Messages in this thread | | | Date | Mon, 11 Sep 2017 15:28:06 +0800 | From | Dong Aisheng <> | Subject | Re: [PATCH 0/7] PM / OPP: per OPP node clock support and imx7ulp cpufreq driver |
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Hi Viresh and Rafael,
On Thu, Aug 24, 2017 at 12:10:03AM +0800, Dong Aisheng wrote: > This patch series does three things: > 1) Add platform specific set_clk function > 2) Add per OPP node clock support > 3) Add imx7ulp cpufreq driver support > > 3 is depends on 1 & 2. > > MX7ULP supports HSRUN mode (528 Mhz), RUN mode (413 Mhz) and VLPR mode > (restricted to FIRC clock, usually 48 Mhz). This patch adds the cpufreq > driver support for HSRUN and RUN mode. > When in different modes, the A7 core is using different clocks: > RUN: clk run_divcore > HSRUN: clk hsrun_divcore > > Thus, this driver replies on the newly added features in OPP core framework > patch 1~6: e.g. > "PM / OPP: use OPP node clock to set CPU frequency" > > And since IMX7ULP CPU clock setting is different from the generic > set OPP clock, we also implemented a private set_clk function. > > Dong Aisheng (7): > PM / OPP: Add platform specific set_clk function > dt-bindings: PM / OPP: add clocks per OPP node support > PM / OPP: rename opp_table->clk to opp_table->cur_clk > PM / OPP: use OPP node clock to set CPU frequency > PM / OPP: Add dev_pm_opp_get_cur_clk() > cpufreq: make cpufreq_generic_init transition_latency default to > CPUFREQ_ETERNAL > cpufreq: add imx7ulp cpufreq driver >
Do you have any comments about this series?
Regards Dong Aisheng
> Documentation/devicetree/bindings/opp/opp.txt | 52 ++++++ > drivers/base/power/opp/core.c | 155 ++++++++++++++--- > drivers/base/power/opp/of.c | 8 + > drivers/base/power/opp/opp.h | 11 +- > drivers/cpufreq/Kconfig.arm | 8 + > drivers/cpufreq/Makefile | 1 + > drivers/cpufreq/cpufreq.c | 2 + > drivers/cpufreq/imx7ulp-cpufreq.c | 234 ++++++++++++++++++++++++++ > include/linux/pm_opp.h | 16 ++ > 9 files changed, 466 insertions(+), 21 deletions(-) > create mode 100644 drivers/cpufreq/imx7ulp-cpufreq.c > > -- > 2.7.4 >
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