linux-stable.git/Documentation/driver-model, branch master

docs: driver-model: move it to the driver-api book

2019-07-15T14:03:02+00:00

The audience for the Kernel driver-model is clearly Kernel hackers.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Jeff Kirsher  # ice driver changes

docs: driver-model: convert docs to ReST and rename to *.rst

2019-06-21T13:47:26+00:00

Convert the various documents at the driver-model, preparing
them to be part of the driver-api book.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Jeff Kirsher  # ice
Signed-off-by: Greg Kroah-Hartman

i2c: core: add device-managed version of i2c_new_dummy

2019-05-17T17:29:40+00:00

i2c_new_dummy is typically called from the probe function of the
driver for the primary i2c client. It requires calls to
i2c_unregister_device in the error path of the probe function and
in the remove function.
This can be simplified by introducing a device-managed version.

Note the changed error case return value type: i2c_new_dummy returns
NULL whilst devm_i2c_new_dummy_device returns an ERR_PTR.

Signed-off-by: Heiner Kallweit 
[wsa: rename new functions and fix minor kdoc issues]
Signed-off-by: Wolfram Sang 
Reviewed-by: Peter Rosin 
Reviewed-by: Kieran Bingham 
Reviewed-by: Bartosz Golaszewski 
Signed-off-by: Wolfram Sang

Merge tag 'drm-misc-next-2019-03-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2019-03-25T10:05:12+00:00

drm-misc-next for 5.2:

UAPI Changes:
- Add Colorspace connector property (Uma)
- fourcc: Several new YUV formats from ARM (Brian & Ayan)
- fourcc: Fix merge conflicts between new formats above and Swati's that
  went in via topic/hdr-formats-2019-03-07 branch (Maarten)

Cross-subsystem Changes:
- Typed component support via topic/component-typed-2019-02-11 (Maxime/Daniel)

Core Changes:
- Improve component helper documentation (Daniel)
- Avoid calling drm_dev_unregister() twice on unplugged devices (Noralf)
- Add device managed (devm) drm_device init function (Noralf)
- Graduate TINYDRM_MODE to DRM_SIMPLE_MODE in core (Noralf)
- Move MIPI/DSI rate control params computation into core from i915 (David)
- Add support for shmem backed gem objects (Noralf)

Driver Changes:
- various: Use of_node_name_eq for node name comparisons (Rob Herring)
- sun4i: Add DSI burst mode support (Konstantin)
- panel: Add Ronbo RB070D30 MIPI/DSI panel support (Konstantin)
- virtio: A few prime improvements (Gerd)
- tinydrm: Remove tinydrm_device (Noralf)
- vc4: Add load tracker to driver to detect underflow in atomic check (Boris)
- vboxvideo: Move it out of staging \o/ (Hans)
- v3d: Add support for V3D v4.2 (Eric)

Cc: Konstantin Sudakov 
Cc: Rob Herring 
Cc: Daniel Vetter 
Cc: Maxime Ripard 
Cc: Uma Shankar 
Cc: Noralf Trønnes 
Cc: Gerd Hoffmann 
Cc: David Francis 
Cc: Boris Brezillon 
Cc: Eric Anholt 
Cc: Hans de Goede 
Cc: Brian Starkey 
Cc: Ayan Kumar Halder 
Cc: Maarten Lankhorst 
Signed-off-by: Daniel Vetter 

From: Sean Paul 
Link: https://patchwork.freedesktop.org/patch/msgid/20190321170805.GA50145@art_vandelay

Merge branches 'clk-optional', 'clk-devm-clkdev-register', 'clk-allwinner', 'clk-meson' and 'clk-renesas' into clk-next

2019-03-08T18:27:21+00:00

 - Add a {devm_}clk_get_optional() API
 - Add devm_clk_hw_register_clkdev() API to manage clkdev lookups

* clk-optional:
  clk: Add (devm_)clk_get_optional() functions
  clk: Add comment about __of_clk_get_by_name() error values

* clk-devm-clkdev-register:
  clk: clk-st: avoid clkdev lookup leak at remove
  clk: clk-max77686: Clean clkdev lookup leak and use devm
  clkdev: add managed clkdev lookup registration

