diff options
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-cards.c | 12 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-core.c | 27 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 6 |
3 files changed, 2 insertions, 43 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c index 6ee4bed730dd..dc65742c4bbc 100644 --- a/drivers/media/usb/em28xx/em28xx-cards.c +++ b/drivers/media/usb/em28xx/em28xx-cards.c @@ -2896,10 +2896,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, em28xx_set_model(dev); - /* Set the default GPO/GPIO for legacy devices */ - dev->reg_gpo_num = EM2880_R04_GPO; - dev->reg_gpio_num = EM2820_R08_GPIO_CTRL; - dev->wait_after_write = 5; /* Based on the Chip ID, set the device configuration */ @@ -2947,13 +2943,11 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, break; case CHIP_ID_EM2874: chip_name = "em2874"; - dev->reg_gpio_num = EM2874_R80_GPIO_P0_CTRL; dev->wait_after_write = 0; dev->eeprom_addrwidth_16bit = 1; break; case CHIP_ID_EM28174: chip_name = "em28174"; - dev->reg_gpio_num = EM2874_R80_GPIO_P0_CTRL; dev->wait_after_write = 0; dev->eeprom_addrwidth_16bit = 1; break; @@ -2963,7 +2957,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, break; case CHIP_ID_EM2884: chip_name = "em2884"; - dev->reg_gpio_num = EM2874_R80_GPIO_P0_CTRL; dev->wait_after_write = 0; dev->eeprom_addrwidth_16bit = 1; break; @@ -2992,11 +2985,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, return 0; } - /* Prepopulate cached GPO register content */ - retval = em28xx_read_reg(dev, dev->reg_gpo_num); - if (retval >= 0) - dev->reg_gpo = retval; - em28xx_pre_card_setup(dev); if (!dev->board.is_em2800) { diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c index a802128ce9c5..fc157af5234a 100644 --- a/drivers/media/usb/em28xx/em28xx-core.c +++ b/drivers/media/usb/em28xx/em28xx-core.c @@ -193,23 +193,7 @@ int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len) { - int rc; - - rc = em28xx_write_regs_req(dev, USB_REQ_GET_STATUS, reg, buf, len); - - /* Stores GPO/GPIO values at the cache, if changed - Only write values should be stored, since input on a GPIO - register will return the input bits. - Not sure what happens on reading GPO register. - */ - if (rc >= 0) { - if (reg == dev->reg_gpo_num) - dev->reg_gpo = buf[0]; - else if (reg == dev->reg_gpio_num) - dev->reg_gpio = buf[0]; - } - - return rc; + return em28xx_write_regs_req(dev, USB_REQ_GET_STATUS, reg, buf, len); } EXPORT_SYMBOL_GPL(em28xx_write_regs); @@ -231,14 +215,7 @@ int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, int oldval; u8 newval; - /* Uses cache for gpo/gpio registers */ - if (reg == dev->reg_gpo_num) - oldval = dev->reg_gpo; - else if (reg == dev->reg_gpio_num) - oldval = dev->reg_gpio; - else - oldval = em28xx_read_reg(dev, reg); - + oldval = em28xx_read_reg(dev, reg); if (oldval < 0) return oldval; diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index 59a95802aa68..205e9038b1c0 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -637,12 +637,6 @@ struct em28xx { enum em28xx_mode mode; - /* register numbers for GPO/GPIO registers */ - u16 reg_gpo_num, reg_gpio_num; - - /* Caches GPO and GPIO registers */ - unsigned char reg_gpo, reg_gpio; - /* Snapshot button */ char snapshot_button_path[30]; /* path of the input dev */ struct input_dev *sbutton_input_dev; |