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Some of the pins were not exposed in the initial driver or kept as
reserved. Exposing all of them now.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20201007111220.744348-1-Shyam-sundar.S-k@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The Toshiba Visconti TMPV7700 series pin controller is only present on
Visconti SoCs. Hence add a dependency on ARCH_VISCONTI, to prevent
asking the user about this driver when configuring a kernel without
Visconti platform support.
Fixes: a68a7844264e4fb9 ("pinctrl: visconti: Add Toshiba Visconti SoCs pinctrl support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20201005125049.26926-1-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The pinctrl driver can work without the EINT resource, but, if it is
expected to have this resource but the mtk_build_eint() function fails
after allocating their data (because can't get the resource or can't map
the irq), the data is not freed and you end with a NULL pointer
dereference. Fix this by freeing the data if mtk_build_eint() fails, so
pinctrl still works and doesn't hang.
This is noticeable after commit f97dbf48ca43 ("irqchip/mtk-sysirq: Convert
to a platform driver") on MT8183 because, due this commit, the pinctrl driver
fails to map the irq and spots the following bug:
[ 1.947597] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004
[ 1.956404] Mem abort info:
[ 1.959203] ESR = 0x96000004
[ 1.962259] EC = 0x25: DABT (current EL), IL = 32 bits
[ 1.967565] SET = 0, FnV = 0
[ 1.970613] EA = 0, S1PTW = 0
[ 1.973747] Data abort info:
[ 1.976619] ISV = 0, ISS = 0x00000004
[ 1.980447] CM = 0, WnR = 0
[ 1.983410] [0000000000000004] user address but active_mm is swapper
[ 1.989759] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[ 1.995322] Modules linked in:
[ 1.998371] CPU: 7 PID: 1 Comm: swapper/0 Not tainted 5.9.0-rc1+ #44
[ 2.004715] Hardware name: MediaTek krane sku176 board (DT)
[ 2.010280] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--)
[ 2.015850] pc : mtk_eint_set_debounce+0x48/0x1b8
[ 2.020546] lr : mtk_eint_set_debounce+0x34/0x1b8
[ 2.025239] sp : ffff80001008baa0
[ 2.028544] x29: ffff80001008baa0 x28: ffff0000ff7ff790
[ 2.033847] x27: ffff0000f9ec34b0 x26: ffff0000f9ec3480
[ 2.039150] x25: ffff0000fa576410 x24: ffff0000fa502800
[ 2.044453] x23: 0000000000001388 x22: ffff0000fa635f80
[ 2.049755] x21: 0000000000000008 x20: 0000000000000000
[ 2.055058] x19: 0000000000000071 x18: 0000000000000001
[ 2.060360] x17: 0000000000000000 x16: 0000000000000000
[ 2.065662] x15: ffff0000facc8470 x14: ffffffffffffffff
[ 2.070965] x13: 0000000000000001 x12: 00000000000000c0
[ 2.076267] x11: 0000000000000040 x10: 0000000000000070
[ 2.081569] x9 : ffffaec0063d24d8 x8 : ffff0000fa800270
[ 2.086872] x7 : 0000000000000000 x6 : 0000000000000011
[ 2.092174] x5 : ffff0000fa800248 x4 : ffff0000fa800270
[ 2.097476] x3 : ffff8000100c5000 x2 : 0000000000000000
[ 2.102778] x1 : 0000000000000000 x0 : 0000000000000000
[ 2.108081] Call trace:
[ 2.110520] mtk_eint_set_debounce+0x48/0x1b8
[ 2.114870] mtk_gpio_set_config+0x5c/0x78
[ 2.118958] gpiod_set_config+0x5c/0x78
[ 2.122786] gpiod_set_debounce+0x18/0x28
[ 2.126789] gpio_keys_probe+0x50c/0x910
[ 2.130705] platform_drv_probe+0x54/0xa8
[ 2.134705] really_probe+0xe4/0x3b0
[ 2.138271] driver_probe_device+0x58/0xb8
[ 2.142358] device_driver_attach+0x74/0x80
[ 2.146532] __driver_attach+0x58/0xe0
[ 2.150274] bus_for_each_dev+0x70/0xc0
[ 2.154100] driver_attach+0x24/0x30
