drm/bridge: tc358768: remove unused variable

Remove the unused phy_delay_nsk variable, before it was wrongly used
to compute some register value, the fixed computation is no longer using
it and therefore can be removed.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230427142934.55435-10-francesco@dolcini.it

drivers/gpu/drm/bridge/tc358768.c

@@ -642,7 +642,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
 	u32 val, val2, lptxcnt, hact, data_type;
 	s32 raw_val;
 	const struct drm_display_mode *mode;
-	u32 dsibclk_nsk, dsiclk_nsk, ui_nsk, phy_delay_nsk;
+	u32 dsibclk_nsk, dsiclk_nsk, ui_nsk;
 	u32 dsiclk, dsibclk, video_start;
 	const u32 internal_delay = 40;
 	int ret, i;
@@ -726,11 +726,9 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
 				  dsibclk);
 	dsiclk_nsk = (u32)div_u64((u64)1000000000 * TC358768_PRECISION, dsiclk);
 	ui_nsk = dsiclk_nsk / 2;
-	phy_delay_nsk = dsibclk_nsk + 2 * dsiclk_nsk;
 	dev_dbg(priv->dev, "dsiclk_nsk: %u\n", dsiclk_nsk);
 	dev_dbg(priv->dev, "ui_nsk: %u\n", ui_nsk);
 	dev_dbg(priv->dev, "dsibclk_nsk: %u\n", dsibclk_nsk);
-	dev_dbg(priv->dev, "phy_delay_nsk: %u\n", phy_delay_nsk);
 
 	/* LP11 > 100us for D-PHY Rx Init */
 	val = tc358768_ns_to_cnt(100 * 1000, dsibclk_nsk) - 1;