1 From d562b2187263b40aacc1a50d3f25db2cf28696d6 Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.org>
3 Date: Tue, 9 Jul 2019 10:32:40 +0100
4 Subject: [PATCH 697/806] overlays: i2c-gpio: Fix the "bus" parameter
6 The "bus" parameter has two functions - providing unique names for
7 multiple instances of the overlay, and allowing the number of the bus
8 (i.e. "i2c-<bus>") to be specified. The second function hasn't worked
9 as intended because the overlay doesn't include a "reg" property and
10 the firmware intentionally won't create a "reg" property if one doesn't
13 Allow the bus numbering scheme to work as intended by providing a "reg"
14 with a default value that means "the next available one".
16 See: https://github.com/raspberrypi/linux/issues/3062
18 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
20 arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 2 ++
21 1 file changed, 2 insertions(+)
23 --- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
24 +++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
33 compatible = "i2c-gpio";
34 gpios = <&gpio 23 0 /* sda */