drm/i915/hdmi: HDMI source product description infoframe support
Set an SPD infoframe if the sink supports it.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index d43cebd..226ba83 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -201,6 +201,21 @@
intel_set_infoframe(encoder, &avi_if);
}
+static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder)
+{
+ struct dip_infoframe spd_if;
+
+ memset(&spd_if, 0, sizeof(spd_if));
+ spd_if.type = DIP_TYPE_SPD;
+ spd_if.ver = DIP_VERSION_SPD;
+ spd_if.len = DIP_LEN_SPD;
+ strcpy(spd_if.body.spd.vn, "Intel");
+ strcpy(spd_if.body.spd.pd, "Integrated gfx");
+ spd_if.body.spd.sdi = DIP_SPD_PC;
+
+ intel_set_infoframe(encoder, &spd_if);
+}
+
static void intel_hdmi_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
@@ -245,6 +260,7 @@
POSTING_READ(intel_hdmi->sdvox_reg);
intel_hdmi_set_avi_infoframe(encoder);
+ intel_hdmi_set_spd_infoframe(encoder);
}
static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)