AuxXxilium/linux_dsm_epyc7002
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c3c0c2e18d
linux_dsm_epyc7002/drivers/pinctrl
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Douglas Anderson c3c0c2e18d pinctrl: qcom: Handle broken/missing PDC dual edge IRQs on sc7180 
Depending on how you look at it, you can either say that:
a) There is a PDC hardware issue (with the specific IP rev that exists
   on sc7180) that causes the PDC not to work properly when configured
   to handle dual edges.
b) The dual edge feature of the PDC hardware was only added in later
   HW revisions and thus isn't in all hardware.

Regardless of how you look at it, let's work around the lack of dual
edge support by only ever letting our parent see requests for single
edge interrupts on affected hardware.

NOTE: it's possible that a driver requesting a dual edge interrupt
might get several edges coalesced into a single IRQ.  For instance if
a line starts low and then goes high and low again, the driver that
requested the IRQ is not guaranteed to be called twice.  However, it
is guaranteed that once the driver's interrupt handler starts running
its first instruction that any new edges coming in will cause the
interrupt to fire again.  This is relatively commonplace for dual-edge
gpio interrupts (many gpio controllers require software to emulate
dual edge with single edge) so client drivers should be setup to
handle it.

Fixes: e35a6ae0eb ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200714080254.v3.1.Ie0d730120b232a86a4eac1e2909bcbec844d1766@changeid
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:41:41 +02:00
..
actions pinctrl: actions: fix function group name for i2c0_group 2020-04-16 13:10:05 +02:00
aspeed Linux 5.5-rc3 2019-12-29 00:30:37 +01:00
bcm pinctrl: bcm2835: Add support for wake-up interrupts 2020-06-03 14:16:38 +02:00
berlin pinctrl: berlin: as370: fix a typo s/spififib/spdifib 2019-10-16 14:12:55 +02:00
cirrus pinctrl: madera: Add missing call to pinctrl_unregister_mappings 2020-02-29 00:34:23 +01:00
freescale pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()' 2020-06-03 14:35:41 +02:00
intel pinctrl: intel: Move npins closer to pin_base in struct intel_community 2020-04-22 14:20:00 +03:00
mediatek This is the bulk of pin control changes for the v5.8 2020-06-07 16:13:43 -07:00
meson pinctrl: meson: wire up the gpio_chip's set_config callback 2020-04-28 12:00:46 +02:00
mvebu Revert "pinctrl: mvebu: armada-37xx: use use platform api" 2020-03-26 00:20:38 +01:00
nomadik pinctrl: db8500: Fix some old bugs 2020-04-28 16:33:08 +02:00
nuvoton pinctrl: nuvoton: npcm7xx: constify copied structure 2020-01-07 13:55:55 +01:00
pxa pinctrl: pxa: pxa2xx: Remove 'pxa2xx_pinctrl_exit()' which is unused and broken 2020-06-04 00:05:13 +02:00
qcom pinctrl: qcom: Handle broken/missing PDC dual edge IRQs on sc7180 2020-07-16 15:41:41 +02:00
samsung pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs 2020-04-28 11:38:11 +02:00
sh-pfc pinctrl: sh-pfc: Updates for v5.8 (take two) 2020-05-25 11:19:44 +02:00
sirf pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe() 2020-06-03 14:32:28 +02:00
spear pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
sprd pinctrl: sprd: Fix the incorrect pull-up definition 2020-06-04 00:15:20 +02:00
stm32 This is the bulk of pin control changes for the v5.7 kernel cycle. 2020-04-02 15:47:18 -07:00
sunxi pinctrl: sunxi: handle probe defferal 2020-04-16 10:23:02 +02:00
tegra pinctrl: fix several typos 2020-04-28 13:26:49 +02:00
ti pinctl: ti: iodelay: fix error checking on pinctrl_count_index_with_args call 2019-10-04 23:08:47 +02:00
uniphier pinctrl: uniphier: Replace zero-length array with flexible-array member 2020-02-21 15:36:24 +01:00
vt8500 pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
zte pinctrl: fix several typos 2020-04-28 13:26:49 +02:00
core.c This is the bulk of pin control changes for the v5.7 kernel cycle. 2020-04-02 15:47:18 -07:00
core.h pinctrl: Allow modules to use pinctrl_[un]register_mappings 2019-12-30 14:27:17 +01:00
devicetree.c This is the bulk of GPIO development for the v5.7 kernel cycle. 2020-04-04 10:27:00 -07:00
devicetree.h pinctrl: devicetree.c: remove orphan pinctrl_dt_has_hogs() 2019-10-04 23:26:23 +02:00
