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[72.48.98.129]) by smtp.googlemail.com with ESMTPSA id a5sm1322910oii.3.2016.08.24.16.24.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 24 Aug 2016 16:24:40 -0700 (PDT) From: Rob Herring To: Greg Kroah-Hartman , Marcel Holtmann , Jiri Slaby , Sebastian Reichel , Arnd Bergmann , "Dr . H . Nikolaus Schaller" , Alan Cox Cc: Loic Poulain , Pavel Machek , Peter Hurley , NeilBrown , Linus Walleij , linux-bluetooth@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 1/6] serio: add DT driver binding Date: Wed, 24 Aug 2016 18:24:31 -0500 Message-Id: <20160824232437.9446-2-robh@kernel.org> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160824232437.9446-1-robh@kernel.org> References: <20160824232437.9446-1-robh@kernel.org> Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org This adds DT driver binding support to the serio bus. The parent of the serio port device must have a device_node associated with it. Typically, this would be the UART device node. The slave device must be a child node of the UART device node. Signed-off-by: Rob Herring --- drivers/input/serio/serio.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index 1ca7f55..9e8eb7a 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -36,6 +36,7 @@ #include #include #include +#include MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION("Serio abstraction core"); @@ -88,7 +89,7 @@ static void serio_disconnect_driver(struct serio *serio) static int serio_match_port(const struct serio_device_id *ids, struct serio *serio) { - while (ids->type || ids->proto) { + while (ids && (ids->type || ids->proto)) { if ((ids->type == SERIO_ANY || ids->type == serio->id.type) && (ids->proto == SERIO_ANY || ids->proto == serio->id.proto) && (ids->extra == SERIO_ANY || ids->extra == serio->id.extra) && @@ -542,6 +543,8 @@ static void serio_init_port(struct serio *serio) static void serio_add_port(struct serio *serio) { struct serio *parent = serio->parent; + struct device_node *parent_node = + serio->dev.parent ? serio->dev.parent->of_node : NULL; int error; if (parent) { @@ -555,6 +558,8 @@ static void serio_add_port(struct serio *serio) if (serio->start) serio->start(serio); + serio->dev.of_node = of_get_next_available_child(parent_node, NULL); + error = device_add(&serio->dev); if (error) dev_err(&serio->dev, @@ -902,6 +907,10 @@ static int serio_bus_match(struct device *dev, struct device_driver *drv) struct serio *serio = to_serio_port(dev); struct serio_driver *serio_drv = to_serio_driver(drv); + if (of_driver_match_device(dev, drv)) { + printk("matched %s\n", dev->of_node->name); + return 1; + } if (serio->manual_bind || serio_drv->manual_bind) return 0;