From patchwork Fri Jan 29 07:34:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Yi Wang X-Patchwork-Id: 373462 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 1B142C433E0 for ; Fri, 29 Jan 2021 07:36:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C0A1E64E07 for ; Fri, 29 Jan 2021 07:36:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232319AbhA2Hgh (ORCPT ); Fri, 29 Jan 2021 02:36:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232289AbhA2HgI (ORCPT ); Fri, 29 Jan 2021 02:36:08 -0500 Received: from mail-pg1-x532.google.com (mail-pg1-x532.google.com [IPv6:2607:f8b0:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29674C06178B for ; Thu, 28 Jan 2021 23:34:52 -0800 (PST) Received: by mail-pg1-x532.google.com with SMTP id z21so6099499pgj.4 for ; Thu, 28 Jan 2021 23:34:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=jv+2JS9/1bK95pcHO0im9CAvoGtup1mDnivR04MejrA=; b=Wy5bJ3qFy8UxMKk04MxCVxkLzslgVcgIeUbeQqPPmUzi9N0uI/soGqP0zn1SWneXZp +FxeEOPdJgn6o8wRppIJC1X/QPu7VCWr2uMkRcm6IVX8GGQcJSEuuYI2nHYoSc25b5wu ARK5VW6qltB3qy1xNer6u33+8erAECyJOl40E= 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=jv+2JS9/1bK95pcHO0im9CAvoGtup1mDnivR04MejrA=; b=ifIwVSJJ7nppkEUmUO/yhLPdRgY0H8idwRow9Y8b/BEMtB+Z6GPKpUW+ewDYfc7jUL Bu6DAOuI6tFNBx0x93RKIe/cC+LVSmFYetB5K1VMsHqmTo+NClBYn2FcOwbU7Hmd9+FV CFsmd6PnVcyOfi/FAtgVPMhwEx3rG961BLYY/Y/lPlDzr6nJqz6THdyq1sJM4kYdrN0m FAuJlhBW2NTiGDkG7RVQdJzU1kWn6afv5DdBWVrSh7wyFnmUP159KVzSHc590+CPrVTL uNdanxeo3aW4HCvd3x9LJo9pJ1q4H4BupDq+GFnhImssEMmNCUHaNL13DSn6KFbPLsXp jBVA== X-Gm-Message-State: AOAM531c9YTUTUe6FMD9yJUagg6wI2TgU1npY3Zd3c0n52kcPNuVCOfw JIwTw/fKbwD5C2R+EOiUkgfiMw== X-Google-Smtp-Source: ABdhPJwf69hCMciq2Y+DX8eJKfTvpms85Hit7oril+FLzlt6OiRN8iWLPAuxIiAP5jzf6DYCWVnVGA== X-Received: by 2002:a65:498e:: with SMTP id r14mr3481282pgs.235.1611905691669; Thu, 28 Jan 2021 23:34:51 -0800 (PST) Received: from hsinyi-z840.tpe.corp.google.com ([2401:fa00:1:10:51f1:c468:a70b:7c09]) by smtp.gmail.com with ESMTPSA id p1sm7689980pfn.21.2021.01.28.23.34.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 23:34:51 -0800 (PST) From: Hsin-Yi Wang To: CK Hu , Philipp Zabel , Matthias Brugger Cc: David Airlie , Daniel Vetter , Mark Rutland , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Yongqiang Niu Subject: [PATCH v4 4/8] drm/mediatek: enable OVL_LAYER_SMI_ID_EN for multi-layer usecase Date: Fri, 29 Jan 2021 15:34:32 +0800 Message-Id: <20210129073436.2429834-5-hsinyi@chromium.org> X-Mailer: git-send-email 2.30.0.365.g02bc693789-goog In-Reply-To: <20210129073436.2429834-1-hsinyi@chromium.org> References: <20210129073436.2429834-1-hsinyi@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Yongqiang Niu enable OVL_LAYER_SMI_ID_EN for multi-layer usecase, without this patch, ovl will hang up when more than 1 layer enabled. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index da7e38a28759b..961f87f8d4d15 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -24,6 +24,7 @@ #define DISP_REG_OVL_RST 0x0014 #define DISP_REG_OVL_ROI_SIZE 0x0020 #define DISP_REG_OVL_DATAPATH_CON 0x0024 +#define OVL_LAYER_SMI_ID_EN BIT(0) #define OVL_BGCLR_SEL_IN BIT(2) #define DISP_REG_OVL_ROI_BGCLR 0x0028 #define DISP_REG_OVL_SRC_CON 0x002c @@ -62,6 +63,7 @@ struct mtk_disp_ovl_data { unsigned int gmc_bits; unsigned int layer_nr; bool fmt_rgb565_is_0; + bool smi_id_en; }; /** @@ -134,6 +136,13 @@ void mtk_ovl_start(struct device *dev) { struct mtk_disp_ovl *ovl = dev_get_drvdata(dev); + if (ovl->data->smi_id_en) { + unsigned int reg; + + reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON); + reg = reg | OVL_LAYER_SMI_ID_EN; + writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON); + } writel_relaxed(0x1, ovl->regs + DISP_REG_OVL_EN); } @@ -142,6 +151,14 @@ void mtk_ovl_stop(struct device *dev) struct mtk_disp_ovl *ovl = dev_get_drvdata(dev); writel_relaxed(0x0, ovl->regs + DISP_REG_OVL_EN); + if (ovl->data->smi_id_en) { + unsigned int reg; + + reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON); + reg = reg & ~OVL_LAYER_SMI_ID_EN; + writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON); + } + } void mtk_ovl_config(struct device *dev, unsigned int w,