From: Shawn Lin <shawn.lin@rock-chips.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>,
Jaehoon Chung <jh80.chung@samsung.com>,
Rob Herring <robh+dt@kernel.org>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, Shawn Lin <shawn.lin@rock-chips.com>
Subject: [PATCH v2 1/2] Documentation: mmc: add description for new no-sd* and no-mmc
Date: Thu, 14 Jul 2016 16:26:03 +0800 [thread overview]
Message-ID: <1468484764-32353-1-git-send-email-shawn.lin@rock-chips.com> (raw)
This patch adds description for no-sd, no-sdio, no-mmc. We expose
these to DT as some of the controllers are unable to deal with
special cmd type due to hw limitation.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
---
Changes in v2:
- amend the description of these properties and the commit msg
Documentation/devicetree/bindings/mmc/mmc.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index ecc007a..22d1e1f 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -49,6 +49,9 @@ Optional properties:
- mmc-hs400-enhanced-strobe: eMMC HS400 enhanced strobe mode is supported
- dsr: Value the card's (optional) Driver Stage Register (DSR) should be
programmed with. Valid range: [0 .. 0xffff].
+- no-sdio: controller is limited to send sdio cmd during initialization
+- no-sd: controller is limited to send sd cmd during initialization
+- no-mmc: controller is limited to send mmc cmd during initialization
*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
polarity properties, we have to fix the meaning of the "normal" and "inverted"
--
2.3.7
next reply other threads:[~2016-07-14 8:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-14 8:26 Shawn Lin [this message]
2016-07-14 8:26 ` [PATCH v2 2/2] mmc: core: expose MMC_CAP2_NO_* to dt Shawn Lin
2016-07-18 11:20 ` Ulf Hansson
2016-07-16 22:49 ` [PATCH v2 1/2] Documentation: mmc: add description for new no-sd* and no-mmc Rob Herring
[not found] ` <1468484764-32353-1-git-send-email-shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-07-18 11:20 ` Ulf Hansson
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