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* tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfersNoralf Trønnes2019-05-312-19/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit a89bfc5d9a0732d84b4de311e27133daa0586316 ] Buffers passed to spi_sync() must be dma-safe even for tiny buffers since some SPI controllers use DMA for all transfers. Example splat with CONFIG_DMA_API_DEBUG enabled: [ 23.750467] DMA-API: dw_dmac_pci 0000:00:15.0: device driver maps memory from stack [probable addr=000000001e49185d] [ 23.750529] WARNING: CPU: 1 PID: 1296 at kernel/dma/debug.c:1161 check_for_stack+0xb7/0x190 [ 23.750533] Modules linked in: mmc_block(+) spi_pxa2xx_platform(+) pwm_lpss_pci pwm_lpss spi_pxa2xx_pci sdhci_pci cqhci intel_mrfld_pwrbtn extcon_intel_mrfld sdhci intel_mrfld_adc led_class mmc_core ili9341 mipi_dbi tinydrm backlight ti_ads7950 industrialio_triggered_buffer kfifo_buf intel_soc_pmic_mrfld hci_uart btbcm [ 23.750599] CPU: 1 PID: 1296 Comm: modprobe Not tainted 5.0.0-rc7+ #236 [ 23.750605] Hardware name: Intel Corporation Merrifield/BODEGA BAY, BIOS 542 2015.01.21:18.19.48 [ 23.750620] RIP: 0010:check_for_stack+0xb7/0x190 [ 23.750630] Code: 8b 6d 50 4d 85 ed 75 04 4c 8b 6d 10 48 89 ef e8 2f 8b 44 00 48 89 c6 4a 8d 0c 23 4c 89 ea 48 c7 c7 88 d0 82 b4 e8 40 7c f9 ff <0f> 0b 8b 05 79 00 4b 01 85 c0 74 07 5b 5d 41 5c 41 5d c3 8b 05 54 [ 23.750637] RSP: 0000:ffff97bbc0292fa0 EFLAGS: 00010286 [ 23.750646] RAX: 0000000000000000 RBX: ffff97bbc0290000 RCX: 0000000000000006 [ 23.750652] RDX: 0000000000000007 RSI: 0000000000000002 RDI: ffff94b33e115450 [ 23.750658] RBP: ffff94b33c8578b0 R08: 0000000000000002 R09: 00000000000201c0 [ 23.750664] R10: 00000006ecb0ccc6 R11: 0000000000034f38 R12: 000000000000316c [ 23.750670] R13: ffff94b33c84b250 R14: ffff94b33dedd5a0 R15: 0000000000000001 [ 23.750679] FS: 0000000000000000(0000) GS:ffff94b33e100000(0063) knlGS:00000000f7faf690 [ 23.750686] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 23.750691] CR2: 00000000f7f54faf CR3: 000000000722c000 CR4: 00000000001006e0 [ 23.750696] Call Trace: [ 23.750713] debug_dma_map_sg+0x100/0x340 [ 23.750727] ? dma_direct_map_sg+0x3b/0xb0 [ 23.750739] spi_map_buf+0x25a/0x300 [ 23.750751] __spi_pump_messages+0x2a4/0x680 [ 23.750762] __spi_sync+0x1dd/0x1f0 [ 23.750773] spi_sync+0x26/0x40 [ 23.750790] mipi_dbi_typec3_command_read+0x14d/0x240 [mipi_dbi] [ 23.750802] ? spi_finalize_current_transfer+0x10/0x10 [ 23.750821] mipi_dbi_typec3_command+0x1bc/0x1d0 [mipi_dbi] Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190222124329.23046-1-noralf@tronnes.org Signed-off-by: Sasha Levin <sashal@kernel.org>
* drm/tinydrm: add backlight dependency for ili9341Arnd Bergmann2018-07-121-0/+1
| | | | | | | | | | | | | This tinydrm driver fails to link without the backlight support: drivers/gpu/drm/tinydrm/ili9341.o: In function `ili9341_probe': ili9341.c:(.text+0x578): undefined reference to `devm_of_find_backlight' Fixes: 3fa0e8f6f960 ("drm/tinydrm: new driver for ILI9341 display panels") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180709152106.990066-1-arnd@arndb.de
* drm/tinydrm: Fix doc build warningsNoralf Trønnes2018-07-111-0/+2
| | | | | | | | | | | | | include/drm/tinydrm/tinydrm.h:34: warning: Function parameter or member 'fb_dirty' not described in 'tinydrm_device' drivers/gpu/drm/tinydrm/mipi-dbi.c:272: warning: Function parameter or member 'crtc_state' not described in 'mipi_dbi_enable_flush' drivers/gpu/drm/tinydrm/mipi-dbi.c:272: warning: Function parameter or member 'plane_state' not described in 'mipi_dbi_enable_flush' Move struct member docs inline so it's not missed next time. Cc: David Lechner <david@lechnology.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180710150518.10528-1-noralf@tronnes.org
* drm/tinydrm: Use drm_fbdev_generic_setup()Noralf Trønnes2018-07-106-7/+1Star
| | | | | | | | | Make full use of the generic fbdev client. Cc: David Lechner <david@lechnology.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-8-noralf@tronnes.org
* Merge tag 'drm-misc-next-2018-06-27' of ↵Dave Airlie2018-06-283-0/+244
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.19: Cross-subsystem Changes: devicetree documentation dt-bindings defintions for sun8i (Jernej Skrabec) Core Changes: Consider drivers setting DRIVER_ATOMIC as atomic (Eric Anholt) Improvements for in-kernel clients (Noralf Trønnes) Export and rename drm_crtc_port_mask() (Jernej Skrabec) Driver Changes: v3d: Add looking for GPU scheduler jobs management (Eric Anholt) Add Ilitek ILI9881c panel driver(Maxime Ripard) rockchip: vop: fixup linebuffer mode calc error (Sandy Huang) tinydrm: new driver for ILI9341 display panels (David Lechner) sun4i: Add TCON TOP driver (Jernej Skrabec) Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180628010018.GA10929@juma
| * drm/tinydrm: new driver for ILI9341 display panelsDavid Lechner2018-06-273-0/+244
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a new driver for display panels that use the Ilitek ILI9341 controller. It currently supports a single display panel, namely the YX240QV29-T (e.g. Adafruit 2.4" TFT). The init sequence is from the Adafruit Python library for the ILI9341 controller. https://github.com/adafruit/Adafruit_Python_ILI9341 Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180525193623.15533-5-david@lechnology.com
* | treewide: kmalloc() -> kmalloc_array()Kees Cook2018-06-131-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
* drm/tinydrm/mi0283qt: Always set rotation valueTom Callaway2018-04-301-18/+23
| | | | | | | | | | | | | The PiTFT (ili9340) has a hardware reset circuit that resets only on power-on and not on each reboot through a gpio like the rpi-display does. As a result, we need to always apply the rotation value regardless of the display "on/off" state. Moved the rotation setting code below out_enable:. Signed-off-by: Tom Callaway <tcallawa@redhat.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180423161639.14420-1-tcallawa@redhat.com
* drm: Move simple_display_pipe prepare_fb helper into gem fb helpersDaniel Vetter2018-04-246-22/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | There's nothing tinydrm specific to this, and there's a few more copies of the same in various other drivers. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: David Lechner <david@lechnology.com> Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Daniel Stone <daniels@collabora.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Acked-by: David Lechner <david@lechnology.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180405154449.23038-3-daniel.vetter@ffwll.ch
* drm/tinydrm: Make fb_dirty into a lower level hookVille Syrjälä2018-03-288-77/+66Star
| | | | | | | | | | | | | | | | | | | | | | | | mipi_dbi_enable_flush() wants to call the fb->dirty() hook from the bowels of the .atomic_enable() hook. That prevents us from taking the plane mutex in fb->dirty() unless we also plumb down the acquire context. Instead it seems simpler to split the fb->dirty() into a tinydrm specific lower level hook that can be called from mipi_dbi_enable_flush() and from a generic higher level tinydrm_fb_dirty() helper. As we don't have a tinydrm specific vfuncs table we'll just stick it into tinydrm_device directly for now. v2: Deal with the fb->dirty() in tinydrm_display_pipe_update() as well (Noralf) Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: David Lechner <david@lechnology.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180323153509.15287-1-ville.syrjala@linux.intel.com Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Tested-by: Noralf Trønnes <noralf@tronnes.org>
* drm/simple-kms-helper: Plumb plane state to the enable hookVille Syrjälä2018-03-285-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | tinydrm enable hook wants to play around with the new fb in .atomic_enable(), thus we'll need access to the plane state. Performed with coccinelle: @r1@ identifier F =~ ".*enable$"; identifier P, CS; @@ F( struct drm_simple_display_pipe *P ,struct drm_crtc_state *CS + ,struct drm_plane_state *plane_state ) { ... } @@ struct drm_simple_display_pipe *P; expression E; @@ { + struct drm_plane *plane; ... + plane = &P->plane; P->funcs->enable(P ,E + ,plane->state ); ... } @@ identifier P, CS; @@ struct drm_simple_display_pipe_funcs { ... void (*enable)(struct drm_simple_display_pipe *P ,struct drm_crtc_state *CS + ,struct drm_plane_state *plane_state ); ... }; v2: Pimp the commit message (David) Cc: Marek Vasut <marex@denx.de> Cc: Eric Anholt <eric@anholt.net> Cc: David Lechner <david@lechnology.com> Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180322202738.25817-1-ville.syrjala@linux.intel.com Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
* drm/tinydrm: Use gem_free_object_unlockedDaniel Vetter2018-03-271-1/+1
| | | | | | | | | | tinydrm doesn't use dev->struct_mutex and therefore has no need to use gem_free_object. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: "Noralf Trønnes" <noralf@tronnes.org> Acked-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180322105133.11211-2-daniel.vetter@ffwll.ch
* tinydrm: add backlight dependencyArnd Bergmann2018-02-281-0/+2
| | | | | | | | | | | | | | | | | Calling devm_of_find_backlight directly means we get a link failure without CONFIG_BACKLIGHT_CLASS_DEVICE: drivers/gpu/drm/tinydrm/mi0283qt.o: In function `mi0283qt_probe': mi0283qt.c:(.text+0x684): undefined reference to `devm_of_find_backlight' This adds an explicit Kconfig dependency for it. While I did not observe that failure for st7735r, I assume the same change is needed there for the same reason. Fixes: d1a2e7004b5e ("drm/tinydrm: Replace tinydrm_of_find_backlight with of_find_backlight") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180228134111.2042877-1-arnd@arndb.de
* drm/tinydrm: Call devres version of of_find_backlightMeghana Madhyastha2018-02-202-2/+2
| | | | | | | | | | | Call devm_of_find_backlight (the devres version) instead of of_find_backlight. Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/244cd4d567cb3944a8cb7633715ffc8ac4e1ce83.1516810725.git.meghana.madhyastha@gmail.com
* drm/tinydrm: Replace tinydrm_of_find_backlight with of_find_backlightMeghana Madhyastha2018-02-204-44/+4Star
| | | | | | | | | | | | | | Remove tinydrm_of_find_backlight from tinydrm-helpers.c. We now have a generic of_find_backlight defined in backlight.c. Let the callers of tinydrm_of_find_backlight call of_find_backlight. Also, remove select BACKLIGHT_LCD_SUPPORT and select BACKLIGHT_CLASS_DEVICE from tinydrm/Kconfig as it is a hack that is no longer needed. Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/11dd1cabd098a730d07ab04c5987b139d14d8b21.1516810725.git.meghana.madhyastha@gmail.com
* drm/tinydrm: Convert tinydrm_enable/disable_backlight to ↵Meghana Madhyastha2018-02-202-57/+2Star
| | | | | | | | | | | | | backlight_enable/disable Remove tinydrm_enable/disable_backlight and let the callers call the more generic backlight_enable/disable helpers Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/ec700724e47814e6426966e093bd32b2364ba147.1516810725.git.meghana.madhyastha@gmail.com
* drm/tinydrm/mipi-dbi: Change reset active timeNoralf Trønnes2018-01-151-1/+1
| | | | | | | | | | The MIPI DBI spec states that reset active/low time should be more than 9us. Change from 20ms to 20us. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Tested-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-8-noralf@tronnes.org
* drm/tinydrm: Embed the mode in tinydrm_connectorNoralf Trønnes2018-01-151-21/+13Star
| | | | | | | | | | Embed the mode in tinydrm_connector instead of doing an devm_ allocation. Remove unnecessary use of ret variable at the end of tinydrm_display_pipe_init(). Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-7-noralf@tronnes.org
* drm/tinydrm/mi0283qt: Let the display pipe handle powerNoralf Trønnes2018-01-152-64/+15Star
| | | | | | | | | | It's better to leave power handling and controller init to the modesetting machinery using the simple pipe .enable and .disable callbacks. Remove unused mipi_dbi_pipe_enable(). Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-6-noralf@tronnes.org
* drm/tinydrm/mipi-dbi: Add poweron-reset functionsNoralf Trønnes2018-01-154-32/+81
| | | | | | | | | Split out common poweron-reset functionality. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Tested-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-5-noralf@tronnes.org
* drm/tinydrm/mipi-dbi: Add mipi_dbi_enable_flush()Noralf Trønnes2018-01-154-11/+23
| | | | | | | | Add and use a function for enabling, flushing and turning on backlight. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-4-noralf@tronnes.org
* drm/tinydrm/mi0283qt: Remove ili9341.hNoralf Trønnes2018-01-151-2/+26
| | | | | | | | | | | No need for a public header file for the command macros. Just include the necessary ones in the driver. Also use the MIPI_DCS_PIXEL_FMT_16BIT macro. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-3-noralf@tronnes.org
* drm/tinydrm/mi0283qt: Use common include orderNoralf Trønnes2018-01-151-5/+6
| | | | | | | | Include linux headers before drm headers as it's commonly done. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-2-noralf@tronnes.org
* drm/tinydrm: add driver for ST7735R panelsDavid Lechner2018-01-033-0/+226
| | | | | | | | | | | | This adds a new driver for Sitronix ST7735R display panels. This has been tested using an Adafruit 1.8" TFT. Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1514833336-22564-4-git-send-email-david@lechnology.com
* drm/tinydrm: Update ILI9225 compatible stringDavid Lechner2018-01-031-2/+2
| | | | | | | | | | | | | | | | This updates the compatible string for a no-name LCD panel to "vot,v220hf01a-t", "ilitek,ili9225". The original bindings were the generic "ilitek,ili9225-2.2in-176x220" because I could not find a datasheet. However, after some more research, I finally found one, so the actual vendor and model name are now known. This previous bindings have not made it to the mainline kernel yet, so this is not breaking backwards compatibility. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1513881187-3197-4-git-send-email-david@lechnology.com
* drm/tinydrm: Use drm_fb_cma_fbdev_init_with_funcs/fini()Noralf Trønnes2017-12-104-35/+11Star
| | | | | | | | | | | | | | | Use drm_fb_cma_fbdev_init_with_funcs() 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 todo entry. Cc: David Lechner <david@lechnology.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: David Lechner <david@lechnology.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by: David Lechner <david@lechnolgy.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171208193743.34450-11-noralf@tronnes.org
* drm/tinydrm: add driver for ILI9225 panelsDavid Lechner2017-12-013-0/+479
| | | | | | | | | | | | | This adds a new driver for display panels based on the Ilitek ILI9225 controller. This was developed for a no-name panel with a red PCB that is commonly marketed for Arduino. See <https://github.com/Nkawu/TFT_22_ILI9225>. Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1511122328-31133-5-git-send-email-david@lechnology.com
* drm/tinydrm: export mipi_dbi_buf_copy and mipi_dbi_spi_cmd_max_speedDavid Lechner2017-12-011-4/+20
| | | | | | | | | | This exports the mipi_dbi_buf_copy() and mipi_dbi_spi_cmd_max_speed() functions so that they can be shared with other drivers. Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1511122328-31133-4-git-send-email-david@lechnology.com
* drm/tinydrm: Use drm_mode_config_helper_suspend/resume()Noralf Trønnes2017-11-302-69/+5Star
| | | | | | | | | Replace driver's code with the generic helpers that do the same thing. Remove todo entry. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Stefan Agner <stefan@agner.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171106191812.38927-6-noralf@tronnes.org
* drm/tinydrm: Use drm_gem_cma_print_info()Noralf Trønnes2017-11-111-7/+1Star
| | | | | | | | | | | | | There is a new core debugfs file that prints fb/gem info: <debugfs>/dri/<n>/framebuffer Use drm_gem_cma_print_info() to provide info to that output instead of using drm_fb_cma_debugfs_show(). Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171107191348.17555-12-noralf@tronnes.org
* drm/tinydrm: Replace list_for_each with list_for_each_entryHarsha Sharma2017-10-211-3/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Sean Paul <seanpaul@chromium.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20171014202823.29230-1-harshasharmaiitr@gmail.com
* drm/tinydrm: Remove explicit .best_encoder assignmentHaneen Mohammed2017-10-131-1/+0Star
| | | | | | | | | | Since the driver is relying on the atomic helpers, remove the explicit .best_encoder assignment and let the core call drm_atomic_helper_best_encoder(). Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20171010205858.GA4806@Haneen
* drm/tinydrm: Replace dev_error with DRM_DEV_ERRORHarsha Sharma2017-10-133-22/+20Star
| | | | | | | | | Convert instances of dev_error to DRM_DEV_ERROR as we have DRM_DEV_ERROR variants of drm print macros. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20171006221738.30200-1-harshasharmaiitr@gmail.com
* drm/tinydrm: Use drm_gem_framebuffer_helperNoralf Trønnes2017-10-015-9/+14
| | | | | | | | | Use drm_gem_framebuffer_helper directly instead of the cma library wrappers. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1506255985-61113-2-git-send-email-noralf@tronnes.org
* drm/tinydrm: Drop driver registered messageNoralf Trønnes2017-09-164-36/+6Star
| | | | | | | | | | | No need to put out a driver registered message since drm_dev_register() does that now. SPI speed is an important metric when dealing with display problems, so retain that info. Cc: David Lechner <david@lechnology.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/1504883250-43487-8-git-send-email-noralf@tronnes.org
* drm/tinydrm: make function st7586_pipe_enable staticColin Ian King2017-08-161-2/+2
| | | | | | | | | | | | | | The function st7586_pipe_enable is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: symbol 'st7586_pipe_enable' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-By: David Lechner <david@lechnology.com> [noralf: fixed: Alignment should match open parenthesis] Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20170816092306.10969-1-colin.king@canonical.com
* drm/tinydrm: add support for LEGO MINDSTORMS EV3 LCDDavid Lechner2017-08-113-0/+439
| | | | | | | | | | | LEGO MINDSTORMS EV3 has an LCD with a ST7586 controller. This adds a new module for the ST7586 controller with parameters for the LEGO MINDSTORMS EV3 LCD display. Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1502127581-10517-4-git-send-email-david@lechnology.com
* drm: Document device unplug infrastructureDaniel Vetter2017-08-111-1/+1
| | | | | | | | | | While at it, also ocd and give them a consistent drm_dev_ prefix, like the other device instance functionality. Plus move the functions into the right places. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170802115604.12734-3-daniel.vetter@ffwll.ch
* drm/tinydrm: Generalize tinydrm_xrgb8888_to_gray8()David Lechner2017-08-092-31/+39
| | | | | | | | | | | | | This adds parameters for vaddr and clip to tinydrm_xrgb8888_to_gray8() to make it more generic. dma_buf_{begin,end}_cpu_access() are moved out to the repaper driver. Return type is change to void to simplify error handling by callers. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1502127581-10517-2-git-send-email-david@lechnology.com
* drm: Nuke drm_atomic_helper_connector_dpmsDaniel Vetter2017-08-081-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's dead code, the core handles all this directly now. The only special case is nouveau and tda988x which used one function for both legacy modeset code and -nv50 atomic world instead of 2 vtables. But amounts to exactly the same. v2: Rebase over the panel/brideg refactorings in stm/ltdc. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Peter Senna Tschudin <peter.senna@collabora.com> Cc: Martin Donnelly <martin.donnelly@ge.com> Cc: Martyn Welch <martyn.welch@collabora.co.uk> 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: Stefan Agner <stefan@agner.ch> Cc: Alison Wang <alison.wang@freescale.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: CK Hu <ck.hu@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Marek Vasut <marex@denx.de> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Eric Anholt <eric@anholt.net> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Heiko Stuebner <heiko@sntech.de> 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: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Jyri Sarha <jsarha@ti.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Cc: Jeffy Chen <jeffy.chen@rock-chips.com> Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Cc: Yakir Yang <kuankuan.y@gmail.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Romain Perier <romain.perier@collabora.com> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: Xinliang Liu <z.liuxinliang@hisilicon.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Rongrong Zou <zourongrong@gmail.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Hai Li <hali@codeaurora.org> Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: linux-arm-kernel@lists.infradead.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: nouveau@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-tegra@vger.kernel.org Cc: virtualization@lists.linux-foundation.org Cc: zain wang <wzz@rock-chips.com> Cc: Baoyou Xie <baoyou.xie@linaro.org> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-8-daniel.vetter@ffwll.ch Acked-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Archit Taneja <architt@codeaurora.org> Tested-by: Philippe Cornu <philippe.cornu@st.com> (on stm) Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Vincent Abriou <vincent.abriou@st.com>
* drm/tinydrm: remove call to mipi_dbi_init() from mipi_dbi_spi_init()David Lechner2017-08-042-14/+11Star
| | | | | | | | | | | This removes the call to mipi_dbi_init() from mipi_dbi_spi_init() so that drivers can have a driver-specific implementation if needed. Suggested-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/1501799630-1650-2-git-send-email-david@lechnology.com
* drm: Plumb modifiers through plane initBen Widawsky2017-08-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the plumbing for supporting fb modifiers on planes. Modifiers have already been introduced to some extent, but this series will extend this to allow querying modifiers per plane. Based on this, the client to enable optimal modifications for framebuffers. This patch simply allows the DRM drivers to initialize their list of supported modifiers upon initializing the plane. v2: A minor addition from Daniel v3: * Updated commit message * s/INVALID/DRM_FORMAT_MOD_INVALID (Liviu) * Remove some excess newlines (Liviu) * Update comment for > 64 modifiers (Liviu) v4: Minor comment adjustments (Liviu) v5: Some new platforms added due to rebase v6: Add some missed plane inits (or maybe they're new - who knows at this point) (Daniel) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Daniel Stone <daniels@collabora.com> (v2) Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Daniel Stone <daniels@collabora.com>
* tinydrm: repaper: add CONFIG_THERMAL dependencyArnd Bergmann2017-07-291-0/+1
| | | | | | | | | | | | | | | | | | The new RePaper driver uses the thermal subsystem, and fails to link when it is built-in but thermal is a loadable module: drivers/gpu/drm/tinydrm/repaper.o: In function `repaper_probe': repaper.c:(.text+0x540): undefined reference to `thermal_zone_get_zone_by_name' drivers/gpu/drm/tinydrm/repaper.o: In function `repaper_fb_dirty': repaper.c:(.text+0xff4): undefined reference to `thermal_zone_get_temp' This adds another Kconfig dependency to prevent the broken configuration, forcing repaper to be a module too. Fixes: 3589211e9b03 ("drm/tinydrm: Add RePaper e-ink driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20170727100004.300665-1-arnd@arndb.de
