Initial commit

target/linux/bcm27xx/patches-6.6/950-0802-bcm2835-virtgpio-Update-for-Linux-6.6.patch

@@ -0,0 +1,47 @@
+From bf6e52b5a3e670ee683bed778be657b98e0c83af Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 21 Dec 2023 15:13:37 +0000
+Subject: [PATCH 0802/1085] bcm2835-virtgpio: Update for Linux 6.6
+
+The gpio subsystem is happier if the gpiochip is given a parent, and
+if it doesn't have a fixed base gpio number. While we're in here,
+use the fact that the firmware node is the parent to locate it,
+and use the devm_ version of rpi_firmware_get.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/gpio/gpio-bcm-virt.c | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpio/gpio-bcm-virt.c
++++ b/drivers/gpio/gpio-bcm-virt.c
+@@ -85,13 +85,14 @@ static int brcmvirt_gpio_probe(struct pl
+ 	struct brcmvirt_gpio *ucb;
+ 	u32 gpiovirtbuf;
+ 
+-	fw_node = of_parse_phandle(np, "firmware", 0);
++	fw_node = of_get_parent(np);
+ 	if (!fw_node) {
+ 		dev_err(dev, "Missing firmware node\n");
+ 		return -ENOENT;
+ 	}
+ 
+-	fw = rpi_firmware_get(fw_node);
++	fw = devm_rpi_firmware_get(&pdev->dev, fw_node);
++	of_node_put(fw_node);
+ 	if (!fw)
+ 		return -EPROBE_DEFER;
+ 
+@@ -145,10 +146,10 @@ static int brcmvirt_gpio_probe(struct pl
+ 		}
+ 		ucb->bus_addr = 0;
+ 	}
++	ucb->gc.parent = dev;
+ 	ucb->gc.label = MODULE_NAME;
+ 	ucb->gc.owner = THIS_MODULE;
+-	//ucb->gc.dev = dev;
+-	ucb->gc.base = 100;
++	ucb->gc.base = -1;
+ 	ucb->gc.ngpio = NUM_GPIO;
+ 
+ 	ucb->gc.direction_input = brcmvirt_gpio_dir_in;