Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull more clk updates from Stephen Boyd:

 - A handful of fixes for lmk04832 driver

 - Migrate the basic clk divider to use determine rate ops

 - Fix modpost build for hisilicon hi3559a driver

 - Actually set the parent in k210_clk_set_parent()

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  Revert "clk: divider: Switch from .round_rate to .determine_rate by default"
  clk: hisilicon: hi3559a: Drop __init markings everywhere
  clk: meson: regmap: switch to determine_rate for the dividers
  clk: divider: Switch from .round_rate to .determine_rate by default
  clk: divider: Add re-usable determine_rate implementations
  clk: k210: Fix k210_clk_set_parent()
  clk: lmk04832: Fix spelling mistakes in dev_err messages and comments
  clk: lmk04832: fix return value check in lmk04832_probe()
  clk: stm32mp1: fix missing spin_lock_init()

drivers/clk/clk-divider.c

@@ -343,16 +343,63 @@ static int clk_divider_bestdiv(struct clk_hw *hw, struct clk_hw *parent,
 	return bestdiv;
 }
 
+int divider_determine_rate(struct clk_hw *hw, struct clk_rate_request *req,
+			   const struct clk_div_table *table, u8 width,
+			   unsigned long flags)
+{
+	int div;
+
+	div = clk_divider_bestdiv(hw, req->best_parent_hw, req->rate,
+				  &req->best_parent_rate, table, width, flags);
+
+	req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(divider_determine_rate);
+
+int divider_ro_determine_rate(struct clk_hw *hw, struct clk_rate_request *req,
+			      const struct clk_div_table *table, u8 width,
+			      unsigned long flags, unsigned int val)
+{
+	int div;
+
+	div = _get_div(table, val, flags, width);
+
+	/* Even a read-only clock can propagate a rate change */
+	if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
+		if (!req->best_parent_hw)
+			return -EINVAL;
+
+		req->best_parent_rate = clk_hw_round_rate(req->best_parent_hw,
+							  req->rate * div);
+	}
+
+	req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(divider_ro_determine_rate);
+
 long divider_round_rate_parent(struct clk_hw *hw, struct clk_hw *parent,
 			       unsigned long rate, unsigned long *prate,
 			       const struct clk_div_table *table,
 			       u8 width, unsigned long flags)
 {
-	int div;
+	struct clk_rate_request req = {
+		.rate = rate,
+		.best_parent_rate = *prate,
+		.best_parent_hw = parent,
+	};
+	int ret;
 
-	div = clk_divider_bestdiv(hw, parent, rate, prate, table, width, flags);
+	ret = divider_determine_rate(hw, &req, table, width, flags);
+	if (ret)
+		return ret;
 
-	return DIV_ROUND_UP_ULL((u64)*prate, div);
+	*prate = req.best_parent_rate;
+
+	return req.rate;
 }
 EXPORT_SYMBOL_GPL(divider_round_rate_parent);
 
@@ -361,23 +408,23 @@ long divider_ro_round_rate_parent(struct clk_hw *hw, struct clk_hw *parent,
 				  const struct clk_div_table *table, u8 width,
 				  unsigned long flags, unsigned int val)
 {
-	int div;
-
-	div = _get_div(table, val, flags, width);
+	struct clk_rate_request req = {
+		.rate = rate,
+		.best_parent_rate = *prate,
+		.best_parent_hw = parent,
+	};
+	int ret;
 
-	/* Even a read-only clock can propagate a rate change */
-	if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) {
-		if (!parent)
-			return -EINVAL;
+	ret = divider_ro_determine_rate(hw, &req, table, width, flags, val);
+	if (ret)
+		return ret;
 
-		*prate = clk_hw_round_rate(parent, rate * div);
-	}
+	*prate = req.best_parent_rate;
 
-	return DIV_ROUND_UP_ULL((u64)*prate, div);
+	return req.rate;
 }
 EXPORT_SYMBOL_GPL(divider_ro_round_rate_parent);
 
-
 static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
 				unsigned long *prate)
 {

drivers/clk/clk-k210.c

@@ -722,6 +722,7 @@ static int k210_clk_set_parent(struct clk_hw *hw, u8 index)
 		reg |= BIT(cfg->mux_bit);
 	else
 		reg &= ~BIT(cfg->mux_bit);
+	writel(reg, ksc->regs + cfg->mux_reg);
 	spin_unlock_irqrestore(&ksc->clk_lock, flags);
 
 	return 0;

drivers/clk/clk-lmk04832.c

@@ -519,7 +519,7 @@ static long lmk04832_vco_round_rate(struct clk_hw *hw, unsigned long rate,
 
 	vco_rate = lmk04832_calc_pll2_params(*prate, rate, &n, &p, &r);
 	if (vco_rate < 0) {
-		dev_err(lmk->dev, "PLL2 parmeters out of range\n");
+		dev_err(lmk->dev, "PLL2 parameters out of range\n");
 		return vco_rate;
 	}
 
