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authorThomas Gleixner <tglx@linutronix.de>2017-06-29 23:33:35 +0200
committerLinus Walleij <linus.walleij@linaro.org>2017-06-30 15:51:42 +0200
commit3fa53ec2ed885b0aec3f0472e3b4a8a6f1cd748c (patch)
tree2ea166c1c43fdae1ddaa1db5920bbf1acf996919 /drivers/pinctrl
parent09dc048d13165dff74ab4050454f9c2d715895d5 (diff)
pinctrl: samsung: Remove bogus irq_[un]mask from resource management
The irq chip callbacks irq_request/release_resources() have absolutely no business with masking and unmasking the irq. The core code unmasks the interrupt after complete setup and masks it before invoking irq_release_resources(). The unmask is actually harmful as it happens before the interrupt is completely initialized in __setup_irq(). Remove it. Fixes: f6a8249f9e55 ("pinctrl: exynos: Lock GPIOs as interrupts when used as EINTs") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Kukjin Kim <kgene@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-gpio@vger.kernel.org Acked-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 96068b40d32a..731530a9ce38 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -181,8 +181,6 @@ static int exynos_irq_request_resources(struct irq_data *irqd)
spin_unlock_irqrestore(&bank->slock, flags);
- exynos_irq_unmask(irqd);
-
return 0;
}
@@ -202,8 +200,6 @@ static void exynos_irq_release_resources(struct irq_data *irqd)
shift = irqd->hwirq * bank_type->fld_width[PINCFG_TYPE_FUNC];
mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
- exynos_irq_mask(irqd);
-
spin_lock_irqsave(&bank->slock, flags);
con = readl(bank->eint_base + reg_con);