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Three video input signals suffered from a search/replace failure in
some copied code.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1. Add support for pad retention control through pinctrl drivers which
moves us forward to better runtime PM of pinctrl, clocks, power domains
and other devices.
2. Fix GPIO hogs by registering pinctrl before registering gpiolib.
3. Use devm-like interface.
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Merge tag 'samsung-pinctrl-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel
Samsung pinctrl drivers update for v4.12:
1. Add support for pad retention control through pinctrl drivers which
moves us forward to better runtime PM of pinctrl, clocks, power domains
and other devices.
2. Fix GPIO hogs by registering pinctrl before registering gpiolib.
3. Use devm-like interface.
The commit 1259feddd0f8("pinctrl: samsung: Fix the width of
PINCFG_TYPE_DRV bitfields for Exynos5433") already fixed
the different width of PINCFG_TYPE_DRV from previous Exynos SoC.
However wrong merge conflict resolution was chosen in commit
7f36f5d11cda ("Merge tag 'v4.10-rc6' into devel") effectively dropping
the changes for PINCFG_TYPE_DRV. Re-do them here.
The macro EXYNOS_PIN_BANK_EINTW is no longer used so remove it.
Fixes: 7f36f5d11cda ("Merge tag 'v4.10-rc6' into devel")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When suspending to RAM, the power to the core is cut and the register
values are lost. Save and restore more registers than just IMR.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Correct the incorrect function name and description.
Fixes: a76edc89b100e4fe ("pinctrl: core: Add generic pinctrl functions for managing groups")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pinctrl driver support for the Axis ARTPEC-6 SoC.
There are only some pins that actually have different
functions available, but all can control bias (pull-up/-down)
and drive strength.
Code originally written by Chris Paterson.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The NAND DQS pins are currently named nand_dqs_0 and nand_dqs_1.
However, they both seem to have the same function, just exposed on
different pins (unlike the ethernet TX pins for example, where there's
eth_txd0..3 - all of these can be active at the same time as they are
different data lines).
Rename the NAND DQS pins to nand_dqs_15 and nand_dqs_18 to reflect that
it's the same functionality just exposed on different pins (BOOT_15 and
BOOT_18).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The nand_groups table uses different names for the NAND DQS pins than
the GROUP() definition in meson8b_cbus_groups (nand_dqs_0 vs nand_dqs0).
This prevents using the NAND DQS pins in the devicetree.
Fix this by ensuring that the GROUP() definition and the
meson8b_cbus_groups use the same name for these pins.
Fixes: 0fefcb6876d0 ("pinctrl: Add support for Meson8b")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Recent pinctrl changes to allow dynamic allocation of pins exposed one
more issue with the pinctrl pins claimed early by the controller itself.
This caused a regression for IMX6 pinctrl hogs.
Before enabling the pin controller driver we need to wait until it has
been properly initialized, then claim the hogs, and only then enable it.
To fix the regression, split the code into pinctrl_claim_hogs() and
pinctrl_enable(). And then let's require that pinctrl_enable() is always
called by the pin controller driver when ready after calling
pinctrl_register_and_init().
Depends-on: 950b0d91dc10 ("pinctrl: core: Fix regression caused by delayed
work for hogs")
Fixes: df61b366af26 ("pinctrl: core: Use delayed work for hogs")
Fixes: e566fc11ea76 ("pinctrl: imx: use generic pinctrl helpers for
managing groups")
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Mika Penttilä <mika.penttila@nextfour.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
All R8A7794 manuals I have here (0.50 and 1.10) agree that the PFC driver
has ATAG0# and ATAWR0# signals in IPSR12 swapped -- fix this.
Fixes: 43c4436e2f18 ("pinctrl: sh-pfc: add R8A7794 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
- Add basic support for the Pin Function Controller on revision ES2.0
of the R-Car H3 SoC, which differs from ES1.x in many ways.
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Merge tag 'sh-pfc-for-v4.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v4.12 (take two)
- Add basic support for the Pin Function Controller on revision ES2.0
of the R-Car H3 SoC, which differs from ES1.x in many ways.
The IPSR field names in the comments have been fat-fingered in a couple
places -- fix those silly typos...
Fixes: 508845196238 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
PINMUX_IPSR_MSEL() macro invocation for the TX2 signal has apparently wrong
1st argument -- most probably a result of cut&paste programming...
Fixes: 508845196238 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The R8A7791 PFC driver was apparently based on the preliminary revisions
of the user's manual, which omitted the DVC_MUTE signal altogether in
the PFC section. The modern manual has the signal described, so just add
the necassary data to the driver...
