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clk: qcom: clk-rpmh: Fix overflow in BCM vote

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Valid frequencies may result in BCM votes that exceed the max HW value.
Set vote ceiling to BCM_TCS_CMD_VOTE_MASK to ensure the votes aren't
truncated, which can result in lower frequencies than desired.

Change-Id: I6d64815ee93c5c604ec0bea86eca00aca570bb9e
Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
This commit is contained in:
Mike Tipton 2021-02-01 15:59:57 -08:00 committed by Mike Tipton
parent cb5ed64bbf
commit d3dbbe0b59
1 changed files with 3 additions and 0 deletions
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3
drivers/clk/qcom/clk-rpmh.c
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@ -310,6 +310,9 @@ static int clk_rpmh_bcm_send_cmd(struct clk_rpmh *c, bool enable)
cmd_state = 0;
}
if (cmd_state > BCM_TCS_CMD_VOTE_MASK)
cmd_state = BCM_TCS_CMD_VOTE_MASK;
if (c->last_sent_aggr_state != cmd_state) {
cmd.addr = c->res_addr;
cmd.data = BCM_TCS_CMD(1, enable, 0, cmd_state);