Messages in this thread | | | From | peng.fan@nxp ... | Subject | [PATCH v2 00/14] ARM: imx7ulp: add cpufreq using cpufreq-dt | Date | Wed, 19 Feb 2020 15:59:43 +0800 |
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From: Peng Fan <peng.fan@nxp.com>
V2: Per Stephen's comments, I drop the cpuv2 clk code, and find another solution to change ARM clk Included get_intermediate/target_intermedate for cpufreq-dt Add i.MX7ULP intermedidate implementation. Per Fabio's comments, disallow HSRUN when LDO enabled. Add dt-bindings and pmc node
V1: https://patchwork.kernel.org/patch/11364609/
This patchset aims to use cpufreq-dt for i.MX7ULP to avoid plaform specific cpufreq driver. i.MX7ULP has some specicial requirements to change ARM core clock, see patch 11/13, "cpufreq: imx-cpufreq-dt: support i.MX7ULP"
Patch [1,2]/13: add pmc bindings and node. We need read pmc registers to get system info. Patch [3-6]/13: i.MX7ULP clk pfd/pll code change to make sure to get the expected pfd output clk. For RUN/HSRUN clock, we use API imx_clk_hw_cpu to make sure RUN or HSRUN could not shutdown clock output.
Patch [7-8]/13: Make sure we could run into HSRUN mode and not when LDO enabled.
Patch 9/13: let cpufred-dt could have get_intermediate/target_intermediate hooks to allow platform specific freq set.
Patch [10-12]/13: i.MX7ULP cpufreq support
Patch 13/13: Test dts, should not apply.
For rpmsg/vitio part, I have posted patchset, if you wanna rpmsg regulator: https://patchwork.kernel.org/cover/11390481/
Anson Huang (1): clk: imx: Fix division by zero warning on pfdv2
Peng Fan (13): dt-bindings: fsl: add i.MX7ULP PMC binding doc ARM: dts: imx7ulp: add pmc node clk: imx: pfdv2: switch to use determine_rate clk: imx: pfdv2: determine best parent rate clk: imx: pllv4: use prepare/unprepare clk: imx7ulp: make it easy to change ARM core clk ARM: imx: imx7ulp: support HSRUN mode ARM: imx: cpuidle-imx7ulp: Stop mode disallowed when HSRUN cpufreq: dt: Allow platform specific intermediate callbacks cpufreq: Add i.MX7ULP to cpufreq-dt-platdev blacklist cpufreq: imx-cpufreq-dt: support i.MX7ULP ARM: imx7ulp: enable cpufreq [Do not Apply] ARM: dts: imx7ulp: add cpu OPP points
.../bindings/arm/freescale/imx7ulp_pmc.yaml | 32 +++++++++ arch/arm/boot/dts/imx7ulp.dtsi | 38 ++++++++++ arch/arm/mach-imx/common.h | 1 + arch/arm/mach-imx/cpuidle-imx7ulp.c | 14 +++- arch/arm/mach-imx/mach-imx7ulp.c | 3 + arch/arm/mach-imx/pm-imx7ulp.c | 25 +++++++ drivers/clk/imx/clk-imx7ulp.c | 6 +- drivers/clk/imx/clk-pfdv2.c | 61 +++++++++++----- drivers/clk/imx/clk-pllv4.c | 12 ++-- drivers/cpufreq/cpufreq-dt-platdev.c | 1 + drivers/cpufreq/cpufreq-dt.c | 4 ++ drivers/cpufreq/cpufreq-dt.h | 4 ++ drivers/cpufreq/imx-cpufreq-dt.c | 83 +++++++++++++++++++++- include/dt-bindings/clock/imx7ulp-clock.h | 5 +- 14 files changed, 257 insertions(+), 32 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/freescale/imx7ulp_pmc.yaml
-- 2.16.4
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