From patchwork Fri Apr 22 07:28:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 12822898 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 ED1E0C433F5 for ; Fri, 22 Apr 2022 07:30:34 +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=BgQy4Oa/ZKEzxMGFdh6TGXzh8Y+CeM5vlPotdmkpRmo=; b=YrVccgO7hB6/ZQ PW9ty0tipERATmr7cAAeKLHC06sXB2GdBJYTUYvJlpXYlsVh9LddUmFR9IRYtuFIj7LlbYTmdreGV D4UPXkVDxVkHAsdwvLeIKvyEhdd1HBblZdNwkSwHiErIWM240qL8Zr/7BntN7w9D4nJTYa0BZg23q qa4JE38N2zNjKBnRMT8fBnJvjd/6B7h7gMOzOVS9DGFv/7TcgVbUscqXkBBbJe2ewFq9BX7jpeu4U BGCfY+bYihVhKDDhKVuX+BM07dQHmfkDvaXQ66cSDkiUqr2lM2PWxh4nxKSAzp0eTsRfnaL9C/jXP f4QZ2nh51zKCUN7Aavcw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nhnj7-00GoNp-US; Fri, 22 Apr 2022 07:29:14 +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 1nhnil-00Go6Z-2W for linux-arm-kernel@lists.infradead.org; Fri, 22 Apr 2022 07:28:54 +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 1nhnii-0008KC-Sd; Fri, 22 Apr 2022 09:28:48 +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 1nhnih-004VyR-SS; Fri, 22 Apr 2022 09:28:46 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nhnid-009ITo-4n; Fri, 22 Apr 2022 09:28:43 +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 v11 09/24] drm/rockchip: dw_hdmi: add regulator support Date: Fri, 22 Apr 2022 09:28:26 +0200 Message-Id: <20220422072841.2206452-10-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220422072841.2206452-1-s.hauer@pengutronix.de> References: <20220422072841.2206452-1-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-20220422_002851_334767_1E51A035 X-CRM114-Status: GOOD ( 18.00 ) 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 The RK3568 has HDMI_TX_AVDD0V9 and HDMI_TX_AVDD_1V8 supply inputs needed for the HDMI port. add support for these to the driver for boards which have them supplied by switchable regulators. Signed-off-by: Sascha Hauer Reviewed-by: Dmitry Osipenko --- drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 41 +++++++++++++++++++-- 1 file changed, 38 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index b64cc62c7b5af..fe4f9556239ac 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include @@ -76,6 +77,8 @@ struct rockchip_hdmi { struct clk *ref_clk; struct clk *grf_clk; struct dw_hdmi *hdmi; + struct regulator *avdd_0v9; + struct regulator *avdd_1v8; struct phy *phy; }; @@ -226,6 +229,14 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi) return PTR_ERR(hdmi->grf_clk); } + hdmi->avdd_0v9 = devm_regulator_get(hdmi->dev, "avdd-0v9"); + if (IS_ERR(hdmi->avdd_0v9)) + return PTR_ERR(hdmi->avdd_0v9); + + hdmi->avdd_1v8 = devm_regulator_get(hdmi->dev, "avdd-1v8"); + if (IS_ERR(hdmi->avdd_1v8)) + return PTR_ERR(hdmi->avdd_1v8); + return 0; } @@ -566,11 +577,23 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, return ret; } + ret = regulator_enable(hdmi->avdd_0v9); + if (ret) { + DRM_DEV_ERROR(hdmi->dev, "failed to enable avdd0v9: %d\n", ret); + goto err_avdd_0v9; + } + + ret = regulator_enable(hdmi->avdd_1v8); + if (ret) { + DRM_DEV_ERROR(hdmi->dev, "failed to enable avdd1v8: %d\n", ret); + goto err_avdd_1v8; + } + ret = clk_prepare_enable(hdmi->ref_clk); if (ret) { DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI reference clock: %d\n", ret); - return ret; + goto err_clk; } if (hdmi->chip_data == &rk3568_chip_data) { @@ -594,10 +617,19 @@ 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->ref_clk); + goto err_bind; } + return 0; + +err_bind: + clk_disable_unprepare(hdmi->ref_clk); + drm_encoder_cleanup(encoder); +err_clk: + regulator_disable(hdmi->avdd_1v8); +err_avdd_1v8: + regulator_disable(hdmi->avdd_0v9); +err_avdd_0v9: return ret; } @@ -608,6 +640,9 @@ static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master, dw_hdmi_unbind(hdmi->hdmi); clk_disable_unprepare(hdmi->ref_clk); + + regulator_disable(hdmi->avdd_1v8); + regulator_disable(hdmi->avdd_0v9); } static const struct component_ops dw_hdmi_rockchip_ops = {