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path: root/drivers/gpu/drm/stm
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2019-05-20drm: Remove users of drm_format_info_plane_cppMaxime Ripard1-1/+1
drm_format_info_plane_cpp() basically just returns the cpp array content found in the drm_format_info structure. Since it's pretty trivial, let's remove the function and have the users use the array directly Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/c0a78c87cd0410a1819edad2794ad06543c85bb5.1558002671.git-series.maxime.ripard@bootlin.com
2019-05-20drm/fourcc: Pass the format_info pointer to drm_format_plane_cppMaxime Ripard1-1/+1
So far, the drm_format_plane_cpp function was operating on the format's fourcc and was doing a lookup to retrieve the drm_format_info structure and return the cpp. However, this is inefficient since in most cases, we will have the drm_format_info pointer already available so we shouldn't have to perform a new lookup. Some drm_fourcc functions also already operate on the drm_format_info pointer for that reason, so the API is quite inconsistent there. Let's follow the latter pattern and remove the extra lookup while being a bit more consistent. In order to be extra consistent, also rename that function to drm_format_info_plane_cpp and to a static function in the header to match the current policy. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/32aa13e53dbc98a90207fd290aa8e79f785fb11e.1558002671.git-series.maxime.ripard@bootlin.com
2019-05-17drm/stm: dsi: add regulator supportYannick Fertré1-11/+49
Add support of regulator for the phy part of the DSI controller. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1557826556-10079-3-git-send-email-yannick.fertre@st.com
2019-05-06drm/stm: ltdc: return appropriate error code during probeFabien Dessenne1-2/+3
During probe, return the "clk_get" error value instead of -ENODEV. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1556114601-30936-3-git-send-email-fabien.dessenne@st.com
2019-05-06drm/stm: ltdc: manage the get_irq probe defer caseFabien Dessenne1-0/+3
Manage the -EPROBE_DEFER error case for the ltdc IRQ. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1556114601-30936-2-git-send-email-fabien.dessenne@st.com
2019-04-24drm/stm: ltdc: add modifier supportYannick Fertré1-1/+20
Add support of DRM_FORMAT_MOD_LINEAR modifier. Signed-off-by: Mickael Reulier <mickael.reulier@st.com> Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/1554283514-2960-1-git-send-email-yannick.fertre@st.com Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
2019-04-24drm/stm: ltdc: reset controller to avoid partial refreshYannick Fertré1-5/+6
Display controller reset must be done as soon as possible after enable the clock to avoid partial refresh on screen. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1554283453-2879-1-git-send-email-yannick.fertre@st.com
2019-04-24drm/stm: ltdc: limit number of layer to avoid memory overflowYannick Fertré1-2/+5
If the number of layer is greater than LTDC_MAX_LAYER, we can have memory overflow when reading plane_fpsi[]. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1554283216-2700-1-git-send-email-yannick.fertre@st.com
2019-04-24drm/stm: ltdc: update planes at next vblank to avoid partial refreshYannick Fertré1-2/+2
Plane updates must be synchronized on vblank with the shadow register mechanism to avoid partial refresh on screen. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1554103457-29595-1-git-send-email-yannick.fertre@st.com
2019-04-24drm/stm: ltdc: fix data enable polarityYannick Fertré1-1/+1
Wrong DISPLAY_FLAGS used to set the data enable polarity. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1553874620-31468-1-git-send-email-yannick.fertre@st.com
2019-04-24drm/stm: ltdc: use DRM_WARN for fifo & transfer error messagesPhilippe Cornu1-2/+2
Use DRM_WARN() instead of DRM_DEBUG_DRIVER() to better inform the user in case of fifo underruns or transfer errors. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1553874548-31366-1-git-send-email-yannick.fertre@st.com
2019-04-24drm/stm: ltdc: disable hw interrupts before its handler initYannick Fertré1-4/+4
Interrupt register must be disabled before call of devm_request_threaded_irq function to avoid dummy interruption. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1553874485-31259-1-git-send-email-yannick.fertre@st.com
2019-04-01drm/stm: add sleep power managementYannick Fertré3-0/+62
Implements system sleep power management ops. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1553156120-13851-1-git-send-email-yannick.fertre@st.com
2019-04-01drm/stm: dw_mipi_dsi-stm: add sleep power managementYannick Fertré1-0/+28
Implements system sleep power management ops. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1553156033-13792-1-git-send-email-yannick.fertre@st.com
2019-03-11drm/stm: fix CONFIG_FB dependencyArnd Bergmann1-1/+1
The DRM_STM driver can be built independently of the framebuffer layer, but it causes a Kconfig warning: WARNING: unmet direct dependencies detected for FB_PROVIDE_GET_FB_UNMAPPED_AREA Depends on [n]: HAS_IOMEM [=y] && FB [=n] Selected by [y]: - DRM_STM [=y] && HAS_IOMEM [=y] && DRM [=y] && (ARCH_STM32 [=n] || ARCH_MULTIPLATFORM [=y]) Selecting FB_PROVIDE_GET_FB_UNMAPPED_AREA actually has no effect if CONFIG_FB is disabled, so we can make it a conditional 'select' instead. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190307155323.2949975-1-arnd@arndb.de
2019-01-24drm: Split out drm_probe_helper.hDaniel Vetter2-2/+2
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
2019-01-24drm/stm: prepare for drmP.h removal from drm_modeset_helper.hSam Ravnborg2-2/+13
The use of drmP.h is discouraged and removal of it from drm_modeset_helper.h caused drm/stm to fail to build. This patch introduce the necessary fixes to prepare for the drmP.h removal from drm_modeset_helper.h. Build tested on arm and x86 allmodconfig v2: - sort list of include files Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190119084014.5355-2-sam@ravnborg.org
2019-01-24Merge drm/drm-next into drm-misc-nextMaxime Ripard1-1/+1
danvet needs a backmerge to ease the upcoming drmP.h rework Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-21drm/stm: ltdc: remove set but not used variable 'src_h'YueHaibing1-3/+1
Fixes gcc '-Wunused-but-set-variable' warning: drivers/gpu/drm/stm/ltdc.c: In function 'ltdc_plane_atomic_check': drivers/gpu/drm/stm/ltdc.c:694:13: warning: variable 'src_y' set but not used [-Wunused-but-set-variable] u32 src_x, src_y, src_w, src_h; ^ ^ drivers/gpu/drm/stm/ltdc.c:694:6: warning: variable 'src_x' set but not used [-Wunused-but-set-variable] u32 src_x, src_y, src_w, src_h; ^ Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1538131180-34108-1-git-send-email-yuehaibing@huawei.com
2019-01-14drm: bridge: Constify mode arguments to bridge .mode_set() operationLaurent Pinchart1-1/+1
The mode and ajusted_mode passed to the bridge .mode_set() operation should never be modified by the bridge (and are not in any of the existing bridge drivers). Make them const to make this clear. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-10-25drm/stm: Use drm_fbdev_generic_setup()Noralf Trønnes1-9/+2
The CMA helper is already using the drm_fb_helper_generic_probe part of the generic fbdev emulation. This patch makes full use of the generic fbdev emulation by using its drm_client callbacks. This means that drm_mode_config_funcs->output_poll_changed and drm_driver->lastclose are now handled by the emulation code. Additionally fbdev unregister happens automatically on drm_dev_unregister(). The drm_fbdev_generic_setup() call is put after drm_dev_register() in the driver. This is done to highlight the fact that fbdev emulation is an internal client that makes use of the driver, it is not part of the driver as such. If fbdev setup fails, an error is printed, but the driver succeeds probing. drm_fbdev_generic_setup() handles mode_config.num_connector being zero. In that case it retries fbdev setup on the next .output_poll_changed. Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Yannick Fertré <yannick.fertre@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180908134648.2582-15-noralf@tronnes.org
2018-09-27drm: stm: implement get_scanout_position functionBenjamin Gaignard3-0/+52
Hardware allow to read the position in scanout buffer so we can use this information to make wait of vblank more accurate. Active area bounds (start, end, total height) have already been computed and written in ltdc registers, read them and get the current line position to compute vpos value. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Tested-by: Yannick Fertré <yannick.fertre@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180629130140.16004-1-benjamin.gaignard@linaro.org
2018-07-13drm/stm: Replace drm_dev_unref with drm_dev_putThomas Zimmermann1-5/+5
This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180713080625.18256-1-tzimmermann@suse.de
2018-07-06drm/stm: ltdc: rework reset sequenceYannick Fertre1-1/+4
Reset must be properly assert before deassert. This is important if there is an early boot splash screen before the kernel start up. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Reviewed-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1530271355-5608-1-git-send-email-yannick.fertre@st.com
2018-07-06drm/stm: ltdc: filter mode pixel clock vs pad constraintYannick Fertre2-4/+13
Filter the requested mode pixel clock frequency according to the pad maximum supported frequency. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Reviewed-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1530271342-5532-1-git-send-email-yannick.fertre@st.com
2018-04-27drm/stm: ltdc: fix warnings in ltdc_plane_create()Philippe CORNU1-2/+2
"make C=1" returns 2 warnings in ltdc_plane_create() ("Using plain integer as NULL pointer"). This patch fixes them. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180419132804.8317-1-philippe.cornu@st.com
2018-04-27drm/stm: ltdc: add mode_valid()Philippe CORNU1-0/+38
Add mode_valid() function to filter modes according to available pll clock values and "preferred" modes. It is particularly useful for hdmi modes that require precise pixel clocks. Note that "preferred" modes are always accepted: - this is important for panels because panel clock tolerances are bigger than hdmi ones and there is no reason to not accept them (the fps may vary a little but it is not a problem). - the hdmi preferred mode will be accepted too, but userland will be able to use others hdmi "valid" modes if necessary. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180417114026.8709-1-philippe.cornu@st.com
2018-04-27drm/stm: ltdc: fix deferred endpoint managementPhilippe CORNU1-6/+5
When a driver related to one of the endpoints is deferred due to probe dependencies (i2c, spi...) but the other one is ready, ltdc probe continues and the deferred driver will never be probed again. The fix consists in waiting for all deferred endpoints before continuing the ltdc probe. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180417113441.8214-1-philippe.cornu@st.com
2018-04-19drm/stm: ltdc: fix warning in ltdc_crtc_update_clut()Philippe CORNU1-3/+0
Fix the warning "warn: variable dereferenced before check 'crtc' (see line 390)" by removing unnecessary checks as ltdc_crtc_update_clut() is only called from ltdc_crtc_atomic_flush() where crtc and crtc->state are not NULL. Many thanks to Dan Carpenter for the bug report https://lists.freedesktop.org/archives/dri-devel/2018-February/166918.html Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: yannick fertre <yannick.fertre@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180410135312.3553-1-philippe.cornu@st.com
2018-04-19drm/stm: ltdc: add user update info in plane print statePhilippe CORNU2-0/+30
This patch adds the user update information in frames-per-second into the drm debugfs plane state. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Vincent Abriou <vincent.abriou@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180407213503.30932-1-philippe.cornu@st.com
2018-04-19drm/stm: move enable/disable_vblank to crtcPhilippe CORNU3-8/+6
enable/disable_vblank() functions at drm_driver level are deprecated. Move them to the ltdc drm_crtc_funcs structure. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Vincent Abriou <vincent.abriou@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180407212937.30407-1-philippe.cornu@st.com
2018-02-23drm/stm: check pitch and size calculations even if !CONFIG_MMUBenjamin Gaignard1-2/+0
In all cases we have to check pitch and size calculations to speed up data transfer. Fixes: 21f815bf773c ("drm/stm: drv: Improve data transfers") Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Tested-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Philippe Cornu <philippe.cornu@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180131080508.14356-1-benjamin.gaignard@linaro.org
2018-02-08drm/stm: ltdc: remove non-alpha color formats on layer 2 for older hwPhilippe CORNU2-0/+21
Hw older versions support non-alpha color formats derived from native alpha color formats only on the primary layer. For instance, RG16 native format without alpha works fine on 2nd layer but XR24 (derived color format from AR24) does not work on 2nd layer. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180201104243.20726-3-philippe.cornu@st.com
2018-02-08drm/stm: ltdc: add non-alpha color formatsPhilippe CORNU1-2/+31
ltdc supports natively some color formats with alpha (like ARGB8888, ARGB1555, ARGB4444...). Related non-alpha formats are supported too (ARGB8888->XRGB8888, ARGB4444->XRGB4444...) by adjusting ltdc blending factors. Note: Wayland/Weston requests by default the non-alpha XRGB8888 color format. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180201104243.20726-2-philippe.cornu@st.com
2018-01-30drm/stm: drv: Improve data transfersPhilippe Cornu1-1/+19
To optimize data transfers, align pitch on 128 bytes & height on 4 bytes. This optimization is not applicable on hw without MMU. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Vincent Abriou <vincent.abriou@st.com> 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/20180130104200.21602-1-philippe.cornu@st.com
2018-01-30drm/stm: dsi: Add 1.31 version supportPhilippe CORNU1-9/+30
Add support for the stm dsi phy/wrapper version 1.31. Only lane capabilities need to be modified. 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/20180122164628.24728-1-philippe.cornu@st.com
2018-01-29drm/stm: ltdc: use crtc_mode_fixup to update adjusted_mode clockPhilippe CORNU1-10/+25
There is a difference between the panel/bridge requested pixel clock value and the real one due to the hw platform clock preciseness (pll, dividers...). This patch updates the adjusted_mode clock value with the real hw clock value so then attached encoder & connector can use it for precise timing computations. Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Yannick Fertré <yannick.fertre@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180125160101.9102-1-philippe.cornu@st.com
2018-01-09drm/bridge/synopsys: stop clobbering drvdataBrian Norris1-5/+9
Bridge drivers/helpers shouldn't be clobbering the drvdata, since a parent driver might need to own this. Instead, let's return our 'dw_mipi_dsi' object and have callers pass that back to us for removal. Signed-off-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Archit Taneja <architt@codeaurora.org> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171128010538.119114-1-briannorris@chromium.org
