<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/staging/fbtft, branch v6.7</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'staging-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging</title>
<updated>2023-11-04T01:31:04+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-11-04T01:31:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=4c7a0c95adc3ed8cc5e4c2187521aea3e40ba1aa'/>
<id>4c7a0c95adc3ed8cc5e4c2187521aea3e40ba1aa</id>
<content type='text'>
Pull staging driver updates from Greg KH:
 "Here is the big set of staging driver updates for 6.7-rc1. A bit
  bigger than 6.6 this time around, as it coincided with the Outreachy
  and mentorship application process, so we got a bunch of new
  developers sending in their first changes, which is nice to see.

  Also in here is a removal of the qlge ethernet driver, and the
  rtl8192u wireless driver. Both of these were very old and no one was
  maintaining them, the wireless driver removal was due to no one using
  it anymore, and no hardware to be found, and is part of a larger
  effort to remove unused and old wifi drivers from the system.

  The qlge ethernet driver did have one user pop up after it was
  dropped, and we are working with the network mainainers to figure out
  what tree it will come back in from and who will be responsible for
  it, and if it really is being used or not. Odds are it will show up in
  a network subsystem pull request after -rc1 is out, but we aren't sure
  yet.

  Other smaller changes in here are:

   - Lots of vc04_services work by Umang to clean up the mess created by
     the rpi developers long ago, bringing it almost into good enough
     shape to get out of staging, hopefully next major release, it's
     getting close.

   - rtl8192e variable cleanups and removal of unused code and
     structures

   - vme_user coding style cleanups

   - other small coding style cleanups to lots of the staging drivers

   - octeon typedef removals, and then last-minute revert when it was
     found to break the build in some configurations (it's a hard driver
     to build properly, none of the normal automated testing catches
     it.)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (256 commits)
  Revert "staging: octeon: remove typedef in enum cvmx_spi_mode_t"
  Revert "staging: octeon: remove typedef in enum cvmx_helper_interface_mode_t"
  Revert "staging: octeon: remove typedef in enum cvmx_pow_wait_t"
  Revert "staging: octeon: remove typedef in struct cvmx_pko_lock_t"
  Revert "staging: octeon: remove typedef in enum cvmx_pko_status_t"
  Revert "staging: octeon: remove typedef in structs cvmx_pip_port_status_t and cvmx_pko_port_status_t"
  staging: vt6655: Type encoding info dropped from variable name "byRxRate"
  staging: vt6655: Type encoding info dropped from function name "CARDbUpdateTSF"
  staging: vt6655: Type encoding info dropped from function name "CARDvSetRSPINF"
  staging: vt6655: Type encoding info dropped from function name "CARDbyGetPktType"
  staging: vt6655: Type encoding info dropped from variable name "byPacketType"
  staging: vt6655: Type encoding info dropped from function name "CARDbSetPhyParameter"
  staging: vt6655: Type encoding info dropped from variable name "pbyRsvTime"
  staging: vt6655: Type encoding info dropped from variable name "pbyTxRate"
  staging: vt6655: Type encoding info dropped from function name "s_vCalculateOFDMRParameter"
  staging: vt6655: Type encoding info dropped from array name "cwRXBCNTSFOff"
  staging: fbtft: Convert to platform remove callback returning void
  staging: olpc_dcon: Remove I2C_CLASS_DDC support
  staging: vc04_services: use snprintf instead of sprintf
  staging: rtl8192e: Fix line break issue at priv-&gt;rx_buf[priv-&gt;rx_idx]
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull staging driver updates from Greg KH:
 "Here is the big set of staging driver updates for 6.7-rc1. A bit
  bigger than 6.6 this time around, as it coincided with the Outreachy
  and mentorship application process, so we got a bunch of new
  developers sending in their first changes, which is nice to see.

  Also in here is a removal of the qlge ethernet driver, and the
  rtl8192u wireless driver. Both of these were very old and no one was
  maintaining them, the wireless driver removal was due to no one using
  it anymore, and no hardware to be found, and is part of a larger
  effort to remove unused and old wifi drivers from the system.

  The qlge ethernet driver did have one user pop up after it was
  dropped, and we are working with the network mainainers to figure out
  what tree it will come back in from and who will be responsible for
  it, and if it really is being used or not. Odds are it will show up in
  a network subsystem pull request after -rc1 is out, but we aren't sure
  yet.

