From: Antti Palosaari <crope@iki.fi>
Date: Fri, 17 Aug 2012 00:07:23 +0000 (-0300)
Subject: [media] cxd2820r: use static GPIO config when GPIOLIB is undefined
X-Git-Tag: firefly_0821_release~3680^2~275^2~1066
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a36a66d7aaa6468a91941ffcfb6d324f28825910;p=firefly-linux-kernel-4.4.55.git

[media] cxd2820r: use static GPIO config when GPIOLIB is undefined

It is fallback condition as GPIOLIB seems to be disabled by default.
Better solution is needed, maybe GPIOLIB could be enabled by default?

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c
index 4bd42f20d5b3..42648643693e 100644
--- a/drivers/media/dvb-frontends/cxd2820r_core.c
+++ b/drivers/media/dvb-frontends/cxd2820r_core.c
@@ -567,7 +567,7 @@ static int cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
 static void cxd2820r_release(struct dvb_frontend *fe)
 {
 	struct cxd2820r_priv *priv = fe->demodulator_priv;
-	int ret;
+	int uninitialized_var(ret); /* silence compiler warning */
 
 	dev_dbg(&priv->i2c->dev, "%s\n", __func__);
 
@@ -688,9 +688,9 @@ struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
 {
 	struct cxd2820r_priv *priv;
 	int ret;
-	u8 tmp;
+	u8 tmp, gpio[GPIO_COUNT];
 
-	priv = kzalloc(sizeof (struct cxd2820r_priv), GFP_KERNEL);
+	priv = kzalloc(sizeof(struct cxd2820r_priv), GFP_KERNEL);
 	if (!priv) {
 		ret = -ENOMEM;
 		dev_err(&i2c->dev, "%s: kzalloc() failed\n",
@@ -699,7 +699,9 @@ struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
 	}
 
 	priv->i2c = i2c;
-	memcpy(&priv->cfg, cfg, sizeof (struct cxd2820r_config));
+	memcpy(&priv->cfg, cfg, sizeof(struct cxd2820r_config));
+	memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(struct dvb_frontend_ops));
+	priv->fe.demodulator_priv = priv;
 
 	priv->bank[0] = priv->bank[1] = 0xff;
 	ret = cxd2820r_rd_reg(priv, 0x000fd, &tmp);
@@ -707,9 +709,9 @@ struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
 	if (ret || tmp != 0xe1)
 		goto error;
 
-#ifdef CONFIG_GPIOLIB
-	/* add GPIOs */
 	if (gpio_chip_base) {
+#ifdef CONFIG_GPIOLIB
+		/* add GPIOs */
 		priv->gpio_chip.label = KBUILD_MODNAME;
 		priv->gpio_chip.dev = &priv->i2c->dev;
 		priv->gpio_chip.owner = THIS_MODULE;
@@ -728,11 +730,20 @@ struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg,
 				priv->gpio_chip.base);
 
 		*gpio_chip_base = priv->gpio_chip.base;
-	}
+#else
+		/*
+		 * Use static GPIO configuration if GPIOLIB is undefined.
+		 * This is fallback condition.
+		 */
+		gpio[0] = (*gpio_chip_base >> 0) & 0x07;
+		gpio[1] = (*gpio_chip_base >> 3) & 0x07;
+		gpio[2] = 0;
+		ret = cxd2820r_gpio(&priv->fe, gpio);
+		if (ret)
+			goto error;
 #endif
+	}
 
-	memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof (struct dvb_frontend_ops));
-	priv->fe.demodulator_priv = priv;
 	return &priv->fe;
 error:
 	dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 3e5c42de6359..0ca3e05992bf 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -983,6 +983,9 @@ static int em28xx_dvb_init(struct em28xx *dev)
 				   &dev->i2c_adap, &kworld_a340_config);
 		break;
 	case EM28174_BOARD_PCTV_290E:
+		/* set default GPIO0 for LNA, used if GPIOLIB is undefined */
+		dvb->lna_gpio = CXD2820R_GPIO_E | CXD2820R_GPIO_O |
+				CXD2820R_GPIO_L;
 		dvb->fe[0] = dvb_attach(cxd2820r_attach,
 					&em28xx_cxd2820r_config,
 					&dev->i2c_adap,