[ 2.157666] bus_add_driver+0x14c/0x1f0
[ 2.161493] driver_register+0x64/0x120
[ 2.165319] __platform_driver_register+0x48/0x58
[ 2.170017] gpio_keys_init+0x1c/0x28
[ 2.173672] do_one_initcall+0x54/0x1b4
[ 2.177499] kernel_init_freeable+0x1d0/0x238
[ 2.181848] kernel_init+0x14/0x118
[ 2.185328] ret_from_fork+0x10/0x34
[ 2.188899] Code: a9438ac1 12001266 f94006c3 121e766a (b9400421)
[ 2.194991] ---[ end trace 168cf7b3324b6570 ]---
[ 2.199611] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 2.207260] SMP: stopping secondary CPUs
[ 2.211294] Kernel Offset: 0x2ebff4800000 from 0xffff800010000000
[ 2.217377] PHYS_OFFSET: 0xffffb50500000000
[ 2.221551] CPU features: 0x0240002,2188200c
[ 2.225811] Memory Limit: none
[ 2.228860] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]---
Fixes: 89132dd8ffd2 ("pinctrl: mediatek: extend eint build to pinctrl-mtk-common-v2.c")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20201001142511.3560143-1-enric.balletbo@collabora.com
[rebased on changed infrastructure]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Set IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag to enable/unmask the
wakeirqs during suspend entry.
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1601267524-20199-5-git-send-email-mkshah@codeaurora.org
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msmgpio irqchip was not using return value of irq_set_irq_wake() callback
since previously GIC-v3 irqchip neither had IRQCHIP_SKIP_SET_WAKE flag nor
it implemented .irq_set_wake callback. This lead to irq_set_irq_wake()
return error -ENXIO.
However from 'commit 4110b5cbb014 ("irqchip/gic-v3: Allow interrupt to be
configured as wake-up sources")' GIC irqchip has IRQCHIP_SKIP_SET_WAKE
flag.
Use return value from irq_set_irq_wake() and irq_chip_set_wake_parent()
instead of always returning success.
Fixes: e35a6ae0eb3a ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1601267524-20199-3-git-send-email-mkshah@codeaurora.org
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Both IRQCHIP_SET_TYPE_MASKED and IRQCHIP_MASK_ON_SUSPEND flags are already
set for msmgpio's parent PDC irqchip but GPIO interrupts do not get masked
during suspend or during setting irq type since genirq checks irqchip flag
of msmgpio irqchip which forwards these calls to its parent PDC irqchip.
Add irqchip specific flags for msmgpio irqchip to mask non wakeirqs during
suspend and mask before setting irq type. Masking before changing type make
sures any spurious interrupt is not detected during this operation.
Fixes: e35a6ae0eb3a ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1601267524-20199-2-git-send-email-mkshah@codeaurora.org
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The debug output in pcs_parse_one_pinctrl_entry() needs to be updated
to print the correct pinctrl register value when #pinctrl-cells is 2.
Fixes: a13395418888 ("pinctrl: single: parse #pinctrl-cells = 2")
Reported-by: Trent Piepho <tpiepho@gmail.com>
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/linux-omap/3139716.CMS8C0sQ7x@zen.local/
Link: https://lore.kernel.org/r/20200913230306.2061645-1-drew@beagleboard.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The property #pinctrl-cells can either be 1 or 2:
- if #pinctrl-cells = <1>, then pinctrl_spec.args_count = 2
- if #pinctrl-cells = <2>, then pinctrl_spec.args_count = 3
All other values of pinctrl_spec.args_count are incorrect. This fix
checks the upper bound instead of just the lower bound.
