[PATCH 24/32] drm/amd/display: add set ips disable

[Zaeem Mohamed]

From: Chiawen Huang <chiawen.huang at amd.com>

[How&Why]
Once IPS active, all the DCN resources are
not be allowed to access.
It needs to a function for 3rd party to
on/off IPS.

Reviewed-by: Duncan Ma <duncan.ma at amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed at amd.com>
Signed-off-by: Chiawen Huang <chiawen.huang at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 10 ++++++++++
 drivers/gpu/drm/amd/display/dc/dc.h      |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 0d97611c4817..25a498f65c1c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -5332,6 +5332,16 @@ bool dc_set_replay_allow_active(struct dc *dc, bool active)
 	return true;
 }
 
+/* set IPS disable state */
+bool dc_set_ips_disable(struct dc *dc, unsigned int disable_ips)
+{
+	dc_exit_ips_for_hw_access(dc);
+
+	dc->config.disable_ips = disable_ips;
+
+	return true;
+}
+
 void dc_allow_idle_optimizations_internal(struct dc *dc, bool allow, char const *caller_name)
 {
 	if (dc->debug.disable_idle_power_optimizations)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index a06015165a61..4e5c63ddb312 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -2467,6 +2467,8 @@ bool dc_set_psr_allow_active(struct dc *dc, bool enable);
 
 bool dc_set_replay_allow_active(struct dc *dc, bool active);
 
+bool dc_set_ips_disable(struct dc *dc, unsigned int disable_ips);
+
 void dc_z10_restore(const struct dc *dc);
 void dc_z10_save_init(struct dc *dc);
 
-- 
2.34.1