clk: let init callback return an error code

If the init callback is allowed to request resources, it needs a return
value to report the outcome of such a request.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lkml.kernel.org/r/20190924123954.31561-3-jbrunet@baylibre.com
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/meson/clk-mpll.c

@@ -129,7 +129,7 @@ static int mpll_set_rate(struct clk_hw *hw,
 	return 0;
 }
 
-static void mpll_init(struct clk_hw *hw)
+static int mpll_init(struct clk_hw *hw)
 {
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct meson_clk_mpll_data *mpll = meson_clk_mpll_data(clk);
@@ -151,6 +151,8 @@ static void mpll_init(struct clk_hw *hw)
 	/* Set the magic misc bit if required */
 	if (MESON_PARM_APPLICABLE(&mpll->misc))
 		meson_parm_write(clk->map, &mpll->misc, 1);
+
+	return 0;
 }
 
 const struct clk_ops meson_clk_mpll_ro_ops = {

drivers/clk/meson/clk-phase.c

@@ -78,7 +78,7 @@ meson_clk_triphase_data(struct clk_regmap *clk)
 	return (struct meson_clk_triphase_data *)clk->data;
 }
 
-static void meson_clk_triphase_sync(struct clk_hw *hw)
+static int meson_clk_triphase_sync(struct clk_hw *hw)
 {
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct meson_clk_triphase_data *tph = meson_clk_triphase_data(clk);
@@ -88,6 +88,8 @@ static void meson_clk_triphase_sync(struct clk_hw *hw)
 	val = meson_parm_read(clk->map, &tph->ph0);
 	meson_parm_write(clk->map, &tph->ph1, val);
 	meson_parm_write(clk->map, &tph->ph2, val);
+
+	return 0;
 }
 
 static int meson_clk_triphase_get_phase(struct clk_hw *hw)

drivers/clk/meson/clk-pll.c

@@ -277,7 +277,7 @@ static int meson_clk_pll_wait_lock(struct clk_hw *hw)
 	return -ETIMEDOUT;
 }
 
-static void meson_clk_pll_init(struct clk_hw *hw)
+static int meson_clk_pll_init(struct clk_hw *hw)
 {
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
@@ -288,6 +288,8 @@ static void meson_clk_pll_init(struct clk_hw *hw)
 				       pll->init_count);
 		meson_parm_write(clk->map, &pll->rst, 0);
 	}
+
+	return 0;
 }
 
 static int meson_clk_pll_is_enabled(struct clk_hw *hw)

drivers/clk/meson/sclk-div.c

@@ -216,7 +216,7 @@ static int sclk_div_is_enabled(struct clk_hw *hw)
 	return 0;
 }
 
-static void sclk_div_init(struct clk_hw *hw)
+static int sclk_div_init(struct clk_hw *hw)
 {
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);
@@ -231,6 +231,8 @@ static void sclk_div_init(struct clk_hw *hw)
 		sclk->cached_div = val + 1;
 
 	sclk_div_get_duty_cycle(hw, &sclk->cached_duty);
+
+	return 0;
 }
 
 const struct clk_ops meson_sclk_div_ops = {