| From: |
| "Thomas Richard (TI)" <thomas.richard-AT-bootlin.com> |
| To: |
| Nishanth Menon <nm-AT-ti.com>, Tero Kristo <kristo-AT-kernel.org>, Santosh Shilimkar <ssantosh-AT-kernel.org>, Michael Turquette <mturquette-AT-baylibre.com>, Stephen Boyd <sboyd-AT-kernel.org> |
| Subject: |
| [PATCH v4 0/4] firmware: ti_sci: Introduce BOARDCFG_MANAGED mode for Jacinto family |
| Date: |
| Wed, 04 Feb 2026 16:03:37 +0100 |
| Message-ID: |
| <20260204-ti-sci-jacinto-s2r-restore-irq-v4-0-67820af39eac@bootlin.com> |
| Cc: |
| Gregory CLEMENT <gregory.clement-AT-bootlin.com>, richard.genoud-AT-bootlin.com, Udit Kumar <u-kumar1-AT-ti.com>, Prasanth Mantena <p-mantena-AT-ti.com>, Abhash Kumar <a-kumar2-AT-ti.com>, Thomas Petazzoni <thomas.petazzoni-AT-bootlin.com>, linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, linux-clk-AT-vger.kernel.org, "Thomas Richard (TI)" <thomas.richard-AT-bootlin.com> |
| Archive-link: |
| Article |
The fourth iteration of this series adds support for two new firmware
capabilities:
- MSG_FLAG_CAPS_LPM_IRQ_CONTEXT_LOST: Indicates that DM-Firmware is not
able to restore IRQ context during resume after suspend-to-ram.
- MSG_FLAG_CAPS_LPM_CLK_CONTEXT_LOST: Indicates that DM-Firmware is not
able to restore clock context (rate and parent configuration) during
resume after suspend-to-ram.
Now, ti_sci driver determines whether to restore IRQs based on the
MSG_FLAG_CAPS_LPM_IRQ_CONTEXT_LOST capability rather than the
BOARDCFG_MANAGED mode. The same logic applies to the clock context.
Both J784s4 and J7200 platforms support these new capabilities. A
corresponding pull request has been submitted on DM-Firmware side to
define and enable these capabilities.
The value for the BOARDCFG_MANAGED mode has also been fixed.
Public documentation for BOARDCFG_MANAGED mode and these new capabilities
is currently unavailable. I will update the series with relevant
documentation references as soon as they become available.
I rebased the series on linux-next next-20260202.
Best Regards,
Thomas
Signed-off-by: Thomas Richard (TI) <thomas.richard@bootlin.com>
---
Changes in v4:
- rebase on linux-next next-20260202.
- fix BOARDCFG_MANAGED value.
- add MSG_FLAG_CAPS_LPM_IRQ_CONTEXT_LOST firmware capability.
- add MSG_FLAG_CAPS_LPM_CLK_CONTEXT_LOST firmware capability.
- Link to v3: https://lore.kernel.org/r/20251205-ti-sci-jacinto-s2r-res...
Changes in v3:
- rebased on linux-next
- sci-clk: context_restore() operation restores also rate.
- Link to v2: https://lore.kernel.org/r/20251127-ti-sci-jacinto-s2r-res...
Changes in v2:
- ti_sci: use hlist to store IRQs.
- sci-clk: add context_restore operation
- ti_sci: restore clock parents during resume
- Link to v1: https://lore.kernel.org/r/20251017-ti-sci-jacinto-s2r-res...
---
Thomas Richard (TI) (4):
firmware: ti_sci: add BOARDCFG_MANAGED mode support
firmware: ti_sci: add support for restoring IRQs during resume
clk: keystone: sci-clk: add restore_context() operation
firmware: ti_sci: add support for restoring clock context during resume
drivers/clk/keystone/sci-clk.c | 42 +++++++++--
drivers/firmware/ti_sci.c | 164 ++++++++++++++++++++++++++++++++++++++---
drivers/firmware/ti_sci.h | 6 ++
3 files changed, 192 insertions(+), 20 deletions(-)
---
base-commit: c6fb8985458d675f32a22788f30afcba754b6d78
change-id: 20251010-ti-sci-jacinto-s2r-restore-irq-428e008fd10c
Best regards,
--
Thomas Richard (TI) <thomas.richard@bootlin.com>
