linux-kernel - [RFC 0/2] mmc: sdhci: Fix sdhci caps register bits with corrections provided by dt

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Date:   Tue, 25 Oct 2016 14:58:56 -0500
From:   Zach Brown <zach.brown@...com>
To:     <ulf.hansson@...aro.org>
CC:     <adrian.hunter@...el.com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <linux-mmc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <zach.brown@...com>
Subject: [RFC 0/2] mmc: sdhci: Fix sdhci caps register bits with corrections provided by dt

For various reasons the sdhci caps register can be incorrect. This patch set
introduces a general way to correct the bits when they are read to accurately
reflect the capabilties of the controller/board combo.

The first patch creates sdhci-caps and sdhci-caps-mask dt properties that
combined represent the correction to the sdhci caps register.

The second patch uses the new dt properties to correct the caps from the
register as they read during __sdhci_read_caps.

Zach Brown (2):
  mmc: sdhci: dt: Add device tree properties sdhci-caps and sdhci-caps-mask
  mmc: sdhci: Use sdhci-caps-mask and sdhci-caps to change the caps read
        during __sdhci_read_caps

 Documentation/devicetree/bindings/mmc/mmc.txt |  7 +++++++
 drivers/mmc/host/sdhci.c                      | 24 ++++++++++++++++++++++--
 2 files changed, 29 insertions(+), 2 deletions(-)

--
2.7.4