From patchwork Tue Jun 14 19:10:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Elder X-Patchwork-Id: 83981 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1o1BxU-003fnT-4U; Tue, 14 Jun 2022 19:12:12 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345187AbiFNTML (ORCPT + 1 other); Tue, 14 Jun 2022 15:12:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245174AbiFNTMK (ORCPT ); Tue, 14 Jun 2022 15:12:10 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E833205CF for ; Tue, 14 Jun 2022 12:12:09 -0700 (PDT) Received: from pyrite.rasen.tech (softbank036240126034.bbtec.net [36.240.126.34]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 697FF9E5; Tue, 14 Jun 2022 21:12:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1655233927; bh=MN+k+386HwfC89iXMHL522rxnVO8f8e0jWiEPtZXKlI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oL09Tb7mRFKMOrMiHIzBgkQnQjP2jQciWy6gmtnoJNDVXOWV5G9c8DiM+p4N6e7nO CpI7HCu92KAEQYQpZfRL1TC4Lgu/LDgtknVIFuiYOf/DA0ShYssLg/30CI1pOUFiwu /YlXessdkT6w9ajLpqGTQNo+hN/sMo8+0TEAQe24= From: Paul Elder To: linux-media@vger.kernel.org Cc: Laurent Pinchart , dafna@fastmail.com, heiko@sntech.de, jeanmichel.hautbois@ideasonboard.com, jacopo@jmondi.org, djrscally@gmail.com, helen.koike@collabora.com, linux-rockchip@lists.infradead.org Subject: [PATCH 05/55] media: rkisp1: Read the ID register at probe time instead of streamon Date: Wed, 15 Jun 2022 04:10:37 +0900 Message-Id: <20220614191127.3420492-6-paul.elder@ideasonboard.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220614191127.3420492-1-paul.elder@ideasonboard.com> References: <20220614191127.3420492-1-paul.elder@ideasonboard.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no From: Laurent Pinchart There's no need to read the ID register every time streaming is started. Do it once, at probe time. Signed-off-by: Laurent Pinchart --- drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c | 10 ++++++++++ drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c | 4 ---- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index 248f0172ca62..ba773c0784fb 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c @@ -467,6 +467,7 @@ static int rkisp1_probe(struct platform_device *pdev) struct v4l2_device *v4l2_dev; unsigned int i; int ret, irq; + u32 cif_id; match_data = of_device_get_match_data(&pdev->dev); if (!match_data) @@ -509,6 +510,15 @@ static int rkisp1_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret) + goto err_pm_runtime_disable; + + cif_id = rkisp1_read(rkisp1, RKISP1_CIF_VI_ID); + dev_dbg(rkisp1->dev, "CIF_ID 0x%08x\n", cif_id); + + pm_runtime_put(&pdev->dev); + rkisp1->media_dev.hw_revision = match_data->isp_ver; strscpy(rkisp1->media_dev.model, RKISP1_DRIVER_NAME, sizeof(rkisp1->media_dev.model)); diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c index 187d78075acb..02968656f3c0 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c @@ -473,12 +473,8 @@ static int rkisp1_config_path(struct rkisp1_device *rkisp1) /* Hardware configure Entry */ static int rkisp1_config_cif(struct rkisp1_device *rkisp1) { - u32 cif_id; int ret; - cif_id = rkisp1_read(rkisp1, RKISP1_CIF_VI_ID); - dev_dbg(rkisp1->dev, "CIF_ID 0x%08x\n", cif_id); - ret = rkisp1_config_isp(rkisp1); if (ret) return ret;