bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0381-pinctrl-bcm2835-Remove-gpiochip-on-error.patch b/target/linux/bcm27xx/patches-5.4/950-0381-pinctrl-bcm2835-Remove-gpiochip-on-error.patch
new file mode 100644
index 0000000000..31a1a24caf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0381-pinctrl-bcm2835-Remove-gpiochip-on-error.patch
@@ -0,0 +1,25 @@
+From 0cddfafa817a776063ba6f00fb439d9a415235f9 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 6 Jan 2020 16:04:30 +0000
+Subject: [PATCH] pinctrl: bcm2835: Remove gpiochip on error
+
+A failure in gpiochip_irqchip_add leads to a leak of a gpiochip. Fix
+the leak with the use of devm_gpiochip_add_data.
+
+Fixes: 85ae9e512f43 ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP")
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -1135,7 +1135,7 @@ static int bcm2835_pinctrl_probe(struct
+ 		raw_spin_lock_init(&pc->irq_lock[i]);
+ 	}
+ 
+-	err = gpiochip_add_data(&pc->gpio_chip, pc);
++	err = devm_gpiochip_add_data(dev, &pc->gpio_chip, pc);
+ 	if (err) {
+ 		dev_err(dev, "could not add GPIO chip\n");
+ 		return err;