2018-01-09drm/stm: ltdc: add clut mode supportPhilippe CORNU1-0/+30
Add the 8-bit clut mode support at crtc level. Useful for low memory footprint user interfaces but also for 8-bit old games (including color shifting visual effects). Tested with fbdev FBIOPUTCMAP & drm DRM_IOCTL_MODE_SETGAMMA ioctls. 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/1509016666-18927-1-git-send-email-philippe.cornu@st.com
2017-12-19drm/stm: ltdc: Remove unnecessary platform_get_resource() error checkFabio Estevam1-6/+0
devm_ioremap_resource() already checks if the resource is NULL, so remove the unnecessary platform_get_resource() error check. Cc: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1513602150-7542-6-git-send-email-festevam@gmail.com
2017-12-19drm/stm: dsi: Remove unnecessary platform_get_resource() error checkFabio Estevam1-5/+0
devm_ioremap_resource() already checks if the resource is NULL, so remove the unnecessary platform_get_resource() error check. Cc: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1513602150-7542-5-git-send-email-festevam@gmail.com
2017-12-08drm/stm: Use drm_fb_cma_fbdev_init/fini()Noralf Trønnes2-33/+6
Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on the fact that drm_device holds a pointer to the drm_fb_helper structure. This means that the driver doesn't have to keep track of that. Also use the drm_fb_helper functions directly. Remove duplicate ldev assignment. Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Philippe Cornu <philippe.cornu@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171115142001.45358-14-noralf@tronnes.org
2017-12-06gpu: drm: stm: Adopt SPDX identifiersBenjamin Gaignard4-8/+4
Add SPDX identifiers to files under stm directory Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Acked-by: Vincent Abriou <vincent.abriou@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171206112947.9569-1-benjamin.gaignard@st.com
2017-11-07drm/stm: ltdc: add a 2nd endpointPhilippe CORNU1-19/+45
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
2017-11-07drm/stm: checkpatch strict minor updatesPhilippe CORNU2-3/+3
Minor fixes detected with "scripts/checkpatch.pl --strict" Signed-off-by: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1509013473-18365-1-git-send-email-philippe.cornu@st.com
2017-11-07drm/stm: dsi: Rename driver namePhilippe CORNU1-1/+1
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: Philippe Cornu <philippe.cornu@st.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1509012290-16906-1-git-send-email-philippe.cornu@st.com
2017-10-10drm/stm: ltdc: remove bridge from driver internal structurebenjamin.gaignard@linaro.org2-13/+5
With a call to drm_of_panel_bridge_remove() we could remove the bridge without store it in ldtc internal driver structure. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Reviewed-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Philippe Cornu <philippe.cornu@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/1506936888-23844-4-git-send-email-benjamin.gaignard@linaro.org
2017-09-08drm/stm: fix warning about multiplication in conditionArnd Bergmann1-3/+5
gcc-7 complains about multiplying within a condition being suspicious: drivers/gpu/drm/stm/dw_mipi_dsi-stm.c: In function 'dsi_pll_get_clkout_khz': drivers/gpu/drm/stm/dw_mipi_dsi-stm.c:117:10: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context] The code here is correct, but can be easily rephrased to make that more obvious. I also swap out the error handling and the normal code path for clarity. Fixes: b0f09a3c69d9 ("drm/stm: Add STM32 DSI controller driver") Acked-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20170906131331.2691300-1-arnd@arndb.de
2017-09-02drm/stm: Use drm_gem_fb_create()Noralf Trønnes1-1/+2
drm_fb_cma_create() is just a wrapper around drm_gem_fb_create() now, so use the function directly. Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Philippe Cornu <philippe.cornu@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/1502631125-13557-18-git-send-email-noralf@tronnes.org
2017-08-08drm: Nuke drm_atomic_helper_plane_set_propertyDaniel Vetter1-1/+0
It's dead code, the core handles all this directly now. This also allows us to unexport drm_atomic_plane_set_property. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Brian Starkey <brian.starkey@arm.com> Cc: Mali DP Maintainers <malidp@foss.arm.com> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Jyri Sarha <jsarha@ti.com> Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> Cc: Rongrong Zou <zourongrong@gmail.com> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Eric Engestrom <eric@engestrom.ch> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Rob Clark <robdclark@gmail.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: intel-gfx@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-6-daniel.vetter@ffwll.ch Reviewed-by: Archit Taneja <architt@codeaurora.org> Acked-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Philippe Cornu <philippe.cornu@st.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Vincent Abriou <vincent.abriou@st.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-07 12:32:56 +0300