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39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From 48bf88ebb1abf55168f636d7a6edf2ca79be13c6 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 6 May 2020 14:25:20 +0100
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Subject: [PATCH] overlays: sc16is752-spi1: Add xtal parameter
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The other sc16is75x overlays have an xtal parameter to allow a
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different crystal frequency to be specified, but sc16is752-spi1
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doesn't. Fix this omission.
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See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=273234
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/README | 1 +
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arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts | 3 ++-
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2 files changed, 3 insertions(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -2114,6 +2114,7 @@ Info: Overlay for the NXP SC16IS752 Du
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Load: dtoverlay=sc16is752-spi1,<param>=<val>
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Params: int_pin GPIO used for IRQ (default 24)
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+ xtal On-board crystal frequency (default 14745600)
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Name: sdhost
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--- a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
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@@ -56,6 +56,7 @@
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};
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__overrides__ {
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- int_pin = <&sc16is752>,"interrupts:0";
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+ int_pin = <&sc16is752>,"interrupts:0";
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+ xtal = <&sc16is752_clk>,"clock-frequency:0";
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};
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};
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