in qcom/msm8974.c [553:579]
static void msm8974_icc_rpm_smd_send(struct device *dev, int rsc_type,
char *name, int id, u64 val)
{
int ret;
if (id == -1)
return;
/*
* Setting the bandwidth requests for some nodes fails and this same
* behavior occurs on the downstream MSM 3.4 kernel sources based on
* errors like this in that kernel:
*
* msm_rpm_get_error_from_ack(): RPM NACK Unsupported resource
* AXI: msm_bus_rpm_req(): RPM: Ack failed
* AXI: msm_bus_rpm_commit_arb(): RPM: Req fail: mas:32, bw:240000000
*
* Since there's no publicly available documentation for this hardware,
* and the bandwidth for some nodes in the path can be set properly,
* let's not return an error.
*/
ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE, rsc_type, id,
val);
if (ret)
dev_dbg(dev, "Cannot set bandwidth for node %s (%d): %d\n",
name, id, ret);
}