Sumit Gupta 9c9312fccd firmware: tegra: Add suspend hook and reset BPMP IPC early on resume ... [ Upstream commit ea608a01d4 ] Add suspend hook and a 'suspended' field in the 'struct tegra_bpmp' to mark if BPMP is suspended. Also, add a 'flags' field in the 'struct tegra_bpmp_message' whose 'TEGRA_BPMP_MESSAGE_RESET' bit can be set from the Tegra MC driver to signal that the reset of BPMP IPC channels is required before sending MRQ to the BPMP FW. Together both the fields allow us to handle any requests that might be sent too soon as they can cause hang during system resume. One case where we see BPMP requests being sent before the BPMP driver has resumed is the memory bandwidth requests which are triggered by onlining the CPUs during system resume. The CPUs are onlined before the BPMP has resumed and we need to reset the BPMP IPC channels to handle these requests. The additional check for 'flags' is done to avoid any un-intended BPMP IPC reset if the tegra_bpmp_transfer*() API gets called during suspend sequence after the BPMP driver is suspended. Fixes: f41e1442ac ("cpufreq: tegra194: add OPP support and set bandwidth") Co-developed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-11-20 11:59:16 +01:00
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ahb.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
bpmp-abi.h	firmware: tegra: Update BPMP ABI	2022-11-17 23:34:17 +01:00
bpmp.h	firmware: tegra: Add suspend hook and reset BPMP IPC early on resume	2023-11-20 11:59:16 +01:00
common.h	soc/tegra: Add devm_tegra_core_dev_init_opp_table_common()	2021-12-16 14:03:38 +01:00
cpuidle.h	cpuidle: Refactor and move out NVIDIA Tegra20 driver into drivers/cpuidle	2020-03-13 11:31:58 +01:00
flowctrl.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 399	2019-06-05 17:37:12 +02:00
fuse.h	soc/tegra: fuse: Add support for Tegra264	2023-05-16 10:58:50 +02:00
irq.h	soc/tegra: irq: Add stubs needed for compile testing	2021-10-04 21:27:21 +02:00
ivc.h	firmware: tegra: Changes for v6.2-rc1	2022-11-22 22:14:39 +01:00
mc.h	memory: tegra: Add dummy implementation on Tegra194	2023-07-10 12:04:56 +02:00
pm.h	soc/tegra: pm: Make stubs usable for compile testing	2021-10-04 21:27:40 +02:00
pmc.h	soc/tegra: pmc: Add I/O pad table for Tegra234	2022-11-10 02:21:12 +01:00
tegra-cbb.h	soc/tegra: cbb: Add CBB 1.0 driver for Tegra194	2022-09-15 12:41:36 +02:00