@@ -550,7 +550,7 @@ static int lmk04832_vco_set_rate(struct clk_hw *hw, unsigned long rate,
 
 	vco_rate = lmk04832_calc_pll2_params(prate, rate, &n, &p, &r);
 	if (vco_rate < 0) {
-		dev_err(lmk->dev, "failed to determine PLL2 parmeters\n");
+		dev_err(lmk->dev, "failed to determine PLL2 parameters\n");
 		return vco_rate;
 	}
 
@@ -573,7 +573,7 @@ static int lmk04832_vco_set_rate(struct clk_hw *hw, unsigned long rate,
 
 	/*
 	 * PLL2_N registers must be programmed after other PLL2 dividers are
-	 * programed to ensure proper VCO frequency calibration
+	 * programmed to ensure proper VCO frequency calibration
 	 */
 	ret = regmap_write(lmk->regmap, LMK04832_REG_PLL2_N_0,
 			   FIELD_GET(0x030000, n));
@@ -1120,7 +1120,7 @@ static int lmk04832_dclk_set_rate(struct clk_hw *hw, unsigned long rate,
 		return -EINVAL;
 	}
 
-	/* Enable Duty Cycle Corretion */
+	/* Enable Duty Cycle Correction */
 	if (dclk_div == 1) {
 		ret = regmap_update_bits(lmk->regmap,
 					 LMK04832_REG_CLKOUT_CTRL3(dclk->id),
@@ -1425,23 +1425,23 @@ static int lmk04832_probe(struct spi_device *spi)
 
 	lmk->dclk = devm_kcalloc(lmk->dev, info->num_channels >> 1,
 				 sizeof(struct lmk_dclk), GFP_KERNEL);
-	if (IS_ERR(lmk->dclk)) {
-		ret = PTR_ERR(lmk->dclk);
+	if (!lmk->dclk) {
+		ret = -ENOMEM;
 		goto err_disable_oscin;
 	}
 
 	lmk->clkout = devm_kcalloc(lmk->dev, info->num_channels,
 				   sizeof(*lmk->clkout), GFP_KERNEL);
-	if (IS_ERR(lmk->clkout)) {
-		ret = PTR_ERR(lmk->clkout);
+	if (!lmk->clkout) {
+		ret = -ENOMEM;
 		goto err_disable_oscin;
 	}
 
 	lmk->clk_data = devm_kzalloc(lmk->dev, struct_size(lmk->clk_data, hws,
 							   info->num_channels),
 				     GFP_KERNEL);
-	if (IS_ERR(lmk->clk_data)) {
-		ret = PTR_ERR(lmk->clk_data);
+	if (!lmk->clk_data) {
+		ret = -ENOMEM;
 		goto err_disable_oscin;
 	}
 

drivers/clk/clk-stm32mp1.c

@@ -2263,6 +2263,7 @@ static int stm32_rcc_reset_init(struct device *dev, void __iomem *base,
 	if (!reset_data)
 		return -ENOMEM;
 
+	spin_lock_init(&reset_data->lock);
 	reset_data->membase = base;
 	reset_data->rcdev.owner = THIS_MODULE;
 	reset_data->rcdev.ops = &stm32_reset_ops;

drivers/clk/hisilicon/clk-hi3559a.c

@@ -107,25 +107,25 @@ static const struct hisi_fixed_rate_clock hi3559av100_fixed_rate_clks_crg[] = {
 };
 
 
-static const char *fmc_mux_p[] __initconst = {
+static const char *fmc_mux_p[] = {
 	"24m", "75m", "125m", "150m", "200m", "250m", "300m", "400m"
 };
 
-static const char *mmc_mux_p[] __initconst = {
+static const char *mmc_mux_p[] = {
 	"100k", "25m", "49p5m", "99m", "187p5m", "150m", "198m", "400k"
 };
 
-static const char *sysapb_mux_p[] __initconst = {
+static const char *sysapb_mux_p[] = {
 	"24m", "50m",
 };
 
-static const char *sysbus_mux_p[] __initconst = {
+static const char *sysbus_mux_p[] = {
 	"24m", "300m"
 };
 
-static const char *uart_mux_p[] __initconst = { "50m", "24m", "3m" };
+static const char *uart_mux_p[] = { "50m", "24m", "3m" };
 
-static const char *a73_clksel_mux_p[] __initconst = {
+static const char *a73_clksel_mux_p[] = {
 	"24m", "apll", "1000m"
 };
 
