From: Nishanth Menon <nm@ti.com>
To: Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-serial@vger.kernel.org>, Nishanth Menon <nm@ti.com>,
Tony Lindgren <tony@atomide.com>, Tero Kristo <t-kristo@ti.com>,
Vignesh R <vigneshr@ti.com>, Jiri Slaby <jslaby@suse.com>,
Sekhar Nori <nsekhar@ti.com>
Subject: [PATCH 1/2] dt-bindings: serial: 8250_omap: Add compatible for AM654 UART controller
Date: Tue, 19 Jun 2018 14:44:49 -0500 [thread overview]
Message-ID: <20180619194450.6353-2-nm@ti.com> (raw)
In-Reply-To: <20180619194450.6353-1-nm@ti.com>
AM654 uses a UART controller that is only partially compatible with
existing 8250 UART. UART DMA integration is substantially different
and even a match against standard 8250 or omap4 would result in
non-working UART once DMA is enabled by default.
Introduce a specific compatible to help build up the differences in
follow on patches.
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Vignesh R <vigneshr@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
Changes since RFC:
* DT binding has been split out as it's own patch and commit message elaborated
RFC: https://patchwork.kernel.org/patch/10447641/
Documentation/devicetree/bindings/serial/omap_serial.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt
index 4b0f05adb228..c35d5ece1156 100644
--- a/Documentation/devicetree/bindings/serial/omap_serial.txt
+++ b/Documentation/devicetree/bindings/serial/omap_serial.txt
@@ -1,6 +1,7 @@
OMAP UART controller
Required properties:
+- compatible : should be "ti,am654-uart" for AM654 controllers
- compatible : should be "ti,omap2-uart" for OMAP2 controllers
- compatible : should be "ti,omap3-uart" for OMAP3 controllers
- compatible : should be "ti,omap4-uart" for OMAP4 controllers
--
2.15.1
next prev parent reply other threads:[~2018-06-19 19:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 19:44 [PATCH 0/2] serial: 8250_omap: Add compatible for AM654 UART Nishanth Menon
2018-06-19 19:44 ` Nishanth Menon [this message]
2018-06-26 21:12 ` [PATCH 1/2] dt-bindings: serial: 8250_omap: Add compatible for AM654 UART controller Rob Herring
2018-06-19 19:44 ` [PATCH 2/2] serial: 8250_omap: Add support " Nishanth Menon
2018-06-20 4:19 ` [PATCH 0/2] serial: 8250_omap: Add compatible for AM654 UART Tony Lindgren
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