From patchwork Sat Dec 7 14:03:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Ravnborg X-Patchwork-Id: 11277401 X-Patchwork-Delegate: kieran@bingham.xyz 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 D3CD26C1 for ; Sat, 7 Dec 2019 14:04:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B2B9C24676 for ; Sat, 7 Dec 2019 14:04:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HqZQqzcX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726399AbfLGOE3 (ORCPT ); Sat, 7 Dec 2019 09:04:29 -0500 Received: from mail-lj1-f196.google.com ([209.85.208.196]:39515 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726425AbfLGOE2 (ORCPT ); Sat, 7 Dec 2019 09:04:28 -0500 Received: by mail-lj1-f196.google.com with SMTP id e10so10696953ljj.6; Sat, 07 Dec 2019 06:04:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=63FAYeXHOLWZvE39+BvFTQvx8rk1mNWwTMgVp4w9KIs=; b=HqZQqzcXLz6qqDnZBbtAncz09h4HHdF2Rkf9L00gHYZQMGeLF4pATtZsOyBRySDv3s Bl3agh2QBKbOWCqCed3xKaiQ1hIYC4wfRE3lkCWQUbcCp2hc82VNbjrgwBfWtPlyOUUj TJPJwwUs5scJ4AZ3yh3dgLIhOcFzhQCvGwbnLzxnHt909E9Zlma812SMN43OXAbuKxhA TH6UiuR0tJW2YyO2/ggmZGxM7VQ+KvuhI20nEw/+PuNfy6SuD4QeOEzWmGd6pbg/zb+1 IKovefo+w7fUJoUZPp71KIiPRelS6vNLmT9JDbi+oRq5TSvBn3wWF86rEoCCs2oWMu1x V6Sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=63FAYeXHOLWZvE39+BvFTQvx8rk1mNWwTMgVp4w9KIs=; b=JvJRMPjWK2HmoI98XNDr47hctZ8Z3llxdMDZ+SHlUqZpqKGPndb6j5FImOntS4cFV9 3GCxwn3OTLnTZKkat/elRfK3ERSitCW47k+eeXilslZOEaKcLLmsijXJ2aEaxKf30u6H rMoCzx2l6niGP1GtbOqmkVh9PVProjT5S+8jZEVDffaL+AcnV1aJS08yYgwqHXbgmfV4 UFaYSF3L1q4MatwhnwkPbGfy4bNygQ5fVglViZRGGHtS0HOCTxZV9dhQ214ZPaUrrqWh w5IT/XuI2IM4ZaZICwGPD1xktc2FnUtG2vQ0FGBZy7asssJhvC7yFbh/T1BAtobX1Yfn TdeQ== X-Gm-Message-State: APjAAAXl6aSoNd87hhvR5dwqO7rqHI+s7EQZS/WSLzU8Bv8EoZuy0IOI 1Jv9XFT4KAqlE4G6JKGCVMg= X-Google-Smtp-Source: APXvYqwCXvyDmoKVIc4zlBB2XBU0M9Y6CN9iEAOB/MhVUE9gB+QmdDrvfL6CdFab3+wa1LcGnDUevg== X-Received: by 2002:a2e:548:: with SMTP id 69mr11532790ljf.67.1575727466338; Sat, 07 Dec 2019 06:04:26 -0800 (PST) Received: from saturn.lan (18.158-248-194.customer.lyse.net. [158.248.194.18]) by smtp.gmail.com with ESMTPSA id w17sm5644188lfn.22.2019.12.07.06.04.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Dec 2019 06:04:25 -0800 (PST) From: Sam Ravnborg To: dri-devel@lists.freedesktop.org, Thierry Reding , Laurent Pinchart , Linus Walleij , Sam Ravnborg Cc: Abhinav Kumar , Andrzej Hajda , Benjamin Gaignard , Boris Brezillon , Daniel Vetter , David Airlie , Jagan Teki , Jitao Shi , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Maarten Lankhorst , Maxime Ripard , Neil Armstrong , NXP Linux Team , Pengutronix Kernel Team , Purism Kernel Team , Sean Paul , Stefan Agner , Tomi Valkeinen Subject: [PATCH v2 09/25] drm/panel: ilitek-ili9881c: use drm_panel backlight support Date: Sat, 7 Dec 2019 15:03:37 +0100 Message-Id: <20191207140353.23967-10-sam@ravnborg.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191207140353.23967-1-sam@ravnborg.org> References: <20191207140353.23967-1-sam@ravnborg.org> MIME-Version: 1.0 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Use the backlight support in drm_panel to simplify the driver Signed-off-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Cc: Thierry Reding Cc: Sam Ravnborg --- drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c index 31e5a4e67750..f54077c216a3 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c @@ -3,7 +3,6 @@ * Copyright (C) 2017-2018, Bootlin */ -#include #include #include #include @@ -25,7 +24,6 @@ struct ili9881c { struct drm_panel panel; struct mipi_dsi_device *dsi; - struct backlight_device *backlight; struct regulator *power; struct gpio_desc *reset; }; @@ -348,7 +346,6 @@ static int ili9881c_enable(struct drm_panel *panel) msleep(120); mipi_dsi_dcs_set_display_on(ctx->dsi); - backlight_enable(ctx->backlight); return 0; } @@ -357,7 +354,6 @@ static int ili9881c_disable(struct drm_panel *panel) { struct ili9881c *ctx = panel_to_ili9881c(panel); - backlight_disable(ctx->backlight); return mipi_dsi_dcs_set_display_off(ctx->dsi); } @@ -423,7 +419,6 @@ static const struct drm_panel_funcs ili9881c_funcs = { static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi) { - struct device_node *np; struct ili9881c *ctx; int ret; @@ -448,14 +443,9 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi) return PTR_ERR(ctx->reset); } - np = of_parse_phandle(dsi->dev.of_node, "backlight", 0); - if (np) { - ctx->backlight = of_find_backlight_by_node(np); - of_node_put(np); - - if (!ctx->backlight) - return -EPROBE_DEFER; - } + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) + return ret; ret = drm_panel_add(&ctx->panel); if (ret < 0) @@ -475,9 +465,6 @@ static int ili9881c_dsi_remove(struct mipi_dsi_device *dsi) mipi_dsi_detach(dsi); drm_panel_remove(&ctx->panel); - if (ctx->backlight) - put_device(&ctx->backlight->dev); - return 0; }