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path: root/drivers/gpu/drm/i915/display/intel_hotplug.c
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2020-03-11drm/i915/hotplug: convert to drm_device based logging.Wambui Karuga
Converts various instances of the printk based drm logging macros to the struct drm_device based logging macros in i915/display/intel_hotplug.c. In some cases, this involves extracting the drm_i915_private pointer from the drm_device struct to be used in the logging macros. Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/3dfda89ab4a234f299ada77abd14163cef3f8bd4.1583766715.git.jani.nikula@intel.com
2020-03-06drm/i915/hotplug: Use phy to get the hpd_pin instead of the port (v5)Vivek Kasireddy
On some platforms such as Elkhart Lake, although we may use DDI D to drive a connector, we have to use PHY A (Combo Phy PORT A) to detect the hotplug interrupts as per the spec because there is no one-to-one mapping between DDIs and PHYs. Therefore, use the function intel_port_to_phy() which contains the logic for such mapping(s) to find the correct hpd_pin. This change should not affect other platforms as there is always a one-to-one mapping between DDIs and PHYs. v2: - Convert the case statements to use PHYs instead of PORTs (Jani) v3: - Refactor the function to reduce the number of return statements by lumping all the case statements together except PHY_F which needs special handling (Jose) v4: - Add a comment describing how the HPD pin value associated with any port can be retrieved using port or phy enum value. (Jani) v5: - Use case ranges instead of individual labels and also normalize the return statement by adding -PHY_A to the expression (Ville) Cc: Jani Nikula <jani.nikula@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200304234240.12062-1-vivek.kasireddy@intel.com
2020-02-27drm/i915: significantly reduce the use of <drm/i915_drm.h>Jani Nikula
The #include has been splattered all over the place, but there are precious few places, all .c files, that actually need it. v2: remove leftover double newlines Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200225133131.3301-1-jani.nikula@intel.com
2020-02-20drm/i915: Mark all HPD capabled connectors as suchVille Syrjälä
Currently we only set the DRM_CONNECTOR_POLL_{DISCONNECT,CONNECT} bits in intel_connector->polled (the base setting), leading to some confusing looking code to reset drm_connector->polled (the actual setting) to DRM_CONNECTOR_POLL_HPD. Let's set intel_connector->polled = DRM_CONNECTOR_POLL_HPD for all hpd capable connectors, and then we don't need so many special cases in the hotplug code. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200205183546.9291-3-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2020-02-20drm/i915/hpd: Replace the loop-within-loop with two independent loopsVille Syrjälä
No point in looping over all connectors for each hpd pin. Just loop over each connector first and deal with each one's hpd pin. Then loop over all the hpd pins to mark them as enabled again. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200205183546.9291-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2020-02-04drm/i915: Introduce intel_connector_hpd_pin()Ville Syrjälä
Simplify the hotplug code connector->encoder->hpd_pin handling by introducing a helper for exactly this purpose. In the helper we can neatly deal with the potential lack of an attached encoder on fresh MST connectors leaving the rest of the hpd code oblivious to such details. Cc: Lyude Paul <lyude@redhat.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200121171100.4370-3-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2020-02-04drm/i915/display: Make WARN* drm specific where drm_device ptr is availablePankaj Bharadiya
drm specific WARN* calls include device information in the backtrace, so we know what device the warnings originate from. Covert all the calls of WARN* with device specific drm_WARN* variants in functions where drm_device or drm_i915_private struct pointer is readily available. The conversion was done automatically with below coccinelle semantic patch. checkpatch errors/warnings are fixed manually. @rule1@ identifier func, T; @@ func(...) { ... struct drm_device *T = ...; <... ( -WARN( +drm_WARN(T, ...) | -WARN_ON( +drm_WARN_ON(T, ...) | -WARN_ONCE( +drm_WARN_ONCE(T, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(T, ...) ) ...> } @rule2@ identifier func, T; @@ func(struct drm_device *T,...) { <... ( -WARN( +drm_WARN(T, ...) | -WARN_ON( +drm_WARN_ON(T, ...) | -WARN_ONCE( +drm_WARN_ONCE(T, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(T, ...) ) ...> } @rule3@ identifier func, T; @@ func(...) { ... struct drm_i915_private *T = ...; <+... ( -WARN( +drm_WARN(&T->drm, ...) | -WARN_ON( +drm_WARN_ON(&T->drm, ...) | -WARN_ONCE( +drm_WARN_ONCE(&T->drm, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(&T->drm, ...) ) ...+> } @rule4@ identifier func, T; @@ func(struct drm_i915_private *T,...) { <+... ( -WARN( +drm_WARN(&T->drm, ...) | -WARN_ON( +drm_WARN_ON(&T->drm, ...) | -WARN_ONCE( +drm_WARN_ONCE(&T->drm, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(&T->drm, ...) ) ...+> } Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200128181603.27767-20-pankaj.laxminarayan.bharadiya@intel.com
