kernel/linux.git/drivers/mailbox, branch v4.17.1

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

mailbox: tegra: relax TEGRA_HSP_MBOX Kconfig dependencies

2018-03-15T15:54:30+00:00

With the addition of the ARCH_TEGRA_194_SOC driver, we get a new Kconfig warning: warning: (ARCH_TEGRA_186_SOC && ARCH_TEGRA_194_SOC) selects TEGRA_HSP_MBOX which has unmet direct dependencies (MAILBOX && ARCH_TEGRA_186_SOC) It looks like the dependency is a bit too strict here, allowing the driver to be built for any Tegra chip avoids the problem. Fixes: 6f9ed07fde03 ("soc/tegra: Add Tegra194 SoC configuration option") Signed-off-by: Arnd Bergmann Acked-by: Thierry Reding Signed-off-by: Jassi Brar

maillbox: bcm-flexrm-mailbox: Use dma_pool_zalloc()

2018-03-15T15:53:36+00:00

Use dma_pool_zalloc() instead of dma_pool_alloc + memset Signed-off-by: Souptick Joarder Signed-off-by: Jassi Brar

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11T22:34:03+00:00

This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^$[^\"]*$$\$/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro Signed-off-by: Linus Torvalds

Merge tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration

2018-02-04T19:11:23+00:00

Pull mailbox updates from Jassi Brar: "Misc driver changes only: - TI-MsgMgr: Fix print format for a printk - TI-MSgMgr: SPDX license switch for the driver - QCOM-IPC: Convert driver to use regmap - QCOM-IPC: Spawn sibling clock device from mailbox driver" * tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration: dt-bindings: mailbox: qcom: Document the APCS clock binding mailbox: qcom: Create APCS child device for clock controller mailbox: qcom: Convert APCS IPC driver to use regmap mailbox: ti-msgmgr: Use %zu for size_t print format mailbox: ti-msgmgr: Switch to SPDX Licensing

mailbox: qcom: Create APCS child device for clock controller

2018-02-04T06:46:23+00:00

There is a clock controller functionality provided by the APCS hardware block of msm8916 devices. The device-tree would represent an APCS node with both mailbox and clock provider properties. Create a platform child device for the clock controller functionality so the driver can probe and use APCS as parent. Signed-off-by: Georgi Djakov Acked-by: Bjorn Andersson Signed-off-by: Jassi Brar

mailbox: qcom: Convert APCS IPC driver to use regmap

2018-02-04T06:46:09+00:00

This hardware block provides more functionalities that just IPC. Convert it to regmap to allow other child platform devices to use the same regmap. Signed-off-by: Georgi Djakov Acked-by: Bjorn Andersson Signed-off-by: Jassi Brar

mailbox: ti-msgmgr: Use %zu for size_t print format

2018-01-10T04:45:32+00:00

message->len is of type size_t and %d is incorrect format usage. Instead use %zu for handling size_t correctly. Signed-off-by: Nishanth Menon Signed-off-by: Jassi Brar

mailbox: ti-msgmgr: Switch to SPDX Licensing

2018-01-10T04:45:32+00:00

Switch to SPDX licensing and drop the GPL text which comes redundant. Signed-off-by: Nishanth Menon Signed-off-by: Jassi Brar

the rest of drivers/*: annotate ->poll() instances

2017-11-28T16:06:58+00:00

Signed-off-by: Al Viro