From patchwork Thu Nov 5 12:03:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 11884205 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=-9.7 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 1AA2EC00A89 for ; Thu, 5 Nov 2020 12:05:33 +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 A2922221FA for ; Thu, 5 Nov 2020 12:05:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ti.com header.i=@ti.com header.b="sukRlZ6a" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A2922221FA Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E2AE86EB12; Thu, 5 Nov 2020 12:05:29 +0000 (UTC) Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by gabe.freedesktop.org (Postfix) with ESMTPS id 981646EB13 for ; Thu, 5 Nov 2020 12:05:28 +0000 (UTC) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0A5C5LVR070606; Thu, 5 Nov 2020 06:05:21 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1604577921; bh=F0sdBXDra4RhR9L7GRWYFpitThd/irsQ2IgXYN1EwfA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=sukRlZ6aqdzium0xvVAUrAY5HczAPim5Hjaxr6vRzb+XawBLTegPujodb+BA0Z9Xb Y14osMNLZtwOxTMLPVCLZJoaF9pIiwAuOC2j0V2sxdid9LlZt+eySmB7lYTjVS8aDl x00qkvb+OFJcLE6hBf8hzx/eqvXoF4XNHqhZl6ik= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0A5C5LAL043629 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 5 Nov 2020 06:05:21 -0600 Received: from DLEE103.ent.ti.com (157.170.170.33) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Thu, 5 Nov 2020 06:05:21 -0600 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Thu, 5 Nov 2020 06:05:21 -0600 Received: from deskari.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0A5C3rfX039111; Thu, 5 Nov 2020 06:05:19 -0600 From: Tomi Valkeinen To: Sebastian Reichel , Laurent Pinchart , Nikhil Devshatwar , , Subject: [PATCH v3 35/56] drm/omap: dsi: implement check timings Date: Thu, 5 Nov 2020 14:03:12 +0200 Message-ID: <20201105120333.947408-36-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201105120333.947408-1-tomi.valkeinen@ti.com> References: <20201105120333.947408-1-tomi.valkeinen@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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: Tony Lindgren , "H . Nikolaus Schaller" , Tomi Valkeinen , Sekhar Nori , Sebastian Reichel Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Sebastian Reichel Implement check timings, which will check if its possible to configure the clocks for the provided mode using the same code as the set_config() hook. Signed-off-by: Sebastian Reichel Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/omapdrm/dss/dsi.c | 70 +++++++++++++++++++------------ 1 file changed, 44 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c index a1a867a7d91d..f643321434e9 100644 --- a/drivers/gpu/drm/omapdrm/dss/dsi.c +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c @@ -280,6 +280,11 @@ struct dsi_isr_tables { struct dsi_isr_data isr_table_cio[DSI_MAX_NR_ISRS]; }; +struct dsi_lp_clock_info { + unsigned long lp_clk; + u16 lp_clk_div; +}; + struct dsi_clk_calc_ctx { struct dsi_data *dsi; struct dss_pll *pll; @@ -294,16 +299,12 @@ struct dsi_clk_calc_ctx { struct dss_pll_clock_info dsi_cinfo; struct dispc_clock_info dispc_cinfo; + struct dsi_lp_clock_info user_lp_cinfo; struct videomode vm; struct omap_dss_dsi_videomode_timings dsi_vm; }; -struct dsi_lp_clock_info { - unsigned long lp_clk; - u16 lp_clk_div; -}; - struct dsi_module_id_data { u32 address; int id; @@ -4789,44 +4790,55 @@ static bool dsi_is_video_mode(struct omap_dss_device *dssdev) return (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE); } -static int dsi_set_config(struct omap_dss_device *dssdev, - const struct drm_display_mode *mode) +static int __dsi_calc_config(struct dsi_data *dsi, + const struct drm_display_mode *mode, + struct dsi_clk_calc_ctx *ctx) { - struct dsi_data *dsi = to_dsi_data(dssdev); - struct dsi_clk_calc_ctx ctx; - struct videomode vm; struct omap_dss_dsi_config cfg = dsi->config; + struct videomode vm; bool ok; int r; drm_display_mode_to_videomode(mode, &vm); - cfg.vm = &vm; - - mutex_lock(&dsi->lock); + cfg.vm = &vm; cfg.mode = dsi->mode; cfg.pixel_format = dsi->pix_fmt; if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) - ok = dsi_vm_calc(dsi, &cfg, &ctx); + ok = dsi_vm_calc(dsi, &cfg, ctx); else - ok = dsi_cm_calc(dsi, &cfg, &ctx); + ok = dsi_cm_calc(dsi, &cfg, ctx); - if (!ok) { - DSSERR("failed to find suitable DSI clock settings\n"); - r = -EINVAL; - goto err; - } + if (!ok) + return -EINVAL; + + dsi_pll_calc_dsi_fck(dsi, &ctx->dsi_cinfo); - dsi_pll_calc_dsi_fck(dsi, &ctx.dsi_cinfo); + r = dsi_lp_clock_calc(ctx->dsi_cinfo.clkout[HSDIV_DSI], + cfg.lp_clk_min, cfg.lp_clk_max, &ctx->user_lp_cinfo); + if (r) + return r; + + return 0; +} - r = dsi_lp_clock_calc(ctx.dsi_cinfo.clkout[HSDIV_DSI], - cfg.lp_clk_min, cfg.lp_clk_max, &dsi->user_lp_cinfo); +static int dsi_set_config(struct omap_dss_device *dssdev, + const struct drm_display_mode *mode) +{ + struct dsi_data *dsi = to_dsi_data(dssdev); + struct dsi_clk_calc_ctx ctx; + int r; + + mutex_lock(&dsi->lock); + + r = __dsi_calc_config(dsi, mode, &ctx); if (r) { - DSSERR("failed to find suitable DSI LP clock settings\n"); + DSSERR("failed to find suitable DSI clock settings\n"); goto err; } + dsi->user_lp_cinfo = ctx.user_lp_cinfo; dsi->user_dsi_cinfo = ctx.dsi_cinfo; dsi->user_dispc_cinfo = ctx.dispc_cinfo; @@ -5004,11 +5016,17 @@ static void dsi_set_timings(struct omap_dss_device *dssdev, static int dsi_check_timings(struct omap_dss_device *dssdev, struct drm_display_mode *mode) { + struct dsi_data *dsi = to_dsi_data(dssdev); + struct dsi_clk_calc_ctx ctx; + int r; + DSSDBG("dsi_check_timings\n"); - /* TODO */ + mutex_lock(&dsi->lock); + r = __dsi_calc_config(dsi, mode, &ctx); + mutex_unlock(&dsi->lock); - return 0; + return r; } static int dsi_connect(struct omap_dss_device *src,