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2016-12-01drm: Make the connector .detect() callback optionalLaurent Pinchart1-7/+0
Many drivers (21 to be exact) create connectors that are always connected (for instance to an LVDS or DSI panel). Instead of forcing them to implement a dummy .detect() handler, make the callback optional and consider the connector as always connected in that case. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Jyri Sarha <jsarha@ti.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Vincent Abriou <vincent.abriou@st.com> Acked-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [seanpaul fixed small conflict in rcar-du/rcar_du_lvdscon.c] Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-11-25drm/hisilicon/hibmc: mark PM functions __maybe_unusedArnd Bergmann1-2/+2
When CONFIG_PM_SLEEP is disabled, we get a harmless warning drm/hisilicon/hibmc/hibmc_drm_drv.c:115:12: error: ‘hibmc_pm_resume’ defined but not used [-Werror=unused-function] drm/hisilicon/hibmc/hibmc_drm_drv.c:97:12: error: ‘hibmc_pm_suspend’ defined but not used [-Werror=unused-function] Marking the functions as __maybe_unused avoids the warning without having to add an #ifdef. Fixes: 5e0df3a08f3d ("drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161124163107.3914495-1-arnd@arndb.de
2016-11-25drm/hisilicon/hibmc: Checking for NULL instead of IS_ERR()Dan Carpenter1-2/+2
The drm_dev_alloc() function returns error pointers. It never returns NULLs. Fixes: 5e0df3a08f3d ("drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161124113545.GP17225@mwanda
2016-11-17drm/hisilicon/hibmc: Add support for vblank interruptRongrong Zou2-1/+56
Add vblank interrupt. Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Acked-by: Sean Paul <seanpaul@chromium.org>
2016-11-17drm/hisilicon/hibmc: Add support for VDACRongrong Zou4-1/+155
VDAC(Video Digital-to-Analog converter) converts the RGB diaital data stream from DE to VGA analog signals. Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Acked-by: Sean Paul <seanpaul@chromium.org>
2016-11-17drm/hisilicon/hibmc: Add support for display engineRongrong Zou5-2/+558
Add display engine function, crtc/plane is initialized here. Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Acked-by: Sean Paul <seanpaul@chromium.org>
2016-11-17drm/hisilicon/hibmc: Add support for frame bufferRongrong Zou5-1/+366
Add support for fbdev and kms fb management. Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Acked-by: Sean Paul <seanpaul@chromium.org>
2016-11-17drm/hisilicon/hibmc: Add video memory managementRongrong Zou4-1/+541
Hibmc have 32m video memory which can be accessed through PCIe by host, we use ttm to manage these memory. Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Acked-by: Sean Paul <seanpaul@chromium.org>
2016-11-17drm/hisilicon/hibmc: Add hisilicon hibmc drm master driverRongrong Zou7-0/+560
Add DRM master driver for Hisilicon Hibmc SoC which used for Out-of-band management. Blow is the general hardware connection, both the Hibmc and the host CPU are on the same mother board. +----------+ +----------+ | | PCIe | Hibmc | |host CPU( |<----->| display | |arm64,x86)| |subsystem | +----------+ +----------+ Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Acked-by: Sean Paul <seanpaul@chromium.org>
2016-11-12drm: move allocation out of drm_get_format_name()Eric Engestrom1-4/+3
The function's behaviour was changed in 90844f00049e, without changing its signature, causing people to keep using it the old way without realising they were now leaking memory. Rob Clark also noticed it was also allocating GFP_KERNEL memory in atomic contexts, breaking them. Instead of having to allocate GFP_ATOMIC memory and fixing the callers to make them cleanup the memory afterwards, let's change the function's signature by having the caller take care of the memory and passing it to the function. The new parameter is a single-field struct in order to enforce the size of its buffer and help callers to correctly manage their memory. Fixes: 90844f00049e ("drm: make drm_get_format_name thread-safe") Cc: Rob Clark <robdclark@gmail.com> Cc: Christian König <christian.koenig@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Sinclair Yeh <syeh@vmware.com> (vmwgfx) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Eric Engestrom <eric@engestrom.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161112011309.9799-1-eric@engestrom.ch
2016-11-02drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefsJani Nikula1-2/+0
If we define drm_compat_ioctl NULL on CONFIG_COMPAT=n, we don't have to check for the config everywhere. Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1478014844-27454-1-git-send-email-jani.nikula@intel.com
2016-10-25drm: convert DT component matching to component_match_add_release()Russell King1-3/+4
Convert DT component matching to use component_match_add_release(). Acked-by: Jyri Sarha <jsarha@ti.com> Reviewed-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/E1bwo6l-0005Io-Q1@rmk-PC.armlinux.org.uk
2016-09-22drm: Don't swallow error codes in drm_dev_alloc()Tom Gundersen1-2/+2
There are many reasons other than ENOMEM that drm_dev_init() can fail. Return ERR_PTR rather than NULL to be able to distinguish these in the caller. Signed-off-by: Tom Gundersen <teg@jklm.no> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20160921145919.13754-2-teg@jklm.no
2016-08-19drm: Don't implement empty prepare_fb()/cleanup_fb()Laurent Pinchart1-15/+0
