From patchwork Wed Sep 8 13:03:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tretter X-Patchwork-Id: 12481101 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A81DAC433EF for ; Wed, 8 Sep 2021 13:03:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8D9E56115C for ; Wed, 8 Sep 2021 13:03:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230326AbhIHNEa (ORCPT ); Wed, 8 Sep 2021 09:04:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235591AbhIHNE0 (ORCPT ); Wed, 8 Sep 2021 09:04:26 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 57AEDC0613C1 for ; Wed, 8 Sep 2021 06:03:18 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mNxES-0004mJ-L9; Wed, 08 Sep 2021 15:03:16 +0200 Received: from [2a0a:edc0:0:1101:1d::39] (helo=dude03.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1mNxER-0004SD-Mc; Wed, 08 Sep 2021 15:03:15 +0200 Received: from mtr by dude03.red.stw.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1mNxER-00DpG8-Lp; Wed, 08 Sep 2021 15:03:15 +0200 From: Michael Tretter To: linux-media@vger.kernel.org, mchehab@kernel.org, hverkuil-cisco@xs4all.nl Cc: kernel@pengutronix.de, m.tretter@pengutronix.de Subject: [PATCH 3/6] media: allegro: lookup VCU settings Date: Wed, 8 Sep 2021 15:03:12 +0200 Message-Id: <20210908130315.3295253-4-m.tretter@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210908130315.3295253-1-m.tretter@pengutronix.de> References: <20210908130315.3295253-1-m.tretter@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: mtr@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The VCU provides information about its configuration in a dedicated register space. These settings include, for example, the expected clock rates and the configuration of the encoder buffer. In the device tree, the settings are described by the "xlnx,vcu-settings" compatible. The settings are needed to correctly configure the clocks and the encoder buffer. Lookup the VCU settings in the device tree and make it accessible to the driver via a regmap. Signed-off-by: Michael Tretter --- drivers/media/platform/allegro-dvt/allegro-core.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c index 89d6de6082f6..2663d9da0522 100644 --- a/drivers/media/platform/allegro-dvt/allegro-core.c +++ b/drivers/media/platform/allegro-dvt/allegro-core.c @@ -12,6 +12,8 @@ #include #include #include +#include +#include #include #include #include @@ -136,6 +138,7 @@ struct allegro_dev { struct regmap *regmap; struct regmap *sram; + struct regmap *settings; const struct fw_info *fw_info; struct allegro_buffer firmware; @@ -3721,6 +3724,10 @@ static int allegro_probe(struct platform_device *pdev) return PTR_ERR(dev->sram); } + dev->settings = syscon_regmap_lookup_by_compatible("xlnx,vcu-settings"); + if (IS_ERR(dev->settings)) + dev_warn(&pdev->dev, "failed to open settings\n"); + irq = platform_get_irq(pdev, 0); if (irq < 0) return irq;