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OMAP: DSS2: DSI: Get number of DSI data lanes using DSI_GNQ register

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On OMAP3, the DSI module has 2 data lanes. On OMAP4, DSI1 has 4 data lanes
and DSI2 has 2 data lanes. Introduce function dsi_get_num_data_lanes() which
returns the number of data lanes on the dsi interface, introduce function
dsi_get_num_data_lanes_dssdev() which returns the number of data lanes used by
the omap_dss_device connected to the lanes.

Use the DSI_GNQ register on OMAP4 to get the number of data lanes, modify
dsi.c to use the number of lanes and the extra data lanes on DSI1.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Archit Taneja 2011-05-16 15:17:08 +05:30 • committed by Tomi Valkeinen
commit 75d7247c07
4 changed files with 95 additions and 10 deletions
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4
include/video/omapdss.h
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@ -420,6 +420,10 @@ struct omap_dss_device {
u8 data1_pol;
u8 data2_lane;
u8 data2_pol;
u8 data3_lane;
u8 data3_pol;
u8 data4_lane;
u8 data4_pol;
int module;