Merge branch 'icc-rpm' into icc-next

This patch set is to address two clock rate setting issues.

The first patch is to fix a potential cached clock rate mismatching
issue, the issue can lead to the clock rate is missed to be set. Note,
since this potential issue requires specific time window and certain
condition (consumers need to request the same bandwidth) to produce,
the patch is based on analysis but not a real trace log.

The second patch is an extension to cache clock rates for active and
sleep clocks separately, with this change it gives us possibility to set
active and sleep clock with different clock rates.

* icc-rpm
interconnect: qcom: icc-rpm: Fix for cached clock rate
interconnect: qcom: icc-rpm: Cache every clock rate

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Georgi Djakov <[e-mail]>

drivers/interconnect/qcom/icc-rpm.c

···
 	do_div(rate, qn->buswidth);
 	rate = min_t(u64, rate, LONG_MAX);
 
-	if (qn->rate == rate)
-		return 0;
-
 	for (i = 0; i < qp->num_clks; i++) {
+		if (qp->bus_clk_rate[i] == rate)
+			continue;
+
 		ret = clk_set_rate(qp->bus_clks[i].clk, rate);
 		if (ret) {
 			pr_err("%s clk_set_rate error: %d\n",
 			       qp->bus_clks[i].id, ret);
 			return ret;
 		}
+		qp->bus_clk_rate[i] = rate;
 	}
-
-	qn->rate = rate;
 
 	return 0;
 }
···
 
 	qp = devm_kzalloc(dev, struct_size(qp, bus_clks, cd_num), GFP_KERNEL);
 	if (!qp)
+		return -ENOMEM;
+
+	qp->bus_clk_rate = devm_kcalloc(dev, cd_num, sizeof(*qp->bus_clk_rate),
+					GFP_KERNEL);
+	if (!qp->bus_clk_rate)
 		return -ENOMEM;
 
 	data = devm_kzalloc(dev, struct_size(data, nodes, num_nodes),

drivers/interconnect/qcom/icc-rpm.h

···
  * @type: the ICC provider type
  * @qos_offset: offset to QoS registers
  * @regmap: regmap for QoS registers read/write access
+ * @bus_clk_rate: bus clock rate in Hz
  */
 struct qcom_icc_provider {
 	struct icc_provider provider;
···
 	enum qcom_icc_type type;
 	struct regmap *regmap;
 	unsigned int qos_offset;
+	u64 *bus_clk_rate;
 	struct clk_bulk_data bus_clks[];
 };
 
···
  * @mas_rpm_id:	RPM id for devices that are bus masters
  * @slv_rpm_id:	RPM id for devices that are bus slaves
  * @qos: NoC QoS setting parameters
- * @rate: current bus clock rate in Hz
  */
 struct qcom_icc_node {
 	unsigned char *name;
···
 	int mas_rpm_id;
 	int slv_rpm_id;
 	struct qcom_icc_qos qos;
-	u64 rate;
 };
 
 struct qcom_icc_desc {