From patchwork Thu Sep 13 12:15:02 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: archit taneja X-Patchwork-Id: 1451921 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 1B021DF24C for ; Thu, 13 Sep 2012 12:16:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757975Ab2IMMP6 (ORCPT ); Thu, 13 Sep 2012 08:15:58 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:52162 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757971Ab2IMMP5 (ORCPT ); Thu, 13 Sep 2012 08:15:57 -0400 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id q8DCFuiJ001502; Thu, 13 Sep 2012 07:15:56 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id q8DCFufU031120; Thu, 13 Sep 2012 07:15:56 -0500 Received: from dlelxv23.itg.ti.com (172.17.1.198) by dfle72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.1.323.3; Thu, 13 Sep 2012 07:15:56 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlelxv23.itg.ti.com (8.13.8/8.13.8) with ESMTP id q8DCFuC4018692; Thu, 13 Sep 2012 07:15:56 -0500 Received: from localhost (a0393947pc.apr.dhcp.ti.com [172.24.137.248]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id q8DCFsw07835; Thu, 13 Sep 2012 07:15:55 -0500 (CDT) From: Archit Taneja To: CC: , , Archit Taneja Subject: [PATCH 18/21] OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup() Date: Thu, 13 Sep 2012 17:45:02 +0530 Message-ID: <1347538505-25359-19-git-send-email-archit@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1347538505-25359-1-git-send-email-archit@ti.com> References: <1347538505-25359-1-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 Configure some of the writeback specific parameters in dispc_wb_setup(). The writeback parameters configured are: truncation: This needs to be set if the color depth input to writeback is more than the color depth of the color mode we want to store in memory. writeback mode: This configures whether we want to use writeback in mem to mem or capture mode. This information will be directly passed by APPLY later. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dispc.c | 26 +++++++++++++++++++++++++- drivers/video/omap2/dss/dss.h | 2 +- 2 files changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index f575875..a44cbac 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -2465,13 +2465,15 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi, } int dispc_wb_setup(const struct omap_dss_writeback_info *wi, - const struct omap_video_timings *mgr_timings) + bool mem_to_mem, const struct omap_video_timings *mgr_timings) { int r; + u32 l; enum omap_plane plane = OMAP_DSS_WB; const int pos_x = 0, pos_y = 0; const u8 zorder = 0, global_alpha = 0; const bool replication = false; + bool truncation; int in_width = mgr_timings->x_res; int in_height = mgr_timings->y_res; unsigned long out_rate; @@ -2491,6 +2493,28 @@ int dispc_wb_setup(const struct omap_dss_writeback_info *wi, wi->mirror, zorder, wi->pre_mult_alpha, global_alpha, wi->rotation_type, replication, mgr_timings); + switch (wi->color_mode) { + case OMAP_DSS_COLOR_RGB16: + case OMAP_DSS_COLOR_RGB24P: + case OMAP_DSS_COLOR_ARGB16: + case OMAP_DSS_COLOR_RGBA16: + case OMAP_DSS_COLOR_RGB12U: + case OMAP_DSS_COLOR_ARGB16_1555: + case OMAP_DSS_COLOR_XRGB16_1555: + case OMAP_DSS_COLOR_RGBX16: + truncation = true; + break; + default: + truncation = false; + break; + } + + /* setup extra DISPC_WB_ATTRIBUTES */ + l = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane)); + l = FLD_MOD(l, truncation, 10, 10); /* TRUNCATIONENABLE */ + l = FLD_MOD(l, mem_to_mem, 19, 19); /* WRITEBACKMODE */ + dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), l); + return r; } diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index bd7c5cf..c49c054 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -483,7 +483,7 @@ void dispc_mgr_setup(enum omap_channel channel, void dispc_wb_set_channel_in(enum dss_writeback_channel channel); int dispc_wb_setup(const struct omap_dss_writeback_info *wi, - const struct omap_video_timings *timings); + bool mem_to_mem, const struct omap_video_timings *timings); /* VENC */ #ifdef CONFIG_OMAP2_DSS_VENC