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authorSuzuki K Poulose <suzuki.poulose@arm.com>2018-07-11 13:40:24 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-15 13:52:57 +0200
commitc34cc23f1dcb77c66b5cd074f83dee61bfcbe567 (patch)
tree2e8a321ad3870577ee129a0c4fe4332335a8655c /Documentation/devicetree/bindings/arm/coresight.txt
parentcoresight: tmc-etr buf: Add TMC scatter gather mode backend (diff)
downloadlinux-dev-c34cc23f1dcb77c66b5cd074f83dee61bfcbe567.tar.xz
linux-dev-c34cc23f1dcb77c66b5cd074f83dee61bfcbe567.zip
coresight: tmc: Add configuration support for trace buffer size
Now that we can dynamically switch between contiguous memory and SG table depending on the trace buffer size, provide the support for selecting an appropriate buffer size. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/coresight.txt')
-rw-r--r--Documentation/devicetree/bindings/arm/coresight.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
index 603d3c62e8c7..9aa30a156b57 100644
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ b/Documentation/devicetree/bindings/arm/coresight.txt
@@ -84,7 +84,8 @@ its hardware characteristcs.
* Optional property for TMC:
* arm,buffer-size: size of contiguous buffer space for TMC ETR
- (embedded trace router)
+ (embedded trace router). This property is obsolete. The buffer size
+ can be configured dynamically via buffer_size property in sysfs.
* arm,scatter-gather: boolean. Indicates that the TMC-ETR can safely
use the SG mode on this system.