diff options
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_drv.c')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_drv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index f8892e9ad169..b1ac61eac056 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -184,10 +184,13 @@ static int cpufreq_transition(struct notifier_block *nb, { struct tilcdc_drm_private *priv = container_of(nb, struct tilcdc_drm_private, freq_transition); + if (val == CPUFREQ_POSTCHANGE) { if (priv->lcd_fck_rate != clk_get_rate(priv->clk)) { + drm_modeset_lock_crtc(priv->crtc, NULL); priv->lcd_fck_rate = clk_get_rate(priv->clk); tilcdc_crtc_update_clk(priv->crtc); + drm_modeset_unlock_crtc(priv->crtc); } } |