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path: root/drivers/media/platform
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2017-02-08[media] st-delta: STiH4xx multi-format video decoder v4l2 driverHugues Fruchet
This V4L2 driver enables DELTA multi-format video decoder of STMicroelectronics STiH4xx SoC series. Acked-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] exynos-gsc: Avoid spamming the log on VIDIOC_TRY_FMTJavier Martinez Canillas
There isn't an ioctl to enum the supported field orders, so a user-space application can call VIDIOC_TRY_FMT using different field orders to know if one is supported. For example, GStreamer does this so during playback dozens of the following messages appear in the kernel log buffer: [ 442.143393] Not supported field order(4) Instead of printing this as an error, just keep it as debug information. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] exynos4-is: Add missing 'of_node_put'Christophe JAILLET
It is likely that a "of_node_put(ep)" is missing here. There is one in the previous error handling code, and one a few lines below in the normal case as well. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] coda: add Freescale firmware compatibility locationBaruch Siach
The Freescale provided imx-vpu looks for firmware files under /lib/firmware/vpu by default. Make coda look there for firmware files to ease the update path. Cc: Fabio Estevam <festevam@gmail.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] v4l: rcar_fdp1: use %4.4s to format a 4-byte stringNicolas Iooss
Using %4s to format f->fmt.pix_mp.pixelformat in fdp1_try_fmt() and fdp1_s_fmt() may lead to more characters being printed (when the byte following field pixelformat is not zero). Add ".4" to the format specifier to limit the number of printed characters to four. The resulting format specifier "%4.4s" is also used by other media drivers to print pixelformat value. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Reviewed-by: Kieran Bingham <kieran@bingham.xyz> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] media: platform: s3c-camif: constify v4l2_subdev_ops structuresBhumika Goyal
Check for v4l2_subdev_ops structures that are only passed as an argument to the function v4l2_subdev_init. This argument is of type const, so v4l2_subdev_ops structures having this property can also be declared const. Done using Coccinelle: @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_ops i@p = {...}; @ok1@ identifier r1.i; position p; @@ v4l2_subdev_init(...,&i@p) @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct v4l2_subdev_ops i; File size before: text data bss dec hex filename 17171 1912 20 19103 4a9f platform/s3c-camif/camif-capture.o File size after: text data bss dec hex filename 17235 1848 20 19103 4a9f platform/s3c-camif/camif-capture.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] v4l: vsp1: Add VIDIOC_EXPBUF supportLaurent Pinchart
Use the vb2 ioctl handler directly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] media: platform: xilinx: xilinx-tpg: constify v4l2_subdev_* structuresBhumika Goyal
v4l2_subdev_{core/pad/video}_ops structures are stored in the fields of the v4l2_subdev_ops structure which are of type const. Also, v4l2_subdev_ops structure is passed to a function having its argument of type const. As these structures are never modified, so declare them as const. Done using Coccinelle: (One of the scripts used) @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_video_ops i@p = {...}; @ok1@ identifier r1.i; position p; struct v4l2_subdev_ops obj; @@ obj.video=&i@p; @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct v4l2_subdev_video_ops i; File size before: text data bss dec hex filename 6170 2752 144 9066 236a media/platform/xilinx/xilinx-tpg.o File size after: text data bss dec hex filename 6666 2384 8 9058 2362 media/platform/xilinx/xilinx-tpg.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] media: platform: sti: return -ENOMEM on errorsPan Bian
Function bdisp_debugfs_create() returns 0 even on errors. So its caller cannot detect the errors. It may be better to return "-ENOMEM" on the exception paths. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188801 Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] mtk-vcodec: use V4L2_DEC_CMD_STOP to implement flushTiffany Lin
Also remove the code using size-0 OUTPUT buffer to flush. Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com> Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org> Reviewed-by: Kuang-che Wu <kcwu@chromium.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] media: ti-vpe: vpdma: fix a timeout loopDan Carpenter
The check assumes that we end on zero but actually we end on -1. Change the post-op to a pre-op so that we do end on zero. Techinically now we only loop 499 times instead of 500 but that's fine. Fixes: dc12b124353b ("[media] media: ti-vpe: vpdma: Add abort channel desc and cleanup APIs") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-02-03[media] Staging: media: platform: davinci: - Fix for memory leakShailendra Verma
Fix to avoid possible memory leak if the decoder initialization got failed. Free the allocated memory for file handle object before return in case decoder initialization fails. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] st-hva: hva_dbg_summary() should be staticMauro Carvalho Chehab
As reported by gcc: drivers/media/platform/sti/hva/hva-v4l2.c:227:6: warning: no previous prototype for 'hva_dbg_summary' [-Wmissing-prototypes] void hva_dbg_summary(struct hva_ctx *ctx) ^~~~~~~~~~~~~~~ This function is used only internally, so make it static. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] st-hva: add debug file systemJean-Christophe Trotin
