From patchwork Sun Jan 29 13:24:42 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Keeping X-Patchwork-Id: 9544039 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 19AD260415 for ; Sun, 29 Jan 2017 13:29:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0C29A204C1 for ; Sun, 29 Jan 2017 13:29:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 011E327F88; Sun, 29 Jan 2017 13:29:30 +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=-1.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, T_DKIM_INVALID autolearn=no version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C02A1204C1 for ; Sun, 29 Jan 2017 13:29:30 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cXpXt-0006Vn-Le; Sun, 29 Jan 2017 13:29:29 +0000 Received: from casper.infradead.org ([85.118.1.10]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cXpUJ-0003xp-3g; Sun, 29 Jan 2017 13:25:47 +0000 Received: from dougal.metanate.com ([90.155.101.14] helo=metanate.com) by casper.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cXpUC-00055Z-2j; Sun, 29 Jan 2017 13:25:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=simple/simple; d=metanate.com; s=stronger; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=up1IS6EeKyOPPnQEjn7fMalcqm9RRG/Lxhr9KUoX638=; b=q1PeTZiq1SoO5sDfoNDS9EA4eehPASTYBOa+T31uj/F8tZ+YOD8DyUDoBXM/mcoFcxKupJ90lBk4FrmSPVSAzaM43lc/VjWTJsP1UkJYNOBsKmUxGEei/TB3CMC3d0Yl2AqJw9KTtqv5+JNcm5FT7U23ka+3LdIo6dfIxJNf3GsnIKYP2OxWf4JEQN8OnDghcHp3edinFkznRCz3Lvyy/qR8DZkdK8Bqz0qEOv3RbUvdNjBr4PNCJQhAg6RaQk0zbtCPyI33ofdJZMoUK0m2RpuVeDB6RFXduwgcfj+jPBadilxkbhhqGrVlOAlC+RewyeVuRplu9G4TiitL9WYDWw==; Received: from johnkeeping.plus.com ([81.174.171.191] helo=localhost.localdomain) by shrek.metanate.com with esmtpsa (TLSv1.2:DHE-RSA-AES128-GCM-SHA256:128) (Exim 4.83_RC2) (envelope-from ) id 1cXpTo-000362-7E; Sun, 29 Jan 2017 13:25:16 +0000 From: John Keeping To: Mark Yao Subject: [PATCH v3 22/24] drm/rockchip: dw-mipi-dsi: support non-burst modes Date: Sun, 29 Jan 2017 13:24:42 +0000 Message-Id: <20170129132444.25251-23-john@metanate.com> X-Mailer: git-send-email 2.11.0.197.gb556de5.dirty In-Reply-To: <20170129132444.25251-1-john@metanate.com> References: <20170129132444.25251-1-john@metanate.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170129_132540_247389_3AEFF71E X-CRM114-Status: GOOD ( 10.17 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, John Keeping , Chris Zhong , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: John Keeping Reviewed-by: Chris Zhong Reviewed-by: Sean Paul --- v3: - Add Chris' Reviewed-by Unchanged in v2 drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 5bad92e2370e..58cb8ace2fe8 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -82,6 +82,7 @@ #define FRAME_BTA_ACK BIT(14) #define ENABLE_LOW_POWER (0x3f << 8) #define ENABLE_LOW_POWER_MASK (0x3f << 8) +#define VID_MODE_TYPE_NON_BURST_SYNC_EVENTS 0x1 #define VID_MODE_TYPE_BURST_SYNC_PULSES 0x2 #define VID_MODE_TYPE_MASK 0x3 @@ -286,6 +287,7 @@ struct dw_mipi_dsi { u32 format; u16 input_div; u16 feedback_div; + unsigned long mode_flags; const struct dw_mipi_dsi_plat_data *pdata; }; @@ -551,15 +553,10 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host, return -EINVAL; } - if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) || - !(device->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)) { - dev_err(dsi->dev, "device mode is unsupported\n"); - return -EINVAL; - } - dsi->lanes = device->lanes; dsi->channel = device->channel; dsi->format = device->format; + dsi->mode_flags = device->mode_flags; dsi->panel = of_drm_find_panel(device->dev.of_node); if (dsi->panel) return drm_panel_attach(dsi->panel, &dsi->connector); @@ -716,7 +713,12 @@ static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi) { u32 val; - val = VID_MODE_TYPE_BURST_SYNC_PULSES | ENABLE_LOW_POWER; + val = ENABLE_LOW_POWER; + + if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) + val |= VID_MODE_TYPE_BURST_SYNC_PULSES; + else if (!(dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)) + val |= VID_MODE_TYPE_NON_BURST_SYNC_EVENTS; dsi_write(dsi, DSI_VID_MODE_CFG, val); }