mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
[media] nuvoton-cir: fix clearing wake fifo
At least on NVT6779D clearing the wake fifo works in learning mode only (although this condition is not mentioned in the chip spec). Setting the clear fifo bit has no effect in wake up mode. Even if clearing the wake fifo should work in wake up mode on other chips this workaround doesn't hurt. If needed the caller of nvt_clear_cir_wake_fifo has to take care of locking. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
parent
a17ede9ac1
commit
e1a7d981cf
1 changed files with 9 additions and 1 deletions
|
@ -370,11 +370,19 @@ static void nvt_clear_cir_fifo(struct nvt_dev *nvt)
|
|||
/* clear out the hardware's cir wake rx fifo */
|
||||
static void nvt_clear_cir_wake_fifo(struct nvt_dev *nvt)
|
||||
{
|
||||
u8 val;
|
||||
u8 val, config;
|
||||
|
||||
config = nvt_cir_wake_reg_read(nvt, CIR_WAKE_IRCON);
|
||||
|
||||
/* clearing wake fifo works in learning mode only */
|
||||
nvt_cir_wake_reg_write(nvt, config & ~CIR_WAKE_IRCON_MODE0,
|
||||
CIR_WAKE_IRCON);
|
||||
|
||||
val = nvt_cir_wake_reg_read(nvt, CIR_WAKE_FIFOCON);
|
||||
nvt_cir_wake_reg_write(nvt, val | CIR_WAKE_FIFOCON_RXFIFOCLR,
|
||||
CIR_WAKE_FIFOCON);
|
||||
|
||||
nvt_cir_wake_reg_write(nvt, config, CIR_WAKE_IRCON);
|
||||
}
|
||||
|
||||
/* clear out the hardware's cir tx fifo */
|
||||
|
|
Loading…
Reference in a new issue