@@ -136,7 +136,7 @@ static const u32 sysbus_mux_table[]	= { 0, 1 };
 static const u32 uart_mux_table[]	= { 0, 1, 2 };
 static const u32 a73_clksel_mux_table[] = { 0, 1, 2 };
 
-static struct hisi_mux_clock hi3559av100_mux_clks_crg[] __initdata = {
+static struct hisi_mux_clock hi3559av100_mux_clks_crg[] = {
 	{
 		HI3559AV100_FMC_MUX, "fmc_mux", fmc_mux_p, ARRAY_SIZE(fmc_mux_p),
 		CLK_SET_RATE_PARENT, 0x170, 2, 3, 0, fmc_mux_table,
@@ -181,7 +181,7 @@ static struct hisi_mux_clock hi3559av100_mux_clks_crg[] __initdata = {
 	},
 };
 
-static struct hisi_gate_clock hi3559av100_gate_clks[] __initdata = {
+static struct hisi_gate_clock hi3559av100_gate_clks[] = {
 	{
 		HI3559AV100_FMC_CLK, "clk_fmc", "fmc_mux",
 		CLK_SET_RATE_PARENT, 0x170, 1, 0,
@@ -336,7 +336,7 @@ static struct hisi_gate_clock hi3559av100_gate_clks[] __initdata = {
 	},
 };
 
-static struct hi3559av100_pll_clock hi3559av100_pll_clks[] __initdata = {
+static struct hi3559av100_pll_clock hi3559av100_pll_clks[] = {
 	{
 		HI3559AV100_APLL_CLK, "apll", NULL, 0x0, 0, 24, 24, 3, 28, 3,
 		0x4, 0, 12, 12, 6
@@ -502,7 +502,7 @@ static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,
 	}
 }
 
-static __init struct hisi_clock_data *hi3559av100_clk_register(
+static struct hisi_clock_data *hi3559av100_clk_register(
 	struct platform_device *pdev)
 {
 	struct hisi_clock_data *clk_data;
@@ -549,7 +549,7 @@ static __init struct hisi_clock_data *hi3559av100_clk_register(
 	return ERR_PTR(ret);
 }
 
-static __init void hi3559av100_clk_unregister(struct platform_device *pdev)
+static void hi3559av100_clk_unregister(struct platform_device *pdev)
 {
 	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
 
@@ -568,8 +568,7 @@ static const struct hisi_crg_funcs hi3559av100_crg_funcs = {
 	.unregister_clks = hi3559av100_clk_unregister,
 };
 
-static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[]
-	__initdata = {
+static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[] = {
 	{ HI3559AV100_SHUB_SOURCE_SOC_24M, "clk_source_24M", NULL, 0, 24000000UL, },
 	{ HI3559AV100_SHUB_SOURCE_SOC_200M, "clk_source_200M", NULL, 0, 200000000UL, },
 	{ HI3559AV100_SHUB_SOURCE_SOC_300M, "clk_source_300M", NULL, 0, 300000000UL, },
@@ -587,16 +586,16 @@ static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[]
 
 /* shub mux clk */
 static u32 shub_source_clk_mux_table[] = {0, 1, 2, 3};
-static const char *shub_source_clk_mux_p[] __initconst = {
+static const char *shub_source_clk_mux_p[] = {
 	"clk_source_24M", "clk_source_200M", "clk_source_300M", "clk_source_PLL"
 };
 
 static u32 shub_uart_source_clk_mux_table[] = {0, 1, 2, 3};
-static const char *shub_uart_source_clk_mux_p[] __initconst = {
+static const char *shub_uart_source_clk_mux_p[] = {
 	"clk_uart_32K", "clk_uart_div_clk", "clk_uart_div_clk", "clk_source_24M"
 };
 
-static struct hisi_mux_clock hi3559av100_shub_mux_clks[] __initdata = {
+static struct hisi_mux_clock hi3559av100_shub_mux_clks[] = {
 	{
 		HI3559AV100_SHUB_SOURCE_CLK, "shub_clk", shub_source_clk_mux_p,
 		ARRAY_SIZE(shub_source_clk_mux_p),
@@ -615,7 +614,7 @@ static struct hisi_mux_clock hi3559av100_shub_mux_clks[] __initdata = {
 static struct clk_div_table shub_spi_clk_table[] = {{0, 8}, {1, 4}, {2, 2}};
 static struct clk_div_table shub_uart_div_clk_table[] = {{1, 8}, {2, 4}};
 