  Other smaller changes in here are:

   - Lots of vc04_services work by Umang to clean up the mess created by
     the rpi developers long ago, bringing it almost into good enough
     shape to get out of staging, hopefully next major release, it's
     getting close.

   - rtl8192e variable cleanups and removal of unused code and
     structures

   - vme_user coding style cleanups

   - other small coding style cleanups to lots of the staging drivers

   - octeon typedef removals, and then last-minute revert when it was
     found to break the build in some configurations (it's a hard driver
     to build properly, none of the normal automated testing catches
     it.)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (256 commits)
  Revert "staging: octeon: remove typedef in enum cvmx_spi_mode_t"
  Revert "staging: octeon: remove typedef in enum cvmx_helper_interface_mode_t"
  Revert "staging: octeon: remove typedef in enum cvmx_pow_wait_t"
  Revert "staging: octeon: remove typedef in struct cvmx_pko_lock_t"
  Revert "staging: octeon: remove typedef in enum cvmx_pko_status_t"
  Revert "staging: octeon: remove typedef in structs cvmx_pip_port_status_t and cvmx_pko_port_status_t"
  staging: vt6655: Type encoding info dropped from variable name "byRxRate"
  staging: vt6655: Type encoding info dropped from function name "CARDbUpdateTSF"
  staging: vt6655: Type encoding info dropped from function name "CARDvSetRSPINF"
  staging: vt6655: Type encoding info dropped from function name "CARDbyGetPktType"
  staging: vt6655: Type encoding info dropped from variable name "byPacketType"
  staging: vt6655: Type encoding info dropped from function name "CARDbSetPhyParameter"
  staging: vt6655: Type encoding info dropped from variable name "pbyRsvTime"
  staging: vt6655: Type encoding info dropped from variable name "pbyTxRate"
  staging: vt6655: Type encoding info dropped from function name "s_vCalculateOFDMRParameter"
  staging: vt6655: Type encoding info dropped from array name "cwRXBCNTSFOff"
  staging: fbtft: Convert to platform remove callback returning void
  staging: olpc_dcon: Remove I2C_CLASS_DDC support
  staging: vc04_services: use snprintf instead of sprintf
  staging: rtl8192e: Fix line break issue at priv-&gt;rx_buf[priv-&gt;rx_idx]
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>staging: fbtft: Convert to platform remove callback returning void</title>
<updated>2023-10-27T11:10:11+00:00</updated>
<author>
<name>Uwe Kleine-König</name>
<email>u.kleine-koenig@pengutronix.de</email>
</author>
<published>2023-10-26T21:44:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=b83b7368258aeb5104c2ff7331326bfeefea9370'/>
<id>b83b7368258aeb5104c2ff7331326bfeefea9370</id>
<content type='text'>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

The function fbtft_driver_remove_pdev() (that exists several times as it's
part of a macro expansion) returns zero unconditionally, so it can be
trivially converted to return void without semantic changes.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Link: https://lore.kernel.org/r/20231026214407.2508590-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

The function fbtft_driver_remove_pdev() (that exists several times as it's
part of a macro expansion) returns zero unconditionally, so it can be
trivially converted to return void without semantic changes.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Link: https://lore.kernel.org/r/20231026214407.2508590-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'drm-misc-next-2023-09-11-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next</title>
<updated>2023-09-22T06:28:36+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2023-09-22T06:28:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=f107ff76a8c242b298413ef52db9978dc3fe0153'/>
<id>f107ff76a8c242b298413ef52db9978dc3fe0153</id>
<content type='text'>
drm-misc-next for v6.7-rc1:

UAPI Changes:
- Nouveau changed to not set NO_PREFETCH flag explicitly.

Cross-subsystem Changes:
- Update documentation of dma-buf intro and uapi.
- fbdev/sbus fixes.
- Use initializer macros in a lot of fbdev drivers.
- Add Boris Brezillon as Panfrost driver maintainer.
- Add Jessica Zhang as drm/panel reviewer.
- Make more fbdev drivers use fb_ops helpers for deferred io.
- Small hid trailing whitespace fix.
- Use fb_ops in hid/picolcd

Core Changes:
- Assorted small fixes to ttm tests, drm/mst.
- Documentation updates to bridge.
- Add kunit tests for some drm_fb functions.
- Rework drm_debugfs implementation.
- Update xe documentation to mark todos as completed.