* clk-allwinner:
  clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it

* clk-meson: (22 commits)
  clk: meson: meson8b: fix the naming of the APB clocks
  dt-bindings: clock: meson8b: add APB clock definition
  clk: meson: Add G12A AO Clock + Reset Controller
  dt-bindings: clk: add G12A AO Clock and Reset Bindings
  clk: meson: factorise meson64 peripheral clock controller drivers
  clk: meson: g12a: add peripheral clock controller
  dt-bindings: clk: meson: add g12a periph clock controller bindings
  clk: meson: pll: update driver for the g12a
  clk: meson: rework and clean drivers dependencies
  clk: meson: axg-audio does not require syscon
  clk: meson: use CONFIG_ARCH_MESON to enter meson clk directory
  clk: export some clk_hw function symbols for module drivers
  clk: meson: ao-clkc: claim clock controller input clocks from DT
  clk: meson: axg: claim clock controller input clock from DT
  clk: meson: gxbb: claim clock controller input clock from DT
  clk: meson: meson8b: add the GPU clock tree
  clk: meson: meson8b: use a separate clock table for Meson8
  clk: meson: axg-ao: add 32k generation subtree
  clk: meson: gxbb-ao: replace cec-32k with the dual divider
  clk: meson: add dual divider clock driver
  ...

* clk-renesas:
  clk: renesas: r8a774a1: Fix LAST_DT_CORE_CLK
  clk: renesas: r8a774c0: Fix LAST_DT_CORE_CLK
  clk: renesas: r8a774c0: Add TMU clock
  clk: renesas: r8a77980: Add RPC clocks
  clk: renesas: rcar-gen3: Add RPC clocks
  clk: renesas: rcar-gen3: Add spinlock
  clk: renesas: rcar-gen3: Factor out cpg_reg_modify()
  clk: renesas: r8a774c0: Correct parent clock of DU
  clk: renesas: r8a774a1: Add missing CANFD clock
  clk: renesas: r8a774c0: Add missing CANFD clock

drm: Add devm_drm_dev_init()

2019-03-04T14:23:05+00:00

This adds a resource managed (devres) version of drm_dev_init().

v2: Remove devm_drm_dev_register() since we can't touch hw in devm
    release functions and drivers want to disable hw on driver module
    unload (Daniel Vetter, Greg KH)

Cc: Daniel Vetter 
Cc: Greg KH 
Signed-off-by: Noralf Trønnes 
Acked-by: Gerd Hoffmann 
Link: https://patchwork.freedesktop.org/patch/msgid/20190225144232.20761-3-noralf@tronnes.org

clkdev: add managed clkdev lookup registration

2019-02-06T18:35:02+00:00

Clkdev registration lacks of managed registration functions and it
seems few drivers do not drop clkdev lookups at exit. Add
devm_clk_hw_register_clkdev and devm_clk_release_clkdev to ease lookup
releasing at exit.

Signed-off-by: Matti Vaittinen 
Signed-off-by: Stephen Boyd

clk: Add (devm_)clk_get_optional() functions

2019-02-06T18:33:10+00:00

This adds clk_get_optional() and devm_clk_get_optional() functions to get
optional clocks.

They behave the same as (devm_)clk_get() except where there is no clock
producer. In this case, instead of returning -ENOENT, the function
returns NULL. This makes error checking simpler and allows
clk_prepare_enable, etc to be called on the returned reference
without additional checks.

Signed-off-by: Phil Edworthy 
Reviewed-by: Andy Shevchenko 
Cc: Russell King 
[sboyd@kernel.org: Document in devres.txt]
Signed-off-by: Stephen Boyd

Documentation: driver core: remove use of BUS_ATTR

2019-01-08T14:17:45+00:00

We are getting rid of the "raw" BUS_ATTR() macro, so fix up the
documentation to not refer to it anymore.

Cc: "Rafael J. Wysocki" 
Signed-off-by: Greg Kroah-Hartman

dma-mapping: remove dmam_{declare,release}_coherent_memory

2019-01-04T08:03:17+00:00

These functions have never been used.

Signed-off-by: Christoph Hellwig