| Message ID | 1548703299-15806-5-git-send-email-l.luba@partner.samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [1/8] clk: samsung: add needed IDs for DMC clocks in Exynos5420 | expand |
On Mon, 28 Jan 2019 at 20:21, Lukasz Luba <l.luba@partner.samsung.com> wrote: > > The patch adds description for DT binding for a new Exynos5 Dynamic Memory > Controller device. > It also contains needed MAINTAINERS file updates. > > CC: MyungJoo Ham <myungjoo.ham@samsung.com> > CC: Kyungmin Park <kyungmin.park@samsung.com> > CC: Chanwoo Choi <cw00.choi@samsung.com> > CC: Rob Herring <robh+dt@kernel.org> > CC: Mark Rutland <mark.rutland@arm.com> > CC: Kukjin Kim <kgene@kernel.org> > CC: Krzysztof Kozlowski <krzk@kernel.org> > CC: linux-pm@vger.kernel.org > CC: linux-samsung-soc@vger.kernel.org > CC: devicetree@vger.kernel.org > CC: linux-arm-kernel@lists.infradead.org > CC: linux-kernel@vger.kernel.org > Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> > --- > .../devicetree/bindings/devfreq/exynos5-dmc.txt | 108 +++++++++++++++++++++ > MAINTAINERS | 7 ++ > 2 files changed, 115 insertions(+) > create mode 100644 Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > > diff --git a/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > new file mode 100644 > index 0000000..914bd85 > --- /dev/null > +++ b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > @@ -0,0 +1,108 @@ > +* Exynos5 frequency and voltage scaling for Dynamic Memory Controller device > + > +The Samsung Exynos5 SoC has DMC (Dynamic Memory Controller) to which the DRAM > +memory chips are connected. The driver is to monitor the controller in runtime > +and switch frequency and voltage. To monitor the usage of the controller in > +runtime, the driver uses the PPMU (Platform Performance Monitoring Unit), which > +is able to measure the current load of the memory. > +When 'userspace' governor is used for the driver, an application is able to > +switch the DMC frequency. > + > +Required properties for DMC device for Exynos5422: > +- compatible: Should be "samsung,exynos5422-bus". > +- clock-names : the name of clock used by the bus, "bus". > +- clocks : phandles for clock specified in "clock-names" property. > +- devfreq-events : phandles for PPMU devices connected to this DMC. > + > +The example definition of a DMC and PPMU devices declared in DT is shown below: > + > + ppmu_dmc0_0: ppmu_dmc0_0@10d00000 { > + compatible = "samsung,exynos-ppmu"; > + reg = <0x10d00000 0x2000>; > + clocks = <&clock CLK_PCLK_PPMU_DREX0_0>; > + clock-names = "ppmu"; > + status = "okay"; > + events { > + ppmu_event_dmc0_0: ppmu-event3-dmc0_0 { > + event-name = "ppmu-event3-dmc0_0"; > + }; > + }; > + }; > + > + > + ppmu_dmc0_1: ppmu_dmc0_1@10d10000 { > + compatible = "samsung,exynos-ppmu"; > + reg = <0x10d10000 0x2000>; > + clocks = <&clock CLK_PCLK_PPMU_DREX0_1>; > + clock-names = "ppmu"; > + status = "okay"; > + events { > + ppmu_event_dmc0_1: ppmu-event3-dmc0_1 { > + event-name = "ppmu-event3-dmc0_1"; > + }; > + }; > + }; > + > + ppmu_dmc1_0: ppmu_dmc1_0@10d10000 { > + compatible = "samsung,exynos-ppmu"; > + reg = <0x10d60000 0x2000>; > + clocks = <&clock CLK_PCLK_PPMU_DREX1_0>; > + clock-names = "ppmu"; > + status = "okay"; > + events { > + ppmu_event_dmc1_0: ppmu-event3-dmc1_0 { > + event-name = "ppmu-event3-dmc1_0"; > + }; > + }; > + }; > + > + ppmu_dmc1_1: ppmu_dmc1_1@10d70000 { > + compatible = "samsung,exynos-ppmu"; > + reg = <0x10d70000 0x2000>; > + clocks = <&clock CLK_PCLK_PPMU_DREX1_1>; > + clock-names = "ppmu"; > + status = "okay"; > + events { > + ppmu_event_dmc1_1: ppmu-event3-dmc1_1 { > + event-name = "ppmu-event3-dmc1_1"; > + }; > + }; > + }; > + > + dmc: dmc@10c20000 { > + compatible = "samsung,exynos5422-dmc"; > + reg = <0x10c20000 0x10000>, <0x10c30000 0x10000>, > + <0x10030000 0x1000>, <0x10000000 0x1000>; > + clocks = <&clock CLK_FOUT_SPLL>, > + <&clock CLK_MOUT_SCLK_SPLL>, > + <&clock CLK_FF_DOUT_SPLL2>, > + <&clock CLK_FOUT_BPLL>, > + <&clock CLK_MOUT_BPLL>, > + <&clock CLK_SCLK_BPLL>, > + <&clock CLK_MOUT_MX_MSPLL_CCORE>, > + <&clock CLK_MOUT_MX_MSPLL_CCORE_PHY>, > + <&clock CLK_MOUT_MCLK_CDREX>, > + <&clock CLK_DOUT_CLK2X_PHY0>, > + <&clock CLK_CLKM_PHY0>, > + <&clock CLK_CLKM_PHY1> > + ; Join with previous line. > + clock-names = "fout_spll", > + "mout_sclk_spll", > + "ff_dout_spll2", > + "fout_bpll", > + "mout_bpll", > + "sclk_bpll", > + "mout_mx_mspll_ccore", > + "mout_mx_mspll_ccore_phy", > + "mout_mclk_cdrex", > + "dout_clk2x_phy0", > + "clkm_phy0", > + "clkm_phy1" > + ; Ditto. > + > + status = "okay"; > + devfreq-events = <&ppmu_dmc0_0>, <&ppmu_dmc0_1>, > + <&ppmu_dmc1_0>, <&ppmu_dmc1_1>; > + }; > + > + > diff --git a/MAINTAINERS b/MAINTAINERS > index 9f64f8d..3581807 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -3310,6 +3310,13 @@ S: Maintained > F: drivers/devfreq/exynos-bus.c > F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt > > +DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5 > +M: Lukasz Luba <l.luba@partner.samsung.com> > +L: linux-pm@vger.kernel.org > +L: linux-samsung-soc@vger.kernel.org > +S: Maintained > +F: Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt Maintainers change should go with the next change, I think. It looks unusual to add an entry for driver... without the driver. Best regards, Krzysztof
Hi Krzysztof, On 1/29/19 3:47 PM, Krzysztof Kozlowski wrote: > On Mon, 28 Jan 2019 at 20:21, Lukasz Luba <l.luba@partner.samsung.com> wrote: >> >> The patch adds description for DT binding for a new Exynos5 Dynamic Memory >> Controller device. >> It also contains needed MAINTAINERS file updates. >> >> CC: MyungJoo Ham <myungjoo.ham@samsung.com> >> CC: Kyungmin Park <kyungmin.park@samsung.com> >> CC: Chanwoo Choi <cw00.choi@samsung.com> >> CC: Rob Herring <robh+dt@kernel.org> >> CC: Mark Rutland <mark.rutland@arm.com> >> CC: Kukjin Kim <kgene@kernel.org> >> CC: Krzysztof Kozlowski <krzk@kernel.org> >> CC: linux-pm@vger.kernel.org >> CC: linux-samsung-soc@vger.kernel.org >> CC: devicetree@vger.kernel.org >> CC: linux-arm-kernel@lists.infradead.org >> CC: linux-kernel@vger.kernel.org >> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> >> --- >> .../devicetree/bindings/devfreq/exynos5-dmc.txt | 108 +++++++++++++++++++++ >> MAINTAINERS | 7 ++ >> 2 files changed, 115 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt >> >> diff --git a/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt >> new file mode 100644 >> index 0000000..914bd85 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt >> @@ -0,0 +1,108 @@ >> +* Exynos5 frequency and voltage scaling for Dynamic Memory Controller device >> + >> +The Samsung Exynos5 SoC has DMC (Dynamic Memory Controller) to which the DRAM >> +memory chips are connected. The driver is to monitor the controller in runtime >> +and switch frequency and voltage. To monitor the usage of the controller in >> +runtime, the driver uses the PPMU (Platform Performance Monitoring Unit), which >> +is able to measure the current load of the memory. >> +When 'userspace' governor is used for the driver, an application is able to >> +switch the DMC frequency. >> + >> +Required properties for DMC device for Exynos5422: >> +- compatible: Should be "samsung,exynos5422-bus". >> +- clock-names : the name of clock used by the bus, "bus". >> +- clocks : phandles for clock specified in "clock-names" property. >> +- devfreq-events : phandles for PPMU devices connected to this DMC. >> + >> +The example definition of a DMC and PPMU devices declared in DT is shown below: >> + >> + ppmu_dmc0_0: ppmu_dmc0_0@10d00000 { >> + compatible = "samsung,exynos-ppmu"; >> + reg = <0x10d00000 0x2000>; >> + clocks = <&clock CLK_PCLK_PPMU_DREX0_0>; >> + clock-names = "ppmu"; >> + status = "okay"; >> + events { >> + ppmu_event_dmc0_0: ppmu-event3-dmc0_0 { >> + event-name = "ppmu-event3-dmc0_0"; >> + }; >> + }; >> + }; >> + >> + >> + ppmu_dmc0_1: ppmu_dmc0_1@10d10000 { >> + compatible = "samsung,exynos-ppmu"; >> + reg = <0x10d10000 0x2000>; >> + clocks = <&clock CLK_PCLK_PPMU_DREX0_1>; >> + clock-names = "ppmu"; >> + status = "okay"; >> + events { >> + ppmu_event_dmc0_1: ppmu-event3-dmc0_1 { >> + event-name = "ppmu-event3-dmc0_1"; >> + }; >> + }; >> + }; >> + >> + ppmu_dmc1_0: ppmu_dmc1_0@10d10000 { >> + compatible = "samsung,exynos-ppmu"; >> + reg = <0x10d60000 0x2000>; >> + clocks = <&clock CLK_PCLK_PPMU_DREX1_0>; >> + clock-names = "ppmu"; >> + status = "okay"; >> + events { >> + ppmu_event_dmc1_0: ppmu-event3-dmc1_0 { >> + event-name = "ppmu-event3-dmc1_0"; >> + }; >> + }; >> + }; >> + >> + ppmu_dmc1_1: ppmu_dmc1_1@10d70000 { >> + compatible = "samsung,exynos-ppmu"; >> + reg = <0x10d70000 0x2000>; >> + clocks = <&clock CLK_PCLK_PPMU_DREX1_1>; >> + clock-names = "ppmu"; >> + status = "okay"; >> + events { >> + ppmu_event_dmc1_1: ppmu-event3-dmc1_1 { >> + event-name = "ppmu-event3-dmc1_1"; >> + }; >> + }; >> + }; >> + >> + dmc: dmc@10c20000 { >> + compatible = "samsung,exynos5422-dmc"; >> + reg = <0x10c20000 0x10000>, <0x10c30000 0x10000>, >> + <0x10030000 0x1000>, <0x10000000 0x1000>; >> + clocks = <&clock CLK_FOUT_SPLL>, >> + <&clock CLK_MOUT_SCLK_SPLL>, >> + <&clock CLK_FF_DOUT_SPLL2>, >> + <&clock