Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux into nextnext

Pull clock framework updates from Mike Turquette:
 "The clock framework changes for 3.16 are pretty typical: mostly clock
  driver additions and fixes.  There are additions to the clock core
  code for some of the basic types (e.g. the common divider type has
  some fixes and featured added to it).

  One minor annoyance is a last-minute dependency that wasn't handled
  quite right.  Commit ba0fae3b06a6 ("clk: berlin: add core clock driver
  for BG2/BG2CD") in this pull request depends on
  include/dt-bindings/clock/berlin2.h, which is already in your tree via
  the arm-soc pull request.  Building for the berlin platform will break
  when the clk tree is built on it's own, but merged into your master
  branch everything should be fine"

* tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux: (75 commits)
  mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs
  clk: export __clk_round_rate for providers
  clk: versatile: free icst on error return
  clk: qcom: Return error pointers for unimplemented clocks
  clk: qcom: Support msm8974pro global clock control hardware
  clk: qcom: Properly support display clocks on msm8974
  clk: qcom: Support display RCG clocks
  clk: qcom: Return highest rate when round_rate() exceeds plan
  clk: qcom: Fix mmcc-8974's PLL configurations
  clk: qcom: Fix clk_rcg2_is_enabled() check
  clk: berlin: add core clock driver for BG2Q
  clk: berlin: add core clock driver for BG2/BG2CD
  clk: berlin: add driver for BG2x complex divider cells
  clk: berlin: add driver for BG2x simple PLLs
  clk: berlin: add driver for BG2x audio/video PLL
  clk: st: Terminate of match table
  clk/exynos4: Fix compilation warning
  ARM: shmobile: r8a7779: Add clock index macros for DT sources
  clk: divider: Fix overflow in clk_divider_bestdiv
  clk: u300: Terminate of match table
  ...

1 files changed, 62 insertions, 26 deletions

diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index f2f62a1bf61a..9b7b5859a420 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -1,7 +1,7 @@
 /*
  * clk-s2mps11.c - Clock driver for S2MPS11.
  *
- * Copyright (C) 2013 Samsung Electornics
+ * Copyright (C) 2013,2014 Samsung Electornics
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -13,10 +13,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
@@ -27,6 +23,7 @@
 #include <linux/clk-provider.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/samsung/s2mps11.h>
+#include <linux/mfd/samsung/s2mps14.h>
 #include <linux/mfd/samsung/s5m8767.h>
 #include <linux/mfd/samsung/core.h>
 
@@ -44,6 +41,7 @@ enum {
 
 struct s2mps11_clk {
 	struct sec_pmic_dev *iodev;
+	struct device_node *clk_np;
 	struct clk_hw hw;
 	struct clk *clk;
 	struct clk_lookup *lookup;
@@ -125,7 +123,21 @@ static struct clk_init_data s2mps11_clks_init[S2MPS11_CLKS_NUM] = {
 	},
 };
 
-static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev)
+static struct clk_init_data s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
+	[S2MPS11_CLK_AP] = {
+		.name = "s2mps14_ap",
+		.ops = &s2mps11_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+	[S2MPS11_CLK_BT] = {
+		.name = "s2mps14_bt",
+		.ops = &s2mps11_clk_ops,
+		.flags = CLK_IS_ROOT,
+	},
+};
+
+static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev,
+		struct clk_init_data *clks_init)
 {
 	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct device_node *clk_np;
@@ -140,14 +152,12 @@ static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev)
 		return ERR_PTR(-EINVAL);
 	}
 
-	clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) *
-				 S2MPS11_CLKS_NUM, GFP_KERNEL);
-	if (!clk_table)
-		return ERR_PTR(-ENOMEM);
-
-	for (i = 0; i < S2MPS11_CLKS_NUM; i++)
+	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
+		if (!clks_init[i].name)
+			continue; /* Skip clocks not present in some devices */
 		of_property_read_string_index(clk_np, "clock-output-names", i,
-				&s2mps11_clks_init[i].name);
+				&clks_init[i].name);
+	}
 
 	return clk_np;
 }
@@ -156,8 +166,8 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
 {
 	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct s2mps11_clk *s2mps11_clks, *s2mps11_clk;
-	struct device_node *clk_np = NULL;
 	unsigned int s2mps11_reg;
+	struct clk_init_data *clks_init;
 	int i, ret = 0;
 	u32 val;
 
