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| author | Emanuele Ghidoli <emanuele.ghidoli@toradex.com> | 2024-08-28 15:32:07 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-09-30 13:52:50 +0200 |
| commit | 3360d41f4ac490282fddc3ccc0b58679aa5c065d (patch) | |
| tree | 946c784c26cb1561b31ff091839bfdb6a66bd20e /drivers/gpio | |
| parent | 9852d85ec9d492ebef56dc5f229416c925758edc (diff) | |
| download | linux-stable-3360d41f4ac490282fddc3ccc0b58679aa5c065d.tar.gz linux-stable-3360d41f4ac490282fddc3ccc0b58679aa5c065d.tar.bz2 linux-stable-3360d41f4ac490282fddc3ccc0b58679aa5c065d.zip | |
gpio: davinci: fix lazy disable
On a few platforms such as TI's AM69 device, disable_irq() fails to keep
track of the interrupts that happen between disable_irq() and
enable_irq() and those interrupts are missed. Use the ->irq_unmask() and
->irq_mask() methods instead of ->irq_enable() and ->irq_disable() to
correctly keep track of edges when disable_irq is called.
This solves the issue of disable_irq() not working as expected on such
platforms.
Fixes: 23265442b02b ("ARM: davinci: irq_data conversion.")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Parth Pancholi <parth.pancholi@toradex.com>
Acked-by: Keerthy <j-keerthy@ti.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240828133207.493961-1-parth105105@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-davinci.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index b54fef6b1e12..790595f3b949 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -253,7 +253,7 @@ static int davinci_gpio_probe(struct platform_device *pdev) * serve as EDMA event triggers. */ -static void gpio_irq_disable(struct irq_data *d) +static void gpio_irq_mask(struct irq_data *d) { struct davinci_gpio_regs __iomem *g = irq2regs(d); uintptr_t mask = (uintptr_t)irq_data_get_irq_handler_data(d); @@ -262,7 +262,7 @@ static void gpio_irq_disable(struct irq_data *d) writel_relaxed(mask, &g->clr_rising); } -static void gpio_irq_enable(struct irq_data *d) +static void gpio_irq_unmask(struct irq_data *d) { struct davinci_gpio_regs __iomem *g = irq2regs(d); uintptr_t mask = (uintptr_t)irq_data_get_irq_handler_data(d); @@ -288,8 +288,8 @@ static int gpio_irq_type(struct irq_data *d, unsigned trigger) static struct irq_chip gpio_irqchip = { .name = "GPIO", - .irq_enable = gpio_irq_enable, - .irq_disable = gpio_irq_disable, + .irq_unmask = gpio_irq_unmask, + .irq_mask = gpio_irq_mask, .irq_set_type = gpio_irq_type, .flags = IRQCHIP_SET_TYPE_MASKED | IRQCHIP_SKIP_SET_WAKE, }; |