From patchwork Mon Mar 21 13:36:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Branchereau X-Patchwork-Id: 12787245 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 431EDC433F5 for ; Mon, 21 Mar 2022 13:37:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2F49E10E41A; Mon, 21 Mar 2022 13:37:12 +0000 (UTC) Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com [IPv6:2a00:1450:4864:20::336]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5F41010E41A for ; Mon, 21 Mar 2022 13:37:11 +0000 (UTC) Received: by mail-wm1-x336.google.com with SMTP id h16so8002821wmd.0 for ; Mon, 21 Mar 2022 06:37:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=CNEg8vlsQ11Lpgkkrda5koYAZz2XxJeEtT3/uBkpQRc=; b=EV/nk2RNA9yk3hPFxtB1ACpOjYRiBwiP7VPcXo26xviYzszA32+KYbpzTSycHKFjB+ eWgfROWMZ1YABQoZKkP5PQhRmoK+CVDBQ+oprSicpeQ89eSr9FaAMDtHxuTGQ3MGk7nW Cy97wD5J+sZem2PBDLKdRxwsYZoLbvdhWqZ8qu5Wnik+RiQcMvWJXKbB4VXZ7t+VrW7i 5TwUY2oIMPHQ4FwqVUmAhafqujQVb3xLJSkBU5b8vannihf5AX33OpPWmicwXIMYryc8 iUeDXsUec5jc3KoWMNlZnmkkQzf3BrfNOSh6RjB9ergO42IuvdsnPCpUblT55daztyTo DsfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=CNEg8vlsQ11Lpgkkrda5koYAZz2XxJeEtT3/uBkpQRc=; b=aeZkjyGxiFkOya9u3L2resSGdxOVv1ponQNjy8D+afZI4CoEYWYO3utyqjQefPYtES 43bodRUzacy/jZaceSPN0y+YpJ+VaPUxexJeAXDKNCnmDDgEFN6KnKbjJKv9tOwWsSh1 sCpfsUOirhbG9jtrZTxovCj2cbJzHYEjdYBFVUODNjciD0Pb5DVfzwrhlIbqlz6Er3ge HHytVxucwBgkgZAcgeinuCaDlE26lfnGmGwjszzK/SgoGJi1aeajEiiGAzHsIgyzbaOw KD8C0vaSyOzM3bK+AgjQz3FzbEjxzXBQmv1Zbi6Dz3nxausZ3mbZr6YHOq4qi2AqtBfY NY7A== X-Gm-Message-State: AOAM5320sTJ9zryhBvckKzdJwfcVIVeBDD2eHRUKzbiHyaN8/unMbdBp mhgpMbx7D6MrYH+fV0+kcKJApazcAj4CPw== X-Google-Smtp-Source: ABdhPJwUlJK34K9YNvvV2XWhQvy2ElJxxn4lifLxBtjMM4xkIyawSX1FrxBzpry9dKWcN+Tz8u1QQA== X-Received: by 2002:a1c:3bd5:0:b0:38c:9b9f:1b24 with SMTP id i204-20020a1c3bd5000000b0038c9b9f1b24mr7898377wma.129.1647869829735; Mon, 21 Mar 2022 06:37:09 -0700 (PDT) Received: from monk.home ([2a01:cb10:430:ec00:4737:d56e:186b:af1]) by smtp.gmail.com with ESMTPSA id w5-20020a5d5445000000b00203f8c96bcesm7969426wrv.49.2022.03.21.06.37.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Mar 2022 06:37:09 -0700 (PDT) From: Christophe Branchereau To: Paul Cercueil , David Airlie , Daniel Vetter , Thierry Reding , Sam Ravnborg , Rob Herring Subject: [PATCH v5 1/3] drm/ingenic : add ingenic_drm_bridge_atomic_enable and disable Date: Mon, 21 Mar 2022 14:36:49 +0100 Message-Id: <20220321133651.291592-2-cbranchereau@gmail.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220321133651.291592-1-cbranchereau@gmail.com> References: <20220321133651.291592-1-cbranchereau@gmail.com> MIME-Version: 1.0 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: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mips@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" ingenic_drm_bridge_atomic_enable allows the CRTC to be enabled after panels have slept out, and before their display is turned on, solving a graphical bug on the newvision nv3502c. Also add ingenic_drm_bridge_atomic_disable to balance it out. Signed-off-by: Christophe Branchereau Acked-by: Artur Rojek --- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 34 +++++++++++++++-------- 1 file changed, 23 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index dcf44cb00821..2bbfd2e7fdab 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c @@ -226,6 +226,18 @@ static int ingenic_drm_update_pixclk(struct notifier_block *nb, } } +static void ingenic_drm_bridge_atomic_enable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) +{ + struct ingenic_drm *priv = drm_device_get_priv(bridge->dev); + + regmap_write(priv->map, JZ_REG_LCD_STATE, 0); + + regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, + JZ_LCD_CTRL_ENABLE | JZ_LCD_CTRL_DISABLE, + JZ_LCD_CTRL_ENABLE); +} + static void ingenic_drm_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state) { @@ -237,28 +249,20 @@ static void ingenic_drm_crtc_atomic_enable(struct drm_crtc *crtc, if (WARN_ON(IS_ERR(priv_state))) return; - regmap_write(priv->map, JZ_REG_LCD_STATE, 0); - /* Set addresses of our DMA descriptor chains */ next_id = priv_state->use_palette ? HWDESC_PALETTE : 0; regmap_write(priv->map, JZ_REG_LCD_DA0, dma_hwdesc_addr(priv, next_id)); regmap_write(priv->map, JZ_REG_LCD_DA1, dma_hwdesc_addr(priv, 1)); - regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, - JZ_LCD_CTRL_ENABLE | JZ_LCD_CTRL_DISABLE, - JZ_LCD_CTRL_ENABLE); - drm_crtc_vblank_on(crtc); } -static void ingenic_drm_crtc_atomic_disable(struct drm_crtc *crtc, - struct drm_atomic_state *state) +static void ingenic_drm_bridge_atomic_disable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { - struct ingenic_drm *priv = drm_crtc_get_priv(crtc); + struct ingenic_drm *priv = drm_device_get_priv(bridge->dev); unsigned int var; - drm_crtc_vblank_off(crtc); - regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_DISABLE, JZ_LCD_CTRL_DISABLE); @@ -267,6 +271,12 @@ static void ingenic_drm_crtc_atomic_disable(struct drm_crtc *crtc, 1000, 0); } +static void ingenic_drm_crtc_atomic_disable(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + drm_crtc_vblank_off(crtc); +} + static void ingenic_drm_crtc_update_timings(struct ingenic_drm *priv, struct drm_display_mode *mode) { @@ -968,6 +978,8 @@ static const struct drm_encoder_helper_funcs ingenic_drm_encoder_helper_funcs = static const struct drm_bridge_funcs ingenic_drm_bridge_funcs = { .attach = ingenic_drm_bridge_attach, + .atomic_enable = ingenic_drm_bridge_atomic_enable, + .atomic_disable = ingenic_drm_bridge_atomic_disable, .atomic_check = ingenic_drm_bridge_atomic_check, .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,