The code was written under the assumption that the
regmap_update_bits() would mask the bits in the mask and
set the bits in the value.
It missed the points that it will not set bits in the value
unless these are also masked in the mask. Set value bits
that are not in the mask will simply be ignored.
Fixes: 06351d133d ("pinctrl: add a Gemini SoC pin controller")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Removing the linux/gpio.h include means we no longer have a declaration
of gpiochip_lock_as_irq() when CONFIG_GPIOLIB is disabled:
drivers/pinctrl/mediatek/mtk-eint.c: In function 'mtk_eint_irq_request_resources':
drivers/pinctrl/mediatek/mtk-eint.c:247:8: error: implicit declaration of function 'gpiochip_lock_as_irq'; did you mean 'spin_lock_irq'? [-Werror=implicit-function-declaration]
drivers/pinctrl/mediatek/mtk-eint.c: In function 'mtk_eint_irq_release_resources':
drivers/pinctrl/mediatek/mtk-eint.c:272:2: error: implicit declaration of function 'gpiochip_unlock_as_irq'; did you mean 'spin_unlock_irq'? [-Werror=implicit-function-declaration]
Select it explictly instead.
Fixes: 1c5fb66afa ("pinctrl: Include <linux/gpio/driver.h> nothing else")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If the probe function fails the driver core cares to return the allocated
resources automatically. So the driver can be simplified accordingly.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Add support for the new RZ/N1D (R9A06G032) and RZ/N1S (R9A06G033)
SoCs,
- Add INTC-EX pin groups on R-Car E3.
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Merge tag 'sh-pfc-for-v4.20-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v4.20 (take three)
- Add support for the new RZ/N1D (R9A06G032) and RZ/N1S (R9A06G033)
SoCs,
- Add INTC-EX pin groups on R-Car E3.
This driver provides support for Northstar mux controller. It differs
from Northstar Plus one so a new binding and driver were needed.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The 'tiles' array is initialized to a constant pointers to constant
strings, but the declaration is only half as constant:
drivers/pinctrl/qcom/pinctrl-qcs404.c:1660:11: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
drivers/pinctrl/qcom/pinctrl-sdm660.c:1417:11: error: initialization discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
Let's make it more constant.
Fixes: 22eb8301db ("pinctrl: qcom: Add qcs404 pinctrl driver")
Fixes: a46d5e9819 ("pinctrl: qcom: Support dispersed tiles")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The .to_irq() function obviously takes the per-chip offset
as parameter, not the global GPIO number.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The parameter 'community' had been spelled incorrectly.
Fix it here.
As a side effect it satisfies static checkers that issue
the following warnings:
drivers/pinctrl/intel/pinctrl-intel.c:845: warning: Function parameter or member 'community' not described in 'intel_gpio_to_pin'
drivers/pinctrl/intel/pinctrl-intel.c:845: warning: Excess function parameter 'commmunity' description in 'intel_gpio_to_pin'
Signed-off-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>
Simple type conversion with no functional change implied.
Signed-off-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>
Simple type conversion with no functional change implied.
Signed-off-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>
Simple type conversion with no functional change implied.
Signed-off-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>
Simple type conversion with no functional change implied.
Signed-off-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>
Add pins, groups, and function for the Interrupt Controller for
External Devices (INTC-EX) on the R-Car E3 SoC.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
This provides a pinctrl driver for the Renesas RZ/N1 device family.
Based on a patch originally written by Michel Pollet at Renesas.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This code needs to select function #0, which is the first int in the
array of functions, not the number 0 which may or may not be the
function for "GPIO mode" per the enum mapping. We were getting lucky on
SDM845, where this was tested, because the function 0 matched the enum
value for "GPIO mode". On other platforms, e.g. MSM8996, the gpio enum
value is the last one in the list so this code doesn't work and we see a
warning at boot. Fix it by grabbing the first element out of the array
of functions.
Cc: Doug Anderson <dianders@chromium.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Niklas Cassel <niklas.cassel@linaro.org>
Reported-by: Niklas Cassel <niklas.cassel@linaro.org>
Fixes: 1de7ddb3a1 ("pinctrl: msm: Mux out gpio function with gpio_request()")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some drivers, for example, QCOM's qdf2xxx, set groups[gpio].name only
when gpio is valid, and leave invalid gpio names as null.
If we want to access the sys node "pinconf-groups",
pinctrl_get_group_selector() -> get_group_name() may return a null
pointer if group_selector is invalid, then the below Kernel panic
would happen since strcmp() uses this null pointer to do comparison.
