target/linux/bcm27xx/patches-5.4/950-0711-overlays-sc16is752-spi1-Add-xtal-parameter.patch

   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
   5
   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.
   9
  10 See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=273234
  11
  12 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  13 ---
  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(-)
  17
  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
  21
  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)
  25
  26
  27  Name:   sdhost
  28 --- a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
  29 +++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
  30 @@ -56,6 +56,7 @@
  31         };
  32
  33      __overrides__ {
  34 -      int_pin = <&sc16is752>,"interrupts:0";
  35 +               int_pin = <&sc16is752>,"interrupts:0";
  36 +               xtal = <&sc16is752_clk>,"clock-frequency:0";
  37      };
  38  };