This patch creates 4 static debugfs entries to dump: - the device-related information ("st-hva/device") - the list of registered encoders ("st-hva/encoders") - the current values of the hva registers ("st-hva/regs") - the information about the last closed instance ("st-hva/last") It also creates dynamically a debugfs entry for each opened instance, ("st-hva/<instance identifier>") to dump: - the information about the frame (format, resolution) - the information about the stream (format, profile, level, resolution) - the control parameters (bitrate mode, framerate, GOP size...) - the potential (system, encoding...) errors - the performance information about the encoding (HW processing duration, average bitrate, average framerate...) Each time a running instance is closed, its context (including the debug information) is saved to feed, on demand, the last closed instance debugfs entry. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Jean-Christophe Trotin <jean-christophe.trotin@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] st-hva: encoding summary at instance releaseJean-Christophe Trotin
This patch adds a short summary about the encoding operation at each instance closing, for debug purpose (through dev_dbg()): - information about the frame (format, resolution) - information about the stream (format, profile, level, resolution) - number of encoded frames - potential (system, encoding...) errors Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Jean-Christophe Trotin <jean-christophe.trotin@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31Revert "[media] coda/imx-vdoa: constify structs"Mauro Carvalho Chehab
Despite checkpatch comments, it seems that ARM doesn't like to use constified structs. As reported by kernel build robot: In file included from drivers/media/platform/coda/imx-vdoa.c:22:0: drivers/media/platform/coda/imx-vdoa.c: In function 'vdoa_driver_init': >> include/linux/device.h:1461:20: warning: passing argument 1 of '__platform_driver_register' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] return __register(&(__driver) , ##__VA_ARGS__); \ ^ include/linux/platform_device.h:198:29: note: in definition of macro 'platform_driver_register' __platform_driver_register(drv, THIS_MODULE) ^~~ include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver' module_driver(__platform_driver, platform_driver_register, \ ^~~~~~~~~~~~~ >> drivers/media/platform/coda/imx-vdoa.c:333:1: note: in expansion of macro 'module_platform_driver' module_platform_driver(vdoa_driver); ^~~~~~~~~~~~~~~~~~~~~~ include/linux/platform_device.h:199:12: note: expected 'struct platform_driver *' but argument is of type 'const struct platform_driver *' extern int __platform_driver_register(struct platform_driver *, ^~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/media/platform/coda/imx-vdoa.c:18:0: drivers/media/platform/coda/imx-vdoa.c: In function 'vdoa_driver_exit': >> include/linux/device.h:1466:15: warning: passing argument 1 of 'platform_driver_unregister' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] __unregister(&(__driver) , ##__VA_ARGS__); \ ^ include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver' module_driver(__platform_driver, platform_driver_register, \ ^~~~~~~~~~~~~ >> drivers/media/platform/coda/imx-vdoa.c:333:1: note: in expansion of macro 'module_platform_driver' module_platform_driver(vdoa_driver); ^~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/media/platform/coda/imx-vdoa.c:22:0: include/linux/platform_device.h:201:13: note: expected 'struct platform_driver *' but argument is of type 'const struct platform_driver *' extern void platform_driver_unregister(struct platform_driver *); ^~~~~~~~~~~~~~~~~~~~~~~~~~ So, let's just remove it. This reverts commit 126f52b02e6ec6a25f0b32058a91648304922d4a. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] v4l: omap3isp: Clean up file handle in open() and release()Shailendra Verma
Both functions initialize the file handle with v4l2_fh_init() and thus need to call clean up with v4l2_fh_exit() as appropriate. Fix it. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] exynos4-is: constify v4l2_subdev_* structuresBhumika Goyal
v4l2_subdev_{core/pad/video}_ops structures are stored in the fields of the v4l2_subdev_ops structure which are of type const. Also, v4l2_subdev_ops structure is passed to a function having its argument of type const. As these structures are never modified, so declare them as const. Done using Coccinelle:(one of the scripts used) @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_ops i@p = {...}; @ok1@ identifier r1.i; position p; expression e1; @@ v4l2_subdev_init(e1,&i@p) @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct v4l2_subdev_ops i; File size before: text data bss dec hex filename 16830 1064 0 17894 45e6 platform/exynos4-is/fimc-capture.o 7787 704 20 8511 213f platform/exynos4-is/mipi-csis.o File size after: text data bss dec hex filename 17022 880 0 17902 45ee platform/exynos4-is/fimc-capture.o 8299 192 20 8511 213f platform/exynos4-is/mipi-csis.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] exynos4-is: fimc-is: Unmap region obtained by of_iomap()Arvind Yadav
Free memory mapping, if fimc_is_probe is not successful. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] exynos-gsc: Fix unbalanced pm_runtime_enable() errorJavier Martinez Canillas
