[PATCH v2 3/7] interconnect: qcom: Implement xlate_extended() to parse tags
From: Georgi Djakov <hidden>
Date: 2020-08-06 17:51:35
Also in:
linux-pm, lkml
Subsystem:
arm/qualcomm mailing list, interconnect api, the rest · Maintainers:
Georgi Djakov, Linus Torvalds
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 <redacted> Reviewed-by: Sibi Sankar <redacted> Signed-off-by: Georgi Djakov <redacted> --- drivers/interconnect/qcom/icc-rpmh.c | 27 +++++++++++++++++++++++++++ drivers/interconnect/qcom/icc-rpmh.h | 1 + 2 files changed, 28 insertions(+)
diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c
index 3ac5182c9ab2..7e538155e486 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 903d25e61984..1dac39bc255d 100644
--- a/drivers/interconnect/qcom/icc-rpmh.h
+++ b/drivers/interconnect/qcom/icc-rpmh.h@@ -143,6 +143,7 @@ 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);