From 81f287da73377eb408de6879aa6c54c6d57dc1db Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Sun, 18 Jul 2010 20:26:37 -0300 Subject: [PATCH] V4L/DVB: cx23885: For CX23888 IR, configure the IO pin mux IR pins explcitly Explicitly configure the IR Tx and IR Rx pins to be driven by the IR Rx and Tx pads from the AV core for CX23888 IR. For the HVR-1850 and HVR-1290 configure the IR Tx level inversion, so the Tx LED is off when idle. Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 31 +++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index 29eea8d3613b..e9586743692b 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -962,6 +962,24 @@ void cx23885_gpio_setup(struct cx23885_dev *dev) int cx23885_ir_init(struct cx23885_dev *dev) { + static struct v4l2_subdev_io_pin_config ir_pin_cfg[] = { + { + .flags = V4L2_SUBDEV_IO_PIN_INPUT, + .pin = CX23885_PIN_IR_RX_GPIO19, + .function = CX23885_PAD_IR_RX, + .value = 0, + .strength = CX25840_PIN_DRIVE_MEDIUM, + }, { + .flags = V4L2_SUBDEV_IO_PIN_OUTPUT, + .pin = CX23885_PIN_IR_TX_GPIO20, + .function = CX23885_PAD_IR_TX, + .value = 0, + .strength = CX25840_PIN_DRIVE_MEDIUM, + } + }; + const size_t ir_pin_cfg_count = ARRAY_SIZE(ir_pin_cfg); + + struct v4l2_subdev_ir_parameters params; int ret = 0; switch (dev->board) { case CX23885_BOARD_HAUPPAUGE_HVR1250: @@ -982,7 +1000,20 @@ int cx23885_ir_init(struct cx23885_dev *dev) if (ret) break; dev->sd_ir = cx23885_find_hw(dev, CX23885_HW_888_IR); + v4l2_subdev_call(dev->sd_cx25840, core, s_io_pin_config, + ir_pin_cfg_count, ir_pin_cfg); dev->pci_irqmask |= PCI_MSK_IR; + /* + * For these boards we need to invert the Tx output via the + * IR controller to have the LED off while idle + */ + v4l2_subdev_call(dev->sd_ir, ir, tx_g_parameters, ¶ms); + params.enable = false; + params.shutdown = false; + params.invert_level = true; + v4l2_subdev_call(dev->sd_ir, ir, tx_s_parameters, ¶ms); + params.shutdown = true; + v4l2_subdev_call(dev->sd_ir, ir, tx_s_parameters, ¶ms); break; case CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP: request_module("ir-kbd-i2c"); -- 2.20.1