From patchwork Thu Jul 12 08:36:30 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kumar, Mahesh" X-Patchwork-Id: 10521275 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B9CBD6028E for ; Thu, 12 Jul 2018 08:36:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 975BA29356 for ; Thu, 12 Jul 2018 08:36:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8BC3829512; Thu, 12 Jul 2018 08:36:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 065E229356 for ; Thu, 12 Jul 2018 08:36:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9AE926EEC3; Thu, 12 Jul 2018 08:35:55 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id C2D456EEAC; Thu, 12 Jul 2018 08:35:38 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Jul 2018 01:35:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,342,1526367600"; d="scan'208";a="66346331" Received: from unknown (HELO localhost.localdomain) ([10.223.25.241]) by orsmga003.jf.intel.com with ESMTP; 12 Jul 2018 01:35:36 -0700 From: Mahesh Kumar To: intel-gfx@lists.freedesktop.org Date: Thu, 12 Jul 2018 14:06:30 +0530 Message-Id: <20180712083635.7472-6-mahesh1.kumar@intel.com> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180712083635.7472-1-mahesh1.kumar@intel.com> References: <20180712083635.7472-1-mahesh1.kumar@intel.com> Subject: [Intel-gfx] [PATCH 05/10] drm/rcar-du/crc: Implement verify_crc_source callback X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent.pinchart@ideasonboard.com, dri-devel@lists.freedesktop.org MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP This patch implements "verify_crc_source" callback function for rcar drm driver. Changes Since V1: - avoid duplication of code Signed-off-by: Mahesh Kumar Cc: dri-devel@lists.freedesktop.org Cc: Laurent Pinchart Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 66 +++++++++++++++++++++++++++------- 1 file changed, 53 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 15dc9caa128b..7124918372f8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -756,17 +756,66 @@ static void rcar_du_crtc_disable_vblank(struct drm_crtc *crtc) rcrtc->vblank_enable = false; } +static int rcar_du_get_plane_index(struct drm_crtc *crtc, + const char *source_name, + unsigned int *index) +{ + struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + unsigned int i; + int ret = 0; + + ret = kstrtouint(source_name + strlen("plane"), 10, index); + if (ret < 0) + return ret; + + for (i = 0; i < rcrtc->vsp->num_planes; ++i) { + if (*index == rcrtc->vsp->planes[i].plane.base.id) { + *index = i; + break; + } + } + + if (i >= rcrtc->vsp->num_planes) + return -EINVAL; + + return ret; +} + +static int rcar_du_crtc_verify_crc_source(struct drm_crtc *crtc, + const char *source_name, + size_t *values_cnt) +{ + int ret; + unsigned int index; + /* + * Parse the source name. Supported values are "plane%u" to compute the + * CRC on an input plane (%u is the plane ID), and "auto" to compute the + * CRC on the composer (VSP) output. + */ + if (!source_name || !strcmp(source_name, "auto")) { + goto out; + } else if (strstarts(source_name, "plane")) { + ret = rcar_du_get_plane_index(crtc, source_name, &index); + if (ret < 0) + return ret; + } else { + return -EINVAL; + } + +out: + *values_cnt = 1; + return 0; +} + static int rcar_du_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name, size_t *values_cnt) { - struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); struct drm_modeset_acquire_ctx ctx; struct drm_crtc_state *crtc_state; struct drm_atomic_state *state; enum vsp1_du_crc_source source; unsigned int index = 0; - unsigned int i; int ret; /* @@ -781,19 +830,9 @@ static int rcar_du_crtc_set_crc_source(struct drm_crtc *crtc, } else if (strstarts(source_name, "plane")) { source = VSP1_DU_CRC_PLANE; - ret = kstrtouint(source_name + strlen("plane"), 10, &index); + ret = rcar_du_get_plane_index(crtc, source_name, &index); if (ret < 0) return ret; - - for (i = 0; i < rcrtc->vsp->num_planes; ++i) { - if (index == rcrtc->vsp->planes[i].plane.base.id) { - index = i; - break; - } - } - - if (i >= rcrtc->vsp->num_planes) - return -EINVAL; } else { return -EINVAL; } @@ -861,6 +900,7 @@ static const struct drm_crtc_funcs crtc_funcs_gen3 = { .enable_vblank = rcar_du_crtc_enable_vblank, .disable_vblank = rcar_du_crtc_disable_vblank, .set_crc_source = rcar_du_crtc_set_crc_source, + .verify_crc_source = rcar_du_crtc_verify_crc_source, }; /* -----------------------------------------------------------------------------