From patchwork Tue Dec 17 17:39:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 13912364 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 3E427E77188 for ; Tue, 17 Dec 2024 18:08:28 +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:CC:To:In-Reply-To:References :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7zKVl4ErJTsqC1L8EpP30Wrq/2TXXpHRlMyoxXlbIuI=; b=KM9P7VKfxSCmvDC8gBDlp+++lB ibTKOBFk8hhgM7QcGBNh0HIWIH5hSApPtGDyC1jAhbzXD8VvrKjyuKkofHfR3/56QMcOVRQDnm0zM WgrF2SNQIKCczmrM8g1jUC0bZtXMnqPP/6A4DNQcPVkIjBz6+nt1pAaEiY4pi6bjCRjX8+a0pAx/h 7GPDMpTZyFH/XI4Zl5gjluU6copmECD/lxvfqKfOkRi+S6yNHJnickiiFd825TOiWfz6eU0TJ38uX KDQbeWgi8cI+tryc5L8lAQJ4O+4U00ox3laftLLzEoFe5FVqXzNai4XeTlDDX9JGMj7YGcT+pVH2A W8BsaFsg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tNbzS-0000000ESqm-3IkN; Tue, 17 Dec 2024 18:08:14 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tNbZu-0000000ENqs-0GCZ for linux-arm-kernel@lists.infradead.org; Tue, 17 Dec 2024 17:41:51 +0000 Received: from pps.filterd (m0288072.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4BHD9qtJ008410; Tue, 17 Dec 2024 18:41:40 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= 7zKVl4ErJTsqC1L8EpP30Wrq/2TXXpHRlMyoxXlbIuI=; b=duuTqoIETZ9MdyH6 Kzq3nDbOUtI9MHACepSiyCnDVmWWRK5dIkqHdUOyRbIFtKruZfTDnVRSnmRy6t77 mIqtiINAqYiykH92OfLHCWT3/neSIEHHo2MfkTYUN2EBD3rDnhdLCEQQui8z6zsQ evb6Hvz9kVMgGK/kIzgBtQXg+ezgjFzUFfHm3V61JwFw2/uHuZLdAzCtNYYQ3i4N I1LUwIaZT77zqwFmcj95hWES+YDMYrdwofUxbO87mOHFKwdoCBqcHezIMeeaCsyt PGb2OCWMSV+8P4/vNMGgWNe+79kwxGpsuihBSJDU5/aV2hZT6z5CniBxAjW26a7R 0PoFGg== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 43k5h9jwag-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 17 Dec 2024 18:41:39 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 7B59C40048; Tue, 17 Dec 2024 18:40:16 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id A98A3290CDA; Tue, 17 Dec 2024 18:39:29 +0100 (CET) Received: from localhost (10.252.23.235) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.37; Tue, 17 Dec 2024 18:39:29 +0100 From: Alain Volmat Date: Tue, 17 Dec 2024 18:39:22 +0100 Subject: [PATCH 5/9] media: stm32: csi: use ARRAY_SIZE to search D-PHY table MIME-Version: 1.0 Message-ID: <20241217-csi_dcmipp_mp25_enhancements-v1-5-2b432805d17d@foss.st.com> References: <20241217-csi_dcmipp_mp25_enhancements-v1-0-2b432805d17d@foss.st.com> In-Reply-To: <20241217-csi_dcmipp_mp25_enhancements-v1-0-2b432805d17d@foss.st.com> To: Hugues Fruchet , Mauro Carvalho Chehab , Maxime Coquelin , Alexandre Torgue , Hans Verkuil , Sakari Ailus , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , , , Alain Volmat X-Mailer: b4 0.14.1 X-Originating-IP: [10.252.23.235] X-ClientProxiedBy: EQNCAS1NODE4.st.com (10.75.129.82) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241217_094150_410817_DABE8A1F X-CRM114-Status: GOOD ( 16.15 ) 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 Within stm32_csi_start, use ARRAY_SIZE loop in order to search for the right setting. Avoid useless init of lanes_ie / lanes_en. Signed-off-by: Alain Volmat --- drivers/media/platform/st/stm32/stm32-csi.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/media/platform/st/stm32/stm32-csi.c b/drivers/media/platform/st/stm32/stm32-csi.c index 89fcd7d07904..3654f9895dbc 100644 --- a/drivers/media/platform/st/stm32/stm32-csi.c +++ b/drivers/media/platform/st/stm32/stm32-csi.c @@ -325,7 +325,6 @@ static const struct stm32_csi_mbps_phy_reg snps_stm32mp25[] = { { .mbps = 2400, .hsfreqrange = 0x47, .osc_freq_target = 442 }, { .mbps = 2450, .hsfreqrange = 0x48, .osc_freq_target = 451 }, { .mbps = 2500, .hsfreqrange = 0x49, .osc_freq_target = 460 }, - { /* sentinel */ } }; static const struct v4l2_mbus_framefmt fmt_default = { @@ -444,13 +443,13 @@ static void stm32_csi_phy_reg_write(struct stm32_csi_dev *csidev, static int stm32_csi_start(struct stm32_csi_dev *csidev, struct v4l2_subdev_state *state) { - const struct stm32_csi_mbps_phy_reg *phy_regs; + const struct stm32_csi_mbps_phy_reg *phy_regs = NULL; struct v4l2_mbus_framefmt *sink_fmt; const struct stm32_csi_fmts *fmt; unsigned long phy_clk_frate; + u32 lanes_ie, lanes_en; unsigned int mbps; - u32 lanes_ie = 0; - u32 lanes_en = 0; + unsigned int i; s64 link_freq; int ret; u32 ccfr; @@ -474,11 +473,14 @@ static int stm32_csi_start(struct stm32_csi_dev *csidev, mbps = div_s64(link_freq, 500000); dev_dbg(csidev->dev, "Computed Mbps: %u\n", mbps); - for (phy_regs = snps_stm32mp25; phy_regs->mbps != 0; phy_regs++) - if (phy_regs->mbps >= mbps) + for (i = 0; i < ARRAY_SIZE(snps_stm32mp25); i++) { + if (snps_stm32mp25[i].mbps >= mbps) { + phy_regs = &snps_stm32mp25[i]; break; + } + } - if (!phy_regs->mbps) { + if (!phy_regs) { dev_err(csidev->dev, "Unsupported PHY speed (%u Mbps)", mbps); return -ERANGE; } @@ -488,8 +490,8 @@ static int stm32_csi_start(struct stm32_csi_dev *csidev, phy_regs->osc_freq_target); /* Prepare lanes related configuration bits */ - lanes_ie |= STM32_CSI_SR1_DL0_ERRORS; - lanes_en |= STM32_CSI_PCR_DL0EN; + lanes_ie = STM32_CSI_SR1_DL0_ERRORS; + lanes_en = STM32_CSI_PCR_DL0EN; if (csidev->num_lanes == 2) { lanes_ie |= STM32_CSI_SR1_DL1_ERRORS; lanes_en |= STM32_CSI_PCR_DL1EN;