From patchwork Tue Feb 11 11:34:09 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: 13969696 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 25C83C0219D for ; Tue, 11 Feb 2025 12:36:56 +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=yxoFDpaLzb/m41THO79xbGShuGo2eaAhxppu0lfW020=; b=MHhGDgQpKQjgjX0hw78qWWyDjv e4zj4kET2IjJvrrg2uCqriqYSUD+eVRxigh+zX8Jukm9opO+qDn6D6RzciW4CdaGpxfuaWDpAOKgT vKGT9jMDTyeei+xT0y/w8cVHEumChTigdzMiZJgm8+pWVTQnQj8B6WnGK9/IaLZxjCUlqAeS/Py45 xLbKFkCjpCERvd3m36if6TiUzLqqR3mXT7BmUdzuvKY7Z/RnuIUwz/1V+yIL9TFgcLVGM0Jh2azc0 s7BuYCU1m5olp3DqUAf0lKzZC9wnMoblxPJsjJXiy91rymmAoAdzL0yKE426sOk8FtUCVxBCL82V+ ZT4ZpulA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1thpVX-00000003ne9-00D8; Tue, 11 Feb 2025 12:36:55 +0000 Received: from bali.collaboradmins.com ([148.251.105.195]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1thoXz-00000003ZMd-48gA; Tue, 11 Feb 2025 11:35:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1739273722; bh=xBlxWG96j/ussT7IHnmYGqG0ZUkOUgPdCbXo3xCR/uo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RJZCmoVLQfR2/hA/oMkM7wl4MTMPU4kOIJfY516xQFI9uyPvWUulOTZP5BRqpI/7s 9j8s/iwDYPb9ZVhmhJLRjQ9upmzpp0ZFxbLGoqmDE8d5kHEXoxCPNos4GGxkak6ov3 O2XbmNfvh2BN4ztvTWzNFrll314L2OlJ6xiCOcb4NQJGMXSRgY2UTnpynfjcvuJ5LB 6eisX59lln6iJhtiEoBeAYLgzS2KE+gute2bW/xHqOOOfHyPilBXULulH7NsNo0KGv LGxlaEFAX1m5p6P1qHsXYDjqf3aC+p2X7DMxCV9hPt43jI0/ijHzGsuf80BkEBJ4+p diUhaXyP9kXFA== 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 5DD0317E154C; Tue, 11 Feb 2025 12:35:21 +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 v6 42/42] drm/mediatek/hdmi: Use syscon_regmap_lookup_by_phandle_args Date: Tue, 11 Feb 2025 12:34:09 +0100 Message-ID: <20250211113409.1517534-43-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250211113409.1517534-1-angelogioacchino.delregno@collabora.com> References: <20250211113409.1517534-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250211_033524_193384_BF53C3BA X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=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] Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: CK Hu --- 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 750bcb45c33d..c9bf7085328c 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");