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authorStephen Boyd <swboyd@chromium.org>2022-04-27 03:32:26 +0200
committerGeorgi Djakov <djakov@kernel.org>2022-05-03 21:24:21 +0200
commit20ce30fb4750f2ffc130cdcb26232b1dd87cd0a5 (patch)
treee0ec3e49e4aa72664f5f22b4307d90802e62621b /drivers/interconnect
parentinterconnect: qcom: sdx55: Drop IP0 interconnects (diff)
downloadlinux-20ce30fb4750f2ffc130cdcb26232b1dd87cd0a5.tar.xz
linux-20ce30fb4750f2ffc130cdcb26232b1dd87cd0a5.zip
interconnect: Restore sync state by ignoring ipa-virt in provider count
Ignore compatible strings for the IPA virt drivers that were removed in commits 2fb251c26560 ("interconnect: qcom: sdx55: Drop IP0 interconnects") and 2f3724930eb4 ("interconnect: qcom: sc7180: Drop IP0 interconnects") so that the sync state logic can kick in again. Otherwise all the interconnects in the system will stay pegged at max speeds because 'providers_count' is always going to be one larger than the number of drivers that will ever probe on sc7180 or sdx55. This fixes suspend on sc7180 and sdx55 devices when you don't have a devicetree patch to remove the ipa-virt compatible node. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Doug Anderson <dianders@chromium.org> Cc: Alex Elder <elder@linaro.org> Cc: Taniya Das <quic_tdas@quicinc.com> Cc: Mike Tipton <quic_mdtipton@quicinc.com> Fixes: 2fb251c26560 ("interconnect: qcom: sdx55: Drop IP0 interconnects") Fixes: 2f3724930eb4 ("interconnect: qcom: sc7180: Drop IP0 interconnects") Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Alex Elder <elder@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20220427013226.341209-1-swboyd@chromium.org Signed-off-by: Georgi Djakov <djakov@kernel.org>
Diffstat (limited to 'drivers/interconnect')
-rw-r--r--drivers/interconnect/core.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index 9050ca1f4285..808f6e7a8048 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -1087,9 +1087,15 @@ static int of_count_icc_providers(struct device_node *np)
{
struct device_node *child;
int count = 0;
+ const struct of_device_id __maybe_unused ignore_list[] = {
+ { .compatible = "qcom,sc7180-ipa-virt" },
+ { .compatible = "qcom,sdx55-ipa-virt" },
+ {}
+ };
for_each_available_child_of_node(np, child) {
- if (of_property_read_bool(child, "#interconnect-cells"))
+ if (of_property_read_bool(child, "#interconnect-cells") &&
+ likely(!of_match_node(ignore_list, child)))
count++;
count += of_count_icc_providers(child);
}