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@@ -81,6 +81,7 @@ struct em28xx_dvb {
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int (*gate_ctrl)(struct dvb_frontend *, int);
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struct semaphore pll_mutex;
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bool dont_attach_fe1;
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+ int lna_gpio;
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};
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@@ -568,6 +569,33 @@ static void pctv_520e_init(struct em28xx *dev)
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i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
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};
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+static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe, int val)
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+{
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+ struct em28xx *dev = fe->dvb->priv;
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+#ifdef CONFIG_GPIOLIB
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+ struct em28xx_dvb *dvb = dev->dvb;
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+ int ret;
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+ unsigned long flags;
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+
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+ if (val)
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+ flags = GPIOF_OUT_INIT_LOW;
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+ else
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+ flags = GPIOF_OUT_INIT_HIGH;
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+
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+ ret = gpio_request_one(dvb->lna_gpio, flags, NULL);
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+ if (ret)
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+ em28xx_errdev("gpio request failed %d\n", ret);
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+ else
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+ gpio_free(dvb->lna_gpio);
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+
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+ return ret;
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+#else
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+ dev_warn(&dev->udev->dev, "%s: LNA control is disabled\n",
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+ KBUILD_MODNAME);
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+ return 0;
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+#endif
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+}
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+
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static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
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{
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/* Values extracted from a USB trace of the Terratec Windows driver */
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@@ -809,7 +837,7 @@ static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
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static int em28xx_dvb_init(struct em28xx *dev)
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{
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- int result = 0, mfe_shared = 0, gpio_chip_base;
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+ int result = 0, mfe_shared = 0;
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struct em28xx_dvb *dvb;
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if (!dev->board.has_dvb) {
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@@ -958,7 +986,7 @@ static int em28xx_dvb_init(struct em28xx *dev)
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dvb->fe[0] = dvb_attach(cxd2820r_attach,
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&em28xx_cxd2820r_config,
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&dev->i2c_adap,
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- &gpio_chip_base);
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+ &dvb->lna_gpio);
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if (dvb->fe[0]) {
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/* FE 0 attach tuner */
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if (!dvb_attach(tda18271_attach,
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@@ -973,15 +1001,18 @@ static int em28xx_dvb_init(struct em28xx *dev)
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}
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}
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+#ifdef CONFIG_GPIOLIB
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/* enable LNA for DVB-T, DVB-T2 and DVB-C */
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- result = gpio_request_one(gpio_chip_base, GPIOF_INIT_LOW,
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- "LNA");
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+ result = gpio_request_one(dvb->lna_gpio, GPIOF_OUT_INIT_LOW,
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+ NULL);
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if (result)
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em28xx_errdev("gpio request failed %d\n", result);
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else
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- gpio_free(gpio_chip_base);
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+ gpio_free(dvb->lna_gpio);
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result = 0; /* continue even set LNA fails */
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+#endif
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+ dvb->fe[0]->ops.set_lna = em28xx_pctv_290e_set_lna;
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break;
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case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
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{
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