[PATCH 5/5] omap-serial: Request pins using pinctrl framework
From: tony@atomide.com (Tony Lindgren)
Date: 2012-09-06 19:12:17
Also in:
linux-omap, linux-serial
* Tony Lindgren [off-list ref] [120906 11:59]:
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. Cc: linux-serial at vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Tony Lindgren <tony@atomide.com> ---
Greg, this patch should be OK for you to pick, it should not break anything even if pinctrl is not available yet. Let me know if it needs rebasing on top of other things you've queued for omap-serial. Regards, Tony
quoted hunk ↗ jump to hunk
arch/arm/plat-omap/include/plat/omap-serial.h | 1 + drivers/tty/serial/omap-serial.c | 10 ++++++++++ 2 files changed, 11 insertions(+)diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index 1a52725..0f4de14 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h@@ -106,6 +106,7 @@ struct uart_omap_port { struct uart_port port; struct uart_omap_dma uart_dma; struct platform_device *pdev; + struct pinctrl *pins; unsigned char ier; unsigned char lcr;diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index d3cda0c..068e88c 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c@@ -39,6 +39,7 @@ #include <linux/irq.h> #include <linux/pm_runtime.h> #include <linux/of.h> +#include <linux/pinctrl/consumer.h> #include <plat/dma.h> #include <plat/dmtimer.h>@@ -1492,6 +1493,13 @@ static int serial_omap_probe(struct platform_device *pdev) goto err_port_line; } + up->pins = 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,@@ -1570,6 +1578,8 @@ static int serial_omap_remove(struct platform_device *dev) pm_runtime_disable(&up->pdev->dev); uart_remove_one_port(&serial_omap_reg, &up->port); pm_qos_remove_request(&up->pm_qos_request); + if (up->pins) + pinctrl_put(up->pins); } platform_set_drvdata(dev, NULL); --To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html