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drm/tilcdc: fix pixel clock setting warning message
The warning message did not printed the LCD pixel clock rate but the LCD clock divisor input rate. As a consequence, the required and real pixel clock rates are now passed to the tilcdc_pclk_diff(). Signed-off-by: Dario Binacchi <dariobin@libero.it> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Jyri Sarha <jyri.sarha@iki.fi> Link: https://patchwork.freedesktop.org/patch/msgid/20210322213337.26667-4-dariobin@libero.it
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1 changed files with 5 additions and 5 deletions
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@ -203,7 +203,7 @@ static void tilcdc_crtc_set_clk(struct drm_crtc *crtc)
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struct drm_device *dev = crtc->dev;
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struct drm_device *dev = crtc->dev;
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struct tilcdc_drm_private *priv = dev->dev_private;
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struct tilcdc_drm_private *priv = dev->dev_private;
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struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
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struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
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unsigned long clk_rate, real_rate, real_pclk_rate, pclk_rate;
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unsigned long clk_rate, real_pclk_rate, pclk_rate;
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unsigned int clkdiv;
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unsigned int clkdiv;
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int ret;
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int ret;
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@ -239,12 +239,12 @@ static void tilcdc_crtc_set_clk(struct drm_crtc *crtc)
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* 5% is an arbitrary value - LCDs are usually quite tolerant
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* 5% is an arbitrary value - LCDs are usually quite tolerant
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* about pixel clock rates.
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* about pixel clock rates.
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*/
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*/
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real_rate = clkdiv * pclk_rate;
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real_pclk_rate = clk_rate / clkdiv;
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if (tilcdc_pclk_diff(clk_rate, real_rate) > 5) {
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if (tilcdc_pclk_diff(pclk_rate, real_pclk_rate) > 5) {
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dev_warn(dev->dev,
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dev_warn(dev->dev,
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"effective pixel clock rate (%luHz) differs from the calculated rate (%luHz)\n",
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"effective pixel clock rate (%luHz) differs from the requested rate (%luHz)\n",
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clk_rate, real_rate);
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real_pclk_rate, pclk_rate);
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}
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}
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}
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}
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