1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/dvo_sil164.c b/drivers/gpu/drm/i915/dvo_sil164.c
index cc24c1cabecd..4debd32e3e4c 100644
--- a/drivers/gpu/drm/i915/dvo_sil164.c
+++ b/drivers/gpu/drm/i915/dvo_sil164.c
@@ -226,6 +226,21 @@ static void sil164_dpms(struct intel_dvo_device *dvo, bool enable)
         return;
 }
 
+static bool sil164_get_hw_state(struct intel_dvo_device *dvo)
+{
+        int ret;
+        unsigned char ch;
+
+        ret = sil164_readb(dvo, SIL164_REG8, &ch);
+        if (ret == false)
+                return false;
+
+        if (ch & SIL164_8_PD)
+                return true;
+        else
+                return false;
+}
+
 static void sil164_dump_regs(struct intel_dvo_device *dvo)
 {
         uint8_t val;
@@ -258,6 +273,7 @@ struct intel_dvo_dev_ops sil164_ops = {
         .mode_valid = sil164_mode_valid,
         .mode_set = sil164_mode_set,
         .dpms = sil164_dpms,
+        .get_hw_state = sil164_get_hw_state,
         .dump_regs = sil164_dump_regs,
         .destroy = sil164_destroy,
 };