[PATCH v4 1/3] drm/tidss: oldi: Add property to identify OLDI supported VP

[Jayesh Choudhary]

TIDSS should know which VP has OLDI output to avoid calling clock
functions for that VP as those are controlled by oldi driver. Add a
property "is_oldi_vp" to "tidss_device" structure for that. Mark it
'true' in tidss_oldi_init() and 'false' in tidss_oldi_deinit().

Fixes: 7246e0929945 ("drm/tidss: Add OLDI bridge support")
Reviewed-by: Devarsh Thakkar <devarsht@xxxxxx>
Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx>
---
 drivers/gpu/drm/tidss/tidss_drv.h  | 2 ++
 drivers/gpu/drm/tidss/tidss_oldi.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tidss/tidss_drv.h b/drivers/gpu/drm/tidss/tidss_drv.h
index 0ae24f645582..82beaaceadb3 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.h
+++ b/drivers/gpu/drm/tidss/tidss_drv.h
@@ -24,6 +24,8 @@ struct tidss_device {
 
 	const struct dispc_features *feat;
 	struct dispc_device *dispc;
+	bool is_oldi_vp[TIDSS_MAX_PORTS];
+
 
 	unsigned int num_crtcs;
 	struct drm_crtc *crtcs[TIDSS_MAX_PORTS];
diff --git a/drivers/gpu/drm/tidss/tidss_oldi.c b/drivers/gpu/drm/tidss/tidss_oldi.c
index b0f99656e87e..63e07c8edeaa 100644
--- a/drivers/gpu/drm/tidss/tidss_oldi.c
+++ b/drivers/gpu/drm/tidss/tidss_oldi.c
@@ -430,6 +430,7 @@ void tidss_oldi_deinit(struct tidss_device *tidss)
 	for (int i = 0; i < tidss->num_oldis; i++) {
 		if (tidss->oldis[i]) {
 			drm_bridge_remove(&tidss->oldis[i]->bridge);
+			tidss->is_oldi_vp[tidss->oldis[i]->parent_vp] = false;
 			tidss->oldis[i] = NULL;
 		}
 	}
@@ -579,6 +580,7 @@ int tidss_oldi_init(struct tidss_device *tidss)
 		oldi->bridge.timings = &default_tidss_oldi_timings;
 
 		tidss->oldis[tidss->num_oldis++] = oldi;
+		tidss->is_oldi_vp[oldi->parent_vp] = true;
 		oldi->tidss = tidss;
 
 		drm_bridge_add(&oldi->bridge);
-- 
2.34.1