serial: sh-sci: Remove unused GPIO request code

The driver requests at initialization time GPIOs passed through platform
data. No platform makes use of this feature, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 0 insertions, 67 deletions

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 98b8e3c98586..99a64fd16d46 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -32,7 +32,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/errno.h>
-#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
@@ -79,7 +78,6 @@ struct sci_port {
 
         int                     irqs[SCIx_NR_IRQS];
         char                    *irqstr[SCIx_NR_IRQS];
-        char                    *gpiostr[SCIx_NR_FNS];
 
         struct dma_chan                 *chan_tx;
         struct dma_chan                 *chan_rx;
@@ -1153,67 +1151,6 @@ static void sci_free_irq(struct sci_port *port)
         }
 }
 
-static const char *sci_gpio_names[SCIx_NR_FNS] = {
-        "sck", "rxd", "txd", "cts", "rts",
-};
-
-static const char *sci_gpio_str(unsigned int index)
-{
-        return sci_gpio_names[index];
-}
-
-static void sci_init_gpios(struct sci_port *port)
-{
-        struct uart_port *up = &port->port;
-        int i;
-
-        if (!port->cfg)
-                return;
-
-        for (i = 0; i < SCIx_NR_FNS; i++) {
-                const char *desc;
-                int ret;
-
-                if (!port->cfg->gpios[i])
-                        continue;
-
-                desc = sci_gpio_str(i);
-
-                port->gpiostr[i] = kasprintf(GFP_KERNEL, "%s:%s",
-                                             dev_name(up->dev), desc);
-
-                /*
-                 * If we've failed the allocation, we can still continue
-                 * on with a NULL string.
-                 */
-                if (!port->gpiostr[i])
-                        dev_notice(up->dev, "%s string allocation failure\n",
-                                   desc);
-
-                ret = gpio_request(port->cfg->gpios[i], port->gpiostr[i]);
-                if (unlikely(ret != 0)) {
-                        dev_notice(up->dev, "failed %s gpio request\n", desc);
-
-                        /*
-                         * If we can't get the GPIO for whatever reason,
-                         * no point in keeping the verbose string around.
-                         */
-                        kfree(port->gpiostr[i]);
-                }
-        }
-}
-
-static void sci_free_gpios(struct sci_port *port)
-{
-        int i;
-
-        for (i = 0; i < SCIx_NR_FNS; i++)
-                if (port->cfg->gpios[i]) {
-                        gpio_free(port->cfg->gpios[i]);
-                        kfree(port->gpiostr[i]);
-                }
-}
-
 static unsigned int sci_tx_empty(struct uart_port *port)
 {
         unsigned short status = serial_port_in(port, SCxSR);
@@ -2240,8 +2177,6 @@ static int sci_init_single(struct platform_device *dev,
 
                 port->dev = &dev->dev;
 
-                sci_init_gpios(sci_port);
-
                 pm_runtime_enable(&dev->dev);
         }
 
@@ -2298,8 +2233,6 @@ static int sci_init_single(struct platform_device *dev,
 
 static void sci_cleanup_single(struct sci_port *port)
 {
-        sci_free_gpios(port);
-
         clk_put(port->iclk);
         clk_put(port->fclk);