Fixes: 508845196238 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The R8A7791 PFC driver was apparently based on the preliminary revisions
of the user's manual, which omitted the HSCIF1 group E signals in the
IPSR4 register description. This would cause HSCIF1's probe to fail with
the messages like below:
sh-pfc e6060000.pfc: cannot locate data/mark enum_id for mark 1989
sh-sci e62c8000.serial: Error applying setting, reverse things back
sh-sci: probe of e62c8000.serial failed with error -22
Add the neceassary PINMUX_IPSR_MSEL() invocations for the HSCK1_E,
HCTS1#_E, and HRTS1#_E signals...
Fixes: 508845196238 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add pins, groups, and a function for SCIF_CLK on R-Car H3 ES2.0.
SCIF_CLK is the external clock source for the Baud Rate Generator for
External Clock (BRG) on (H)SCIF serial ports.
Extracted from a big patch in the BSP by Takeshi Kihara.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Add pins, groups, and functions for all SCIF serial ports on R-Car H3
ES2.0.
Extracted from a big patch in the BSP by Takeshi Kihara.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
The Pin Function Controller module in the R-Car H3 ES2.0 differs from
ES1.x in many ways.
The goal is twofold:
1. Support both the ES1.x and ES2.0 SoC revisions in a single binary
for now,
2. Make it clear which code supports ES1.x, so it can easily be
identified and removed later, when production SoCs are deemed
ubiquitous.
Hence this patch:
1. Extracts the support for R-Car H3 ES1.x into a separate file, as
the differences are quite large,
2. Adds code for detecting the SoC revision at runtime using the new
soc_device_match() API, and selecting pinctrl tables for the actual
SoC revision,
3. Replaces the core register and bitfield definitions by their
counterparts for R-Car H3 ES2.0.
The addition of pins, groups, and functions for the various on-chip
devices is left to subsequent patches.
The R-Car H3 ES2.0 register and bitfield definitions were extracted from
a patch in the BSP by Takeshi Kihara.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
When trying to add a gpio-hog, we enter a weird loop where the gpio-ranges
is needed when gpiochip_add_data() is called but in the current implementation
the ranges are added from the driver afterwards.
A simple solution is to rely on the DR gpio-ranges attribute and remove the
call to gpiochip_add_pin_range().
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix some inverted bit numbers in some pinctrl groups and add missing pins
and groups to be in pair with the GXBB pinctrl pins definition.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
With real-time preemption, regmap functions cannot be used in the
implementation of irq_chip since they use spinlocks which may sleep.
Move the setting of the mux for IRQs to an irq_bus_sync_unlock handler
where we are allowed to sleep.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We need to avoid calling regmap functions from irq handlers, so the next
commit is going to move the call to rockchip_set_mux() into an
irq_bus_sync_unlock handler. But we can't return an error from there so
we still need to check the settings from rockchip_irq_set_type() and we
will use this new rockchip_verify_mux() function from there.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This lock is used from rockchip_irq_set_type() which is part of the
irq_chip implementation and thus must use raw_spinlock_t as documented
in Documentation/gpio/driver.txt.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
regmap_update_bits does its own locking and everything else accessed
here is a local variable so there is no need to lock around it.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch fix some spelling typos found in printk.
[jkosina@suse.cz: drop arch/arm64/kernel/hibernate.c that was already
in place]
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Use devm_gpiochip_add_data to simplify the error path in
samsung_gpiolib_register.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
If we request a GPIO hog, then gpiochip_add_data will attempt
to request some of its own GPIOs. The driver also uses
gpiochip_generic_request which means that for any GPIO request to
succeed the pinctrl needs to be registered. Currently however the
driver registers the GPIO and then the pinctrl meaning all GPIO hog
requests will fail, which then in turn causes the whole driver to fail
probe.
Fix this up by ensuring we register the pinctrl first. This
does require us to manually set the GPIO base for the
pinctrl. Fortunately the driver already assigns a fixed GPIO base, in
samsung_gpiolib_register, and uses the same calculation it does for
the pin_base. Meaning the two will always be the same and allowing us
to reuse the pinbase and avoid the issue.
