1. 11 Jun, 2020 15 commits
  2. 25 May, 2020 9 commits
    • Sakari Ailus's avatar
      media: Documentation: media: Refer to mbus format documentation from CSI-2 docs · 938b29db
      Sakari Ailus authored
      The media bus formats to be used on serial busses are documented but there
      was no reference from CSI-2 documentation. Add that now.
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Acked-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
      Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      938b29db
    • Gustavo A. R. Silva's avatar
      media: s5k5baf: Replace zero-length array with flexible-array · 142d0648
      Gustavo A. R. Silva authored
      The current codebase makes use of the zero-length array language
      extension to the C90 standard, but the preferred mechanism to declare
      variable-length types such as these ones is a flexible array member[1][2],
      introduced in C99:
      
      struct foo {
              int stuff;
              struct boo array[];
      };
      
      By making use of the mechanism above, we will get a compiler warning
      in case the flexible array does not occur last in the structure, which
      will help us prevent some kind of undefined behavior bugs from being
      inadvertently introduced[3] to the codebase from now on.
      
      Also, notice that, dynamic memory allocations won't be affected by
      this change:
      
      "Flexible array members have incomplete type, and so the sizeof operator
      may not be applied. As a quirk of the original implementation of
      zero-length arrays, sizeof evaluates to zero."[1]
      
      sizeof(flexible-array-member) triggers a warning because flexible array
      members have incomplete type[1]. There are some instances of code in
      which the sizeof operator is being incorrectly/erroneously applied to
      zero-length arrays and the result is zero. Such instances may be hiding
      some bugs. So, this work (flexible-array member conversions) will also
      help to get completely rid of those sorts of issues.
      
      This issue was found with the help of Coccinelle.
      
      [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
      [2] https://github.com/KSPP/linux/issues/21
      [3] commit 76497732 ("cxgb3/l2t: Fix undefined behaviour")
      Signed-off-by: default avatarGustavo A. R. Silva <gustavoars@kernel.org>
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      142d0648
    • Geert Uytterhoeven's avatar
      media: i2c: imx219: Drop <linux/clk-provider.h> and <linux/clkdev.h> · cd259939
      Geert Uytterhoeven authored
      The IMX219 camera driver is not a clock provider, but merely a clock
      consumer, and thus does not need to include <linux/clk-provider.h> and
      <linux/clkdev.h>.
      Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      cd259939
    • Bingbu Cao's avatar
      media: i2c: Add ov2740 image sensor driver · 866edc89
      Bingbu Cao authored
      OminiVision ov2740 is a 2 megapixels RAW RGB image sensor which can
      deliver 1920x1080@60fps frames. This driver add the support of
      vertical blanking, exposure, test pattern, digital and analog gain
      control for sensor.
      Signed-off-by: default avatarBingbu Cao <bingbu.cao@intel.com>
      Signed-off-by: default avatarShawn Tu <shawnx.tu@intel.com>
      Signed-off-by: default avatarQiu, Tianshu <tian.shu.qiu@intel.com>
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      866edc89
    • Robert Foss's avatar
      media: ov8856: Implement sensor module revision identification · 96b5b11a
      Robert Foss authored
      Query the sensor for its module revision, and compare it
      to known revisions.
      
      Currently 2A and 1B revision indentification is supported.
      
      [Sakari Ailus: Wrap a line over 80, alignment, use %u for printing u32]
      Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      96b5b11a
    • Robert Foss's avatar
      media: ov8856: Add devicetree support · 0c2c7a1e
      Robert Foss authored
      Add match table, enable ov8856_probe() to support
      both ACPI and DT modes.
      
      ACPI and DT modes are primarily distinguished from
      by checking for ACPI mode and by having resource like
      be NULL.
      Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      0c2c7a1e
    • Dongchun Zhu's avatar
      media: dt-bindings: ov8856: Document YAML bindings · 932300e6
      Dongchun Zhu authored
      This patch adds documentation of device tree in YAML schema for the
      OV8856 CMOS image sensor.
      Signed-off-by: default avatarDongchun Zhu <dongchun.zhu@mediatek.com>
      Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
      Reviewed-by: default avatarMaxime Ripard <mripard@kernel.org>
      Reviewed-by: default avatarRob Herring <robh@kernel.org>
      Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      932300e6
    • Dirk Nehring's avatar
      media: dvb-usb: Add Cinergy S2 PCIe Dual Port support · 528b1a1a
      Dirk Nehring authored
      Terratec Cinergy S2 PCIe Dual is a PCIe device with two tuners that
      actually contains two USB devices. The devices are visible in the
      lsusb printout.
      
      Bus 004 Device 002: ID 153b:1182 TerraTec Electronic GmbH Cinergy S2 PCIe Dual Port 2
      Bus 003 Device 002: ID 153b:1181 TerraTec Electronic GmbH Cinergy S2 PCIe Dual Port 1
      
      The devices use the Montage M88DS3000/M88TS2022 demod/tuner.
      Signed-off-by: default avatarDirk Nehring <dnehring@gmx.net>
      Signed-off-by: default avatarSean Young <sean@mess.org>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      528b1a1a
    • Brad Love's avatar
      media: dvbdev: Fix tuner->demod media controller link · 9f984cac
      Brad Love authored
      Fixes bug exposed by:
      
      [a3fbc2e6: media: mc-entity.c: use WARN_ON, validate link pads]
      
      The dvbdev incorrectly requests a tuner sink pad to connect to a demux
      sink pad. The media controller failure percolates back and the dvb device
      creation fails. Fix this by requesting a tuner source pad. Instead of
      forcing that pad to be index zero, check if a negative integer error
      is returned. A note is added that first source pad found is chosen.
      
      Affected bridges cx231xx and em28xx printed the below warning[s]
      when a variety of media controller dvb enabled devices were connected.
      The warning returns an error causing all affected devices to fail DVB
      device creation.
      
      [  253.138332] ------------[ cut here ]------------
      [  253.138339] WARNING: CPU: 0 PID: 1550 at drivers/media/mc/mc-entity.c:669 media_create_pad_link+0x1e0/0x200 [mc]
      [  253.138339] Modules linked in: si2168 em28xx_dvb(+) em28xx si2157 lgdt3306a cx231xx_dvb dvb_core cx231xx_alsa cx25840 cx231xx tveeprom cx2341x i2c_mux videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc ir_rc5_decoder rc_hauppauge mceusb rc_core eda
      c_mce_amd kvm nls_iso8859_1 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper efi_pstore wmi_bmof k10temp asix usbnet mii nouveau snd_hda_codec_realtek snd_hda_codec_generic input_leds ledtrig_audio snd_hda_codec_hdmi mxm_wmi snd_hda_in
      tel video snd_intel_dspcfg ttm snd_hda_codec drm_kms_helper snd_hda_core drm snd_hwdep snd_seq_midi snd_seq_midi_event i2c_algo_bit snd_pcm snd_rawmidi fb_sys_fops snd_seq syscopyarea sysfillrect snd_seq_device sysimgblt snd_timer snd soundcore ccp mac_hid sch_fq_codel parport_p
      c ppdev lp parport ip_tables x_tables autofs4 vfio_pci irqbypass vfio_virqfd vfio_iommu_type1 vfio hid_generic usbhid hid i2c_piix4 ahci libahci wmi gpio_amdpt
      [  253.138370]  gpio_generic
      [  253.138372] CPU: 0 PID: 1550 Comm: modprobe Tainted: G        W         5.7.0-rc2+ #181
      [  253.138373] Hardware name: MSI MS-7A39/B350M GAMING PRO (MS-7A39), BIOS 2.G0 04/27/2018
      [  253.138376] RIP: 0010:media_create_pad_link+0x1e0/0x200 [mc]
      [  253.138378] Code: 26 fd ff ff 44 8b 4d d0 eb d9 0f 0b 41 b9 ea ff ff ff 44 89 c8 c3 0f 0b 41 b9 ea ff ff ff eb f2 0f 0b 41 b9 ea ff ff ff eb e8 <0f> 0b 41 b9 ea ff ff ff eb af 0f 0b 41 b9 ea ff ff ff eb a5 66 90
      [  253.138379] RSP: 0018:ffffb9ecc0ee7a78 EFLAGS: 00010246
      [  253.138380] RAX: ffff943f706c99d8 RBX: 0000000000000000 RCX: 0000000000000000
      [  253.138381] RDX: ffff943f613e0180 RSI: 0000000000000000 RDI: ffff943f706c9958
      [  253.138381] RBP: ffffb9ecc0ee7ab0 R08: 0000000000000001 R09: ffff943f613e0180
      [  253.138382] R10: ffff943f613e0180 R11: ffff943f706c9400 R12: 0000000000000000
      [  253.138383] R13: 0000000000000001 R14: ffff943f706c9958 R15: 0000000000000001
      [  253.138384] FS:  00007f3cd29ba540(0000) GS:ffff943f8ec00000(0000) knlGS:0000000000000000
      [  253.138385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [  253.138385] CR2: 000055f7de0ca830 CR3: 00000003dd208000 CR4: 00000000003406f0
      [  253.138386] Call Trace:
      [  253.138392]  media_create_pad_links+0x104/0x1b0 [mc]
      [  253.138397]  dvb_create_media_graph+0x350/0x5f0 [dvb_core]
      [  253.138402]  em28xx_dvb_init+0x5ea/0x2600 [em28xx_dvb]
      [  253.138408]  em28xx_register_extension+0x63/0xc0 [em28xx]
      [  253.138410]  ? 0xffffffffc039c000
      [  253.138412]  em28xx_dvb_register+0x15/0x1000 [em28xx_dvb]
      [  253.138416]  do_one_initcall+0x71/0x250
      [  253.138418]  ? do_init_module+0x27/0x22e
      [  253.138421]  ? _cond_resched+0x1a/0x50
      [  253.138423]  ? kmem_cache_alloc_trace+0x1ec/0x270
      [  253.138425]  ? __vunmap+0x1e3/0x240
      [  253.138427]  do_init_module+0x5f/0x22e
      [  253.138430]  load_module+0x2525/0x2d40
      [  253.138436]  __do_sys_finit_module+0xe5/0x120
      [  253.138438]  ? __do_sys_finit_module+0xe5/0x120
      [  253.138442]  __x64_sys_finit_module+0x1a/0x20
      [  253.138443]  do_syscall_64+0x57/0x1b0
      [  253.138445]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
      [  253.138446] RIP: 0033:0x7f3cd24dc839
      [  253.138448] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
      [  253.138449] RSP: 002b:00007ffe4fc514d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
      [  253.138450] RAX: ffffffffffffffda RBX: 000055a9237f63f0 RCX: 00007f3cd24dc839
      [  253.138451] RDX: 0000000000000000 RSI: 000055a922c3ad2e RDI: 0000000000000000
      [  253.138451] RBP: 000055a922c3ad2e R08: 0000000000000000 R09: 0000000000000000
      [  253.138452] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
      [  253.138453] R13: 000055a9237f5550 R14: 0000000000040000 R15: 000055a9237f63f0
      [  253.138456] ---[ end trace a60f19c54aa96ec4 ]---
      
