Request pins using pinctrl framework. Only show a warning
on error as some boards set the pins in the bootloader
even if CONFIG_PINCTRL is enabled.
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
---
Note that this has only so far been tested with the legacy
non-devicetree boot as devicetree boot now has a regression
issue with omap-serial.
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -40,6 +40,7 @@
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/gpio.h>
+#include <linux/pinctrl/consumer.h>
#include <plat/omap-serial.h>
@@ -108,6 +109,7 @@ struct uart_omap_port {
u32 latency;
u32 calc_latency;
struct work_struct qos_work;
+ struct pinctrl *pins;
};
#define to_uart_omap_port(p) ((container_of((p), struct uart_omap_port, port)))
@@ -1371,6 +1373,13 @@ static int __devinit serial_omap_probe(struct platform_device *pdev)
goto err_port_line;
}
+ up->pins = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(up->pins)) {
+ dev_warn(&pdev->dev, "did not get pins for uart%i error: %li\n",
+ up->port.line, PTR_ERR(up->pins));
+ up->pins = NULL;
+ }
+
sprintf(up->name, "OMAP UART%d", up->port.line);
up->port.mapbase = mem->start;
up->port.membase = devm_ioremap(&pdev->dev, mem->start,
--
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