Merge tag 'clk-for-linus-20151104' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The majority of the changes are driver updates and new device support.
  The core framework is mostly unchanged this time around, with only a
  couple patches to expose a clk provider API and make getting clk
  parent names from DT more robust.

  Driver updates:

   - Support for clock controllers found on Broadcom Northstar SoCs and
     bcm2835 SoC

   - Support for Allwinner audio clocks

   - A few cleanup patches for Tegra drivers and support for the highest
     DFLL frequencies on Tegra124

   - Samsung exynos7 fixes and improvements

   - i.Mx SoC updates to add a few missing clocks and keep debug uart
     clocks on during kernel intialization

   - Some mediatek cleanups and support for more subsystem clocks

   - Support for msm8916 gpu/audio clocks and qcom's GDSC power domain
     controllers

   - A new driver for the Silabs si514 clock chip"

* tag 'clk-for-linus-20151104' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (143 commits)
  clk: qcom: msm8960: Fix dsi1/2 halt bits
  clk: lpc18xx-cgu: fix potential system hang when disabling unused clocks
  clk: lpc18xx-ccu: fix potential system hang when disabling unused clocks
  clk: Add clk_hw_is_enabled() for use by clk providers
  clk: Add stubs for of_clk_*() APIs when CONFIG_OF=n
  clk: versatile-icst: fix memory leak
  clk: Remove clk_{register,unregister}_multiplier()
  clk: iproc: define Broadcom NS2 iProc clock binding
  clk: iproc: define Broadcom NSP iProc clock binding
  clk: ns2: add clock support for Broadcom Northstar 2 SoC
  clk: iproc: Separate status and control variables
  clk: iproc: Split off dig_filter
  clk: iproc: Add PLL base write function
  clk: nsp: add clock support for Broadcom Northstar Plus SoC
  clk: iproc: Add PWRCTRL support
  clk: cygnus: Convert all macros to all caps
  ARM: cygnus: fix link failures when CONFIG_COMMON_CLK_IPROC is disabled
  clk: imx31: add missing of_node_put
  clk: imx27: add missing of_node_put
  clk: si5351: add missing of_node_put
  ...

1 files changed, 31 insertions, 8 deletions

diff --git a/drivers/clk/imx/clk-imx31.c b/drivers/clk/imx/clk-imx31.c
index 1f8383475bb3..6a964144a5b5 100644
--- a/drivers/clk/imx/clk-imx31.c
+++ b/drivers/clk/imx/clk-imx31.c
@@ -62,7 +62,17 @@ enum mx31_clks {
 static struct clk *clk[clk_max];
 static struct clk_onecell_data clk_data;
 
-int __init mx31_clocks_init(unsigned long fref)
+static struct clk ** const uart_clks[] __initconst = {
+	&clk[ipg],
+	&clk[uart1_gate],
+	&clk[uart2_gate],
+	&clk[uart3_gate],
+	&clk[uart4_gate],
+	&clk[uart5_gate],
+	NULL
+};
+
+static void __init _mx31_clocks_init(unsigned long fref)
 {
 	void __iomem *base;
 	struct device_node *np;
@@ -132,6 +142,12 @@ int __init mx31_clocks_init(unsigned long fref)
 
 	imx_check_clocks(clk, ARRAY_SIZE(clk));
 
+	clk_set_parent(clk[csi], clk[upll]);
+	clk_prepare_enable(clk[emi_gate]);
+	clk_prepare_enable(clk[iim_gate]);
+	mx31_revision();
+	clk_disable_unprepare(clk[iim_gate]);
+
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm");
 
 	if (np) {
@@ -139,6 +155,13 @@ int __init mx31_clocks_init(unsigned long fref)
 		clk_data.clk_num = ARRAY_SIZE(clk);
 		of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 	}
+}
+
+int __init mx31_clocks_init(void)
+{
+	u32 fref = 26000000; /* default */
+
+	_mx31_clocks_init(fref);
 
 	clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
 	clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
@@ -194,12 +217,8 @@ int __init mx31_clocks_init(unsigned long fref)
 	clk_register_clkdev(clk[sdma_gate], NULL, "imx31-sdma");
 	clk_register_clkdev(clk[iim_gate], "iim", NULL);
 
-	clk_set_parent(clk[csi], clk[upll]);
-	clk_prepare_enable(clk[emi_gate]);
-	clk_prepare_enable(clk[iim_gate]);
-	mx31_revision();
-	clk_disable_unprepare(clk[iim_gate]);
 
+	imx_register_uart_clocks(uart_clks);
 	mxc_timer_init(MX31_GPT1_BASE_ADDR, MX31_INT_GPT, GPT_TYPE_IMX31);
 
 	return 0;
@@ -214,9 +233,13 @@ int __init mx31_clocks_init_dt(void)
 		if (!of_device_is_compatible(np, "fsl,imx-osc26m"))
 			continue;
 
-		if (!of_property_read_u32(np, "clock-frequency", &fref))
+		if (!of_property_read_u32(np, "clock-frequency", &fref)) {
+			of_node_put(np);
 			break;
+		}
 	}
 
-	return mx31_clocks_init(fref);
+	_mx31_clocks_init(fref);
+
+	return 0;
 }