linux.git/drivers/pinctrl/samsung, branch for-next

pinctrl: samsung: Add Exynos9810 SoC specific data

2024-10-27T20:02:08+00:00

Add Samsung Exynos9810 SoC specific data to enable pinctrl
support for platforms based on Exynos9810.

Co-developed-by: Maksym Holovach 
Signed-off-by: Maksym Holovach 
Signed-off-by: Markuss Broks 
Link: https://lore.kernel.org/r/20241026-exynos9810-v3-8-b89de9441ea8@gmail.com
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: Add Exynos 990 SoC pinctrl configuration

2024-10-17T07:55:24+00:00

Add SoC pinctrl configuration for the Exynos 990. The bank types
used are the same as Exynos 850, so we can reuse its macros.

Signed-off-by: Igor Belwon 
Link: https://lore.kernel.org/r/20241016154838.64515-4-igor.belwon@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: Add exynos8895 SoC pinctrl configuration

2024-10-02T07:47:45+00:00

Add support for the pin-controller found on the Exynos8895 SoC
used in Samsung Galaxy S8 and S8 Plus phones.

It has a newly applied pinctrl register layer for FSYS0 with a
different bank type offset that consists of the following bit
fields:

CON: 4, DAT: 1, PUD: 2, DRV: 3, CONPDN: 2, PUDPDN: 2

Signed-off-by: Ivaylo Ivanov 
Reviewed-by: Sam Protsenko 
Acked-by: Linus Walleij 
Link: https://lore.kernel.org/r/20240920154508.1618410-6-ivo.ivanov.ivanov1@gmail.com
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: Use kmemdup_array instead of kmemdup for multiple allocation

2024-08-23T13:40:55+00:00

Let the kmemdup_array() take care about multiplication
and possible overflows.

Using kmemdup_array() is more appropriate and makes the code
easier to audit.

Signed-off-by: Shen Lichuan 
Link: https://lore.kernel.org/r/20240823114441.50648-1-shenlichuan@vivo.com
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: Add support for pull-up and pull-down

2024-08-08T15:22:04+00:00

Gpiolib framework has the implementation of setting up the
PUD configuration for GPIO pins but there is no driver support.

Add support to handle the PUD configuration request from the
userspace in samsung pinctrl driver.

Signed-off-by: Vishnu Reddy 
Link: https://lore.kernel.org/r/20240729153631.24536-1-vishnu.reddy@samsung.com
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: Use scope based of_node_put() cleanups

2024-08-05T07:30:15+00:00

Use scope based of_node_put() cleanup to simplify code.

Signed-off-by: Peng Fan 
Link: https://lore.kernel.org/r/20240504-pinctrl-cleanup-v2-20-26c5f2dc1181@nxp.com
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: Use of_property_present()

2024-08-04T09:09:06+00:00

Use of_property_present() to test for property presence rather than
of_find_property(). This is part of a larger effort to remove callers
of of_find_property() and similar functions. of_find_property() leaks
the DT struct property and data pointers which is a problem for
dynamically allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) 
Link: https://lore.kernel.org/r/20240731191312.1710417-16-robh@kernel.org
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: drop redundant drvdata assignment

2024-04-30T07:41:58+00:00

Fix W=1 warning:

  drivers/pinctrl/samsung/pinctrl-samsung.c: In function ‘samsung_gpio_set_direction’:
  drivers/pinctrl/samsung/pinctrl-samsung.c:633:42: warning: variable ‘drvdata’ set but not used [-Wunused-but-set-variable]

Fixes: f9c744747973 ("pinctrl: samsung: support a bus clock")
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202404300825.6lxLwvUY-lkp@intel.com/
Reviewed-by: André Draszik 
Link: https://lore.kernel.org/r/20240430060304.12332-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: support a bus clock

2024-04-29T17:19:30+00:00

On some Samsung-based SoCs there are separate bus clocks / gates each
for each pinctrl instance. To be able to access each pinctrl instance's
registers, this bus clock needs to be running, otherwise register
access will hang. Google Tensor gs101 is one example for such an
implementation.

Update the driver to handle this optional bus clock:
* handle an optional bus clock from DT
* prepare it during driver probe
* enclose all relevant register accesses with a clock enable & disable

Signed-off-by: André Draszik 
Link: https://lore.kernel.org/r/20240426-samsung-pinctrl-busclock-v3-2-adb8664b8a7e@linaro.org
Signed-off-by: Krzysztof Kozlowski

pinctrl: samsung: constify iomem pointers

2023-12-28T21:13:17+00:00

Constify few pointers to iomem, where the destination memory is not
modified, for code safety and readability.

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Linus Walleij 
Reviewed-by: Sam Protsenko 
Link: https://lore.kernel.org/r/20231223191902.22857-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij