From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D28FAC433DF for ; Sat, 8 Aug 2020 22:33:54 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 96BC1206C0 for ; Sat, 8 Aug 2020 22:33:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ZnW6WC8Z"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="N8siCSMQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96BC1206C0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=E1T8jLeHTCgG955KnT9Nxc4Z8a6e+d8tdJGJuQf5ABg=; b=ZnW6WC8ZKElUmKXCiMy0BDvJs GWSALt9iLUYERT8ALDV0jMV0fqWeml2beP+50Awrub1Dme/CNX9d9z68237Tjlcp0EWn18x5iR7pj fhBl4MjQoqojjMLmmwjmfHbLwbW2+0FrKqVPQZIQt7MU8TMbEOMFIWoZwdG9czEnKi0FFzuDY6ITL PMwD/i9JrVlh2vSxN82y1BSCdGUokJfE5TqZWrocOFhYbm01TjzR4E/m/K21kl+A4FNdKhzvxmJU8 YlmMPax1uy2AKk1i7G9zaUCMjOntkoCcuJmha1r+gAmIUD3OfxbnVKgNDGwiYsobI+j6RfjuBpZpH 6BIOgNfTw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k4XNQ-0004d3-RL; Sat, 08 Aug 2020 22:31:44 +0000 Received: from mail-lf1-x141.google.com ([2a00:1450:4864:20::141]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k4XNJ-0004Y8-6H for linux-arm-kernel@lists.infradead.org; Sat, 08 Aug 2020 22:31:38 +0000 Received: by mail-lf1-x141.google.com with SMTP id c15so2827352lfi.3 for ; Sat, 08 Aug 2020 15:31:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=1UYKfe7fUayrRhNCnBO5pmM/UgWEDb3+VaJYdrKZwQc=; b=N8siCSMQ4Kc6Ei3SpR8jHHp2R3f7UfUbibSXrjiU1uCT/JEQID30GFXj81vyGLqfe4 qKLO6gh9DySOcf7kMx2rAaNjTw+WqGwRJdRmRUREP76tkcsFC7vQLEM57hvrqdTajajD nUFjxZqFru+OIG/arXE9Lm5c2AQoNo5R3/qIAqigs274m3ytauiiLSRddbozyX9Xk62D SREeD4zLBmHsgk2TPd3LzrtCEmQZYQD6n9YgvSpQaA0Xcq5ref5EU6nAru/FSEkjmqbz T41LKIZIrgK1dfOpmwWa9nW2F5XIgaKS4mojd6vhoFrSVXSlh/SiXgbM9FEmR8rS5S+o ggkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=1UYKfe7fUayrRhNCnBO5pmM/UgWEDb3+VaJYdrKZwQc=; b=bJrVpnn28AjrVWTFw4xinCfsO21DO7fyErZbxv6XQtHAG2JxISnObOZq6lRAvft5e4 sTRleICS8IJBj3Ldt+7uip+VxO11o26jmX6h7NdYVjqolffL8cKearDHNZbf8zds7FkT +CwV1rjKt2lt9vOqAb/qLZ3JaCxk9tQ5OGJs5ENnF0WcdYY5vSso2V5zOgEGcaC+H03t VvYePFz8TFozhWk6bZyPa6omuJQe2mVocMJyOZaaEDLoSGoNKCXx1Prm2DDNiBl3EXI2 UEjOVzReGQ4cd1SPNV+lVfUwUrB3iI73A5p0wG84eocxHtoZht9hFkvUWqBdTIfXqy/W RKPQ== X-Gm-Message-State: AOAM533j5xlHiyJ10BFOiZOA/5ftJSDdRDuy3OD48vFqzOF7JZqSrJim 7P+aYvCVctf9pJDcHIvDahMxmg== X-Google-Smtp-Source: ABdhPJy6kfZEfSXCGrh5A4wnaloD225bfFxhcQ5oTpWhiseQn6qbhySBHdcspyALcniJ7j/kp/phAg== X-Received: by 2002:a19:228a:: with SMTP id i132mr9622847lfi.178.1596925887110; Sat, 08 Aug 2020 15:31:27 -0700 (PDT) Received: from localhost.bredbandsbolaget (c-92d7225c.014-348-6c756e10.bbcust.telenor.se. [92.34.215.146]) by smtp.gmail.com with ESMTPSA id x4sm5803827ljd.34.2020.08.08.15.31.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Aug 2020 15:31:26 -0700 (PDT) From: Linus Walleij To: dri-devel@lists.freedesktop.org, Maarten Lankhorst , Maxime Ripard , Sean Paul Subject: [PATCH 2/4 v2] drm/mcde: Support using DSI in LP mode Date: Sun, 9 Aug 2020 00:31:20 +0200 Message-Id: <20200808223122.1492124-2-linus.walleij@linaro.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200808223122.1492124-1-linus.walleij@linaro.org> References: <20200808223122.1492124-1-linus.walleij@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200808_183137_640389_2E04BB33 X-CRM114-Status: GOOD ( 14.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linus Walleij , newbytee@protonmail.com, Stephan Gerhold , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org It is possible to set a flag in the struct mipi_dsi_device so the panel is handled in low power (LP) mode. Some displays only support this mode and it is also good for testing. Cc: newbytee@protonmail.com Cc: Stephan Gerhold Signed-off-by: Linus Walleij --- drivers/gpu/drm/mcde/mcde_dsi.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c index 76fecd7ab658..e335041e6e90 100644 --- a/drivers/gpu/drm/mcde/mcde_dsi.c +++ b/drivers/gpu/drm/mcde/mcde_dsi.c @@ -830,10 +830,11 @@ static void mcde_dsi_start(struct mcde_dsi *d) /* Command mode, clear IF1 ID */ val = readl(d->regs + DSI_CMD_MODE_CTL); /* - * If we enable low-power mode here, with - * val |= DSI_CMD_MODE_CTL_IF1_LP_EN + * If we enable low-power mode here, * then display updates become really slow. */ + if (d->mdsi->mode_flags & MIPI_DSI_MODE_LPM) + val |= DSI_CMD_MODE_CTL_IF1_LP_EN; val &= ~DSI_CMD_MODE_CTL_IF1_ID_MASK; writel(val, d->regs + DSI_CMD_MODE_CTL); @@ -922,10 +923,11 @@ static void mcde_dsi_bridge_pre_enable(struct drm_bridge *bridge) /* Command mode, clear IF1 ID */ val = readl(d->regs + DSI_CMD_MODE_CTL); /* - * If we enable low-power mode here with - * val |= DSI_CMD_MODE_CTL_IF1_LP_EN + * If we enable low-power mode here * the display updates become really slow. */ + if (d->mdsi->mode_flags & MIPI_DSI_MODE_LPM) + val |= DSI_CMD_MODE_CTL_IF1_LP_EN; val &= ~DSI_CMD_MODE_CTL_IF1_ID_MASK; writel(val, d->regs + DSI_CMD_MODE_CTL); } -- 2.26.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel