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path: root/drivers/gpu/drm/rcar-du/rcar_du_group.c
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Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_group.c')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_group.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c
index 7b64282..1bdc0ee 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c
@@ -66,9 +66,21 @@ static void rcar_du_group_setup(struct rcar_du_group *rgrp)
rcar_du_group_write(rgrp, DEFR4, DEFR4_CODE);
rcar_du_group_write(rgrp, DEFR5, DEFR5_CODE | DEFR5_DEFE5);
- if (rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_EXT_CTRL_REGS))
+ if (rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_EXT_CTRL_REGS)) {
rcar_du_group_setup_defr8(rgrp);
+ /* Configure input dot clock routing. We currently hardcode the
+ * configuration to routing DOTCLKINn to DUn.
+ */
+ rcar_du_group_write(rgrp, DIDSR, DIDSR_CODE |
+ DIDSR_LCDS_DCLKIN(2) |
+ DIDSR_LCDS_DCLKIN(1) |
+ DIDSR_LCDS_DCLKIN(0) |
+ DIDSR_PDCS_CLK(2, 0) |
+ DIDSR_PDCS_CLK(1, 0) |
+ DIDSR_PDCS_CLK(0, 0));
+ }
+
/* Use DS1PR and DS2PR to configure planes priorities and connects the
* superposition 0 to DU0 pins. DU1 pins will be configured dynamically.
*/
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