From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 731B7C04AAA for ; Fri, 3 May 2019 14:29:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4506F2087F for ; Fri, 3 May 2019 14:29:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727662AbfECO2w (ORCPT ); Fri, 3 May 2019 10:28:52 -0400 Received: from smtp-out.xnet.cz ([178.217.244.18]:59218 "EHLO smtp-out.xnet.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725283AbfECO1a (ORCPT ); Fri, 3 May 2019 10:27:30 -0400 Received: from meh.true.cz (meh.true.cz [108.61.167.218]) (Authenticated sender: petr@true.cz) by smtp-out.xnet.cz (Postfix) with ESMTPSA id 9A93A4AC5; Fri, 3 May 2019 16:27:24 +0200 (CEST) Received: by meh.true.cz (OpenSMTPD) with ESMTP id eb006926; Fri, 3 May 2019 16:27:23 +0200 (CEST) From: =?UTF-8?q?Petr=20=C5=A0tetiar?= To: netdev@vger.kernel.org, devicetree@vger.kernel.org, Matthias Brugger Cc: Andrew Lunn , Florian Fainelli , Heiner Kallweit , Frank Rowand , Srinivas Kandagatla , Maxime Ripard , =?UTF-8?q?Petr=20=C5=A0tetiar?= , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH v4 00/10] of_net: Add NVMEM support to of_get_mac_address Date: Fri, 3 May 2019 16:27:05 +0200 Message-Id: <1556893635-18549-1-git-send-email-ynezz@true.cz> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, this patch series is a continuation of my previous attempt[1], where I've tried to wire MTD layer into of_get_mac_address, so it would be possible to load MAC addresses from various NVMEMs as EEPROMs etc. Predecessor of this patch which used directly MTD layer has originated in OpenWrt some time ago and supports already about 497 use cases in 357 device tree files. During the review process of my 1st attempt I was told, that I shouldn't be using MTD directly, but that I should rather use new NVMEM subsystem and during the review process of v2 I was told, that I should handle EPROBE_DEFFER error as well, during the review process of v3 I was told, that returning pointer/NULL/ERR_PTR is considered as wrong API design, so this v4 patch series tries to accommodate all this previous remarks. First patch is wiring NVMEM support directly into of_get_mac_address as it's obvious, that adding support for NVMEM into every other driver would mean adding a lot of repetitive code. This patch allows us to configure MAC addresses in various devices like ethernet and wireless adapters directly from of_get_mac_address, which is used by quite a lot of drivers in the tree already. Second patch is simply updating documentation with NVMEM bits, and cleaning up all current binding documentation referencing any of the MAC address related properties. Third and fourth patches are simply removing duplicate NVMEM code which is no longer needed as the first patch has wired NVMEM support directly into of_get_mac_address. Patches 5-10 are converting all current users of of_get_mac_address to the new ERR_PTR encoded error value, as of_get_mac_address could now return valid pointer, NULL and ERR_PTR. Just for a better picture, this patch series and one simple patch[2] on top of it, allows me to configure 8Devices Carambola2 board's MAC addresses with following DTS (simplified): &spi { flash@0 { partitions { art: partition@ff0000 { label = "art"; reg = <0xff0000 0x010000>; read-only; nvmem-cells { compatible = "nvmem-cells"; #address-cells = <1>; #size-cells = <1>; eth0_addr: eth-mac-addr@0 { reg = <0x0 0x6>; }; eth1_addr: eth-mac-addr@6 { reg = <0x6 0x6>; }; wmac_addr: wifi-mac-addr@1002 { reg = <0x1002 0x6>; }; }; }; }; }; }; ð0 { nvmem-cells = <ð0_addr>; nvmem-cell-names = "mac-address"; }; ð1 { nvmem-cells = <ð1_addr>; nvmem-cell-names = "mac-address"; }; &wmac { nvmem-cells = <&wmac_addr>; nvmem-cell-names = "mac-address"; }; 1. https://patchwork.ozlabs.org/patch/1086628/ 2. https://patchwork.ozlabs.org/patch/890738/ -- ynezz Petr Štetiar (10): of_net: add NVMEM support to of_get_mac_address dt-bindings: doc: reflect new NVMEM of_get_mac_address behaviour net: macb: support of_get_mac_address new ERR_PTR error net: davinci: support of_get_mac_address new ERR_PTR error net: ethernet: support of_get_mac_address new ERR_PTR error net: usb: support of_get_mac_address