CLK_FOUT_BPLL>, >> + <&clock CLK_MOUT_BPLL>, >> + <&clock CLK_SCLK_BPLL>, >> + <&clock CLK_MOUT_MX_MSPLL_CCORE>, >> + <&clock CLK_MOUT_MX_MSPLL_CCORE_PHY>, >> + <&clock CLK_MOUT_MCLK_CDREX>, >> + <&clock CLK_DOUT_CLK2X_PHY0>, >> + <&clock CLK_CLKM_PHY0>, >> + <&clock CLK_CLKM_PHY1> >> + ; > > Join with previous line. > >> + clock-names = "fout_spll", >> + "mout_sclk_spll", >> + "ff_dout_spll2", >> + "fout_bpll", >> + "mout_bpll", >> + "sclk_bpll", >> + "mout_mx_mspll_ccore", >> + "mout_mx_mspll_ccore_phy", >> + "mout_mclk_cdrex", >> + "dout_clk2x_phy0", >> + "clkm_phy0", >> + "clkm_phy1" >> + ; > > Ditto. OK, I will fix it. > >> + >> + status = "okay"; >> + devfreq-events = <&ppmu_dmc0_0>, <&ppmu_dmc0_1>, >> + <&ppmu_dmc1_0>, <&ppmu_dmc1_1>; >> + }; >> + >> + >> diff --git a/MAINTAINERS b/MAINTAINERS >> index 9f64f8d..3581807 100644 >> --- a/MAINTAINERS >> +++ b/MAINTAINERS >> @@ -3310,6 +3310,13 @@ S: Maintained >> F: drivers/devfreq/exynos-bus.c >> F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt >> >> +DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5 >> +M: Lukasz Luba <l.luba@partner.samsung.com> >> +L: linux-pm@vger.kernel.org >> +L: linux-samsung-soc@vger.kernel.org >> +S: Maintained >> +F: Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > > Maintainers change should go with the next change, I think. It looks > unusual to add an entry for driver... without the driver. Thank you for the review. I will move the dt-bindings in the patch set after the dmc driver file. Then the MAINTAINERS file will be updated only by one entry. Regards, Lukasz > > Best regards, > Krzysztof > >
On Tue, Jan 29, 2019 at 05:02:49PM +0100, Lukasz Luba wrote: > Hi Krzysztof, > > On 1/29/19 3:47 PM, Krzysztof Kozlowski wrote: > > On Mon, 28 Jan 2019 at 20:21, Lukasz Luba <l.luba@partner.samsung.com> wrote: > >> > >> The patch adds description for DT binding for a new Exynos5 Dynamic Memory > >> Controller device. > >> It also contains needed MAINTAINERS file updates. > >> > >> CC: MyungJoo Ham <myungjoo.ham@samsung.com> > >> CC: Kyungmin Park <kyungmin.park@samsung.com> > >> CC: Chanwoo Choi <cw00.choi@samsung.com> > >> CC: Rob Herring <robh+dt@kernel.org> > >> CC: Mark Rutland <mark.rutland@arm.com> > >> CC: Kukjin Kim <kgene@kernel.org> > >> CC: Krzysztof Kozlowski <krzk@kernel.org> > >> CC: linux-pm@vger.kernel.org > >> CC: linux-samsung-soc@vger.kernel.org > >> CC: devicetree@vger.kernel.org > >> CC: linux-arm-kernel@lists.infradead.org > >> CC: linux-kernel@vger.kernel.org > >> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> > >> --- > >> .../devicetree/bindings/devfreq/exynos5-dmc.txt | 108 +++++++++++++++++++++ > >> MAINTAINERS | 7 ++ > >> 2 files changed, 115 insertions(+) > >> create mode 100644 Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > >> > >> diff --git a/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > >> new file mode 100644 > >> index 0000000..914bd85 > >> --- /dev/null > >> +++ b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > >> @@ -0,0 +1,108 @@ > >> +* Exynos5 frequency