@@ -168,25 +178,39 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
 
 	s2mps11_clk = s2mps11_clks;
 
-	clk_np = s2mps11_clk_parse_dt(pdev);
-	if (IS_ERR(clk_np))
-		return PTR_ERR(clk_np);
+	clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) *
+				 S2MPS11_CLKS_NUM, GFP_KERNEL);
+	if (!clk_table)
+		return -ENOMEM;
 
 	switch(platform_get_device_id(pdev)->driver_data) {
 	case S2MPS11X:
 		s2mps11_reg = S2MPS11_REG_RTC_CTRL;
+		clks_init = s2mps11_clks_init;
+		break;
+	case S2MPS14X:
+		s2mps11_reg = S2MPS14_REG_RTCCTRL;
+		clks_init = s2mps14_clks_init;
 		break;
 	case S5M8767X:
 		s2mps11_reg = S5M8767_REG_CTRL1;
+		clks_init = s2mps11_clks_init;
 		break;
 	default:
 		dev_err(&pdev->dev, "Invalid device type\n");
 		return -EINVAL;
 	};
 
+	/* Store clocks of_node in first element of s2mps11_clks array */
+	s2mps11_clks->clk_np = s2mps11_clk_parse_dt(pdev, clks_init);
+	if (IS_ERR(s2mps11_clks->clk_np))
+		return PTR_ERR(s2mps11_clks->clk_np);
+
 	for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) {
+		if (!clks_init[i].name)
+			continue; /* Skip clocks not present in some devices */
 		s2mps11_clk->iodev = iodev;
-		s2mps11_clk->hw.init = &s2mps11_clks_init[i];
+		s2mps11_clk->hw.init = &clks_init[i];
 		s2mps11_clk->mask = 1 << i;
 		s2mps11_clk->reg = s2mps11_reg;
 
@@ -219,15 +243,18 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
 		clkdev_add(s2mps11_clk->lookup);
 	}
 
-	if (clk_table) {
-		for (i = 0; i < S2MPS11_CLKS_NUM; i++)
-			clk_table[i] = s2mps11_clks[i].clk;
-
-		clk_data.clks = clk_table;
-		clk_data.clk_num = S2MPS11_CLKS_NUM;
-		of_clk_add_provider(clk_np, of_clk_src_onecell_get, &clk_data);
+	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
+		/* Skip clocks not present on S2MPS14 */
+		if (!clks_init[i].name)
+			continue;
+		clk_table[i] = s2mps11_clks[i].clk;
 	}
 
+	clk_data.clks = clk_table;
+	clk_data.clk_num = S2MPS11_CLKS_NUM;
+	of_clk_add_provider(s2mps11_clks->clk_np, of_clk_src_onecell_get,
+			&clk_data);
+
 	platform_set_drvdata(pdev, s2mps11_clks);
 
 	return ret;
@@ -250,14 +277,23 @@ static int s2mps11_clk_remove(struct platform_device *pdev)
 	struct s2mps11_clk *s2mps11_clks = platform_get_drvdata(pdev);
 	int i;
 
-	for (i = 0; i < S2MPS11_CLKS_NUM; i++)
+	of_clk_del_provider(s2mps11_clks[0].clk_np);
+	/* Drop the reference obtained in s2mps11_clk_parse_dt */
+	of_node_put(s2mps11_clks[0].clk_np);
+
+	for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
+		/* Skip clocks not present on S2MPS14 */
+		if (!s2mps11_clks[i].lookup)
+			continue;
 		clkdev_drop(s2mps11_clks[i].lookup);
+	}
 
 	return 0;
 }
 
 static const struct platform_device_id s2mps11_clk_id[] = {
 	{ "s2mps11-clk", S2MPS11X},
+	{ "s2mps14-clk", S2MPS14X},
 	{ "s5m8767-clk", S5M8767X},
 	{ },
 };