1 files changed, 32 insertions, 153 deletions

diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index 4e1cd5aa69..60516ca10f 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -11,26 +11,23 @@
  *
  */
 
-#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
+#include <common.h>
+#include <clock.h>
+#include <io.h>
+#include <linux/list.h>
+#include <linux/clk.h>
 #include <linux/clk/at91_pmc.h>
-#include <linux/of.h>
-#include <linux/mfd/syscon.h>
-#include <linux/regmap.h>
+#include <mfd/syscon.h>
+#include <regmap.h>
 
 #include "pmc.h"
 
-#define PERIPHERAL_MAX		64
-#define PERIPHERAL_ID_MIN	2
-
-#define GENERATED_SOURCE_MAX	6
 #define GENERATED_MAX_DIV	255
 
 struct clk_generated {
-	struct clk_hw hw;
+	struct clk hw;
 	struct regmap *regmap;
 	struct clk_range range;
-	spinlock_t *lock;
 	u32 id;
 	u32 gckdiv;
 	u8 parent_id;
@@ -39,15 +36,13 @@ struct clk_generated {
 #define to_clk_generated(hw) \
 	container_of(hw, struct clk_generated, hw)
 
-static int clk_generated_enable(struct clk_hw *hw)
+static int clk_generated_enable(struct clk *hw)
 {
 	struct clk_generated *gck = to_clk_generated(hw);
-	unsigned long flags;
 
 	pr_debug("GCLK: %s, gckdiv = %d, parent id = %d\n",
 		 __func__, gck->gckdiv, gck->parent_id);
 
-	spin_lock_irqsave(gck->lock, flags);
 	regmap_write(gck->regmap, AT91_PMC_PCR,
 		     (gck->id & AT91_PMC_PCR_PID_MASK));
 	regmap_update_bits(gck->regmap, AT91_PMC_PCR,
@@ -57,41 +52,34 @@ static int clk_generated_enable(struct clk_hw *hw)
 			   AT91_PMC_PCR_CMD |
 			   AT91_PMC_PCR_GCKDIV(gck->gckdiv) |
 			   AT91_PMC_PCR_GCKEN);
-	spin_unlock_irqrestore(gck->lock, flags);
 	return 0;
 }
 
-static void clk_generated_disable(struct clk_hw *hw)
+static void clk_generated_disable(struct clk *hw)
 {
 	struct clk_generated *gck = to_clk_generated(hw);
-	unsigned long flags;
 
-	spin_lock_irqsave(gck->lock, flags);
 	regmap_write(gck->regmap, AT91_PMC_PCR,
 		     (gck->id & AT91_PMC_PCR_PID_MASK));
 	regmap_update_bits(gck->regmap, AT91_PMC_PCR,
 			   AT91_PMC_PCR_CMD | AT91_PMC_PCR_GCKEN,
 			   AT91_PMC_PCR_CMD);
-	spin_unlock_irqrestore(gck->lock, flags);
 }
 
-static int clk_generated_is_enabled(struct clk_hw *hw)
+static int clk_generated_is_enabled(struct clk *hw)
 {
 	struct clk_generated *gck = to_clk_generated(hw);
-	unsigned long flags;
 	unsigned int status;
 
-	spin_lock_irqsave(gck->lock, flags);
 	regmap_write(gck->regmap, AT91_PMC_PCR,
 		     (gck->id & AT91_PMC_PCR_PID_MASK));
 	regmap_read(gck->regmap, AT91_PMC_PCR, &status);
-	spin_unlock_irqrestore(gck->lock, flags);
 
 	return status & AT91_PMC_PCR_GCKEN ? 1 : 0;
 }
 
 static unsigned long
-clk_generated_recalc_rate(struct clk_hw *hw,
+clk_generated_recalc_rate(struct clk *hw,
 			  unsigned long parent_rate)
 {
 	struct clk_generated *gck = to_clk_generated(hw);
@@ -99,75 +87,19 @@ clk_generated_recalc_rate(struct clk_hw *hw,
 	return DIV_ROUND_CLOSEST(parent_rate, gck->gckdiv + 1);
 }
 
