<html><body><p> <pre> 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@mediatek.com> > > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> > --- > </pre> </p></body></html><pre>************* MEDIATEK Confidentiality Notice ******************** The information contained in this e-mail message (including any attachments) may be confidential, proprietary, privileged, or otherwise exempt from disclosure under applicable laws. It is intended to be conveyed only to the designated recipient(s). Any use, dissemination, distribution, printing, retaining or copying of this e-mail (including its attachments) by unintended recipient(s) is strictly prohibited and may be unlawful. If you are not an intended recipient of this e-mail, or believe that you have received this e-mail in error, please notify the sender immediately (by replying to this e-mail), delete any and all copies of this e-mail (including any attachments) from your system, and do not disclose the content of this e-mail to any other person. Thank you! </pre>