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[PATCH v3 03/12] drm/rockchip: return a true clock rate to adjusted_mode

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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 <zyw@rock-chips.com>
---

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

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Thread

[PATCH v3 00/12] Add mipi dsi support for rk3288 Chris Zhong <zyw@rock-chips.com> - 2015-11-19 04:40 +0100
  [PATCH v3 11/12] drm/panel: simple: Add boe,tv080wum-nl0 simple panel device tree binding Chris Zhong <zyw@rock-chips.com> - 2015-11-19 04:40 +0100
    Re: [PATCH v3 11/12] drm/panel: simple: Add boe,tv080wum-nl0 simple  panel device tree binding Rob Herring <robh@kernel.org> - 2015-11-19 18:30 +0100
  [PATCH v3 06/12] drm/bridge: Add Synopsys DesignWare MIPI DSI host controller driver Chris Zhong <zyw@rock-chips.com> - 2015-11-19 04:40 +0100
  [PATCH v3 09/12] ARM: dts: rockchip: add rk3288 mipi_dsi nodes Chris Zhong <zyw@rock-chips.com> - 2015-11-19 04:40 +0100
  [PATCH v3 03/12] drm/rockchip: return a true clock rate to adjusted_mode Chris Zhong <zyw@rock-chips.com> - 2015-11-19 04:40 +0100
    Re: [PATCH v3 03/12] drm/rockchip: return a true clock rate to adjusted_mode Mark yao <mark.yao@rock-chips.com> - 2015-11-19 08:10 +0100
      Re: [PATCH v3 03/12] drm/rockchip: return a true clock rate to  adjusted_mode Chris Zhong <zyw@rock-chips.com> - 2015-11-19 09:20 +0100
  [PATCH v3 12/12] ARM: dts: rockchip: add support mipi panel tv080wum-nl0 for rk3288-evb Chris Zhong <zyw@rock-chips.com> - 2015-11-19 04:50 +0100
  Re: [PATCH v3 00/12] Add mipi dsi support for rk3288 Emil Velikov <emil.l.velikov@gmail.com> - 2015-11-19 15:50 +0100
    Re: [PATCH v3 00/12] Add mipi dsi support for rk3288 Chris Zhong <zyw@rock-chips.com> - 2015-11-20 08:10 +0100
      Re: [PATCH v3 00/12] Add mipi dsi support for rk3288 Emil Velikov <emil.l.velikov@gmail.com> - 2015-11-20 13:30 +0100

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