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path: root/include/drm/drm_probe_helper.h
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2022-09-12drm/probe-helper: Add drm_crtc_helper_mode_valid_fixed()Thomas Zimmermann
Add drm_crtc_helper_mode_valid_fixed(), which validates a given mode against a display hardware's mode. Convert simpledrm and use it in a few other drivers with static modes. v4: * remove empty line after opening brace v2: * rename 'static' and 'hw' to 'fixed' everywhere Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-3-tzimmermann@suse.de
2022-09-12drm/probe-helper: Add drm_connector_helper_get_modes_fixed()Thomas Zimmermann
Add drm_connector_helper_get_modes_fixed(), which duplicates a single display mode for a connector. Convert drivers. v2: * rename 'static' and 'hw' to 'fixed' everywhere * fix typo 'there' to 'their' (Sam) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-2-tzimmermann@suse.de
2022-06-30drm/probe-helper: add drm_connector_helper_get_modes()Jani Nikula
Add a helper function to be used as the "default" .get_modes() hook. This also works as an example of what the driver .get_modes() hooks are supposed to do regarding the new drm_edid_read*() and drm_edid_connector_update() calls. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/d985449ed4b95971490ab7c09d2d59b58a892769.1656494768.git.jani.nikula@intel.com
2022-05-17drm/mgag200: Implement connector's get_modes with helperThomas Zimmermann
Provide drm_connector_helper_get_modes_from_ddc() to implement the connector's get_modes callback. The new helper updates the connector from DDC-provided EDID data. v2: * clear property if EDID is NULL in helper Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Tested-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220516134343.6085-4-tzimmermann@suse.de
2021-11-02drm/probe-helper: add drm_kms_helper_connector_hotplug_eventSimon Ser
This function is the same as drm_kms_helper_hotplug_event, but takes a connector instead of a device. Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211018084707.32253-3-contact@emersion.fr
2021-09-28drm/probe-helper: Create a HPD IRQ event helper for a single connectorMaxime Ripard
The drm_helper_hpd_irq_event() function is iterating over all the connectors when an hotplug event is detected. During that iteration, it will call each connector detect function and figure out if its status changed. Finally, if any connector changed, it will notify the user-space and the clients that something changed on the DRM device. This is supposed to be used for drivers that don't have a hotplug interrupt for individual connectors. However, drivers that can use an interrupt for a single connector are left in the dust and can either reimplement the logic used during the iteration for each connector or use that helper and iterate over all connectors all the time. Since both are suboptimal, let's create a helper that will only perform the status detection on a single connector. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210914101724.266570-2-maxime@cerno.tech
2019-01-24drm: Split out drm_probe_helper.hDaniel Vetter
Having the probe helper stuff (which pretty much everyone needs) in the drm_crtc_helper.h file (which atomic drivers should never need) is confusing. Split them out. To make sure I actually achieved the goal here I went through all drivers. And indeed, all atomic drivers are now free of drm_crtc_helper.h includes. v2: Make it compile. There was so much compile fail on arm drivers that I figured I'll better not include any of the acks on v1. v3: Massive rebase because i915 has lost a lot of drmP.h includes, but not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h there was still one, which this patch largely removes. Which means rolling out lots more includes all over. This will also conflict with ongoing drmP.h cleanup by others I expect. v3: Rebase on top of atomic bochs. v4: Review from Laurent for bridge/rcar/omap/shmob/core bits: - (re)move some of the added includes, use the better include files in other places (all suggested from Laurent adopted unchanged). - sort alphabetically v5: Actually try to sort them, and while at it, sort all the ones I touch. v6: Rebase onto i915 changes. v7: Rebase once more. Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Acked-by: CK Hu <ck.hu@mediatek.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: virtualization@lists.linux-foundation.org Cc: etnaviv@lists.freedesktop.org Cc: linux-samsung-soc@vger.kernel.org Cc: intel-gfx@lists.freedesktop.org Cc: linux-mediatek@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: spice-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-tegra@vger.kernel.org Cc: xen-devel@lists.xen.org Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch