Use devm_ioremap_resource() in order to make the code simpler and
it gives proper codes on errors.
Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx>
---
drivers/tty/serial/imx.c | 44 ++++----------------------------------------
1 file changed, 4 insertions(+), 40 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index dff0f0a..d185972 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1469,44 +1469,13 @@ static const char *imx_type(struct uart_port *port)
}
/*
- * Release the memory region(s) being used by 'port'.
- */
-static void imx_release_port(struct uart_port *port)
-{
- struct platform_device *pdev = to_platform_device(port->dev);
- struct resource *mmres;
-
- mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(mmres->start, resource_size(mmres));
-}
-
-/*
- * Request the memory region(s) being used by 'port'.
- */
-static int imx_request_port(struct uart_port *port)
-{
- struct platform_device *pdev = to_platform_device(port->dev);
- struct resource *mmres;
- void *ret;
-
- mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mmres)
- return -ENODEV;
-
- ret = request_mem_region(mmres->start, resource_size(mmres), "imx-uart");
-
- return ret ? 0 : -EBUSY;
-}
-
-/*
* Configure/autoconfigure the port.
*/
static void imx_config_port(struct uart_port *port, int flags)
{
struct imx_port *sport = (struct imx_port *)port;
- if (flags & UART_CONFIG_TYPE &&
- imx_request_port(&sport->port) == 0)
+ if (flags & UART_CONFIG_TYPE)
sport->port.type = PORT_IMX;
}
@@ -1616,8 +1585,6 @@ static struct uart_ops imx_pops = {
.flush_buffer = imx_flush_buffer,
.set_termios = imx_set_termios,
.type = imx_type,
- .release_port = imx_release_port,
- .request_port = imx_request_port,
.config_port = imx_config_port,
.verify_port = imx_verify_port,
#if defined(CONFIG_CONSOLE_POLL)
@@ -1950,12 +1917,9 @@ static int serial_imx_probe(struct platform_device *pdev)
return ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
-
- base = devm_ioremap(&pdev->dev, res->start, PAGE_SIZE);
- if (!base)
- return -ENOMEM;
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
sport->port.dev = &pdev->dev;
sport->port.mapbase = res->start;
--
1.8.3.2
--
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