[Intel-gfx] [PATCH 1/2] drm/i915/sdvo: Fix multi function encoder stuff
Ville Syrjälä
ville.syrjala at linux.intel.com
Mon Sep 17 17:34:36 UTC 2018
On Mon, Sep 17, 2018 at 10:16:05AM -0700, Rodrigo Vivi wrote:
> On Mon, Sep 17, 2018 at 06:15:03PM +0300, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> >
> > SDVO encoders can have multiple different types of outputs hanging off
> > them. Currently the code tries to muck around with various is_foo
> > flags in the encoder to figure out which type its driving. That doesn't
> > work with atomic and other stuff, so let's nuke those flags and just
> > look at which type of connector we're actually dealing with.
> >
> > The is_hdmi we'll need as that's not discoverable via the output flags,
> > but we'll just move it under the connector.
> >
> > We'll also move the sdvo fixed mode handling out from the .get_modes()
> > hook into the sdvo lvds init function so that we can bail out properly
> > if there is no fixed mode to be found.
>
> I wondered if this last part didn't deserved a separated patch. But not sure
> how chicken-egg issue this could cause so maybe the same patch is better
> indeed...
There are both chickens and eggs in there for sure. I suppose it might
have been possible to handle it by clearing the LVDS bit from
output_flag if we fail to find the mode. But then we'd be left with
an LVDS connector without the flag and I'm not quite sure where the
code would lead if we ever tried to use it. Although one can argue
that the current code already has that same issue, maybe.
>
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
>
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > ---
> > drivers/gpu/drm/i915/intel_sdvo.c | 101 +++++++++++++++++---------------------
> > 1 file changed, 44 insertions(+), 57 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
> > index 812fe7b06f87..701372e512a8 100644
> > --- a/drivers/gpu/drm/i915/intel_sdvo.c
> > +++ b/drivers/gpu/drm/i915/intel_sdvo.c
> > @@ -99,31 +99,12 @@ struct intel_sdvo {
> > */
> > uint16_t hotplug_active;
> >
> > - /**
> > - * This is set if we're going to treat the device as TV-out.
> > - *
> > - * While we have these nice friendly flags for output types that ought
> > - * to decide this for us, the S-Video output on our HDMI+S-Video card
> > - * shows up as RGB1 (VGA).
> > - */
> > - bool is_tv;
> > -
> > enum port port;
> >
> > - /**
> > - * This is set if we treat the device as HDMI, instead of DVI.
> > - */
> > - bool is_hdmi;
> > bool has_hdmi_monitor;
> > bool has_hdmi_audio;
> > bool rgb_quant_range_selectable;
> >
> > - /**
> > - * This is set if we detect output of sdvo device as LVDS and
> > - * have a valid fixed mode to use with the panel.
> > - */
> > - bool is_lvds;
> > -
> > /**
> > * This is sdvo fixed pannel mode pointer
> > */
> > @@ -172,6 +153,11 @@ struct intel_sdvo_connector {
> >
> > /* this is to get the range of margin.*/
> > u32 max_hscan, max_vscan;
> > +
> > + /**
> > + * This is set if we treat the device as HDMI, instead of DVI.
> > + */
> > + bool is_hdmi;
> > };
> >
> > struct intel_sdvo_connector_state {
> > @@ -766,6 +752,7 @@ static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
> >
> > static bool
> > intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
> > + struct intel_sdvo_connector *intel_sdvo_connector,
> > uint16_t clock,
> > uint16_t width,
> > uint16_t height)
> > @@ -778,7 +765,7 @@ intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
> > args.height = height;
> > args.interlace = 0;
> >
> > - if (intel_sdvo->is_lvds &&
> > + if (IS_LVDS(intel_sdvo_connector) &&
> > (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
> > intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
> > args.scaled = 1;
> > @@ -1067,6 +1054,7 @@ intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
> > */
> > static bool
> > intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
> > + struct intel_sdvo_connector *intel_sdvo_connector,
> > const struct drm_display_mode *mode,
> > struct drm_display_mode *adjusted_mode)
> > {
> > @@ -1077,6 +1065,7 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
> > return false;
> >
> > if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
> > + intel_sdvo_connector,
> > mode->clock / 10,
> > mode->hdisplay,
> > mode->vdisplay))
> > @@ -1127,6 +1116,8 @@ static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
> > struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
> > struct intel_sdvo_connector_state *intel_sdvo_state =
> > to_intel_sdvo_connector_state(conn_state);
> > + struct intel_sdvo_connector *intel_sdvo_connector =
> > + to_intel_sdvo_connector(conn_state->connector);
> > struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
> > struct drm_display_mode *mode = &pipe_config->base.mode;
> >
> > @@ -1142,20 +1133,22 @@ static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
> > * timings, even though this isn't really the right place in
> > * the sequence to do it. Oh well.
> > */
> > - if (intel_sdvo->is_tv) {
> > + if (IS_TV(intel_sdvo_connector)) {
> > if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
> > return false;
> >
> > (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
> > + intel_sdvo_connector,
> > mode,
> > adjusted_mode);
> > pipe_config->sdvo_tv_clock = true;
> > - } else if (intel_sdvo->is_lvds) {
> > + } else if (IS_LVDS(intel_sdvo_connector)) {
> > if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
> > intel_sdvo->sdvo_lvds_fixed_mode))
> > return false;
> >
> > (void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
> > + intel_sdvo_connector,
> > mode,
> > adjusted_mode);
> > }
> > @@ -1194,11 +1187,11 @@ static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
> > }
> >
> > /* Clock computation needs to happen after pixel multiplier. */
> > - if (intel_sdvo->is_tv)
> > + if (IS_TV(intel_sdvo_connector))
> > i9xx_adjust_sdvo_tv_clock(pipe_config);
> >
> > /* Set user selected PAR to incoming mode's member */
> > - if (intel_sdvo->is_hdmi)
> > + if (intel_sdvo_connector->is_hdmi)
> > adjusted_mode->picture_aspect_ratio = conn_state->picture_aspect_ratio;
> >
> > return true;
> > @@ -1275,6 +1268,8 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
> > const struct drm_display_mode *adjusted_mode = &crtc_state->base.adjusted_mode;
> > const struct intel_sdvo_connector_state *sdvo_state =
> > to_intel_sdvo_connector_state(conn_state);
> > + const struct intel_sdvo_connector *intel_sdvo_connector =
> > + to_intel_sdvo_connector(conn_state->connector);
> > const struct drm_display_mode *mode = &crtc_state->base.mode;
> > struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder);
> > u32 sdvox;
> > @@ -1304,7 +1299,7 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
> > return;
> >
> > /* lvds has a special fixed output timing. */
> > - if (intel_sdvo->is_lvds)
> > + if (IS_LVDS(intel_sdvo_connector))
> > intel_sdvo_get_dtd_from_mode(&output_dtd,
> > intel_sdvo->sdvo_lvds_fixed_mode);
> > else
> > @@ -1325,13 +1320,13 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
> > } else
> > intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
> >
> > - if (intel_sdvo->is_tv &&
> > + if (IS_TV(intel_sdvo_connector) &&
> > !intel_sdvo_set_tv_format(intel_sdvo, conn_state))
> > return;
> >
> > intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
> >
> > - if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
> > + if (IS_TV(intel_sdvo_connector) || IS_LVDS(intel_sdvo_connector))
> > input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
> > if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
> > DRM_INFO("Setting input timings on %s failed\n",
> > @@ -1630,6 +1625,8 @@ intel_sdvo_mode_valid(struct drm_connector *connector,
> > struct drm_display_mode *mode)
> > {
> > struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
> > + struct intel_sdvo_connector *intel_sdvo_connector =
> > + to_intel_sdvo_connector(connector);
> > int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
> >
> > if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
> > @@ -1644,7 +1641,7 @@ intel_sdvo_mode_valid(struct drm_connector *connector,
> > if (mode->clock > max_dotclk)
> > return MODE_CLOCK_HIGH;
> >
> > - if (intel_sdvo->is_lvds) {
> > + if (IS_LVDS(intel_sdvo_connector)) {
> > if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
> > return MODE_PANEL;
> >
> > @@ -1759,6 +1756,8 @@ static enum drm_connector_status
> > intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
> > {
> > struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
> > + struct intel_sdvo_connector *intel_sdvo_connector =
> > + to_intel_sdvo_connector(connector);
> > enum drm_connector_status status;
> > struct edid *edid;
> >
> > @@ -1797,7 +1796,7 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
> > /* DDC bus is shared, match EDID to connector type */
> > if (edid->input & DRM_EDID_INPUT_DIGITAL) {
> > status = connector_status_connected;
> > - if (intel_sdvo->is_hdmi) {
> > + if (intel_sdvo_connector->is_hdmi) {
> > intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
> > intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
> > intel_sdvo->rgb_quant_range_selectable =
> > @@ -1875,17 +1874,6 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
> > ret = connector_status_connected;
> > }
> >
> > - /* May update encoder flag for like clock for SDVO TV, etc.*/
> > - if (ret == connector_status_connected) {
> > - intel_sdvo->is_tv = false;
> > - intel_sdvo->is_lvds = false;
> > -
> > - if (response & SDVO_TV_MASK)
> > - intel_sdvo->is_tv = true;
> > - if (response & SDVO_LVDS_MASK)
> > - intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
> > - }
> > -
> > return ret;
> > }
> >
> > @@ -2054,16 +2042,6 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
> > * arranged in priority order.
> > */
> > intel_ddc_get_modes(connector, &intel_sdvo->ddc);
> > -
> > - list_for_each_entry(newmode, &connector->probed_modes, head) {
> > - if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
> > - intel_sdvo->sdvo_lvds_fixed_mode =
> > - drm_mode_duplicate(connector->dev, newmode);
> > -
> > - intel_sdvo->is_lvds = true;
> > - break;
> > - }
> > - }
> > }
> >
> > static int intel_sdvo_get_modes(struct drm_connector *connector)
> > @@ -2555,7 +2533,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
> > if (INTEL_GEN(dev_priv) >= 4 &&
> > intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
> > connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
> > - intel_sdvo->is_hdmi = true;
> > + intel_sdvo_connector->is_hdmi = true;
> > }
> >
> > if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
> > @@ -2563,7 +2541,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
> > return false;
> > }
> >
> > - if (intel_sdvo->is_hdmi)
> > + if (intel_sdvo_connector->is_hdmi)
> > intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
> >
> > return true;
> > @@ -2591,8 +2569,6 @@ intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
> > intel_sdvo->controlled_output |= type;
> > intel_sdvo_connector->output_flag = type;
> >
> > - intel_sdvo->is_tv = true;
> > -
> > if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
> > kfree(intel_sdvo_connector);
> > return false;
> > @@ -2654,6 +2630,7 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
> > struct drm_connector *connector;
> > struct intel_connector *intel_connector;
> > struct intel_sdvo_connector *intel_sdvo_connector;
> > + struct drm_display_mode *mode;
> >
> > DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
> >
> > @@ -2682,6 +2659,19 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
> > if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
> > goto err;
> >
> > + intel_sdvo_get_lvds_modes(connector);
> > +
> > + list_for_each_entry(mode, &connector->probed_modes, head) {
> > + if (mode->type & DRM_MODE_TYPE_PREFERRED) {
> > + intel_sdvo->sdvo_lvds_fixed_mode =
> > + drm_mode_duplicate(connector->dev, mode);
> > + break;
> > + }
> > + }
> > +
> > + if (!intel_sdvo->sdvo_lvds_fixed_mode)
> > + goto err;
> > +
> > return true;
> >
> > err:
> > @@ -2692,9 +2682,6 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
> > static bool
> > intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
> > {
> > - intel_sdvo->is_tv = false;
> > - intel_sdvo->is_lvds = false;
> > -
> > /* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
> >
> > if (flags & SDVO_OUTPUT_TMDS0)
> > --
> > 2.16.4
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel
More information about the Intel-gfx
mailing list