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[209.85.220.41]) by mx.google.com with SMTPS id h1-20020a17090ac38100b002344bdd90f1sor844723pjt.28.2023.03.29.06.18.33 for (Google Transport Security); Wed, 29 Mar 2023 06:18:33 -0700 (PDT) Received-SPF: pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; X-Received: by 2002:a17:90b:1d02:b0:23d:133a:62cc with SMTP id on2-20020a17090b1d0200b0023d133a62ccmr21046371pjb.17.1680095912864; Wed, 29 Mar 2023 06:18:32 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a047:206d:4722:c4fa:e845]) by smtp.gmail.com with ESMTPSA id s16-20020a17090b071000b0023f5c867f82sm1400192pjz.41.2023.03.29.06.18.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 06:18:32 -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 , Icenowy Zheng Subject: [PATCH v7 07/12] drm: panel: ilitek-ili9881c: Enable prepare_prev_first for k101_im2byl02 Date: Wed, 29 Mar 2023 18:46:13 +0530 Message-Id: <20230329131615.1328366-8-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> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Original-Sender: jagan@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=PP7u3tIV; spf=pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=jagan@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Enable the drm panel prepare_prev_first flag for k101_im2byl02 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. Cc: Icenowy Zheng Signed-off-by: Jagan Teki --- Changes for v7: - new patch drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c index 1ec696adf9de..102a1df0cea0 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c @@ -42,6 +42,7 @@ struct ili9881c_desc { const size_t init_length; const struct drm_display_mode *mode; const unsigned long mode_flags; + bool prepare_prev_first; }; struct ili9881c { @@ -891,6 +892,7 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi) drm_panel_init(&ctx->panel, &dsi->dev, &ili9881c_funcs, DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first = ctx->desc->prepare_prev_first; ctx->power = devm_regulator_get(&dsi->dev, "power"); if (IS_ERR(ctx->power)) @@ -942,6 +944,7 @@ static const struct ili9881c_desc k101_im2byl02_desc = { .init_length = ARRAY_SIZE(k101_im2byl02_init), .mode = &k101_im2byl02_default_mode, .mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE, + .prepare_prev_first = true, }; static const struct ili9881c_desc w552946aba_desc = {