From patchwork Sat Oct 19 08:35:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 11199981 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8BA38112B for ; Sat, 19 Oct 2019 08:36:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 67418206C1 for ; Sat, 19 Oct 2019 08:36:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="AwGvW2qF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728297AbfJSIgN (ORCPT ); Sat, 19 Oct 2019 04:36:13 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:35097 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726796AbfJSIgM (ORCPT ); Sat, 19 Oct 2019 04:36:12 -0400 Received: by mail-wr1-f65.google.com with SMTP id l10so8128879wrb.2 for ; Sat, 19 Oct 2019 01:36:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=VXhFfTxJpOWfUV4uLITTpdbpqdC1NQz6QjTrt5AanH0=; b=AwGvW2qFwU4dQKW8lBPQ/vuxPkKv6boigxQ3TYodi8j7gdB94KMaRLHPKL/IYI6uJn 1CIGOUN2ylCd2HpuFctEyL1DoxZhu3AfASOYrSkE252SsLRUzo5SywovV49r4yzVsfv6 wqie+c7o139H5AKbInTkZ5dkRKmIJgNyF/ncbYxtrgkOuZb6cF/QiU6PbJjX+8PC4zQv gDqZ2Y2/aPGyq+sozGWoiqv+Xz4IUl67k4X0ixv2UiLNr14fSDGgwHxkSeSqZ2NzKyev /xJ9gxfoKX37xAdjGyo8ZogoPKFiRhyEPwZNLhzDv/5Yq2ZZ7+wwqHKQ0bpv6fRCpgP5 6iew== 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:mime-version :content-transfer-encoding; bh=VXhFfTxJpOWfUV4uLITTpdbpqdC1NQz6QjTrt5AanH0=; b=LaACwkLxZO7Prq6grDo6eAgt+kWrC3OJonbJ96/q+q81W8lp0rz4Ebh9c+/RBuVhO2 +gdwKv5lhZlwj+i7EHhsiy9oCIO0CLFGJtExmCsdx+WF1sa06vT7Hd+sLb11Dr0zsVio Zo/bXdjWE5sAu26hSI7KhwgJPLjTkMJV7dpB0bM2mMOb0Xeui77xU2f3cFy6oY3X9qJ7 A6M8GWI5nrUBErl8JqA9BGP0JWgW+FNffqrJw3cDm22C+xsn95zsNhDbxBSN6rtq+0Ze LT/cMHmIddubKInOo4ulx0fI5e2anbxEAEbp/vH2vxfUvvjKD+ibGvE6yPxJTT9JKpu8 zbHg== X-Gm-Message-State: APjAAAVcfrsrv4sFZjkg8f1L6KUmSgMW9LpEqEau2gzrRVLk5AoyixB1 ttTZ9fKDka5OFGD7+u0Ee9cP5g== X-Google-Smtp-Source: APXvYqzpywR6S9c9y4631jsXMMJsyUrRt6pwryDVgj7Rqg+mTZW63A7CSWbAN0HUSeu0YfSw4B8Tvw== X-Received: by 2002:adf:fe10:: with SMTP id n16mr11814058wrr.288.1571474169355; Sat, 19 Oct 2019 01:36:09 -0700 (PDT) Received: from debian-brgl.home ([2a01:cb1d:af:5b00:6d6c:8493:1ab5:dad7]) by smtp.gmail.com with ESMTPSA id u1sm7242627wmc.38.2019.10.19.01.36.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Oct 2019 01:36:08 -0700 (PDT) From: Bartosz Golaszewski To: Yoshinori Sato , Rich Felker , Lee Jones , Daniel Thompson , Jingoo Han , Bartlomiej Zolnierkiewicz , Linus Walleij , Andy Shevchenko , Jacopo Mondi Cc: linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 0/9] backlight: gpio: simplify the driver Date: Sat, 19 Oct 2019 10:35:47 +0200 Message-Id: <20191019083556.19466-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org From: Bartosz Golaszewski While working on my other series related to gpio-backlight[1] I noticed that we could simplify the driver if we made the only user of platform data use GPIO lookups and device properties. This series tries to do that. First two patches contain minor fixes. Third patch makes the driver explicitly drive the GPIO line. Fourth patch adds all necessary data structures to ecovec24. Patch 5/9 unifies much of the code for both pdata and non-pdata cases. Patches 6-7/9 remove unused platform data fields. Last two patches contain additional improvements for the GPIO backlight driver while we're already modifying it. I don't have access to this HW but hopefully this works. Only compile tested. [1] https://lkml.org/lkml/2019/6/25/900 v1 -> v2: - rebased on top of v5.3-rc1 and adjusted to the recent changes from Andy - added additional two patches with minor improvements v2 -> v3: - in patch 7/7: used initializers to set values for pdata and dev local vars v3 -> v4: - rebased on top of v5.4-rc1 - removed changes that are no longer relevant after commit ec665b756e6f ("backlight: gpio-backlight: Correct initial power state handling") - added patch 7/7 v4 -> v5: - in patch 7/7: added a comment replacing the name of the function being pulled into probe() v5 -> v6: - added a patch making the driver explicitly set the direction of the GPIO to output - added a patch removing a redundant newline Bartosz Golaszewski (9): backlight: gpio: remove unneeded include backlight: gpio: remove stray newline backlight: gpio: explicitly set the direction of the GPIO sh: ecovec24: add additional properties to the backlight device backlight: gpio: simplify the platform data handling sh: ecovec24: don't set unused fields in platform data backlight: gpio: remove unused fields from platform data backlight: gpio: use a helper variable for &pdev->dev backlight: gpio: pull gpio_backlight_initial_power_state() into probe arch/sh/boards/mach-ecovec24/setup.c | 33 +++-- drivers/video/backlight/gpio_backlight.c | 128 +++++++------------ include/linux/platform_data/gpio_backlight.h | 3 - 3 files changed, 69 insertions(+), 95 deletions(-)