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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: 赵仪峰 <yifeng.zhao@rock-chips.com>
Cc: "Johan Jonker" <jbx6244@gmail.com>, richard <richard@nod.at>,
	vigneshr <vigneshr@ti.com>, robh+dt <robh+dt@kernel.org>,
	devicetree <devicetree@vger.kernel.org>,
	HeikoStübner <heiko@sntech.de>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-rockchip <linux-rockchip@lists.infradead.org>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v13 2/8] mtd: rawnand: rockchip: NFC drivers for RK3308, RK2928 and others
Date: Mon, 2 Nov 2020 08:32:58 +0100	[thread overview]
Message-ID: <20201102083258.3a748c44@xps13> (raw)
In-Reply-To: <20201102114503679684135@rock-chips.com>

Hello,

赵仪峰 <yifeng.zhao@rock-chips.com> wrote on Mon, 2 Nov 2020 11:46:04
+0800:

> Hi Johan,
> 
> void nand_deselect_target(struct nand_chip *chip)
> {
> 	if (chip->legacy.select_chip)
> 		chip->legacy.select_chip(chip, -1);
> 
> 	chip->cur_cs = -1;
> }
> 
> I need add the code below and it work. 
> 
>    chip->legacy.select_chip = rk_nfc_select_chip;
> 
> But I found almost all nandc drivers do not add this code. Is there any other way to implement it?

Indeed, we don't accept new code we legacy bindings.

I don't understand what extra consumption you are trying to avoid,
because if it is the NAND device itself that is able to save power when
it gets unselected, it's really none of you controller's business.

Perhaps it's the time to focus on the controller support and tune the
code base later in a bid to reduce consumption.

Thanks,
Miquèl

WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com>
To: 赵仪峰 <yifeng.zhao@rock-chips.com>
Cc: devicetree <devicetree@vger.kernel.org>,
	HeikoStübner <heiko@sntech.de>, richard <richard@nod.at>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-rockchip <linux-rockchip@lists.infradead.org>,
	robh+dt <robh+dt@kernel.org>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	"Johan Jonker" <jbx6244@gmail.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	vigneshr <vigneshr@ti.com>
Subject: Re: [PATCH v13 2/8] mtd: rawnand: rockchip: NFC drivers for RK3308, RK2928 and others
Date: Mon, 2 Nov 2020 08:32:58 +0100	[thread overview]
Message-ID: <20201102083258.3a748c44@xps13> (raw)
In-Reply-To: <20201102114503679684135@rock-chips.com>

Hello,

赵仪峰 <yifeng.zhao@rock-chips.com> wrote on Mon, 2 Nov 2020 11:46:04
+0800:

> Hi Johan,
> 
> void nand_deselect_target(struct nand_chip *chip)
> {
> 	if (chip->legacy.select_chip)
> 		chip->legacy.select_chip(chip, -1);
> 
> 	chip->cur_cs = -1;
> }
> 
> I need add the code below and it work. 
> 
>    chip->legacy.select_chip = rk_nfc_select_chip;
> 
> But I found almost all nandc drivers do not add this code. Is there any other way to implement it?

Indeed, we don't accept new code we legacy bindings.

I don't understand what extra consumption you are trying to avoid,
because if it is the NAND device itself that is able to save power when
it gets unselected, it's really none of you controller's business.

Perhaps it's the time to focus on the controller support and tune the
code base later in a bid to reduce consumption.

Thanks,
Miquèl

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com>
To: 赵仪峰 <yifeng.zhao@rock-chips.com>
Cc: devicetree <devicetree@vger.kernel.org>,
	HeikoStübner <heiko@sntech.de>, richard <richard@nod.at>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-rockchip <linux-rockchip@lists.infradead.org>,
	robh+dt <robh+dt@kernel.org>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	"Johan Jonker" <jbx6244@gmail.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	vigneshr <vigneshr@ti.com>
Subject: Re: [PATCH v13 2/8] mtd: rawnand: rockchip: NFC drivers for RK3308, RK2928 and others
Date: Mon, 2 Nov 2020 08:32:58 +0100	[thread overview]
Message-ID: <20201102083258.3a748c44@xps13> (raw)
In-Reply-To: <20201102114503679684135@rock-chips.com>

Hello,

赵仪峰 <yifeng.zhao@rock-chips.com> wrote on Mon, 2 Nov 2020 11:46:04
+0800:

> Hi Johan,
> 
> void nand_deselect_target(struct nand_chip *chip)
> {
> 	if (chip->legacy.select_chip)
> 		chip->legacy.select_chip(chip, -1);
> 
> 	chip->cur_cs = -1;
> }
> 
> I need add the code below and it work. 
> 
>    chip->legacy.select_chip = rk_nfc_select_chip;
> 
> But I found almost all nandc drivers do not add this code. Is there any other way to implement it?

