From: "André Przywara" <andre.przywara@arm.com> To: Amit Tomer <amittomer25@gmail.com>, Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: "Andreas Färber" <afaerber@suse.de>, "Rob Herring" <robh+dt@kernel.org>, cristian.ciocaltea@gmail.com, linux-kernel@vger.kernel.org, linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, linux-actions@lists.infradead.org, devicetree@vger.kernel.org Subject: Re: [PATCH v5 10/10] arm64: dts: actions: Add uSD support for Cubieboard7 Date: Mon, 13 Jul 2020 00:17:57 +0100 [thread overview] Message-ID: <5e2eb92e-eada-9b14-3f15-38717284bc92@arm.com> (raw) In-Reply-To: <CABHD4K8+cZMwA=pQx4Gvv5Z4xLof8Ln6fUNrB0=-SS2M_0_3aw@mail.gmail.com> On 12/07/2020 19:45, Amit Tomer wrote: Hi, > On Sun, Jul 12, 2020 at 11:00 PM Manivannan Sadhasivam > <manivannan.sadhasivam@linaro.org> wrote: >> >> On Thu, Jul 02, 2020 at 08:22:56PM +0530, Amit Singh Tomar wrote: >>> This commit adds uSD support for Cubieboard7 board based on Actions Semi >>> S700 SoC. SD0 is connected to uSD slot. Since there is no PMIC support >>> added yet, fixed regulator has been used as a regulator node. >>> >>> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> >>> --- >>> Changes since v4: >>> * No change. >>> Changes since v3: >>> * No change. >>> Changes since v2: >>> * No change. >>> Changes since v1: >>> * No change. >>> Changes since RFC: >>> * No change. >>> --- >>> arch/arm64/boot/dts/actions/s700-cubieboard7.dts | 41 ++++++++++++++++++++++++ >>> arch/arm64/boot/dts/actions/s700.dtsi | 1 + >>> 2 files changed, 42 insertions(+) >>> >>> diff --git a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts >>> index 63e375cd9eb4..ec117eb12f3a 100644 >>> --- a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts >>> +++ b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts >>> @@ -13,6 +13,7 @@ >>> >>> aliases { >>> serial3 = &uart3; >>> + mmc0 = &mmc0; >>> }; >>> >>> chosen { >>> @@ -28,6 +29,23 @@ >>> device_type = "memory"; >>> reg = <0x1 0xe0000000 0x0 0x0>; >>> }; >>> + >>> + /* Fixed regulator used in the absence of PMIC */ >>> + vcc_3v1: vcc-3v1 { >>> + compatible = "regulator-fixed"; >>> + regulator-name = "fixed-3.1V"; >>> + regulator-min-microvolt = <3100000>; >>> + regulator-max-microvolt = <3100000>; >>> + }; >> >> Is this regulator used somewhere? > > This is something I copied from bubblegum dts as I wasn't sure what is right way > to include these regulators. But this regulator is only used for the eMMC there, which we apparently don't have on the Cubieboard 7? > Also, another day tested it without having these regulators in , and > still it seems to > work. So should these be removed ? If there are not even referenced in the .dts, then fixed regulators are rather pointless. So yes, please remove this vcc-3v1 one. What is the story with the other regulator? Is there a PMIC or a power switch for the SD card? Or is the power supply actually hardwired? Cheers, Andre
WARNING: multiple messages have this Message-ID (diff)
From: "André Przywara" <andre.przywara@arm.com> To: Amit Tomer <amittomer25@gmail.com>, Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: devicetree@vger.kernel.org, linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org, cristian.ciocaltea@gmail.com, "Rob Herring" <robh+dt@kernel.org>, "Andreas Färber" <afaerber@suse.de>, linux-arm-kernel <linux-arm-kernel@lists.infradead.org> Subject: Re: [PATCH v5 10/10] arm64: dts: actions: Add uSD support for Cubieboard7 Date: Mon, 13 Jul 2020 00:17:57 +0100 [thread overview] Message-ID: <5e2eb92e-eada-9b14-3f15-38717284bc92@arm.com> (raw) In-Reply-To: <CABHD4K8+cZMwA=pQx4Gvv5Z4xLof8Ln6fUNrB0=-SS2M_0_3aw@mail.gmail.com> On 12/07/2020 19:45, Amit Tomer wrote: Hi, > On Sun, Jul 12, 2020 at 11:00 PM Manivannan Sadhasivam > <manivannan.sadhasivam@linaro.org> wrote: >> >> On Thu, Jul 02, 2020 at 08:22:56PM +0530, Amit Singh Tomar wrote: >>> This commit adds uSD support for Cubieboard7 board based on Actions Semi >>> S700 SoC. SD0 is connected to uSD slot. Since there is no PMIC support >>> added yet, fixed regulator has been used as a regulator node. >>> >>> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> >>> --- >>> Changes since v4: >>> * No change. >>> Changes since v3: >>> * No change. >>> Changes since v2: >>> * No change. >>> Changes since v1: >>> * No change. >>> Changes since RFC: >>> * No change. >>> --- >>> arch/arm64/boot/dts/actions/s700-cubieboard7.dts | 41 ++++++++++++++++++++++++ >>> arch/arm64/boot/dts/actions/s700.dtsi | 1 + >>> 2 files changed, 42 insertions(+) >>> >>> diff --git a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts >>> index 63e375cd9eb4..ec117eb12f3a 100644 >>> --- a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts >>> +++ b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts >>> @@ -13,6 +13,7 @@ >>> >>> aliases { >>> serial3 = &uart3; >>> + mmc0 = &mmc0; >>> }; >>> >>> chosen { >>> @@ -28,6 +29,23 @@ >>> device_type = "memory"; >>> reg = <0x1 0xe0000000 0x0 0x0>; >>> }; >>> + >>> + /* Fixed regulator used in the absence of PMIC */ >>> + vcc_3v1: vcc-3v1 { >>> + compatible = "regulator-fixed"; >>> + regulator-name = "fixed-3.1V"; >>> + regulator-min-microvolt = <3100000>; >>> + regulator-max-microvolt = <3100000>; >>> + }; >> >> Is this regulator used somewhere? > > This is something I copied from bubblegum dts as I wasn't sure what is right way > to include these regulators. But this regulator is only used for the eMMC there, which we apparently don't have on the Cubieboard 7? > Also, another day tested it without having these regulators in , and > still it seems to > work. So should these be removed ? If there are not even referenced in the .dts, then fixed regulators are rather pointless. So yes, please remove this vcc-3v1 one. What is the story with the other regulator? Is there a PMIC or a power switch for the SD card? Or is the power supply actually hardwired? Cheers, Andre _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-07-12 23:19 UTC|newest] Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-02 14:52 [PATCH v5 00/10] Add MMC and DMA support for Actions S700 Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-02 14:52 ` [PATCH v5 01/10] dt-bindings: dmaengine: convert Actions Semi Owl SoCs bindings to yaml Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-02 21:00 ` Rob Herring 2020-07-02 21:00 ` Rob Herring 2020-07-03 7:18 ` Amit Tomer 2020-07-03 7:18 ` Amit Tomer 2020-07-03 7:54 ` Amit Tomer 2020-07-03 7:54 ` Amit Tomer 2020-07-07 14:31 ` Rob Herring 2020-07-07 14:31 ` Rob Herring 2020-07-02 14:52 ` [PATCH v5 02/10] dmaengine: Actions: get rid of bit fields from dma descriptor Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:11 ` Manivannan Sadhasivam 2020-07-12 17:11 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 03/10] dmaengine: Actions: Add support for S700 DMA engine Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-02 22:07 ` kernel test robot 2020-07-02 22:07 ` kernel test robot 2020-07-02 22:07 ` kernel test robot 2020-07-02 14:52 ` [PATCH v5 04/10] clk: actions: Add MMC clock-register reset bits Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:20 ` Manivannan Sadhasivam 2020-07-12 17:20 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 05/10] arm64: dts: actions: limit address range for pinctrl node Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:23 ` Manivannan Sadhasivam 2020-07-12 17:23 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 06/10] arm64: dts: actions: Add DMA Controller for S700 Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:24 ` Manivannan Sadhasivam 2020-07-12 17:24 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 07/10] dt-bindings: reset: s700: Add binding constants for mmc Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:25 ` Manivannan Sadhasivam 2020-07-12 17:25 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 08/10] dt-bindings: mmc: owl: add compatible string actions,s700-mmc Amit Singh Tomar 2020-07-02 14:52 ` [PATCH v5 08/10] dt-bindings: mmc: owl: add compatible string actions, s700-mmc Amit Singh Tomar 2020-07-12 17:26 ` [PATCH v5 08/10] dt-bindings: mmc: owl: add compatible string actions,s700-mmc Manivannan Sadhasivam 2020-07-12 17:26 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 09/10] arm64: dts: actions: Add MMC controller support for S700 Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:28 ` Manivannan Sadhasivam 2020-07-12 17:28 ` Manivannan Sadhasivam 2020-07-02 14:52 ` [PATCH v5 10/10] arm64: dts: actions: Add uSD support for Cubieboard7 Amit Singh Tomar 2020-07-02 14:52 ` Amit Singh Tomar 2020-07-12 17:30 ` Manivannan Sadhasivam 2020-07-12 17:30 ` Manivannan Sadhasivam 2020-07-12 18:45 ` Amit Tomer 2020-07-12 18:45 ` Amit Tomer 2020-07-12 23:17 ` André Przywara [this message] 2020-07-12 23:17 ` André Przywara 2020-07-13 9:03 ` Amit Tomer 2020-07-13 9:03 ` Amit Tomer 2020-07-13 3:00 ` Manivannan Sadhasivam 2020-07-13 3:00 ` Manivannan Sadhasivam 2020-07-13 9:08 ` Amit Tomer 2020-07-13 9:08 ` Amit Tomer 2020-07-17 14:40 ` Manivannan Sadhasivam 2020-07-17 14:40 ` Manivannan Sadhasivam
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=5e2eb92e-eada-9b14-3f15-38717284bc92@arm.com \ --to=andre.przywara@arm.com \ --cc=afaerber@suse.de \ --cc=amittomer25@gmail.com \ --cc=cristian.ciocaltea@gmail.com \ --cc=devicetree@vger.kernel.org \ --cc=linux-actions@lists.infradead.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=manivannan.sadhasivam@linaro.org \ --cc=robh+dt@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.