Driver Changes:
- Add support to rockchip for rv1126 mipi-dsi and vop.
- Assorted small fixes to nouveau, bridge/samsung-dsim,
  bridge/lvds-codec, loongson, rockchip, panfrost, gma500, repaper,
  komeda, virtio, ssd130x.
- Add support for simple panels Mitsubishi AA084XE01,
  JDI LPM102A188A,
- Documentation updates to accel/ivpu.
- Some nouveau scheduling/fence fixes.
- Power management related fixes and other fixes to ivpu.
- Assorted bridge/it66121 fixes.
- Make platform drivers return void in remove() callback.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

From: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/3da6554b-3b47-fe7d-c4ea-21f4f819dbb6@linux.intel.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
drm-misc-next for v6.7-rc1:

UAPI Changes:
- Nouveau changed to not set NO_PREFETCH flag explicitly.

Cross-subsystem Changes:
- Update documentation of dma-buf intro and uapi.
- fbdev/sbus fixes.
- Use initializer macros in a lot of fbdev drivers.
- Add Boris Brezillon as Panfrost driver maintainer.
- Add Jessica Zhang as drm/panel reviewer.
- Make more fbdev drivers use fb_ops helpers for deferred io.
- Small hid trailing whitespace fix.
- Use fb_ops in hid/picolcd

Core Changes:
- Assorted small fixes to ttm tests, drm/mst.
- Documentation updates to bridge.
- Add kunit tests for some drm_fb functions.
- Rework drm_debugfs implementation.
- Update xe documentation to mark todos as completed.

Driver Changes:
- Add support to rockchip for rv1126 mipi-dsi and vop.
- Assorted small fixes to nouveau, bridge/samsung-dsim,
  bridge/lvds-codec, loongson, rockchip, panfrost, gma500, repaper,
  komeda, virtio, ssd130x.
- Add support for simple panels Mitsubishi AA084XE01,
  JDI LPM102A188A,
- Documentation updates to accel/ivpu.
- Some nouveau scheduling/fence fixes.
- Power management related fixes and other fixes to ivpu.
- Assorted bridge/it66121 fixes.
- Make platform drivers return void in remove() callback.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

From: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/3da6554b-3b47-fe7d-c4ea-21f4f819dbb6@linux.intel.com
</pre>
</div>
</content>
</entry>
<entry>
<title>staging/fbtft: Use fb_ops helpers for deferred I/O</title>
<updated>2023-09-05T12:14:04+00:00</updated>
<author>
<name>Thomas Zimmermann</name>
<email>tzimmermann@suse.de</email>
</author>
<published>2023-08-28T13:14:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c3ba2ada133de52a713f6702afcd1de7443156ae'/>
<id>c3ba2ada133de52a713f6702afcd1de7443156ae</id>
<content type='text'>
Generate callback functions for struct fb_ops with the fbdev macro
FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(). Initialize struct fb_ops to
the generated functions with an fbdev initializer macro.

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-9-tzimmermann@suse.de
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Generate callback functions for struct fb_ops with the fbdev macro
FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(). Initialize struct fb_ops to
the generated functions with an fbdev initializer macro.

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-9-tzimmermann@suse.de
</pre>
</div>
</content>
</entry>
<entry>
<title>staging/fbtft: Initialize fb_op struct as static const</title>
<updated>2023-09-05T12:14:03+00:00</updated>
<author>
<name>Thomas Zimmermann</name>
<email>tzimmermann@suse.de</email>
</author>
<published>2023-08-28T13:14:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=b1adff68e384eed58c2fee7f6316aa84274caad4'/>
<id>b1adff68e384eed58c2fee7f6316aa84274caad4</id>
<content type='text'>
Replace dynamic allocation of the fb_ops instance with static
allocation. Initialize the fields at module-load time. The owner
field changes to THIS_MODULE, as in all other fbdev drivers.

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-8-tzimmermann@suse.de
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Replace dynamic allocation of the fb_ops instance with static
allocation. Initialize the fields at module-load time. The owner
field changes to THIS_MODULE, as in all other fbdev drivers.

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Acked-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230828132131.29295-8-tzimmermann@suse.de
</pre>
</div>
</content>
</entry>
<entry>
<title>BackMerge tag 'v6.5-rc7' into drm-next</title>
<updated>2023-08-23T21:26:06+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2023-08-23T21:26:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=fdebffeba8b877368ddcc139c26278c1c97931a4'/>
<id>fdebffeba8b877368ddcc139c26278c1c97931a4</id>
<content type='text'>
Linux 6.5-rc7

This is needed for the CI stuff and the msm pull has fixes in it.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Linux 6.5-rc7

This is needed for the CI stuff and the msm pull has fixes in it.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>staging: fbtft: ili9341: use macro FBTFT_REGISTER_SPI_DRIVER</title>
<updated>2023-07-27T07:53:37+00:00</updated>
<author>
<name>Raphael Gallais-Pou</name>
<email>rgallaispou@gmail.com</email>
</author>
<published>2023-07-18T17:20:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=4912649e1cf0317bf563f91655e04a303cacaf8d'/>
<id>4912649e1cf0317bf563f91655e04a303cacaf8d</id>
<content type='text'>
Using FBTFT_REGISTER_DRIVER resolves to a NULL struct spi_device_id. This
ultimately causes a warning when the module probes. Fixes it.

Signed-off-by: Raphael Gallais-Pou &lt;rgallaispou@gmail.com&gt;
Link: https://lore.kernel.org/r/20230718172024.67488-1-rgallaispou@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Using FBTFT_REGISTER_DRIVER resolves to a NULL struct spi_device_id. This
ultimately causes a warning when the module probes. Fixes it.

Signed-off-by: Raphael Gallais-Pou &lt;rgallaispou@gmail.com&gt;
Link: https://lore.kernel.org/r/20230718172024.67488-1-rgallaispou@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>staging: Remove flag FBINFO_FLAG_DEFAULT from fbdev drivers</title>
<updated>2023-07-24T14:50:39+00:00</updated>
<author>
<name>Thomas Zimmermann</name>
<email>tzimmermann@suse.de</email>
</author>
<published>2023-07-15T18:51:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=cdeb052cdb1944948eeac69274f4c305345ddd22'/>
<id>cdeb052cdb1944948eeac69274f4c305345ddd22</id>
<content type='text'>
The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by framebuffer_alloc(). So do
not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v2:
	* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Sudip Mukherjee &lt;sudipm.mukherjee@gmail.com&gt;
Cc: Teddy Wang &lt;teddy.wang@siliconmotion.com&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-13-tzimmermann@suse.de
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by framebuffer_alloc(). So do
not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v2:
	* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Sudip Mukherjee &lt;sudipm.mukherjee@gmail.com&gt;
Cc: Teddy Wang &lt;teddy.wang@siliconmotion.com&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-13-tzimmermann@suse.de
</pre>
</div>
</content>
</entry>
<entry>
<title>fbdev: Make support for userspace interfaces configurable</title>
<updated>2023-06-27T07:58:51+00:00</updated>
<author>
<name>Thomas Zimmermann</name>
<email>tzimmermann@suse.de</email>
</author>
<published>2023-06-13T11:07:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=701d2054fa317188cd4039c84e72c73254013b23'/>
<id>701d2054fa317188cd4039c84e72c73254013b23</id>
<content type='text'>
Add Kconfig option CONFIG_FB_DEVICE and make the virtual fbdev
device optional. If the new option has not been selected, fbdev
does not create files in devfs, sysfs or procfs.

Most modern Linux systems run a DRM-based graphics stack that uses
the kernel's framebuffer console, but has otherwise deprecated fbdev
support. Yet fbdev userspace interfaces are still present.

The option makes it possible to use the fbdev subsystem as console
implementation without support for userspace. This closes potential
entry points to manipulate kernel or I/O memory via framebuffers. It
also prevents the execution of driver code via ioctl or sysfs, both
of which might allow malicious software to exploit bugs in the fbdev
code.

A small number of fbdev drivers require struct fbinfo.dev to be
initialized, usually for the support of sysfs interface. Make these
drivers depend on FB_DEVICE. They can later be fixed if necessary.

v3:
	* effect -&gt; affect in Kconfig help (Daniel)
v2:
	* set FB_DEVICE default to y (Geert)
	* comment on {get,put}_device() (Sam)
	* Kconfig fixes (Sam)
	* add TODO item about FB_DEVICE dependencies (Sam)

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-39-tzimmermann@suse.de
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add Kconfig option CONFIG_FB_DEVICE and make the virtual fbdev
device optional. If the new option has not been selected, fbdev
does not create files in devfs, sysfs or procfs.

Most modern Linux systems run a DRM-based graphics stack that uses
the kernel's framebuffer console, but has otherwise deprecated fbdev
support. Yet fbdev userspace interfaces are still present.

The option makes it possible to use the fbdev subsystem as console
implementation without support for userspace. This closes potential
entry points to manipulate kernel or I/O memory via framebuffers. It
also prevents the execution of driver code via ioctl or sysfs, both
of which might allow malicious software to exploit bugs in the fbdev
code.

A small number of fbdev drivers require struct fbinfo.dev to be
initialized, usually for the support of sysfs interface. Make these
drivers depend on FB_DEVICE. They can later be fixed if necessary.

v3:
	* effect -&gt; affect in Kconfig help (Daniel)
v2:
	* set FB_DEVICE default to y (Geert)
	* comment on {get,put}_device() (Sam)
	* Kconfig fixes (Sam)
	* add TODO item about FB_DEVICE dependencies (Sam)

Signed-off-by: Thomas Zimmermann &lt;tzimmermann@suse.de&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-39-tzimmermann@suse.de
</pre>
</div>
</content>
</entry>
<entry>
<title>staging: Replace all spi-&gt;chip_select and spi-&gt;cs_gpiod references with function call</title>
<updated>2023-03-11T12:34:05+00:00</updated>
<author>
<name>Amit Kumar Mahapatra</name>
<email>amit.kumar-mahapatra@amd.com</email>
</author>
<published>2023-03-10T17:32:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=caa9d3475b1c5566f0272273c147cc9b72f2be28'/>
<id>caa9d3475b1c5566f0272273c147cc9b72f2be28</id>
<content type='text'>
Supporting multi-cs in spi drivers would require the chip_select &amp; cs_gpiod
members of struct spi_device to be an array. But changing the type of these
members to array would break the spi driver functionality. To make the
transition smoother introduced four new APIs to get/set the
spi-&gt;chip_select &amp; spi-&gt;cs_gpiod and replaced all spi-&gt;chip_select and
spi-&gt;cs_gpiod references with get or set API calls.
While adding multi-cs support in further patches the chip_select &amp; cs_gpiod
members of the spi_device structure would be converted to arrays &amp; the
"idx" parameter of the APIs would be used as array index i.e.,
spi-&gt;chip_select[idx] &amp; spi-&gt;cs_gpiod[idx] respectively.

Signed-off-by: Amit Kumar Mahapatra &lt;amit.kumar-mahapatra@amd.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Michal Simek &lt;michal.simek@amd.com&gt;
Link: https://lore.kernel.org/r/20230310173217.3429788-6-amit.kumar-mahapatra@amd.com
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Supporting multi-cs in spi drivers would require the chip_select &amp; cs_gpiod
members of struct spi_device to be an array. But changing the type of these
members to array would break the spi driver functionality. To make the
transition smoother introduced four new APIs to get/set the
spi-&gt;chip_select &amp; spi-&gt;cs_gpiod and replaced all spi-&gt;chip_select and
spi-&gt;cs_gpiod references with get or set API calls.
While adding multi-cs support in further patches the chip_select &amp; cs_gpiod
members of the spi_device structure would be converted to arrays &amp; the
"idx" parameter of the APIs would be used as array index i.e.,
spi-&gt;chip_select[idx] &amp; spi-&gt;cs_gpiod[idx] respectively.

Signed-off-by: Amit Kumar Mahapatra &lt;amit.kumar-mahapatra@amd.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Michal Simek &lt;michal.simek@amd.com&gt;
Link: https://lore.kernel.org/r/20230310173217.3429788-6-amit.kumar-mahapatra@amd.com
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
