On Tue, 18 Aug 2020 at 09:44, Etienne Carriere <etienne.carri...@linaro.org> wrote: > > This change introduces a clock driver for SCMI agent devices. When > SCMI agent and SCMI clock drivers are enabled, SCMI agent binds a > clock device for each SCMI clock protocol devices enabled in the FDT. > > SCMI clock driver is embedded upon CONFIG_CLK_SCMI=y. If enabled, > CONFIG_SCMI_AGENT is also enabled. > > SCMI Clock protocol is defined in the SCMI specification [1]. > > Links: [1] > https://developer.arm.com/architectures/system-architectures/software-standards/scmi > Signed-off-by: Etienne Carriere <etienne.carri...@linaro.org> > Cc: Lukasz Majewski <lu...@denx.de> > Cc: Simon Glass <s...@chromium.org> > Cc: Peng Fan <peng....@nxp.com> > Cc: Sudeep Holla <sudeep.ho...@arm.com> > --- > > Changes in v2: > - CONFIG_CLK_SCMI depends on CONFIG_SCMI_FIRMWARE instead of > selecting CONFIG_SCMI_FIRMWARE. > - Add inline comment description for structures and moves them to > source file top. Add/fixup some functions inline description comments. > - Replace rc with ret as return value local variable label. > - Fix scmi_clk_get_rate() return value to propagate error number. > - Fix scmi_clk_set_rate() to request synchronous rate set operation: > drop flag SCMI_CLK_RATE_ASYNC_NORESP in the SCMI message payload. > - Fix scmi_clk_set_rate() return value to return clock effective rate > on success. > --- > drivers/clk/Kconfig | 8 ++ > drivers/clk/Makefile | 1 + > drivers/clk/clk_scmi.c | 186 ++++++++++++++++++++++++++++++++++++++++ > drivers/firmware/scmi.c | 3 + > 4 files changed, 198 insertions(+) > create mode 100644 drivers/clk/clk_scmi.c >
Reviewed-by: Simon Glass <s...@chromium.org>