-static struct hisi_divider_clock hi3559av100_shub_div_clks[] __initdata = {
+static struct hisi_divider_clock hi3559av100_shub_div_clks[] = {
 	{ HI3559AV100_SHUB_SPI_SOURCE_CLK, "clk_spi_clk", "shub_clk", 0, 0x20, 24, 2,
 	  CLK_DIVIDER_ALLOW_ZERO, shub_spi_clk_table,
 	},
@@ -625,7 +624,7 @@ static struct hisi_divider_clock hi3559av100_shub_div_clks[] __initdata = {
 };
 
 /* shub gate clk */
-static struct hisi_gate_clock hi3559av100_shub_gate_clks[] __initdata = {
+static struct hisi_gate_clock hi3559av100_shub_gate_clks[] = {
 	{
 		HI3559AV100_SHUB_SPI0_CLK, "clk_shub_spi0", "clk_spi_clk",
 		0, 0x20, 1, 0,
@@ -697,7 +696,7 @@ static int hi3559av100_shub_default_clk_set(void)
 	return 0;
 }
 
-static __init struct hisi_clock_data *hi3559av100_shub_clk_register(
+static struct hisi_clock_data *hi3559av100_shub_clk_register(
 	struct platform_device *pdev)
 {
 	struct hisi_clock_data *clk_data = NULL;
@@ -751,7 +750,7 @@ static __init struct hisi_clock_data *hi3559av100_shub_clk_register(
 	return ERR_PTR(ret);
 }
 
-static __init void hi3559av100_shub_clk_unregister(struct platform_device *pdev)
+static void hi3559av100_shub_clk_unregister(struct platform_device *pdev)
 {
 	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);
 

drivers/clk/meson/clk-regmap.c

@@ -75,8 +75,8 @@ static unsigned long clk_regmap_div_recalc_rate(struct clk_hw *hw,
 				   div->width);
 }
 
-static long clk_regmap_div_round_rate(struct clk_hw *hw, unsigned long rate,
-				      unsigned long *prate)
+static int clk_regmap_div_determine_rate(struct clk_hw *hw,
+					 struct clk_rate_request *req)
 {
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct clk_regmap_div_data *div = clk_get_regmap_div_data(clk);
@@ -87,18 +87,17 @@ static long clk_regmap_div_round_rate(struct clk_hw *hw, unsigned long rate,
 	if (div->flags & CLK_DIVIDER_READ_ONLY) {
 		ret = regmap_read(clk->map, div->offset, &val);
 		if (ret)
-			/* Gives a hint that something is wrong */
-			return 0;
+			return ret;
 
 		val >>= div->shift;
 		val &= clk_div_mask(div->width);
 
-		return divider_ro_round_rate(hw, rate, prate, div->table,
-					     div->width, div->flags, val);
+		return divider_ro_determine_rate(hw, req, div->table,
+						 div->width, div->flags, val);
 	}
 
-	return divider_round_rate(hw, rate, prate, div->table, div->width,
-				  div->flags);
+	return divider_determine_rate(hw, req, div->table, div->width,
+				      div->flags);
 }
 
 static int clk_regmap_div_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -123,14 +122,14 @@ static int clk_regmap_div_set_rate(struct clk_hw *hw, unsigned long rate,
 
 const struct clk_ops clk_regmap_divider_ops = {
 	.recalc_rate = clk_regmap_div_recalc_rate,
-	.round_rate = clk_regmap_div_round_rate,
+	.determine_rate = clk_regmap_div_determine_rate,
 	.set_rate = clk_regmap_div_set_rate,
 };
 EXPORT_SYMBOL_GPL(clk_regmap_divider_ops);
 
 const struct clk_ops clk_regmap_divider_ro_ops = {
 	.recalc_rate = clk_regmap_div_recalc_rate,
-	.round_rate = clk_regmap_div_round_rate,
+	.determine_rate = clk_regmap_div_determine_rate,
 };
 EXPORT_SYMBOL_GPL(clk_regmap_divider_ro_ops);
 

include/linux/clk-provider.h

@@ -629,6 +629,12 @@ long divider_ro_round_rate_parent(struct clk_hw *hw, struct clk_hw *parent,
 				  unsigned long rate, unsigned long *prate,
 				  const struct clk_div_table *table, u8 width,
 				  unsigned long flags, unsigned int val);
+int divider_determine_rate(struct clk_hw *hw, struct clk_rate_request *req,
+			   const struct clk_div_table *table, u8 width,
+			   unsigned long flags);
+int divider_ro_determine_rate(struct clk_hw *hw, struct clk_rate_request *req,
+			      const struct clk_div_table *table, u8 width,
+			      unsigned long flags, unsigned int val);
 int divider_get_val(unsigned long rate, unsigned long parent_rate,
 		const struct clk_div_table *table, u8 width,
 		unsigned long flags);