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| author | Georgi Djakov <georgi.djakov@linaro.org> | 2020-05-10 18:30:37 +0300 |
|---|---|---|
| committer | Georgi Djakov <georgi.djakov@linaro.org> | 2020-05-10 18:30:37 +0300 |
| commit | 7d374b20908338c9fbb03ea8022a11f3b3e0e55f (patch) | |
| tree | 158aedc76c869348cdf39f429ebb0f308bd0d1f1 /drivers/interconnect/internal.h | |
| parent | 360a10285e7e2722f6869f5dc8e81214a72b57f6 (diff) | |
| download | linux-7d374b20908338c9fbb03ea8022a11f3b3e0e55f.tar.xz | |
interconnect: Add helpers for enabling/disabling a path
There is a repeated pattern in multiple drivers where they want to switch
the bandwidth between zero and some other value. This is happening often
in the suspend/resume callbacks. Let's add helper functions to enable and
disable the path, so that callers don't have to take care of remembering
the bandwidth values and handle this in the framework instead.
With this patch the users can call icc_disable() and icc_enable() to lower
their bandwidth request to zero and then restore it back to it's previous
value.
Suggested-by: Evan Green <evgreen@chromium.org>
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20200507120846.8354-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Diffstat (limited to 'drivers/interconnect/internal.h')
| -rw-r--r-- | drivers/interconnect/internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/interconnect/internal.h b/drivers/interconnect/internal.h index bf18cb7239df..f5f82a5c939e 100644 --- a/drivers/interconnect/internal.h +++ b/drivers/interconnect/internal.h @@ -14,6 +14,7 @@ * @req_node: entry in list of requests for the particular @node * @node: the interconnect node to which this constraint applies * @dev: reference to the device that sets the constraints + * @enabled: indicates whether the path with this request is enabled * @tag: path tag (optional) * @avg_bw: an integer describing the average bandwidth in kBps * @peak_bw: an integer describing the peak bandwidth in kBps @@ -22,6 +23,7 @@ struct icc_req { struct hlist_node req_node; struct icc_node *node; struct device *dev; + bool enabled; u32 tag; u32 avg_bw; u32 peak_bw; |