linux-kernel - [PATCH v2] ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288-veyron-speedy.

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Message-ID: <87twd1vzc5.fsf@aikidev.net>
Date:   Tue, 27 Sep 2016 13:53:46 -0700
From:   Vagrant Cascadian <vagrantc@...idev.net>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288-veyron-speedy.

This essentially mimics what was done with rk3288-veyron-minnie in
commit 984926781122f034d5bc9962815d135b6c4a8e1d.

The eMMC of the speedy Chromebook also appears to need the same tuning
workaround, as it frequently fails to recognize the eMMC without it.

Signed-off-by: Vagrant Cascadian <vagrantc@...idev.net>
---
Changes in v2:
 - Added Signed-off-by.

 arch/arm/boot/dts/rk3288-veyron-speedy.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288-veyron-speedy.dts b/arch/arm/boot/dts/rk3288-veyron-speedy.dts
index a0d033f..500fd18 100644
--- a/arch/arm/boot/dts/rk3288-veyron-speedy.dts
+++ b/arch/arm/boot/dts/rk3288-veyron-speedy.dts
@@ -124,6 +124,11 @@
            &sdmmc_bus4>;
 };

+
+&emmc {
+       /delete-property/mmc-hs200-1_8v;
+};
+
 &vcc_5v {
    enable-active-high;
    gpio = <&gpio7 21 GPIO_ACTIVE_HIGH>;
-- 
2.9.3

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