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The SCP on different chips will require different DRAM sizes and IPI
shared buffer sizes based on varying requirements.
Signed-off-by: Olivia Wen <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
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This is the 1st preliminary steps for probing multi-core SCP.
The registers of config and l1tcm are common on single-core SCP
and multi-core SCP. Extract these registers out to reduce duplicated
fields in mtk_scp when multiple SCP instances are created.
Signed-off-by: Tinghan Shen <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Tested-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
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Fix the function name in kernel-doc comments to clear the below
warning:
drivers/remoteproc/mtk_scp_ipi.c:136: warning: expecting prototype for scp_ipi_lock(). Prototype was for scp_ipi_unlock() instead
Reported-by: Abaci Robot <[email protected]>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4544
Signed-off-by: Yang Li <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
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That variable was used twice, but now it's just used once to store
msecs_to_jiffies(wait), fed to wait_event_timeout(): we might as
well remove it for the sake of cleaning up.
This brings no functional changes.
Signed-off-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
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Convert the usage of an open-coded custom tight poll while loop
with the provided readl_poll_timeout_atomic() macro.
This cleanup brings no functional change.
Signed-off-by: AngeloGioacchino Del Regno <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
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Clocks are properly reference counted and do not need to be inside the
lock range.
Right now this triggers a false-positive lockdep warning on MT8192 based
Chromebooks, through a combination of mtk-scp that has a cros-ec-rpmsg
sub-device, the (actual) cros-ec I2C adapter registration, I2C client
(not on cros-ec) probe doing i2c transfers and enabling clocks.
This is a false positive because the cros-ec-rpmsg under mtk-scp does
not have an I2C adapter, and also each I2C adapter and cros-ec instance
have their own mutex.
Move the clk operations outside of the send_lock range.
Fixes: 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183")
Signed-off-by: Chen-Yu Tsai <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
[Fixed "Fixes:" tag line]
Signed-off-by: Mathieu Poirier <[email protected]>
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kernel documentation specification:
"The return value, if any, should be described in a dedicated section
named Return."
Signed-off-by: Arnaud Pouliquen <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
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Add support for mt8192 SCP.
Signed-off-by: Pi-Hsun Shih <[email protected]>
Reviewed-by: Tzung-Bi Shih <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Currently when pointer scp is null a dev_err is being called that
references the pointer which is the very thing we are trying to
avoid doing. Remove the extraneous error message to avoid this
issue.
Addresses-Coverity: ("Dereference after null check")
Fixes: 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183")
Signed-off-by: Colin Ian King <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Add a simple rpmsg support for mt8183 SCP, that use IPI / IPC directly.
Signed-off-by: Pi-Hsun Shih <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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Provide a basic driver to control Cortex M4 co-processor
Signed-off-by: Erin Lo <[email protected]>
Signed-off-by: Nicolas Boichat <[email protected]>
Signed-off-by: Pi-Hsun Shih <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>
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