openwrt/target/linux/bcm27xx/patches-6.6/950-0802-bcm2835-virtgpio-Update-for-Linux-6.6.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

48 lines
1.4 KiB
Diff

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;