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| author |   Georgi Djakov <georgi.djakov@linaro.org> | 2020-09-03 16:31:30 +0300 |
|---|---|---|
| committer | Georgi Djakov <georgi.djakov@linaro.org> | 2020-09-08 16:29:00 +0300 |
| commit | 6caa3070fd5955d0e647e8cf3b7a33c73a27e32f (patch) | |
| tree | 90daa762c9807e6aa4d8c0df2e697ec863ce14b1 /drivers/interconnect | |
| parent | dt-bindings: interconnect: Document the support of optional path tag (diff) | |
| download | wireguard-linux-6caa3070fd5955d0e647e8cf3b7a33c73a27e32f.tar.xz wireguard-linux-6caa3070fd5955d0e647e8cf3b7a33c73a27e32f.zip | |
interconnect: qcom: Implement xlate_extended() to parse tags
Implement a function to parse the arguments of the "interconnects" DT
property and populate the interconnect path tags if this information
is available.
Tested-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200903133134.17201-4-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Diffstat (limited to 'drivers/interconnect')
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpmh.c | 27 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpmh.h | 1 |
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c index 008846c17bec..cf10a4b9611b 100644 --- a/drivers/interconnect/qcom/icc-rpmh.c +++ b/drivers/interconnect/qcom/icc-rpmh.c @@ -6,6 +6,8 @@ #include <linux/interconnect.h> #include <linux/interconnect-provider.h> #include <linux/module.h> +#include <linux/of.h> +#include <linux/slab.h> #include "bcm-voter.h" #include "icc-rpmh.h" @@ -92,6 +94,31 @@ int qcom_icc_set(struct icc_node *src, struct icc_node *dst) } EXPORT_SYMBOL_GPL(qcom_icc_set); +struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data) +{ + struct icc_node_data *ndata; + struct icc_node *node; + + node = of_icc_xlate_onecell(spec, data); + if (IS_ERR(node)) + return ERR_CAST(node); + + ndata = kzalloc(sizeof(*ndata), GFP_KERNEL); + if (!ndata) + return ERR_PTR(-ENOMEM); + + ndata->node = node; + + if (spec->args_count == 2) + ndata->tag = spec->args[1]; + + if (spec->args_count > 2) + pr_warn("%pOF: Too many arguments, path tag is not parsed\n", spec->np); + + return ndata; +} +EXPORT_SYMBOL_GPL(qcom_icc_xlate_extended); + /** * qcom_icc_bcm_init - populates bcm aux data and connect qnodes * @bcm: bcm to be initialized diff --git a/drivers/interconnect/qcom/icc-rpmh.h b/drivers/interconnect/qcom/icc-rpmh.h index 10b1890345b1..e5f61ab989e7 100644 --- a/drivers/interconnect/qcom/icc-rpmh.h +++ b/drivers/interconnect/qcom/icc-rpmh.h @@ -131,6 +131,7 @@ struct qcom_icc_desc { int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, u32 peak_bw, u32 *agg_avg, u32 *agg_peak); int qcom_icc_set(struct icc_node *src, struct icc_node *dst); +struct icc_node_data *qcom_icc_xlate_extended(struct of_phandle_args *spec, void *data); int qcom_icc_bcm_init(struct qcom_icc_bcm *bcm, struct device *dev); void qcom_icc_pre_aggregate(struct icc_node *node); |