Commit a006c04e6218 ("[media] exynos-gsc: Fixup clock management at ->remove()") changed the driver's .remove function logic to fist do a pm_runtime_get_sync() to make sure the device is powered before attempting to gate the gsc clock. But the commit also removed a pm_runtime_disable() call that leads to an unbalanced pm_runtime_enable() error if the driver is removed and re-probed: exynos-gsc 13e00000.video-scaler: Unbalanced pm_runtime_enable! exynos-gsc 13e10000.video-scaler: Unbalanced pm_runtime_enable! Fixes: a006c04e6218 ("[media] exynos-gsc: Fixup clock management at ->remove()") Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] exynos-gsc: Clean up file handle in open() error pathShailendra Verma
The file handle is not yet added in the vfd list. So no need to call v4l2_fh_del(&ctx->fh) if it fails to create controls. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] exynos4-is: Clean up file handle in open() error pathShailendra Verma
The file handle is not yet added in the vfd list. So no need to call v4l2_fh_del(&ctx->fh) if it fails to create controls. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda: support YUYV output if VDOA is usedMichael Tretter
The VDOA is able to transform the NV12 custom macroblock tiled format of the CODA to YUYV format. If and only if the VDOA is available, the driver can also provide YUYV support. While the driver is configured to produce YUYV output, the CODA must be configured to produce NV12 macroblock tiled frames and the VDOA must transform the intermediate result into the final YUYV output. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda: use VDOA for un-tiling custom macroblock formatMichael Tretter
If the CODA driver is configured to produce NV12 output and the VDOA is available, the VDOA can be used to transform the custom macroblock tiled format to a raster-ordered format for scanout. In this case, set the output format of the CODA to the custom macroblock tiled format, disable the rotator, and use the VDOA to write to the v4l2 buffer. The VDOA is synchronized with the CODA to always un-tile the frame that the CODA finished in the previous run. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda: fix frame index to returned errorMichael Tretter
display_idx refers to the frame that will be returned in the next round. The currently processed frame is ctx->display_idx and errors should be reported for this frame. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda: add debug output about tilingPhilipp Zabel
In order to make the VDOA work correctly, the CODA must produce frames in tiled format. Print this information in the debug output. Also print the color format in fourcc instead of the numeric value. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda: correctly set capture compose rectanglePhilipp Zabel
Correctly store the rectangle of valid video data in the destination q_data before rounding up to macroblock size. This fixes the output of VIDIOC_G_SELECTION for the capture side compose rectangle. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda/imx-vdoa: constify structsMauro Carvalho Chehab
As warned by checkpatch: WARNING: struct of_device_id should normally be const #318: FILE: drivers/media/platform/coda/imx-vdoa.c:318: +static struct of_device_id vdoa_dt_ids[] = { So, constify structs. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] coda: add i.MX6 VDOA driverPhilipp Zabel
The i.MX6 Video Data Order Adapter's (VDOA) sole purpose is to convert from a custom macroblock tiled format produced by the CODA960 decoder into linear formats that can be used for scanout. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] davinci: VPIF: add basic support for DT initKevin Hilman
Add basic support for initialization via DT Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] davinci: vpif_capture: fix start/stop streaming lockingKevin Hilman
Video capture subdevs may be over I2C and may sleep during xfer, so we cannot do IRQ-disabled locking when calling the subdev. The IRQ-disabled locking is meant to protect the DMA queue list throughout the rest of the driver, so update the locking in [start|stop]_streaming to protect just this list, and update the irqlock comment to reflect what it actually protects. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] davinci: vpif_capture: remove hard-coded I2C adapter idKevin Hilman
Remove hard-coded I2C adapter in favor of getting the ID from platform_data. Signed-off-by: Kevin Hilman <khilman@baylibre.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] davinci: VPIF: fix module loading, init errorsKevin Hilman
Fix problems with automatic module loading by adding MODULE_ALIAS. Also fix various load-time errors cause by incorrect or not present platform_data. Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] vim2m: Clean up file handle in open() error pathSantosh Kumar Singh
Fix to avoid possible memory leak and exit file handle in error paths. Signed-off-by: Santosh Kumar Singh <kumar.san1093@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-31[media] mtk-vcodec: use designated initializersKees Cook
Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30[media] am437x-vpfe: always assign bpp variableNicolas Iooss
In vpfe_s_fmt(), when the sensor format and the requested format were the same, bpp was assigned to vpfe->bpp without being initialized first. Grab the bpp value that is currently used by using __vpfe_get_format() instead of its wrapper, vpfe_try_fmt(). This use of uninitialized variable has been found by compiling the kernel with clang. Fixes: 417d2e507edc ("[media] media: platform: add VPFE capture driver support for AM437X") Cc: stable@vger.kernel.org Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30[media] vivid: Enable 4k resolution for webcam capture deviceSoren Brinkmann
Add 3840x2160 as valid resolution for the webcam capture input and adjust the webcam intervals accordingly. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30[media] media: platform: soc_camera_platform : constify v4l2_subdev_* structuresBhumika Goyal
