From patchwork Sat Dec 7 14:03:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Ravnborg X-Patchwork-Id: 11277641 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 5676914BD for ; Sat, 7 Dec 2019 14:13:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3467924677 for ; Sat, 7 Dec 2019 14:13:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Q2O5sExm"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="U4xN8GN0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3467924677 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ravnborg.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=L65LjAkzgTcL/EGXhd93HqlSq7smv8SoKJS8nAxY/OY=; b=Q2O5sExm1zW1AH dZBmK/hQCrN9NLrYdGZQnA6UcIHFPgsRZkqYqWDiJYUuT+uvGlIhXaC1G5fYCaXPjwB3BMXHGkAlR gxU+DoF+fIhfJKhQO11Ok50qoUtXyQ49BRA0WUsYUz5XS8lmpOSSa/RmePZZbYgfLlFVkpCh3YzkA O2a+WhObaNV0QggCDYOeU8rdFOVT2qfqfj7UYtdDh10azkJw+GDv0pbaACsUE+Jjn+vQ4SNcTIx7J R4Voo2ncuoQDrHXcvCFLEE3TKBsybXjzDZIlNbSEE4hpvuzZYU+u1Bq0r48SJvZ9CQ532wesI1jhr paznZpGmq6no2PQM39Ww==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1idaps-0007yf-0t; Sat, 07 Dec 2019 14:13:28 +0000 Received: from mail-lj1-x242.google.com ([2a00:1450:4864:20::242]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1idahY-0005xL-EM; Sat, 07 Dec 2019 14:04:54 +0000 Received: by mail-lj1-x242.google.com with SMTP id r19so10734725ljg.3; Sat, 07 Dec 2019 06:04:52 -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=MB8F/gszf2cRKXpRo2VrQVMb2VRddLrgS3cljPlLt24=; b=U4xN8GN0VPGdaO0AWtyf6QNMU6m6GH++MkTsmxwi2KAjxIa1YJgJ8HSo/kVZ/oXAzn q83znx4fzd/G/OpFJmM6CAiN8Pgp0sCApYTH2XNHRcbDRklBLdWaY75dTGz3YrNod2VA RkaVGJC49ElYYqCRnVrHZunYO9+hDv9eBo931BevMWXMwqisYsqZDen0w3833qVKdgG9 s4fx3xuCFRmxJ5nHIgrOtwi22oS6HxZLNe+rnRUZh8C9XNOdtzIyv3NGUJT8er74Pdh0 WBvUy9rr9uNu8/DnprIlGZdSvditWsW7o3qXTjedfkIoteUK0Tphpvjdf74rklqpqMao kIvQ== 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=MB8F/gszf2cRKXpRo2VrQVMb2VRddLrgS3cljPlLt24=; b=JcRHIuanlr4vlq43YqeidRWSAFcVHTi0xNgbXnjxhXdcBbipR7qBO+Ak6zjmMC51Jw n8sgC7AHUcJxCl4FkGQgug360RJoVrz2Uxk6Y9QmYeZcUCgJ+HNJg/gJmo7pAwANt7dV hD0AtIrRl4t0BmnhTaT38JnhFRUd9GaTD+U/DMzmhZiecI0jHLq6Wx3+MXV2SxiGNPkg KyXXNbr0F3sMcEgB7x8pXrL1/KjtniAahAKBy9smSLHlVAoHz9A9TbjgKStOClXIyh81 pq4mecG4w9+2y7hHrwDh9GaGYHrpw8EM8PygLEMHaM5xJBVhSkSY8XggOj4nYknni7A0 ndvA== X-Gm-Message-State: APjAAAU9pXxw6bIMMQDtLV8IdRa7sCQ8m0mDCdikA8AXOTsFAR99T5Er XvWT0ifXQvZGNRTvxVwLQn0= X-Google-Smtp-Source: APXvYqx9J1DRR8LiccaW8h+Ak6WWGoNOve+yafSt4KrzKSCNMRhs/EjfonWGrZJnRRbGVrZODAwZ4Q== X-Received: by 2002:a2e:144b:: with SMTP id 11mr11535632lju.216.1575727490861; Sat, 07 Dec 2019 06:04:50 -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.22.2019.12.07.06.04.