Hi David, On 05/26/2018 06:38 AM, David Collins wrote: > >> + [1] = &sdm845_mx, >> + [2] = &sdm845_mx_ao, >> + [3] = &sdm845_cx, >> + [4] = &sdm845_cx_ao, >> + [5] = &sdm845_lmx, >> + [6] = &sdm845_lcx, >> + [7] = &sdm845_gfx, >> + [8] = &sdm845_mss, >> +}; >> + >> +static const struct rpmhpd_desc sdm845_desc = { >> + .rpmhpds = sdm845_rpmhpds, >> + .num_pds = ARRAY_SIZE(sdm845_rpmhpds), >> +}; >> + >> +static const struct of_device_id rpmhpd_match_table[] = { >> + { .compatible = "qcom,sdm845-rpmhpd", .data = &sdm845_desc }, >> + { } >> +}; >> +MODULE_DEVICE_TABLE(of, rpmhpd_match_table); >> + >> +static int rpmhpd_send_corner(struct rpmhpd *pd, int state, unsigned int corner) >> +{ >> + struct tcs_cmd cmd = { >> + .addr = pd->addr, >> + .data = corner, >> + }; >> + >> + return rpmh_write(pd->dev, state, &cmd, 1); > This can be optimized by calling rpmh_write_async() whenever the corner > being sent is smaller than the last value sent. That way, no time is > wasted waiting for an ACK when decreasing voltage. Would you mind adding > the necessary check and previous request caching for this? is it safe to assume all sleep votes can be sent as async always? and only active votes could be sync/async depending on the last value sent? regards, Rajendra -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html