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msm: ipa: vote for device side through mhi for tethering use cases

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Specify MHI_VOTE_DEVICE flag when calling mhi-driver API:
mhi_device_get_sync to make sure device side PCIE won't
get to power collapse.

Change-Id: Ia254d3bdbc191f80af05224df4b272921aba2d10
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>
This commit is contained in:
Michael Adisumarta 2019-12-13 12:30:21 -08:00 • committed by Gerrit - the friendly Code Review server
commit a1667e6019
1 changed files with 4 additions and 2 deletions
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6
drivers/platform/msm/ipa/ipa_v3/ipa_mpm.c
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@ -1425,7 +1425,8 @@ static int ipa_mpm_vote_unvote_pcie_clk(enum ipa_mpm_clk_vote_type vote,
if (vote == CLK_ON) {
result = mhi_device_get_sync(
ipa_mpm_ctx->md[probe_id].mhi_dev, MHI_VOTE_BUS);
ipa_mpm_ctx->md[probe_id].mhi_dev,
MHI_VOTE_BUS | MHI_VOTE_DEVICE);
if (result) {
IPA_MPM_ERR("mhi_sync_get failed for probe_id %d\n",
result, probe_id);
@ -1446,7 +1447,8 @@ static int ipa_mpm_vote_unvote_pcie_clk(enum ipa_mpm_clk_vote_type vote,
*is_acted = true;
return 0;
}
mhi_device_put(ipa_mpm_ctx->md[probe_id].mhi_dev, MHI_VOTE_BUS);
mhi_device_put(ipa_mpm_ctx->md[probe_id].mhi_dev,
MHI_VOTE_BUS | MHI_VOTE_DEVICE);
IPA_MPM_DBG("probe_id %d PCIE clock off\n", probe_id);
atomic_dec(&ipa_mpm_ctx->md[probe_id].clk_cnt.pcie_clk_cnt);
atomic_dec(&ipa_mpm_ctx->pcie_clk_total_cnt);