Unable to handle kernel NULL pointer dereference at ss 00000000
el:Internal error: Oops: 9600000[ 143.080279]
SMP
CPU: 19 PID: 2493 Comm: read_all Tainted: G O
.aarch64 #1
Hardware name: HXT Semiconductor HXT REP-2 System
PC is at strcmp+0x18/0x154
LR is at pinctrl_get_group_selector+0x6c/0xe8
Process read_all (pid: 2493, stack limit =
Call trace:
Exception stack
strcmp+0x18/0x154
pin_config_group_get+0x64/0xd8
pinconf_generic_dump_one+0xd8/0x1c0
pinconf_generic_dump_pins+0x94/0xc8
pinconf_groups_show+0xb4/0x104
seq_read+0x178/0x464
full_proxy_read+0x6c/0xac
__vfs_read+0x58/0x178
vfs_read+0x94/0x164
SyS_read+0x60/0xc0
__sys_trace_return+0x0/0x4
--[ end trace]--
Kernel panic - not syncing: Fatal exception
Signed-off-by: Yanjiang Jin <yanjiang.jin@hxt-semitech.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Add MSIOF pin groups on R-Car E3 and D3,
- Add support for the new RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs,
- Add I2C4, DU0, QSPI0, SDHI2, and USB pin groups on RZ/G1C,
- Convert to SPDX license identifiers,
- Small cleanups.
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Merge tag 'sh-pfc-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: sh-pfc: Updates for v4.20 (take two)
- Add MSIOF pin groups on R-Car E3 and D3,
- Add support for the new RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs,
- Add I2C4, DU0, QSPI0, SDHI2, and USB pin groups on RZ/G1C,
- Convert to SPDX license identifiers,
- Small cleanups.
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Merge tag 'v4.19-rc6' into devel
This is the 4.19-rc6 release
I needed to merge this in because of extensive conflicts in
the MSM and Intel pin control drivers. I know how to resolve
them, so let's do it like this.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Renesas RZ/G SoCs are pin compatible with R-Car SoCs, but lack several
automotive-specific peripherals.
Currently pin groups and functions for automotive-specific peripherals
are grouped in arrays named after the automative SoC part numbers.
Rename them to "automotive" for clarity and consistency.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
It will be failed to select default or sleep state for pins hogged
by the pin controller device, since we hadn't parsed pins configuration
in device tree before registering the pin controller device. Thus
we should move the device tree parsing function before registering
the pin controller device.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
mtk_eint_set_debounce and mtk_eint_find_irq are defined as stub functions
in a header file, but without marking them as 'static inline', we get
a copy for each file that includes the header:
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o: In function `mtk_eint_set_debounce':
pinctrl-mtk-common-v2.c:(.text+0x134): multiple definition of `mtk_eint_set_debounce'
drivers/pinctrl/mediatek/pinctrl-moore.o:pinctrl-moore.c:(.text+0x7d0): first defined here
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o: In function `mtk_eint_find_irq':
pinctrl-mtk-common-v2.c:(.text+0x13c): multiple definition of `mtk_eint_find_irq'
Fixes: e46df235b4 ("pinctrl: mediatek: refactor EINT related code for all MediaTek pinctrl can fit")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently, the check on desc->eint.eint_n == EINT_NA is always false
because this is comparing a u16 to -1 which can never be true. Fix
this by casting EINT_NA to u16.
Detected by CoverityScan, CID#1473610 ("Operands don't affect result")
Fixes: fb5fa8dc15 ("pinctrl: mediatek: extend struct mtk_pin_desc to pinctrl-mtk-common-v2.c")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add initial pinctrl driver to support pin configuration with
pinctrl framework for qcs404.
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
Signed-off-by: Anu Ramanathan <anur@codeaurora.org>
[bjorn: Reworked tile handling and did some minor rework]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On some new platforms the tiles have been placed too far apart to be
covered in a single ioremap. Turn "regs" into an array of base addresses
and make the pingroup carry the information about which tile the pin
resides in.
For existing platforms we map the first entry regs and the existing
pingroups will all use tile 0, meaning that there's no functional
change.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In preparation for the support for dispersed tiles move all readl and
writel calls to helper functions. This will allow us to isolate the
added complexity of another indirection.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This reverts commit 55aedef50d.
Commit 55aedef50d ("pinctrl: intel: Do pin translation when lock IRQ")
added special translation from GPIO number to hardware pin number to
irq_reqres/relres hooks to avoid failure when IRQs are requested. The
actual failure happened inside gpiochip_lock_as_irq() because it calls
gpiod_get_direction() and pinctrl-intel.c::intel_gpio_get_direction()
implementation originally missed the translation so the two hooks made
it work by skipping the ->get_direction() call entirely (it overwrote
the default GPIOLIB provided functions).
The proper fix that adds translation to GPIO callbacks was merged with
commit 96147db1e1 ("pinctrl: intel: Do pin translation in other GPIO
operations as well"). This allows us to use the default GPIOLIB provided
functions again.