The plane .prepare_fb() and .cleanup_fb() helpers are optional, there's no need to implement empty stubs, and no need to explicitly set the function pointers to NULL either. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [danvet: Resolved conflicts with Chris' patch.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-08-19drm: Allow drivers to modify plane_state in prepare_fb/cleanup_fbChris Wilson1-2/+2
The drivers have to modify the atomic plane state during the prepare_fb callback so they track allocations, reservations and dependencies for this atomic operation involving this fb. In particular, how else do we set the plane->fence from the framebuffer! Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160818180017.20508-1-chris@chris-wilson.co.uk
2016-08-17Revert "drm/hisilicon: Don't set drm_device->platformdev"Daniel Vetter3-9/+11
This reverts commit d25bcfb8c2e18b9b36f037f38be4d4792ebf8d57. I somehow missed that it only compiles on arm64 and broke the driver rather badly. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-08-16drm/hisilicon: Don't set drm_device->platformdevDaniel Vetter3-11/+9
It's deprecated and only should be used by drivers which still use drm_platform_init, not by anyone else. And indeed it's entirely unused and can be nuked. This required a bit more fudging, but I guess kirin_dc_ops really wants to operate on the platform_device, not something else. Also bonus points for implementing abstraction, and then storing the vfunc in a global variable. Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Archit Taneja <architt@codeaurora.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-7-git-send-email-daniel.vetter@ffwll.ch
2016-08-16drm: drop DRIVER_HAVE_IRQ flag for some driversShawn Guo1-1/+1
Since commit 4984979b9b90 ("drm/irq: simplify irq checks in drm_wait_vblank"), the drm driver feature flag DRIVER_HAVE_IRQ is only required for drivers that have an IRQ handler managed by the DRM core. Some drivers, armada, etnaviv, kirin and sti, set this flag without .irq_handler setup in drm_driver. These drivers manage IRQ handler by themselves and the flag DRIVER_HAVE_IRQ makes no sense there. Drop the flag for these drivers to avoid confusion. Signed-off-by: Shawn Guo <shawnguo@kernel.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Xinliang Liu <z.liuxinliang@hisilicon.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> (for armada and etnaviv) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1471331168-5601-1-git-send-email-shawnguo@kernel.org
2016-08-16drm: remove `const` attribute to hint at caller that they now own the memoryEric Engestrom1-1/+1
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-08-15drm: make drm_get_format_name thread-safeEric Engestrom1-2/+4
Signed-off-by: Eric Engestrom <eric@engestrom.ch> [danvet: Clarify that the returned pointer must be freed with kfree().] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-07-04drm/hisilicon: Fix ADE vblank on/off handlingXinliang Liu1-0/+2
Vblank turn on should be called in crtc's enable callback. And turn off called in crtc's disable callback. Thanks to Daniel Vetter, this bug is reported by him. Reported-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
2016-07-04drm/hisilicon: add select HISI_KIRIN_DW_DSIZoltan Kuscsik1-0/+1
Add select HISI_KIRIN_DW_DSI to Kconfig. The DRM driver depends on dsi sub-driver. Signed-off-by: Zoltan Kuscsik <zoltan.kuscsik@linaro.org> Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
2016-07-04drm/hisilicon: Fix return value check in ade_dts_parse()Wei Yongjun1-6/+6
In case of error, the function devm_clk_get() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Chen Feng <puck.chen@hisilicon.com>
2016-06-21drm: Lobotomize set_busid nonsense for !pci driversDaniel Vetter1-1/+0
We already have a fallback in place to fill out the unique from dev->unique, which is set to something reasonable in drm_dev_alloc. Which means we only need to have a special set_busid for pci devices, to be able to care the backwards compat code for drm 1.1 around, which libdrm still needs. While developing and testing this patch things blew up in really interesting ways, and the code is rather confusing in naming things between the kernel code, ioctl #defines and libdrm. For the next brave dragon slayer, document all this madness properly in the userspace interface section of gpu.tmpl. v2: Make drm_dev_set_unique static and update kerneldoc. v3: Entire rewrite, plus document what's going on for posterity in the gpu docbook uapi section. v4: Drop accidental amdgpu hunk (Emil). v5: Drop accidental omapdrm vblank counter change (Emil). v6: Rebase on top of the sphinx conversion. Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Cc: Emil Velikov <emil.l.velikov@gmail.com> Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> (virt_gpu) Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-21drm/hisilicon: Remove redundant calls to drm_connector_register_all()Chris Wilson1-8/+0
Up to now, the recommendation was for drivers to call drm_dev_register() followed by drm_connector_register_all(). Now that drm_connector_register() is safe against multiple invocations, we can move drm_connector_register_all() to drm_dev_register() and not suffer from any backwards compatibility issues with drivers not following the more rigorous init ordering. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Xinliang Liu <z.liuxinliang@hisilicon.com> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Chen Feng <puck.chen@hisilicon.com> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1466151923-1572-5-git-send-email-chris@chris-wilson.co.uk
