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serial: sc16is7xx: use device_property APIs when configuring irda mode 

Convert driver to be property provider agnostic and allow it to be
used on non-OF platforms.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20230927160153.2717788-2-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hugo Villeneuve 2023-09-27 12:01:52 -04:00 committed by Greg Kroah-Hartman
parent 6905ab83b7
commit 1a0a2a1e57
1 changed files with 24 additions and 10 deletions
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34
drivers/tty/serial/sc16is7xx.c
View File

@ -1408,6 +1408,29 @@ static int sc16is7xx_setup_gpio_chip(struct sc16is7xx_port *s)
}
#endif
static void sc16is7xx_setup_irda_ports(struct sc16is7xx_port *s)
{
int i;
int ret;
int count;
u32 irda_port[2];
struct device *dev = s->p[0].port.dev;
count = device_property_count_u32(dev, "irda-mode-ports");
if (count < 0 || count > ARRAY_SIZE(irda_port))
return;
ret = device_property_read_u32_array(dev, "irda-mode-ports",
irda_port, count);
if (ret)
return;
for (i = 0; i < count; i++) {
if (irda_port[i] < s->devtype->nr_uart)
s->p[irda_port[i]].irda_mode = true;
}
}
/*
* Configure ports designated to operate as modem control lines.
*/
@ -1590,16 +1613,7 @@ static int sc16is7xx_probe(struct device *dev,
sc16is7xx_power(&s->p[i].port, 0);
}
if (dev->of_node) {
struct property *prop;
const __be32 *p;
u32 u;
of_property_for_each_u32(dev->of_node, "irda-mode-ports",
prop, p, u)
if (u < devtype->nr_uart)
s->p[u].irda_mode = true;
}
sc16is7xx_setup_irda_ports(s);
ret = sc16is7xx_setup_mctrl_ports(s);
if (ret)