[PATCH 06/20] drm/sun4i: allow dclk to modify its parent rate

Maxime Ripard
2016-05-16T12:47:06Z

The pixel clock being only a divider of its parent clock, depending on the
resolution, it's expected to change its parent rate. Add that flag so that
the clock framework knows it.

Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support")
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/gpu/drm/sun4i/sun4i_dotclock.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_dotclock.c b/drivers/gpu/drm/sun4i/sun4i_dotclock.c
index 1ddf6d7a7107..5b3463197c48 100644
--- a/drivers/gpu/drm/sun4i/sun4i_dotclock.c
+++ b/drivers/gpu/drm/sun4i/sun4i_dotclock.c
@@ -170,6 +170,7 @@ int sun4i_dclk_create(struct device *dev, struct sun4i_tcon *tcon)
init.ops = &sun4i_dclk_ops;
init.parent_names = &parent_name;
init.num_parents = 1;
+ init.flags = CLK_SET_RATE_PARENT;

dclk->regmap = tcon->regs;
dclk->hw.init = &init;
--
2.8.2