From patchwork Tue Mar 26 13:45:24 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: archit taneja X-Patchwork-Id: 2337181 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 34A293FD40 for ; Tue, 26 Mar 2013 13:46:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934441Ab3CZNqs (ORCPT ); Tue, 26 Mar 2013 09:46:48 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:35682 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934405Ab3CZNqr (ORCPT ); Tue, 26 Mar 2013 09:46:47 -0400 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r2QDkjpp017050; Tue, 26 Mar 2013 08:46:45 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r2QDkjmA029530; Tue, 26 Mar 2013 08:46:45 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Tue, 26 Mar 2013 08:46:45 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id r2QDkjLM017524; Tue, 26 Mar 2013 08:46:45 -0500 Received: from localhost (a0393947pc.apr.dhcp.ti.com [172.24.136.59]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r2QDkhV13747; Tue, 26 Mar 2013 08:46:43 -0500 (CDT) From: Archit Taneja To: , , CC: , , , Archit Taneja Subject: [PATCH v2 7/8] OMAPDSS: DISPC: Configure doublestride for NV12 when using 2D Tiler buffers Date: Tue, 26 Mar 2013 19:15:24 +0530 Message-ID: <1364305525-28496-8-git-send-email-archit@ti.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1364305525-28496-1-git-send-email-archit@ti.com> References: <1362493070-17706-1-git-send-email-archit@ti.com> <1364305525-28496-1-git-send-email-archit@ti.com> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org When using a DISPC video pipeline to a fetch a NV12 buffer in a 2D container, we need to set set a doublestride bit in the video pipe's ATTRIBUTES register. This is needed because the stride for the UV plane(using a 16 bit Tiler container) is double the stride for the Y plane(using a 8 bit Tiler container) for the 0 or 180 degree views. The ROW_INC register is meant for the Y plane, and the HW will calculate the row increment needed for the UV plane by using double the stride value based on whether this bit is set or not. Set the bit when we are using a 2D Tiler buffer and when rotation is 0 or 180 degrees. The stride value is the same for 90 and 270 degree Tiler views, hence the bit shouldn't be set. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dispc.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 73a730a..ddbf031 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -1588,6 +1588,7 @@ static void dispc_ovl_set_scaling(enum omap_plane plane, } static void dispc_ovl_set_rotation_attrs(enum omap_plane plane, u8 rotation, + enum omap_dss_rotation_type rotation_type, bool mirroring, enum omap_color_mode color_mode) { bool row_repeat = false; @@ -1638,6 +1639,15 @@ static void dispc_ovl_set_rotation_attrs(enum omap_plane plane, u8 rotation, if (dss_has_feature(FEAT_ROWREPEATENABLE)) REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), row_repeat ? 1 : 0, 18, 18); + + if (color_mode == OMAP_DSS_COLOR_NV12) { + bool doublestride = (rotation_type == OMAP_DSS_ROT_TILER) && + (rotation == OMAP_DSS_ROT_0 || + rotation == OMAP_DSS_ROT_180); + /* DOUBLESTRIDE */ + REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), doublestride, 22, 22); + } + } static int color_mode_to_bpp(enum omap_color_mode color_mode) @@ -2516,7 +2526,8 @@ static int dispc_ovl_setup_common(enum omap_plane plane, dispc_ovl_set_vid_color_conv(plane, cconv); } - dispc_ovl_set_rotation_attrs(plane, rotation, mirror, color_mode); + dispc_ovl_set_rotation_attrs(plane, rotation, rotation_type, mirror, + color_mode); dispc_ovl_set_zorder(plane, caps, zorder); dispc_ovl_set_pre_mult_alpha(plane, caps, pre_mult_alpha);