From patchwork Fri May 3 15:11:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 13653021 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 692BCC25B5C for ; Fri, 3 May 2024 15:12:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 899DC1130FA; Fri, 3 May 2024 15:12:14 +0000 (UTC) Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) by gabe.freedesktop.org (Postfix) with ESMTPS id C37871130E8 for ; Fri, 3 May 2024 15:12:12 +0000 (UTC) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1s2uZR-0004Ck-K7; Fri, 03 May 2024 17:11:33 +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 1s2uZO-00FjHY-4X; Fri, 03 May 2024 17:11:30 +0200 From: Lucas Stach To: =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Sandy Huang , Jingoo Han , Inki Dae , Seung-Woo Kim , Kyungmin Park , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de, patchwork-lst@pengutronix.de Subject: [PATCH 08/14] drm/bridge: analogix_dp: move basic controller init into runtime PM Date: Fri, 3 May 2024 17:11:23 +0200 Message-Id: <20240503151129.3901815-9-l.stach@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240503151129.3901815-1-l.stach@pengutronix.de> References: <20240503151129.3901815-1-l.stach@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Make sure the controller is in a basic working state after runtime resume. Keep the analog function enable in the mode set path as this enables parts of the PHY that are only required to be powered when there is a data stream being sent out. Signed-off-by: Lucas Stach Reviewed-by: Robert Foss --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 3281c00a39cd..fdb2c2a2b69a 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -41,10 +41,8 @@ struct bridge_init { struct device_node *node; }; -static int analogix_dp_init_dp(struct analogix_dp_device *dp) +static void analogix_dp_init_dp(struct analogix_dp_device *dp) { - int ret; - analogix_dp_reset(dp); analogix_dp_swreset(dp); @@ -56,13 +54,9 @@ static int analogix_dp_init_dp(struct analogix_dp_device *dp) analogix_dp_enable_sw_function(dp); analogix_dp_config_interrupt(dp); - ret = analogix_dp_init_analog_func(dp); - if (ret) - return ret; analogix_dp_init_hpd(dp); analogix_dp_init_aux(dp); - return 0; } static int analogix_dp_detect_hpd(struct analogix_dp_device *dp) @@ -1258,9 +1252,9 @@ static int analogix_dp_set_bridge(struct analogix_dp_device *dp) pm_runtime_get_sync(dp->dev); - ret = analogix_dp_init_dp(dp); + ret = analogix_dp_init_analog_func(dp); if (ret) - goto out_dp_init; + return ret; /* * According to DP spec v1.3 chap 3.5.1.2 Link Training, @@ -1726,6 +1720,8 @@ int analogix_dp_resume(struct analogix_dp_device *dp) phy_power_on(dp->phy); + analogix_dp_init_dp(dp); + return 0; } EXPORT_SYMBOL_GPL(analogix_dp_resume);