| Message ID | 20210521105919.20167-1-peng.fan@oss.nxp.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | soc: imx: add i.MX BLK-CTL support | expand |
On Fri, May 21, 2021 at 5:27 AM Peng Fan (OSS) <peng.fan@oss.nxp.com> wrote: > > From: Peng Fan <peng.fan@nxp.com> > > V5: > Rework the blk-ctl driver to let sub-PGC use blk-ctl as parent power > domain to fix the potential handshake issue. > I still keep R-b/A-b tag for Patch 1,2,4, since very minor changes > I only drop R-b tag for Patch 3, since it has big change. > An example, the pgc_mipi not take pgc_dispmix as parent: > > pgc_dispmix: power-domain@10 { > #power-domain-cells = <0>; > reg = <IMX8MM_POWER_DOMAIN_DISPMIX>; > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, > <&clk IMX8MM_CLK_DISP_AXI_ROOT>, > <&clk IMX8MM_CLK_DISP_APB_ROOT>; > }; > > pgc_mipi: power-domain@11 { > #power-domain-cells = <0>; > reg = <IMX8MM_POWER_DOMAIN_MIPI>; > power-domains = <&dispmix_blk_ctl IMX8MM_BLK_CTL_PD_DISPMIX_BUS>; With this change, I get a bunch of errors on boot. The list of power-domains appear correct on the surface, but it also has trouble waking from sleep. [ 0.695947] imx8mm-blk-ctl imx-dispmix-blk-ctl.0: invalid resource [ 0.702849] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.0 failed with error -22 [ 0.711259] imx8mm-blk-ctl imx-dispmix-blk-ctl.1: invalid resource [ 0.716451] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.1 failed with error -22 [ 0.724856] imx8mm-blk-ctl imx-dispmix-blk-ctl.2: invalid resource [ 0.730097] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.2 failed with error -22 [ 0.738398] imx8mm-blk-ctl imx-dispmix-blk-ctl.3: invalid resource [ 0.743747] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.3 failed with error -22 If I have a wrong device tree configuration, can you please post an updated device tree? I don't think an official patch for original pgc's were pushed as part of either series. I used this e-mail as the patch to enable the blk-ctl. thanks, adam > }; > > dispmix_blk_ctl: clock-controller@32e28000 { > compatible = "fsl,imx8mm-dispmix-blk-ctl", "syscon"; > reg = <0x32e28000 0x100>; > #power-domain-cells = <1>; > power-domains = <&pgc_dispmix>, <&pgc_mipi>; > power-domain-names = "dispmix", "mipi"; > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk IMX8MM_CLK_DISP_AXI_ROOT>, > <&clk IMX8MM_CLK_DISP_APB_ROOT>; > }; > > V4: > Add R-b tag > Typo fix > Update the power domain macro names Per Abel and Frieder > > V3: > Add explaination for not listing items in patch 2 commit log Per Rob. > Addressed comments from Lucas and Frieder on patch [3,4]. > A few comments from Jacky was ignored, because following gpcv2 > coding style. > > V2: > Fix yaml check failure. > > Previously there is an effort from Abel that take BLK-CTL as clock > provider, but it turns out that there is A/B lock issue and we are > not able resolve that. > > Per discuss with Lucas and Jacky, we made an agreement that take BLK-CTL > as a power domain provider and use GPC's domain as parent, the consumer > node take BLK-CTL as power domain input. > > This patchset has been tested on i.MX8MM EVK board, but one hack > is not included in the patchset is that the DISPMIX BLK-CTL > MIPI_M/S_RESET not implemented. Per Lucas, we will finally have a MIPI > DPHY driver, so fine to leave it. > > Thanks for Lucas's suggestion, Frieder Schrempf for collecting > all the patches, Abel's previous BLK-CTL work, Jacky Bai on help > debug issues. > > > Peng Fan (4): > dt-bindings: power: Add defines for i.MX8MM BLK-CTL power domains > Documentation: bindings: clk: Add bindings for i.MX BLK_CTL > soc: imx: Add generic blk-ctl driver > soc: imx: Add blk-ctl driver for i.MX8MM > > .../bindings/soc/imx/fsl,imx-blk-ctl.yaml | 66 ++++ > drivers/soc/imx/Makefile | 2 +- > drivers/soc/imx/blk-ctl-imx8mm.c | 139 ++++++++ > drivers/soc/imx/blk-ctl.c | 311 ++++++++++++++++++ > drivers/soc/imx/blk-ctl.h | 85 +++++ > include/dt-bindings/power/imx8mm-power.h | 13 + > 6 files changed, 615 insertions(+), 1 deletion(-) > create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml > create mode 100644 drivers/soc/imx/blk-ctl-imx8mm.c > create mode 100644 drivers/soc/imx/blk-ctl.c > create mode 100644 drivers/soc/imx/blk-ctl.h > > -- > 2.30.0 >
> Subject: Re: [PATCH V5 0/4] soc: imx: add i.MX BLK-CTL support > > On Fri, May 21, 2021 at 5:27 AM Peng Fan (OSS) <peng.fan@oss.nxp.com> > wrote: > > > > From: Peng Fan <peng.fan@nxp.com> > > > > V5: > > Rework the blk-ctl driver to let sub-PGC use blk-ctl as parent power > > domain to fix the potential handshake issue. > > I still keep R-b/A-b tag for Patch 1,2,4, since very minor changes I > > only drop R-b tag for Patch 3, since it has big change. > > An example, the pgc_mipi not take pgc_dispmix as parent: > > > > pgc_dispmix: power-domain@10 { > > #power-domain-cells = <0>; > > reg = <IMX8MM_POWER_DOMAIN_DISPMIX>; > > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, > > <&clk IMX8MM_CLK_DISP_AXI_ROOT>, > > <&clk IMX8MM_CLK_DISP_APB_ROOT>; > > }; > > > > pgc_mipi: power-domain@11 { > > #power-domain-cells = <0>; > > reg = <IMX8MM_POWER_DOMAIN_MIPI>; > > power-domains = <&dispmix_blk_ctl > > IMX8MM_BLK_CTL_PD_DISPMIX_BUS>; > > With this change, I get a bunch of errors on boot. The list of power-domains > appear correct on the surface, but it also has trouble waking from sleep. > > [ 0.695947] imx8mm-blk-ctl imx-dispmix-blk-ctl.0: invalid resource > [ 0.702849] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.0 failed > with error -22 > [ 0.711259] imx8mm-blk-ctl imx-dispmix-blk-ctl.1: invalid resource > [ 0.716451] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.1 failed > with error -22 > [ 0.724856] imx8mm-blk-ctl imx-dispmix-blk-ctl.2: invalid resource > [ 0.730097] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.2 failed > with error -22 > [ 0.738398] imx8mm-blk-ctl imx-dispmix-blk-ctl.3: invalid resource > [ 0.743747] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.3 failed > with error -22 It is just the imx8mm-blk-ctl driver matches with the new created child device, because the child device points the of_node of the parent device. But this error will not affect functionality. I'll resolve this issue and send out v6. > > If I have a wrong device tree configuration, can you please post an updated > device tree? I don't think an official patch for original pgc's were pushed as > part of either series. I used this e-mail as the patch to enable the blk-ctl. Do you have an device tree, I could give a look. Regards, Peng. > > thanks, > > adam > > > }; > > > > dispmix_blk_ctl: clock-controller@32e28000 { > > compatible = "fsl,imx8mm-dispmix-blk-ctl", "syscon"; > > reg = <0x32e28000 