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From: Andy Yan <andyshrk@163.com>
To: heiko@sntech.de
Cc: krzysztof.kozlowski+dt@linaro.org,
	robh+dt@kernel.org,
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	Andy Yan <andy.yan@rock-chips.com>
Subject: [PATCH v2 3/3] ARM: dts: rockchip: Remove rockchip,default-sample-phase from rk3036.dtsi
Date: Mon, 18 Dec 2023 18:55:23 +0800
Message-Id: <20231218105523.2478315-4-andyshrk@163.com>
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From: Andy Yan <andy.yan@rock-chips.com>

This should be a per board property, should not be put in
a soc core dtsi.

And when this property convert from default-sample-phase
in linux-5.7 by commit 8a385eb57296 ("ARM: dts: rockchip: fix
rockchip,default-sample-phase property names"), the emmc
on rk3036 kylin board get a initialising error:

[    4.512797] Freeing unused kernel memory: 8192K
[    4.519500] mmc_host mmc1: Bus speed (slot 0) = 37125000Hz (slot req 37500000Hz, actual 37125000HZ div = 0)
[    4.530971] mmc1: error -84 whilst initialising MMC card
[    4.537277] Run /init as init process
[    4.550932] mmc_host mmc1: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
[    4.664717] mmc_host mmc1: Bus speed (slot 0) = 37125000Hz (slot req 37500000Hz, actual 37125000HZ div = 0)
[    4.676156] mmc1: error -84 whilst initialising MMC card

I think the reason why the emmc on rk3036 kylin board was able
to work before linux-5.7 was that the illegal property was not
correctly identified by the rockchip dw_mmc driver.

Fixes: faea098e1808 ("ARM: dts: rockchip: add core rk3036 dtsi")
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
---

(no changes since v1)

 arch/arm/boot/dts/rockchip/rk3036.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/rockchip/rk3036.dtsi b/arch/arm/boot/dts/rockchip/rk3036.dtsi
index 5344803442a1..466952bf9db4 100644
--- a/arch/arm/boot/dts/rockchip/rk3036.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk3036.dtsi
@@ -287,7 +287,6 @@ emmc: mmc@1021c000 {
 		clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
 			 <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
 		clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
-		rockchip,default-sample-phase = <158>;
 		disable-wp;
 		dmas = <&pdma 12>;
 		dma-names = "rx-tx";
-- 
2.34.1