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| * | | drm: mali-dp: use div_u64 for expensive 64-bit divisionsArnd Bergmann2017-04-261-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On 32-bit machines, we can't divide 64-bit integers: drivers/gpu/drm/arm/malidp_crtc.o: In function `malidp_crtc_atomic_check': malidp_crtc.c:(.text.malidp_crtc_atomic_check+0x3c0): undefined reference to `__aeabi_uldivmod' malidp_crtc.c:(.text.malidp_crtc_atomic_check+0x3dc): undefined reference to `__aeabi_uldivmod' This calls the div_u64 function explicitly instead. Fixes: 4cea4e9f6690 ("drm: mali-dp: Add plane upscaling support") Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | drm: mali-dp: Check the mclk rate and allow up/down scalingMihail Atanassov2017-04-243-12/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When downscaling, mclk needs to be sufficiently higher than pxlclk in order to be able to fetch the higher-resolution data and produce output pixels. When not scaling, or when upscaling, mclk can be equal to pxlclk. Since the driver doesn't control mclk, just ensure that the requirement is satisfied with the current clock rate. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: Enable image enhancement when scalingMihail Atanassov2017-04-244-1/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Apply image enhacement when we are upscaling by a factor of 2 or more in either direction. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: Add plane upscaling supportMihail Atanassov2017-04-247-17/+407
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable the scaling engine for upscaling a single plane using the polyphase scaler. No image enhancement support or downscaling yet*, and composition result scaling is not implemented. * Downscaling a plane requires mclk > pxlclk. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm/mali-dp: Add core_id file to the sysfs interfaceLiviu Dudau2017-04-242-0/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a core_id file in the driver's sysfs directory, exposing the hardware CORE ID. This is useful to allow userspace to discover the hardware version used. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: Add CTM supportMihail Atanassov2017-04-245-4/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All DPs have a COLORADJ matrix which is applied prior to output gamma. Attach that to the CTM property. Also, ensure the input CTM's coefficients can fit in the DP registers' Q3.12 format. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: enable gamma supportMihail Atanassov2017-04-246-9/+196
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add gamma via the DRM GAMMA_LUT/GAMMA_LUT_SIZE CRTC properties. The expected LUT size is 4096 in order to produce as accurate a set of segments as possible. This version uses only the green channel's gamma curve to set the hardware curve on DP550/650. For the sake of simplicity, it uses the same table of coefficients for all 3 curves on DP500. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
| * | | drm: mali-dp: add malidp_crtc_state structMihail Atanassov2017-04-242-3/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a custom CRTC state struct to enable storing driver's private state. This patch only adds the base drm_crtc_state struct and the atomic functions that handle it. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: add custom reset hook for planesMihail Atanassov2017-04-241-1/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we are using a custom plane state in mali-dp, we need a bespoke reset that takes into account the larger structure. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> [Updated commit message] Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: remove unused variableArnd Bergmann2017-04-241-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The newly introduced function causes a harmless build warning: drivers/gpu/drm/arm/malidp_planes.c: In function 'malidp_plane_atomic_print_state': drivers/gpu/drm/arm/malidp_planes.c:98:23: error: unused variable 'mp' [-Werror=unused-variable] The variable serves no purpose here and can be removed. Fixes: 242f43b69c61 ("drm: mali-dp: add atomic_print_state for planes") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: add atomic_print_state for planesMihail Atanassov2017-04-241-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add function to dump the state of the plane. Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: Enable power management for the device.Liviu Dudau2017-04-244-23/+125
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable runtime and system Power Management. Clocks are now managed from malidp_crtc_{enable,disable} functions. Suspend-to-RAM tested as working on Juno. Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
