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serial: sh-sci: Use of_device_get_match_data() helper 

Use the of_device_get_match_data() helper instead of open coding.
Note that when used with DT, there's always a valid match.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2017-10-04 14:21:56 +02:00 committed by Greg Kroah-Hartman
parent 263763c1c5
commit 6e605a0150
1 changed files with 5 additions and 6 deletions
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11
drivers/tty/serial/sh-sci.c
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@ -40,6 +40,7 @@
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/scatterlist.h>
@ -3073,17 +3074,15 @@ static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
unsigned int *dev_id)
{
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *match;
struct plat_sci_port *p;
struct sci_port *sp;
const void *data;
int id;
if (!IS_ENABLED(CONFIG_OF) || !np)
return NULL;
match = of_match_node(of_sci_match, np);
if (!match)
return NULL;
data = of_device_get_match_data(&pdev->dev);
p = devm_kzalloc(&pdev->dev, sizeof(struct plat_sci_port), GFP_KERNEL);
if (!p)
@ -3099,8 +3098,8 @@ static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
sp = &sci_ports[id];
*dev_id = id;
p->type = SCI_OF_TYPE(match->data);
p->regtype = SCI_OF_REGTYPE(match->data);
p->type = SCI_OF_TYPE(data);
p->regtype = SCI_OF_REGTYPE(data);
sp->has_rtscts = of_property_read_bool(np, "uart-has-rtscts");