From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
linux-gpio@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Jamie McClymont <jamie@kwiius.com>,
Hans de Goede <hdegoede@redhat.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: [PATCH v6 06/18] gpiolib: acpi: Respect bias settings for GpioInt() resource
Date: Thu, 12 Nov 2020 00:05:47 +0200 [thread overview]
Message-ID: <20201111220559.39680-7-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20201111220559.39680-1-andriy.shevchenko@linux.intel.com>
In some cases the GpioInt() resource is coming with bias settings
which may affect system functioning. Respect bias settings for
GpioInt() resource by calling acpi_gpio_update_gpiod_*flags() API
in acpi_dev_gpio_irq_get().
Reported-by: Jamie McClymont <jamie@kwiius.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
drivers/gpio/gpiolib-acpi.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 834a12f3219e..3a39e8a93226 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -942,6 +942,7 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
if (info.gpioint && idx++ == index) {
unsigned long lflags = GPIO_LOOKUP_FLAGS_DEFAULT;
+ enum gpiod_flags dflags = GPIOD_ASIS;
char label[32];
int irq;
@@ -952,8 +953,11 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
if (irq < 0)
return irq;
+ acpi_gpio_update_gpiod_flags(&dflags, &info);
+ acpi_gpio_update_gpiod_lookup_flags(&lflags, &info);
+
snprintf(label, sizeof(label), "GpioInt() %d", index);
- ret = gpiod_configure_flags(desc, label, lflags, info.flags);
+ ret = gpiod_configure_flags(desc, label, lflags, dflags);
if (ret < 0)
return ret;
--
2.28.0
next prev parent reply other threads:[~2020-11-11 22:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 22:05 [PATCH v6 00/18] gpiolib: acpi: pin configuration fixes Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 01/18] gpiolib: use proper API to pack pin configuration parameters Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 02/18] gpiolib: Extract gpio_set_config_with_argument() for future use Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 03/18] gpiolib: move bias related code from gpio_set_config() to gpio_set_bias() Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 04/18] gpiolib: Extract gpio_set_config_with_argument_optional() helper Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 05/18] gpiolib: Introduce gpio_set_debounce_timeout() for internal use Andy Shevchenko
2020-11-11 22:05 ` Andy Shevchenko [this message]
2020-11-11 22:05 ` [PATCH v6 07/18] gpiolib: acpi: Use named item for enum gpiod_flags variable Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 08/18] gpiolib: acpi: Take into account debounce settings Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 09/18] gpiolib: acpi: Move non-critical code outside of critical section Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 10/18] gpiolib: acpi: Move acpi_gpio_to_gpiod_flags() upper in the code Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 11/18] gpiolib: acpi: Set initial value for output pin based on bias and polarity Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 12/18] gpiolib: acpi: Make acpi_gpio_to_gpiod_flags() usable for GpioInt() Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 13/18] gpiolib: acpi: Extract acpi_request_own_gpiod() helper Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 14/18] gpiolib: acpi: Convert pin_index to be u16 Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 15/18] gpiolib: acpi: Use BIT() macro to increase readability Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 16/18] gpiolib: acpi: Make Intel GPIO tree official for GPIO ACPI work Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 17/18] sh: Drop ARCH_NR_GPIOS definition Andy Shevchenko
2020-11-11 22:11 ` Andy Shevchenko
2020-11-11 22:05 ` [PATCH v6 18/18] ARM: " Andy Shevchenko
2020-11-11 22:10 ` Andy Shevchenko
2020-11-11 22:09 ` [PATCH v6 00/18] gpiolib: acpi: pin configuration fixes Andy Shevchenko
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