| * | | drm: mali-dp: Update the state of all planes before re-enabling active CRTCs.Liviu Dudau2017-04-241-4/+8
|/ / / | | | | | | | | | | | | | | | | | | | | | Mali DP needs to have all the planes that are becoming inactive in the new state disabled before re-enabling the active CRTC, otherwise we start streaming out data from old pointers in memory. Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
* | | Merge tag 'drm-misc-next-fixes-2017-04-20' of ↵Dave Airlie2017-04-2117-70/+71
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/git/drm-misc into drm-next drm-misc-next-fixes-2017-04-20 Core changes: - Maintain sti via drm-misc (Vincent) - Rename dma_buf_ops->kmap_* to avoid naming collision (Logan) Driver changes: - Fix UHD displays on stih407 (Vincent) - Fix uninitialized var return in atmel-hlcdc (Dan) * tag 'drm-misc-next-fixes-2017-04-20' of git://anongit.freedesktop.org/git/drm-misc: dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro drm: atmel-hlcdc: Uninitialized return in atmel_hlcdc_create_outputs() drm/sti: fix GDP size to support up to UHD resolution MAINTAINERS: add drm/sti driver into drm-misc
| * | | dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macroLogan Gunthorpe2017-04-2014-61/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Seeing the kunmap_atomic dma_buf_ops share the same name with a macro in highmem.h, the former can be aliased if any dma-buf user includes that header. I'm personally trying to include highmem.h inside scatterlist.h and this breaks the dma-buf code proper. Christoph Hellwig suggested [1] renaming it and pushing this patch ASAP. To maintain consistency I've renamed all four of kmap* and kunmap* to be map* and unmap*. (Even though only kmap_atomic presently conflicts.) [1] https://www.spinics.net/lists/target-devel/msg15070.html Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/1492630570-879-1-git-send-email-logang@deltatee.com
| * | | drm: atmel-hlcdc: Uninitialized return in atmel_hlcdc_create_outputs()Dan Carpenter2017-04-181-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's not possible for endpoint to be zero so the test doesn't work. If we break on the first iteration through the loop then endpoint is 1 and "ret" is uninitialized. Fixes: ebc944613567 ("drm: convert drivers to use drm_of_find_panel_or_bridge") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170415192142.GA6416@mwanda
| * | | drm/sti: fix GDP size to support up to UHD resolutionVincent Abriou2017-04-131-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On stih407-410 chip family the GDP layers are able to support up to UHD resolution (3840 x 2160). Signed-off-by: Vincent Abriou <vincent.abriou@st.com> Acked-by: Lee Jones <lee.jones@linaro.org> Tested-by: Lee Jones <lee.jones@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/1490280292-30466-1-git-send-email-vincent.abriou@st.com
| * | | MAINTAINERS: add drm/sti driver into drm-miscVincent Abriou2017-04-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drm/sti driver is now part of drm-misc as a small driver. Signed-off-by: Vincent Abriou <vincent.abriou@st.com> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/1491835958-30229-1-git-send-email-vincent.abriou@st.com
* | | | Merge tag 'sunxi-drm-for-4.12' of ↵Dave Airlie2017-04-2015-107/+164
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next Allwinner DRM changes for 4.12 Not any functional changes, but a lot of preliminary rework in order to support multiple display pipelines. * tag 'sunxi-drm-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (26 commits) MAINTAINERS: Add sun4i-drm git repo drm/sun4i: Pass pointer for underlying backend into layer init drm/sun4i: Pass pointers for associated backend and tcon into crtc init drm/sun4i: tv: Get tcon and backend pointers from associated crtc drm/sun4i: Use embedded tcon pointer to get the tcon's output port node drm/sun4i: Fix tcon channel 0 comment about backporch = backporch + hsync drm/sun4i: Fix TCON clock and regmap initialization sequence drm/sun4i: Grab reserved memory region drm/sun4i: Add backend and tcon pointers to sun4i_crtc drm/sun4i: Add backend pointer to sun4i_layer drm/sun4i: rgb: Pass tcon pointer when initializing RGB encoder drm/sun4i: tv: Switch to drm_of_find_possible_crtcs drm/sun4i: Drop hardcoded .possible_crtcs values from layers drm/sun4i: Drop primary layer pointer from sun4i_drv drm/sun4i: Initialize crtc from tcon bind function drm/sun4i: Move layers from sun4i_drv to sun4i_crtc drm/sun4i: Add end of list element for sun4i_layers_init's returned list drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node drm/sun4i: Make sunxi_rgb2yuv_coef constant drm/sun4i: Make sun4i_crtc_init return ERR_PTR style error codes ...