and voltage scaling for Dynamic Memory Controller device > >> + > >> +The Samsung Exynos5 SoC has DMC (Dynamic Memory Controller) to which the DRAM > >> +memory chips are connected. The driver is to monitor the controller in runtime > >> +and switch frequency and voltage. To monitor the usage of the controller in > >> +runtime, the driver uses the PPMU (Platform Performance Monitoring Unit), which > >> +is able to measure the current load of the memory. > >> +When 'userspace' governor is used for the driver, an application is able to > >> +switch the DMC frequency. > >> + > >> +Required properties for DMC device for Exynos5422: > >> +- compatible: Should be "samsung,exynos5422-bus". > >> +- clock-names : the name of clock used by the bus, "bus". > >> +- clocks : phandles for clock specified in "clock-names" property. > >> +- devfreq-events : phandles for PPMU devices connected to this DMC. > >> + > >> +The example definition of a DMC and PPMU devices declared in DT is shown below: > >> + > >> + ppmu_dmc0_0: ppmu_dmc0_0@10d00000 { > >> + compatible = "samsung,exynos-ppmu"; > >> + reg = <0x10d00000 0x2000>; > >> + clocks = <&clock CLK_PCLK_PPMU_DREX0_0>; > >> + clock-names = "ppmu"; > >> + status = "okay"; > >> + events { > >> + ppmu_event_dmc0_0: ppmu-event3-dmc0_0 { > >> + event-name = "ppmu-event3-dmc0_0"; > >> + }; > >> + }; > >> + }; > >> + > >> + > >> + ppmu_dmc0_1: ppmu_dmc0_1@10d10000 { > >> + compatible = "samsung,exynos-ppmu"; > >> + reg = <0x10d10000 0x2000>; > >> + clocks = <&clock CLK_PCLK_PPMU_DREX0_1>; > >> + clock-names = "ppmu"; > >> + status = "okay"; > >> + events { > >> + ppmu_event_dmc0_1: ppmu-event3-dmc0_1 { > >> + event-name = "ppmu-event3-dmc0_1"; > >> + }; > >> + }; > >> + }; > >> + > >> + ppmu_dmc1_0: ppmu_dmc1_0@10d10000 { > >> + compatible = "samsung,exynos-ppmu"; > >> + reg = <0x10d60000 0x2000>; > >> + clocks = <&clock CLK_PCLK_PPMU_DREX1_0>; > >> + clock-names = "ppmu"; > >> + status = "okay"; > >> + events { > >> + ppmu_event_dmc1_0: ppmu-event3-dmc1_0 { > >> + event-name = "ppmu-event3-dmc1_0"; > >> + }; > >> + }; > >> + }; > >> + > >> + ppmu_dmc1_1: ppmu_dmc1_1@10d70000 { > >> + compatible = "samsung,exynos-ppmu"; > >> + reg = <0x10d70000 0x2000>; > >> + clocks = <&clock CLK_PCLK_PPMU_DREX1_1>; > >> + clock-names = "ppmu"; > >> + status = "okay"; > >> + events { > >> + ppmu_event_dmc1_1: ppmu-event3-dmc1_1 { > >> + event-name = "ppmu-event3-dmc1_1"; > >> + }; > >> + }; > >> + }; > >> + > >> + dmc: dmc@10c20000 { > >> + compatible = "samsung,exynos5422-dmc"; > >> + reg = <0x10c20000 0x10000>, <0x10c30000 0x10000>, > >> + <0x10030000 0x1000>, <0x10000000 0x1000>; > >> + clocks = <&clock CLK_FOUT_SPLL>, > >> + <&clock CLK_MOUT_SCLK_SPLL>, > >> + <&clock CLK_FF_DOUT_SPLL2>, > >> + <&clock CLK_FOUT_BPLL>, > >> + <&clock CLK_MOUT_BPLL>, > >> + <&clock CLK_SCLK_BPLL>, > >> + <&clock CLK_MOUT_MX_MSPLL_CCORE>, > >> + <&clock CLK_MOUT_MX_MSPLL_CCORE_PHY>, > >> + <&clock CLK_MOUT_MCLK_CDREX>, > >> + <&clock CLK_DOUT_CLK2X_PHY0>, > >> + <&clock CLK_CLKM_PHY0>, > >> + <&clock