linux-kernel - [PATCH v1 0/2] mmc: sdhci-of-aspeed: Support toggling SD bus signal

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Message-ID: <20210408015218.20560-1-steven_lee@aspeedtech.com>
Date:   Thu, 8 Apr 2021 09:52:16 +0800
From:   Steven Lee <steven_lee@...eedtech.com>
To:     Andrew Jeffery <andrew@...id.au>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Joel Stanley <joel@....id.au>,
        "Adrian Hunter" <adrian.hunter@...el.com>,
        Ryan Chen <ryanchen.aspeed@...il.com>,
        "moderated list:ASPEED SD/MMC DRIVER" <linux-aspeed@...ts.ozlabs.org>,
        "moderated list:ASPEED SD/MMC DRIVER" <openbmc@...ts.ozlabs.org>,
        "open list:ASPEED SD/MMC DRIVER" <linux-mmc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
CC:     <ryan_chen@...eedtech.com>, <chin-ting_kuo@...eedtech.com>
Subject: [PATCH v1 0/2] mmc: sdhci-of-aspeed: Support toggling SD bus signal

Hello,

This series implements support for toggling SD bus signal voltage by
GPIO pin.

This series has been tested on AST2600-A2 EVB with APLL and 200MHz HCLK
clock source with sdr104, sdr50, sdr25, sdr12 and high speed mode. 
This series were also be tested on AST2600-A1 EVB and AST2500 EVB that
don't have the design of signal voltage toggling by GPIO.

Please help to review.

Regards,
Steven

Steven Lee (2):
  dt-bindings: mmc: sdhci-of-aspeed: Add power-gpio and
    power-switch-gpio
  mmc: sdhci-of-aspeed: Support toggling SD bus signal voltage by GPIO

 .../devicetree/bindings/mmc/aspeed,sdhci.yaml |  25 +++
 drivers/mmc/host/sdhci-of-aspeed.c            | 155 ++++++++++++++++--
 2 files changed, 162 insertions(+), 18 deletions(-)

-- 
2.17.1