| * | | | MAINTAINERS: Add sun4i-drm git repoMaxime Ripard2017-04-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the git tree where the sun4i-drm patches are hosted. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Pass pointer for underlying backend into layer initChen-Yu Tsai2017-03-093-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sun4i_layer only controls the backend hardware block of the display pipeline. Pass pointers to the underlying backend in the layer init function, instead of trying to fetch it from the drm_device structure. This avoids the headache of trying to figure out which device the layers actually belong to. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Pass pointers for associated backend and tcon into crtc initChen-Yu Tsai2017-03-093-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sun4i_crtc controls the backend and tcon hardware blocks of the display pipeline. Pass pointers to the underlying devices into the crtc init function, instead of trying to fetch them from the drm_device structure. This avoids the headache of trying to figure out which devices the crtc is actually associated with. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: tv: Get tcon and backend pointers from associated crtcChen-Yu Tsai2017-03-091-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The drm_encoder structure provides us with a pointer to the crtc currently tied to the encoder. Subsequently we can extract the tcon and backend pointers from our crtc structure, instead of getting it directly from the sun4i_drv structure. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Use embedded tcon pointer to get the tcon's output port nodeChen-Yu Tsai2017-03-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A pointer to the underlying tcon of the crtc was added to the sun4i_crtc structure in "drm/sun4i: Add backend and tcon pointers to sun4i_crtc". However the crtc init function was still using the copy from sun4i_drv to set drm_crtc.port. This was an oversight when the patches were reordered. Switch to using the embedded tcon pointer to get the tcon's ouptut port and assign it to drm_crtc.port. This makes it possible to remove the usage of sun4i_drv completely in subsequent patches. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Fix tcon channel 0 comment about backporch = backporch + hsyncChen-Yu Tsai2017-03-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The backporch programmed into the tcon registers is actually the backporch + hsync length from the display timings, as indicated in the interface timing diagrams found in the user manual of the A31 and A33 SoCs. The comments for channel 0 mistakenly describe the discrepancy as TCON backporch = frontporch + hsync. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Fix TCON clock and regmap initialization sequenceChen-Yu Tsai2017-03-091-7/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TCON driver calls sun4i_tcon_init_regmap and sun4i_tcon_init_clocks in its bind function. The former creates a regmap and writes to several register to clear its configuration to a known default. The latter initializes various clocks. This includes enabling the bus clock for register access and creating the dotclock. In order for the first step's writes to work, the bus clock must be enabled which is done in the second step. but the dotclock's ops use the regmap created in the first step. Rearrange the function calls such that the clocks are initialized before the regmap, and split out the dot clock creation to after the regmap is initialized. Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support") Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Grab reserved memory regionMaxime Ripard2017-03-071-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow to provide an optional memory region to allocate from for our DRM driver. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Add backend and tcon pointers to sun4i_crtcChen-Yu Tsai2017-03-072-12/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sun4i_crtc controls the backend and tcon hardware blocks of the display pipeline. Instead of doing so through the master drm structure, leave pointers to the corresponding backend and tcon in itself. Also drop the drm_device pointer, since it is no longer needed. The next step forward would be to pass the pointers in through sun4i_crtc_init as parameters. This would make it easier to support multiple display pipelines layer on. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Add backend pointer to sun4i_layerChen-Yu Tsai2017-03-072-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sun4i_layer only controls the backend hardware block of the display pipeline. Instead of getting a pointer to the underlying backend through the drm_device structure, leave one in itself. Also drop the drm_device pointer, since it is no longer needed. The next step forward would be to pass the pointer in through sun4i_layers_init as a parameter. This would make it easier to support multiple display pipelines layer on. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: rgb: Pass tcon pointer when initializing RGB encoderChen-Yu Tsai2017-03-073-20/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RGB encoder represents channel 0 of the TCON. Instead of fetching the pointer to its TCON from the main sun4i_drv structure, pass it in as part of the init call, save it, and use it directly in the encoder and connector callbacks. We can also drop the otherwise unused sun4i_drv pointer. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: tv: Switch to drm_of_find_possible_crtcsChen-Yu Tsai2017-03-071-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the crtcs have their .port field set properly, we can use drm_of_find_possible_crtcs to find the connected crtcs, instead of hardcoding the first crtc as usable. The new code also defers binding when the upstream crtc hasn't been registered yet. This makes it easier to support multiple tcons/crtcs. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Drop hardcoded .possible_crtcs values from layersChen-Yu Tsai2017-03-073-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To support multiple display pipelines, we would have multiple crtcs, with one or more planes bound to them. Obviously having hardcoded values for the drm_plane .possible_crtcs field is not going to work. For primary and cursor planes, the value is set by drm_crtc_init_with_planes. We just need to set it for overlay planes. We also fix the value set for the RGB encoder, by referencing the crtc set in sun4i_drv. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Drop primary layer pointer from sun4i_drvChen-Yu Tsai2017-03-073-8/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current layer init code keeps a pointer to the primary plane layer in sun4i_drv. When we eventually support multiple display pipelines, this would force us to keep track of primary planes for all crtcs. And these pointers only get used at bind time. Instead, have the crtc init code iterate through the returned layers to find the primary and cursor layers. And drop the pointer from the sun4i_drv structure. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Initialize crtc from tcon bind functionChen-Yu Tsai2017-03-075-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The tcon provides part of the functionality of the crtc, and also provides the device node for the output port of the crtc. To be able to use drm_of_find_possible_crtcs(), all crtc must be initialized before any downstream encoders. The other part of the crtc is the display backend. The Rockchip DRM driver does this by first binding all vops, which is their crtc, and this step also creates the crtc objects. Then all remaining hardware components are bound. With the Allwinner display pipeline, we have multiple components comprising the crtc, and varying depths of the display pipeline. Since components are added with a depth first search of the of_graph, we can initialize the crtc object within the tcon bind function. Since the backend precedes the tcon, and the backends cannot be muxed or switched around, we can be sure that the associated backend is already initialized. This patch also moves the crtc pointer from the main drm_device data to the tcon device data. Besides the crtc callbacks, the crtc structure is only used within the tcon driver to signal vblank events from its interrupt handler. As the crtc and layer bits are now called from the tcon bits, we must move them from the sun4i-drm module to the sun4i-tcon module to avoid circular dependencies between the two modules. This is because sun4i-drm also calls into sun4i-tcon. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Move layers from sun4i_drv to sun4i_crtcChen-Yu Tsai2017-03-074-11/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the sun4i_layers_init call from sun4i_drv_bind to sun4i_crtc_init, and the layers pointer from struct sun4i_drv to struct sun4i_crtc. The layers are bound to a specific crtc, and they are not directly used once initiated. They are used through their included drm_plane structures. Moving the layers into the crtc facilitates binding them to the crtc explicitly, by setting the corresponding bit in their .possible_crtcs fields right after the crtc is initialized. This is done in a later patch. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Add end of list element for sun4i_layers_init's returned listChen-Yu Tsai2017-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The number of defined planes in sun4i_layer is unknown to other parts of the sun4i drm driver. Since the return value of sun4i_layers_init is a list of layers, make it return 1 more empty layer as an end of list guard value. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Set drm_crtc.port to the underlying TCON's output port nodeChen-Yu Tsai2017-03-071-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The way drm_of_find_possible_crtcs works is it tries to match the remote-endpoint of the given node's various endpoints to all the crtc's .port field. Thus we need to set drm_crtc.port to the output port node of the underlying TCON. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Make sunxi_rgb2yuv_coef constantChen-Yu Tsai2017-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sunxi_rgb2yuv_coef is a table of RGB-to-YUV conversion coefficients. They are programmed into the hardware, and can be declared constant. Reported-by: Priit Laes <plaes@plaes.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Make sun4i_crtc_init return ERR_PTR style error codesChen-Yu Tsai2017-03-072-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sun4i_crtc_init can fail for a number of reasons. Instead of returning a NULL pointer when it fails, pass back the encountered error using ERR_PTR. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Save newly created layer in layers array in sun4i_layers_initChen-Yu Tsai2017-03-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sun4i_layers_init allocates an array to store pointers to newly created layers returned by sun4i_layer_init_one(), but fails to actually store them. But it actually returns the empty array to unsuspecting users. Save the pointers in the array, so that they may be used later. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Drop useless assignment in sun4i_layers_initChen-Yu Tsai2017-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The assignment found in the main loop in sun4i_layers_init: struct sun4i_layer *layer = layers[i]; is useless as it gets overwritten by the next line: layer = sun4i_layer_init_one(drm, plane); Drop the assignment. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Fix kcalloc element size in sun4i_layers_initChen-Yu Tsai2017-03-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In sun4i_layers_init we are allocating an array of pointers to struct sun4i_layer: layers = devm_kcalloc(drm->dev, ARRAY_SIZE(sun4i_backend_planes), sizeof(**layers), GFP_KERNEL); The element size should be the size of an individual element of the array. Change it to sizeof(*layers) to avoid wasting a lot of memory. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Check return value of drm_vblank_initChen-Yu Tsai2017-03-071-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drm_vblank_init can fail due to insufficient memory. Ignoring the error and proceeding may cause the kernel to dereference an invalid pointer when vblank is enabled. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Fix up error path cleanup for master bind functionChen-Yu Tsai2017-03-071-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The master bind function calls numerous drm functions which initialize underlying structures. It also tries to bind the various components of the display pipeline, some of which may add additional drm objects. This patch adds proper cleanup functions in the error path of the master bind function. This requires the patch "drm/sun4i: Move drm_mode_config_cleanup call to main driver", which splits out drm_mode_config_cleanup from sun4i_framebuffer_free so we can call it separately. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| * | | | drm/sun4i: Move drm_mode_config_cleanup call to main driverChen-Yu Tsai2017-03-072-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drm_mode_config_cleanup is the complement of drm_mode_config_init, which is called in the bind function of sun4i_drv. drm_mode_config_cleanup should be put in the unbind function to match. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* | | | | Merge tag 'v4.11-rc7' into drm-nextDave Airlie2017-04-19178-1078/+1991
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Backmerge Linux 4.11-rc7 from Linus tree, to fix some conflicts that were causing problems with the rerere cache in drm-tip.