CLK_CLKM_PHY1> > >> + ; > > > > Join with previous line. > > > >> + clock-names = "fout_spll", > >> + "mout_sclk_spll", > >> + "ff_dout_spll2", > >> + "fout_bpll", > >> + "mout_bpll", > >> + "sclk_bpll", > >> + "mout_mx_mspll_ccore", > >> + "mout_mx_mspll_ccore_phy", > >> + "mout_mclk_cdrex", > >> + "dout_clk2x_phy0", > >> + "clkm_phy0", > >> + "clkm_phy1" > >> + ; > > > > Ditto. > OK, I will fix it. > > > >> + > >> + status = "okay"; > >> + devfreq-events = <&ppmu_dmc0_0>, <&ppmu_dmc0_1>, > >> + <&ppmu_dmc1_0>, <&ppmu_dmc1_1>; > >> + }; > >> + > >> + > >> diff --git a/MAINTAINERS b/MAINTAINERS > >> index 9f64f8d..3581807 100644 > >> --- a/MAINTAINERS > >> +++ b/MAINTAINERS > >> @@ -3310,6 +3310,13 @@ S: Maintained > >> F: drivers/devfreq/exynos-bus.c > >> F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt > >> > >> +DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5 > >> +M: Lukasz Luba <l.luba@partner.samsung.com> > >> +L: linux-pm@vger.kernel.org > >> +L: linux-samsung-soc@vger.kernel.org > >> +S: Maintained > >> +F: Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt > > > > Maintainers change should go with the next change, I think. It looks > > unusual to add an entry for driver... without the driver. > Thank you for the review. I will move the dt-bindings in the patch set > after the dmc driver file. Then the MAINTAINERS file will be updated > only by one entry. No, bindings should come first. Just move this hunk to the driver patch including the line here for the binding. Rob
diff --git a/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt new file mode 100644 index 0000000..914bd85 --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt @@ -0,0 +1,108 @@ +* Exynos5 frequency and voltage scaling for Dynamic Memory Controller device + +The Samsung Exynos5 SoC has DMC (Dynamic Memory Controller) to which the DRAM +memory chips are connected. The driver is to monitor the controller in runtime +and switch frequency and voltage. To monitor the usage of the controller in +runtime, the driver uses the PPMU (Platform Performance Monitoring Unit), which +is able to measure the current load of the memory. +When 'userspace' governor is used for the driver, an application is able to +switch the DMC frequency. + +Required properties for DMC device for Exynos5422: +- compatible: Should be "samsung,exynos5422-bus". +- clock-names : the name of clock used by the bus, "bus". +- clocks : phandles for clock specified in "clock-names" property. +- devfreq-events : phandles for PPMU devices connected to this DMC. + +The example definition of a DMC and PPMU devices declared in DT is shown below: + + ppmu_dmc0_0: ppmu_dmc0_0@10d00000 { + compatible = "samsung,exynos-ppmu"; + reg = <0x10d00000 0x2000>; + clocks = <&clock CLK_PCLK_PPMU_DREX0_0>; + clock-names = "ppmu"; + status = "okay"; + events { + ppmu_event_dmc0_0: ppmu-event3-dmc0_0 { + event-name = "ppmu-event3-dmc0_0"; + }; + }; + }; + + + ppmu_dmc0_1: ppmu_dmc0_1@10d10000 { + compatible = "samsung,exynos-ppmu"; + reg = <0x10d10000 0x2000>; + clocks = <&clock