Indeed, we don't accept new code we legacy bindings.

I don't understand what extra consumption you are trying to avoid,
because if it is the NAND device itself that is able to save power when
it gets unselected, it's really none of you controller's business.

Perhaps it's the time to focus on the controller support and tune the
code base later in a bid to reduce consumption.

Thanks,
Miquèl

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com>
To: 赵仪峰 <yifeng.zhao@rock-chips.com>
Cc: devicetree <devicetree@vger.kernel.org>,
	HeikoStübner <heiko@sntech.de>, richard <richard@nod.at>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-rockchip <linux-rockchip@lists.infradead.org>,
	robh+dt <robh+dt@kernel.org>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	"Johan Jonker" <jbx6244@gmail.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	vigneshr <vigneshr@ti.com>
Subject: Re: [PATCH v13 2/8] mtd: rawnand: rockchip: NFC drivers for RK3308, RK2928 and others
Date: Mon, 2 Nov 2020 08:32:58 +0100	[thread overview]
Message-ID: <20201102083258.3a748c44@xps13> (raw)
In-Reply-To: <20201102114503679684135@rock-chips.com>

Hello,

赵仪峰 <yifeng.zhao@rock-chips.com> wrote on Mon, 2 Nov 2020 11:46:04
+0800:

> Hi Johan,
> 
> void nand_deselect_target(struct nand_chip *chip)
> {
> 	if (chip->legacy.select_chip)
> 		chip->legacy.select_chip(chip, -1);
> 
> 	chip->cur_cs = -1;
> }
> 
> I need add the code below and it work. 
> 
>    chip->legacy.select_chip = rk_nfc_select_chip;
> 
> But I found almost all nandc drivers do not add this code. Is there any other way to implement it?

Indeed, we don't accept new code we legacy bindings.

I don't understand what extra consumption you are trying to avoid,
because if it is the NAND device itself that is able to save power when
it gets unselected, it's really none of you controller's business.

Perhaps it's the time to focus on the controller support and tune the
code base later in a bid to reduce consumption.

Thanks,
Miquèl

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-11-02  7:33 UTC|newest]

