diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2021-06-02 14:04:42 +0300 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2021-11-05 17:40:06 +0300 |
| commit | 6854a10526f88ad79c7a648697ec656af1d5da1a (patch) | |
| tree | aa918828de67f2842b76ea8d65936305532048c3 | |
| parent | b147a055680ad1721f2ff1ce0b292e65f921ee2a (diff) | |
| download | linux-6854a10526f88ad79c7a648697ec656af1d5da1a.tar.xz | |
mfd: sec-irq: Do not enforce (incorrect) interrupt trigger type
Interrupt line can be configured on different hardware in different way,
even inverted. Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.
The Samsung PMIC drivers are used only on Devicetree boards.
Additionally, the PMIC datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.
Marek Szyprowski reports that together with DTS change (proper level in
DTS) it fixes RTC alarm failure that he observed from time to time on
TM2e board.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210602110445.33536-1-krzysztof.kozlowski@canonical.com
| -rw-r--r-- | drivers/mfd/sec-irq.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c index e473c2fb42d5..f5f59fdc72fe 100644 --- a/drivers/mfd/sec-irq.c +++ b/drivers/mfd/sec-irq.c @@ -479,8 +479,7 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic) } ret = devm_regmap_add_irq_chip(sec_pmic->dev, sec_pmic->regmap_pmic, - sec_pmic->irq, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + sec_pmic->irq, IRQF_ONESHOT, 0, sec_irq_chip, &sec_pmic->irq_data); if (ret != 0) { dev_err(sec_pmic->dev, "Failed to register IRQ chip: %d\n", ret); |