     driver

   - MPM pin maps added for Qualcomm MSM8996, SM6115, SM6125 and SDM660

   - Extra GPIO banks for the Sunxi H616

   - MLSP I2C6 function support in Qualcomm MSM8226

   - Some __counted_by() annotations for dynamic arrays

   - Ongoing work to make remove() return void

   - LSBC groups and functions in the Renesas R8A7778"

* tag 'pinctrl-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (110 commits)
  pinctrl: Use device_get_match_data()
  dt-bindings: pinctrl: qcom,sa8775p-tlmm: add missing wakeup-parent
  dt-bindings: pinctrl: nuvoton,npcm845: Add missing additionalProperties on gpio child nodes
  dt-bindings: pinctrl: brcm: Ensure all child node properties are documented
  pinctrl: renesas: rzn1: Convert to platform remove callback returning void
  pinctrl: renesas: rzg2l: Add RZ/G3S support
  dt-bindings: pinctrl: renesas: Document RZ/G3S SoC
  pinctrl: renesas: rzg2l: Add support for different DS values on different groups
  pinctrl: renesas: rzg2l: Move DS and OI to SoC-specific configuration
  pinctrl: renesas: rzg2l: Adapt function number for RZ/G3S
  pinctrl: renesas: rzg2l: Adapt for different SD/PWPR register offsets
  pinctrl: renesas: rzg2l: Index all registers based on port offset
  pinctrl: renesas: rzg2l: Add validation of GPIO pin in rzg2l_gpio_request()
  pinctrl: renesas: r8a7778: Add LBSC pins, groups, and functions
  pinctrl: intel: fetch community only when we need it
  pinctrl: cherryview: reduce scope of PIN_CONFIG_BIAS_HIGH_IMPEDANCE case
  pinctrl: cherryview: Convert to platform remove callback returning void
  pinctrl: sprd-sc9860: Convert to platform remove callback returning void
  pinctrl: qcom/msm: Convert to platform remove callback returning void
  pinctrl: qcom/lpi: Convert to platform remove callback returning void
  ...

pinctrl: renesas: rzn1: Convert to platform remove callback returning void

2023-10-13T07:38:05+00:00

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Linus Walleij 
Link: https://lore.kernel.org/r/20231009083856.222030-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzg2l: Add RZ/G3S support

2023-10-13T07:38:05+00:00

Add basic support for RZ/G3S to be able to boot from SD card, have a
running console port, and use GPIOs.  RZ/G3S has 82 general-purpose IO
ports.  Support for the remaining pin functions (e.g. Ethernet, XSPI)
will be added along with controller-specific support.

Signed-off-by: Claudiu Beznea 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20230929053915.1530607-22-claudiu.beznea@bp.renesas.com
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzg2l: Add support for different DS values on different groups

2023-10-13T07:38:05+00:00

RZ/G3S supports different drive strength values for different power
sources and pin groups (A, B, C).  On each group there could be up to 4
drive strength values per power source.  Available power sources are
1v8, 2v5, 3v3.  Drive strength values are more fine tuned than what was
previously available on the driver thus the necessity of having
micro-amp support.  As drive strength and power source values are linked
together the hardware setup for these was moved at the end of
rzg2l_pinctrl_pinconf_set() to ensure proper validation of the new
values.

The drive strength values are expected to be initialized though the
SoC-specific hardware configuration data structure.

Signed-off-by: Claudiu Beznea 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20230929053915.1530607-19-claudiu.beznea@bp.renesas.com
Signed-off-by: Geert Uytterhoeven

pinctrl: renesas: rzg2l: Move DS and OI to SoC-specific configuration

2023-10-13T07:38:05+00:00

Move drive strength and output impedance values to the SoC-specific
configuration data structure (struct rzg2l_hwcfg).  This allows
extending the drive strength support for RZ/G3S.  Along with this the DS
values were converted to uA for simple integration with RZ/G3S support.

Signed-off-by: Claudiu Beznea 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20230929053915.1530607-18-claudiu.beznea@bp.renesas.com
Signed-off-by: Geert Uytterhoeven