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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB89BC433FE for ; Sat, 29 Jan 2022 11:57:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242034AbiA2L5h (ORCPT ); Sat, 29 Jan 2022 06:57:37 -0500 Received: from mout.gmx.net ([212.227.15.15]:42461 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241314AbiA2L5e (ORCPT ); Sat, 29 Jan 2022 06:57:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1643457444; bh=LQ/D/czaqWi5t/2mji1EXwKk67vZOE9T5soDAh7nwmA=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date; b=SO1nnQnA8zBwlraHeZbETYGKO/KujBtjPsWAxdD90eZ80L9vJ/LkoE/kcNPe4u7fw 3uMbJFDlpZWEBJLukDMeZr3eUjWVog2a2A3fMhZ28QuPI0EdaQpvPR9gSu56nWKz4W vGHrKrq1al+R4C+Mx85odoxQW+nRwGY5wuqkbSYg= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([5.146.194.160]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N1OXZ-1mGok32OAl-012psc; Sat, 29 Jan 2022 12:57:24 +0100 From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: Linus Walleij , Rob Herring , openbmc@lists.ozlabs.org, Tomer Maimon , Joel Stanley , linux-kernel@vger.kernel.org, Andy Shevchenko , Avi Fishman , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= Subject: [PATCH v5 0/9] Nuvoton WPCM450 pinctrl and GPIO driver Date: Sat, 29 Jan 2022 12:52:19 +0100 Message-Id: <20220129115228.2257310-1-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:2IjlardMyLFrtr1FjGEBDyjH8nrE1nBJ6Ibpk0PAWi2YuMn5zMr JwFMIl83ycDgQgzkSra47Gyd7Lr4e+YhaxsE/yATZdDJGxwzDcyPVbOr712A4jx5NUfOoOn VwnKHMOYn2xmiCV6xhpHiEgPkxeMF1y4lW/9Ne8WGyoTB1x0r78STkTOhnXnjh54aQ/rXaD E99XVcYLpfLV64QoGDUrQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:5Qbvq6uQgQI=:PPBL8jJ0sH0pa73bp4hEs1 3qiJPWjyIU4f4si9otbCG4AVXN9P2MMoG3RyIOMBedNUJbBINjMLWPeWq/U38Ym8IqdH4mLFR MUoX/Rk2USPppNWz/SNL8GoQ9cRPlDxadeSxXn0bLuTYS525fmwe7mIN/gW9MDD0Gs/su0Nv7 swvXGxRPuXCtJlsVjwRMBjoZIT3SBwnehk5O/l7UhcliBfOL54WjP9DVUqejrK+MdVNdnro4k QLfZ1hzS1ETWoRsZ0Xu6dTvzrY0x5GJKf5nRfWaEIrXU0W+mAVk4bmKVz+Gd+x/p5rgZxWzOa RYhzXA22tUqpro1SQr1nU+gAhCA55r5Byck08gg0I5VbrYfy9XUPrSbCyvUfYimVow75Gprhv /JZz9xzWZsM92tEM8x4/m1PPBIpuGBeAAf2ZtDEaii5DVUNcDNudpOjsBzKAx806BECi4A36E VO/Rehii6gHE7ul5i6U48TKSq+Ci8eKbTSrplaBvoJcgQRk/q3hN+JvBZootTodzLweKKlBER v3cA+HijpaPXbtY84ro7hWOE+Al/FjktJ9syv0ms9BAdUqjXxC+LjT3XJ9OL/sbj4fFoSTnXo kzEyoH8ICQ8GfN7Rb0O/IvAuX4JzKouzBfua7HazBGbKvcJcGl+fzHYofIypOfPIhcWbiTuVh 0tki4KKk/PMFDw2PCNt3kc5SGa5A6DxK/xsKM23lmwRCPX9CQApnZkwBFlcyK+OHnLQ59UKV5 neREFgbk4dkPJqoeFJUVWy394DZD4j5JW7CxfPkdEf2jY184yHUFnOouCXDnkT4EMlChzqAwu U1MdBZiVHeBU8i4UXEyG1v6AszPdPC+wsPxsPnNBA5WiAbJXBktD3N9j+yLqJYnZ3UlP4iMzv E9Qwdw3S6a5NiNtT8f6QmIFDpCwFD32FFz2WkcNztFFDNqXo5fJCOc04M872MEw0FnQ58ih5H O2z2g1eurLPtm/iMVuLqjUDuqELoSEw6uYXEjTKb8psg9JMVcmZAAtdtKgzISsSe/FFQs5mPR Yr1eSagTK0vGCi56mQ4zdnK17gSrE4jM14nUZempjGBOXWBqE8T6IqmaZmNFlHvVBOh0nYnoR dmt+1gtDNpbmac= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is version 5 of the WPCM450 pinctrl/GPIO driver patchset. I was originally just going to rebase the patchset on top