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| author |   Mike Leach <mike.leach@linaro.org> | 2020-03-20 10:52:57 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-21 11:32:19 +0100 |
| commit | cffd054f1708a07330536a9704b70bc5d090cd98 (patch) | |
| tree | 2fab7938757c94c14634d1aea19dbaee72cda435 /drivers/hwtracing/coresight/coresight-priv.h | |
| parent | dt-bindings: arm: Adds CoreSight CTI hardware definitions (diff) | |
| download | linux-dev-cffd054f1708a07330536a9704b70bc5d090cd98.tar.xz linux-dev-cffd054f1708a07330536a9704b70bc5d090cd98.zip | |
coresight: cti: Add device tree support for v8 arch CTI
The v8 architecture defines the relationship between a PE, its optional ETM
and a CTI. Unlike non-architectural CTIs which are implementation defined,
this has a fixed set of connections which can therefore be represented as a
simple tag in the device tree.
This patch defines the tags needed to create an entry for this PE/ETM/CTI
relationship, and provides functionality to implement the connection model
in the CTI driver.
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200320165303.13681-7-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-priv.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-priv.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h index aba6b789c969..357ffef7b825 100644 --- a/drivers/hwtracing/coresight/coresight-priv.h +++ b/drivers/hwtracing/coresight/coresight-priv.h @@ -202,5 +202,7 @@ static inline void *coresight_get_uci_data(const struct amba_id *id) } void coresight_release_platform_data(struct coresight_platform_data *pdata); +struct coresight_device * +coresight_find_csdev_by_fwnode(struct fwnode_handle *r_fwnode); #endif |