linux-kernel - [PATCH 2/2] serial: 8250_omap: Add support for AM654 UART controller

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Message-ID: <20180619194450.6353-3-nm@ti.com>
Date:   Tue, 19 Jun 2018 14:44:50 -0500
From:   Nishanth Menon <nm@...com>
To:     Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-serial@...r.kernel.org>, Nishanth Menon <nm@...com>,
        Tony Lindgren <tony@...mide.com>,
        Tero Kristo <t-kristo@...com>, Vignesh R <vigneshr@...com>,
        Jiri Slaby <jslaby@...e.com>, Sekhar Nori <nsekhar@...com>
Subject: [PATCH 2/2] serial: 8250_omap: Add support for AM654 UART controller

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@...com>
Cc: Vignesh R <vigneshr@...com>
Signed-off-by: Nishanth Menon <nm@...com>
---

Changes since RFC: Driver change has been split out with corresponding description.

RFC: https://patchwork.kernel.org/patch/10447641/

 drivers/tty/serial/8250/8250_omap.c | 1 +
 1 file changed, 1 insertion(+)

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