From patchwork Sat May 16 21:50:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 11553789 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 692FA618 for ; Sat, 16 May 2020 23:31:19 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 489352075F for ; Sat, 16 May 2020 23:31:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="vbzCiBCH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 489352075F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=crapouillou.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 26D2F6E2B8; Sat, 16 May 2020 23:31:12 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from crapouillou.net (outils.crapouillou.net [89.234.176.41]) by gabe.freedesktop.org (Postfix) with ESMTPS id 658EA6E270 for ; Sat, 16 May 2020 21:51:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1589665875; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DZ3mFeVx2083BRizDxURnQKM6dH9xQ+CWBzj61Y2Hu0=; b=vbzCiBCHi2wej+JngAjvf72avQu2zmvEjGXRV4S8rZwzj3OiHwLirhPDrZIV79X7E1Etru sPbnhTEeclFFCBfsq/swJjUAlrYLxrvQXiU1IkUutFN0w+8tDl4FZPYpUOAfgRhIQe0A6y KFq2HVbrV0grSPM8QP0+bxJVklxVTTI= From: Paul Cercueil To: David Airlie , Daniel Vetter , Rob Herring , Greg Kroah-Hartman , "Rafael J . Wysocki" Subject: [PATCH 07/12] gpu/drm: ingenic: Set DMA descriptor chain address in probe Date: Sat, 16 May 2020 23:50:52 +0200 Message-Id: <20200516215057.392609-7-paul@crapouillou.net> In-Reply-To: <20200516215057.392609-1-paul@crapouillou.net> References: <20200516215057.392609-1-paul@crapouillou.net> MIME-Version: 1.0 X-Mailman-Approved-At: Sat, 16 May 2020 23:30:50 +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: , Cc: Paul Cercueil , devicetree@vger.kernel.org, od@zcrc.me, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The address of the DMA descriptor never changes. It can therefore be set in the probe function. Signed-off-by: Paul Cercueil --- drivers/gpu/drm/ingenic/ingenic-drm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c index 3207105755c9..e43318938e9e 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c @@ -358,8 +358,6 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc, ingenic_drm_crtc_update_ctrl(priv, finfo); clk_set_rate(priv->pix_clk, state->adjusted_mode.clock * 1000); - - regmap_write(priv->map, JZ_REG_LCD_DA0, priv->dma_hwdesc->next); } if (event) { @@ -768,6 +766,9 @@ static int ingenic_drm_probe(struct platform_device *pdev) } } + /* Set address of our DMA descriptor chain */ + regmap_write(priv->map, JZ_REG_LCD_DA0, priv->dma_hwdesc_phys); + ret = drm_dev_register(drm, 0); if (ret) { dev_err(dev, "Failed to register DRM driver");