From patchwork Mon Feb 17 15:48:36 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13978371 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 10067C021A9 for ; Mon, 17 Feb 2025 17:10:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=wtxXp9w2f/J0f6mWEaq0vcPmmD3bdGJybeAi4zchJTE=; b=Bko2/+q/QjyfpTC/Ax01VlYDwE ugiVAQkKFboaSscjjKbv8kIet68w3OImvrvzw6TK7TNdWVkNNCtQXiWmfGmtQ/jDWwnhKr39zGMfH IDhQ71AMwstOwYaLdofSekQbmQsp7xllyIaJ3tdc04JwPbSGjGx2ekWzHvxXUGBSJ0yfAsc6wY1lN 1hT8tObC5A5N7X8DHm7Qa46ekAvxzqzbmf/iK2M9oB6Ms+b5bVOmNHdbDUGM2KbBKXoEHFwndt7sN iG16mPrrel6A3figOA7BMuT8N9J+EzwaSzFmM0rah1cGf1DRmeCYpvtO6aqxXoIVEhmyH7BIZWtq6 76VOER5g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tk4d9-00000005PA3-0kkC; Mon, 17 Feb 2025 17:10:03 +0000 Received: from bali.collaboradmins.com ([148.251.105.195]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tk3O3-000000058jc-07ei; Mon, 17 Feb 2025 15:50:24 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1739807421; bh=AQORTGEMJRTeOzgv2ykstrnHNuBXQ26g7MQ0Fgeka9U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SzvRfy6ZQONbwRZseCTd/qCY7RuJC4UB+shUIvg0Khs7nJiydSU1+hJry2rGmR5tw R6D8ddUHGrBllZDZiSpgzoliaVf0HQbZ0GEHAzXEhAxoaIy9ycMovZOI/5Q2oJRTwV c1wShv8q4z+/7EwNYJBb+2qk4J/cWYONbmv4ss3CZylqoVZfeftOg4Oq1B10nPxKx8 V8HKzXMfgQWIRDWKckRK3frVokC7eLL3coJUsAnWX66AlRT+bZWe19bfRCBKI9EmhH WigkB6Bj9IrqH2anWw+p9WXO6GIfENJMa2R7yxpYo2IzXmnMDaDu2yXJXecWN+wV5U k8BKruPfNSHqw== Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id 588CB17E155A; Mon, 17 Feb 2025 16:50:20 +0100 (CET) From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, ck.hu@mediatek.com, jitao.shi@mediatek.com, jie.qiu@mediatek.com, junzhi.zhao@mediatek.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com, dmitry.baryshkov@linaro.org, lewis.liao@mediatek.com, ives.chenjh@mediatek.com, tommyyl.chen@mediatek.com, jason-jh.lin@mediatek.com, Krzysztof Kozlowski Subject: [PATCH v7 43/43] drm/mediatek/hdmi: Use syscon_regmap_lookup_by_phandle_args Date: Mon, 17 Feb 2025 16:48:36 +0100 Message-ID: <20250217154836.108895-44-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250217154836.108895-1-angelogioacchino.delregno@collabora.com> References: <20250217154836.108895-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250217_075023_247998_C4B4655B X-CRM114-Status: UNSURE ( 9.52 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Krzysztof Kozlowski Use syscon_regmap_lookup_by_phandle_args() which is a wrapper over syscon_regmap_lookup_by_phandle() combined with getting the syscon argument. Except simpler code this annotates within one line that given phandle has arguments, so grepping for code would be easier. There is also no real benefit in printing errors on missing syscon argument, because this is done just too late: runtime check on static/build-time data. Dtschema and Devicetree bindings offer the static/build-time check for this already. Signed-off-by: Krzysztof Kozlowski [Angelo: Rebased over HDMIv2/DDCv2 series cleanups] Reviewed-by: CK Hu Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_hdmi_common.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c index 784bc05c9541..00a638a3caf4 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c @@ -269,12 +269,9 @@ static int mtk_hdmi_get_cec_dev(struct mtk_hdmi *hdmi, struct device *dev, struc * MMSYS_CONFIG device and the register offset of the HDMI_SYS_CFG * registers it contains. */ - hdmi->sys_regmap = syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi"); + hdmi->sys_regmap = syscon_regmap_lookup_by_phandle_args(np, "mediatek,syscon-hdmi", + 1, &hdmi->sys_offset); if (IS_ERR(hdmi->sys_regmap)) - return PTR_ERR(hdmi->sys_regmap); - - ret = of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1, &hdmi->sys_offset); - if (ret) return dev_err_probe(dev, ret, "Failed to get system configuration registers\n");