diff options
| author | Giulio Benetti <giulio.benetti@micronovasrl.com> | 2018-02-28 17:46:53 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2018-03-01 10:41:27 +0100 |
| commit | e64b6afa98f3629d0c0c46233bbdbe8acdb56f06 (patch) | |
| tree | c3a92ee1cb2e64f09ab710b02b8d3d6ad08f55c4 | |
| parent | 9a191b114906457c4b2494c474f58ae4142d4e67 (diff) | |
drm/sun4i: Fix dclk_set_phase
Phase value is not shifted before writing.
Shift left of 28 bits to fit right bits
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1519836413-35023-1-git-send-email-giulio.benetti@micronovasrl.com
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_dotclock.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_dotclock.c b/drivers/gpu/drm/sun4i/sun4i_dotclock.c index 023f39bda633..e36004fbe453 100644 --- a/drivers/gpu/drm/sun4i/sun4i_dotclock.c +++ b/drivers/gpu/drm/sun4i/sun4i_dotclock.c @@ -132,10 +132,13 @@ static int sun4i_dclk_get_phase(struct clk_hw *hw) static int sun4i_dclk_set_phase(struct clk_hw *hw, int degrees) { struct sun4i_dclk *dclk = hw_to_dclk(hw); + u32 val = degrees / 120; + + val <<= 28; regmap_update_bits(dclk->regmap, SUN4I_TCON0_IO_POL_REG, GENMASK(29, 28), - degrees / 120); + val); return 0; } |