Driver tries to disable sclk_hdmi during re-parenting, to avoid possible glitches. It is ineffective as the clock is used also by other devices (mixer). Anyway driver works without disabling sclk_hdmi.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com --- drivers/gpu/drm/exynos/exynos_hdmi.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 583dd5e..475341f 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1569,9 +1569,7 @@ static void hdmi_mode_apply(struct hdmi_context *hdata)
hdmiphy_wait_for_pll(hdata);
- clk_disable_unprepare(hdata->res.sclk_hdmi); clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_hdmiphy); - clk_prepare_enable(hdata->res.sclk_hdmi);
/* enable HDMI and timing generator */ hdmi_start(hdata, true); @@ -1579,9 +1577,7 @@ static void hdmi_mode_apply(struct hdmi_context *hdata)
static void hdmiphy_conf_reset(struct hdmi_context *hdata) { - clk_disable_unprepare(hdata->res.sclk_hdmi); clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_pixel); - clk_prepare_enable(hdata->res.sclk_hdmi);
/* reset hdmiphy */ hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);