Fixes: a13395418888 ("pinctrl: single: parse #pinctrl-cells = 2")
Reported-by: Trent Piepho <tpiepho@gmail.com>
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/linux-omap/3139716.CMS8C0sQ7x@zen.local/
Link: https://lore.kernel.org/r/20200930174839.1308344-1-drew@beagleboard.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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check mtk_is_virt_gpio input parameter,
virtual gpio need to support eint mode.
add error handler for the ko case
to fix this boot fail:
pc : mtk_is_virt_gpio+0x20/0x38 [pinctrl_mtk_common_v2]
lr : mtk_gpio_get_direction+0x44/0xb0 [pinctrl_paris]
Fixes: edd546465002 ("pinctrl: mediatek: avoid virtual gpio trying to set reg")
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Singed-off-by: Jie Yang <sin_jieyang@mediatek.com>
Link: https://lore.kernel.org/r/1597922546-29633-1-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Correct sdc2_clk pin definition (register offset is wrong, verified by
the msm-4.19 driver).
Fixes: 4e3ec9e407ad ("pinctrl: qcom: Add sm8250 pinctrl driver.")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200914091846.55204-1-dmitry.baryshkov@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Modify COMMUNITY macros to be consistent with Tiger Lake and others.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20200929110306.40852-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Modify COMMUNITY macros to be consistent with Tiger Lake and others.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20200929110306.40852-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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It appears that almost traditionally the H variants have some deviations
in the register offsets in comparison to LP ones. This is the case for
Intel Tiger Lake as well. Fix register offsets for TGL-H variant.
Fixes: 653d96455e1e ("pinctrl: tigerlake: Add support for Tiger Lake-H")
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20200929110306.40852-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.
Signed-off-by: Wang Xiaojun <wangxiaojun11@huawei.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20200917064151.2184010-1-wangxiaojun11@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The only usage of these structs is to assign their address to various
ops fields in the pinctrl_desc struct, which are const pointers. Make
them const to allow the compiler to put them in read-only memory.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200926202342.31014-1-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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These pins are named ANTSEL[0~29] in datasheet and are used by wmac for
various functions.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Link: https://lore.kernel.org/r/20200922164159.120920-1-gch981213@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20200921131057.92895-1-miaoqinglang@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add support for sama7g5 pinctrl block, which has 5 PIO banks.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Link: https://lore.kernel.org/r/20200917131257.273882-2-eugen.hristev@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Simplify the return expression.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20200921131058.92941-1-miaoqinglang@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Simplify the return expression.
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20200921082448.2591929-1-liushixin2@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When PINCTRL_BCM2835 is enabled and GPIOLIB is disabled, it results in the
following Kbuild warning:
WARNING: unmet direct dependencies detected for GPIOLIB_IRQCHIP
Depends on [n]: GPIOLIB [=n]
Selected by [y]:
- PINCTRL_BCM2835 [=y] && PINCTRL [=y] && OF [=y] && (ARCH_BCM2835 [=n] || ARCH_BRCMSTB [=n] || COMPILE_TEST [=y])
The reason is that PINCTRL_BCM2835 selects GPIOLIB_IRQCHIP without
depending on or selecting GPIOLIB while GPIOLIB_IRQCHIP is subordinate to
GPIOLIB.
Honor the kconfig menu hierarchy to remove kconfig dependency warnings.
Fixes: 85ae9e512f43 ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP")
Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Link: https://lore.kernel.org/r/20200914144025.371370-1-fazilyildiran@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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module_platform_driver() makes the code simpler by eliminating
boilerplate code.
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
Link: https://lore.kernel.org/r/20200914065402.3726408-1-liushixin2@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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1.Add I2S pins support for the JZ4780 SoC.
2.Add I2S pins support for the X1000 SoC.
3.Add I2S pins support for the X1500 SoC.
4.Add I2S pins support for the X1830 SoC.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200913065836.12156-4-zhouyanjie@wanyeetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Correct the pullup and pulldown parameters of JZ4780 to make them
consistent with the parameters on the datasheet.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200913065836.12156-3-zhouyanjie@wanyeetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add SSI pins support for the JZ4770 SoC and the
JZ4780 SoC from Ingenic.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200913065836.12156-2-zhouyanjie@wanyeetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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These were skipped in the original patches adding pinconf support for
the AST2600.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Cc: Johnny Huang <johnny_huang@aspeedtech.com>
Link: https://lore.kernel.org/r/20200910025631.2996342-4-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The Aspeed pinconf data structures are split into 'conf' and 'map'
types, where the 'conf' struct defines which register and bitfield to
manipulate, while the 'map' struct defines what value to write to
the register and bitfield.
