> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Gwan-
> gyeong Mun
> Sent: Monday, February 10, 2020 10:40 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: linux-fbdev@xxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Subject: [PATCH v6 14/18] 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
Looks good to me.
Reviewed-by: Uma Shankar <uma.shankar@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_lspcon.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> 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)
> --
> 2.25.0
>
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