From e3e12f52b214121840b44c91de5b3e5af5d3eb84 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 06 Nov 2023 03:04:41 +0000
Subject: [PATCH] rk3568 rt init

---
 kernel/Documentation/devicetree/bindings/spi/spi-rockchip.txt |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/kernel/Documentation/devicetree/bindings/spi/spi-rockchip.txt b/kernel/Documentation/devicetree/bindings/spi/spi-rockchip.txt
index 3016484..0dbc450 100644
--- a/kernel/Documentation/devicetree/bindings/spi/spi-rockchip.txt
+++ b/kernel/Documentation/devicetree/bindings/spi/spi-rockchip.txt
@@ -35,6 +35,11 @@
 - rx-sample-delay-ns: nanoseconds to delay after the SCLK edge before sampling
 		Rx data (may need to be fine tuned for high capacitance lines).
 		No delay (0) by default.
+- csm: ss_n be high for half or one sclk_out cycle after every frame data is
+		transferred:
+		- "0" for keep low;
+		- "1" for half sclk_out;
+		- "2" for one sclk_out.
 - pinctrl-names: Names for the pin configuration(s); may be "default" or
 		"sleep", where the "sleep" configuration may describe the state
 		the pins should be in during system suspend. See also

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