From patchwork Wed Feb 10 11:10:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 380509 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, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 667D4C43381 for ; Wed, 10 Feb 2021 11:13:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 335B564D99 for ; Wed, 10 Feb 2021 11:13:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229925AbhBJLNj (ORCPT ); Wed, 10 Feb 2021 06:13:39 -0500 Received: from gloria.sntech.de ([185.11.138.130]:43748 "EHLO gloria.sntech.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230166AbhBJLLO (ORCPT ); Wed, 10 Feb 2021 06:11:14 -0500 Received: from [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 1l9nO2-0003eN-Su; Wed, 10 Feb 2021 12:10:22 +0100 From: Heiko Stuebner To: dri-devel@lists.freedesktop.org Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, hjc@rock-chips.com, heiko@sntech.de, robh+dt@kernel.org, sebastian.fricke@posteo.net, linux-media@vger.kernel.org, dafna.hirschfeld@collabora.com, helen.koike@collabora.com, ezequiel@collabora.com, cmuellner@linux.com, Heiko Stuebner Subject: [PATCH v2 1/6] drm/rockchip: dsi: add own additional pclk handling Date: Wed, 10 Feb 2021 12:10:15 +0100 Message-Id: <20210210111020.2476369-2-heiko@sntech.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210210111020.2476369-1-heiko@sntech.de> References: <20210210111020.2476369-1-heiko@sntech.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.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 Tested-by: Sebastian Fricke --- 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) {