Merge tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from James Hogan:
 "These are the main MIPS changes for 4.18.

  Rough overview:

   - MAINTAINERS: Add Paul Burton as MIPS co-maintainer

   - Misc: Generic compiler intrinsics, Y2038 improvements, Perf+MT fixes

   - Platform support: Netgear WNR1000 V3, Microsemi Ocelot integrated
     switch, Ingenic watchdog cleanups

  More detailed  summary:

  Maintainers:

   - Add Paul Burton as MIPS co-maintainer, as I soon won't have access
     to much MIPS hardware, nor enough time to properly maintain MIPS on
     my own.

  Miscellaneous:

   - Use generic GCC library routines from lib/
     - Add notrace to generic ucmpdi2 implementation
     - Rename compiler intrinsic selects to GENERIC_LIB_*
     - vmlinuz: Use generic ashldi3

   - y2038: Convert update/read_persistent_clock() to *_clock64()
     - sni: Remove read_persistent_clock()

   - perf: Fix perf with MT counting other threads
     - Probe for per-TC perf counters in cpu-probe.c
     - Use correct VPE ID for VPE tracing

  Minor cleanups:

   - Avoid unneeded built-in.a in DTS dirs

   - sc-debugfs: Re-use kstrtobool_from_user

   - memset.S: Reinstate delay slot indentation

   - VPE: Fix spelling "uneeded" -> "Unneeded"

  Platform support:

  BCM47xx:

   - Add support for Netgear WNR1000 V3

   - firmware: Support small NVRAM partitions

   - Use __initdata for LEDs platform data

  Ingenic:

   - Watchdog driver & platform code improvements:
     - Disable clock after stopping counter
     - Use devm_* functions
     - Drop module remove function
     - Move platform reset code to restart handler in driver
     - JZ4740: Convert watchdog instantiation to DT
     - JZ4780: Fix watchdog DT node
     - qi_lb60_defconfig: Enable watchdog driver

  Microsemi:

   - Ocelot: Add support for integrated switch
     - pcb123: Connect phys to ports"

* tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits)
  MAINTAINERS: Add Paul Burton as MIPS co-maintainer
  MIPS: ptrace: Make FPU context layout comments match reality
  MIPS: memset.S: Reinstate delay slot indentation
  MIPS: perf: Fix perf with MT counting other threads
  MIPS: perf: Use correct VPE ID when setting up VPE tracing
  MIPS: perf: More robustly probe for the presence of per-tc counters
  MIPS: Probe for MIPS MT perf counters per TC
  MIPS: mscc: Connect phys to ports on ocelot_pcb123
  MIPS: mscc: Add switch to ocelot
  MIPS: JZ4740: Drop old platform reset code
  MIPS: qi_lb60: Enable the jz4740-wdt driver
  MIPS: JZ4780: dts: Fix watchdog node
  MIPS: JZ4740: dts: Add bindings for the jz4740-wdt driver
  watchdog: JZ4740: Drop module remove function
  watchdog: JZ4740: Register a restart handler
  watchdog: JZ4740: Use devm_* functions
  watchdog: JZ4740: Disable clock after stopping counter
  MIPS: VPE: Fix spelling mistake: "uneeded" -> "unneeded"
  MIPS: Re-use kstrtobool_from_user()
  MIPS: Convert update_persistent_clock() to update_persistent_clock64()
  ...

1 files changed, 16 insertions, 26 deletions

diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index aafbeb96561b..ec4d99a830ba 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -124,12 +124,20 @@ static int jz4740_wdt_stop(struct watchdog_device *wdt_dev)
 {
 	struct jz4740_wdt_drvdata *drvdata = watchdog_get_drvdata(wdt_dev);
 
-	jz4740_timer_disable_watchdog();
 	writeb(0x0, drvdata->base + JZ_REG_WDT_COUNTER_ENABLE);
+	jz4740_timer_disable_watchdog();
 
 	return 0;
 }
 
+static int jz4740_wdt_restart(struct watchdog_device *wdt_dev,
+			      unsigned long action, void *data)
+{
+	wdt_dev->timeout = 0;
+	jz4740_wdt_start(wdt_dev);
+	return 0;
+}
+
 static const struct watchdog_info jz4740_wdt_info = {
 	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
 	.identity = "jz4740 Watchdog",
@@ -141,6 +149,7 @@ static const struct watchdog_ops jz4740_wdt_ops = {
 	.stop = jz4740_wdt_stop,
 	.ping = jz4740_wdt_ping,
 	.set_timeout = jz4740_wdt_set_timeout,
+	.restart = jz4740_wdt_restart,
 };
 
 #ifdef CONFIG_OF
@@ -179,45 +188,26 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	drvdata->base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(drvdata->base)) {
-		ret = PTR_ERR(drvdata->base);
-		goto err_out;
-	}
+	if (IS_ERR(drvdata->base))
+		return PTR_ERR(drvdata->base);
 
-	drvdata->rtc_clk = clk_get(&pdev->dev, "rtc");
+	drvdata->rtc_clk = devm_clk_get(&pdev->dev, "rtc");
 	if (IS_ERR(drvdata->rtc_clk)) {
 		dev_err(&pdev->dev, "cannot find RTC clock\n");
-		ret = PTR_ERR(drvdata->rtc_clk);
-		goto err_out;
+		return PTR_ERR(drvdata->rtc_clk);
 	}
 
-	ret = watchdog_register_device(&drvdata->wdt);
+	ret = devm_watchdog_register_device(&pdev->dev, &drvdata->wdt);
 	if (ret < 0)
-		goto err_disable_clk;
+		return ret;
 
 	platform_set_drvdata(pdev, drvdata);
-	return 0;
-
-err_disable_clk:
-	clk_put(drvdata->rtc_clk);
-err_out:
-	return ret;
-}
-
-static int jz4740_wdt_remove(struct platform_device *pdev)
-{
-	struct jz4740_wdt_drvdata *drvdata = platform_get_drvdata(pdev);
-
-	jz4740_wdt_stop(&drvdata->wdt);
-	watchdog_unregister_device(&drvdata->wdt);
-	clk_put(drvdata->rtc_clk);
 
 	return 0;
 }
 
 static struct platform_driver jz4740_wdt_driver = {
 	.probe = jz4740_wdt_probe,
-	.remove = jz4740_wdt_remove,
 	.driver = {
 		.name = "jz4740-wdt",
 		.of_match_table = of_match_ptr(jz4740_wdt_of_matches),