kernel/git/stable/linux.git/drivers/mailbox/hi3660-mailbox.c, branch master

mailbox: remove superfluous internal header

2026-03-29T16:07:26+00:00

Quite some controller drivers use the defines from the internal header already. This prevents controller drivers outside the mailbox directory. Move the defines to the public controller header to allow this again as the defines are not strictly internal anyhow. Signed-off-by: Wolfram Sang Reviewed-by: Sudeep Holla Reviewed-by: Daniel Baluta Signed-off-by: Jassi Brar

mailbox: Explicitly include correct DT includes

2023-09-05T15:10:58+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Signed-off-by: Jassi Brar

mailbox: hi3660: convert struct comments to kernel-doc notation

2022-01-12T05:47:32+00:00

Convert hi3660 struct comments to kernel-doc notation and fix other kernel-doc warnings: drivers/mailbox/hi3660-mailbox.c:47: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Hi3660 mailbox channel information drivers/mailbox/hi3660-mailbox.c:62: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Hi3660 mailbox controller data hi3660-mailbox.c:53: warning: contents before sections hi3660-mailbox.c:67: warning: contents before sections Fixes: 41c0e939d70d ("mailbox: Add support for Hi3660 mailbox") Signed-off-by: Randy Dunlap Reported-by: kernel test robot Cc: Ruyi Wang Cc: Kaihua Zhong Reviewed-by: Leo Yan Signed-off-by: Jassi Brar

mailbox: hi3660: Make use of the helper function devm_platform_ioremap_resource()

2021-10-16T19:39:49+00:00

Use the devm_platform_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately Signed-off-by: Cai Huoqing Signed-off-by: Jassi Brar

mailbox: hisilicon: Use the correct HiSilicon copyright

2021-06-26T16:38:02+00:00

s/Hisilicon/HiSilicon/. It should use capital S, according to https://www.hisilicon.com/en. Signed-off-by: Hao Fang Reviewed-by: Leo Yan Signed-off-by: Jassi Brar

mailbox: hi3660: Use device-managed registration API

2018-12-21T22:49:25+00:00

Get rid of some boilerplate driver removal code by using the newly added device-managed registration API. Tested-by: Leo Yan Signed-off-by: Thierry Reding Signed-off-by: Jassi Brar

mailbox: Hi3660: Fixup mailbox state machine malfunction issue

2018-12-12T02:31:10+00:00

Current mailbox driver of Hi3660 release the mailbox directly before sending a new message which may cause last message lost and next message sending doesn't take effect actually. This patch fixs this issue by following the right progress below, each time before sending a message, mailbox driver will check whether the mailbox is in ready state, if last message has been acknowledged, the mailbox driver will clear the ack state to turn the mailbox to ready state again. Signed-off-by: Kevin Wangtao Reviewed-and-tested-by: Leo Yan Tested-by: Valentin Schneider Signed-off-by: Jassi Brar

mailbox: hi3660: constify mbox_chan_ops structure

2018-12-12T02:29:40+00:00

The mbox_chan_ops structure can be const as it is only stored in the ops field of an mbox_controller structure and this field is const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall Signed-off-by: Jassi Brar

mailbox: Add support for Hi3660 mailbox

2018-03-20T03:15:54+00:00

Hi3660 mailbox controller is used to send message within multiple processors, MCU, HIFI, etc. It supports 32 mailbox channels and every channel can only be used for single transferring direction. Once the channel is enabled, it needs to specify the destination interrupt and acknowledge interrupt, these two interrupt vectors are used to create the connection between the mailbox and interrupt controllers. The data transferring supports two modes, one is named as "automatic acknowledge" mode so after send message the kernel doesn't need to wait for acknowledge from remote and directly return; there have another mode is to rely on handling interrupt for acknowledge. This commit is for initial version driver, which only supports "automatic acknowledge" mode to support CPU clock, which is the only one consumer to use mailbox and has been verified. Later may enhance this driver for interrupt mode (e.g. for supporting HIFI). Signed-off-by: Leo Yan Signed-off-by: Ruyi Wang Signed-off-by: Kaihua Zhong Signed-off-by: Jassi Brar