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Commit 5f6c821e authored by Pawan Kumar's avatar Pawan Kumar
Browse files

msm: mdss: add bus bandwidth request enable/disable during get/free buffer 



Enable bus bandwidth request during get/free buffer to ensure
iommu is in proper state while mapping/un-mapping any buffers.

Change-Id: I85cc74a666dbfd29abd26609cbdd3e968d1ecd01
Signed-off-by: default avatarPawan Kumar <pavaku@codeaurora.org>
parent 4ae3b6a5

drivers/video/msm/mdss/mdss_mdp_overlay.c

+5 −0
Original line number Diff line number Diff line
@@ -695,6 +695,7 @@ int mdss_mdp_overlay_get_buf(struct msm_fb_data_type *mfd, 
	if ((num_planes <= 0) || (num_planes > MAX_PLANES))

		return -EINVAL;



	mdss_bus_bandwidth_ctrl(1);

	memset(data, 0, sizeof(*data));

	for (i = 0; i < num_planes; i++) {

		data->p[i].flags = flags;
@@ -708,6 +709,7 @@ int mdss_mdp_overlay_get_buf(struct msm_fb_data_type *mfd, 
			break;

		}

	}

	mdss_bus_bandwidth_ctrl(0);



	data->num_planes = i;
@@ -717,8 +719,11 @@ int mdss_mdp_overlay_get_buf(struct msm_fb_data_type *mfd, 
int mdss_mdp_overlay_free_buf(struct mdss_mdp_data *data)

{

	int i;



	mdss_bus_bandwidth_ctrl(1);

	for (i = 0; i < data->num_planes && data->p[i].len; i++)

		mdss_mdp_put_img(&data->p[i]);

	mdss_bus_bandwidth_ctrl(0);



	data->num_planes = 0;