Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have two new drivers, some improvements to the core code, lots of
  different updates to existing GPIO drivers and some dt-bindings on
  top.

  There's nothing controversial in here and almost everything has been
  in next for more than a week (95% a lot longer than this). The only
  thing that has spent less time in next is a new driver so no risk of
  regressions.

  The single merge pulls in changes that remove all usage of global GPIO
  numbers from arch/arm/mach-omap.

  Core GPIO library:
   - remove unused symbols
   - don't spam the kernel log with messages about hogs
   - remove old sysfs API cruft
   - improve handling of GPIO masks

  New drivers:
   - add a driver for the BlueField-3 GPIO controller
   - add GPIO support for the TPS65219 PMIC

  Driver improvements:
   - extend the gpio-aggregator driver to support ramp-up/ramp-down
     delay
   - remove unnecessary CONFIG_OF guards from gpio-aggregator
   - readability improvements in gpio-tangier
   - switch i2c drivers back to using probe() now that it's been
     converted in the i2c subsystem to not taking the id parameter
   - remove unused inclusions of of_gpio.h in several drivers
   - make pm ops static in gpio-davinci and fix a comment
   - use more devres in drivers to shrink and simplify the code
   - add missing include in gpio-sa1100
   - add HAS_IOPORT KConfig dependency where needed
   - add permissions checks before accessing pins in gpio-tegra186
   - convert the gpio-zynq driver to using immutable irqchips
   - preserve output settings set by the bootloader in gpio-mpc8xxx

  Selftests:
   - tweak the variable naming in script tests

  Device tree updates:
   - convert gpio-mmio and gpio-stmpe to YAML
   - add parsing of GPIO hogs to gpio-vf610
   - add bindings for the Cirrus EP93xx GPIO controller
   - add gpio-line-names property to the gpio-pca9570 bindings
   - extend the binding for x-powers,axp209 with another block"

* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
  of: unittest: drop assertions for GPIO hog messages
  gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
  gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
  dt-bindings: gpio: gpio-vf610: Add parsing of hogs
  gpio: lpc18xx: Remove unused of_gpio.h inclusion
  gpio: xra1403: Remove unused of_gpio.h inclusion
  gpio: mpc8xxx: Remove unused of_gpio.h inclusion
  dt-bindings: gpio: Add Cirrus EP93xx
  gpio: mpc8xxx: latch GPIOs state on module load when configured as output
  selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
  gpio: mlxbf3: Add gpio driver support
  gpio: delay: Remove duplicative functionality
  gpio: aggregator: Set up a parser of delay line parameters
  gpio: aggregator: Support delay for setting up individual GPIOs
  gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
  dt-bindings: gpio: pca9570: add gpio-line-names property
  gpiolib: remove unused gpio_cansleep()
  gpio: tps65219: add GPIO support for TPS65219 PMIC
  gpio: zynq: fix zynqmp_gpio not an immutable chip warning
  gpio: davinci: make davinci_gpio_dev_pm_ops static
  ...

3 files changed, 39 insertions, 17 deletions

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index d162afbbe19f..ecbd3784bec3 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2330,7 +2330,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 
 	spin_lock_init(&musb->lock);
 	spin_lock_init(&musb->list_lock);
-	musb->board_set_power = plat->set_power;
 	musb->min_power = plat->min_power;
 	musb->ops = plat->platform_ops;
 	musb->port_mode = plat->mode;
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index b7588d11cfc5..91b5b6b66f96 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -352,8 +352,6 @@ struct musb {
 	u16 epmask;
 	u8 nr_endpoints;
 
-	int			(*board_set_power)(int state);
-
 	u8			min_power;	/* vbus for periph, in mA/2 */
 
 	enum musb_mode		port_mode;
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index a1f29dbc62e6..cbc707fe570f 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -11,6 +11,8 @@
  *   interface.
  */
 
