- 07 Nov, 2017 4 commits
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Philippe CORNU authored
ltdc can have up to 2 endpoints: - dpi external gpios: for rgb panels or external bridge ICs. - dpi internal ios: connected internally to dsi. Note: Refer to the reference manual to know if the dsi is present on your device. Signed-off-by:
Philippe Cornu <philippe.cornu@st.com> Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1509018489-19641-3-git-send-email-philippe.cornu@st.com
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Philippe CORNU authored
ltdc can have up to 2 endpoints: - dpi external gpios: for rgb panels or external bridge ICs. - dpi internal ios: connected internally to dsi. Note: Refer to the reference manual to know if the dsi is present on your device. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Philippe CORNU authored
Minor fixes detected with "scripts/checkpatch.pl --strict" Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by:
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Philippe CORNU authored
Rename the driver name from "dw_mipi_dsi-stm" to "stm32-display-dsi" for a better readability in /sys/bus/platform/drivers entries. Signed-off-by:
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- 06 Nov, 2017 1 commit
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Arnd Bergmann authored
We want to remove uses of do_gettimeofday() from the kernel since the resulting timeval structure overflows in 2038. This is not a problem for this particular use, but do_gettimeofday() is also not an appropriate method for measuring time intervals, since it requires a conversion into microseconds and is complicated to work with. ktime_get() is a better replacement, as it works with the monontonic kernel timebase and requires a minimum of computation. I'm slightly changing the output from microseconds to nanoseconds here, to avoid introducing a new division operation. This should be fine since the value is only used for debugging. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171104212131.2939989-1-arnd@arndb.de
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- 02 Nov, 2017 6 commits
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Ville Syrjälä authored
When debugging bad plane source coordinates it helps to have an idea of what the framebuffer dimensions are. Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Liviu Dudau authored
drm_mm_insert_node_generic() is a simplified version of drm_mm_insert_node_in_range(), update comment to reflect correct function name. Signed-off-by:
Liviu Dudau <liviu.dudau@arm.com> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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Liviu Dudau authored
Mappings need to be unmapped by calling dma_buf_unmap_attachment() and not by calling again dma_buf_map_attachment(). Also fix some spelling mistakes. Signed-off-by:
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Liviu Dudau authored
Minor spelling fix for 'monster' and replace 'on' with 'own' in comments. Signed-off-by:
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Boris BREZILLON authored
vc4->purgeable.size and vc4->purgeable.purged_size are size_t fields and should be printed with a %zd specifier. Fixes: b9f19259 ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl") Signed-off-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by:
Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20171101095731.14878-1-boris.brezillon@free-electrons.com
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Liviu Dudau authored
Commit db2395eci ("drm: Convert drm_vma_manager to embedded interval-tree in drm_mm") removed a line in drm_vma_offset_add() function that makes checking the result of calling drm_mm_insert_node() and the goto call redundant. Rework the function (as suggested by Chris Wilson) to eliminate the need for the goto and associated label. v2: rewrite function to remove all goto statements. Fixes: db2395eci ("drm: Convert drm_vma_manager to embedded interval-tree in drm_mm") Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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- 31 Oct, 2017 6 commits
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Noralf Trønnes authored
This adds helpers for the drm_driver->last_close and the drm_mode_config_funcs->output_poll_changed callbacks. Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Reviewed-by:
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Noralf Trønnes authored
drm_fb_helper is *the* way of doing fbdev emulation so add a pointer to struct drm_device. This makes it possible to add callback helpers for .last_close and .output_poll_changed further reducing fbdev emulation footprint in drivers. The pointer is set by drm_fb_helper_init() and cleared by drm_fb_helper_fini(). Signed-off-by:
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Noralf Trønnes authored
Make functions tolerate that the drm_fb_helper argument is NULL. This is useful for drivers that continue probing when fbdev emulation fails and not having to do this check themselves. Update docs for functions that already handles this. Signed-off-by:
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Daniel Vetter authored
Gustavo volunteered to become a drm-misc co-maintainer, he'll take care of 4.16 to get started. Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Dave Airlie <airlied@redhat.com> Acked-by:
Sean Paul <seanpaul@chromium.org> Acked-by:
Jani Nikula <jani.nikula@intel.com> Acked-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171030131028.11285-1-daniel.vetter@ffwll.ch
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Daniel Vetter authored
Not everyone agrees this is the best thing, so make it really clear that maintainers need to be asked first, then the conversion. We've had a few newbies that did this the other way round, got their patches rejected, which isn't the best newbie experience. Cc: Sean Paul <seanpaul@chromium.org> Acked-by:
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Kees Cook authored
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
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- 30 Oct, 2017 5 commits
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Dan Carpenter authored
There is one caller which checks whether rpi_touchscreen_i2c_read() returns negative error codes. Currently it can't because negative error codes are truncated to u8, but that's easy to fix if we change the type to int. Fixes: 2f733d61 ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Kees Cook authored
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Eric Anholt <eric@anholt.net> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
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Chris Wilson authored
pr_debug() is conditionally compiled and requires either dynamic-debugging to be enabled or for the code to opt-in using #define DEBUG. Since drm_print provides a central debugging facility using pr_debug(), make sure it will always produce output. Signed-off-by:
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Pan Bian authored
The function kunmap_atomatic() is called on the same variable twice, i.e. pt->v. In the second call, its parameter should be variable v rather than pt->v. Signed-off-by:
Pan Bian <bianpan2016@163.com> Signed-off-by:
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Aastha Gupta authored
DRM core uses reference/unreference suffixes for refcounting functions, but kernel uses get/put (e.g. kref_get/put()). Replace reference/unreference with get/put for consistency and also it's shorter. The following cocci script was used to generate the patch: @@ expression e; @@ ( -drm_gem_object_reference(e); +drm_gem_object_get(e); | -drm_gem_object_unreference(e); +drm_gem_object_put(e); | -drm_gem_object_unreference_unlocked(e); +drm_gem_object_put_unlocked(e); ) Signed-off-by:
Aastha Gupta <aastha.gupta4104@gmail.com> Signed-off-by:
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- 27 Oct, 2017 2 commits
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Noralf Trønnes authored
Remove two trailing spaces. Signed-off-by:
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Dhinakaran Pandiyan authored
DPCD 600h - SET_POWER & SET_DP_PWR_VOLTAGE defines power state 101 = Set Main-Link for local Sink device and all downstream Sink devices to D3 (power-down mode), keep AUX block fully powered, ready to reply within a Response Timeout period of 300us. This state is useful in a MST dock + MST monitor configuration that doesn't wake up from D3 state. v2: Use spaces instead of tabs (Jani) Reviewed-by:
Harry Wentland <harry.wentland@amd.com> Signed-off-by:
Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Signed-off-by:
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- 21 Oct, 2017 1 commit
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Harsha Sharma authored
Replace use of list_for_each with list_for_each_entry to simplify the code and remove variables that are used only in list_for_each. Done with following coccinelle patch: @r@ identifier fn,i,f,p; expression e; iterator name list_for_each, list_for_each_entry; type T; @@ fn(...) { ++ T *i; <+... - list_for_each(p,e) + list_for_each_entry(i,e,f) { ... - T *i = list_entry(p,T,f); ... } ...+> } @@ identifier r.fn,r.p; @@ fn(...) { ... - struct list_head *p; ... when != p } @@ identifier r.fn,r.i,r.f; expression r.e; statement S; @@ fn(...) { <... list_for_each_entry(i,e,f) - { S - } ...> } @s@ identifier i,f,p; expression e; type T; @@ - list_for_each(p,e) + list_for_each_entry(i,e,f) { ... when != T *i; - i = list_entry(p,T,f); ... } @@ identifier s.p; @@ - struct list_head *p; ... when != p @@ identifier s.i,s.f; expression s.e; statement S; @@ list_for_each_entry(i,e,f) - { S - } Signed-off-by:Harsha Sharma <harshasharmaiitr@gmail.com> Reviewed-by:
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- 20 Oct, 2017 4 commits
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Sean Paul authored
I didn't catch this before applying, just right after (of course). Fixes: ../drivers/gpu/drm/rockchip/analogix_dp-rockchip.c: In function ‘rockchip_dp_of_probe’: ../drivers/gpu/drm/rockchip/analogix_dp-rockchip.c:276:6: warning: unused variable ‘ret’ [-Wunused-variable] int ret; ^~~ Fixes: 102712a3 ("drm/rockchip: analogix_dp: Remove unnecessary init code") Cc: Jeffy Chen <jeffy.chen@rock-chips.com> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Acked-by: -
Haneen Mohammed authored
Remove old comment style used by doxygen. And remove comment left from commit 99cdb35e ("drm/doc: move printf helpers out of drmP.h") after refactoring drmP.h. Signed-off-by:
Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by:
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Haneen Mohammed authored
This patch extract DRM_* debug macros from drmP.h to drm_print.h and move printing related functions used by these macros from drm_drv.[hc] to drm_print.[hc]. Signed-off-by:
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Jeffy Chen authored
Remove unnecessary init code, since we would do it in the power_on() callback. Also move of parse code to probe(). Fixes: 9e32e16e ("drm: rockchip: dp: add rockchip platform dp driver") Signed-off-by:
Jeffy Chen <jeffy.chen@rock-chips.com> Acked-by:
Mark Yao <mark.yao@rock-chips.com> Signed-off-by:
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- 19 Oct, 2017 3 commits
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Eric Anholt authored
VC4's DSI1 has a bug where the AXI connection is broken for 32-bit writes from the CPU, so we use the DMA engine to DMA 32-bit values into registers instead. That sleeps, so we can't do it from the top half. As a solution, use an interrupt thread so that all our writes happen when sleeping is is allowed. v2: Use IRQF_ONESHOT (suggested by Boris) v3: Style nitpicks. Signed-off-by:
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Boris Brezillon authored
This ioctl will allow us to purge inactive userspace buffers when the system is running out of contiguous memory. For now, the purge logic is rather dumb in that it does not try to release only the amount of BO needed to meet the last CMA alloc request but instead purges all objects placed in the purgeable pool as soon as we experience a CMA allocation failure. Note that the in-kernel BO cache is always purged before the purgeable cache because those objects are known to be unused while objects marked as purgeable by a userspace application/library might have to be restored when they are marked back as unpurgeable, which can be expensive. Signed-off-by:
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Lucas Stach authored
Only exposes a single mode and not a complete display timing, as the datasheet is rather vague about the minimum/maximum values. Signed-off-by:
Lucas Stach <l.stach@pengutronix.de> Acked-by:
Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171018172240.8772-1-l.stach@pengutronix.de
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- 18 Oct, 2017 8 commits
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Frank Binns authored
Signed-off-by:
Frank Binns <frank.binns@imgtec.com> Reviewed-by:
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Philipp Zabel authored
The delays between video data and backlight enable and between backlight disable and end of video data are given as >= 160 ms in the datasheet. Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Tested-by:
Marco Franchi <marco.franchi@nxp.com> Signed-off-by:
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Philipp Zabel authored
For LCD interface controllers that support configuring polarity of pixel clock and data enable signal, specify bus flags in the panel descriptor. Signed-off-by:
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Philipp Zabel authored
The vsync length should be 10 lines, as specified in the data sheet. This gets the actual refresh rate closer to nominal 60 Hz given the 9 MHz pixel clock. Signed-off-by:
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Daniel Vetter authored
