mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 01:28:59 +00:00
8c405cdccc
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>
36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
From a7c1456eb3e8f99ed908b2ccce9a4045c2d3c85e Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
|
Date: Thu, 14 Mar 2024 09:55:31 +0000
|
|
Subject: [PATCH 0965/1085] i2c: mux: Add support for generic base-nr property
|
|
|
|
i2c_mux_add_adapter takes a force_nr parameter that allows an explicit
|
|
bus number to be associated with a channel. However, only i2c-mux-reg
|
|
and i2c-mux-gpio make use of it.
|
|
|
|
To help with situations where it is desirable to have a fixed, known
|
|
base address for the channels of a mux, create a "base-nr" property.
|
|
When force_nr is 0 and base-nr is set and non-zero, form a force_nr
|
|
value from the sum of base-nr and the channel ID.
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
|
---
|
|
drivers/i2c/i2c-mux.c | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
--- a/drivers/i2c/i2c-mux.c
|
|
+++ b/drivers/i2c/i2c-mux.c
|
|
@@ -355,8 +355,13 @@ int i2c_mux_add_adapter(struct i2c_mux_c
|
|
if (muxc->dev->of_node) {
|
|
struct device_node *dev_node = muxc->dev->of_node;
|
|
struct device_node *mux_node, *child = NULL;
|
|
+ u32 base_nr = 0;
|
|
u32 reg;
|
|
|
|
+ of_property_read_u32(dev_node, "base-nr", &base_nr);
|
|
+ if (!force_nr)
|
|
+ force_nr = base_nr;
|
|
+
|
|
if (muxc->arbitrator)
|
|
mux_node = of_get_child_by_name(dev_node, "i2c-arb");
|
|
else if (muxc->gate)
|