summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/arm/hdlcd_crtc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/arm/hdlcd_crtc.c')
-rw-r--r--drivers/gpu/drm/arm/hdlcd_crtc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c
index 9da37d3a15c6..01e945de8165 100644
--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
+++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
@@ -170,7 +170,8 @@ static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc,
long rate, clk_rate = mode->clock * 1000;
rate = clk_round_rate(hdlcd->clk, clk_rate);
- if (rate != clk_rate) {
+ /* 0.1% seems a close enough tolerance for the TDA19988 on Juno */
+ if (abs(rate - clk_rate) * 1000 > clk_rate) {
/* clock required by mode not supported by hardware */
return -EINVAL;
}