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(-)
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-restore-irq-v3-0-d06963974ad4@bootlin.com
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-restore-irq-v2-0-a487fa3ff221@bootlin.com
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-restore-irq-v1-0-34d4339d247a@bootlin.com
---
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>
On Feb 04, 2026 at 16:03:37 +0100, Thomas Richard (TI) wrote: > 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-restore-irq-v3-0-d06963974ad4@bootlin.com > > 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-restore-irq-v2-0-a487fa3ff221@bootlin.com > > 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-restore-irq-v1-0-34d4339d247a@bootlin.com > > --- > 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 The series looks good to me, just checking if maintainer prefers the 2/4 PATCH on IRQ restore to be split up. IMO similar to how you've split up the clk restore support and then actually restored clk context in another patch, you can do similar split up for IRQ. No strong opinions from my side though. Reviewed-by: Dhruva Gole <d-gole@ti.com> > > 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> > > -- Best regards, Dhruva Gole Texas Instruments Incorporated
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