At least when they have vblank support they need to call this, or the vblank core will happily call into their crtc->enable_vblank callback even when the crtc is off. Which leads to a boom when the clocks are off on most hardware (besides the inevitable confusion in the book-keeping). The consistency checks in drm_vblank.c will then make sure that vblank_off/on calls are balanced, and if drivers forget to re-enable it all the commits will stall, so I think we're covered. It'd be nice to be able to place this check outside of commit helpers, but tha's not really possible (due to nonblocking commits and all that). Placing it into atomic helpers should at least cover most drivers. Also note that vblank support is still optional (for virtual drivers, which tend to not have this), check for that. v2: Fixup the handling for vblank_put (Rob). Cc: Rob Clark <robdclark@gmail.com> Tested-by:
Rob Clark <robdclark@gmail.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Daniel Vetter authored
Inspired by discussions with Keith and Ville. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Keith Packard <keithp@keithp.com> Acked-by:
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Bjorn Helgaas authored
The default VGA device is normally set in vga_arbiter_add_pci_device() when we call it for the first enabled device that can be accessed with the legacy VGA resources ([mem 0xa0000-0xbffff], etc.) That default device can be overridden by an EFI device that owns the boot framebuffer. As a fallback, we can also select a VGA device that can't be accessed via legacy VGA resources, or a VGA device that isn't even enabled. Factor out this EFI and fallback selection from vga_arb_device_init() into a separate vga_arb_select_default_device() function. This doesn't change any behavior, but it untangles the "bridge control possible" checking and messages from the default device selection. Tested-by: Zhou Wang <wangzhou1@hisilicon.com> # D05 Hisi Hip07, Hip08 Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Acked-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
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Bjorn Helgaas authored
Daniel Axtens reported that on the HiSilicon D05 board, the VGA device is behind a bridge that doesn't support PCI_BRIDGE_CTL_VGA, so the VGA arbiter never selects it as the default, which means Xorg auto-detection doesn't work. VGA is a legacy PCI feature: a VGA device can respond to addresses, e.g., [mem 0xa0000-0xbffff], [io 0x3b0-0x3bb], [io 0x3c0-0x3df], etc., that are not configurable by BARs. Consequently, multiple VGA devices can conflict with each other. The VGA arbiter avoids conflicts by ensuring that those legacy resources are only routed to one VGA device at a time. The arbiter identifies the "default VGA" device, i.e., a legacy VGA device that was used by boot firmware. It selects the first device that: - is of PCI_CLASS_DISPLAY_VGA, - has both PCI_COMMAND_IO and PCI_COMMAND_MEMORY enabled, and - has PCI_BRIDGE_CTL_VGA set in all upstream bridges. Some systems don't have such a device. For example, if a host bridge doesn't support I/O space, PCI_COMMAND_IO probably won't be enabled for any devices below it. Or, as on the HiSilicon D05, the VGA device may be behind a bridge that doesn't support PCI_BRIDGE_CTL_VGA, so accesses to the legacy VGA resources will never reach the device. This patch extends the arbiter so that if it doesn't find a device that meets all the above criteria, it selects the first device that: - is of PCI_CLASS_DISPLAY_VGA and - has PCI_COMMAND_IO or PCI_COMMAND_MEMORY enabled If it doesn't find even that, it selects the first device that: - is of class PCI_CLASS_DISPLAY_VGA. Such a device may not be able to use the legacy VGA resources, but most drivers can operate the device without those. Setting it as the default device means its "boot_vga" sysfs file will contain "1", which Xorg (via libpciaccess) uses to help select its default output device. This fixes Xorg auto-detection on some arm64 systems (HiSilicon D05 in particular; see the link below). It also replaces the powerpc fixup_vga() quirk, albeit with slightly different semantics: the quirk selected the first VGA device we found, and overrode that selection with any enabled VGA device we found. If there were several enabled VGA devices, the *last* one we found would become the default. The code here instead selects the *first* enabled VGA device we find, and if none are enabled, the first VGA device we find. Link: http://lkml.kernel.org/r/20170901072744.2409-1-dja@axtens.net Tested-by: Daniel Axtens <dja@axtens.net> # arm64, ppc64-qemu-tcg Tested-by: Zhou Wang <wangzhou1@hisilicon.com> # D05 Hisi Hip07, Hip08 Signed-off-by:
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