-static int clk_generated_determine_rate(struct clk_hw *hw,
-					struct clk_rate_request *req)
-{
-	struct clk_generated *gck = to_clk_generated(hw);
-	struct clk_hw *parent = NULL;
-	long best_rate = -EINVAL;
-	unsigned long tmp_rate, min_rate;
-	int best_diff = -1;
-	int tmp_diff;
-	int i;
-
-	for (i = 0; i < clk_hw_get_num_parents(hw); i++) {
-		u32 div;
-		unsigned long parent_rate;
-
-		parent = clk_hw_get_parent_by_index(hw, i);
-		if (!parent)
-			continue;
-
-		parent_rate = clk_hw_get_rate(parent);
-		min_rate = DIV_ROUND_CLOSEST(parent_rate, GENERATED_MAX_DIV + 1);
-		if (!parent_rate ||
-		    (gck->range.max && min_rate > gck->range.max))
-			continue;
-
-		for (div = 1; div < GENERATED_MAX_DIV + 2; div++) {
-			tmp_rate = DIV_ROUND_CLOSEST(parent_rate, div);
-			tmp_diff = abs(req->rate - tmp_rate);
-
-			if (best_diff < 0 || best_diff > tmp_diff) {
-				best_rate = tmp_rate;
-				best_diff = tmp_diff;
-				req->best_parent_rate = parent_rate;
-				req->best_parent_hw = parent;
-			}
-
-			if (!best_diff || tmp_rate < req->rate)
-				break;
-		}
-
-		if (!best_diff)
-			break;
-	}
-
-	pr_debug("GCLK: %s, best_rate = %ld, parent clk: %s @ %ld\n",
-		 __func__, best_rate,
-		 __clk_get_name((req->best_parent_hw)->clk),
-		 req->best_parent_rate);
-
-	if (best_rate < 0)
-		return best_rate;
-
-	req->rate = best_rate;
-	return 0;
-}
-
 /* No modification of hardware as we have the flag CLK_SET_PARENT_GATE set */
-static int clk_generated_set_parent(struct clk_hw *hw, u8 index)
+static int clk_generated_set_parent(struct clk *hw, u8 index)
 {
 	struct clk_generated *gck = to_clk_generated(hw);
 
-	if (index >= clk_hw_get_num_parents(hw))
+	if (index >= clk_get_num_parents(hw))
 		return -EINVAL;
 
 	gck->parent_id = index;
 	return 0;
 }
 
-static u8 clk_generated_get_parent(struct clk_hw *hw)
+static int clk_generated_get_parent(struct clk *hw)
 {
 	struct clk_generated *gck = to_clk_generated(hw);
 
@@ -175,7 +107,7 @@ static u8 clk_generated_get_parent(struct clk_hw *hw)
 }
 
 /* No modification of hardware as we have the flag CLK_SET_RATE_GATE set */
-static int clk_generated_set_rate(struct clk_hw *hw,
+static int clk_generated_set_rate(struct clk *hw,
 				  unsigned long rate,
 				  unsigned long parent_rate)
 {
@@ -201,7 +133,6 @@ static const struct clk_ops generated_ops = {
 	.disable = clk_generated_disable,
 	.is_enabled = clk_generated_is_enabled,
 	.recalc_rate = clk_generated_recalc_rate,
-	.determine_rate = clk_generated_determine_rate,
 	.get_parent = clk_generated_get_parent,
 	.set_parent = clk_generated_set_parent,
 	.set_rate = clk_generated_set_rate,
@@ -219,13 +150,10 @@ static const struct clk_ops generated_ops = {
 static void clk_generated_startup(struct clk_generated *gck)
 {
 	u32 tmp;
-	unsigned long flags;
 
