Merge branches 'clk-microchip', 'clk-mmp', 'clk-unused' and 'clk-at91' into clk-next

 - Add support for SAMA7G5 SoC clks
 - Microchip Sparx5 DPLL clk

* clk-microchip:
  clk: sparx5: Add Sparx5 SoC DPLL clock driver
  dt-bindings: clock: sparx5: Add bindings include file

* clk-mmp:
  clk: mmp: avoid missing prototype warning

* clk-unused:
  clk: drop unused function __clk_get_flags

* clk-at91:
  clk: at91: sama7g5: add clock support for sama7g5
  clk: at91: clk-utmi: add utmi support for sama7g5
  clk: at91: clk-sam9x60-pll: re-factor to support plls with multiple outputs
  clk: at91: add macro for pll ids mask
  clk: at91: clk-programmable: add mux_table option
  clk: at91: clk-peripheral: add support for changeable parent rate
  clk: at91: clk-master: add master clock support for SAMA7G5
  clk: at91: clk-generated: add mux_table option
  clk: at91: clk-generated: pass the id of changeable parent at registration
  clk: at91: replace conditional operator with double logical not
  clk: at91: sckc: register slow_rc with accuracy option
  clk: at91: sam9x60: fix main rc oscillator frequency
  clk: at91: sam9x60-pll: use frac when setting frequency
  clk: at91: sam9x60-pll: check fcore against ranges
  clk: at91: sam9x60-pll: use logical or for range check
  clk: at91: clk-sam9x60-pll: fix mul mask
  clk: at91: clk-generated: check best_rate against ranges
  clk: at91: clk-generated: continue if __clk_determine_rate() returns error
  clk: at91: fix possible dead lock in new drivers

Author: bebarino

drivers/clk/Makefile

@@ -28,6 +28,7 @@ obj-$(CONFIG_COMMON_CLK_CDCE925)	+= clk-cdce925.o
 obj-$(CONFIG_ARCH_CLPS711X)		+= clk-clps711x.o
 obj-$(CONFIG_COMMON_CLK_CS2000_CP)	+= clk-cs2000-cp.o
 obj-$(CONFIG_ARCH_EFM32)		+= clk-efm32gg.o
+obj-$(CONFIG_ARCH_SPARX5)		+= clk-sparx5.o
 obj-$(CONFIG_COMMON_CLK_FIXED_MMIO)	+= clk-fixed-mmio.o
 obj-$(CONFIG_COMMON_CLK_FSL_SAI)	+= clk-fsl-sai.o
 obj-$(CONFIG_COMMON_CLK_GEMINI)		+= clk-gemini.o

drivers/clk/at91/Makefile

@@ -23,3 +23,4 @@ obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o
 obj-$(CONFIG_SOC_SAMA5D3) += sama5d3.o
 obj-$(CONFIG_SOC_SAMA5D4) += sama5d4.o
 obj-$(CONFIG_SOC_SAMA5D2) += sama5d2.o
+obj-$(CONFIG_SOC_SAMA7G5) += sama7g5.o

drivers/clk/at91/at91rm9200.c

@@ -160,7 +160,8 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
 
 		hw = at91_clk_register_programmable(regmap, name,
 						    parent_names, 4, i,
-						    &at91rm9200_programmable_layout);
+						    &at91rm9200_programmable_layout,
+						    NULL);
 		if (IS_ERR(hw))
 			goto err_free;
 

drivers/clk/at91/at91sam9260.c

@@ -436,7 +436,8 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
 
 		hw = at91_clk_register_programmable(regmap, name,
 						    parent_names, 4, i,
-						    &at91rm9200_programmable_layout);
+						    &at91rm9200_programmable_layout,
+						    NULL);
 		if (IS_ERR(hw))
 			goto err_free;
 

drivers/clk/at91/at91sam9g45.c

@@ -111,7 +111,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
 		return;
 	mainxtal_name = of_clk_get_parent_name(np, i);
 
-	regmap = syscon_node_to_regmap(np);
+	regmap = device_node_to_regmap(np);
 	if (IS_ERR(regmap))
 		return;
 
