From patchwork Tue Nov 16 06:22:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 12621525 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4A07C433EF for ; Tue, 16 Nov 2021 06:24:12 +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 8670C6187F for ; Tue, 16 Nov 2021 06:24:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8670C6187F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1D4876EDB5; Tue, 16 Nov 2021 06:24:11 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3A0376EDA3; Tue, 16 Nov 2021 06:24:09 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 9B33961101; Tue, 16 Nov 2021 06:24:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637043849; bh=WV9KzT/ywbkRXWjgDAW62P+fnoVkE7AXsmYbCescSRs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MYcH/S5iCSliOtrXn6Zqdy9+iU8l84dwbc4HDpuDS8BlzkG9D0yvmOYDPgjpNm15m SaCeAsVWFEBSqU7cG7ziscBJHAeT7mzqJaBzh1MQQEvin8esTKB0LUO55tTKhd7qTN mAMMzZnQXKxsz2nQ8qzO3rJ77WsQ15I8cgQEIi6NgjdcB9jv7jjrvLFtygGOKu6rif /P0F3Tx+qeFVQBy8JPYDtBz3DON1UuABF881dgcZSOdYHuM1FzERsMnyu+3PiT4FYy n2SiSWKak79qhubRljKfohUcIS1kY+hIvq+F1KeVfR3J8VhnOei1mWenVIdrRWrbdK gzmFiRh2BZzjA== From: Vinod Koul To: Rob Clark Subject: [PATCH v3 11/13] drm/msm/dsi: add mode valid callback for dsi_mgr Date: Tue, 16 Nov 2021 11:52:54 +0530 Message-Id: <20211116062256.2417186-12-vkoul@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211116062256.2417186-1-vkoul@kernel.org> References: <20211116062256.2417186-1-vkoul@kernel.org> 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: Jonathan Marek , Jeffrey Hugo , David Airlie , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Abhinav Kumar , Bjorn Andersson , Vinod Koul , dri-devel@lists.freedesktop.org, Dmitry Baryshkov , freedreno@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 Signed-off-by: Vinod Koul Reviewed-by: Dmitry Baryshkov --- 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 569c8ff062ba..e7affab2fc1e 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -115,6 +115,8 @@ 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 30c1e299aa52..31d385d8d834 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -2588,6 +2588,32 @@ 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 20c4d650fd80..0ad8a53aaa0e 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -579,6 +579,17 @@ 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, @@ -600,6 +611,7 @@ 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 */