0x100>; > > #power-domain-cells = <1>; > > power-domains = <&pgc_dispmix>, <&pgc_mipi>; > > power-domain-names = "dispmix", "mipi"; > > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk > IMX8MM_CLK_DISP_AXI_ROOT>, > > <&clk IMX8MM_CLK_DISP_APB_ROOT>; > > }; > > > > V4: > > Add R-b tag > > Typo fix > > Update the power domain macro names Per Abel and Frieder > > > > V3: > > Add explaination for not listing items in patch 2 commit log Per Rob. > > Addressed comments from Lucas and Frieder on patch [3,4]. > > A few comments from Jacky was ignored, because following gpcv2 > > coding style. > > > > V2: > > Fix yaml check failure. > > > > Previously there is an effort from Abel that take BLK-CTL as clock > > provider, but it turns out that there is A/B lock issue and we are not > > able resolve that. > > > > Per discuss with Lucas and Jacky, we made an agreement that take > > BLK-CTL as a power domain provider and use GPC's domain as parent, the > > consumer node take BLK-CTL as power domain input. > > > > This patchset has been tested on i.MX8MM EVK board, but one hack is > > not included in the patchset is that the DISPMIX BLK-CTL > > MIPI_M/S_RESET not implemented. Per Lucas, we will finally have a MIPI > > DPHY driver, so fine to leave it. > > > > Thanks for Lucas's suggestion, Frieder Schrempf for collecting all the > > patches, Abel's previous BLK-CTL work, Jacky Bai on help debug issues. > > > > > > Peng Fan (4): > > dt-bindings: power: Add defines for i.MX8MM BLK-CTL power domains > > Documentation: bindings: clk: Add bindings for i.MX BLK_CTL > > soc: imx: Add generic blk-ctl driver > > soc: imx: Add blk-ctl driver for i.MX8MM > > > > .../bindings/soc/imx/fsl,imx-blk-ctl.yaml | 66 ++++ > > drivers/soc/imx/Makefile | 2 +- > > drivers/soc/imx/blk-ctl-imx8mm.c | 139 ++++++++ > > drivers/soc/imx/blk-ctl.c | 311 > ++++++++++++++++++ > > drivers/soc/imx/blk-ctl.h | 85 +++++ > > include/dt-bindings/power/imx8mm-power.h | 13 + > > 6 files changed, 615 insertions(+), 1 deletion(-) create mode 100644 > > Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml > > create mode 100644 drivers/soc/imx/blk-ctl-imx8mm.c create mode > > 100644 drivers/soc/imx/blk-ctl.c create mode 100644 > > drivers/soc/imx/blk-ctl.h > > > > -- > > 2.30.0 > >
On Fri, May 21, 2021 at 7:54 PM Peng Fan <peng.fan@nxp.com> wrote: > > > Subject: Re: [PATCH V5 0/4] soc: imx: add i.MX BLK-CTL support > > > > On Fri, May 21, 2021 at 5:27 AM Peng Fan (OSS) <peng.fan@oss.nxp.com> > > wrote: > > > > > > From: Peng Fan <peng.fan@nxp.com> > > > > > > V5: > > > Rework the blk-ctl driver to let sub-PGC use blk-ctl as parent power > > > domain to fix the potential handshake issue. > > > I still keep R-b/A-b tag for Patch 1,2,4, since very minor changes I > > > only drop R-b tag for Patch 3, since it has big change. > > > An example, the pgc_mipi not take pgc_dispmix as parent: > > > > > > pgc_dispmix: power-domain@10 { > > > #power-domain-cells = <0>; > > > reg = <IMX8MM_POWER_DOMAIN_DISPMIX>; > > > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, > > > <&clk IMX8MM_CLK_DISP_AXI_ROOT>, > > > <&clk IMX8MM_CLK_DISP_APB_ROOT>; > > > }; > > > > > > pgc_mipi: power-domain@11 { > > > #power-domain-cells = <0>; > > > reg = <IMX8MM_POWER_DOMAIN_MIPI>; > > > power-domains = <&dispmix_blk_ctl > > > IMX8MM_BLK_CTL_PD_DISPMIX_BUS>; > > > > With this change, I get a