Both structs have a mask member, and the wrong mask was being used to
tell the regmap which bits to update.
A todo is to look at whether we can remove the mask from the 'map'
struct.
Fixes: 5f52c853847f ("pinctrl: aspeed: Use masks to describe pinconf bitfields")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Cc: Johnny Huang <johnny_huang@aspeedtech.com>
Link: https://lore.kernel.org/r/20200910025631.2996342-3-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When displaying which pinconf register and field is being touched,
format the field mask so that it's consistent with the way the pinmux
portion formats the mask.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20200910025631.2996342-2-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Change PINCTRL_IMX to tristate to support loadable module build.
And i.MX common pinctrl driver should depend on CONFIG_OF to make sure
no build error when i.MX common pinctrl driver is enabled for different
architectures without CONFIG_OF.
Also add module author, description and license.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1599552721-24872-3-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Change PINCTR_IMX_SCU to tristate, add module author, description
and license to support building SCU pinctrl core driver as module.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1599552721-24872-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Use function callbacks for SCU related functions in pinctrl-imx.c
in order to support the scenario of PINCTRL_IMX is built in while
PINCTRL_IMX_SCU is built as module, all drivers using SCU pinctrl
driver need to initialize the SCU related function callback, and
no need to check CONFIG_PINCTRL_IMX_SCU anymore, hence stub functions
also can be removed.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1599552721-24872-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This commit adds the pinctrl driver for the MediaTek's MT8167 SoC.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20200907110221.1691168-2-fparent@baylibre.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v5.10-1
* Add last part of cleanup Cherryview driver to align with other drivers
* Due to above clean up Cherryview and Baytrail drivers to use common API
The following is an automated git shortlog grouped by driver:
baytrail:
- Switch to use intel_pinctrl_get_soc_data()
cherryview:
- Preserve CHV_PADCTRL1_INVRXTX_TXDATA flag on GPIOs
- Switch to use intel_pinctrl_get_soc_data()
- Utilize temporary variable to hold device pointer
- Switch to use struct intel_pinctrl
- Move custom community members to separate data struct
- Drop stale comment
intel:
- Update header block to reflect direct dependencies
- Extract intel_pinctrl_get_soc_data() helper for wider use
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel
pinctrl: renesas: Updates for v5.10
- Add CAN and USB1 PWEN pin groups on R-Car H2 and RZ/G1,
- Three more conversion of DT bindings to json-schema,
- Group all Renesas pinctrl drivers and improve visual Kconfig
structure,
- Rename drivers/pinctrl/sh-pfc to drivers/pinctrl/renesas,
- Minor fixes and improvements.
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One some devices the GPIO should output the inverted value from what
device-drivers / ACPI code expects. The reason for this is unknown,
perhaps these systems use an external buffer chip on the GPIO which
inverts the signal. The BIOS makes this work by setting the
CHV_PADCTRL1_INVRXTX_TXDATA flag.
Before this commit we would unconditionally clear all INVRXTX flags,
including the CHV_PADCTRL1_INVRXTX_TXDATA flag when a GPIO is requested
by a driver (from chv_gpio_request_enable()).
This breaks systems using this setup. Specifically it is causing
problems for systems with a goodix touchscreen, where the BIOS sets the
INVRXTX_TXDATA flag on the GPIO used for the touchscreen's reset pin.
The goodix touchscreen driver by defaults configures this pin as input
(relying on the pull-up to keep it high), but the clearing of the
INVRXTX_TXDATA flag done by chv_gpio_request_enable() causes it to be
driven low for a brief time before the GPIO gets set to input mode.
This causes the touchscreen controller to get reset. On most CHT devs
with this touchscreen this leads to:
[ 31.596534] Goodix-TS i2c-GDIX1001:00: i2c test failed attempt 1: -121
The driver retries this though and then everything is fine. But during
reset the touchscreen uses its interrupt pin as bootstrap to determine
which i2c address to use and on the Acer One S1003 the spurious reset
caused by the clearing of the INVRXTX_TXDATA flag causes the controller
to come back up again on the wrong i2c address, breaking things.