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Dec 2019 06:04:50 -0800 (PST) From: Sam Ravnborg To: dri-devel@lists.freedesktop.org, Thierry Reding , Laurent Pinchart , Linus Walleij , Sam Ravnborg Subject: [PATCH v2 23/25] drm/panel: sitronix-st7789v: use drm_panel backlight support Date: Sat, 7 Dec 2019 15:03:51 +0100 Message-Id: <20191207140353.23967-24-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191207_060452_602399_E9337D4F X-CRM114-Status: GOOD ( 12.44 ) X-Spam-Score: 0.4 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:242 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (sam.ravnborg[at]gmail.com) 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.2 FREEMAIL_FORGED_FROMDOMAIN 2nd level domains in From and EnvelopeFrom freemail headers are different X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , David Airlie , Stefan Agner , Andrzej Hajda , Benjamin Gaignard , linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Tomi Valkeinen , Jagan Teki , NXP Linux Team , Jitao Shi , Pengutronix Kernel Team , Maarten Lankhorst , Maxime Ripard , linux-mediatek@lists.infradead.org, Abhinav Kumar , linux-tegra@vger.kernel.org, Sean Paul , linux-arm-kernel@lists.infradead.org, Purism Kernel Team , linux-renesas-soc@vger.kernel.org, Boris Brezillon , Daniel Vetter Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.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 --- .../gpu/drm/panel/panel-sitronix-st7789v.c | 37 ++----------------- 1 file changed, 4 insertions(+), 33 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c index ebefe2f4c26b..cc02c54c1b2e 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c @@ -3,7 +3,6 @@ * Copyright (C) 2017 Free Electrons */ -#include #include #include #include @@ -116,7 +115,6 @@ struct st7789v { struct drm_panel panel; struct spi_device *spi; struct gpio_desc *reset; - struct backlight_device *backlight; struct regulator *power; }; @@ -323,12 +321,6 @@ static int st7789v_enable(struct drm_panel *panel) { struct st7789v *ctx = panel_to_st7789v(panel); - if (ctx->backlight) { - ctx->backlight->props.state &= ~BL_CORE_FBBLANK; - ctx->backlight->props.power = FB_BLANK_UNBLANK; - backlight_update_status(ctx->backlight); - } - return st7789v_write_command(ctx, MIPI_DCS_SET_DISPLAY_ON); } @@ -339,12 +331,6 @@ static int st7789v_disable(struct drm_panel *panel) ST7789V_TEST(ret, st7789v_write_command(ctx, MIPI_DCS_SET_DISPLAY_OFF)); - if (ctx->backlight) { - ctx->backlight->props.power = FB_BLANK_POWERDOWN; - ctx->backlight->props.state |= BL_CORE_FBBLANK; - backlight_update_status(ctx->backlight); - } - return 0; } @@ -370,7 +356,6 @@ static const struct drm_panel_funcs st7789v_drm_funcs = { static int st7789v_probe(struct spi_device *spi) { - struct device_node *backlight; struct st7789v *ctx; int ret; @@ -394,26 +379,15 @@ static int st7789v_probe(struct spi_device *spi) return PTR_ERR(ctx->reset); } - backlight = of_parse_phandle(spi->dev.of_node, "backlight", 0); - if (backlight) { - ctx->backlight = of_find_backlight_by_node(backlight); - of_node_put(backlight); - - 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) - goto err_free_backlight; + return ret; return 0; - -err_free_backlight: - if (ctx->backlight) - put_device(&ctx->backlight->dev); - - return ret; } static int st7789v_remove(struct spi_device *spi) @@ -422,9 +396,6 @@ static int st7789v_remove(struct spi_device *spi) drm_panel_remove(&ctx->panel); - if (ctx->backlight) - put_device(&ctx->backlight->dev); - return 0; }