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drm/i915: Populate encoder->devdata for DSI on icl+

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[ Upstream commit 14e591a193 ]

We now have some eDP+DSI dual panel systems floating around
where the DSI panel is the secondary LFP and thus needs to
consult "panel type 2" in VBT in order to locate all the
other panel type dependant stuff correctly.

To that end we need to pass in the devdata to
intel_bios_init_panel_late(), otherwise it'll just assume
we want the primary panel type. So let's try to just populate
the vbt.ports[] stuff and encoder->devdata for icl+ DSI
panels as well.

We can't do this on older platforms as there we risk a DSI
port aliasing with a HDMI/DP port, which is a totally legal
thing as the DSI ports live in their own little parallel
universe.

Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8016
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230207064337.18697-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit ba00eb6a4b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ville Syrjälä 2023-02-07 08:43:36 +02:00 committed by Greg Kroah-Hartman
parent bd61a84b5e
commit 783c225e91
2 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/gpu/drm/i915/display/icl_dsi.c
View file

@ -2053,7 +2053,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv)
/* attach connector to encoder */
intel_connector_attach_encoder(intel_connector, encoder);
intel_bios_init_panel_late(dev_priv, &intel_connector->panel, NULL, NULL);
encoder->devdata = intel_bios_encoder_data_lookup(dev_priv, port);
intel_bios_init_panel_late(dev_priv, &intel_connector->panel, encoder->devdata, NULL);
mutex_lock(&dev->mode_config.mutex);
intel_panel_add_vbt_lfp_fixed_mode(intel_connector);

15
drivers/gpu/drm/i915/display/intel_bios.c
View file

@ -2593,6 +2593,12 @@ intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata)
devdata->child.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR;
}
static bool
intel_bios_encoder_supports_dsi(const struct intel_bios_encoder_data *devdata)
{
return devdata->child.device_type & DEVICE_TYPE_MIPI_OUTPUT;
}
static int _intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata)
{
if (!devdata || devdata->i915->display.vbt.version < 158)
@ -2643,7 +2649,7 @@ static void print_ddi_port(const struct intel_bios_encoder_data *devdata,
{
struct drm_i915_private *i915 = devdata->i915;
const struct child_device_config *child = &devdata->child;
bool is_dvi, is_hdmi, is_dp, is_edp, is_crt, supports_typec_usb, supports_tbt;
bool is_dvi, is_hdmi, is_dp, is_edp, is_dsi, is_crt, supports_typec_usb, supports_tbt;
int dp_boost_level, dp_max_link_rate, hdmi_boost_level, hdmi_level_shift, max_tmds_clock;
is_dvi = intel_bios_encoder_supports_dvi(devdata);
@ -2651,13 +2657,14 @@ static void print_ddi_port(const struct intel_bios_encoder_data *devdata,
is_crt = intel_bios_encoder_supports_crt(devdata);
is_hdmi = intel_bios_encoder_supports_hdmi(devdata);
is_edp = intel_bios_encoder_supports_edp(devdata);
is_dsi = intel_bios_encoder_supports_dsi(devdata);
supports_typec_usb = intel_bios_encoder_supports_typec_usb(devdata);
supports_tbt = intel_bios_encoder_supports_tbt(devdata);
drm_dbg_kms(&i915->drm,
"Port %c VBT info: CRT:%d DVI:%d HDMI:%d DP:%d eDP:%d LSPCON:%d USB-Type-C:%d TBT:%d DSC:%d\n",
port_name(port), is_crt, is_dvi, is_hdmi, is_dp, is_edp,
"Port %c VBT info: CRT:%d DVI:%d HDMI:%d DP:%d eDP:%d DSI:%d LSPCON:%d USB-Type-C:%d TBT:%d DSC:%d\n",
port_name(port), is_crt, is_dvi, is_hdmi, is_dp, is_edp, is_dsi,
HAS_LSPCON(i915) && child->lspcon,
supports_typec_usb, supports_tbt,
devdata->dsc != NULL);
@ -2702,6 +2709,8 @@ static void parse_ddi_port(struct intel_bios_encoder_data *devdata)
enum port port;
port = dvo_port_to_port(i915, child->dvo_port);
if (port == PORT_NONE && DISPLAY_VER(i915) >= 11)
port = dsi_dvo_port_to_port(i915, child->dvo_port);
if (port == PORT_NONE)
return;