@@ -181,7 +181,8 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
 
 		hw = at91_clk_register_programmable(regmap, name,
 						    parent_names, 5, i,
-						    &at91sam9g45_programmable_layout);
+						    &at91sam9g45_programmable_layout,
+						    NULL);
 		if (IS_ERR(hw))
 			goto err_free;
 

drivers/clk/at91/at91sam9n12.c

@@ -124,7 +124,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 		return;
 	mainxtal_name = of_clk_get_parent_name(np, i);
 
-	regmap = syscon_node_to_regmap(np);
+	regmap = device_node_to_regmap(np);
 	if (IS_ERR(regmap))
 		return;
 
@@ -199,7 +199,8 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 
 		hw = at91_clk_register_programmable(regmap, name,
 						    parent_names, 5, i,
-						    &at91sam9x5_programmable_layout);
+						    &at91sam9x5_programmable_layout,
+						    NULL);
 		if (IS_ERR(hw))
 			goto err_free;
 
@@ -222,7 +223,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 							 at91sam9n12_periphck[i].n,
 							 "masterck",
 							 at91sam9n12_periphck[i].id,
-							 &range);
+							 &range, INT_MIN);
 		if (IS_ERR(hw))
 			goto err_free;
 

drivers/clk/at91/at91sam9rl.c

@@ -137,7 +137,8 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
 
 		hw = at91_clk_register_programmable(regmap, name,
 						    parent_names, 5, i,
-						    &at91rm9200_programmable_layout);
+						    &at91rm9200_programmable_layout,
+						    NULL);
 		if (IS_ERR(hw))
 			goto err_free;
 

drivers/clk/at91/at91sam9x5.c

@@ -226,7 +226,8 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 
 		hw = at91_clk_register_programmable(regmap, name,
 						    parent_names, 5, i,
-						    &at91sam9x5_programmable_layout);
+						    &at91sam9x5_programmable_layout,
+						    NULL);
 		if (IS_ERR(hw))
 			goto err_free;
 
@@ -257,7 +258,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 							 at91sam9x5_periphck[i].n,
 							 "masterck",
 							 at91sam9x5_periphck[i].id,
-							 &range);
+							 &range, INT_MIN);
 		if (IS_ERR(hw))
 			goto err_free;
 
@@ -270,7 +271,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 							 extra_pcks[i].n,
 							 "masterck",
 							 extra_pcks[i].id,
-							 &range);
+							 &range, INT_MIN);
 		if (IS_ERR(hw))
 			goto err_free;
 

drivers/clk/at91/clk-generated.c

@@ -18,18 +18,17 @@
 
 #define GENERATED_MAX_DIV	255
 
-#define GCK_INDEX_DT_AUDIO_PLL	5
-
 struct clk_generated {
 	struct clk_hw hw;
 	struct regmap *regmap;
 	struct clk_range range;
 	spinlock_t *lock;
+	u32 *mux_table;
 	u32 id;
 	u32 gckdiv;
 	const struct clk_pcr_layout *layout;
 	u8 parent_id;
-	bool audio_pll_allowed;
+	int chg_pid;
 };
 
 #define to_clk_generated(hw) \
@@ -83,7 +82,7 @@ static int clk_generated_is_enabled(struct clk_hw *hw)
 	regmap_read(gck->regmap, gck->layout->offset, &status);
 	spin_unlock_irqrestore(gck->lock, flags);
 
-	return status & AT91_PMC_PCR_GCKEN ? 1 : 0;
+	return !!(status & AT91_PMC_PCR_GCKEN);
 }
 
 static unsigned long
@@ -109,7 +108,7 @@ static void clk_generated_best_diff(struct clk_rate_request *req,
 		tmp_rate = parent_rate / div;
 	tmp_diff = abs(req->rate - tmp_rate);
 
-	if (*best_diff < 0 || *best_diff > tmp_diff) {
+	if (*best_diff < 0 || *best_diff >= tmp_diff) {
 		*best_rate = tmp_rate;
 		*best_diff = tmp_diff;
 		req->best_parent_rate = parent_rate;
@@ -129,7 +128,10 @@ static int clk_generated_determine_rate(struct clk_hw *hw,
 	int i;
 	u32 div;
 
-	for (i = 0; i < clk_hw_get_num_parents(hw) - 1; i++) {
+	for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
+		if (gck->chg_pid == i)
+			continue;
+
 		parent = clk_hw_get_parent_by_index(hw, i);
 		if (!parent)
 			continue;
@@ -161,16 +163,17 @@ static int clk_generated_determine_rate(struct clk_hw *hw,
 	 * that the only clks able to modify gck rate are those of audio IPs.
 	 */
 