| * | | | | Linux 4.11-rc7Linus Torvalds2017-04-161-1/+1
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| * | | | | Merge tag 'armsoc-fixes' of ↵Linus Torvalds2017-04-1616-41/+154
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Again, a batch that's been sitting a couple of weeks, mostly because I anticipated a bit more material but it didn't show up -- which is good. These are all your garden variety fixes for ARM platforms. The most visible issue fixed here is probably the SMP reset issue on OMAP, the rest are minor stuff" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: allwinner: a64: add pmu0 regs for USB PHY ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer reset: add exported __reset_control_get, return NULL if optional ARM: orion5x: only call into phylib when available ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend ARM: dts: ti: fix PCI bus dtc warnings ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY ARM: dts: OMAP3: Fix MFG ID EEPROM ARM: sun8i: a33: add operating-points-v2 property to all nodes ARM: sun8i: a33: remove highest OPP to fix CPU crashes
| | * \ \ \ \ Merge tag 'omap-for-v4.11/fixes-rc6-signed' of ↵Olof Johansson2017-04-1610-21/+110
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Regression fix for omap interconnect code for deferred probe. Without this fix we can get PM related warnings for devices that use deferred probe. If necessary, this fix can wait for the v4.12 merge window no problem. * tag 'omap-for-v4.11/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend ARM: dts: ti: fix PCI bus dtc warnings ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY ARM: dts: OMAP3: Fix MFG ID EEPROM Signed-off-by: Olof Johansson <olof@lixom.net>
| | | * | | | | ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe deferDave Gerlach2017-04-041-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting from commit 5de85b9d57ab ("PM / runtime: Re-init runtime PM states at probe error and driver unbind") pm_runtime core now changes device runtime_status back to after RPM_SUSPENDED after a probe defer. Certain OMAP devices make use of "ti,no-idle-on-init" flag which causes omap_device_enable to be called during the BUS_NOTIFY_ADD_DEVICE event during probe, along with pm_runtime_set_active. This call to pm_runtime_set_active typically will prevent a call to pm_runtime_get in a driver probe function from re-enabling the omap_device. However, in the case of a probe defer that happens before the driver probe function is able to run, such as a missing pinctrl states defer, pm_runtime_reinit will set the device as RPM_SUSPENDED and then once driver probe is actually able to run, pm_runtime_get will see the device as suspended and call through to the omap_device layer, attempting to enable the already enabled omap_device and causing errors like this: omap-gpmc 50000000.gpmc: omap_device: omap_device_enable() called from invalid state 1 omap-gpmc 50000000.gpmc: use pm_runtime_put_sync_suspend() in driver? We can avoid this error by making sure the pm_runtime status of a device matches the omap_device state before a probe attempt. By extending the omap_device bus notifier to act on the BUS_NOTIFY_BIND_DRIVER event we can check if a device is enabled in omap_device but with a pm_runtime status of RPM_SUSPENDED and once again mark the device as RPM_ACTIVE to avoid a second incorrect call to omap_device_enable. Fixes: 5de85b9d57ab ("PM / runtime: Re-init runtime PM states at probe error and driver unbind") Tested-by: Franklin S Cooper Jr. <fcooper@ti.com> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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