From patchwork Tue Mar 8 13:06:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Branchereau X-Patchwork-Id: 12773766 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3AA6EC4332F for ; Tue, 8 Mar 2022 13:07:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347124AbiCHNIQ (ORCPT ); Tue, 8 Mar 2022 08:08:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234311AbiCHNHx (ORCPT ); Tue, 8 Mar 2022 08:07:53 -0500 Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B857948316; Tue, 8 Mar 2022 05:06:56 -0800 (PST) Received: by mail-wr1-x432.google.com with SMTP id x15so28425981wru.13; Tue, 08 Mar 2022 05:06:56 -0800 (PST) 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=kABsl8nFckhHhGe72PdD4LYbj+x9bM4gFy/8W5Qq+ys=; b=CeNbbGSqvyasiw3aKrSWBu+ByZiMzoj0xOyu80rURPjmzSMameTQ41nAx19Gr6BGiR rvKB/ErAp7bOr0L8qDoNIYLdOEAUvQYU12U8QGY6McoiVecBP+DzZa+EojmmHKqfFfaF d570wz2HMUlTB6yeNWfcoM1b3TwXxa5eEphl++JfoJN7aUPEW3OIeG0yJmV/w+gSBthD msrX+vxehJVzaksBhyXTJcNdefwZzeGDEmoyRcJtaNiXOajJpX7bZKpn/+OMF6rPTOpD 28Dj0H0G9MuiLhBVAylZLydjWTQ941HvZ9fNALjvr7IbBKx3Jz/pkIxYmaNVXRtncmSi onoQ== 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=kABsl8nFckhHhGe72PdD4LYbj+x9bM4gFy/8W5Qq+ys=; b=iAypBLL3QnbcxJMKBaeZ5FwaTy7NYf/N2ih/G0ohOvZFf/jXqwxJAX/awYYiSHHqnV DeIbfJGjuRaEWZnmtHMFNLumsNv2zA/lK5ADlWMGu6OV1g0H84dwrSJHib6ExiqeLyoH 9uj9eZXHmSLhSoQbQQklUxpazytfmoaFO0FOh1ZxLboIfrnsQTQIHRSYPeie2BklQuKT +Q4JFI0I/wvGRFcs84ZDi9XTPl94+8QrhyEVcD6C2o/gmdZg2bS2hwCUSp4F+SLQpn7G cpIF/OnqM+dfHAeNanKJRqB73PdTsbDnlSxaNwCY2yuAs1NrOi4wsKckPC7IUN1OotW0 usAg== X-Gm-Message-State: AOAM532QIGmiSyxZQ62zlJo/fnq0ZUaSmG0D43WXjXL3QdFIO/9eO72r 80tAVWXYU5EqqUcNIi22dBg= X-Google-Smtp-Source: ABdhPJyQTsNDK4VxbuzBVRU4ohQD6eHLp6t1D2aSuYrQhwZeUjA0ogkAH1NuopdvNJL7wd5OE6WbLw== X-Received: by 2002:a5d:5850:0:b0:1f0:2d5b:dc35 with SMTP id i16-20020a5d5850000000b001f02d5bdc35mr12095290wrf.344.1646744815193; Tue, 08 Mar 2022 05:06:55 -0800 (PST) Received: from monk.home ([2a01:cb10:430:ec00:4737:d56e:186b:af1]) by smtp.gmail.com with ESMTPSA id p15-20020a05600c1d8f00b003899d50f01csm2129159wms.6.2022.03.08.05.06.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Mar 2022 05:06:54 -0800 (PST) From: Christophe Branchereau To: Paul Cercueil , David Airlie , Daniel Vetter , Thierry Reding , Sam Ravnborg , Rob Herring Cc: linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v2 1/4] drm/ingenic : add ingenic_drm_bridge_atomic_enable Date: Tue, 8 Mar 2022 14:06:40 +0100 Message-Id: <20220308130643.260683-2-cbranchereau@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220308130643.260683-1-cbranchereau@gmail.com> References: <20220308130643.260683-1-cbranchereau@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org This 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 Signed-off-by: Christophe Branchereau --- drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c index dcf44cb00821..51512f41263e 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) { @@ -237,17 +249,11 @@ 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); } @@ -968,6 +974,7 @@ 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_check = ingenic_drm_bridge_atomic_check, .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,