* drm/tinydrm: Add RePaper e-ink driverNoralf Trønnes2017-07-143-0/+1108
| | | | | | | | | | | This adds support for the Pervasive Displays RePaper branded displays. The controller code is taken from the userspace driver available through repaper.org. Only the V231 film is supported since the others are EOL. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/1496934875-51984-5-git-send-email-noralf@tronnes.org
* drm/tinydrm: Add tinydrm_xrgb8888_to_gray8() helperNoralf Trønnes2017-07-141-2/+72
| | | | | | | | | | | Drm has no monochrome or greyscale support so add a conversion from the common format XR24. Also reorder includes into the common order. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Link: http://patchwork.freedesktop.org/patch/msgid/1496934875-51984-4-git-send-email-noralf@tronnes.org
* drm: Use vsnprintf extension %phJoe Perches2017-05-311-5/+2Star
| | | | | | | | | | | | | | | | | | | | Using the extension saves a bit of code. Miscellanea: o Neaten and simplify dump_dp_payload_table o Removed trailing blank space from output $ size drivers/gpu/drm/drm_dp_mst_topology.o.* drivers/gpu/drm/tinydrm/*.o* text data bss dec hex filename 25848 0 16 25864 6508 drivers/gpu/drm/drm_dp_mst_topology.o.new 26091 0 16 26107 65fb drivers/gpu/drm/drm_dp_mst_topology.o.old 3362 2 0 3364 d24 drivers/gpu/drm/tinydrm/mipi-dbi.o.new 3376 2 0 3378 d32 drivers/gpu/drm/tinydrm/mipi-dbi.o.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/a78a21b5f34947da65473a0b7326922cda51a3be.1496187315.git.joe@perches.com
* drm/atomic: Introduce drm_atomic_helper_shutdownDaniel Vetter2017-03-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The trouble here is that it does multiple atomic commits under one drm_modeset_lock_all, which breaks the behind-the-scenes acquire context magic that function pulls off. It's much better to have one overall atomic commit. That we still have multiple atomic commits prevents us from adding some pretty useful debug checks to the atomic machinery. Hence it is really a bad idea to call the legacy drm_crtc_force_disable_all() function. There's 2 atomic drivers using this still, nouveau and tinydrm. To fix this, introduce a new drm_atomic_helper_shutdown() by extracting the code from i915. While at it improve kernel-doc and catch future offenders by sprinkling a WARN_ON into the legacy function. We should probably move those into the legacy modeset helpers, too ... v2: Make it compile on arm drivers too (Noralf). v3: Correct kerneldoc to point at _disable_all(). Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Noralf Trønnes <noralf@tronnes.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Ben Skeggs <bskeggs@redhat.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170321164149.31531-1-daniel.vetter@ffwll.ch
* drm/tinydrm: Fix drm_driver.fops.ownerNoralf Trønnes2017-03-272-15/+3Star
| | | | | | | | | | | | drm_driver.fops can't be shared since the owner then becomes tinydrm.ko. Move the fops declaration to the driver. v2: Use DEFINE_DRM_GEM_CMA_FOPS Reported-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170326142529.16938-1-noralf@tronnes.org
* Merge tag 'doc-4.11-images' of git://git.lwn.net/linux into drm-misc-nextDaniel Vetter2017-03-141-1/+1
|\ | | | | | | | | | | | | | | Pointer for Markus's image conversion work. We need this so we can merge all the pretty drm graphs for 4.12. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
| * Merge tag 'drm-for-v4.11-less-shouty' of ↵Linus Torvalds2017-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~airlied/linux Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.11. Nothing too major, the tinydrm and mmu-less support should make writing smaller drivers easier for some of the simpler platforms, and there are a bunch of documentation updates. Intel grew displayport MST audio support which is hopefully useful to people, and FBC is on by default for GEN9+ (so people know where to look for regressions). AMDGPU has a lot of fixes that would like new firmware files installed for some GPUs. Other than that it's pretty scattered all over. I may have a follow up pull request as I know BenH has a bunch of AST rework and fixes and I'd like to get those in once they've been tested by AST, and I've got at least one pull request I'm just trying to get the author to fix up. Core: - drm_mm reworked - Connector list locking and iterators - Documentation updates - Format handling rework - MMU-less support for fbdev helpers - drm_crtc_from_index helper - Core CRC API - Remove drm_framebuffer_unregister_private - Debugfs cleanup - EDID/Infoframe fixes - Release callback - Tinydrm support (smaller drivers for simple hw) panel: - Add support for some new simple panels i915: - FBC by default for gen9+ - Shared dpll cleanups and docs - GEN8 powerdomain cleanup - DMC support on GLK - DP MST audio support - HuC loading support - GVT init ordering fixes - GVT IOMMU workaround fix amdgpu/radeon: - Power/clockgating improvements - Preliminary SR-IOV support - TTM buffer priority and eviction fixes - SI DPM quirks removed due to firmware fixes - Powerplay improvements - VCE/UVD powergating fixes - Cleanup SI GFX code to match CI/VI - Support for > 2 displays on 3/5 crtc asics - SI headless fixes nouveau: - Rework securre boot code in prep for GP10x secure boot - Channel recovery improvements - Initial power budget code - MMU rework preperation vmwgfx: - Bunch of fixes and cleanups exynos: - Runtime PM support for MIC driver - Cleanups to use atomic helpers - UHD Support for TM2/TM2E boards - Trigger mode fix for Rinato board etnaviv: - Shader performance fix - Command stream validator fixes - Command buffer suballocator rockchip: - CDN DisplayPort support - IOMMU support for arm64 platform imx-drm: - Fix i.MX5 TV encoder probing - Remove lower fb size limits msm: - Support for HW cursor on MDP5 devices - DSI encoder cleanup - GPU DT bindings cleanup sti: - stih410 cleanups - Create fbdev at binding - HQVDP fixes - Remove stih416 chip functionality - DVI/HDMI mode selection fixes - FPS statistic reporting omapdrm: - IRQ code cleanup dwi-hdmi bridge: - Cleanups and fixes adv-bridge: - Updates for nexus sii8520 bridge: - Add interlace mode support - Rework HDMI and lots of fixes qxl: - probing/teardown cleanups ZTE drm: - HDMI audio via SPDIF interface - Video Layer overlay plane support - Add TV encoder output device atmel-hlcdc: - Rework fbdev creation logic tegra: - OF node fix fsl-dcu: - Minor fixes mali-dp: - Assorted fixes sunxi: - Minor fix" [ This was the "fixed" pull, that still had build warnings due to people not even having build tested the result. I'm not a happy camper I've fixed the things I noticed up in this merge. - Linus ] * tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits) lib/Kconfig: make PRIME_NUMBERS not user selectable drm/tinydrm: helpers: Properly fix backlight dependency drm/tinydrm: mipi-dbi: Fix field width specifier warning drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files drm/amd/powerplay: fix PSI feature on Polars12 drm/amdgpu: refuse to reserve io mem for split VRAM buffers drm/ttm: fix use-after-free races in vm fault handling drm/tinydrm: Add support for Multi-Inno MI0283QT display dt-bindings: Add Multi-Inno MI0283QT binding dt-bindings: display/panel: Add common rotation property of: Add vendor prefix for Multi-Inno drm/tinydrm: Add MIPI DBI support drm/tinydrm: Add helper functions drm: Add DRM support for tiny LCD displays drm/amd/amdgpu: post card if there is real hw resetting performed drm/nouveau/tmr: provide backtrace when a timeout is hit drm/nouveau/pci/g92: Fix rearm drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios drm/nouveau/hwmon: expose power_max and power_crit ..
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