diff options
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpm.c | 27 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpm.h | 4 |
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index 8c1bfd65d774..1d3af4e9ead8 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -414,6 +414,33 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) qp->bus_clk_rate[QCOM_SMD_RPM_SLEEP_STATE] = sleep_rate; } + /* Handle the node-specific clock */ + if (!src_qn->bus_clk_desc) + return 0; + + active_rate = qcom_icc_calc_rate(qp, src_qn, QCOM_SMD_RPM_ACTIVE_STATE); + sleep_rate = qcom_icc_calc_rate(qp, src_qn, QCOM_SMD_RPM_SLEEP_STATE); + + if (active_rate != src_qn->bus_clk_rate[QCOM_SMD_RPM_ACTIVE_STATE]) { + ret = qcom_icc_rpm_set_bus_rate(src_qn->bus_clk_desc, QCOM_SMD_RPM_ACTIVE_STATE, + active_rate); + if (ret) + return ret; + + /* Cache the rate after we've successfully committed it to RPM */ + src_qn->bus_clk_rate[QCOM_SMD_RPM_ACTIVE_STATE] = active_rate; + } + + if (sleep_rate != src_qn->bus_clk_rate[QCOM_SMD_RPM_SLEEP_STATE]) { + ret = qcom_icc_rpm_set_bus_rate(src_qn->bus_clk_desc, QCOM_SMD_RPM_SLEEP_STATE, + sleep_rate); + if (ret) + return ret; + + /* Cache the rate after we've successfully committed it to RPM */ + src_qn->bus_clk_rate[QCOM_SMD_RPM_SLEEP_STATE] = sleep_rate; + } + return 0; } diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h index 5e7d6a4fd2f3..725e0d4840e4 100644 --- a/drivers/interconnect/qcom/icc-rpm.h +++ b/drivers/interconnect/qcom/icc-rpm.h @@ -97,11 +97,13 @@ struct qcom_icc_qos { * @num_links: the total number of @links * @channels: number of channels at this node (e.g. DDR channels) * @buswidth: width of the interconnect between a node and the bus (bytes) + * @bus_clk_desc: a pointer to a rpm_clk_resource description of bus clocks * @sum_avg: current sum aggregate value of all avg bw requests * @max_peak: current max aggregate value of all peak bw requests * @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 + * @bus_clk_rate: a pointer to an array containing bus clock rates in Hz */ struct qcom_icc_node { unsigned char *name; @@ -110,11 +112,13 @@ struct qcom_icc_node { u16 num_links; u16 channels; u16 buswidth; + const struct rpm_clk_resource *bus_clk_desc; u64 sum_avg[QCOM_SMD_RPM_STATE_NUM]; u64 max_peak[QCOM_SMD_RPM_STATE_NUM]; int mas_rpm_id; int slv_rpm_id; struct qcom_icc_qos qos; + u32 bus_clk_rate[QCOM_SMD_RPM_STATE_NUM]; }; struct qcom_icc_desc { |