If the rproc driver is probed before the mailbox driver and if the rproc
Device Tree node has some mailbox properties, the rproc driver probe
shall be deferred instead of being probed without mailbox support.
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Link: https://lore.kernel.org/r/1573812188-19842-1-git-send-email-fabien.dessenne@st.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
If the device node defines the 'wakeup-source' property, use the WDG
exti IRQ as a wakeup source of the system.
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Link: https://lore.kernel.org/r/1566833923-16718-3-git-send-email-fabien.dessenne@st.com
[bjorn: Replace ifdef with __maybe_unused for suspend/resume functions]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The mailbox callback is under interrupt context. A consequence is
that RPMsg Callbacks are also in interrupt context.
Create workqueue to treat the callbacks in normal context.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When remoteproc stops a firmware, it sets the MCU PDDS flag, allowing
the platform to reach the Standby power mode if needed.
Symmetrically, clear this flag before running a firmware.
This fixes the issue where the system goes to Standby mode when the
MCU crashes while MPU is in CSTOP mode.
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When compile testing this driver without SMCC support enabled,
we get a link error:
drivers/remoteproc/stm32_rproc.o: In function `stm32_rproc_start':
stm32_rproc.c:(.text+0x776): undefined reference to `__arm_smccc_smc'
drivers/remoteproc/stm32_rproc.o: In function `stm32_rproc_stop':
stm32_rproc.c:(.text+0x92c): undefined reference to `__arm_smccc_smc'
Make the actual call to arm_smccc_smc conditional on the Kconfig
symbol controlling its implementation.
Fixes: 13140de09c ("remoteproc: stm32: add an ST stm32_rproc driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This patch introduces a new remoteproc driver to control Cortex-M4
co-processor of the STM32 family.
It provides with the following features:
- start and stop
- dedicated co-processor memory regions registration
- coredump and recovery
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
[bjorn: Fixup of dev_dbg types and cast of int to pointer in mbox send]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fabien Dessenne