From: Gwan-gyeong Mun Date: Thu, 14 May 2020 06:07:28 +0000 (+0300) Subject: drm/i915: Fix enabled infoframe states of lspcon X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=ce58867ee17afecda7917e74a0d10afd7138c6d4;p=uclinux-h8%2Flinux.git drm/i915: Fix enabled infoframe states of lspcon Compared to implementation of DP and HDMI's encoder->infoframes_enabled, the lspcon's implementation returns its active state. (we expect enabled infoframe states of HW.) It leads to pipe state mismatch error when ddi_get_config is called. Because the current implementation of lspcon is not ready to support readout infoframes, we need to return 0 here. In order to support readout to lspcon, we need to implement read_infoframe and infoframes_enabled. And set_infoframes also have to set an appropriate bit on crtc_state->infoframes.enable Cc: Ville Syrjälä Signed-off-by: Gwan-gyeong Mun Reviewed-by: Uma Shankar Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20200514060732.3378396-11-gwan-gyeong.mun@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index d807c5648c87..6ff7b226f0a1 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -522,7 +522,7 @@ u32 lspcon_infoframes_enabled(struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config) { /* FIXME actually read this from the hw */ - return enc_to_intel_lspcon(encoder)->active; + return 0; } void lspcon_resume(struct intel_lspcon *lspcon)