of v5.17-rc1, but while testing, I found that the IRQ handling code violated locking rules, specifically that it used spin locks (which can sleep on RT kernels= ) in IRQ contexts. So I made a few changes to fix that, mainly switching to raw spin locks. Best regards, Jonathan Neusch=C3=A4fer v4: https://lore.kernel.org/lkml/20220109173000.1242703-1-j.neuschaefer@gm= x.net/ v3: https://lore.kernel.org/lkml/20211224200935.93817-1-j.neuschaefer@gmx.= net/ v2: https://lore.kernel.org/lkml/20211207210823.1975632-1-j.neuschaefer@gm= x.net/ v1: - https://lore.kernel.org/lkml/20210602120329.2444672-1-j.neuschaefer@gmx.= net/ > This series adds support for pinctrl and GPIO in the Nuvoton WPCM450 SoC= . > Both my DT bindings and my driver are based on the work done by others f= or > the newer Nuvoton NPCM7xx SoC, and I've tried to keep both similar. > > Instead of extending the pinctrl-npcm7xx driver to add WPCM450 support, > I copied/forked it. The pinmux mechanism is very similar (using MFSEL1 a= nd > MFSEL2 registers), but the GPIO register interface has been redesigned f= or > NPCM7xx; adding support for the older GPIO controller would make the dri= ver > harder to understand, while only enabling a small amount of code sharing= . > > The DT binding in YAML format might make a good template for also conver= ting > the nuvoton,npcm7xx-pinctrl binding to YAML. > > Both in the DT binding and in the driver I kept the name "pinctrl". For = the > driver, I find it accurate enough because it handles pinctrl and GPIO. F= or > the DT node, it's a bit less accurate because the register block at 0xb8= 003000 > is about GPIOs, and pin control happens in the global control registers = (GCR) > block, except for input debouncing. So, "GPIO" might be the more appropr= iate > name component there. Jonathan Neusch=C3=A4fer (9): dt-bindings: arm/npcm: Add binding for global control registers (GCR) MAINTAINERS: Match all of bindings/arm/npcm/ as part of NPCM architecture ARM: dts: wpcm450: Add global control registers (GCR) node dt-bindings: pinctrl: Add Nuvoton WPCM450 pinctrl: nuvoton: Add driver for WPCM450 ARM: dts: wpcm450: Add pinctrl and GPIO nodes ARM: dts: wpcm450: Add pin functions ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons ARM: dts: wpcm450: Add pinmux information to UART0 .../bindings/arm/npcm/nuvoton,gcr.yaml | 48 + .../pinctrl/nuvoton,wpcm450-pinctrl.yaml | 160 +++ MAINTAINERS | 2 + .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 43 + arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 384 ++++++ drivers/pinctrl/Makefile | 2 +- drivers/pinctrl/nuvoton/Kconfig | 18 + drivers/pinctrl/nuvoton/Makefile | 1 + drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 1150 +++++++++++++++++ 9 files changed, 1807 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr= .yaml create mode 100644 Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm= 450-pinctrl.yaml create mode 100644 drivers/pinctrl/nuvoton/pinctrl-wpcm450.c =2D- 2.34.1