From: Hugo Villeneuve <hugo@hugovil.com>
To: gregkh@linuxfoundation.org, jirislaby@kernel.org,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, hvilleneuve@dimonoff.com
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
devicetree@vger.kernel.org, hugo@hugovil.com
Subject: [PATCH 1/4] serial: sc16is7xx: use device_property APIs when configuring irda mode
Date: Wed, 20 Sep 2023 11:20:12 -0400 [thread overview]
Message-ID: <20230920152015.1376838-2-hugo@hugovil.com> (raw)
In-Reply-To: <20230920152015.1376838-1-hugo@hugovil.com>
From: Hugo Villeneuve <hvilleneuve@dimonoff.com>
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>
---
drivers/tty/serial/sc16is7xx.c | 34 ++++++++++++++++++++++++----------
1 file changed, 24 insertions(+), 10 deletions(-)
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 1fe2c3e08a35..db2bb1c0d36c 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -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)
--
2.30.2
next prev parent reply other threads:[~2023-09-20 15:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-20 15:20 [PATCH 0/4] serial: sc16is7xx: device tree improvements Hugo Villeneuve
2023-09-20 15:20 ` Hugo Villeneuve [this message]
2023-09-20 15:20 ` [PATCH 2/4] serial: sc16is7xx: recognize "nxp,irda-mode-ports" DT property Hugo Villeneuve
2023-09-20 15:20 ` [PATCH 3/4] dt-bindings: sc16is7xx: add vendor prefix to irda-mode-ports property Hugo Villeneuve
2023-09-21 10:29 ` m.brock
2023-09-21 13:37 ` Hugo Villeneuve
2023-09-21 13:47 ` Conor Dooley
2023-09-21 16:24 ` Rob Herring
2023-09-21 16:32 ` Hugo Villeneuve
2023-09-22 19:52 ` Rob Herring
2023-09-27 14:28 ` Hugo Villeneuve
2023-09-20 15:20 ` [PATCH 4/4] dt-bindings: sc16is7xx: convert to YAML Hugo Villeneuve
2023-09-20 23:13 ` Rob Herring
2023-09-21 16:22 ` Hugo Villeneuve
2023-09-21 13:45 ` Conor Dooley
2023-09-21 15:30 ` Hugo Villeneuve
2023-09-22 11:35 ` Conor Dooley
2023-09-22 13:08 ` Hugo Villeneuve
2023-09-21 15:33 ` Rob Herring
2023-09-21 16:27 ` Hugo Villeneuve
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