Errors from intel_ddi_init_hdmi_connector() can just mean "there's no HDMI" while we'll still want to continue with DP only. Handle the errors gracefully, but don't propagate. Clear the hdmi_reg which is used as a proxy to indicate the HDMI is initialized.
v2: Gracefully handle but do not propagate Cc: Sergey Senozhatsky <[email protected]> Cc: Ville Syrjala <[email protected]> Reported-and-tested-by: Sergey Senozhatsky <[email protected]> Closes: https://lore.kernel.org/r/[email protected] Reviewed-by: Sergey Senozhatsky <[email protected]> # v1 Signed-off-by: Jani Nikula <[email protected]> --- drivers/gpu/drm/i915/display/intel_ddi.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 21277cf8afef..2c4308506435 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -4757,7 +4757,16 @@ static int intel_ddi_init_hdmi_connector(struct intel_digital_port *dig_port) return -ENOMEM; dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); - intel_hdmi_init_connector(dig_port, connector); + + if (!intel_hdmi_init_connector(dig_port, connector)) { + /* + * HDMI connector init failures may just mean conflicting DDC + * pins or not having enough lanes. Handle them gracefully, but + * don't fail the entire DDI init. + */ + dig_port->hdmi.hdmi_reg = INVALID_MMIO_REG; + kfree(connector); + } return 0; } -- 2.39.5
