From 16a10f04c6788be6779829ab3ff130a3c4a2aeff Mon Sep 17 00:00:00 2001
From: Yao Xiao <xiaoyao@rock-chips.com>
Date: Sat, 27 Aug 2022 17:05:07 +0800
Subject: [PATCH] ARM: dts: rockchip: rv1103g-battery-ipc-v10: Update some sdio
 optimizations

1. Reduce sdio_clk to 30M to reduce interference with rf performance.
2. Setting no-prescan-powerup/post-power-on-delay-ms property saves
   about 50ms of sdio_card initialization time

Signed-off-by: Yao Xiao <xiaoyao@rock-chips.com>
Change-Id: I3ea179c9ceada54ad129863f83aeca9f45166d97
---
 arch/arm/boot/dts/rv1103g-battery-ipc-v10.dts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/rv1103g-battery-ipc-v10.dts b/arch/arm/boot/dts/rv1103g-battery-ipc-v10.dts
index 9f70e86d29e8..a0b5ab977526 100644
--- a/arch/arm/boot/dts/rv1103g-battery-ipc-v10.dts
+++ b/arch/arm/boot/dts/rv1103g-battery-ipc-v10.dts
@@ -287,7 +287,7 @@
 };
 
 &sdio {
-	max-frequency = <50000000>;
+	max-frequency = <30000000>;
 	no-sd;
 	no-mmc;
 	bus-width = <4>;
@@ -297,6 +297,8 @@
 	non-removable;
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdmmc1m1_cmd &sdmmc1m1_clk &sdmmc1m1_bus4>;
+	no-prescan-powerup;
+	post-power-on-delay-ms = <0>;
 	status = "okay";
 };