[PATCH] amdgpu/dc: remove wait_reg/wait_reg_func interfaces.

[Harry Wentland]

On 2017-09-27 11:29 PM, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
> 
> These aren't used in the tree anywhere, and there is a TODO.
> 
> Signed-off-by: Dave Airlie <airlied at redhat.com>
Reviewed-by: Harry Wentland <harry.wentland at amd.com>

> ---
>  drivers/gpu/drm/amd/display/dc/dm_services.h | 46 ----------------------------
>  1 file changed, 46 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h
> index c976e2a..8166027 100644
> --- a/drivers/gpu/drm/amd/display/dc/dm_services.h
> +++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
> @@ -236,52 +236,6 @@ unsigned int generic_reg_wait(const struct dc_context *ctx,
>  		block ## reg_num ## _ ## reg_name ## __ ## reg_field ## _MASK,\
>  		block ## reg_num ## _ ## reg_name ## __ ## reg_field ## __SHIFT)
>  
> -/* TODO get rid of this pos*/
> -static inline bool wait_reg_func(
> -	const struct dc_context *ctx,
> -	uint32_t addr,
> -	uint32_t mask,
> -	uint8_t shift,
> -	uint32_t condition_value,
> -	unsigned int interval_us,
> -	unsigned int timeout_us)
> -{
> -	uint32_t field_value;
> -	uint32_t reg_val;
> -	unsigned int count = 0;
> -
> -	if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
> -		timeout_us *= 655;  /* 6553 give about 30 second before time out */
> -
> -	do {
> -		/* try once without sleeping */
> -		if (count > 0) {
> -			if (interval_us >= 1000)
> -				msleep(interval_us/1000);
> -			else
> -				udelay(interval_us);
> -		}
> -		reg_val = dm_read_reg(ctx, addr);
> -		field_value = get_reg_field_value_ex(reg_val, mask, shift);
> -		count += interval_us;
> -
> -	} while (field_value != condition_value && count <= timeout_us);
> -
> -	ASSERT(count <= timeout_us);
> -
> -	return count <= timeout_us;
> -}
> -
> -#define wait_reg(ctx, inst_offset, reg_name, reg_field, condition_value)\
> -	wait_reg_func(\
> -		ctx,\
> -		mm##reg_name + inst_offset + DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX],\
> -		reg_name ## __ ## reg_field ## _MASK,\
> -		reg_name ## __ ## reg_field ## __SHIFT,\
> -		condition_value,\
> -		20000,\
> -		200000)
> -
>  /**************************************
>   * Power Play (PP) interfaces
>   **************************************/
>