The pinctrl-microchip-sgpio driver needs OF support, so add that to
Kconfig.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20201125122014.11237-1-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds a pinctrl driver for the Microsemi/Microchip Serial GPIO
(SGPIO) device used in various SoC's.
The driver is added as a pinctrl driver, albeit only having just GPIO
support currently. The hardware supports other functions that will be
added following.
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20201113145151.68900-3-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds DT bindings for the Microsemi/Microchip SGPIO controller,
bindings microchip,sparx5-sgpio, mscc,ocelot-sgpio and
mscc,luton-sgpio.
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201113145151.68900-2-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Only a cleanup of unneeded breaks.
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Merge tag 'samsung-pinctrl-5.11' of https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel
Samsung pinctrl drivers changes for v5.11
Only a cleanup of unneeded breaks.
- Add QSPI pin groups on R-Car E3, H3, M3-W/W+, and M3-N,
- A small fix for a Clang warning.
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Merge tag 'renesas-pinctrl-for-v5.11-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v5.11 (take two)
- Add QSPI pin groups on R-Car E3, H3, M3-W/W+, and M3-N,
- A small fix for a Clang warning.
Some products, like sama7g5, do not have a full last bank of PIO lines.
In this case for example, sama7g5 only has 8 lines for the PE bank.
PA0-31, PB0-31, PC0-31, PD0-31, PE0-7, in total 136 lines.
To cope with this situation, added a data attribute that is product dependent,
to specify the number of lines of the last bank.
In case this number is different from the macro ATMEL_PIO_NPINS_PER_BANK,
adjust the total number of lines accordingly.
This will avoid advertising 160 lines instead of the actual 136, as this
product supports, and to avoid reading/writing to invalid register addresses.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Link: https://lore.kernel.org/r/20201113132429.420940-1-eugen.hristev@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* Add Intel Alder Lake-S pin controller support
* Add Intel Elkhart Lake pin controller support
* Add Intel Lakefield driver pin controller support
* Miscellaneous fixes for Intel Lynxpoint driver
The following is an automated git shortlog grouped by driver:
intel:
- Add Intel Alder Lake-S pin controller support
- Add Intel Elkhart Lake pin controller support
- Add blank line before endif in Kconfig
- Add Intel Lakefield pin controller support
lynxpoint:
- Enable pin configuration setting for GPIO chip
- Use defined constant for disabled bias explicitly
- Unify initcall location in the code
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Merge tag 'intel-pinctrl-v5.11-1' of gitolite.kernel.org:pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.11-1
* Add Intel Alder Lake-S pin controller support
* Add Intel Elkhart Lake pin controller support
* Add Intel Lakefield driver pin controller support
* Miscellaneous fixes for Intel Lynxpoint driver
The following is an automated git shortlog grouped by driver:
intel:
- Add Intel Alder Lake-S pin controller support
- Add Intel Elkhart Lake pin controller support
- Add blank line before endif in Kconfig
- Add Intel Lakefield pin controller support
lynxpoint:
- Enable pin configuration setting for GPIO chip
- Use defined constant for disabled bias explicitly
- Unify initcall location in the code
It is found on many allwinner soc that there is a low probability that
the interrupt status cannot be read in sunxi_pinctrl_irq_handler. This
will cause the interrupt status of a gpio bank to always be active on
gic, preventing gic from responding to other spi interrupts correctly.
So we should call the chained_irq_* each time enter sunxi_pinctrl_irq_handler().
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/85263ce8b058e80cea25c6ad6383eb256ce96cc8.1604988979.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The interrupt descriptor cannot be found in the interrupt processing
function, and this situation cannot happen when the system is running
normally. It doesn't seem right to return directly to the status of not
handling gic. In this case, it must be a bug, let's mark it with
WARN_ON.
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Link: https://lore.kernel.org/r/470ebae22fc5434ad5409c4f6e29255467b3cef6.1604988979.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
One fixup following my patch commit be117ca322 ("pinctrl:
qcom: Kconfig: Rework PINCTRL_MSM to be a depenency rather then
a selected config") being queued in LinusW's tree, as a new
config entry was added for the msm8953 that also needs the
change.
Applies to LinusW's pinctrl devel tree.
Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Prasad Sodagudi <psodagud@codeaurora.org>
Cc: Vladimir Lypak <junak.pub@gmail.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Link: https://lore.kernel.org/r/20201110215619.86076-1-john.stultz@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This reverts commit d0511b5496.
After some time it was noticed that the Tegra186 among others
were experiencing problems when making this into a module.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since commit 4b563a0666 ("ARM: imx: Remove imx21 support") the imx21
SoC is no longer supported.
