linux-toradex.git/drivers/mailbox/Kconfig, branch v5.0

drivers: mailbox: Make ti-msgmr driver depend on ARCH_K3

2018-09-29T07:12:39+00:00

ti-msgmr driver can support K3 platforms as well.

Signed-off-by: Nishanth Menon 
Signed-off-by: Jassi Brar

mailbox: Add support for i.MX messaging unit

2018-08-15T04:23:07+00:00

The i.MX Messaging Unit is a two side block which allows applications
implement communication over this sides.

The MU includes the following features:
- Messaging control by interrupts or by polling
- Four general-purpose interrupt requests reflected to the other side
- Three general-purpose flags reflected to the other side
- Four receive registers with maskable interrupt
- Four transmit registers with maskable interrupt

Reviewed-by: Vladimir Zapolskiy 
Reviewed-by: Dong Aisheng 
Signed-off-by: Oleksij Rempel 
Signed-off-by: Jassi Brar

mailbox: mediatek: Add Mediatek CMDQ driver

2018-08-03T14:22:14+00:00

This patch is first version of Mediatek Command Queue(CMDQ) driver. The
CMDQ is used to help write registers with critical time limitation,
such as updating display configuration during the vblank. It controls
Global Command Engine (GCE) hardware to achieve this requirement.
Currently, CMDQ only supports display related hardwares, but we expect
it can be extended to other hardwares for future requirements.

Signed-off-by: Houlong Wei 
Signed-off-by: HS Liao 
Signed-off-by: CK Hu 
Signed-off-by: Jassi Brar

mailbox/drivers/hisi: Consolidate the Kconfig for the MAILBOX

2018-06-06T16:51:59+00:00

The current defconfig is inconsistent as it selects the mailbox and
the clock for the hi6220 and the hi3660 without having their Kconfigs
making sure the dependencies are correct. It ends up when selecting
different versions for the kernel (for example when git bisecting)
those options disappear and they don't get back, leading to unexpected
behaviors. In our case, the cpufreq driver does no longer work because
the clock fails to initialize due to the clock stub and the mailbox
missing.

In order to have the dependencies correctly set when defaulting, let's
do the same as commit 3a49afb84ca074e ("clk: enable hi655x common clk
automatically") where we select automatically the driver when the
parent driver is selected. With sensible defaults in place, we can leave
other choices for EXPERT.

Signed-off-by: Daniel Lezcano 
Signed-off-by: Leo Yan 
Signed-off-by: Jassi Brar

mailbox: add STMicroelectronics STM32 IPCC driver

2018-06-06T16:51:59+00:00

The STMicroelectronics STM32 Inter-Processor Communication Controller
(IPCC) is used for communicating data between two processors.
It provides a non blocking signaling mechanism to post and retrieve
communication data in an atomic way.

Signed-off-by: Fabien Dessenne 
Signed-off-by: Ludovic Barre 
Signed-off-by: Jassi Brar

mailbox: Remove depends on HAS_DMA in case of platform dependency

2018-06-06T16:51:15+00:00

Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Mark Brown 
Acked-by: Robin Murphy 
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

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

mailbox: Build Broadcom FlexRM driver as loadable module for iProc SOCs

2017-10-27T07:33:05+00:00

By default, we build Broadcom FlexRM driver as loadable module for
iProc SOCs so that kernel image is little smaller and we load FlexRM
driver only when required.

Signed-off-by: Anup Patel 
Reviewed-by: Scott Branden 
Signed-off-by: Jassi Brar

mailbox: bcm-flexrm-mailbox: add depends on ARCH_BCM_IPROC

2017-10-27T07:33:05+00:00

The Broadcom FlexRM Mailbox is only present in the Broadcom IPROC SoCs.
Add depends on ARCH_BCM_IPROC to BCM_FLEXRX_MBOX.

Signed-off-by: Scott Branden 
Reviewed-by: Ray Jui 
Signed-off-by: Jassi Brar