drm/radeon/kms: get HPD info for connectors

This populates the connectors with HPD (Hot Plug Detect)
information.  This will be used in subsequent patches
for automatic digital monitor connect/disconnect handling.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index a2633628dbb8..61b90343f794 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -347,6 +347,29 @@ struct radeon_connector_atom_dig {
         int dp_lane_count;
 };
 
+struct radeon_gpio_rec {
+        bool valid;
+        u8 id;
+        u32 reg;
+        u32 mask;
+};
+
+enum radeon_hpd_id {
+        RADEON_HPD_NONE = 0,
+        RADEON_HPD_1,
+        RADEON_HPD_2,
+        RADEON_HPD_3,
+        RADEON_HPD_4,
+        RADEON_HPD_5,
+        RADEON_HPD_6,
+};
+
+struct radeon_hpd {
+        enum radeon_hpd_id hpd;
+        u8 plugged_state;
+        struct radeon_gpio_rec gpio;
+};
+
 struct radeon_connector {
         struct drm_connector base;
         uint32_t connector_id;
@@ -361,6 +384,7 @@ struct radeon_connector {
         void *con_priv;
         bool dac_load_detect;
         uint16_t connector_object_id;
+        struct radeon_hpd hpd;
 };
 
 struct radeon_framebuffer {