From: Rob Herring <robh@kernel.org>
To: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Cc: devicetree@vger.kernel.org, Heiko Stuebner <heiko@sntech.de>,
linux-kernel@vger.kernel.org,
Kishon Vijay Abraham I <kishon@ti.com>,
linux-rockchip@lists.infradead.org, Vinod Koul <vkoul@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/2] devicetree: phy: rockchip-emmc add output-tapdelay-select
Date: Mon, 7 Dec 2020 11:21:11 -0600 [thread overview]
Message-ID: <20201207172039.GA463809@robh.at.kernel.org> (raw)
In-Reply-To: <20201202082507.3536-3-chris.ruehl@gtsys.com.hk>
On Wed, Dec 02, 2020 at 04:25:07PM +0800, Chris Ruehl wrote:
> Update the rockchip-emmc-phy.txt and add the u32 property
> 'output-tapdelay-select'. This allow to set the otapdlysec register.
>
> Tested with our customized rk3399 board to tune eMMC.
>
> Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
> ---
> Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
> index 3e4d2d79a65d..00aa2d349e55 100644
> --- a/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
> +++ b/Documentation/devicetree/bindings/phy/rockchip-emmc-phy.txt
> @@ -18,6 +18,9 @@ Optional properties:
> If not set, the default value of 50 will be applied.
> - enable-strobe-pulldown: Enable internal pull-down for the strobe line.
> If not set, pull-down is not used.
> + - output-tapdelay-select: Specifies the phyctrl_otapdlysec register.
> + If not set, the register defaults to 0x4.
> + Maximum value 0xf.
Needs a vendor prefix.
>
> Example:
>
> --
> 2.20.1
>
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next prev parent reply other threads:[~2020-12-07 17:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 8:25 [PATCH 0/2] phy: rockchip: set otapdlysec for in dts Chris Ruehl
2020-12-02 8:25 ` [PATCH 1/2] phy: rockchip-emmc: output tap delay dt property Chris Ruehl
2020-12-02 8:25 ` [PATCH 2/2] devicetree: phy: rockchip-emmc add output-tapdelay-select Chris Ruehl
2020-12-07 17:21 ` Rob Herring [this message]
2020-12-05 8:10 ` [PATCH 0/2] phy: rockchip: set otapdlysec for in dts Vinod Koul
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