Hi Mike, Stephen,
This patch series adds support for the CLK_IS_CRITICAL flag to drivers
for module clocks on Renesas ARM SoCs. For now, this is used to prevent
disabling of the ARM GIC module clock, which would lead to a system
lock-up when accessing the GIC's registers.
1. The first patch migrates the Renesas CPG/MSSR driver from the
never merged CLK_ENABLE_HAND_OFF flag to the CLK_IS_CRITICAL flag.
Note that as the driver already handled critical clocks (i.e. it
ignored them :-), this is not a prerequisite for linking the GIC to
its module clock in DT.
2. The second patch makes sure the CLK_IS_CRITICAL flag is set for the
INTC-SYS clock on SoCs not (yet) using the Renesas CPG/MSSR driver.
Note that this is a hard dependency for describing the INTC-SYS
clock in DT on R-Mobile APE6 and R-Car Gen2.
I plan to queue these patches in my clk-renesas-for-v4.11 branch, if
you agree.
Thanks!
Geert Uytterhoeven (2):
clk: renesas: cpg-mssr: Migrate to CLK_IS_CRITICAL
clk: renesas: mstp: Make INTC-SYS a critical clock
drivers/clk/renesas/clk-mstp.c | 5 +++++
drivers/clk/renesas/renesas-cpg-mssr.c | 11 ++---------
2 files changed, 7 insertions(+), 9 deletions(-)
--
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