-	spin_lock_irqsave(gck->lock, flags);
 	regmap_write(gck->regmap, AT91_PMC_PCR,
 		     (gck->id & AT91_PMC_PCR_PID_MASK));
 	regmap_read(gck->regmap, AT91_PMC_PCR, &tmp);
-	spin_unlock_irqrestore(gck->lock, flags);
 
 	gck->parent_id = (tmp & AT91_PMC_PCR_GCKCSS_MASK)
 					>> AT91_PMC_PCR_GCKCSS_OFFSET;
@@ -233,35 +161,37 @@ static void clk_generated_startup(struct clk_generated *gck)
 					>> AT91_PMC_PCR_GCKDIV_OFFSET;
 }
 
-static struct clk_hw * __init
-at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
+struct clk * __init
+at91_clk_register_generated(struct regmap *regmap,
 			    const char *name, const char **parent_names,
-			    u8 num_parents, u8 id,
+			    u8 num_parents, u8 id, bool pll_audio,
 			    const struct clk_range *range)
 {
+	size_t parents_array_size;
 	struct clk_generated *gck;
-	struct clk_init_data init;
-	struct clk_hw *hw;
+	struct clk *hw;
 	int ret;
 
 	gck = kzalloc(sizeof(*gck), GFP_KERNEL);
 	if (!gck)
 		return ERR_PTR(-ENOMEM);
 
-	init.name = name;
-	init.ops = &generated_ops;
-	init.parent_names = parent_names;
-	init.num_parents = num_parents;
-	init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE;
-
 	gck->id = id;
-	gck->hw.init = &init;
+	gck->hw.name = name;
+	gck->hw.ops = &generated_ops;
+
+	parents_array_size = num_parents * sizeof(gck->hw.parent_names[0]);
+	gck->hw.parent_names = xzalloc(parents_array_size);
+	memcpy(gck->hw.parent_names, parent_names, parents_array_size);
+	gck->hw.num_parents = num_parents;
+
+	/* gck->hw.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE; */
 	gck->regmap = regmap;
-	gck->lock = lock;
 	gck->range = *range;
+	/* gck->audio_pll_allowed = pll_audio; */
 
 	hw = &gck->hw;
-	ret = clk_hw_register(NULL, &gck->hw);
+	ret = clk_register(&gck->hw);
 	if (ret) {
 		kfree(gck);
 		hw = ERR_PTR(ret);
@@ -270,54 +200,3 @@ at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
 
 	return hw;
 }
-
-static void __init of_sama5d2_clk_generated_setup(struct device_node *np)
-{
-	int num;
-	u32 id;
-	const char *name;
-	struct clk_hw *hw;
-	unsigned int num_parents;
-	const char *parent_names[GENERATED_SOURCE_MAX];
-	struct device_node *gcknp;
-	struct clk_range range = CLK_RANGE(0, 0);
-	struct regmap *regmap;
-
-	num_parents = of_clk_get_parent_count(np);
-	if (num_parents == 0 || num_parents > GENERATED_SOURCE_MAX)
-		return;
-
-	of_clk_parent_fill(np, parent_names, num_parents);
-
-	num = of_get_child_count(np);
-	if (!num || num > PERIPHERAL_MAX)
-		return;
-
-	regmap = syscon_node_to_regmap(of_get_parent(np));
-	if (IS_ERR(regmap))
-		return;
-
-	for_each_child_of_node(np, gcknp) {
-		if (of_property_read_u32(gcknp, "reg", &id))
-			continue;
-
-		if (id < PERIPHERAL_ID_MIN || id >= PERIPHERAL_MAX)
-			continue;
-
-		if (of_property_read_string(np, "clock-output-names", &name))
-			name = gcknp->name;
-
-		of_at91_get_clk_range(gcknp, "atmel,clk-output-range",
-				      &range);
-
-		hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, name,
-						  parent_names, num_parents,
-						  id, &range);
-		if (IS_ERR(hw))
-			continue;
-
-		of_clk_add_hw_provider(gcknp, of_clk_hw_simple_get, hw);
-	}
-}
-CLK_OF_DECLARE(of_sama5d2_clk_generated_setup, "atmel,sama5d2-clk-generated",
-	       of_sama5d2_clk_generated_setup);