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: 13970072 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 B96DCC0219B for ; Tue, 11 Feb 2025 12:37:05 +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=ILLDDMyTkBLKy13aTyjEd/1CcX 8RHLY3Uk7R9XBYB62o0AAnCqE7zZM62TrSpRhUiqwvLgvuAvOxPJ9bnZwtnaZPWiSM70DVrPE6Q2r rNnenCaOnX2brG6SKrHipmX763OTIbPvKU4QKLWNpW3YezCNq1xmeloboYBkeq5o2upYC2n3j7uje otNWWMTXMOMSGBgvrCSMKplgQs9jjLlgHe6A3zVBGqLiPP1r9Cu6VLuBt57VSzbRNwHTadZcRKMtH wvaPq+lExZOIg4t7vpi/27MNItCA9MnetLml5SjvUzPl1UbZYopsBKSPbl0SpPEMbpXRTCDsOj9rq tvEF4nZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1thpVW-00000003nds-27WM; Tue, 11 Feb 2025 12:36:54 +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-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] 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");