Merge tag 'ux500-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/fixes-non-critical

From Linus Walleij <linus.walleij@linaro.org>:

Ux500 Device Tree fixes
All are necessary to make a proper DT boot on the v3.9
series:
- IRQ edges.
- Register defines.
- FSMC clock.
- Ethernet clk fixup (one patch to drivers/net ACKed by
  David Miller)
- Proper IOS and regulator voltages for MMCI.
- AB8500 GPIOs restored after they were fixed in the v3.9
  merge window from the pinctrl tree.
- There is also a minor cleanup in the platform code, but it
  is strongly connected to the other patches.

* tag 'ux500-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: allow Snowball access to the AB8500 GPIO pins
  ARM: ux500: enable AB8500 GPIO for HREF
  ARM: ux500: Remove traces of the ios_handler from platform code
  ARM: ux500: Use the GPIO regulator framework for SDI0's 'en' and 'vsel'
  ARM: ux500: Setup correct settling time for the MMCI regulator
  ARM: ux500: Use the correct name when supplying a GPIO enable pin
  ARM: ux500: Specify which IOS regulator to use for MMCI
  ARM: ux500: Specify the ux5x0 MMCI regulator's on/off GPIO as high-enable
  ARM: ux500: Set correct MMCI regulator voltages in the ux5x0 Device Tree
  mmc: mmci: Move ios_handler functionality into the driver
  net/smsc911x: Provide common clock functionality
  clk: ux500: Provide an alias for the SMSC911x Ethernet chip
  clk: ux500: Ensure the FMSC clock is obtainable
  ARM: ux500: Provide a means to obtain the SMSC9115 clock when DT is enabled
  ARM: ux500: Include the PRCMU's Secure Registers in DB8500's DT
  ARM: ux500: Change IRQ from low-to-high edge triggered to high-to-low

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 28 insertions, 1 deletions

diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index da5cc9a3b34c..df77df16d991 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -33,6 +33,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/crc32.h>
+#include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/etherdevice.h>
@@ -144,6 +145,9 @@ struct smsc911x_data {
 
 	/* regulators */
 	struct regulator_bulk_data supplies[SMSC911X_NUM_SUPPLIES];
+
+	/* clock */
+	struct clk *clk;
 };
 
 /* Easy access to information */
@@ -369,7 +373,7 @@ out:
 }
 
 /*
- * enable resources, currently just regulators.
+ * enable regulator and clock resources.
  */
 static int smsc911x_enable_resources(struct platform_device *pdev)
 {
@@ -382,6 +386,13 @@ static int smsc911x_enable_resources(struct platform_device *pdev)
 	if (ret)
 		netdev_err(ndev, "failed to enable regulators %d\n",
 				ret);
+
+	if (!IS_ERR(pdata->clk)) {
+		ret = clk_prepare_enable(pdata->clk);
+		if (ret < 0)
+			netdev_err(ndev, "failed to enable clock %d\n", ret);
+	}
+
 	return ret;
 }
 
@@ -396,6 +407,10 @@ static int smsc911x_disable_resources(struct platform_device *pdev)
 
 	ret = regulator_bulk_disable(ARRAY_SIZE(pdata->supplies),
 			pdata->supplies);
+
+	if (!IS_ERR(pdata->clk))
+		clk_disable_unprepare(pdata->clk);
+
 	return ret;
 }
 
@@ -421,6 +436,12 @@ static int smsc911x_request_resources(struct platform_device *pdev)
 	if (ret)
 		netdev_err(ndev, "couldn't get regulators %d\n",
 				ret);
+
+	/* Request clock */
+	pdata->clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(pdata->clk))
+		netdev_warn(ndev, "couldn't get clock %li\n", PTR_ERR(pdata->clk));
+
 	return ret;
 }
 
@@ -436,6 +457,12 @@ static void smsc911x_free_resources(struct platform_device *pdev)
 	/* Free regulators */
 	regulator_bulk_free(ARRAY_SIZE(pdata->supplies),
 			pdata->supplies);
+
+	/* Free clock */
+	if (!IS_ERR(pdata->clk)) {
+		clk_put(pdata->clk);
+		pdata->clk = NULL;
+	}
 }
 
 /* waits for MAC not busy, with timeout.  Only called by smsc911x_mac_read