From patchwork Wed Dec 16 10:10:11 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Zhong X-Patchwork-Id: 7860581 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 8D6C49F387 for ; Wed, 16 Dec 2015 10:12:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C015720254 for ; Wed, 16 Dec 2015 10:12:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F1D09202AE for ; Wed, 16 Dec 2015 10:12:35 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1a993E-00071r-RY; Wed, 16 Dec 2015 10:11:16 +0000 Received: from mail-pf0-f170.google.com ([209.85.192.170]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1a992p-0006iC-QU; Wed, 16 Dec 2015 10:10:53 +0000 Received: by mail-pf0-f170.google.com with SMTP id 68so9933710pfc.1; Wed, 16 Dec 2015 02:10:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=NjvVyDSE+lk13gyYwur88YPcir6J9KL0domICmZmOKI=; b=OO+Sj+BmaSPF9Bmmi1kXuLo7XphpkN6aOQQLJRvSisMaLB3aFjNPwVx3iPyVRHCnv/ nZEuXP1eLcG5An6zEXelwD51UEh/+ylvsG/IiagwBfxFHahXpzDeTo28NOByv2V0dVel FomRybmzvhJt+weEo2dXwyZps55ZrbsHXKG+cEB8BDtPjMDGvto3Df2Z/g7WySbzLbay G45lKN5ON7ww4H/Ewys7xav92CmmgeS5mu/krSiylMylbjuwsxiapnwwDav5xYZzoML9 CQGEdlOLgr4CEtXFQg77QZ9F0u8hfgtExdhRpDJGSguwK6ukaPVMFkquG8Kr+UiwHlhy CeSg== X-Received: by 10.98.80.139 with SMTP id g11mr4063799pfj.68.1450260630453; Wed, 16 Dec 2015 02:10:30 -0800 (PST) Received: from localhost.localdomain ([103.29.142.67]) by smtp.gmail.com with ESMTPSA id u14sm3688263pfi.58.2015.12.16.02.10.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 16 Dec 2015 02:10:29 -0800 (PST) From: Chris Zhong To: heiko@sntech.de, linux-rockchip@lists.infradead.org, mark.yao@rock-chips.com, treding@nvidia.com Subject: [PATCH v6 1/6] drm/rockchip: return a true clock rate to adjusted_mode Date: Wed, 16 Dec 2015 18:10:11 +0800 Message-Id: <1450260616-21160-2-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1450260616-21160-1-git-send-email-zyw@rock-chips.com> References: <1450260616-21160-1-git-send-email-zyw@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151216_021052_059300_EA03D319 X-CRM114-Status: GOOD ( 10.74 ) X-Spam-Score: -2.3 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chris Zhong , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, 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-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Since the mipi dsi driver need to use the clock of vop to make the calculation of Blanking. But sometimes the clock driver can not set a accurate clock_rate for vop, get it by clk_round_rate before mode_set, so we can get the true value. Signed-off-by: Chris Zhong Acked-by: Mark Yao --- Changes in v6: None Changes in v5: None Changes in v4: - use clk_round_rate to check the clock rate in vop_crtc_mode_fixup Changes in v3: None drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 696e977..d9ec780 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1146,9 +1146,14 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { + struct vop *vop = to_vop(crtc); + if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0) return false; + adjusted_mode->clock = + clk_round_rate(vop->dclk, mode->clock * 1000) / 1000; + return true; }