Although currently there are no users of GPIO hogs in mainline
there are plenty of Samsung based boards that are widely used for
development purposes of other hardware. Indeed we hit this issue
whilst attaching some additional hardware to an Arndale system.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This patch adds support for retention control for Exynos5433 SoCs. Three
groups of pins has been defined for retention control: common shared group
for ALIVE, CPIF, eSE, FINGER, IMEM, NFC, PERIC, TOUCH pin banks and
separate control for FSYS and AUD pin banks, for which PMU retention
registers match whole banks.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
When pin controller device is a part of power domain, there is no guarantee
that the power domain was not turned off and then on during boot process
before probing of the pin control driver. If it happened, then pin control
driver should ensure that pad retention is turned off during its probe call.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
On some Cherry Trail devices the ASL uses the GMMR GPIO to access
GPIOs so as to serialize MMIO accesses to GPIO registers with the
OS, because:
"Due to a silicon issue, a shared lock must be used to prevent concurrent
accesses across the 4 GPIO controllers.
See Intel Atom Z8000 Processor Series Specification Update (Rev. 005),
errata #CHT34, for further information."
This commit adds support for this opregion, this fixes a number of
ASL errors on my Ezpad mini3 tablet and makes the otg port device/host
muxing which is controlled in firmware on this model work properly.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Rockchip finally named the SOC as RV1108, so change it.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
[adapted rk1108 dtsi to keep bisectability]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds the missing PINGROUP for GPIO70-99.
This fixes a crash that happens in pinctrl-msm, if any
of the GPIO70-99 are accessed.
Fixes: 5303f7827fcd41d ("pinctrl: qcom: ipq4019: set ngpios to correct value")
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When using GPIO as IRQ source, the GPIO must be configured
in INPUT. Callbacks dedicated for this was missing in
pinctrl-st driver.
This fix the following kernel error when trying to lock a gpio
as IRQ:
[ 7.521095] gpio gpiochip7: (PIO11): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ
[ 7.526018] gpio gpiochip7: (PIO11): unable to lock HW IRQ 6 for IRQ
[ 7.529405] genirq: Failed to request resources for 0-0053 (irq 81) on irqchip GPIO
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Clearing the status bit on irq_unmask will discard any pending interrupt
that did arrive after the irq_ack, i.e. while the IRQ handler function
was executing.
Fixes: f365be092572 ("pinctrl: Add Qualcomm TLMM driver")
Cc: stable@vger.kernel.org
Cc: Stephen Boyd <sboyd@codeaurora.org>
Reported-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some pinctrls share memory regions, and devm_ioremap_resource does not
allow to share resources, in opposition to devm_ioremap.
This patch restores back usage of devm_ioremap function, but with proper
error handling and logging.
Fixes: baafaca ("pinctrl: samsung: Fix return value check in samsung_pinctrl_get_soc_data()")
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As the IODelay driver is a hardware feature of the DRA7xxx SoC
depend on that SoC and compile test.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently we are trying to enable/disable the clk of irq's gpio bank when
unmask/mask irq. But the kernel's "lazy disable approach" will skip masking
irq when the irq chip doesn't support irq_disable ops.
So we may hit this case:
irq_enable-> enable clk
irq_disable-> noop
irq_enable-> enable clk again
irq_disable-> noop
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
At first these drivers were written as tristate, but the module
usecases are actually not tested. Make all of them boolean.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since commit 3e030b0b4e46 ("pinctrl: uniphier: allow to have pinctrl
node under syscon node"), this driver has kept compatibility for the
old DT files. Several releases have passed since then, so remove
the obsoleted compatibles and clean up the code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This adds support for the missing PWM pins on Meson GXL SoCs, namely:
- PWM_A
- PWM_B
- PWM_C
- PWM_F (GPIOX_7 and GPIOCLK_1 can be selected as output)
- PWM_AO_A (GPIOAO_3 and GPIOAO_8 can be selected as output)
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Update the sh_pfc_soc_info pointer after calling the SoC-specific
initialization function, as it may have been updated to e.g. handle
different SoC revisions. This makes sure the correct subdriver name is
printed later.
Fixes: 0c151062f32c9db8 ("sh-pfc: Add support for SoC-specific initialization")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Somehow the QSPI and SCIF_CLK fragments were inserted at the wrong
positions. Restore sort order (alphabetically, per group).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The sunxi pinctrl driver currently implement an irq_chip for handling
interrupts; due to how irq_chip handling is done, it's necessary for the
irq_chip methods to be invoked from hardirq context, even on a a
real-time kernel. Because the spinlock_t type becomes a "sleeping"
spinlock w/ RT kernels, it is not suitable to be used with irq_chips.
A quick audit of the operations under the lock reveal that they do only
minimal, bounded work, and are therefore safe to do under a raw spinlock.
Signed-off-by: Julia Cartwright <julia@ni.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