bunch of errors on boot. The list of power-domains > > appear correct on the surface, but it also has trouble waking from sleep. > > > > [ 0.695947] imx8mm-blk-ctl imx-dispmix-blk-ctl.0: invalid resource > > [ 0.702849] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.0 failed > > with error -22 > > [ 0.711259] imx8mm-blk-ctl imx-dispmix-blk-ctl.1: invalid resource > > [ 0.716451] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.1 failed > > with error -22 > > [ 0.724856] imx8mm-blk-ctl imx-dispmix-blk-ctl.2: invalid resource > > [ 0.730097] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.2 failed > > with error -22 > > [ 0.738398] imx8mm-blk-ctl imx-dispmix-blk-ctl.3: invalid resource > > [ 0.743747] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.3 failed > > with error -22 > > It is just the imx8mm-blk-ctl driver matches with the new created > child device, because the child device points the of_node of the parent > device. > But this error will not affect functionality. > I'll resolve this issue and send out v6. > > > > If I have a wrong device tree configuration, can you please post an updated > > device tree? I don't think an official patch for original pgc's were pushed as > > part of either series. I used this e-mail as the patch to enable the blk-ctl. > > Do you have an device tree, I could give a look. I have a git repo where I've been collecting the various power domain patches. I have updated the imx8mn blk-ctl and device trees as well in that same repo. https://github.com/aford173/linux/blob/linux-5.13.y-aford/arch/arm64/boot/dts/freescale/imx8mm.dtsi thanks for looking at this. adam > > Regards, > Peng. > > > > > thanks, > > > > adam > > > > > }; > > > > > > dispmix_blk_ctl: clock-controller@32e28000 { > > > compatible = "fsl,imx8mm-dispmix-blk-ctl", "syscon"; > > > reg = <0x32e28000 0x100>; > > > #power-domain-cells = <1>; > > > power-domains = <&pgc_dispmix>, <&pgc_mipi>; > > > power-domain-names = "dispmix", "mipi"; > > > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk > > IMX8MM_CLK_DISP_AXI_ROOT>, > > > <&clk IMX8MM_CLK_DISP_APB_ROOT>; > > > }; > > > > > > V4: > > > Add R-b tag > > > Typo fix > > > Update the power domain macro names Per Abel and Frieder > > > > > > V3: > > > Add explaination for not listing items in patch 2 commit log Per Rob. > > > Addressed comments from Lucas and Frieder on patch [3,4]. > > > A few comments from Jacky was ignored, because following gpcv2 > > > coding style. > > > > > > V2: > > > Fix yaml check failure. > > > > > > Previously there is an effort from Abel that take BLK-CTL as clock > > > provider, but it turns out that there is A/B lock issue and we are not > > > able resolve that. > > > > > > Per discuss with Lucas and Jacky, we made an agreement that take > > > BLK-CTL as a power domain provider and use GPC's domain as parent, the > > > consumer node take BLK-CTL as power domain input. > > > > > > This patchset has been tested on i.MX8MM EVK board, but one hack is > > > not included in the patchset is that the DISPMIX BLK-CTL > > > MIPI_M/S_RESET not implemented. Per Lucas, we will finally have a MIPI > > > DPHY driver, so fine to leave it. > > > > > > Thanks for Lucas's suggestion, Frieder Schrempf for collecting all the > > > patches, Abel's previous BLK-CTL work, Jacky Bai on help debug issues. > > > > > > > > > Peng Fan (4): > > > dt-bindings: power: Add defines for i.MX8MM BLK-CTL power domains > > > Documentation: bindings: clk: Add bindings for i.MX BLK_CTL > > > soc: imx: Add generic blk-ctl driver > > > soc: imx: Add blk-ctl driver for i.MX8MM > > > > > > .../bindings/soc/imx/fsl,imx-blk-ctl.yaml | 66 ++++ > > > drivers/soc/imx/Makefile | 2 +- > > > drivers/soc/imx/blk-ctl-imx8mm.c | 139 ++++++++ > > > drivers/soc/imx/blk-ctl.c | 311 > > ++++++++++++++++++ > > > drivers/soc/imx/blk-ctl.h | 85 +++++ > > > include/dt-bindings/power/imx8mm-power.h | 13 + > > > 6 files changed, 615 insertions(+), 1 deletion(-) create mode 100644 > > > Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml > > > create mode 100644 drivers/soc/imx/blk-ctl-imx8mm.c create mode > > > 100644 drivers/soc/imx/blk-ctl.c create mode 100644 > > > drivers/soc/imx/blk-ctl.h > > > > > > -- > > > 2.30.0 > > >
> Subject: Re: [PATCH V5 0/4] soc: imx: add i.MX BLK-CTL support > > On Fri, May 21, 2021 at 7:54 PM Peng Fan <peng.fan@nxp.com> wrote: > > > > > Subject: Re: [PATCH V5 0/4] soc: imx: add i.MX BLK-CTL support > > > > > > On Fri, May 21, 2021 at 5:27 AM Peng Fan (OSS) > > > <peng.fan@oss.nxp.com> > > > wrote: > > > > > > > > From: Peng Fan <peng.fan@nxp.com> > > > > > > > > V5: > > > > Rework the blk-ctl driver to let sub-PGC use blk-ctl as parent > > > > power domain to fix the potential handshake issue. > > > > I still keep R-b/A-b tag for Patch 1,2,4, since very minor > > > > changes I only drop R-b tag for Patch 3, since it has big change. > > > > An example, the pgc_mipi not take pgc_dispmix as parent: > > > > > > > > pgc_dispmix: power-domain@10 { > > > > #power-domain-cells = <0>; > > > > reg = <IMX8MM_POWER_DOMAIN_DISPMIX>; > > > > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, > > > > <&clk IMX8MM_CLK_DISP_AXI_ROOT>, > > > > <&clk > IMX8MM_CLK_DISP_APB_ROOT>; > > > > }; > > > > > > > > pgc_mipi: power-domain@11 { > > > > #power-domain-cells = <0>; > > > > reg = <IMX8MM_POWER_DOMAIN_MIPI>; > > > > power-domains = <&dispmix_blk_ctl > > > > IMX8MM_BLK_CTL_PD_DISPMIX_BUS>; > > > > > > With this change, I get a bunch of errors on boot. The list of > > > power-domains appear correct on the surface, but it also has trouble > waking from sleep. > > > > > > [ 0.695947] imx8mm-blk-ctl imx-dispmix-blk-ctl.0: invalid resource > > > [ 0.702849] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.0 failed > > > with error -22 > > > [ 0.711259] imx8mm-blk-ctl imx-dispmix-blk-ctl.1: invalid resource > > > [ 0.716451] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.1 failed > > > with error -22 > > > [ 0.724856] imx8mm-blk-ctl imx-dispmix-blk-ctl.2: invalid resource > > > [ 0.730097] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.2 failed > > > with error -22 > > > [ 0.738398] imx8mm-blk-ctl imx-dispmix-blk-ctl.3: invalid resource > > > [ 0.743747] imx8mm-blk-ctl: probe of imx-dispmix-blk-ctl.3 failed > > > with error -22 > > > > It is just the imx8mm-blk-ctl driver matches with the new created > > child device, because the child device points the of_node of the > > parent device. > > But this error will not affect functionality. > > I'll resolve this issue and send out v6. > > > > > > If I have a wrong device tree configuration, can you please post an > > > updated device tree? I don't think an official patch for original > > > pgc's were