v4l2_subdev_{core/video}_ops structures are stored in the fields of the v4l2_subdev_ops structure which are of type const. Also, v4l2_subdev_ops structure is passed to a function having its argument of type const. As these structures are never modified, so declare them as const. Done using Coccinelle:(One of the scripts) @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_core_ops i@p = {...}; @ok1@ identifier r1.i; position p; struct v4l2_subdev_ops obj; @@ obj.core=&i@p; @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct v4l2_subdev_core_ops i; File size before: text data bss dec hex filename 858 576 0 1434 59a soc_camera/soc_camera_platform.o File size after: text data bss dec hex filename 1234 192 0 1426 592 soc_camera/soc_camera_platform.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30[media] xilinx: Use a local media device pointer insteadSakari Ailus
The function has a local variable that points to the media device; use that instead of finding the media device under the entity. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-30[media] omap3isp: Use a local media device pointer insteadSakari Ailus
The function has a local variable that points to the media device; use that instead of finding the media device under the entity. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-27[media] media: Rename graph and pipeline structs and functionsSakari Ailus
The media_entity_pipeline_start() and media_entity_pipeline_stop() functions are renamed as media_pipeline_start() and media_pipeline_stop(), respectively. The reason is two-fold: the pipeline struct is, rightly, already called media_pipeline (rather than media_entity_pipeline) and what this really is about is a pipeline. A pipeline consists of entities --- and, well, other objects embedded in these entities. As the pipeline object will be in the future moved from entities to pads in order to support multiple pipelines through a single entity, do the renaming now. Similarly, functions operating on struct media_entity_graph as well as the struct itself are renamed by dropping the "entity_" part from the prefix of the function family and the data structure. The graph traversal which is what the functions are about is not specifically about entities only and will operate on pads for the same reason as the media pipeline. The patch has been generated using the following command: git grep -l media_entity |xargs perl -i -pe ' s/media_entity_pipeline/media_pipeline/g; s/media_entity_graph/media_graph/g' And a few manual edits related to line start alignment and line wrapping. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-27[media] media: Drop FSF's postal address from the source code filesSakari Ailus
Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 removed instances, 578 are outdated. The patch has been created with the following command without manual edits: git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \ drivers/media/ include/media|while read i; do i=$i perl -e ' open(F,"< $ENV{i}"); $a=join("", <F>); $a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m && $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m; close(F); open(F, "> $ENV{i}"); print F $a; close(F);'; done Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-30[media] s5p-mfc: Add support for MFC v8 available in Exynos 5433 SoCsMarek Szyprowski
Exynos5433 SoC has MFC v8 hardware module, but it has more complex clock hierarchy, so a new compatible is added. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30[media] s5p-mfc: Rework clock handlingMarek Szyprowski
This patch changes the code for handling clocks. Now clocks are defined per each device variant, what is a preparation for adding support for Exynos 5433 MFC V8, which has more clocks than all previous versions. Also use devm_clk_get() to simplify cleanup path. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30[media] s5p-mfc: Don't keep clock prepared all the timeMarek Szyprowski
This patch moves preparation of clocks from s5p_mfc_init_pm() (driver probe) to s5p_mfc_power_on() (start of device operation). This change will allow to use runtime power usage optimization on newer Samsung Exynos platforms (for example Exynos 5433). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30[media] s5p-mfc: Kill all IS_ERR_OR_NULL in clocks management codeMarek Szyprowski
After commit "s5p-mfc: Fix clock management in s5p_mfc_release function" all clocks related functions are called only when MFC device is really available, so there is no additional check needed for NULL gate clocks. This patch simplifies the code and kills IS_ERR_OR_NULL macro usage. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30[media] s5p-mfc: Remove dead conditional codeMarek Szyprowski
CONFIG_PM is always enabled on Exynos platforms, so remove dead code related to early development of MFC driver on platform without PM support. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30[media] s5p-mfc: Ensure that clock is disabled before turning power offMarek Szyprowski
Move clock disabling before turning power off. This will enable later to add calls to clk_prepare/unprepare in the s5p_mfc_power_off() function to avoid keeping clocks prepared all the time when driver is bound. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-30[media] s5p-mfc: Remove special clock rate managementMarek Szyprowski
The maximum rate of special clock depends on SoC variant and should be set in device tree via assigned-clock-rates property, so remove the code which forces special clock to 200MHz. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>