From patchwork Thu May 9 16:29:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume LA ROQUE X-Patchwork-Id: 1097572 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="GTmpYoVk"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 450JhN5R0fz9s4V for ; Fri, 10 May 2019 02:29:24 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727393AbfEIQ3Y (ORCPT ); Thu, 9 May 2019 12:29:24 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:36334 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727382AbfEIQ3Y (ORCPT ); Thu, 9 May 2019 12:29:24 -0400 Received: by mail-wr1-f66.google.com with SMTP id o4so3937017wra.3 for ; Thu, 09 May 2019 09:29:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=xnUcq849ljF3W1PVVaGBumjDSyHUcTVt7HVj2vrbpqs=; b=GTmpYoVkiFD9q5dllN+UTANfhfNppEO9k9r2mtPKdiNTKlSo2/K11Kc1DoLO3pzGzo +8oadDWMMF73u7uqsEZVKantnFEz5I1jvg8q9diJ6h67xa9PwPRxZeqN9qzkghbTPqKl Ejxg9meqYwvs8CCfmixifG+k1qEOibJwAnoXDZK57nBxIMlP4YQG/mYlfIVdmMxX9dWU MppYB4r7h8KEEcJBJndg79YL+AZwelfMkzB3PCvXTx5vdbxegozXDdM4wuWT2uw1nlZd ImyV2grmhzXcCDroeRpOWDhTsWt1pRy5VwtgGikKnh7mlrZDfohpGp1+5w9OPq0yooKl 270A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=xnUcq849ljF3W1PVVaGBumjDSyHUcTVt7HVj2vrbpqs=; b=Nu3otDZPzuBl4PfxlMeoCQ2WhaXN8v/464n5h0HxgPaf0/0ykQsssvMg9lWVHGQCNK kOzYhPg2lKkRCbxxmLb0gN7CIHLRtIW+1JfcblwWSgELFF9+RU22J8HXqcvQ0eBoqp49 MOX5fsR0VVr8XbpBwPlsmbzA+GbgxSOjYcJOYgvx+usjJXYzKIhisijAikzndHV1aOOn MDGV/mJb/huN/lv52hPkh+/G6ftxTd3c5ok/r5+GKki5orTPgNHzHdwRl7eVVOufI8Rc iBiB3yorGIe0EWpSKm1TSzRrFBPkeq4VvfNTS0DG6Ligh0tBVqfxpA7WLPo5P1Zr7Atn kwMg== X-Gm-Message-State: APjAAAVGarRHH71zFynId+5aO8uIhWxwaDcdf+Ed0hrrfqWnti7t+Iho Y4KIxr03R4D8L8M0PRucSs0jyg== X-Google-Smtp-Source: APXvYqyiMcEGk177HRPJlCRGpEKkfOvFY/t5LFvZZuyi6ApMgWQ/TqSREiCeGqHv1iD451gqV5gHBQ== X-Received: by 2002:a5d:4a92:: with SMTP id o18mr3791996wrq.80.1557419362487; Thu, 09 May 2019 09:29:22 -0700 (PDT) Received: from glaroque-ThinkPad-T480.home ([2a01:cb1d:379:8b00:1910:6694:7019:d3a]) by smtp.gmail.com with ESMTPSA id k2sm4116297wrg.22.2019.05.09.09.29.21 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 May 2019 09:29:21 -0700 (PDT) From: Guillaume La Roque To: linus.walleij@linaro.org, khilman@baylibre.com Cc: jbrunet@baylibre.com, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/6] Add drive-strength in Meson pinctrl driver Date: Thu, 9 May 2019 18:29:14 +0200 Message-Id: <20190509162920.7054-1-glaroque@baylibre.com> X-Mailer: git-send-email 2.17.1 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The purpose of this patchset is to add drive-strength support in meson pinconf driver. This is a new feature that was added on the g12a. It is critical for us to support this since many functions are failing with default pad drive-strength. The value achievable by the SoC are 0.5mA, 2.5mA, 3mA and 4mA and the DT property 'drive-strength' is expressed in mA. So this patch add another generic property "drive-strength-uA". The change to do so would be minimal and could be benefit to other platforms later on. Cheers Guillaume Changes since v3: - remove dev_err in meson_get_drive_strength - cleanup code Changes since v2: - update driver-strength-uA property to be compliant with DT documentation - rework patch series for better understanding - rework set_bias function Changes since v1: - fix missing break - implement new pinctrl generic property "drive-strength-uA" [1] https://lkml.kernel.org/r/20190314163725.7918-1-jbrunet@baylibre.com Guillaume La Roque (6): dt-bindings: pinctrl: add a 'drive-strength-microamp' property pinctrl: generic: add new 'drive-strength-microamp' property support dt-bindings: pinctrl: meson: Add drive-strength-microamp property pinctrl: meson: Rework enable/disable bias part pinctrl: meson: add support of drive-strength-microamp pinctrl: meson: g12a: add DS bank value .../bindings/pinctrl/meson,pinctrl.txt | 4 + .../bindings/pinctrl/pinctrl-bindings.txt | 3 + drivers/pinctrl/meson/pinctrl-meson-g12a.c | 36 ++-- drivers/pinctrl/meson/pinctrl-meson.c | 180 ++++++++++++++---- drivers/pinctrl/meson/pinctrl-meson.h | 18 +- drivers/pinctrl/pinconf-generic.c | 2 + include/linux/pinctrl/pinconf-generic.h | 3 + 7 files changed, 193 insertions(+), 53 deletions(-)