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serial: sirf: Introduce helper variable struct device_node *np 

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven 2016-04-22 17:22:23 +02:00 committed by Greg Kroah-Hartman
parent 182cdcb8bb
commit af99c187f1
1 changed files with 18 additions and 20 deletions
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38
drivers/tty/serial/sirfsoc_uart.c
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@ -1264,6 +1264,7 @@ MODULE_DEVICE_TABLE(of, sirfsoc_uart_ids);
static int sirfsoc_uart_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct sirfsoc_uart_port *sirfport;
struct uart_port *port;
struct resource *res;
@ -1276,13 +1277,13 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
};
const struct of_device_id *match;
match = of_match_node(sirfsoc_uart_ids, pdev->dev.of_node);
match = of_match_node(sirfsoc_uart_ids, np);
sirfport = devm_kzalloc(&pdev->dev, sizeof(*sirfport), GFP_KERNEL);
if (!sirfport) {
ret = -ENOMEM;
goto err;
}
sirfport->port.line = of_alias_get_id(pdev->dev.of_node, "serial");
sirfport->port.line = of_alias_get_id(np, "serial");
sirf_ports[sirfport->port.line] = sirfport;
sirfport->port.iotype = UPIO_MEM;
sirfport->port.flags = UPF_BOOT_AUTOCONF;
@ -1291,25 +1292,24 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
port->private_data = sirfport;
sirfport->uart_reg = (struct sirfsoc_uart_register *)match->data;
sirfport->hw_flow_ctrl = of_property_read_bool(pdev->dev.of_node,
"sirf,uart-has-rtscts");
if (of_device_is_compatible(pdev->dev.of_node, "sirf,prima2-uart") ||
of_device_is_compatible(pdev->dev.of_node, "sirf,atlas7-uart"))
sirfport->hw_flow_ctrl =
of_property_read_bool(np, "sirf,uart-has-rtscts");
if (of_device_is_compatible(np, "sirf,prima2-uart") ||
of_device_is_compatible(np, "sirf,atlas7-uart"))
sirfport->uart_reg->uart_type = SIRF_REAL_UART;
if (of_device_is_compatible(pdev->dev.of_node,
"sirf,prima2-usp-uart") || of_device_is_compatible(
pdev->dev.of_node, "sirf,atlas7-usp-uart")) {
if (of_device_is_compatible(np, "sirf,prima2-usp-uart") ||
of_device_is_compatible(np, "sirf,atlas7-usp-uart")) {
sirfport->uart_reg->uart_type = SIRF_USP_UART;
if (!sirfport->hw_flow_ctrl)
goto usp_no_flow_control;
if (of_find_property(pdev->dev.of_node, "cts-gpios", NULL))
sirfport->cts_gpio = of_get_named_gpio(
pdev->dev.of_node, "cts-gpios", 0);
if (of_find_property(np, "cts-gpios", NULL))
sirfport->cts_gpio =
of_get_named_gpio(np, "cts-gpios", 0);
else
sirfport->cts_gpio = -1;
if (of_find_property(pdev->dev.of_node, "rts-gpios", NULL))
sirfport->rts_gpio = of_get_named_gpio(
pdev->dev.of_node, "rts-gpios", 0);
if (of_find_property(np, "rts-gpios", NULL))
sirfport->rts_gpio =
of_get_named_gpio(np, "rts-gpios", 0);
else
sirfport->rts_gpio = -1;
@ -1336,13 +1336,11 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
gpio_direction_output(sirfport->rts_gpio, 1);
}
usp_no_flow_control:
if (of_device_is_compatible(pdev->dev.of_node, "sirf,atlas7-uart") ||
of_device_is_compatible(pdev->dev.of_node, "sirf,atlas7-usp-uart"))
if (of_device_is_compatible(np, "sirf,atlas7-uart") ||
of_device_is_compatible(np, "sirf,atlas7-usp-uart"))
sirfport->is_atlas7 = true;
if (of_property_read_u32(pdev->dev.of_node,
"fifosize",
&port->fifosize)) {
if (of_property_read_u32(np, "fifosize", &port->fifosize)) {
dev_err(&pdev->dev,
"Unable to find fifosize in uart node.\n");
ret = -EFAULT;