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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.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] 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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@@ -2662,7 +2664,7 @@ 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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@@ -3361,7 +3363,7 @@ 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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