Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935111AbbKTIQc (ORCPT ); Fri, 20 Nov 2015 03:16:32 -0500 Received: from mail-io0-f196.google.com ([209.85.223.196]:35274 "EHLO mail-io0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934666AbbKTIQa (ORCPT ); Fri, 20 Nov 2015 03:16:30 -0500 From: Chris Zhong To: heiko@sntech.de, linux-rockchip@lists.infradead.org, mark.yao@rock-chips.com, treding@nvidia.com, emil.l.velikov@gmail.com Cc: airlied@linux.ie, ajaykumar.rs@samsung.com, rmk+kernel@arm.linux.org.uk, dri-devel@lists.freedesktop.org, Chris Zhong , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 03/13] drm/rockchip: return a true clock rate to adjusted_mode Date: Fri, 20 Nov 2015 16:15:29 +0800 Message-Id: <1448007339-10966-4-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1448007339-10966-1-git-send-email-zyw@rock-chips.com> References: <1448007339-10966-1-git-send-email-zyw@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1385 Lines: 45 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 --- Changes in v4: use clk_round_rate to check the clock rate in vop_crtc_mode_fixup Changes in v3: None Changes in v2: 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 5d8ae5e..eff545b 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1136,9 +1136,14 @@ 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; } -- 2.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/