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: 41c0e939d7 ("mailbox: Add support for Hi3660 mailbox")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Ruyi Wang <wangruyi@huawei.com>
Cc: Kaihua Zhong <zhongkaihua@huawei.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
s/Hisilicon/HiSilicon/.
It should use capital S, according to
https://www.hisilicon.com/en.
Signed-off-by: Hao Fang <fanghao11@huawei.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Get rid of some boilerplate driver removal code by using the newly added
device-managed registration API.
Tested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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 <kevin.wangtao@hisilicon.com>
Reviewed-and-tested-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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 <Julia.Lawall@lip6.fr>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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 <leo.yan@linaro.org>
Signed-off-by: Ruyi Wang <wangruyi@huawei.com>
Signed-off-by: Kaihua Zhong <zhongkaihua@huawei.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
