diff options
Diffstat (limited to 'bcm2835-pinctrl-Avoid-warning-from-__irq_do_set_handler.patch')
| -rw-r--r-- | bcm2835-pinctrl-Avoid-warning-from-__irq_do_set_handler.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/bcm2835-pinctrl-Avoid-warning-from-__irq_do_set_handler.patch b/bcm2835-pinctrl-Avoid-warning-from-__irq_do_set_handler.patch deleted file mode 100644 index 258d3b210..000000000 --- a/bcm2835-pinctrl-Avoid-warning-from-__irq_do_set_handler.patch +++ /dev/null @@ -1,70 +0,0 @@ -From patchwork Wed Jun 21 18:20:04 2017 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -Subject: pinctrl: bcm2835: Avoid warning from __irq_do_set_handler -From: Stefan Wahren <stefan.wahren@i2se.com> -X-Patchwork-Id: 9802555 -Message-Id: <1498069204-28154-1-git-send-email-stefan.wahren@i2se.com> -To: Linus Walleij <linus.walleij@linaro.org>, Eric Anholt <eric@anholt.net> -Cc: Stefan Wahren <stefan.wahren@i2se.com>, linux-gpio@vger.kernel.org, - Phil Elwell <phil@raspberrypi.org>, linux-rpi-kernel@lists.infradead.org, - linux-arm-kernel@lists.infradead.org -Date: Wed, 21 Jun 2017 20:20:04 +0200 - -We get a warning during boot with enabled EARLY_PRINTK that -we try to set a irq_chip without data. This is caused by ignoring -the return value of irq_of_parse_and_map(). So avoid calling -gpiochip_set_chained_irqchip() in error case. - -Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> -Fixes: 85ae9e512f43 ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP") ---- - drivers/pinctrl/bcm/pinctrl-bcm2835.c | 4 ++++ - 1 file changed, 4 insertions(+) - -diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c -index 1eb7a1a..2308831 100644 ---- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c -+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c -@@ -1048,6 +1048,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev) - for (i = 0; i < BCM2835_NUM_IRQS; i++) { - pc->irq[i] = irq_of_parse_and_map(np, i); - pc->irq_group[i] = i; -+ -+ if (pc->irq[i] == 0) -+ continue; -+ - /* - * Use the same handler for all groups: this is necessary - * since we use one gpiochip to cover all lines - the -From 8aa99fe688734f249b07314cdd7c5e25651c9c6d Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Thu, 27 Oct 2016 16:21:19 +0100 -Subject: irq-bcm2836: Prevent spurious interrupts, and trap them early - -The old arch-specific IRQ macros included a dsb to ensure the -write to clear the mailbox interrupt completed before returning -from the interrupt. The BCM2836 irqchip driver needs the same -precaution to avoid spurious interrupts. - -Signed-off-by: Phil Elwell <phil@raspberrypi.org> ---- - drivers/irqchip/irq-bcm2836.c | 1 + - 1 file changed, 1 insertion(+) - -diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c -index e7463e3..a8db33b 100644 ---- a/drivers/irqchip/irq-bcm2836.c -+++ b/drivers/irqchip/irq-bcm2836.c -@@ -175,6 +175,7 @@ __exception_irq_entry bcm2836_arm_irqchip_handle_irq(struct pt_regs *regs) - u32 ipi = ffs(mbox_val) - 1; - - writel(1 << ipi, mailbox0); -+ dsb(sy); - handle_IPI(ipi, regs); - #endif - } else if (stat) { --- -cgit v0.12 - |