drm/sun4i: frontend: Move the FIR filter phases to our quirks

The FIR filters phase depend on the SoC, so let's move it to our quirks
structure instead of removing them.
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190118145133.21281-22-paul.kocialkowski@bootlin.com

drivers/gpu/drm/sun4i/sun4i_frontend.c

@@ -438,12 +438,18 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
 	 * I have no idea what this does exactly, but it seems to be
 	 * related to the scaler FIR filter phase parameters.
 	 */
-	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZPHASE_REG, 0x400);
-	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZPHASE_REG, 0x400);
-	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE0_REG, 0x400);
-	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE0_REG, 0x400);
-	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE1_REG, 0x400);
-	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE1_REG, 0x400);
+	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZPHASE_REG,
+		     frontend->data->ch_phase[0].horzphase);
+	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZPHASE_REG,
+		     frontend->data->ch_phase[1].horzphase);
+	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE0_REG,
+		     frontend->data->ch_phase[0].vertphase[0]);
+	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE0_REG,
+		     frontend->data->ch_phase[1].vertphase[0]);
+	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE1_REG,
+		     frontend->data->ch_phase[0].vertphase[1]);
+	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE1_REG,
+		     frontend->data->ch_phase[1].vertphase[1]);
 
 	/*
 	 * Checking the input format is sufficient since we currently only
@@ -677,6 +683,16 @@ static const struct dev_pm_ops sun4i_frontend_pm_ops = {
 };
 
 static const struct sun4i_frontend_data sun8i_a33_frontend = {
+	.ch_phase		= {
+		{
+			.horzphase = 0x400,
+			.vertphase = { 0x400, 0x400 },
+		},
+		{
+			.horzphase = 0x400,
+			.vertphase = { 0x400, 0x400 },
+		},
+	},
 	.has_coef_access_ctrl	= true,
 };
 

drivers/gpu/drm/sun4i/sun4i_frontend.h

@@ -115,6 +115,11 @@ struct reset_control;
 struct sun4i_frontend_data {
 	bool	has_coef_access_ctrl;
 	bool	has_coef_rdy;
+
+	struct {
+		u32	horzphase;
+		u32	vertphase[2];
+	} ch_phase[2];
 };
 
 struct sun4i_frontend {