From patchwork Tue Feb 2 14:56:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 12061947 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 CF242C433DB for ; Tue, 2 Feb 2021 14:58:10 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1F28664F5C for ; Tue, 2 Feb 2021 14:58:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F28664F5C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=zbS4+xOVCSz4oRoJzBKpGSQ2EOufR0ctr6oJYg/H1O0=; b=gSgSB3r4Kvy8YtQ4AlCHSKnU2 ziEQceyAGbP4jQ9QGVEltmhODPMofahu0lRc2xn56nwb5E9TKM1gnhz1W5tMfzu8vKoDFLTtPbz0x Ia5pcbwRMVkzUOikU0XNsbIqW65iF70vo+1X+CCJTdZtCWu0YAxxmjBuATFogUv/jsUk+/1qsEdC/ /zOYg2wcLFuBCelSxFA3lZg7YaGNI2l+/+0YWhGB9crOmVF0QQUH0z3TD5IEzcHqLKD1qSmIPSU/F LYepJIxShC+lUVWddXzkvV51ujfMhY7wT+w09CpcwKF1qIXwOuocpf3n1riZ8lRVq7/bjd9+P0aSq ukmfJqXOg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l6x6u-0003ts-CQ; Tue, 02 Feb 2021 14:56:56 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l6x6q-0003rp-Gv; Tue, 02 Feb 2021 14:56:53 +0000 Received: from ip5f5aa64a.dynamic.kabel-deutschland.de ([95.90.166.74] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l6x6m-00020V-38; Tue, 02 Feb 2021 15:56:48 +0100 From: Heiko Stuebner To: dri-devel@lists.freedesktop.org Subject: [PATCH 1/6] drm/rockchip: dsi: add own additional pclk handling Date: Tue, 2 Feb 2021 15:56:27 +0100 Message-Id: <20210202145632.1263136-2-heiko@sntech.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210202145632.1263136-1-heiko@sntech.de> References: <20210202145632.1263136-1-heiko@sntech.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210202_095652_640375_7BF17B45 X-CRM114-Status: GOOD ( 13.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, dafna.hirschfeld@collabora.com, heiko@sntech.de, cmuellner@linux.com, hjc@rock-chips.com, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, helen.koike@collabora.com, robh+dt@kernel.org, sebastian.fricke@posteo.net, Heiko Stuebner , ezequiel@collabora.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Heiko Stuebner In a followup patch, we'll need to access the pclk ourself to enable some functionality, so get and store it in the rockchip dw-dsi variant as well. Clocks are refcounted, so possible cascading enablements are no problem. Signed-off-by: Heiko Stuebner --- drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c index 24a71091759c..18e112e30f6e 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c @@ -223,6 +223,7 @@ struct dw_mipi_dsi_rockchip { void __iomem *base; struct regmap *grf_regmap; + struct clk *pclk; struct clk *pllref_clk; struct clk *grf_clk; struct clk *phy_cfg_clk; @@ -1051,6 +1052,13 @@ static int dw_mipi_dsi_rockchip_probe(struct platform_device *pdev) return ret; } + dsi->pclk = devm_clk_get(dev, "pclk"); + if (IS_ERR(dsi->pclk)) { + ret = PTR_ERR(dsi->pclk); + DRM_DEV_ERROR(dev, "Unable to get pclk: %d\n", ret); + return ret; + } + dsi->pllref_clk = devm_clk_get(dev, "ref"); if (IS_ERR(dsi->pllref_clk)) { if (dsi->phy) {