This commit fixes both the -121 errors, as well as the total breakage
on the Acer One S1003, by making chv_gpio_clear_triggering() not clear
the INVRXTX_TXDATA flag if the pin is already configured as a GPIO.
Note that chv_pinmux_set_mux() does still unconditionally clear the
flag, so this only affects GPIO usage.
Fixes: a7d4b171660c ("Input: goodix - add support for getting IRQ + reset GPIOs on Cherry Trail devices")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Most, but not all, Renesas pin control drivers use the "sh-pfc" pin
control framework. As of commit 8449bfa9e6a9f7ec ("pinctrl: sh-pfc:
Collect Renesas related CONFIGs in one place"), the code for this
framework is always built when Renesas SoC pin control support is
enabled, regardless of whether the enabled pin control drivers need it
or not.
Fix this by reintroducing the CONFIG_SH_PFC symbol to control inclusion
of the "sh-pfc" framework and its dependencies, and selecting it when
needed.
This reduces kernel size of a typical RZ/A1 or RZ/A2 kernel by more than
6 resp. 11 KiB.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-4-geert+renesas@glider.be
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The drivers/pinctrl/sh-pfc subdirectory was originally created to group
pin control drivers for various Renesas SuperH and SH-Mobile platforms.
However, the name "sh-pfc" no longer reflects its contents, as the
directory now contains pin control drivers for Renesas SuperH, ARM32,
and ARM64 SoCs.
Hence rename the subdirectory from drivers/pinctrl/sh-pfc to
drivers/pinctrl/renesas, and the related Kconfig symbol from
PINCTRL_SH_PFC to PINCTRL_RENESAS.
Rename the git branch in MAINTAINERS, too, for consistency.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-3-geert+renesas@glider.be
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The RZ/N1 pin control driver does not use pin groups or pin functions,
so there is no need to select GENERIC_PINCTRL_GROUPS or
GENERIC_PINMUX_FUNCTIONS.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-2-geert+renesas@glider.be
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For pins requiring software driven IO output operations, the RZ/A1 Pin
Controller uses either the "output-high" or "output-low" DT property to
enable the corresponding output buffer. The actual line value doesn't
matter, as it is ignored.
Commit 425562429d4f3b13 ("pinctrl: generic: Add output-enable property")
introduced a new DT property for this specific use case.
Update the RZ/A1 Pin Controller DT bindings and driver to use this new
property instead. Preserve backwards compatibility with old DTBs in the
driver, as this comes at a very small cost.
Notes:
- The DT binding examples already used the new property,
- There are no upstream users of the old properties.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200821111401.4021-1-geert+renesas@glider.be
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Sort each driver by description title in alphabetical order.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h7ssy4qy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Now, Renesas Pin Control drivers are under menu, but current
descriptions are not aligned.
This patch aligns them.
- RZ/A2 gpio and pinctrl driver
- RZ/N1 pinctrl driver
- Emma Mobile EV2 pin control support
- R-Mobile APE6 pin control support
- R-Mobile A1 pin control support
- RZ/G1H pin control support
- RZ/G1M pin control support
+ pin control support for RZ/A2
+ pin control support for RZ/N1
+ pin control support for Emma Mobile EV2
+ pin control support for R-Mobile APE6
+ pin control support for R-Mobile A1
+ pin control support for RZ/G1H
+ pin control support for RZ/G1M
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87imd8y4r2.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Renesas related pinctrl CONFIGs are located in many places, which is
confusing.
This patch collects them into the same place, grouped in a new "Renesas
pinctrl drivers" menu.
This patch also moves pinctrl-rz{a1,a2,n1}.c into the sh-pfc folder.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87k0xoy4r7.wl-kuninori.morimoto.gx@renesas.com
[geert: Update path in MAINTAINERS]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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It is "Emma Mobile EV2" not "AV2".
This patch tidies it up.
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87lfi4y4re.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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driver_deferred_probe_check_state() may return -ETIMEDOUT instead of
-EPROBE_DEFER after all built-in drivers have been probed. This can
cause issues for built-in drivers that depend on resources provided by
loadable modules.
