drm/stm/lvds: convert from round_rate() to determine_rate()

The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.

Acked-by: Raphael Gallais-Pou <[e-mail]>
Signed-off-by: Brian Masney <[e-mail]>
Acked-by: Yannick Fertre <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Raphael Gallais-Pou <[e-mail]>

drivers/gpu/drm/stm/lvds.c

···
 	return (unsigned long)lvds->pixel_clock_rate;
 }
 
-static long lvds_pixel_clk_round_rate(struct clk_hw *hw, unsigned long rate,
-				      unsigned long *parent_rate)
+static int lvds_pixel_clk_determine_rate(struct clk_hw *hw,
+					 struct clk_rate_request *req)
 {
 	struct stm_lvds *lvds = container_of(hw, struct stm_lvds, lvds_ck_px);
 	unsigned int pll_in_khz, bdiv = 0, mdiv = 0, ndiv = 0;
···
 	mode = list_first_entry(&connector->modes,
 				struct drm_display_mode, head);
 
-	pll_in_khz = (unsigned int)(*parent_rate / 1000);
+	pll_in_khz = (unsigned int)(req->best_parent_rate / 1000);
 
 	if (lvds_is_dual_link(lvds->link_type))
 		multiplier = 2;
···
 	lvds->pixel_clock_rate = (unsigned long)pll_get_clkout_khz(pll_in_khz, bdiv, mdiv, ndiv)
 					 * 1000 * multiplier / 7;
 
-	return lvds->pixel_clock_rate;
+	req->rate = lvds->pixel_clock_rate;
+
+	return 0;
 }
 
 static const struct clk_ops lvds_pixel_clk_ops = {
 	.enable = lvds_pixel_clk_enable,
 	.disable = lvds_pixel_clk_disable,
 	.recalc_rate = lvds_pixel_clk_recalc_rate,
-	.round_rate = lvds_pixel_clk_round_rate,
+	.determine_rate = lvds_pixel_clk_determine_rate,
 };
 
 static const struct clk_init_data clk_data = {