From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BCEBA1C29 for ; Wed, 29 Mar 2023 13:18:12 +0000 (UTC) Received: by mail-pl1-f181.google.com with SMTP id c18so14856866ple.11 for ; Wed, 29 Mar 2023 06:18:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1680095892; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=d+PX9J3U7p5qZlBeWmtYaZVahtk7x+bKgv0zxDQ5NKg=; b=pNuu1Gkcpj7ou0/NxyX2OGB7HOgjlkfVVree1zpId6rRDygggKC/Odx+8t6UQxJCSH 3K+nqLT4ETFZW5uFx2XJALuvcQQIRVGsHyk4MfHSsUCru8tigfcYVsv3aZkd0DLlIYg3 n2HCEBT3mtN4hni20h9YKd5wzUcRPY5DNSsVU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680095892; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=d+PX9J3U7p5qZlBeWmtYaZVahtk7x+bKgv0zxDQ5NKg=; b=IlFW+D3gZ7oSVzQ14pdOklXQsY/VCUnI8qDBsqXsIawJqSl5NAQksPc4BNFkW8xYUz Vp6xp/+D56Lvr2RuPyYKjX42XlP25ETwJuotkQiVzG6rB0pNbJrV5k6gU6tMdFGdawGv 9C4zGQU7t9q1tUKUE5PW7i9gm29l1Ls+a4Qfio0UofS4JwSoM73MosNsAbxRP+ml/K1Q wnE10h2kIpEaOrHTobAEmYIO0nRQgMlxzdopimaYxyOCwkBE1sCxpYDWSr4VTv2F1HvU eKMF3RJLvaUxDgHWrBVyeXXO+9ehJ88KCELFamzHp3PKlFNRLWVIzuHDk0Y5Mc4KidaY 1YsQ== X-Gm-Message-State: AAQBX9e+7KqqscX7JchFbU0NlJ/mrY4MGTLoK49AFo+/ePAECfYsOAk+ hsHqtFKuHLLC0xRS3xI2Yy36kw== X-Google-Smtp-Source: AKy350bokE1By8nbjH4J86bI+d67CKIP38qBgLKevOIo/+cgjC0kVbu1W/gnjsNm0Xt8H7dXZUIQzg== X-Received: by 2002:a17:90b:3b44:b0:23b:50ff:59ba with SMTP id ot4-20020a17090b3b4400b0023b50ff59bamr19952654pjb.21.1680095892216; Wed, 29 Mar 2023 06:18:12 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a047:206d:4722:c4fa:e845]) by smtp.gmail.com with ESMTPSA id s16-20020a17090b071000b0023f5c867f82sm1400192pjz.41.2023.03.29.06.18.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 06:18:11 -0700 (PDT) From: Jagan Teki To: Dave Stevenson , Maxime Ripard , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Sam Ravnborg , Rob Herring , Krzysztof Kozlowski Cc: linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Marek Vasut , linux-amarula , Jagan Teki Subject: [PATCH v7 04/12] drm: panel: sitronix-st7701: Enable prepare_prev_first for ts8550b Date: Wed, 29 Mar 2023 18:46:10 +0530 Message-Id: <20230329131615.1328366-5-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230329131615.1328366-1-jagan@amarulasolutions.com> References: <20230329131615.1328366-1-jagan@amarulasolutions.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Enable the drm panel prepare_prev_first flag for ts8550b panel so-that the previous controller should be prepared first before the prepare for the panel is called.     This makes sure that the previous controller(sun6i-mipi-dsi), likely to be a DSI host controller should be initialized to LP-11 before the panel is powered up. Signed-off-by: Jagan Teki --- Changes for v7: - new patch drivers/gpu/drm/panel/panel-sitronix-st7701.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c index 7eae83aa0ea1..dc7677412023 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c @@ -105,6 +105,7 @@ struct st7701_panel_desc { unsigned int lanes; enum mipi_dsi_pixel_format format; unsigned int panel_sleep_delay; + bool prepare_prev_first; /* TFT matrix driver configuration, panel specific. */ const u8 pv_gamma[16]; /* Positive voltage gamma control */ @@ -564,6 +565,7 @@ static const struct st7701_panel_desc ts8550b_desc = { .lanes = 2, .format = MIPI_DSI_FMT_RGB888, .panel_sleep_delay = 80, /* panel need extra 80ms for sleep out cmd */ + .prepare_prev_first = true, .pv_gamma = { CFIELD_PREP(DSI_CMD2_BK0_GAMCTRL_AJ_MASK, 0) | @@ -875,6 +877,7 @@ static int st7701_dsi_probe(struct mipi_dsi_device *dsi) drm_panel_init(&st7701->panel, &dsi->dev, &st7701_funcs, DRM_MODE_CONNECTOR_DSI); + st7701->panel.prepare_prev_first = desc->prepare_prev_first; /** * Once sleep out has been issued, ST7701 IC required to wait 120ms -- 2.25.1