Thread overview: 95+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-28  9:53 [PATCH v13 0/8] Add Rockchip NFC drivers for RK3308 and others Yifeng Zhao
2020-10-28  9:53 ` Yifeng Zhao
2020-10-28  9:53 ` Yifeng Zhao
2020-10-28  9:53 ` [PATCH v13 1/8] dt-bindings: mtd: Describe Rockchip RK3xxx NAND flash controller Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:53 ` [PATCH v13 2/8] mtd: rawnand: rockchip: NFC drivers for RK3308, RK2928 and others Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28 10:48   ` Miquel Raynal
2020-10-28 10:48     ` Miquel Raynal
2020-10-28 10:48     ` Miquel Raynal
2020-10-28 10:48     ` Miquel Raynal
2020-10-30 10:12     ` 赵仪峰
2020-10-30 10:12       ` 赵仪峰
2020-10-30 10:12       ` 赵仪峰
2020-10-30 10:12       ` 赵仪峰
2020-10-30 10:26       ` Miquel Raynal
2020-10-30 10:26         ` Miquel Raynal
2020-10-30 10:26         ` Miquel Raynal
2020-10-30 10:26         ` Miquel Raynal
2020-10-31 11:58   ` Johan Jonker
2020-10-31 11:58     ` Johan Jonker
2020-10-31 11:58     ` Johan Jonker
2020-10-31 11:58     ` Johan Jonker
2020-10-31 13:45     ` Johan Jonker
2020-10-31 13:45       ` Johan Jonker
2020-10-31 13:45       ` Johan Jonker
2020-10-31 13:45       ` Johan Jonker
2020-11-02  3:46       ` 赵仪峰
2020-11-02  3:46         ` 赵仪峰
2020-11-02  3:46         ` 赵仪峰
2020-11-02  3:46         ` 赵仪峰
2020-11-02  7:32         ` Miquel Raynal [this message]
2020-11-02  7:32           ` Miquel Raynal
2020-11-02  7:32           ` Miquel Raynal
2020-11-02  7:32           ` Miquel Raynal
2020-11-02  8:14           ` 赵仪峰
2020-11-02  8:14             ` 赵仪峰
2020-11-02  8:14             ` 赵仪峰
2020-11-02  8:14             ` 赵仪峰
2020-11-02  8:20             ` Miquel Raynal
2020-11-02  8:20               ` Miquel Raynal
2020-11-02  8:20               ` Miquel Raynal
2020-11-02  8:20               ` Miquel Raynal
     [not found]     ` <e02e13a0-769d-6b73-c87e-5b7d75fd4254@rock-chips.com>
2020-11-02 12:57       ` Johan Jonker
2020-11-02 12:57         ` Johan Jonker
2020-11-02 12:57         ` Johan Jonker
2020-11-02 12:57         ` Johan Jonker
2020-11-02 13:07         ` Miquel Raynal
2020-11-02 13:07           ` Miquel Raynal
2020-11-02 13:07           ` Miquel Raynal
2020-11-02 13:07           ` Miquel Raynal
2020-11-02 13:11           ` Johan Jonker
2020-11-02 13:11             ` Johan Jonker
2020-11-02 13:11             ` Johan Jonker
2020-11-02 13:11             ` Johan Jonker
2020-11-02 16:31             ` Johan Jonker
2020-11-02 16:31               ` Johan Jonker
2020-11-02 16:31               ` Johan Jonker
2020-11-02 16:31               ` Johan Jonker
2020-11-02 17:00               ` Miquel Raynal
2020-11-02 17:00                 ` Miquel Raynal
2020-11-02 17:00                 ` Miquel Raynal
2020-11-02 17:00                 ` Miquel Raynal
2020-11-02 17:11                 ` Johan Jonker
2020-11-02 17:11                   ` Johan Jonker
2020-11-02 17:11                   ` Johan Jonker
2020-11-02 17:11                   ` Johan Jonker
2020-11-04  7:30                   ` 赵仪峰
2020-11-04  7:30                     ` 赵仪峰
2020-11-04  7:30                     ` 赵仪峰
2020-11-04  7:30                     ` 赵仪峰
2020-11-04  7:34     ` 赵仪峰
2020-11-04  7:34       ` 赵仪峰
2020-11-04  7:34       ` 赵仪峰
2020-11-04  7:34       ` 赵仪峰
2020-10-28  9:53 ` [PATCH v13 3/8] MAINTAINERS: add maintainers to ROCKCHIP NFC Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:53 ` [PATCH v13 4/8] arm64: dts: rockchip: Add NFC node for RK3308 SoC Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:53   ` Yifeng Zhao
2020-10-28  9:54 ` [PATCH v13 5/8] arm64: dts: rockchip: Add NFC node for PX30 SoC Yifeng Zhao
2020-10-28  9:54   ` Yifeng Zhao
2020-10-28  9:54   ` Yifeng Zhao
2020-10-28  9:54   ` [PATCH v13 6/8] arm: dts: rockchip: Add NFC node for RV1108 SoC Yifeng Zhao
2020-10-28  9:54     ` Yifeng Zhao
2020-10-28  9:54     ` Yifeng Zhao
2020-10-28  9:54   ` [PATCH v13 7/8] arm: dts: rockchip: Add NFC node for RK2928 and other SoCs Yifeng Zhao
2020-10-28  9:54     ` Yifeng Zhao
2020-10-28  9:54     ` Yifeng Zhao
2020-10-28  9:54   ` [PATCH v13 8/8] arm: dts: rockchip: Add NFC node for RK3036 SoC Yifeng Zhao
2020-10-28  9:54     ` Yifeng Zhao
2020-10-28  9:54     ` Yifeng Zhao

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