One such case happens on Tegra where I2C controllers are used during
early boot to set up the system PMIC, so the I2C driver needs to be a
built-in driver. At the same time, some instances of the I2C controller
depend on the DPAUX hardware for pinmuxing. Since the DPAUX is handled
by the display driver, which is usually not built-in, the pin control
states will not become available until after the root filesystem has
been mounted and the display driver loaded from it.
Fixes: bec6c0ecb243 ("pinctrl: Remove use of driver_deferred_probe_check_state_continue()")
Suggested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200825143348.1358679-1-thierry.reding@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Per the datasheet the i2c functions use MPP_Sel=0x1. They are documented
as using MPP_Sel=0x4 as well but mixing 0x1 and 0x4 is clearly wrong. On
the board tested 0x4 resulted in a non-functioning i2c bus so stick with
0x1 which works.
Fixes: d7ae8f8dee7f ("pinctrl: mvebu: pinctrl driver for 98DX3236 SoC")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20200907211712.9697-2-chris.packham@alliedtelesis.co.nz
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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I encountered bug in SX1502 expander driver in 5.7.7. Here is relevant
DTS part:
compatible = "semtech,sx1502q";
gpio4_cfg_pins: gpio2-cfg {
pins = "gpio5";
output-high;
};
And part of OOPS:
[ 0.673996] [<c023cfa6>] (gpiochip_get_data) from [<c023b235>]
(sx150x_gpio_direction_output+0xd)
[ 0.683259] [<c023b235>] (sx150x_gpio_direction_output) from
[<c023b363>] (sx150x_pinconf_set+0x)
[ 0.692796] [<c023b363>] (sx150x_pinconf_set) from [<c0238fef>]
(pinconf_apply_setting+0x39/0x7e)
[ 0.701635] [<c0238fef>] (pinconf_apply_setting) from [<c0236c77>]
(pinctrl_commit_state+0xa5/0x)
[ 0.710648] [<c0236c77>] (pinctrl_commit_state) from [<c0237e03>]
(pinctrl_enable+0xff/0x1d4)
[ 0.719139] [<c0237e03>] (pinctrl_enable) from [<c023b791>]
(sx150x_probe+0x1a3/0x358)
[ 0.727027] [<c023b791>] (sx150x_probe) from [<c02c38bf>]
(i2c_device_probe+0x1bb/0x1dc)
The problem is that sx150x_pinconf_set uses sx150x_gpio_direction_output
but gpio is not setup yet. Patch below fixes it but I'm not sure whether
is it correct.
Link: https://lore.kernel.org/r/f32130bf-cfd4-b1bf-538c-dbc9ee2d947a@eaxlabs.cz
Signed-off-by: Martin DEVERA <devik@eaxlabs.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The Rockchip pinctrl driver needs to handle information from Devicetree
so only makes sense getting compiled on systems with CONFIG_OF enabled.
This also fixes a problem found by the "kernel-test-robot" when compiling
the driver on test-builds that do not have CONFIG_OF enabled:
drivers/pinctrl/pinctrl-rockchip.c: In function 'rockchip_pinctrl_parse_groups':
>> drivers/pinctrl/pinctrl-rockchip.c:2881:9: error: implicit declaration of function 'pinconf_generic_parse_dt_config'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
2881 | ret = pinconf_generic_parse_dt_config(np_config, NULL,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| pinconf_generic_dump_config
drivers/pinctrl/pinctrl-rockchip.c: In function 'rockchip_gpiolib_register':
>> drivers/pinctrl/pinctrl-rockchip.c:3473:5: error: 'struct gpio_chip' has no member named 'of_node'
3473 | gc->of_node = bank->of_node;
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20200905214955.907950-1-heiko@sntech.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This commit introduces support for the pin controller on A100.
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/4e331a2ed4a30c883df6157bc5c52bb686aa8e0d.1595572867.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add pinctrl support to Toshiba Visconti SoCs.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Link: https://lore.kernel.org/r/20200909204336.2558-3-nobuhiro1.iwamatsu@toshiba.co.jp
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The only usage of s900_padinfo[] is to assign it to the padinfo field in
the owl_pinctrl_soc_data 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>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200830224311.36994-4-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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