From 29f66b625281a3026653fd33b710771a4ae394d2 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 17 May 2022 12:09:49 -0700 Subject: [PATCH] clk: qcom: rpmh: Add note about sleep/wake state for BCMs The sleep/wake state doesn't need to be set here because of specific RPMh behavior that carries over the active state when sleep/wake state hasn't been modified. Add a note to the code so we aren't tempted to set the sleep/wake states. Cc: Alex Elder Cc: Taniya Das Signed-off-by: Stephen Boyd Reviewed-by: Alex Elder Reviewed-by: Bjorn Andersson Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220517190949.2922197-1-swboyd@chromium.org --- drivers/clk/qcom/clk-rpmh.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c index aed9079823449..c07cab6905cbf 100644 --- a/drivers/clk/qcom/clk-rpmh.c +++ b/drivers/clk/qcom/clk-rpmh.c @@ -274,6 +274,11 @@ static int clk_rpmh_bcm_send_cmd(struct clk_rpmh *c, bool enable) cmd.addr = c->res_addr; cmd.data = BCM_TCS_CMD(1, enable, 0, cmd_state); + /* + * Send only an active only state request. RPMh continues to + * use the active state when we're in sleep/wake state as long + * as the sleep/wake state has never been set. + */ ret = clk_rpmh_send(c, RPMH_ACTIVE_ONLY_STATE, &cmd, enable); if (ret) { dev_err(c->dev, "set active state of %s failed: (%d)\n", -- 2.30.2