2016-06-09drm/hisilicon: Implement some semblance of vblank event handlingDaniel Vetter1-8/+12
atomic_flush seems to be the right place, but I'm not entirely sure whether this will catch them all. It could be that when disabling the crtc we'll miss the vblank. While at it nuke the dummy functions. v2: Be more robust and either arm, when the CRTC is on, or just send the event out right away. Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Archit Taneja <architt@codeaurora.org> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-5-git-send-email-daniel.vetter@ffwll.ch
2016-05-31drm/hisilicon: Use lockless gem BO free callbackDaniel Vetter1-1/+1
No dev->struct_mutex anywhere to be seen. Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Acked-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1464630800-30786-27-git-send-email-daniel.vetter@ffwll.ch
2016-05-11drm/hisilicon: Fix DRM_INFO printed issueXinliang Liu1-1/+2
This patch fixed the bellow no DRM_INFO is printed issue: if (!delay_count) DRM_INFO("phylock and phystopstateclklane is not ready.\n"); There will some printed issues with above info, under certain circumstances: If ((BIT(0) | BIT(2)) & val) is never true, break will not happen and delay_count will be max u32 value (?), and no DRM_INFO is printed. Also if ((BIT(0) | BIT(2)) & val) is true at the last possible loop round, break happens, but now delay_count is already zero ( because of earlier delay_count-- ) and DRM_INFO is erroneously printed. Thanks to Juha Leppänen, he reports to me this issue. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Reported-by: Juha Leppänen <juha_efku@dnainternet.net>
2016-05-11drm/hisilicon: Make kirin_drm_unbind sufficientXinliang Liu1-1/+6
Remove deprecated drm_put_dev. Clean up everything needed in unbind. Thanks to Daniel Vetter, this issue is reported by him. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reported-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
2016-05-11drm/hisilicon: Use drm_connector_register_allDaniel Vetter1-30/+1
Use drm_connector_register_all helper to register connectors. Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-04-29drm/hisilicon: Add support for external bridgeXinliang Liu1-0/+52
Add support for external HDMI bridge. v8: None. v7: None. v6: None. v5: None. v4: None. v3: - Fix a typo: s/exteranl/external. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Archit Taneja <architt@codeaurora.org>
2016-04-29drm/hisilicon: Add designware dsi host driverXinliang Liu1-0/+50
Add DesignWare dsi host driver for hi6220 SoC. v8: None. v7: None. v6: None. v5: None. v4: None. v3: None. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Archit Taneja <architt@codeaurora.org>
2016-04-29drm/hisilicon: Add designware dsi encoder driverXinliang Liu4-0/+869
Add DesignWare MIPI DSI Host Controller v1.02 encoder driver for hi6220 SoC. v9: Fix module compile error. v8: None. v7: - A few regs define clean up. v6: - Change "pclk_dsi" to "pclk". v5: None. v4: None. v3: - Rename file name to dw_drm_dsi.c - Make encoder type as DRM_MODE_ENCODER_DSI. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Signed-off-by: Andy Green <andy.green@linaro.org>
2016-04-29drm/hisilicon: Add cma fbdev and hotplugXinliang Liu2-0/+37
Add cma Fbdev, Fbdev is legency and optional, you can enable/disable it by configuring DRM_FBDEV_EMULATION. Add hotplug. v8: None. v7: None. v6: None. v5: None. v4: None. v3: None. v2: - Use CONFIG_DRM_FBDEV_EMULATION instead of CONFIG_DRM_HISI_FBDEV. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add vblank driver for ADEXinliang Liu2-1/+75
Add vblank irq handle. v8: None. v7: - Fix irq flag "DRIVER_IRQF_SHARED" to "IRQF_SHARED". v6: None. v5: None. v4: None. v3: - Remove hisi_get_crtc_from_index func. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add plane driver for ADEXinliang Liu1-1/+534
Add plane funcs and helper funcs for ADE. v8: None. v7: None. v6: None. v5: None. v4: None. v3: - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
2016-04-29drm/hisilicon: Add crtc driver for ADEXinliang Liu5-1/+714
Add crtc funcs and helper funcs for ADE. v8: None. v7: - A few Regs define clean up and typo fixs. v6: - Cleanup reg-names dt parsing. v5: - Use syscon to access ADE media NOC QoS registers instread of directly writing registers. - Use reset controller to reset ADE instead of directly writing registers. v4: None. v3: - Make ade as the master driver. - Use port to connect with encoder. - A few cleanup. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Archit Taneja <architt@codeaurora.org>
2016-04-29drm/hisilicon: Add hisilicon kirin drm master driverXinliang Liu6-0/+351
Add kirin DRM master driver for hi6220 SoC which used in HiKey board. Add dumb buffer feature. Add prime dmabuf feature. v9: Add OF and ARM64 depends on in Kconfig v8: None. v7: - Add config.mutex protection when accessing mode_config.connector_list. - Clean up match data getting. v6: None. v5: None. v4: None. v3: - Move and rename all the files to kirin sub-directory. So that we could separate different seires SoCs' driver. - Replace drm_platform_init, load, unload implementation. v2: - Remove abtraction layer. Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
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