[PATCH v1 2/7] media: em28xx: Split em28xx_pctv_290e_set_lna_gpio() helper

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

Split em28xx_pctv_290e_set_lna_gpio() helper in order to deduplicate
the GPIO request and setting.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/media/usb/em28xx/em28xx-dvb.c | 31 ++++++++++++---------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 8482fc4045ea..ef148a27c94d 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -737,17 +737,14 @@ static void pctv_520e_init(struct em28xx *dev)
 				regs[i].r, regs[i].len);
 };
 
-static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
+static int em28xx_pctv_290e_set_lna_gpio(struct em28xx *dev, u32 lna)
 {
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
-	struct em28xx *dev = i2c_bus->dev;
 #ifdef CONFIG_GPIOLIB_LEGACY
 	struct em28xx_dvb *dvb = dev->dvb;
 	int ret;
 	unsigned long flags;
 
-	if (c->lna == 1)
+	if (lna == 1)
 		flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */
 	else
 		flags = GPIOF_OUT_INIT_LOW; /* disable LNA */
@@ -761,11 +758,20 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
 	return ret;
 #else
 	dev_warn(&dev->intf->dev, "%s: LNA control is disabled (lna=%u)\n",
-		 KBUILD_MODNAME, c->lna);
+		 KBUILD_MODNAME, lna);
 	return 0;
 #endif
 }
 
+static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
+	struct em28xx *dev = i2c_bus->dev;
+
+	return em28xx_pctv_290e_set_lna_gpio(dev, c->lna);
+}
+
 static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)
 {
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
@@ -1920,19 +1926,10 @@ static int em28xx_dvb_init(struct em28xx *dev)
 				goto out_free;
 			}
 
-#ifdef CONFIG_GPIOLIB_LEGACY
 			/* enable LNA for DVB-T, DVB-T2 and DVB-C */
-			result = gpio_request_one(dvb->lna_gpio,
-						  GPIOF_OUT_INIT_LOW, NULL);
-			if (result)
-				dev_err(&dev->intf->dev,
-					"gpio request failed %d\n",
-					result);
-			else
-				gpio_free(dvb->lna_gpio);
+			em28xx_pctv_290e_set_lna_gpio(dev, 0);
 
-			result = 0; /* continue even set LNA fails */
-#endif
+			/* continue even set LNA fails */
 			dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
 		}
 
-- 
2.50.1