Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...

1 files changed, 23 insertions, 15 deletions

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index ec206732f68c..4ef747307ecb 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -205,7 +205,8 @@ struct imx_port {
         unsigned int            irda_inv_rx:1;
         unsigned int            irda_inv_tx:1;
         unsigned short          trcv_delay; /* transceiver delay */
-        struct clk              *clk;
+        struct clk              *clk_ipg;
+        struct clk              *clk_per;
         struct imx_uart_data    *devdata;
 };
 
@@ -673,7 +674,7 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
          * RFDIV is set such way to satisfy requested uartclk value
          */
         val = TXTL << 10 | RXTL;
-        ufcr_rfdiv = (clk_get_rate(sport->clk) + sport->port.uartclk / 2)
+        ufcr_rfdiv = (clk_get_rate(sport->clk_per) + sport->port.uartclk / 2)
                         / sport->port.uartclk;
 
         if(!ufcr_rfdiv)
@@ -1286,7 +1287,7 @@ imx_console_get_options(struct imx_port *sport, int *baud,
                 else
                         ucfr_rfdiv = 6 - ucfr_rfdiv;
 
-                uartclk = clk_get_rate(sport->clk);
+                uartclk = clk_get_rate(sport->clk_per);
                 uartclk /= ucfr_rfdiv;
 
                 {       /*
@@ -1511,14 +1512,22 @@ static int serial_imx_probe(struct platform_device *pdev)
                 goto unmap;
         }
 
-        sport->clk = clk_get(&pdev->dev, "uart");
-        if (IS_ERR(sport->clk)) {
-                ret = PTR_ERR(sport->clk);
+        sport->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+        if (IS_ERR(sport->clk_ipg)) {
+                ret = PTR_ERR(sport->clk_ipg);
                 goto unmap;
         }
-        clk_prepare_enable(sport->clk);
 
-        sport->port.uartclk = clk_get_rate(sport->clk);
+        sport->clk_per = devm_clk_get(&pdev->dev, "per");
+        if (IS_ERR(sport->clk_per)) {
+                ret = PTR_ERR(sport->clk_per);
+                goto unmap;
+        }
+
+        clk_prepare_enable(sport->clk_per);
+        clk_prepare_enable(sport->clk_ipg);
+
+        sport->port.uartclk = clk_get_rate(sport->clk_per);
 
         imx_ports[sport->port.line] = sport;
 
@@ -1539,8 +1548,8 @@ deinit:
         if (pdata && pdata->exit)
                 pdata->exit(pdev);
 clkput:
-        clk_disable_unprepare(sport->clk);
-        clk_put(sport->clk);
+        clk_disable_unprepare(sport->clk_per);
+        clk_disable_unprepare(sport->clk_ipg);
 unmap:
         iounmap(sport->port.membase);
 free:
@@ -1558,11 +1567,10 @@ static int serial_imx_remove(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, NULL);
 
-        if (sport) {
-                uart_remove_one_port(&imx_reg, &sport->port);
-                clk_disable_unprepare(sport->clk);
-                clk_put(sport->clk);
-        }
+        uart_remove_one_port(&imx_reg, &sport->port);
+
+        clk_disable_unprepare(sport->clk_per);
+        clk_disable_unprepare(sport->clk_ipg);
 
         if (pdata && pdata->exit)
                 pdata->exit(pdev);