In addition as find out by Benjamin Tissoires the two functions
(intel_gpio_irq_reqres()/intel_gpio_irq_relres()) now cause problems of
their own because they operate on pin numbers and pass that pin number
to gpiochip_lock_as_irq() which actually expects a GPIO number.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199911
Fixes: 55aedef50d ("pinctrl: intel: Do pin translation when lock IRQ")
Reported-and-tested-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It turns out the HOSTSW_OWN register offset is different between LP and
H variants. The latter should use 0xc0 instead so fix that.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199911
Fixes: a663ccf0fe ("pinctrl: intel: Add Intel Cannon Lake PCH-H pin controller support")
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Consolidate IO accessors in the code to make maintenance a little bit easier
in the future.
No functional change intended.
Signed-off-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>
mrfld_read_bufcfg() helper checks if pin is correct and reads back
the current value of corresponding BUFCFG register.
While it adds lines of code it will be easier to maintain in the future.
Signed-off-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>
From the AMD BKDG, if WAKE_INT_MASTER_REG.MaskStsEn is set, a software
write to the debounce registers of *any* gpio will block wake/interrupt
status generation for *all* gpios for a length of time that depends on
WAKE_INT_MASTER_REG.MaskStsLength[11:0]. During this period the Interrupt
Delivery bit (INTERRUPT_ENABLE) will read as 0.
In commit 4c1de0414a ("pinctrl/amd: poll InterruptEnable bits in
enable_irq") we tried to fix this same "gpio Interrupts are blocked
immediately after writing debounce registers" problem, but incorrectly
assumed it only affected the gpio whose debounce was being configured
and not ALL gpios.
To solve this for all gpios, we move the polling loop from
amd_gpio_irq_enable() to amd_gpio_irq_set_type(), while holding the gpio
spinlock. This ensures that another gpio operation (e.g.
amd_gpio_irq_unmask()) can read a temporarily disabled IRQ and
incorrectly disable it while trying to modify some other register bits.
Fixes: 4c1de0414a pinctrl/amd: poll InterruptEnable bits in enable_irq
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
fixes following Smatch static check warning:
./drivers/pinctrl/sunxi/pinctrl-sunxi.c:1112 sunxi_pinctrl_build_state()
warn: passing devm_ allocated variable to kfree. 'pctrl->functions'
As we will be calling krealloc() on pointer 'pctrl->functions', which means
kfree() will be called in there, devm_kzalloc() shouldn't be used with
the allocation in the first place. Fix the warning by calling kcalloc()
and managing the free procedure in error path on our own.
Fixes: 0e37f88d9a ("ARM: sunxi: Add pinctrl driver for Allwinner SoCs")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Just add eint support to MT6765 pinctrl driver as usual as
happens on the other SoCs.
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add MT6765 pinctrl driver based on MediaTek pinctrl-paris core.
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: ZH Chen <zh.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add NO_EINT_SUPPORT back to pinctrl-mtk-common-v2.h as the alias of
EINT_NA to indicate that some pin not capable of being controlled as eint
and that is required by pinctrl-paris based driver as old
pinctrl-mtk-common.h already had.
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In case of error, the function devm_kmalloc_array() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: b7d7f9eeca ("pinctrl: mediatek: extend struct mtk_pin_desc which per-pin driver depends on")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fixes the following sparse warning:
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c:37:29: warning:
symbol 'mtk_drive' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In case of error, the function devm_kmalloc_array() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: 805250982b ("pinctrl: mediatek: add pinctrl-paris that implements the vendor dt-bindings")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
'ret' should be returned while pmic_mpp_write_mode_ctl fails.
Fixes: 0e948042c4 ("pinctrl: qcom: spmi-mpp: Implement support for sink mode")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
No user of mxs_pinctrl_probe() can be built as a module, hence
exporting the symbol is not necessary. Drop EXPORT_SYMBOL_GPL.
Inspired by a patch from Stefan Agner for the tegra pinctrl driver.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
For some reason I thought GPIOLIB handles translation from GPIO ranges
to pinctrl pins but it turns out not to be the case. This means that
when GPIOs operations are performed for a pin controller having a custom
GPIO base such as Cannon Lake and Ice Lake incorrect pin number gets
used internally.
Fix this in the same way we did for lock/unlock IRQ operations and
translate the GPIO number to pin before using it.
Fixes: a60eac3239 ("pinctrl: intel: Allow custom GPIO base for pad groups")
Reported-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
No user of tegra_pinctrl_probe can be built as a module, hence
exporting the symbol is not necessary. Drop EXPORT_SYMBOL_GPL.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add USB[01] pin groups and functions to the R8A77470 SoC.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add SDHI2 pin groups and functions to the R8A77470 SoC.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add QSPI0 pin groups and function to the R8A77470 SoC.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add DU0 pin groups and function to the R8A77470 SoC.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add I2C4 pin groups and function to the R8A77470 SoC.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Renesas RZ/G2E (a.k.a. r8a774c0) is pin compatible with R-Car
E3 (a.k.a. r8a77990), however it doesn't have several automotive
specific peripherals. Add a r8a77990 specific pin groups/functions
along with common pin groups/functions for supporting both r8a77990
and r8a774c0 SoCs.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
