Commit 155407bb authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Greg Kroah-Hartman

pinctrl: samsung: Remove bogus irq_[un]mask from resource management

commit 3fa53ec2 upstream.

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: f6a8249f ("pinctrl: exynos: Lock GPIOs as interrupts when used as EINTs")
Signed-off-by: default avatarThomas 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: default avatarTomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 21d22dff
......@@ -205,8 +205,6 @@ static int exynos_irq_request_resources(struct irq_data *irqd)
spin_unlock_irqrestore(&bank->slock, flags);
exynos_irq_unmask(irqd);
return 0;
}
......@@ -226,8 +224,6 @@ 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);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment