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- Introduce device-managed registration devm_mbox_controller_un/register and convert drivers to use it

Browse source 
- Introduce flush api to support clients that must busy-wait in atomic context
 - Support multiple controllers per device
 - Hi3660: a bugfix and constify ops structure
 - TI-MsgMgr: off by one bugfix.
 - BCM: switch to spdx license
 - Tegra-HSP: support for shared mailboxes and suspend/resume.
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Merge tag 'mailbox-v4.21' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:

 - Introduce device-managed registration
   devm_mbox_controller_un/register and convert drivers to use it

 - Introduce flush api to support clients that must busy-wait in atomic
   context

 - Support multiple controllers per device

 - Hi3660: a bugfix and constify ops structure

 - TI-MsgMgr: off by one bugfix.

 - BCM: switch to spdx license

 - Tegra-HSP: support for shared mailboxes and suspend/resume.

* tag 'mailbox-v4.21' of git://git.linaro.org/landing-teams/working/fujitsu/integration: (30 commits)
  mailbox: tegra-hsp: Use device-managed registration API
  mailbox: tegra-hsp: use devm_kstrdup_const()
  mailbox: tegra-hsp: Add suspend/resume support
  mailbox: tegra-hsp: Add support for shared mailboxes
  dt-bindings: tegra186-hsp: Add shared mailboxes
  mailbox: Allow multiple controllers per device
  mailbox: Support blocking transfers in atomic context
  mailbox: ti-msgmgr: Use device-managed registration API
  mailbox: stm32-ipcc: Use device-managed registration API
  mailbox: rockchip: Use device-managed registration API
  mailbox: qcom-apcs: Use device-managed registration API
  mailbox: platform-mhu: Use device-managed registration API
  mailbox: omap: Use device-managed registration API
  mailbox: mtk-cmdq: Remove needless devm_kfree() calls
  mailbox: mtk-cmdq: Use device-managed registration API
  mailbox: xgene-slimpro: Use device-managed registration API
  mailbox: sti: Use device-managed registration API
  mailbox: altera: Use device-managed registration API
  mailbox: imx: Use device-managed registration API
  mailbox: hi6220: Use device-managed registration API
  ...
This commit is contained in:
Linus Torvalds 2019-01-02 18:41:38 -08:00
commit 35ddb06a46
23 changed files with 612 additions and 247 deletions
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30
Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt
View file

@ -15,12 +15,15 @@ Required properties:
Array of strings.
one of:
- "nvidia,tegra186-hsp"
- "nvidia,tegra194-hsp", "nvidia,tegra186-hsp"
- reg : Offset and length of the register set for the device.
- interrupt-names
Array of strings.
Contains a list of names for the interrupts described by the interrupt
property. May contain the following entries, in any order:
- "doorbell"
- "sharedN", where 'N' is a number from zero up to the number of
external interrupts supported by the HSP instance minus one.
Users of this binding MUST look up entries in the interrupt property
by name, using this interrupt-names property to do so.
- interrupts
@ -29,12 +32,29 @@ Required properties:
in a matching order.
- #mbox-cells : Should be 2.
The mbox specifier of the "mboxes" property in the client node should
contain two data. The first one should be the HSP type and the second
one should be the ID that the client is going to use. Those information
can be found in the following file.
The mbox specifier of the "mboxes" property in the client node should contain
two cells. The first cell determines the HSP type and the second cell is used
to identify the mailbox that the client is going to use.
- <dt-bindings/mailbox/tegra186-hsp.h>.
For doorbells, the second cell specifies the index of the doorbell to use.
For shared mailboxes, the second cell is composed of two fields:
- bits 31..24:
A bit mask of flags that further specify how the shared mailbox will be
used. Valid flags are:
- bit 31:
Defines the direction of the mailbox. If set, the mailbox will be used
as a producer (i.e. used to send data). If cleared, the mailbox is the
consumer of data sent by a producer.
- bits 23.. 0:
The index of the shared mailbox to use. The number of available mailboxes
may vary by instance of the HSP block and SoC generation.
The following file contains definitions that can be used to construct mailbox
specifiers:
<dt-bindings/mailbox/tegra186-hsp.h>
Example: