I just wrote the bits to define and pack HDMI vendor specific infoframe.
Port the host1x driver to use those so I can refactor the infoframe code
a bit more.
This changes the length of the infoframe payload from 6 to 5, which is
enough for the "frame packing" stereo format.
v2: Pimp up the commit message with the note about the length
(Ville Syrjälä)
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Cc: Terje Bergström <tbergstrom@xxxxxxxxxx>
Cc: linux-tegra@xxxxxxxxxxxxxxx
Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
---
drivers/gpu/host1x/drm/hdmi.c | 24 ++++--------------------
1 file changed, 4 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/host1x/drm/hdmi.c b/drivers/gpu/host1x/drm/hdmi.c
index 01097da..b548918 100644
--- a/drivers/gpu/host1x/drm/hdmi.c
+++ b/drivers/gpu/host1x/drm/hdmi.c
@@ -539,7 +539,7 @@ static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
{
- struct hdmi_vendor_infoframe frame;
+ struct hdmi_hdmi_infoframe frame;
unsigned long value;
u8 buffer[10];
ssize_t err;
@@ -551,26 +551,10 @@ static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
return;
}
- memset(&frame, 0, sizeof(frame));
+ hdmi_hdmi_infoframe_init(&frame);
+ frame.s3d_struct = HDMI_3D_STRUCTURE_FRAME_PACKING;
- frame.type = HDMI_INFOFRAME_TYPE_VENDOR;
- frame.version = 0x01;
- frame.length = 6;
-
- frame.data[0] = 0x03; /* regid0 */
- frame.data[1] = 0x0c; /* regid1 */
- frame.data[2] = 0x00; /* regid2 */
- frame.data[3] = 0x02 << 5; /* video format */
-
- /* TODO: 74 MHz limit? */
- if (1) {
- frame.data[4] = 0x00 << 4; /* 3D structure */
- } else {
- frame.data[4] = 0x08 << 4; /* 3D structure */
- frame.data[5] = 0x00 << 4; /* 3D ext. data */
- }
-
- err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
+ err = hdmi_hdmi_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack vendor infoframe: %zd\n",
err);
--
1.8.3.1
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