Kconfig pinctrl: at91-pio4: Add COMPILE_TEST support 2020-05-25 13:40:48 +02:00
Makefile pinctrl: mcp23s08: Split to three parts: core, I²C, SPI 2020-04-16 14:21:23 +02:00
pinconf-generic.c pinctrl: Export some needed symbols at module load time 2020-02-29 00:25:01 +01:00
pinconf.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pinconf.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
pinctrl-amd.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-amd.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
pinctrl-artpec6.c pinctrl: artpec6: fix __iomem on reg in set 2020-01-07 13:57:17 +01:00
pinctrl-as3722.c pinctrl: Include <linux/gpio/driver.h> nothing else 2018-09-14 15:10:57 +02:00
pinctrl-at91-pio4.c pinctrl: Fix return value about devm_platform_ioremap_resource() 2020-05-25 13:40:47 +02:00
pinctrl-at91.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-at91.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pinctrl-axp209.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-bm1880.c pinctrl: bm1880: add pwm37 to bm1880_pctrl_groups 2020-04-28 16:28:37 +02:00
pinctrl-coh901.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-coh901.h
pinctrl-da850-pupd.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-da9062.c pinctrl: da9062: Fix error gpiolib.h path 2020-02-28 14:15:53 +01:00
pinctrl-digicolor.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-equilibrium.c pinctrl: Fix warning by adding missing MODULE_LICENSE 2019-11-28 09:12:43 +01:00
pinctrl-equilibrium.h pinctrl: Add pinmux & GPIO controller driver for a new SoC 2019-11-21 14:47:44 +01:00
pinctrl-falcon.c pinctrl: falcon: fix syntax error 2020-03-09 13:52:37 +01:00
pinctrl-gemini.c pinctrl: gemini: Fix up TVC clock group 2018-10-10 21:05:35 +02:00
pinctrl-ingenic.c pinctrl: ingenic: Add irq_{request,release}_resources callbacks 2020-05-12 15:05:02 +02:00
pinctrl-lantiq.c pinctrl: fix several typos 2020-04-28 13:26:49 +02:00
pinctrl-lantiq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 332 2019-06-05 17:37:06 +02:00
pinctrl-lpc18xx.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-max77620.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
pinctrl-mcp23s08_i2c.c pinctrl: mcp23s08: Split to three parts: core, I²C, SPI 2020-04-16 14:21:23 +02:00
pinctrl-mcp23s08_spi.c pinctrl: mcp23s08: Split to three parts: core, I²C, SPI 2020-04-16 14:21:23 +02:00
pinctrl-mcp23s08.c pinctrl: mcp23s08: add module license 2020-04-17 12:24:59 +02:00
pinctrl-mcp23s08.h pinctrl: mcp23s08: Split to three parts: core, I²C, SPI 2020-04-16 14:21:23 +02:00
pinctrl-ocelot.c pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2 2020-05-18 09:31:27 +02:00
pinctrl-oxnas.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-palmas.c
pinctrl-pic32.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-pic32.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 2019-06-05 17:37:18 +02:00
pinctrl-pistachio.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-rk805.c pinctrl: rk805: Constify rk805_gpio_cfgs 2020-05-12 13:35:33 +02:00
pinctrl-rockchip.c pinctrl: rockchip: fix memleak in rockchip_dt_node_to_map 2020-05-12 19:45:33 +02:00
pinctrl-rza1.c pinctrl: rza1: Fix flag name in comment 2020-05-15 10:47:06 +02:00
pinctrl-rza2.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-rzn1.c pinctrl: rzn1: Make array reg_drive static, makes object smaller 2019-10-14 12:11:12 +02:00
pinctrl-single.c pinctrl: Convert to using %pOFn instead of device_node.name 2018-08-29 14:05:36 +02:00
pinctrl-st.c pinctrl: Use new GPIO_LINE_DIRECTION 2020-02-21 15:19:42 +01:00
pinctrl-stmfx.c pinctrl: stmfx: stmfx_pinconf_set doesn't require to get direction anymore 2020-04-28 14:49:11 +02:00
pinctrl-sx150x.c pinctrl: fix several typos 2020-04-28 13:26:49 +02:00
pinctrl-tb10x.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-u300.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-utils.c
pinctrl-utils.h
pinctrl-xway.c pinctrl: use devm_platform_ioremap_resource() to simplify code 2019-11-05 15:33:40 +01:00
pinctrl-zynq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
pinmux.c pinctrl: pinmux: fix a possible null pointer in pinmux_can_be_used_for_gpio 2019-12-13 10:57:23 +01:00
pinmux.h pinctrl/gpio: Take MUX usage into account 2019-08-23 11:09:41 +02:00