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2020-03-19maillbox: bcm-flexrm-mailbox: handle cmpl_pool dma allocation failureRayagonda Kokatanur1-0/+2
Handle 'cmpl_pool' dma memory allocation failure. Fixes: a9a9da47f8e6 ("mailbox: no need to check return value of debugfs_create functions") Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2020-03-19mailbox: sun6i-msgbox: Add a new mailbox driverSamuel Holland3-0/+337
Allwinner sun6i, sun8i, sun9i, and sun50i SoCs contain a hardware message box used for communication between the ARM CPUs and the ARISC management coprocessor. This mailbox contains 8 unidirectional 4-message FIFOs. Add a driver for it, so it can be used with the Linux mailbox framework. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>