Get rid of its pinctrl driver too, which is now unused.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Link: https://lore.kernel.org/r/20201110190210.29376-1-festevam@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Add remaining video-in (VIN) pin groups on R-Car H2 and RZ/G1H,
- Image size optimizations and code consolidations,
- Minor fixes and improvements.
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Merge tag 'renesas-pinctrl-for-v5.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v5.11
- Add remaining video-in (VIN) pin groups on R-Car H2 and RZ/G1H,
- Image size optimizations and code consolidations,
- Minor fixes and improvements.
Baytrail pin control has a common register to set up debounce timeout.
When a pin configuration requested debounce to be disabled, the rest
of the pins may still want to have debounce enabled and thus rely on
the common timeout value. Avoid clearing debounce value when turning
it off for one pin while others may still use it.
Fixes: 658b476c74 ("pinctrl: baytrail: Add debounce configuration")
Depends-on: 04ff5a095d ("pinctrl: baytrail: Rectify debounce support")
Depends-on: 827e1579e1 ("pinctrl: baytrail: Rectify debounce support (part 2)")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
The only usage of sh73a0_vccq_mc0_ops is to assign its address to the
ops field in the regulator_desc struct, which is a const pointer. Make
it const to allow the compiler to put it in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20201109221012.177478-1-rikard.falkeborn@gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
On SuperH and ARM SH/R-Mobile SoCs, the pin control driver handles
GPIOs, too. To reduce code size when compiling a kernel supporting only
modern SoCs, most, but not all, of the GPIO functionality is protected
by checks for CONFIG_PINCTRL_SH_FUNC_GPIO.
Factor out the remaining parts when not needed:
1. sh_pfc_soc_info.{in,out}put describe GPIO pins that have input
resp. output capabilities (SuperH and SH/R-Mobile).
2. sh_pfc_soc_info.gpio_irq{,_size} describe the mapping from GPIO
pins to interrupt numbers (SH/R-Mobile).
3. sh_pfc_gpio_set_direction() configures GPIO direction, called from
the GPIO driver through pinctrl_gpio_direction_{in,out}put()
(SH/R-Mobile). Unfortunately this function cannot just be moved to
drivers/pinctrl/renesas/gpio.c, as it relies on knowledge of
sh_pfc_pinctrl, which is internal to
drivers/pinctrl/renesas/pinctrl.c.
While code size reduction is minimal, this does help in documenting
depencies.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028151637.1734130-9-geert+renesas@glider.be
Currently, the rcar_pinmux_[gs]et_bias() helpers handle only SoCs that
have separate LSI Pin Pull-Enable (PUEN) and Pull-Up/Down Control (PUD)
registers, like R-Car Gen3 and RZ/G2. Update the function to handle
SoCs that have only LSI Pin Pull-Up Control Register (PUPR), like R-Car
Gen1/Gen2 and RZ/G1.
Reduce code duplication by converting the R-Car M1A pin control driver
to use the common handler.
Note that this changes behavior in case the (invalid!) option
"bias-pull-down" is used in an R-Car M1A DTS: before, it was ignored
silently; after this change, it is considered the same as
"bias-pull-up".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028151637.1734130-8-geert+renesas@glider.be
The handling of the LSI Pin Pull-Up Control Registers (PUPR) on R-Car
M1A uses register offsets instead of register physical addresses.
This is different from the handling on other R-Car parts.
Convert the bias handling from register offsets to physical addresses.
This increases uniformity, and prepares for consolidation of the bias
handling.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028151637.1734130-7-geert+renesas@glider.be
Shrink sh_pfc_pin_config from 8 to 2 bytes:
- The mux_set flag can be removed, as a non-zero mark value means the
same (zero = PINMUX_RESERVED is an invalid mark value),
- The gpio_enabled flag needs only a single bit,
- Mark values are small integers, and can easily fit in a 15-bit
bitfield.
This saves 6 bytes per pin when allocating the sh_pfc_pinctrl.configs
array, i.e. it reduces run-time memory consumption by ca. 1.5 KiB.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028151637.1734130-5-geert+renesas@glider.be
On arm64, pointer size and alignment is 64-bit, hence a 4-byte hole is
present in between the enum_id and name members of the sh_pfc_pin
structure. Get rid of this hole by sorting the structure's members by
decreasing size.
This saves up to 1.5 KiB per enabled SoC, and reduces the size of a
kernel including support for all R-Car Gen3 SoCs by more than 10 KiB.
This has no size impact on SH and arm32.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201028151637.1734130-4-geert+renesas@glider.be
This driver supports both RZ/G1[MN] and R-Car M2-W/M2-N SoCs.
Optimize pinctrl image size for RZ/G1[MN], when support for R-Car
M2-W/M2-N (R8A779[13]) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019124258.4574-7-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This driver supports both RZ/G1H and R-Car H2 SoCs.
Optimize pinctrl image size for RZ/G1H, when support for R-Car H2
(R8A7790) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019124258.4574-6-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This driver supports both RZ/G2E and R-Car E3 SoCs.
Optimize pinctrl image size for RZ/G2E, when support for R-Car E3
(R8A77990) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019124258.4574-5-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This driver supports both RZ/G2N and R-Car M3-N SoCs.
Optimize pinctrl image size for RZ/G2N, when support for R-Car M3-N
(R8A77965) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019124258.4574-4-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This driver supports both RZ/G2M and R-Car M3-W/W+ SoCs.
Optimize pinctrl image size for RZ/G2M, when support for R-Car M3-W/W+
(R8A7796[01]) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019132805.5996-1-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This driver supports both RZ/G2H and R-Car H3 ES2 SoCs.
Optimize pinctrl image size for RZ/G2H, when support for R-Car H3 ES2
(R8A77951) is not enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20201019124258.4574-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
When GPIO library asks pin control to set the bias, it doesn't pass
any value of it and argument is considered boolean (and this is true
for ACPI GpioIo() / GpioInt() resources, by the way). Thus, individual
drivers must behave well, when they got the resistance value of 1 Ohm,
i.e. transforming it to sane default.
In case of Intel Merrifield pin control hardware the 20 kOhm sounds plausible
because it gives a good trade off between weakness and minimization of leakage
current (will be only 50 uA with the above choice).
Fixes: 4e80c8f505 ("pinctrl: intel: Add Intel Merrifield pin controller support")
Depends-on: 2956b5d94a ("pinctrl / gpio: Introduce .set_config() callback for GPIO chips")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
GPIOs that attempt to use interrupts get thwarted with a message like:
"pin 161 cannot be used as IRQ" (for instance with SD_CD). This is because
the HOSTSW_OWN offset is incorrect, so every GPIO looks like it's
owned by ACPI.
Fixes: e278dcb704 ("pinctrl: intel: Add Intel Jasper Lake pin controller support")
Cc: stable@vger.kernel.org
Signed-off-by: Evan Green <evgreen@chromium.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
If the group of pins is hidden in the pin list it affects
the register offset calculation despite fixed GPIO base.
Hence, the offsets of all pins after the hidden group
are broken. Instead we have to unhide the group and use a flag
to exclude it from GPIO number space.
Fixes: e278dcb704 ("pinctrl: intel: Add Intel Jasper Lake pin controller support")
Reported-by: Divagar Mohandass <divagar.mohandass@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
It appears that pin configuration for GPIO chip hasn't been enabled yet
due to absence of ->set_config() callback.
Enable it here for Intel Lynxpoint PCH.
Depends-on: 2956b5d94a ("pinctrl / gpio: Introduce .set_config() callback for GPIO chips")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
We have a specific constant to describe a disabled bias,
i.e. GPIWP_NONE. Use it explicitly instead of making
an assumption about its value.
While at it, move argument assignment to the switch-case
in lp_pin_config_get().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Replace the two separate calls for setting the irq handler and data with a
single irq_set_chained_handler_and_data() call.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20201108180144.28594-1-martin@kaiser.cx
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit be117ca322 ("pinctrl: qcom: Kconfig: Rework PINCTRL_MSM to be a
dependency rather then a selected config") moved the qcom pinctrl drivers
to have PINCTRL_MSM as dependency rather then a selected config, so do
this change for SDX55 pinctrl driver as well.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20201111043610.177168-1-vkoul@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need a more granular distribution among funcion A
and function B for the LCD pins for the Samsung
GT-I9070. Provide some new pin groups so we can
configure this phone properly.
Link: https://lore.kernel.org/r/20201110232330.2242167-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds support for Serval pinctrl, using the ocelot driver as
basis. It adds pinconfig support as well, as supported by the
platform.
gclement: Split from a larger patch adding support all platforms in
the same time.
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20201106093118.965152-5-gregory.clement@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds support for Luton pinctrl, using the ocelot driver as
basis. It adds pinconfig support as well, as supported by the
platform.
gclement: Split from a larger patch adding support all platforms in
the same time.
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20201106093118.965152-4-gregory.clement@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
