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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 895C1C433EF for ; Thu, 17 Feb 2022 03:17:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232700AbiBQDRr (ORCPT ); Wed, 16 Feb 2022 22:17:47 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:35154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232518AbiBQDRn (ORCPT ); Wed, 16 Feb 2022 22:17:43 -0500 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA341244655; Wed, 16 Feb 2022 19:17:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1645067849; x=1676603849; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=ltDwN4iGmvMN5UU3I6oxuEr6jl6hMOfWElYOFtFmTc0=; b=ydN5N5SqwVyDR1WH7jVBSaWQDprdDqLRXwPjnsfxEtiyo0S5CA4YfSuo CpJq1n6/UOp3LiA9ngyjgt17rco6+RImKHby7rlKcM9QQutkJ0tKdBupr hOgGN+sbHIN63vHjx30OL333jYlgidKnj7BW4+Z3OZCjl92G2Pna/HGAB U=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-02.qualcomm.com with ESMTP; 16 Feb 2022 19:17:29 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2022 19:17:29 -0800 Received: from nalasex01b.na.qualcomm.com (10.47.209.197) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.15; Wed, 16 Feb 2022 19:17:28 -0800 Received: from [10.111.174.92] (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Wed, 16 Feb 2022 19:17:25 -0800 Message-ID: Date: Wed, 16 Feb 2022 19:17:23 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.5.1 Subject: Re: [REPOST PATCH v4 12/13] drm/msm/dsi: add mode valid callback for dsi_mgr Content-Language: en-US To: Vinod Koul , Rob Clark CC: Jonathan Marek , David Airlie , , , "Abhinav Kumar" , Bjorn Andersson , , "Dmitry Baryshkov" , References: <20220210103423.271016-1-vkoul@kernel.org> <20220210103423.271016-13-vkoul@kernel.org> From: Abhinav Kumar In-Reply-To: <20220210103423.271016-13-vkoul@kernel.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01b.na.qualcomm.com (10.47.209.197) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/10/2022 2:34 AM, Vinod Koul wrote: > Add a mode valid callback for dsi_mgr for checking mode being valid in > case of DSC. For DSC the height and width needs to be multiple of slice, > so we check that here > > Reviewed-by: Dmitry Baryshkov > Signed-off-by: Vinod Koul Reviewed-by: Abhinav Kumar > --- > drivers/gpu/drm/msm/dsi/dsi.h | 2 ++ > drivers/gpu/drm/msm/dsi/dsi_host.c | 26 ++++++++++++++++++++++++++ > drivers/gpu/drm/msm/dsi/dsi_manager.c | 12 ++++++++++++ > 3 files changed, 40 insertions(+) > > diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h > index 16cd9b2fce86..580a1e6358bf 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi.h > +++ b/drivers/gpu/drm/msm/dsi/dsi.h > @@ -114,6 +114,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host, > int msm_dsi_host_power_off(struct mipi_dsi_host *host); > int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, > const struct drm_display_mode *mode); > +enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, > + const struct drm_display_mode *mode); > struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); > unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); > struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host); > diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c > index 7e9913eff724..438c80750682 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi_host.c > +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c > @@ -2552,6 +2552,32 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, > return 0; > } > > +enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host, > + const struct drm_display_mode *mode) > +{ > + struct msm_dsi_host *msm_host = to_msm_dsi_host(host); > + struct msm_display_dsc_config *dsc = msm_host->dsc; > + int pic_width = mode->hdisplay; > + int pic_height = mode->vdisplay; > + > + if (!msm_host->dsc) > + return MODE_OK; > + > + if (pic_width % dsc->drm->slice_width) { > + pr_err("DSI: pic_width %d has to be multiple of slice %d\n", > + pic_width, dsc->drm->slice_width); > + return MODE_H_ILLEGAL; > + } > + > + if (pic_height % dsc->drm->slice_height) { > + pr_err("DSI: pic_height %d has to be multiple of slice %d\n", > + pic_height, dsc->drm->slice_height); > + return MODE_V_ILLEGAL; > + } > + > + return MODE_OK; > +} > + > struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host) > { > return of_drm_find_panel(to_msm_dsi_host(host)->device_node); > diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c > index f19bae475c96..e7f6cc88f7a4 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c > +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c > @@ -575,6 +575,17 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge, > msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode); > } > > +static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge, > + const struct drm_display_info *info, > + const struct drm_display_mode *mode) > +{ > + int id = dsi_mgr_bridge_get_id(bridge); > + struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); > + struct mipi_dsi_host *host = msm_dsi->host; > + > + return msm_dsi_host_check_dsc(host, mode); > +} > + > static const struct drm_connector_funcs dsi_mgr_connector_funcs = { > .detect = dsi_mgr_connector_detect, > .fill_modes = drm_helper_probe_single_connector_modes, > @@ -596,6 +607,7 @@ static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = { > .disable = dsi_mgr_bridge_disable, > .post_disable = dsi_mgr_bridge_post_disable, > .mode_set = dsi_mgr_bridge_mode_set, > + .mode_valid = dsi_mgr_bridge_mode_valid, > }; > > /* initialize connector when we're connected to a drm_panel */