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path: root/drivers/gpu/drm/i915/display/intel_hotplug.c
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2020-06-24Merge tag 'drm-misc-next-2020-06-19' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.9: UAPI Changes: - Add DRM_MODE_TYPE_USERDEF for video modes specified in cmdline. Cross-subsystem Changes: - Assorted devicetree binding updates. - Add might_sleep() to dma_fence_wait(). - Fix fbdev's get_user_pages_fast() handling, and use pin_user_pages. - Small cleanup with IS_BUILTIN in video/fbdev drivers. - Fix video/hdmi coding style for infoframe size. Core Changes: - Silence vblank output during init. - Fix DP-MST corruption during send msg timeout. - Clear leak in drm_gem_objecs_lookup(). - Make newlines work with force connector attribute. - Fix module refcounting error in drm_encoder_slave, and use new i2c api. - Header fix for drm_managed.c - More struct_mutex removal for !legacy drivers: - Remove gem_free_object() - Removal of drm_gem_object_put_unlocked(). - Show current->comm alongside pid in debug printfs. - Add drm_client_modeset_check() + drm_client_framebuffer_flush(). - Replace drm_fb_swab16 with drm_fb_swap that also supports 32-bits. - Remove mode->vrefresh, and compactify drm_display_mode. - Use drm_* macros for logging and warnings. - Add WARN when drm_gem_get_pages is used on a private obj. - Handle importing and imported dmabuf better in shmem helpers. - Small fix for drm/mm hole size comparison, and remove invalid entry optimization. - Add a drm/mm selftest. - Set DSI connector type for DSI panels. - Assorted small fixes and documentation updates. - Fix DDI I2C device registration for MST ports, and flushing on destroy. - Fix master_set return type, used by vmwgfx. - Make the drm_set/drop_master ioctl symmetrical. Driver Changes: Allow iommu in the sun4i driver and use it for sun8i. - Simplify backlight lookup for omap, amba-clcd and tilcdc. - Hold reg_lock for rockchip. - Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice. - Small assorted fixes to tilcdc, vc4, i915, omap, fbdev/sm712fb, fbdev/pxafb, console/newport_con, msm, virtio, udl, malidp, hdlcd, bridge/ti-sn65dsi86, panfrost. - Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers. - Add support for KOE Allow iommu in the sun4i driver and use it for sun8i. - Simplify backlight lookup for omap, amba-clcd and tilcdc. - Hold reg_lock for rockchip. - Add support for bridge gpio and lane reordering + polarity to ti-sn65dsi86, and fix clock choice. - Small assorted fixes to tilcdc, vc4 (multiple), i915. - Remove hw cursor support for mgag200, and use simple kms helper + shmem helpers. - Add support for KOE TX26D202VM0BWA panel. - Use GEM CMA functions in arc, arm, atmel-hlcdc, fsi-dcu, hisilicon, imx, ingenic, komeda, malidp, mcde, meson, msxfb, rcar-du, shmobile, stm, sti, tilcdc, tve200, zte. - Remove gem_print_info. - Improve gem_create_object_helper so udl can use shmem helpers. - Convert vc4 dt bindings to schemas, and add clock properties. - Device initialization cleanups for mgag200. - Add a workaround to fix DP-MST short pulses handling on broken hardware in i915. - Allow build test compiling arm drivers. - Use managed pci functions in mgag200 and ast. - Use dev_groups in malidp. - Add per pixel alpha support for PX30 VOP in rockchip. - Silence deferred probe logs in panfrost. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/001cd9a6-405d-4e29-43d8-354f53ae4e8b@linux.intel.com
2020-06-11drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulsesImre Deak
Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter, incorrectly filter out HPD short pulses with a duration less than ~540 usec, leading to MST probe failures. According to the DP Standard 2.0 section 5.1.4: - DP sinks should generate short pulses in the 500 usec -> 1 msec range - DP sources should detect short pulses in the 250 usec -> 2 msec range According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters should detect and forward short pulses according to how sources should detect them as specified in the DP Standard (250 usec -> 2 msec). Based on the above filtering out short pulses with a duration less than 540 usec is incorrect. To make such adapters work add support for a driver polling on MST inerrupt flags, and wire this up in the i915 driver. The sink can clear an interrupt it raised after 110 msec if the source doesn't respond, so use a 50 msec poll period to avoid missing an interrupt. Polling of the MST interrupt flags is explicitly allowed by the DP Standard. This fixes MST probe failures I saw using this adapter and a DELL U2515H monitor. v2: - Fix the wait event timeout for the no-poll case. v3 (Ville): - Fix the short pulse duration limits in the commit log prescribed by the DP Standard. - Add code comment explaining why/how polling is used. - Factor out a helper to schedule the port's hpd irq handler and move it to the rest of hotplug handlers. - Document the new MST callback. - s/update_hpd_irq_state/poll_hpd_irq/ Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200604184500.23730-2-imre.deak@intel.com
2020-06-09drm/i915/rkl: Update TGP's pin mapping when paired with RKLMatt Roper
HPD pin handling for RKL+TGP is a special case; we effectively select the HPD pin based on the DDI (A,B,D,E) rather than the PHY (A,B,C,D). This differs from the regular behavior of RKL+CMP (and also TGL+TGP). v2: - Rather than providing a custom hpd_pin mapping table, just assign encoder->hpd_pin in a custom manner for this setup. (Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200606025740.3308880-4-matthew.d.roper@intel.com Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2020-04-06drm/i915: Add a retry counter for hotplug detect retriesImre Deak
On TypeC connectors we need to retry the detection after hotplug events for a longer time, so add a retry counter to support this. The next patch will add detection retries on TypeC ports needing this. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200330095425.29113-1-imre.deak@intel.com
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