linux/drivers/mailbox, branch v4.7

mailbox: Fix devm_ioremap_resource error detection code

2016-05-08T17:14:46Z

devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure. The Coccinelle semantic patch used to make this change is as follows: @@ expression e,e1; statement S; @@ *e = devm_ioremap_resource(...); if (!e1) S Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Jassi Brar

mailbox/omap: kill omap_mbox_{save/restore}_ctx() functions

2016-04-26T04:49:38Z

The omap_mbox_save_ctx() and omap_mbox_restore_ctx() API were previously provided to OMAP mailbox clients to save and restore the mailbox context during system suspend/resume. The save and restore functionality is now implemented through System PM driver callbacks, and there is no need for these functions, so kill these API. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: check for any unread messages during suspend

2016-04-26T04:49:38Z

The OMAP mailbox driver is used by clients to communicate with remote processors in general. The mailbox clients are expected to have stopped communicating with these remote processors during a system suspend. The OMAP mailbox fifos are expected to not have any messages as such. Add a check for any pending unprocessed messages in the suspend callback, to detect any communication protocol issues of the mailbox clients. The system suspend is aborted if any messages are found. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: add support for suspend/resume

2016-04-26T04:49:38Z

Support has been added to the OMAP mailbox driver to allow it to work across a system suspend/resume. The OMAP mailbox driver requires only the interrupt configuration registers to be saved and restored, and this is done in the suspend/resume callbacks. The registers need to be saved only if there are active clients at the time of suspend. The enabling and disabling of the mailbox clocks is done automatically by the omap_device layer. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: store mailbox interrupt type in omap_mbox_device

2016-04-26T04:49:38Z

The interrupt type used for identifying the layout of the interrupt configuration registers between OMAP4+ SoCs and older SoCs is stored only in the sub-mailbox structures for easier access. Store this type in the the omap_mbox_device structure as well along with the other global variables. This is being done to facilitate the context save and restore of appropriate registers during system suspend/resume. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: add blank lines after declarations

2016-04-26T04:49:37Z

Fix couple of checkpatch warnings of the type, "WARNING: Missing a blank line after declarations" Also, fixed a warning about a space after a typecast while at this. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: remove FSF mailing address paragraph

2016-04-26T04:49:37Z

Remove the paragraph about writing to the Free Software Foundation's mailing address from the GPL license header as this address can change. This fixes the corresponding checkpatch warning. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: use variable name for sizeof() operator

2016-04-26T04:49:37Z

Fix the code formatting to use the kernel preferred style of using the actual variables to determize the size using the sizeof() operator. This fixes the corresponding checkpatch warning as well. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

mailbox/omap: drop legacy platform device support

2016-04-26T04:49:37Z

OMAP mailbox devices can no longer be created in legacy non-DT mode, all the relevant code has been cleaned up. The OMAP mailbox driver will only support devices created from DT going forward, so drop the legacy platform device support from the driver. Signed-off-by: Suman Anna Signed-off-by: Jassi Brar

Merge branch 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration

2016-04-15T01:40:47Z

Pull mailbox fixes from Jussi Brar: "Misc fixes: mailbox-test driver: - prevent memory leak and another cosmetic change mailbox: - change the returned error code Xgene driver: - return -ENOMEM instead of PTR_ERR for failed devm_kzalloc" * 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration: mailbox: Stop using ENOSYS for anything other than unimplemented syscalls mailbox: mailbox-test: Prevent memory leak mailbox: mailbox-test: Use more consistent format for calling copy_from_user() mailbox: xgene-slimpro: Fix wrong test for devm_kzalloc