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e29500eb84
Refreshed all patches. Altered patches: - 080-sata_support.patch Remove upstreamed: - 034-v4.20-MIPS-BCM47XX-Enable-USB-power-on-Netgear-WNDR3400v3.patch - 001-4.21-01-BCM63XX-fix-switch-core-reset-on-BCM6368.patch - 073-qcom-ipq4019-fix-cpu0-s-qcom-saw2-reg-value.patch Compile-tested on: cns3xxx Runtime-tested on: cns3xxx Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
47 lines
1.5 KiB
Diff
47 lines
1.5 KiB
Diff
From 1929780cf2cc997f990085bd878112b28f4175c9 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Tue, 24 Apr 2018 14:42:27 +0100
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Subject: [PATCH 129/806] gpiolib: Don't prevent IRQ usage of output GPIOs
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Upstream Linux deems using output GPIOs to generate IRQs as a bogus
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use case, even though the BCM2835 GPIO controller is capable of doing
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so. A number of users would like to make use of this facility, so
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disable the checks.
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See: https://github.com/raspberrypi/linux/issues/2527
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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drivers/gpio/gpiolib.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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--- a/drivers/gpio/gpiolib.c
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+++ b/drivers/gpio/gpiolib.c
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@@ -53,6 +53,8 @@
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#define extra_checks 0
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#endif
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+#define dont_test_bit(b,d) (0)
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+
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/* Device and char device-related information */
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static DEFINE_IDA(gpio_ida);
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static dev_t gpio_devt;
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@@ -2654,7 +2656,7 @@ int gpiod_direction_output(struct gpio_d
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value = !!value;
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/* GPIOs used for IRQs shall not be set as output */
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- if (test_bit(FLAG_USED_AS_IRQ, &desc->flags)) {
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+ if (dont_test_bit(FLAG_USED_AS_IRQ, &desc->flags)) {
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gpiod_err(desc,
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"%s: tried to set a GPIO tied to an IRQ as output\n",
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__func__);
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@@ -3353,7 +3355,7 @@ int gpiochip_lock_as_irq(struct gpio_chi
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}
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}
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- if (test_bit(FLAG_IS_OUT, &desc->flags)) {
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+ if (dont_test_bit(FLAG_IS_OUT, &desc->flags)) {
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chip_err(chip,
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"%s: tried to flag a GPIO set as output for IRQ\n",
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__func__);
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