From patchwork Fri Jan 26 13:17:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Escande X-Patchwork-Id: 10187861 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 45EF16056A for ; Sun, 28 Jan 2018 12:44:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 356A92879E for ; Sun, 28 Jan 2018 12:44:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2A244287A6; Sun, 28 Jan 2018 12:44:57 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham 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 9B88B2879E for ; Sun, 28 Jan 2018 12:44:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8CAA76E18F; Sun, 28 Jan 2018 12:41:28 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id D9A9F6E417 for ; Fri, 26 Jan 2018 13:18:02 +0000 (UTC) Received: from localhost.localdomain (unknown [IPv6:2a01:e35:8a7e:4790:a8d7:ca4:7b4f:7f87]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: tescande) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 32D3027470B; Fri, 26 Jan 2018 13:18:01 +0000 (GMT) From: Thierry Escande To: Archit Taneja , Inki Dae , Thierry Reding , Sandy Huang , Sean Paul , David Airlie , Tomasz Figa Subject: [PATCH v2 34/43] drm/rockchip: pre dither down when output bpc is 8bit Date: Fri, 26 Jan 2018 14:17:01 +0100 Message-Id: <20180126131710.7622-35-thierry.escande@collabora.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180126131710.7622-1-thierry.escande@collabora.com> References: <20180126131710.7622-1-thierry.escande@collabora.com> MIME-Version: 1.0 Content-Transfert-Encoding: 8bit X-Mailman-Approved-At: Sun, 28 Jan 2018 12:41:07 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zain Wang , Lin Huang , Douglas Anderson , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Yakir Yang , =?UTF-8?q?=C3=98rjan=20Eide?= , Mark Yao , Haixia Shi Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Mark Yao Some encoder have a crc verification check, crc check fail if input and output data is not equal. That means encoder input and output need use same color depth, vop can output 10bit data to encoder, but some panel only support 8bit depth, that would make crc check die. So pre dither down vop data to 8bit if panel's bpc is 8. Signed-off-by: Mark Yao [seanpaul resolved conflict in rockchip_drm_vop.c] Signed-off-by: Sean Paul Signed-off-by: Thierry Escande --- drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 2 ++ drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 1 + drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 6 ++++++ drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 1 + drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 1 + 5 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index 8c884f9ce713..b3f46ed24cdc 100644 --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c @@ -218,6 +218,7 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder *encoder, struct drm_connector_state *conn_state) { struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state); + struct drm_display_info *di = &conn_state->connector->display_info; /* * The hardware IC designed that VOP must output the RGB10 video @@ -229,6 +230,7 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder *encoder, s->output_mode = ROCKCHIP_OUT_MODE_AAAA; s->output_type = DRM_MODE_CONNECTOR_eDP; + s->output_bpc = di->bpc; return 0; } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h index 9c064a40458b..3a6ebfc26036 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h @@ -36,6 +36,7 @@ struct rockchip_crtc_state { struct drm_crtc_state base; int output_type; int output_mode; + int output_bpc; }; #define to_rockchip_crtc_state(s) \ container_of(s, struct rockchip_crtc_state, base) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index bf4b1a2f3fa4..4abb9d72d814 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -937,6 +937,12 @@ static void vop_crtc_atomic_enable(struct drm_crtc *crtc, if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA && !(vop_data->feature & VOP_FEATURE_OUTPUT_RGB10)) s->output_mode = ROCKCHIP_OUT_MODE_P888; + + if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA && s->output_bpc == 8) + VOP_REG_SET(vop, common, pre_dither_down, 1); + else + VOP_REG_SET(vop, common, pre_dither_down, 0); + VOP_REG_SET(vop, common, out_mode, s->output_mode); VOP_REG_SET(vop, modeset, htotal_pw, (htotal << 16) | hsync_len); diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h index 56bbd2e2a8ef..084acdd0019a 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h @@ -67,6 +67,7 @@ struct vop_common { struct vop_reg cfg_done; struct vop_reg dsp_blank; struct vop_reg data_blank; + struct vop_reg pre_dither_down; struct vop_reg dither_down; struct vop_reg dither_up; struct vop_reg gate_en; diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index 2e4eea3459fe..08023d3ecb76 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -264,6 +264,7 @@ static const struct vop_common rk3288_common = { .standby = VOP_REG_SYNC(RK3288_SYS_CTRL, 0x1, 22), .gate_en = VOP_REG(RK3288_SYS_CTRL, 0x1, 23), .mmu_en = VOP_REG(RK3288_SYS_CTRL, 0x1, 20), + .pre_dither_down = VOP_REG(RK3288_DSP_CTRL1, 0x1, 1), .dither_down = VOP_REG(RK3288_DSP_CTRL1, 0xf, 1), .dither_up = VOP_REG(RK3288_DSP_CTRL1, 0x1, 6), .data_blank = VOP_REG(RK3288_DSP_CTRL0, 0x1, 19),