      [  234.915628] ------------[ cut here ]------------
      [  234.915640] WARNING: CPU: 0 PID: 1502 at drivers/media/mc/mc-entity.c:669 media_create_pad_link+0x1e0/0x200 [mc]
      [  234.915641] Modules linked in: si2157 lgdt3306a cx231xx_dvb(+) dvb_core cx231xx_alsa cx25840 cx231xx tveeprom cx2341x i2c_mux videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc ir_rc5_decoder rc_hauppauge mceusb rc_core edac_mce_amd kvm nls_iso8859
      _1 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper efi_pstore wmi_bmof k10temp asix usbnet mii nouveau snd_hda_codec_realtek snd_hda_codec_generic input_leds ledtrig_audio snd_hda_codec_hdmi mxm_wmi snd_hda_intel video snd_intel_dspcf
      g ttm snd_hda_codec drm_kms_helper snd_hda_core drm snd_hwdep snd_seq_midi snd_seq_midi_event i2c_algo_bit snd_pcm snd_rawmidi fb_sys_fops snd_seq syscopyarea sysfillrect snd_seq_device sysimgblt snd_timer snd soundcore ccp mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tab
      les x_tables autofs4 vfio_pci irqbypass vfio_virqfd vfio_iommu_type1 vfio hid_generic usbhid hid i2c_piix4 ahci libahci wmi gpio_amdpt gpio_generic
      [  234.915700] CPU: 0 PID: 1502 Comm: modprobe Not tainted 5.7.0-rc2+ #181
      [  234.915702] Hardware name: MSI MS-7A39/B350M GAMING PRO (MS-7A39), BIOS 2.G0 04/27/2018
      [  234.915709] RIP: 0010:media_create_pad_link+0x1e0/0x200 [mc]
      [  234.915712] Code: 26 fd ff ff 44 8b 4d d0 eb d9 0f 0b 41 b9 ea ff ff ff 44 89 c8 c3 0f 0b 41 b9 ea ff ff ff eb f2 0f 0b 41 b9 ea ff ff ff eb e8 <0f> 0b 41 b9 ea ff ff ff eb af 0f 0b 41 b9 ea ff ff ff eb a5 66 90
      [  234.915714] RSP: 0018:ffffb9ecc1b6fa50 EFLAGS: 00010246
      [  234.915717] RAX: ffff943f8c94a9d8 RBX: 0000000000000000 RCX: 0000000000000000
      [  234.915719] RDX: ffff943f613e0900 RSI: 0000000000000000 RDI: ffff943f8c94a958
      [  234.915721] RBP: ffffb9ecc1b6fa88 R08: 0000000000000001 R09: ffff943f613e0900
      [  234.915723] R10: ffff943f613e0900 R11: ffff943f6b590c00 R12: 0000000000000000
      [  234.915724] R13: 0000000000000001 R14: ffff943f8c94a958 R15: 0000000000000001
      [  234.915727] FS:  00007f4ca3646540(0000) GS:ffff943f8ec00000(0000) knlGS:0000000000000000
      [  234.915729] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [  234.915731] CR2: 00007fff7a53ba18 CR3: 00000003da614000 CR4: 00000000003406f0
      [  234.915733] Call Trace:
      [  234.915745]  media_create_pad_links+0x104/0x1b0 [mc]
      [  234.915756]  dvb_create_media_graph+0x350/0x5f0 [dvb_core]
      [  234.915766]  dvb_init.part.4+0x691/0x1360 [cx231xx_dvb]
      [  234.915780]  dvb_init+0x1a/0x20 [cx231xx_dvb]
      [  234.915787]  cx231xx_register_extension+0x71/0xa0 [cx231xx]
      [  234.915791]  ? 0xffffffffc042f000
      [  234.915796]  cx231xx_dvb_register+0x15/0x1000 [cx231xx_dvb]
      [  234.915802]  do_one_initcall+0x71/0x250
      [  234.915807]  ? do_init_module+0x27/0x22e
      [  234.915811]  ? _cond_resched+0x1a/0x50
      [  234.915816]  ? kmem_cache_alloc_trace+0x1ec/0x270
      [  234.915820]  ? __vunmap+0x1e3/0x240
      [  234.915826]  do_init_module+0x5f/0x22e
      [  234.915831]  load_module+0x2525/0x2d40
      [  234.915848]  __do_sys_finit_module+0xe5/0x120
      [  234.915850]  ? __do_sys_finit_module+0xe5/0x120
      [  234.915862]  __x64_sys_finit_module+0x1a/0x20
      [  234.915865]  do_syscall_64+0x57/0x1b0
      [  234.915870]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
      [  234.915872] RIP: 0033:0x7f4ca3168839
      [  234.915876] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
      [  234.915878] RSP: 002b:00007ffcea3db3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
      [  234.915881] RAX: ffffffffffffffda RBX: 000055af22c29340 RCX: 00007f4ca3168839
      [  234.915882] RDX: 0000000000000000 RSI: 000055af22c38390 RDI: 0000000000000001
      [  234.915884] RBP: 000055af22c38390 R08: 0000000000000000 R09: 0000000000000000
      [  234.915885] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
      [  234.915887] R13: 000055af22c29060 R14: 0000000000040000 R15: 0000000000000000
      [  234.915896] ---[ end trace a60f19c54aa96ec3 ]---
      Signed-off-by: default avatarBrad Love <brad@nextdimension.cc>
      Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
      Signed-off-by: default avatarSean Young <sean@mess.org>
      Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
      9f984cac
  3. 20 May, 2020 16 commits