-	if (!gck->audio_pll_allowed)
+	if (gck->chg_pid < 0)
 		goto end;
 
-	parent = clk_hw_get_parent_by_index(hw, GCK_INDEX_DT_AUDIO_PLL);
+	parent = clk_hw_get_parent_by_index(hw, gck->chg_pid);
 	if (!parent)
 		goto end;
 
 	for (div = 1; div < GENERATED_MAX_DIV + 2; div++) {
 		req_parent.rate = req->rate * div;
-		__clk_determine_rate(parent, &req_parent);
+		if (__clk_determine_rate(parent, &req_parent))
+			continue;
 		clk_generated_best_diff(req, parent, req_parent.rate, div,
 					&best_diff, &best_rate);
 
@@ -184,8 +187,8 @@ static int clk_generated_determine_rate(struct clk_hw *hw,
 		 __clk_get_name((req->best_parent_hw)->clk),
 		 req->best_parent_rate);
 
-	if (best_rate < 0)
-		return best_rate;
+	if (best_rate < 0 || (gck->range.max && best_rate > gck->range.max))
+		return -EINVAL;
 
 	req->rate = best_rate;
 	return 0;
@@ -199,7 +202,11 @@ static int clk_generated_set_parent(struct clk_hw *hw, u8 index)
 	if (index >= clk_hw_get_num_parents(hw))
 		return -EINVAL;
 
-	gck->parent_id = index;
+	if (gck->mux_table)
+		gck->parent_id = clk_mux_index_to_val(gck->mux_table, 0, index);
+	else
+		gck->parent_id = index;
+
 	return 0;
 }
 
@@ -271,8 +278,9 @@ struct clk_hw * __init
 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
 			    const struct clk_pcr_layout *layout,
 			    const char *name, const char **parent_names,
-			    u8 num_parents, u8 id, bool pll_audio,
-			    const struct clk_range *range)
+			    u32 *mux_table, u8 num_parents, u8 id,
+			    const struct clk_range *range,
+			    int chg_pid)
 {
 	struct clk_generated *gck;
 	struct clk_init_data init;
@@ -287,16 +295,18 @@ at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
 	init.ops = &generated_ops;
 	init.parent_names = parent_names;
 	init.num_parents = num_parents;
-	init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
-		CLK_SET_RATE_PARENT;
+	init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE;
+	if (chg_pid >= 0)
+		init.flags |= CLK_SET_RATE_PARENT;
 
 	gck->id = id;
 	gck->hw.init = &init;
 	gck->regmap = regmap;
 	gck->lock = lock;
 	gck->range = *range;
-	gck->audio_pll_allowed = pll_audio;
+	gck->chg_pid = chg_pid;
 	gck->layout = layout;
+	gck->mux_table = mux_table;
 
 	clk_generated_startup(gck);
 	hw = &gck->hw;

drivers/clk/at91/clk-main.c

@@ -175,7 +175,7 @@ static bool clk_main_rc_osc_ready(struct regmap *regmap)
 
 	regmap_read(regmap, AT91_PMC_SR, &status);
 
-	return status & AT91_PMC_MOSCRCS;
+	return !!(status & AT91_PMC_MOSCRCS);
 }
 
 static int clk_main_rc_osc_prepare(struct clk_hw *hw)
@@ -336,7 +336,7 @@ static int clk_rm9200_main_is_prepared(struct clk_hw *hw)
 
 	regmap_read(clkmain->regmap, AT91_CKGR_MCFR, &status);
 
-	return status & AT91_PMC_MAINRDY ? 1 : 0;
+	return !!(status & AT91_PMC_MAINRDY);
 }
 
 static unsigned long clk_rm9200_main_recalc_rate(struct clk_hw *hw,
@@ -398,7 +398,7 @@ static inline bool clk_sam9x5_main_ready(struct regmap *regmap)
 
 	regmap_read(regmap, AT91_PMC_SR, &status);
 
-	return status & AT91_PMC_MOSCSELS ? 1 : 0;
+	return !!(status & AT91_PMC_MOSCSELS);
 }
 
 static int clk_sam9x5_main_prepare(struct clk_hw *hw)