From patchwork Fri Apr 8 11:22:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 12806455 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 89941C433EF for ; Fri, 8 Apr 2022 11:26:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=A3OX2r2yREwXdPfzm1VaCK19fL3GkJRzQONcYRRv7fI=; b=k05YGMMOryiUXA wRJpnLMSu1cKfNMTv0t5+wFI0RDrUaSuwESMDfGvHjigMD45WlcuOlNlaBznD2KDPX9iCFJlEdUF3 gxQWfNjNxPpPItqtvGaeSdwUfIxi+FziO3QzkEMUEhqggBAk8RZW0N3OLVJZ4SLBmdehsAzwkaQxM dLL+Mhmmuxci/pjBKpB7UNuciQwM5MRB04+C25AhmK+LttwMiceKXJOV9HrqfqmYWACsW8tJIhn2C JnDFAvM8ks+Z9XvanDEg+CsbRjIV6yQZm2fsSswZw0jK0zeRXLxcby8AjR0CHnhUPQr79AGc58FLa diNkZjkUDXcqg9w+d05g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ncmjn-00GZYQ-Nf; Fri, 08 Apr 2022 11:25:12 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ncmhY-00GY1Z-D3 for linux-arm-kernel@lists.infradead.org; Fri, 08 Apr 2022 11:22:59 +0000 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 1ncmhS-0002Hp-4Z; Fri, 08 Apr 2022 13:22:46 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1ncmhR-001n3y-L9; Fri, 08 Apr 2022 13:22:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1ncmhO-005Z3m-8Y; Fri, 08 Apr 2022 13:22:42 +0200 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Andy Yan , Benjamin Gaignard , Michael Riesch , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Peter Geis , Sascha Hauer , Dmitry Osipenko Subject: [PATCH v10 04/24] drm/rockchip: dw_hdmi: rename vpll clock to reference clock Date: Fri, 8 Apr 2022 13:22:18 +0200 Message-Id: <20220408112238.1274817-5-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220408112238.1274817-1-s.hauer@pengutronix.de> References: <20220408112238.1274817-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220408_042252_649834_F248C3DE X-CRM114-Status: GOOD ( 16.91 ) 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 "vpll" is a misnomer. A clock input to a device should be named after the usage in the device, not after the clock that drives it. On the rk3568 the same clock is driven by the HPLL. To fix that, this patch renames the vpll clock to ref clock. The clock name "vpll" is left for compatibility to old device trees. Signed-off-by: Sascha Hauer Reviewed-by: Dmitry Osipenko --- Notes: Changes since v6: - Simplify by using devm_clk_get_optional() instead of devm_clk_get() drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 27 +++++++++++---------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index 06c9ddef6f362..912181429880a 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -69,7 +69,7 @@ struct rockchip_hdmi { struct regmap *regmap; struct rockchip_encoder encoder; const struct rockchip_hdmi_chip_data *chip_data; - struct clk *vpll_clk; + struct clk *ref_clk; struct clk *grf_clk; struct dw_hdmi *hdmi; struct phy *phy; @@ -201,14 +201,15 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi) return PTR_ERR(hdmi->regmap); } - hdmi->vpll_clk = devm_clk_get(hdmi->dev, "vpll"); - if (PTR_ERR(hdmi->vpll_clk) == -ENOENT) { - hdmi->vpll_clk = NULL; - } else if (PTR_ERR(hdmi->vpll_clk) == -EPROBE_DEFER) { + hdmi->ref_clk = devm_clk_get_optional(hdmi->dev, "ref"); + if (!hdmi->ref_clk) + hdmi->ref_clk = devm_clk_get_optional(hdmi->dev, "vpll"); + + if (PTR_ERR(hdmi->ref_clk) == -EPROBE_DEFER) { return -EPROBE_DEFER; - } else if (IS_ERR(hdmi->vpll_clk)) { - DRM_DEV_ERROR(hdmi->dev, "failed to get vpll clock\n"); - return PTR_ERR(hdmi->vpll_clk); + } else if (IS_ERR(hdmi->ref_clk)) { + DRM_DEV_ERROR(hdmi->dev, "failed to get reference clock\n"); + return PTR_ERR(hdmi->ref_clk); } hdmi->grf_clk = devm_clk_get(hdmi->dev, "grf"); @@ -262,7 +263,7 @@ static void dw_hdmi_rockchip_encoder_mode_set(struct drm_encoder *encoder, { struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder); - clk_set_rate(hdmi->vpll_clk, adj_mode->clock * 1000); + clk_set_rate(hdmi->ref_clk, adj_mode->clock * 1000); } static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder) @@ -542,9 +543,9 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, return ret; } - ret = clk_prepare_enable(hdmi->vpll_clk); + ret = clk_prepare_enable(hdmi->ref_clk); if (ret) { - DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI vpll: %d\n", + DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI reference clock: %d\n", ret); return ret; } @@ -563,7 +564,7 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, if (IS_ERR(hdmi->hdmi)) { ret = PTR_ERR(hdmi->hdmi); drm_encoder_cleanup(encoder); - clk_disable_unprepare(hdmi->vpll_clk); + clk_disable_unprepare(hdmi->ref_clk); } return ret; @@ -575,7 +576,7 @@ static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master, struct rockchip_hdmi *hdmi = dev_get_drvdata(dev); dw_hdmi_unbind(hdmi->hdmi); - clk_disable_unprepare(hdmi->vpll_clk); + clk_disable_unprepare(hdmi->ref_clk); } static const struct component_ops dw_hdmi_rockchip_ops = {