Sumit Gupta e3e711ef8a 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 11:57:06 +01:00
..
amlogic	perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver	2022-11-21 18:28:45 +00:00
arc	clocksource/drivers/arc_timer: Eliminate redefined macro error	2021-10-16 22:15:01 +02:00
at91	ARM: at91: pm: avoid soft resetting AC DLL	2022-11-01 12:25:19 +02:00
bcm2835	firmware: raspberrypi: Fix type assignment	2023-01-10 13:44:04 -08:00
canaan	clk: Add RISC-V Canaan Kendryte K210 clock driver	2021-02-22 17:51:04 -08:00
fsl	soc: fsl: cpm1: Add support for QMC	2023-03-05 23:37:03 +00:00
imx	clocksource/drivers/imx-gpt: Fold <soc/imx/timer.h> into its only user	2023-06-23 09:33:43 +02:00
mediatek	memory: mtk-smi: Add enable IOMMU SMC command for MM master	2022-08-30 20:54:05 +03:00
microchip	clk: microchip: mpfs: add reset controller	2022-09-14 10:55:17 +03:00
mscc	net: dsa: felix: make vsc9959_tas_guard_bands_update() visible to ocelot->ops	2023-07-06 19:10:22 -07:00
qcom	soc: qcom: Make the Qualcomm UFS/SDCC ICE a dedicated driver	2023-04-07 12:08:39 -07:00
rockchip	soc: rockchip: power-domain: Manage resource conflicts with firmware	2022-05-09 03:36:52 +09:00
sa1100	…
sifive	soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.	2022-10-13 11:06:51 -07:00
starfive	clk: starfive: Avoid casting iomem pointers	2023-04-13 15:45:46 -07:00
tegra	firmware: tegra: Add suspend hook and reset BPMP IPC early on resume	2023-11-20 11:57:06 +01:00