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Mon, 09 Oct 2023 03:06:49 -0700 (PDT) X-Spam-Level: ** X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1779272003737044202 X-GMAIL-MSGID: 1779272003737044202 From: Thierry Reding Set the 'TEGRA_BPMP_MESSAGE_RESET' bit in newly added 'flags' field of 'struct tegra_bpmp_message' to request for the reset of BPMP IPC channels. This is used along with the 'suspended' check in BPMP driver for handling early bandwidth requests due to the hotplug of CPU's during system resume before the driver gets resumed. Fixes: f41e1442ac5b ("cpufreq: tegra194: add OPP support and set bandwidth") Signed-off-by: Thierry Reding Co-developed-by: Sumit Gupta Signed-off-by: Sumit Gupta Acked-by: Thierry Reding Acked-by: Krzysztof Kozlowski --- drivers/memory/tegra/tegra234.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/memory/tegra/tegra234.c b/drivers/memory/tegra/tegra234.c index 9e5b5dbd9c8d..2845041f32d6 100644 --- a/drivers/memory/tegra/tegra234.c +++ b/drivers/memory/tegra/tegra234.c @@ -986,6 +986,10 @@ static int tegra234_mc_icc_set(struct icc_node *src, struct icc_node *dst) msg.rx.data = &bwmgr_resp; msg.rx.size = sizeof(bwmgr_resp); + if (pclient->bpmp_id >= TEGRA_ICC_BPMP_CPU_CLUSTER0 && + pclient->bpmp_id <= TEGRA_ICC_BPMP_CPU_CLUSTER2) + msg.flags = TEGRA_BPMP_MESSAGE_RESET; + ret = tegra_bpmp_transfer(mc->bpmp, &msg); if (ret < 0) { dev_err(mc->dev, "BPMP transfer failed: %d\n", ret);