+#include <linux/gpio/consumer.h>
+#include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -30,6 +32,8 @@ struct tusb6010_glue {
 	struct device		*dev;
 	struct platform_device	*musb;
 	struct platform_device	*phy;
+	struct gpio_desc	*enable;
+	struct gpio_desc	*intpin;
 };
 
 static void tusb_musb_set_vbus(struct musb *musb, int is_on);
@@ -1021,16 +1025,29 @@ static void tusb_setup_cpu_interface(struct musb *musb)
 
 static int tusb_musb_start(struct musb *musb)
 {
+	struct tusb6010_glue *glue = dev_get_drvdata(musb->controller->parent);
 	void __iomem	*tbase = musb->ctrl_base;
-	int		ret = 0;
 	unsigned long	flags;
 	u32		reg;
+	int		i;
 
-	if (musb->board_set_power)
-		ret = musb->board_set_power(1);
-	if (ret != 0) {
-		printk(KERN_ERR "tusb: Cannot enable TUSB6010\n");
-		return ret;
+	/*
+	 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
+	 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
+	 * provide then PGOOD signal to TUSB6010 which will release it from reset.
+	 */
+	gpiod_set_value(glue->enable, 1);
+	msleep(1);
+
+	/* Wait for 100ms until TUSB6010 pulls INT pin down */
+	i = 100;
+	while (i && gpiod_get_value(glue->intpin)) {
+		msleep(1);
+		i--;
+	}
+	if (!i) {
+		pr_err("tusb: Powerup respones failed\n");
+		return -ENODEV;
 	}
 
 	spin_lock_irqsave(&musb->lock, flags);
@@ -1083,8 +1100,8 @@ static int tusb_musb_start(struct musb *musb)
 err:
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-	if (musb->board_set_power)
-		musb->board_set_power(0);
+	gpiod_set_value(glue->enable, 0);
+	msleep(10);
 
 	return -ENODEV;
 }
@@ -1158,11 +1175,13 @@ done:
 
 static int tusb_musb_exit(struct musb *musb)
 {
+	struct tusb6010_glue *glue = dev_get_drvdata(musb->controller->parent);
+
 	del_timer_sync(&musb->dev_timer);
 	the_musb = NULL;
 
-	if (musb->board_set_power)
-		musb->board_set_power(0);
+	gpiod_set_value(glue->enable, 0);
+	msleep(10);
 
 	iounmap(musb->sync_va);
 
@@ -1218,6 +1237,15 @@ static int tusb_probe(struct platform_device *pdev)
 
 	glue->dev			= &pdev->dev;
 
+	glue->enable = devm_gpiod_get(glue->dev, "enable", GPIOD_OUT_LOW);
+	if (IS_ERR(glue->enable))
+		return dev_err_probe(glue->dev, PTR_ERR(glue->enable),
+				     "could not obtain power on/off GPIO\n");
+	glue->intpin = devm_gpiod_get(glue->dev, "int", GPIOD_IN);
+	if (IS_ERR(glue->intpin))
+		return dev_err_probe(glue->dev, PTR_ERR(glue->intpin),
+				     "could not obtain INT GPIO\n");
+
 	pdata->platform_ops		= &tusb_ops;
 
 	usb_phy_generic_register();
@@ -1236,10 +1264,7 @@ static int tusb_probe(struct platform_device *pdev)
 	musb_resources[1].end = pdev->resource[1].end;
 	musb_resources[1].flags = pdev->resource[1].flags;
 
-	musb_resources[2].name = pdev->resource[2].name;
-	musb_resources[2].start = pdev->resource[2].start;
-	musb_resources[2].end = pdev->resource[2].end;
-	musb_resources[2].flags = pdev->resource[2].flags;
+	musb_resources[2] = DEFINE_RES_IRQ_NAMED(gpiod_to_irq(glue->intpin), "mc");
 
 	pinfo = tusb_dev_info;
 	pinfo.parent = &pdev->dev;