Vladimir Oltean fad55088ad pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid wait context ... [ Upstream commit 4546760619 ] The irqchip->irq_set_type method is called by __irq_set_trigger() under the desc->lock raw spinlock. The armada-37xx implementation, armada_37xx_irq_set_type(), uses an MMIO regmap created by of_syscon_register(), which uses plain spinlocks (the kind that are sleepable on RT). Therefore, this is an invalid locking scheme for which we get a kernel splat stating just that ("[ BUG: Invalid wait context ]"), because the context in which the plain spinlock may sleep is atomic due to the raw spinlock. We need to go raw spinlocks all the way. Make this driver create its own MMIO regmap, with use_raw_spinlock=true, and stop relying on syscon to provide it. This patch depends on commit 67021f25d9 ("regmap: teach regmap to use raw spinlocks if requested in the config"). Cc: <stable@vger.kernel.org> # 5.15+ Fixes: 2f22760539 ("pinctrl: armada-37xx: Add irqchip support") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20220716233745.1704677-3-vladimir.oltean@nxp.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-07-29 17:25:20 +02:00
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Kconfig	pinctrl: Fix Kconfig indentation	2019-11-21 15:06:07 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pinctrl-armada-37xx.c	pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid wait context	2022-07-29 17:25:20 +02:00
pinctrl-armada-38x.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-armada-39x.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-armada-370.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-armada-375.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-armada-ap806.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-armada-cp110.c	pinctrl: armada-cp110 - fix MPP54/MPP55 functions	2021-03-10 14:41:12 +01:00
pinctrl-armada-xp.c	pinctrl: mvebu: Fix i2c sda definition for 98DX3236	2020-09-12 18:14:39 +02:00
pinctrl-dove.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-kirkwood.c	This is the bulk of pin control changes for the v5.3 kernel	2019-07-13 15:02:27 -07:00
pinctrl-mvebu.c	pinctrl: mvebu: use devm_platform_ioremap_resource() to simplify code	2019-10-24 14:04:13 +02:00
pinctrl-mvebu.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pinctrl-orion.c	pinctrl: mvebu: use devm_platform_ioremap_resource() to simplify code	2019-10-24 14:04:13 +02:00