From patchwork Fri Mar 18 18:47:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12785787 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 A1937C433FE for ; Fri, 18 Mar 2022 18:48:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E494410E626; Fri, 18 Mar 2022 18:48:16 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) by gabe.freedesktop.org (Postfix) with ESMTPS id 885AA10E0EA for ; Fri, 18 Mar 2022 18:48:15 +0000 (UTC) Received: from tr.lan (ip-89-176-112-137.net.upcbroadband.cz [89.176.112.137]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id E58F5820A3; Fri, 18 Mar 2022 19:48:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1647629294; bh=C66wb/ETZAcnwDtM/Lo7ipBNEZuIPsWT+xt+Gyj18SY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hsDyRvzB4jtXxEdwewcZpOa6avPqrDJmFPoZIdKp33OrY3ZMZvhrvIwDBwh3YfXvC Uhv0MVr0njhbXNUbi6TvWzWfRDIZ3e6U5dlZdt/XBTDbK27DXzjyYNrcR6dBYN+Mnv PASGlnsvkQ+kspY9EsEhVWOC5t31w2IDQ1bjwbhSnFZWuSjyVKrbCs7M5vcPVz8sjQ w96z3NVjnoZMwqgOL9R6w+PZ3RLkyi1FzNKKLQ4jCYypblNNzV1LR90P9ELh38VhNt ePG+5ecowyFhLTw37d7VHEUsjufUgsEobHb58NzXMmLj00hBmCjH393njAYFjDm4WS EPEo0j3lGj1eg== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH v5 03/11] drm: bridge: icn6211: Add HS/VS/DE polarity handling Date: Fri, 18 Mar 2022 19:47:47 +0100 Message-Id: <20220318184755.113152-4-marex@denx.de> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220318184755.113152-1-marex@denx.de> References: <20220318184755.113152-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean 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: , Cc: Marek Vasut , Robert Foss , Maxime Ripard , Thomas Zimmermann , Sam Ravnborg , Jagan Teki Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The driver currently hard-codes HS/VS polarity to active-low and DE to active-high, which is not correct for a lot of supported DPI panels. Add the missing mode flag handling for HS/VS/DE polarity. Acked-by: Maxime Ripard Signed-off-by: Marek Vasut Cc: Jagan Teki Cc: Maxime Ripard Cc: Robert Foss Cc: Sam Ravnborg Cc: Thomas Zimmermann To: dri-devel@lists.freedesktop.org --- V2: Rebase on next-20220214 V3: No change V4: Add AB from Maxime V5: No change --- drivers/gpu/drm/bridge/chipone-icn6211.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c index c871a90c0b8f4..30db8d1783cef 100644 --- a/drivers/gpu/drm/bridge/chipone-icn6211.c +++ b/drivers/gpu/drm/bridge/chipone-icn6211.c @@ -165,8 +165,16 @@ static void chipone_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct chipone *icn = bridge_to_chipone(bridge); + struct drm_atomic_state *state = old_bridge_state->base.state; struct drm_display_mode *mode = &icn->mode; + const struct drm_bridge_state *bridge_state; u16 hfp, hbp, hsync; + u32 bus_flags; + u8 pol; + + /* Get the DPI flags from the bridge state. */ + bridge_state = drm_atomic_get_new_bridge_state(state, bridge); + bus_flags = bridge_state->output_bus_cfg.flags; ICN6211_DSI(icn, MIPI_CFG_PW, MIPI_CFG_PW_CONFIG_DSI); @@ -206,7 +214,13 @@ static void chipone_atomic_enable(struct drm_bridge *bridge, ICN6211_DSI(icn, HFP_MIN, hfp & 0xff); ICN6211_DSI(icn, MIPI_PD_CK_LANE, 0xa0); ICN6211_DSI(icn, PLL_CTRL(12), 0xff); - ICN6211_DSI(icn, BIST_POL, BIST_POL_DE_POL); + + /* DPI HS/VS/DE polarity */ + pol = ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? BIST_POL_HSYNC_POL : 0) | + ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? BIST_POL_VSYNC_POL : 0) | + ((bus_flags & DRM_BUS_FLAG_DE_HIGH) ? BIST_POL_DE_POL : 0); + ICN6211_DSI(icn, BIST_POL, pol); + ICN6211_DSI(icn, PLL_CTRL(6), PLL_CTRL_6_MIPI_CLK); ICN6211_DSI(icn, PLL_REF_DIV, 0x71); ICN6211_DSI(icn, PLL_INT(0), 0x2b);