From e98c7952db1a832c671ef70d00bfe0365069e5ff Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Wed, 5 Jun 2019 14:53:20 +0200 Subject: drm/meson: fix G12A HDMI PLL settings for 4K60 1000/1001 variations The Amlogic G12A HDMI PLL needs some specific settings to lock with different fractional values for the 5,4GHz mode. Handle the 1000/1001 variation fractional case here to avoid having the PLL in an non lockable state. Fixes: 202b9808f8ed ("drm/meson: Add G12A Video Clock setup") Signed-off-by: Neil Armstrong Reviewed-by: Kevin Hilman Link: https://patchwork.freedesktop.org/patch/msgid/20190605125320.8708-1-narmstrong@baylibre.com --- drivers/gpu/drm/meson/meson_vclk.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_vclk.c b/drivers/gpu/drm/meson/meson_vclk.c index 58b4af5fbb6d..26732f038d19 100644 --- a/drivers/gpu/drm/meson/meson_vclk.c +++ b/drivers/gpu/drm/meson/meson_vclk.c @@ -503,8 +503,17 @@ void meson_hdmi_pll_set_params(struct meson_drm *priv, unsigned int m, /* G12A HDMI PLL Needs specific parameters for 5.4GHz */ if (m >= 0xf7) { - regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL4, 0xea68dc00); - regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL5, 0x65771290); + if (frac < 0x10000) { + regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL4, + 0x6a685c00); + regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL5, + 0x11551293); + } else { + regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL4, + 0xea68dc00); + regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL5, + 0x65771290); + } regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL6, 0x39272000); regmap_write(priv->hhi, HHI_HDMI_PLL_CNTL7, 0x55540000); } else { -- cgit