From patchwork Mon Jul 23 10:38:24 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kumar, Mahesh" X-Patchwork-Id: 10539875 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B5884112E for ; Mon, 23 Jul 2018 10:37:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A44F928595 for ; Mon, 23 Jul 2018 10:37:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 985B8285CB; Mon, 23 Jul 2018 10:37:15 +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 4B47328595 for ; Mon, 23 Jul 2018 10:37:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D1F266E420; Mon, 23 Jul 2018 10:37:11 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 965D16E41C; Mon, 23 Jul 2018 10:37:09 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Jul 2018 03:37:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,393,1526367600"; d="scan'208";a="66768056" Received: from unknown (HELO localhost.localdomain) ([10.223.25.241]) by FMSMGA003.fm.intel.com with ESMTP; 23 Jul 2018 03:37:05 -0700 From: Mahesh Kumar To: intel-gfx@lists.freedesktop.org Date: Mon, 23 Jul 2018 16:08:24 +0530 Message-Id: <20180723103824.21734-1-mahesh1.kumar@intel.com> X-Mailer: git-send-email 2.16.2 In-Reply-To: <1880807.NPALksyAMY@avalon> References: <1880807.NPALksyAMY@avalon> Subject: [Intel-gfx] [PATCH v5 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 , 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 Changes Since V2: - further optimize the code Changes Since V3: - Adopt to driver style - Address review comments from Laurent Pinchart Signed-off-by: Mahesh Kumar Cc: dri-devel@lists.freedesktop.org Cc: Laurent Pinchart Reviewed-by: Maarten Lankhorst Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 69 ++++++++++++++++++++++++---------- 1 file changed, 49 insertions(+), 20 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..80226cac88e2 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -756,17 +756,11 @@ static void rcar_du_crtc_disable_vblank(struct drm_crtc *crtc) rcrtc->vblank_enable = false; } -static int rcar_du_crtc_set_crc_source(struct drm_crtc *crtc, - const char *source_name, - size_t *values_cnt) +static int rcar_du_crtc_parse_crc_source(struct rcar_du_crtc *rcrtc, + const char *source_name, + enum vsp1_du_crc_source *source) { - 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; + unsigned int index; int ret; /* @@ -774,30 +768,64 @@ static int rcar_du_crtc_set_crc_source(struct drm_crtc *crtc, * CRC on an input plane (%u is the plane ID), and "auto" to compute the * CRC on the composer (VSP) output. */ + if (!source_name) { - source = VSP1_DU_CRC_NONE; + *source = VSP1_DU_CRC_NONE; + return 0; } else if (!strcmp(source_name, "auto")) { - source = VSP1_DU_CRC_OUTPUT; + *source = VSP1_DU_CRC_OUTPUT; + return 0; } else if (strstarts(source_name, "plane")) { - source = VSP1_DU_CRC_PLANE; + unsigned int i; + + *source = VSP1_DU_CRC_PLANE; 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 (index == rcrtc->vsp->planes[i].plane.base.id) + return i; } + } - if (i >= rcrtc->vsp->num_planes) - return -EINVAL; - } else { + return -EINVAL; +} + +static int rcar_du_crtc_verify_crc_source(struct drm_crtc *crtc, + const char *source_name, + size_t *values_cnt) +{ + struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + enum vsp1_du_crc_source source; + + if (rcar_du_crtc_parse_crc_source(rcrtc, source_name, &source) < 0) { + DRM_DEBUG_DRIVER("unknown source %s\n", source_name); return -EINVAL; } + *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; + int ret; + + ret = rcar_du_crtc_parse_crc_source(rcrtc, source_name, &source); + if (ret < 0) + return ret; + + index = ret; *values_cnt = 1; /* Perform an atomic commit to set the CRC source. */ @@ -861,6 +889,7 @@ 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, }; /* -----------------------------------------------------------------------------