CLK_PCLK_PPMU_DREX0_1>; + clock-names = "ppmu"; + status = "okay"; + events { + ppmu_event_dmc0_1: ppmu-event3-dmc0_1 { + event-name = "ppmu-event3-dmc0_1"; + }; + }; + }; + + ppmu_dmc1_0: ppmu_dmc1_0@10d10000 { + compatible = "samsung,exynos-ppmu"; + reg = <0x10d60000 0x2000>; + clocks = <&clock CLK_PCLK_PPMU_DREX1_0>; + clock-names = "ppmu"; + status = "okay"; + events { + ppmu_event_dmc1_0: ppmu-event3-dmc1_0 { + event-name = "ppmu-event3-dmc1_0"; + }; + }; + }; + + ppmu_dmc1_1: ppmu_dmc1_1@10d70000 { + compatible = "samsung,exynos-ppmu"; + reg = <0x10d70000 0x2000>; + clocks = <&clock CLK_PCLK_PPMU_DREX1_1>; + clock-names = "ppmu"; + status = "okay"; + events { + ppmu_event_dmc1_1: ppmu-event3-dmc1_1 { + event-name = "ppmu-event3-dmc1_1"; + }; + }; + }; + + dmc: dmc@10c20000 { + compatible = "samsung,exynos5422-dmc"; + reg = <0x10c20000 0x10000>, <0x10c30000 0x10000>, + <0x10030000 0x1000>, <0x10000000 0x1000>; + clocks = <&clock CLK_FOUT_SPLL>, + <&clock CLK_MOUT_SCLK_SPLL>, + <&clock CLK_FF_DOUT_SPLL2>, + <&clock CLK_FOUT_BPLL>, + <&clock CLK_MOUT_BPLL>, + <&clock CLK_SCLK_BPLL>, + <&clock CLK_MOUT_MX_MSPLL_CCORE>, + <&clock CLK_MOUT_MX_MSPLL_CCORE_PHY>, + <&clock CLK_MOUT_MCLK_CDREX>, + <&clock CLK_DOUT_CLK2X_PHY0>, + <&clock CLK_CLKM_PHY0>, + <&clock CLK_CLKM_PHY1> + ; + clock-names = "fout_spll", + "mout_sclk_spll", + "ff_dout_spll2", + "fout_bpll", + "mout_bpll", + "sclk_bpll", + "mout_mx_mspll_ccore", + "mout_mx_mspll_ccore_phy", + "mout_mclk_cdrex", + "dout_clk2x_phy0", + "clkm_phy0", + "clkm_phy1" + ; + + status = "okay"; + devfreq-events = <&ppmu_dmc0_0>, <&ppmu_dmc0_1>, + <&ppmu_dmc1_0>, <&ppmu_dmc1_1>; + }; + + diff --git a/MAINTAINERS b/MAINTAINERS index 9f64f8d..3581807 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3310,6 +3310,13 @@ S: Maintained F: drivers/devfreq/exynos-bus.c F: Documentation/devicetree/bindings/devfreq/exynos-bus.txt +DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5 +M: Lukasz Luba <l.luba@partner.samsung.com> +L: linux-pm@vger.kernel.org +L: linux-samsung-soc@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt + BUSLOGIC SCSI DRIVER M: Khalid Aziz <khalid@gonehiking.org> L: linux-scsi@vger.kernel.org
The patch adds description for DT binding for a new Exynos5 Dynamic Memory Controller device. It also contains needed MAINTAINERS file updates. CC: MyungJoo Ham <myungjoo.ham@samsung.com> CC: Kyungmin Park <kyungmin.park@samsung.com> CC: Chanwoo Choi <cw00.choi@samsung.com> CC: Rob Herring <robh+dt@kernel.org> CC: Mark Rutland <mark.rutland@arm.com> CC: Kukjin Kim <kgene@kernel.org> CC: Krzysztof Kozlowski <krzk@kernel.org> CC: linux-pm@vger.kernel.org CC: linux-samsung-soc@vger.kernel.org CC: devicetree@vger.kernel.org CC: linux-arm-kernel@lists.infradead.org CC: linux-kernel@vger.kernel.org Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com> --- .../devicetree/bindings/devfreq/exynos5-dmc.txt | 108 +++++++++++++++++++++ MAINTAINERS | 7 ++ 2 files changed, 115 insertions(+) create mode 100644 Documentation/devicetree/bindings/devfreq/exynos5-dmc.txt