devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Faiz Abbas <faiz_abbas@ti.com>
To: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-mmc@vger.kernel.org>
Cc: <kishon@ti.com>, <adrian.hunter@intel.com>,
	<mark.rutland@arm.com>, <robh+dt@kernel.org>,
	<ulf.hansson@linaro.org>, <zhang.chunyan@linaro.org>,
	<tony@atomide.com>
Subject: [PATCH v3 1/7] dt-bindings: sdhci-omap: Add properties for using external dma
Date: Tue, 10 Dec 2019 15:21:45 +0530	[thread overview]
Message-ID: <20191210095151.15441-2-faiz_abbas@ti.com> (raw)
In-Reply-To: <20191210095151.15441-1-faiz_abbas@ti.com>

From: Chunyan Zhang <zhang.chunyan@linaro.org>

sdhci-omap can support both external dma controller via dmaengine
framework as well as ADMA which standard SD host controller
provides. Add binding documentation for these external dma properties.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
 Documentation/devicetree/bindings/mmc/sdhci-omap.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
index 72c4dec7e1db..97efb01617dd 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
@@ -15,6 +15,13 @@ Required properties:
 		 "hs200_1_8v",
 - pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt
 
+Optional properties:
+- dmas:		List of DMA specifiers with the controller specific format as described
+		in the generic DMA client binding. A tx and rx specifier is required.
+- dma-names:	List of DMA request names. These strings correspond 1:1 with the
+		DMA specifiers listed in dmas. The string naming is to be "tx"
+		and "rx" for TX and RX DMA requests, respectively.
+
 Example:
 	mmc1: mmc@4809c000 {
 		compatible = "ti,dra7-sdhci";
@@ -22,4 +29,6 @@ Example:
 		ti,hwmods = "mmc1";
 		bus-width = <4>;
 		vmmc-supply = <&vmmc>; /* phandle to regulator node */
+		dmas = <&sdma 61 &sdma 62>;
+		dma-names = "tx", "rx";
 	};
-- 
2.19.2


  reply	other threads:[~2019-12-10  9:50 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-10  9:51 [PATCH v3 0/7] Port am335 and am437 devices to sdhci-omap Faiz Abbas
2019-12-10  9:51 ` Faiz Abbas [this message]
2019-12-18 21:39   ` [PATCH v3 1/7] dt-bindings: sdhci-omap: Add properties for using external dma Rob Herring
2019-12-10  9:51 ` [PATCH v3 2/7] mmc: sdhci: add support for using external DMA devices Faiz Abbas
2019-12-12 12:55   ` Adrian Hunter
2019-12-16  8:27     ` Faiz Abbas
2019-12-16 13:45       ` Adrian Hunter
2019-12-23 14:25         ` Faiz Abbas
2019-12-10  9:51 ` [PATCH v3 3/7] mmc: sdhci-omap: Add using external dma Faiz Abbas
2019-12-10  9:51 ` [PATCH v3 4/7] mmc: sdhci: Add quirk for disabling DTO during erase command Faiz Abbas
2019-12-13  9:40   ` Adrian Hunter
2019-12-16  8:42     ` Faiz Abbas
2019-12-10  9:51 ` [PATCH v3 5/7] mmc: sdhci-omap: Add DISABLE_DTO_FOR_ERASE Quirk Faiz Abbas
2019-12-10  9:51 ` [PATCH v3 6/7] dt-bindings: sdhci-omap: Add am335x and am437x specific bindings Faiz Abbas
2019-12-10  9:51 ` [PATCH v3 7/7] mmc: sdhci-omap: Add am335x and am437x specific compatibles Faiz Abbas

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191210095151.15441-2-faiz_abbas@ti.com \
    --to=faiz_abbas@ti.com \
    --cc=adrian.hunter@intel.com \
    --cc=devicetree@vger.kernel.org \
    --cc=kishon@ti.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mmc@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=robh+dt@kernel.org \
    --cc=tony@atomide.com \
    --cc=ulf.hansson@linaro.org \
    --cc=zhang.chunyan@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).