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drm/sun4i: Set the coef_rdy bit right after the coef have been set

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The COEF_RDY bit is used to tell the hardware that new FIR filters
coefficients have been written to the registers and that the hardware
should take them into account starting next frame.

Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-20-paul.kocialkowski@bootlin.com
This commit is contained in:
Maxime Ripard 2019-01-18 15:51:29 +01:00
parent 35f366544c
commit c2c7560f7a
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1 changed files with 4 additions and 0 deletions
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drivers/gpu/drm/sun4i/sun4i_frontend.c
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@ -96,6 +96,10 @@ static void sun4i_frontend_scaler_init(struct sun4i_frontend *frontend)
sun4i_frontend_vert_coef[i]);
}
regmap_write_bits(frontend->regs,
SUN4I_FRONTEND_FRM_CTRL_REG,
SUN4I_FRONTEND_FRM_CTRL_COEF_RDY,
SUN4I_FRONTEND_FRM_CTRL_COEF_RDY);
}
int sun4i_frontend_init(struct sun4i_frontend *frontend)