Hi all,
This patch series introduces a DT-based driver for the R-Car System
Controller.
This is a dependency for the enablement of DU and VSP on R-Car H3, as
the VSPs are located in a PM Domain.
Changes compared to v2:
- Add Reviewed-by,
- Rename driver from pm-rcar to rcar-sysc,
- Create PM Domains from hierarchy in C data instead of DT,
- Add support for an "always-on" domain, which is currently used on
R-Car H3 only (support can be added for other R-Car SoCs, preferably
after their migration to CPG/MSSR),
- Drop power area A3SH on R-Car H3, as it's no longer
documented in the datasheet, and touching it seems to crash SYSC,
- Hook up the CPG/MSSR Clock Domain attach/detach callbacks instead of
using our own copies,
- Initialize SYSCIER early, as SYSC needs the interrupt sources to be
enabled to control power,
- Mask all SYSC interrupt sources for the CPU,
- Drop check for CONFIG_PM_GENERIC_DOMAINS, which is now always
enabled on R-Car SoCs,
- Use early_initcall() instead of core_initcall(),
- Do not power up CPU power areas during initialization, as this is
handled later (directly or indirectly) by the SMP code,
- Extract bindings into its own series, "[PATCH v3 0/7] PM / Domains:
Add DT bindings for the R-Car System Controller".
Changes compared to v1 (more details in the individual patches):
- Moved pm-rcar from arch/arm/mach-shmobile/ to drivers/soc/renesas/,
- Added R-Car H3 (r8a7795) support, incl. support for devices part of
a SYSC PM domain and the CPG/MSSR clock domain,
- Use "renesas,<type>-sysc" instead of "renesas,sysc-<type>",
- Added fallback compatibility strings for R-Car Gen2 and Gen3.
- Changed one-line summary prefix to match current arm-soc practices,
- The L2 cache-controller patches have been extracted into a separate
series ("[PATCH v3 0/7] ARM/arm64: dts: renesas: Add/complete L2
cache-controller nodes"),
- Minor fixes.
Dependencies:
- renesas-devel-20160307-v4.5-rc7,
- "[PATCH 0/4] clk: renesas: PM Domain Cleanups and Preparation".
This has been tested on r8a7779/marzen, r8a7790/lager, r8a7791/koelsch,
and r8a7795/salvator-x.
Thanks for your comments!
Geert Uytterhoeven (11):
soc: renesas: Move pm-rcar to drivers/soc/renesas/rcar-sysc
soc: renesas: rcar-sysc: Improve rcar_sysc_power() debug info
soc: renesas: rcar-sysc: Add DT support for SYSC PM domains
soc: renesas: rcar-sysc: Make rcar_sysc_power_is_off() static
soc: renesas: rcar-sysc: Enable Clock Domain for r8a7795 I/O devices
soc: renesas: rcar-sysc: Add support for R-Car H1 power areas
soc: renesas: rcar-sysc: Add support for R-Car H2 power areas
soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas
soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas
soc: renesas: rcar-sysc: Add support for R-Car E2 power areas
soc: renesas: rcar-sysc: Add support for R-Car H3 power areas
arch/arm/mach-shmobile/Kconfig | 11 +-
arch/arm/mach-shmobile/Makefile | 1 -
arch/arm/mach-shmobile/pm-r8a7779.c | 3 +-
arch/arm/mach-shmobile/pm-rcar-gen2.c | 2 +-
arch/arm/mach-shmobile/pm-rcar.c | 164 ---------
arch/arm/mach-shmobile/smp-r8a7779.c | 2 +-
arch/arm/mach-shmobile/smp-r8a7790.c | 2 +-
drivers/soc/Makefile | 3 +-
drivers/soc/renesas/Makefile | 7 +
drivers/soc/renesas/r8a7779-sysc.c | 31 ++
drivers/soc/renesas/r8a7790-sysc.c | 45 +++
drivers/soc/renesas/r8a7791-sysc.c | 32 ++
drivers/soc/renesas/r8a7794-sysc.c | 32 ++
drivers/soc/renesas/r8a7795-sysc.c | 56 +++
drivers/soc/renesas/rcar-sysc.c | 394 +++++++++++++++++++++
drivers/soc/renesas/rcar-sysc.h | 60 ++++
.../linux/soc/renesas/rcar-sysc.h | 9 +-
17 files changed, 673 insertions(+), 181 deletions(-)
delete mode 100644 arch/arm/mach-shmobile/pm-rcar.c
create mode 100644 drivers/soc/renesas/Makefile
create mode 100644 drivers/soc/renesas/r8a7779-sysc.c
create mode 100644 drivers/soc/renesas/r8a7790-sysc.c
create mode 100644 drivers/soc/renesas/r8a7791-sysc.c
create mode 100644 drivers/soc/renesas/r8a7794-sysc.c
create mode 100644 drivers/soc/renesas/r8a7795-sysc.c
create mode 100644 drivers/soc/renesas/rcar-sysc.c
create mode 100644 drivers/soc/renesas/rcar-sysc.h
rename arch/arm/mach-shmobile/pm-rcar.h =>
include/linux/soc/renesas/rcar-sysc.h (60%)
--
1.9.1
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
