1 From 48bf88ebb1abf55168f636d7a6edf2ca79be13c6 Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.com>
3 Date: Wed, 6 May 2020 14:25:20 +0100
4 Subject: [PATCH] overlays: sc16is752-spi1: Add xtal parameter
6 The other sc16is75x overlays have an xtal parameter to allow a
7 different crystal frequency to be specified, but sc16is752-spi1
8 doesn't. Fix this omission.
10 See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=273234
12 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
14 arch/arm/boot/dts/overlays/README | 1 +
15 arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts | 3 ++-
16 2 files changed, 3 insertions(+), 1 deletion(-)
18 --- a/arch/arm/boot/dts/overlays/README
19 +++ b/arch/arm/boot/dts/overlays/README
20 @@ -2114,6 +2114,7 @@ Info: Overlay for the NXP SC16IS752 Du
22 Load: dtoverlay=sc16is752-spi1,<param>=<val>
23 Params: int_pin GPIO used for IRQ (default 24)
24 + xtal On-board crystal frequency (default 14745600)
28 --- a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
29 +++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
34 - int_pin = <&sc16is752>,"interrupts:0";
35 + int_pin = <&sc16is752>,"interrupts:0";
36 + xtal = <&sc16is752_clk>,"clock-frequency:0";