Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757744AbbKSDhT (ORCPT ); Wed, 18 Nov 2015 22:37:19 -0500 Received: from mail-ig0-f174.google.com ([209.85.213.174]:37299 "EHLO mail-ig0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757726AbbKSDhO (ORCPT ); Wed, 18 Nov 2015 22:37:14 -0500 From: Chris Zhong To: heiko@sntech.de, linux-rockchip@lists.infradead.org, Mark Yao Cc: Chris Zhong , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, David Airlie , linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 03/12] drm/rockchip: return a true clock rate to adjusted_mode Date: Thu, 19 Nov 2015 11:35:21 +0800 Message-Id: <1447904131-29328-4-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1447904131-29328-1-git-send-email-zyw@rock-chips.com> References: <1447904131-29328-1-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: 1346 Lines: 39 Sometimes the clock driver can not set a accurate clock_rate for vop, get the true rate of vop_dclk and set it back to adjusted_mode, since the mipi dsi driver need to use the clock to make the calculation of Blanking. Signed-off-by: Chris Zhong --- Changes in v3: None Changes in v2: None drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 5d8ae5e..9986b311ed 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1232,6 +1232,12 @@ static int vop_crtc_mode_set(struct drm_crtc *crtc, reset_control_deassert(vop->dclk_rst); clk_set_rate(vop->dclk, adjusted_mode->clock * 1000); + + /* + * Sometimes the clock driver can not set a accurate clock_rate for vop, + * get the true rate of vop_dclk and set it back to adjusted_mode. + */ + adjusted_mode->clock = clk_get_rate(vop->dclk) / 1000; out: ret_clk = clk_enable(vop->dclk); if (ret_clk < 0) { -- 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/