new ERR_PTR error net: wireless: support of_get_mac_address new ERR_PTR error staging: octeon-ethernet: support of_get_mac_address new ERR_PTR error ARM: Kirkwood: support of_get_mac_address new ERR_PTR error powerpc: tsi108: support of_get_mac_address new ERR_PTR error .../devicetree/bindings/net/altera_tse.txt | 5 +- Documentation/devicetree/bindings/net/amd-xgbe.txt | 5 +- .../devicetree/bindings/net/brcm,amac.txt | 4 +- Documentation/devicetree/bindings/net/cpsw.txt | 4 +- .../devicetree/bindings/net/davinci_emac.txt | 5 +- Documentation/devicetree/bindings/net/dsa/dsa.txt | 5 +- Documentation/devicetree/bindings/net/ethernet.txt | 6 ++- .../devicetree/bindings/net/hisilicon-femac.txt | 4 +- .../bindings/net/hisilicon-hix5hd2-gmac.txt | 4 +- .../devicetree/bindings/net/keystone-netcp.txt | 10 ++-- Documentation/devicetree/bindings/net/macb.txt | 5 +- .../devicetree/bindings/net/marvell-pxa168.txt | 4 +- .../devicetree/bindings/net/microchip,enc28j60.txt | 3 +- .../devicetree/bindings/net/microchip,lan78xx.txt | 5 +- .../devicetree/bindings/net/qca,qca7000.txt | 4 +- .../devicetree/bindings/net/samsung-sxgbe.txt | 4 +- .../bindings/net/snps,dwc-qos-ethernet.txt | 5 +- .../bindings/net/socionext,uniphier-ave4.txt | 4 +- .../devicetree/bindings/net/socionext-netsec.txt | 5 +- .../bindings/net/wireless/mediatek,mt76.txt | 5 +- .../devicetree/bindings/net/wireless/qca,ath9k.txt | 4 +- arch/arm/mach-mvebu/kirkwood.c | 3 +- arch/powerpc/sysdev/tsi108_dev.c | 2 +- drivers/net/ethernet/aeroflex/greth.c | 2 +- drivers/net/ethernet/allwinner/sun4i-emac.c | 2 +- drivers/net/ethernet/altera/altera_tse_main.c | 2 +- drivers/net/ethernet/arc/emac_main.c | 2 +- drivers/net/ethernet/aurora/nb8800.c | 2 +- drivers/net/ethernet/broadcom/bcmsysport.c | 2 +- drivers/net/ethernet/broadcom/bgmac-bcma.c | 2 +- drivers/net/ethernet/broadcom/bgmac-platform.c | 2 +- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 2 +- drivers/net/ethernet/cadence/macb_main.c | 12 ++--- drivers/net/ethernet/cavium/octeon/octeon_mgmt.c | 2 +- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 2 +- drivers/net/ethernet/davicom/dm9000.c | 2 +- drivers/net/ethernet/ethoc.c | 2 +- drivers/net/ethernet/ezchip/nps_enet.c | 2 +- drivers/net/ethernet/freescale/fec_main.c | 2 +- drivers/net/ethernet/freescale/fec_mpc52xx.c | 2 +- drivers/net/ethernet/freescale/fman/mac.c | 2 +- .../net/ethernet/freescale/fs_enet/fs_enet-main.c | 2 +- drivers/net/ethernet/freescale/gianfar.c | 2 +- drivers/net/ethernet/freescale/ucc_geth.c | 2 +- drivers/net/ethernet/hisilicon/hisi_femac.c | 2 +- drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 +- drivers/net/ethernet/lantiq_xrx200.c | 2 +- drivers/net/ethernet/marvell/mv643xx_eth.c | 2 +- drivers/net/ethernet/marvell/mvneta.c | 2 +- drivers/net/ethernet/marvell/pxa168_eth.c | 2 +- drivers/net/ethernet/marvell/sky2.c | 2 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +- drivers/net/ethernet/micrel/ks8851.c | 2 +- drivers/net/ethernet/micrel/ks8851_mll.c | 2 +- drivers/net/ethernet/microchip/enc28j60.c | 2 +- drivers/net/ethernet/nxp/lpc_eth.c | 2 +- drivers/net/ethernet/qualcomm/qca_spi.c | 2 +- drivers/net/ethernet/qualcomm/qca_uart.c | 2 +- drivers/net/ethernet/renesas/ravb_main.c | 2 +- drivers/net/ethernet/renesas/sh_eth.c | 2 +- .../net/ethernet/samsung/sxgbe/sxgbe_platform.c | 2 +- drivers/net/ethernet/socionext/sni_ave.c | 2 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/ethernet/ti/cpsw.c | 2 +- drivers/net/ethernet/ti/davinci_emac.c | 16 +++---- drivers/net/ethernet/ti/netcp_core.c | 2 +- drivers/net/ethernet/wiznet/w5100.c | 2 +- drivers/net/ethernet/xilinx/ll_temac_main.c | 2 +- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 2 +- drivers/net/ethernet/xilinx/xilinx_emaclite.c | 2 +- drivers/net/usb/smsc75xx.c | 2 +- drivers/net/usb/smsc95xx.c | 2 +- drivers/net/wireless/ath/ath9k/init.c | 2 +- drivers/net/wireless/mediatek/mt76/eeprom.c | 2 +- drivers/net/wireless/ralink/rt2x00/rt2x00dev.c | 2 +- drivers/of/of_net.c | 54 ++++++++++++++++++++-- drivers/staging/octeon/ethernet.c | 2 +- net/ethernet/eth.c | 2 +- 78 files changed, 175 insertions(+), 116 deletions(-) -- 1.9.1