From patchwork Wed Nov 27 10:30:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrej Picej X-Patchwork-Id: 13887408 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 A72FDD6D247 for ; Wed, 27 Nov 2024 22:47:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F00D610E302; Wed, 27 Nov 2024 22:47:41 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=norik.com header.i=@norik.com header.b="aASOeJoy"; dkim-atps=neutral Received: from cpanel.siel.si (cpanel.siel.si [46.19.9.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4430510EA93 for ; Wed, 27 Nov 2024 11:00:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=norik.com; s=default; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=HDovDaEOFR4qUZaygP6Mpx2tbmWwjmnzTWmEO3UiYwo=; b=aASOeJoywklCeOh/F6TjHzBMJD mTL5Ymn8eus4irgeCOC5ll4doPl5wfve0rmQDmsf+9muLv/b1Avq/si6cQ1Ehj8t/6fKN05k10sc5 yAnF7gaZpRoUElF+y3i9I0tk6y5V6kV4Dh/KBWzM/wxkB/HQwSwMBH+NN59+A2IEMuhCGCuMbt5IG /NvPtHinS3ioDY8ZXWLHW0tkP6S7Q8SUftXXxSN6PI4RcDhyeXZdo1yBzHUnb9OvvNYsZbi5/1orP PFDEmzwMcNnukb6MYWPA3p7jN68U2Cis/X9SoW/SBpnHN9e7DePeZcu5SnLoggNsltqhkIWd5gKkw UreS43aw==; Received: from [89.212.21.243] (port=49750 helo=and-HP-Z4..) by cpanel.siel.si with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96.2) (envelope-from ) id 1tGFK8-007Rx6-32; Wed, 27 Nov 2024 11:31:08 +0100 From: Andrej Picej To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, marex@denx.de Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/3] drm/bridge: ti-sn65dsi83: Add ti, lvds-vcom as optional property Date: Wed, 27 Nov 2024 11:30:30 +0100 Message-Id: <20241127103031.1007893-3-andrej.picej@norik.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241127103031.1007893-1-andrej.picej@norik.com> References: <20241127103031.1007893-1-andrej.picej@norik.com> MIME-Version: 1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel.siel.si X-AntiAbuse: Original Domain - lists.freedesktop.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - norik.com X-Get-Message-Sender-Via: cpanel.siel.si: authenticated_id: andrej.picej@norik.com X-Authenticated-Sender: cpanel.siel.si: andrej.picej@norik.com X-Source: X-Source-Args: X-Source-Dir: X-Mailman-Approved-At: Wed, 27 Nov 2024 22:47:27 +0000 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" From: Janine Hagemann Add a optional property to change LVDS output voltage. This should not be static as this depends mainly on the connected display voltage requirement. If the property is not present, the default value of 0x05 is used. Signed-off-by: Janine Hagemann Signed-off-by: Andrej Picej --- drivers/gpu/drm/bridge/ti-sn65dsi83.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c index 57a7ed13f996..d6824f6501b6 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c @@ -147,6 +147,7 @@ struct sn65dsi83 { struct regulator *vcc; bool lvds_dual_link; bool lvds_dual_link_even_odd_swap; + u32 lvds_vcom; }; static const struct regmap_range sn65dsi83_readable_ranges[] = { @@ -435,7 +436,7 @@ static void sn65dsi83_atomic_pre_enable(struct drm_bridge *bridge, val |= REG_LVDS_FMT_LVDS_LINK_CFG; regmap_write(ctx->regmap, REG_LVDS_FMT, val); - regmap_write(ctx->regmap, REG_LVDS_VCOM, 0x05); + regmap_write(ctx->regmap, REG_LVDS_VCOM, ctx->lvds_vcom); regmap_write(ctx->regmap, REG_LVDS_LANE, (ctx->lvds_dual_link_even_odd_swap ? REG_LVDS_LANE_EVEN_ODD_SWAP : 0) | @@ -580,6 +581,13 @@ static int sn65dsi83_parse_dt(struct sn65dsi83 *ctx, enum sn65dsi83_model model) { struct drm_bridge *panel_bridge; struct device *dev = ctx->dev; + struct device_node *endpoint; + + ctx->lvds_vcom = 0x05; + + endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, 0); + of_property_read_u32(endpoint, "ti,lvds-vcom", &ctx->lvds_vcom); + of_node_put(endpoint); ctx->lvds_dual_link = false; ctx->lvds_dual_link_even_odd_swap = false;