pushed as part of either series. I used this e-mail as the patch > to enable the blk-ctl. > > > > Do you have an device tree, I could give a look. > > I have a git repo where I've been collecting the various power domain patches. > I have updated the imx8mn blk-ctl and device trees as well in that same repo. I put my dts diff here: https://gist.github.com/MrVan/d73888d8273c43ea4a3b28fa668ca1d0 Not include vpu, lcdif, mipi, just gpc and blk-ctl. Your dts has error, the vpu-g1/g2/h1 should use vpu-blk as parent power domain. And the vpu-blk-ctl power domain changes as below: power-domain-names = "vpumix", "vpu-g1", "vpu-g2", "vpu-h1"; Regards, Peng. > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub. > com%2Faford173%2Flinux%2Fblob%2Flinux-5.13.y-aford%2Farch%2Farm64% > 2Fboot%2Fdts%2Ffreescale%2Fimx8mm.dtsi&data=04%7C01%7Cpeng.f > an%40nxp.com%7Ca5c04b8b13514290944008d91cc9d95f%7C686ea1d3bc2 > b4c6fa92cd99c5c301635%7C0%7C0%7C637572475532314749%7CUnknown > %7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1ha > WwiLCJXVCI6Mn0%3D%7C1000&sdata=NjxeojlrUc5t1tmrpZrhmYL1jaGB > QNHv8QVh2OcgMpA%3D&reserved=0 > > thanks for looking at this. > > adam > > > > Regards, > > Peng. > > > > > > > > thanks, > > > > > > adam > > > > > > > }; > > > > > > > > dispmix_blk_ctl: clock-controller@32e28000 { > > > > compatible = "fsl,imx8mm-dispmix-blk-ctl", > "syscon"; > > > > reg = <0x32e28000 0x100>; > > > > #power-domain-cells = <1>; > > > > power-domains = <&pgc_dispmix>, <&pgc_mipi>; > > > > power-domain-names = "dispmix", "mipi"; > > > > clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk > > > IMX8MM_CLK_DISP_AXI_ROOT>, > > > > <&clk > IMX8MM_CLK_DISP_APB_ROOT>; > > > > }; > > > > > > > > V4: > > > > Add R-b tag > > > > Typo fix > > > > Update the power domain macro names Per Abel and Frieder > > > > > > > > V3: > > > > Add explaination for not listing items in patch 2 commit log Per Rob. > > > > Addressed comments from Lucas and Frieder on patch [3,4]. > > > > A few comments from Jacky was ignored, because following gpcv2 > > > > coding style. > > > > > > > > V2: > > > > Fix yaml check failure. > > > > > > > > Previously there is an effort from Abel that take BLK-CTL as clock > > > > provider, but it turns out that there is A/B lock issue and we are > > > > not able resolve that. > > > > > > > > Per discuss with Lucas and Jacky, we made an agreement that take > > > > BLK-CTL as a power domain provider and use GPC's domain as parent, > > > > the consumer node take BLK-CTL as power domain input. > > > > > > > > This patchset has been tested on i.MX8MM EVK board, but one hack > > > > is not included in the patchset is that the DISPMIX BLK-CTL > > > > MIPI_M/S_RESET not implemented. Per Lucas, we will finally have a > > > > MIPI DPHY driver, so fine to leave it. > > > > > > > > Thanks for Lucas's suggestion, Frieder Schrempf for collecting all > > > > the patches, Abel's previous BLK-CTL work, Jacky Bai on help debug > issues. > > > > > > > > > > > > Peng Fan (4): > > > > dt-bindings: power: Add defines for i.MX8MM BLK-CTL power > domains > > > > Documentation: bindings: clk: Add bindings for i.MX BLK_CTL > > > > soc: imx: Add generic blk-ctl driver > > > > soc: imx: Add blk-ctl driver for i.MX8MM > > > > > > > > .../bindings/soc/imx/fsl,imx-blk-ctl.yaml | 66 ++++ > > > > drivers/soc/imx/Makefile | 2 +- > > > > drivers/soc/imx/blk-ctl-imx8mm.c | 139 ++++++++ > > > > drivers/soc/imx/blk-ctl.c | 311 > > > ++++++++++++++++++ > > > > drivers/soc/imx/blk-ctl.h | 85 +++++ > > > > include/dt-bindings/power/imx8mm-power.h | 13 + > > > > 6 files changed, 615 insertions(+), 1 deletion(-) create mode > > > > 100644 > > > > Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml > > > > create mode 100644 drivers/soc/imx/blk-ctl-imx8mm.c create > mode > > > > 100644 drivers/soc/imx/blk-ctl.c create mode 100644 > > > > drivers/soc/imx/blk-ctl.h > > > > > > > > -- > > > > 2.30.0 > > > >
From: Peng Fan <peng.fan@nxp.com> V5: Rework the blk-ctl driver to let sub-PGC use blk-ctl as parent power domain to fix the potential handshake issue. I still keep R-b/A-b tag for Patch 1,2,4, since very minor changes I only drop R-b tag for Patch 3, since it has big change. An example, the pgc_mipi not take pgc_dispmix as parent: pgc_dispmix: power-domain@10 { #power-domain-cells = <0>; reg = <IMX8MM_POWER_DOMAIN_DISPMIX>; clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk IMX8MM_CLK_DISP_AXI_ROOT>, <&clk IMX8MM_CLK_DISP_APB_ROOT>; }; pgc_mipi: power-domain@11 { #power-domain-cells = <0>; reg = <IMX8MM_POWER_DOMAIN_MIPI>; power-domains = <&dispmix_blk_ctl IMX8MM_BLK_CTL_PD_DISPMIX_BUS>; }; dispmix_blk_ctl: clock-controller@32e28000 { compatible = "fsl,imx8mm-dispmix-blk-ctl", "syscon"; reg = <0x32e28000 0x100>; #power-domain-cells = <1>; power-domains = <&pgc_dispmix>, <&pgc_mipi>; power-domain-names = "dispmix", "mipi"; clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk IMX8MM_CLK_DISP_AXI_ROOT>, <&clk IMX8MM_CLK_DISP_APB_ROOT>; }; V4: Add R-b tag Typo fix Update the power domain macro names Per Abel and Frieder V3: Add explaination for not listing items in patch 2 commit log Per Rob. Addressed comments from Lucas and Frieder on patch [3,4]. A few comments from Jacky was ignored, because following gpcv2 coding style. V2: Fix yaml check failure. Previously there is an effort from Abel that take BLK-CTL as clock provider, but it turns out that there is A/B lock issue and we are not able resolve that. Per discuss with Lucas and Jacky, we made an agreement that take BLK-CTL as a power domain provider and use GPC's domain as parent, the consumer node take BLK-CTL as power domain input. This patchset has been tested on i.MX8MM EVK board, but one hack is not included in the patchset is that the DISPMIX BLK-CTL MIPI_M/S_RESET not implemented. Per Lucas, we will finally have a MIPI DPHY driver, so fine to leave it. Thanks for Lucas's suggestion, Frieder Schrempf for collecting all the patches, Abel's previous BLK-CTL work, Jacky Bai on help debug issues. Peng Fan (4): dt-bindings: power: Add defines for i.MX8MM BLK-CTL power domains Documentation: bindings: clk: Add bindings for i.MX BLK_CTL soc: imx: Add generic blk-ctl driver soc: imx: Add blk-ctl driver for i.MX8MM .../bindings/soc/imx/fsl,imx-blk-ctl.yaml | 66 ++++ drivers/soc/imx/Makefile | 2 +- drivers/soc/imx/blk-ctl-imx8mm.c | 139 ++++++++ drivers/soc/imx/blk-ctl.c | 311 ++++++++++++++++++ drivers/soc/imx/blk-ctl.h | 85 +++++ include/dt-bindings/power/imx8mm-power.h | 13 + 6 files changed, 615 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml create mode 100644 drivers/soc/imx/blk-ctl-imx8mm.c create mode 100644 drivers/soc/imx/blk-ctl.c create mode 100644 drivers/soc/imx/blk-ctl.h