From ff9d1c0143e2eaf48f8e560aaa396751ef5c3358 Mon Sep 17 00:00:00 2001 From: Brad Love Date: Tue, 8 May 2018 17:20:20 -0400 Subject: [PATCH] media: cx23885: Add some missing register documentation Document what these two register calls are doing. Signed-off-by: Brad Love Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/cx23885/cx23885-core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c index 11a1dcee69f3..94b996ff12a9 100644 --- a/drivers/media/pci/cx23885/cx23885-core.c +++ b/drivers/media/pci/cx23885/cx23885-core.c @@ -1464,8 +1464,15 @@ int cx23885_start_dma(struct cx23885_tsport *port, reg = reg | 0xa; cx_write(PAD_CTRL, reg); - /* FIXME and these two registers should be documented. */ + /* Sets MOE_CLK_DIS to disable MoE clock */ + /* sets MCLK_DLY_SEL/BCLK_DLY_SEL to 1 buffer delay each */ cx_write(CLK_DELAY, cx_read(CLK_DELAY) | 0x80000011); + + /* ALT_GPIO_ALT_SET: GPIO[0] + * IR_ALT_TX_SEL: GPIO[1] + * GPIO1_ALT_SEL: VIP_656_DATA[0] + * GPIO0_ALT_SEL: VIP_656_CLK + */ cx_write(ALT_PIN_OUT_SEL, 0x10100045); }