2020-01-27drm/i915: Prefer intel_connector over drm_connector in hotplug codeVille Syrjälä
Replace the drm_connector loops with intel_connector loops to streamline the code. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200121171100.4370-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2020-01-21drm/i915: Use intel_attached_encoder()Ville Syrjälä
It's easy to confuse the drm_connector->encoder (legacy state adjusted during modeset) and intel_connector->encoder (the statically (sans. MST) attached encoder of the connector). For the latter let's use intel_attached_encoder() consistently. @@ identifier F !~ "^intel_attached_encoder$"; struct intel_connector *C; expression E; @@ F(...) { <... ( C->encoder = E | - C->encoder + intel_attached_encoder(C) ) ...> } @@ identifier F !~ "^intel_attached_encoder$"; struct drm_connector *C; expression E; @@ F(...) { <... ( to_intel_connector(C)->encoder = E | - to_intel_connector(C)->encoder + intel_attached_encoder(to_intel_connector(C)) ) ...> } v2: Regenerated Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191204180549.1267-6-ville.syrjala@linux.intel.com Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
2020-01-13drm/i915: Pass intel_encoder to enc_to_*()Ville Syrjälä
Lots of enc_to_foo(&encoder->base) around. Simplify by passing in the intel_encoder instead. @find@ identifier F =~ "^enc_to_.*"; identifier E; @@ F(struct drm_encoder *E) { ... } @@ identifier find.F; identifier find.E; @@ F( - struct drm_encoder *E + struct intel_encoder *encoder ) { <... - E + &encoder->base ...> } @@ identifier find.F; expression E; @@ - F(E) + F(to_intel_encoder(E)) @@ expression E; @@ - to_intel_encoder(&E->base) + E Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191204180549.1267-4-ville.syrjala@linux.intel.com Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
2019-09-02drm/i915: Prefer encoder->name over port_name()Ville Syrjälä
enum port is a mess now because it no longer matches the spec at all. Let's start to dig ourselves out of this hole by reducing our reliance on port_name(). This should at least make a bunch of debug messages a bit more sensible while we think how to fill the the hole properly. Based on the following cocci script with a lot of manual cleanup (all the format strings etc.): @@ expression E; @@ ( - port_name(E->port) + E->base.base.id, E->base.name | - port_name(E.port) + E.base.base.id, E.base.name ) @@ enum port P; expression E; @@ P = E->port <... - port_name(P) + E->base.base.id, E->base.name ...> @@ enum port P; expression E; @@ P = E.port <... - port_name(P) + E.base.base.id, E.base.name ...> @@ expression E; @@ { - enum port P = E; ... when != P } Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190830182719.32608-1-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2019-08-07drm/i915: rename intel_drv.h to display/intel_display_types.hJani Nikula
Everything about the file is about display, and mostly about types related to display. Move under display/ as intel_display_types.h to reflect the facts. There's still plenty to clean up, but start off with moving the file where it logically belongs and naming according to contents. v2: fix the include guard name in the renamed file Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190806113933.11799-1-jani.nikula@intel.com
2019-07-30drm/i915/tgl: Add hpd interrupt handlingLucas De Marchi
Add hotdplug detection for all ports on TGP. icp_hpd_detection_setup() is refactored to be shared with TGP. While we increase the number of pins, add a BUILD_BUG_ON() to avoid going over the number of bits allowed. v2: use BITS_PER_TYPE and correct type for BUILD_BUG_ON() check (requested by Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jose Souza <jose.souza@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190725234813.27179-2-lucas.demarchi@intel.com
2019-07-15drm/i915: Add support for retrying hotplugImre Deak
There is some scenarios that we are aware that sink probe can fail, so lets add the infrastructure to let hotplug() hook to request another probe after some time. v2: Handle shared HPD pins (Imre) v3: Rebased v4: Renamed INTEL_HOTPLUG_NOCHANGE to INTEL_HOTPLUG_UNCHANGED to keep it consistent(Rodrigo) v5: Making the working queue used explicit through all the callers to hotplug_work (Ville) Tested-by: Timo Aaltonen <tjaalton@ubuntu.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190712005343.24571-1-jose.souza@intel.com
2019-06-17drm/i915: move modesetting core code under display/Jani Nikula
Now that we have a new subdirectory for display code, continue by moving modesetting core code. display/intel_frontbuffer.h sticks out like a sore thumb, otherwise this is, again, a surprisingly clean operation. v2: - don't move intel_sideband.[ch] (Ville) - use tabs for Makefile file lists and sort them Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190613084416.6794-3-jani.nikula@intel.com