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Commit 4fd9d5d8 authored by Camus Wong's avatar Camus Wong
Browse files

msm: fb: aggregate buffer length for each sg node 



when mapping the MDP framebuffer, driver needs to aggregate all
buffer length from each sg node.

CRs-Fixed: 996243
Change-Id: Ia4825e96b2e12f2328c9cc3197051f5e47c4daff
Signed-off-by: default avatarCamus Wong <camusw@codeaurora.org>
parent 25f64653

drivers/video/msm/mdss/mdss_mdp_util.c

+8 −1
Original line number Diff line number Diff line
@@ -1396,6 +1396,9 @@ static int mdss_mdp_map_buffer(struct mdss_mdp_img_data *data, bool rotator, 
	int ret = -EINVAL;

	int domain;

	struct mdss_data_type *mdata = mdss_mdp_get_mdata();

	struct scatterlist *sg;

	unsigned int i;

	struct sg_table *table;



	if (data->addr && data->len)

		return 0;
@@ -1417,7 +1420,11 @@ static int mdss_mdp_map_buffer(struct mdss_mdp_img_data *data, bool rotator, 
			data->mapped = true;

		} else {

			data->addr = sg_phys(data->srcp_table->sgl);

			data->len = data->srcp_table->sgl->length;

			data->len = 0;

			table = data->srcp_table;

			for_each_sg(table->sgl, sg, table->nents, i) {

				data->len += sg->length;

			}

			ret = 0;

		}

	}