Enable CMTG through control register.
Signed-off-by: Animesh Manna <[email protected]>
---
drivers/gpu/drm/i915/display/intel_cmtg.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_cmtg.c
b/drivers/gpu/drm/i915/display/intel_cmtg.c
index d5793842815f..fb2ce22d136b 100644
--- a/drivers/gpu/drm/i915/display/intel_cmtg.c
+++ b/drivers/gpu/drm/i915/display/intel_cmtg.c
@@ -257,6 +257,20 @@ static void intel_cpu_cmtg_transcoder_set_m_n(const struct
intel_crtc_state *crt
intel_de_write(display, TRANS_LINKN1_CMTG(cpu_transcoder), m_n->link_n);
}
+static void intel_cmtg_ctl_enable(const struct intel_crtc_state *crtc_state)
+{
+ struct intel_display *display = to_intel_display(crtc_state);
+ enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+ u32 val = 0;
+
+ val = intel_de_read(display, TRANS_CMTG_CTL(cpu_transcoder));
+
+ val |= CMTG_ENABLE;
+
+ intel_de_write(display, TRANS_CMTG_CTL(cpu_transcoder), val);
+ drm_dbg_kms(display->drm, "CMTG enabled\n");
+}
+
void intel_cmtg_enable(const struct intel_crtc_state *crtc_state)
{
struct intel_display *display = to_intel_display(crtc_state);
@@ -277,4 +291,7 @@ void intel_cmtg_enable(const struct intel_crtc_state
*crtc_state)
/* Program Cmtg Sync to Port Sync, TRANS_CMTG_CTL */
intel_de_rmw(display, TRANS_CMTG_CTL(cpu_transcoder),
CMTG_SYNC_TO_PORT, CMTG_SYNC_TO_PORT);
+
+ /* Program Enable Cmtg */
+ intel_cmtg_ctl_enable(crtc_state);
}
--
2.29.0
