From: Nishanth Menon <nm@ti.com>
To: Santosh Shilimkar <ssantosh@kernel.org>,
Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh+dt@kernel.org>
Cc: <linux-serial@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Tony Lindgren <tony@atomide.com>, Vignesh R <vigneshr@ti.com>,
Tero Kristo <t-kristo@ti.com>,
Russell King <linux@armlinux.org.uk>,
Sudeep Holla <sudeep.holla@arm.com>, Nishanth Menon <nm@ti.com>,
Sekhar Nori <nsekhar@ti.com>
Subject: [RFC PATCH 3/6] serial: 8250_omap: Add support for AM654 UART controller
Date: Tue, 5 Jun 2018 01:01:22 -0500 [thread overview]
Message-ID: <20180605060125.9518-4-nm@ti.com> (raw)
In-Reply-To: <20180605060125.9518-1-nm@ti.com>
AM654 uses a UART controller that is compatible (partially) with
existing 8250 UART, however, has a few differences with respect to DMA
support and control paths. Introduce a base definition that allows us
to 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>
---
Documentation/devicetree/bindings/serial/omap_serial.txt | 1 +
drivers/tty/serial/8250/8250_omap.c | 1 +
2 files changed, 2 insertions(+)
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
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 1b337fee07ed..a019286f8bb6 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -1115,6 +1115,7 @@ static const u8 am3352_habit = OMAP_DMA_TX_KICK | UART_ERRATA_CLOCK_DISABLE;
static const u8 dra742_habit = UART_ERRATA_CLOCK_DISABLE;
static const struct of_device_id omap8250_dt_ids[] = {
+ { .compatible = "ti,am654-uart" },
{ .compatible = "ti,omap2-uart" },
{ .compatible = "ti,omap3-uart" },
{ .compatible = "ti,omap4-uart", .data = &omap4_habit, },
--
2.15.1
next prev parent reply other threads:[~2018-06-05 6:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-05 6:01 [RFC PATCH 0/6] arm64: Initial support Texas Instrument's AM654 Platform Nishanth Menon
2018-06-05 6:01 ` [RFC PATCH 1/6] Documentation: arm: ti: Add bindings for AM654 SoC Nishanth Menon
2018-06-12 21:05 ` Rob Herring
2018-06-12 22:01 ` Nishanth Menon
2018-06-05 6:01 ` [RFC PATCH 2/6] arm64: Add support for TI's K3 Multicore SoC architecture Nishanth Menon
2018-06-05 6:01 ` Nishanth Menon [this message]
2018-06-12 21:06 ` [RFC PATCH 3/6] serial: 8250_omap: Add support for AM654 UART controller Rob Herring
2018-06-12 22:03 ` Nishanth Menon
2018-06-15 17:17 ` Sekhar Nori
2018-06-15 21:56 ` Rob Herring
2018-06-05 6:01 ` [RFC PATCH 4/6] serial: 8250_omap: Make 8250_omap driver driver depend on ARCH_K3 Nishanth Menon
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