On Mon, 2025-02-17 at 16:48 +0100, AngeloGioacchino Del Regno wrote: > External email : Please do not click links or open attachments until you have verified the sender or the content. > > > Implement the Automated Built-In Self-Test ABIST functionality > provided by the HDMIv2 IP and expose it through the "hdmi_abist" > debugfs file. > > Write "1" to this file to activate ABIST, or "0" to deactivate. > > The ABIST functionality can be used to validate that the HDMI > Transmitter itself works and that can output a valid image to > the HDMI Display that is connected. > > This is especially useful when trying to rule out any possible > issue that is related to the display pipeline, as the HDMI Tx > is always the last component; this means that HDMI ABIST can be > used even without prior display controller pipeline configuration. > > The expected output is a 100% color bar (rainbow) test pattern. Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx> > > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> > --- >
