From: Georgi Djakov <georgi.djakov@linaro.org>
To: linux-pm@vger.kernel.org, bjorn.andersson@linaro.org
Cc: devicetree@vger.kernel.org, robh+dt@kernel.org,
sibis@codeaurora.org, mka@chromium.org, dianders@chromium.org,
georgi.djakov@linaro.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 3/7] interconnect: qcom: Implement xlate_extended() to parse tags
Date: Thu, 3 Sep 2020 16:31:30 +0300 [thread overview]
Message-ID: <20200903133134.17201-4-georgi.djakov@linaro.org> (raw)
In-Reply-To: <20200903133134.17201-1-georgi.djakov@linaro.org>
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>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
---
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);
next prev parent reply other threads:[~2020-09-03 15:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 13:31 [PATCH v3 0/7] interconnect: Introduce xlate_extended() Georgi Djakov
2020-09-03 13:31 ` [PATCH v3 1/7] interconnect: Introduce xlate_extended() callback Georgi Djakov
2020-09-03 13:31 ` [PATCH v3 2/7] dt-bindings: interconnect: Document the support of optional path tag Georgi Djakov
2020-09-03 13:31 ` Georgi Djakov [this message]
2020-09-03 13:31 ` [PATCH v3 4/7] interconnect: qcom: sdm845: Replace xlate with xlate_extended Georgi Djakov
2020-09-03 13:31 ` [PATCH v3 5/7] arm64: dts: qcom: sdm845: Increase the number of interconnect cells Georgi Djakov
2020-09-03 13:31 ` [PATCH v3 6/7] interconnect: qcom: sc7180: Replace xlate with xlate_extended Georgi Djakov
2020-09-03 13:31 ` [PATCH v3 7/7] arm64: dts: qcom: sc7180: Increase the number of interconnect cells Georgi Djakov
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