Merge tag 'leds-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "New Drivers:
   - Add support for Allwinner A100 RGB LED controller
   - Add support for Maxim 5970 Dual Hot-swap controller

  New Device Support:
   - Add support for AW20108 to Awinic LED driver

  New Functionality:
   - Extend support for Net speeds to include; 2.5G, 5G and 10G
   - Allow tx/rx and cts/dsr/dcd/rng TTY LEDS to be turned on and off
     via sysfs if required
   - Add support for hardware control in AW200xx

  Fix-ups:
   - Use safer methods for string handling
   - Improve error handling; return proper error values, simplify,
     avoid duplicates, etc
   - Replace Mutex use with the Completion mechanism
   - Fix include lists; alphabetise, remove unused, explicitly add used
   - Use generic platform device properties
   - Use/convert to new/better APIs/helpers/MACROs instead of
     hand-rolling implementations
   - Device Tree binding adaptions/conversions/creation
   - Continue work to remove superfluous platform .remove() call-backs
   - Remove superfluous/defunct code
   - Trivial; whitespace, unused variables, spelling, clean-ups, etc
   - Avoid unnecessary duplicate locks

  Bug Fixes:
   - Repair Kconfig based dependency lists
   - Ensure unused dynamically allocated data is freed after use
   - Fix support for brightness control
   - Add missing sufficient delays during reset to ensure correct
     operation
   - Avoid division-by-zero issues"

* tag 'leds-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (45 commits)
  leds: trigger: netdev: Add core support for hw not supporting fallback to LED sw control
  leds: trigger: panic: Don't register panic notifier if creating the trigger failed
  leds: sun50i-a100: Convert to be agnostic to property provider
  leds: max5970: Add missing headers
  leds: max5970: Make use of dev_err_probe()
  leds: max5970: Make use of device properties
  leds: max5970: Remove unused variable
  leds: rgb: Drop obsolete dependency on COMPILE_TEST
  leds: sun50i-a100: Avoid division-by-zero warning
  leds: trigger: Remove unused function led_trigger_rename_static()
  leds: qcom-lpg: Introduce a wrapper for getting driver data from a pwm chip
  leds: gpio: Add kernel log if devm_fwnode_gpiod_get() fails
  dt-bindings: leds: qcom,spmi-flash-led: Fix example node name
  dt-bindings: leds: aw200xx: Fix led pattern and add reg constraints
  dt-bindings: leds: awinic,aw200xx: Add AW20108 device
  leds: aw200xx: Add support for aw20108 device
  leds: aw200xx: Improve autodim calculation method
  leds: aw200xx: Enable disable_locking flag in regmap config
  leds: aw200xx: Add delay after software reset
  dt-bindings: leds: aw200xx: Remove property "awinic,display-rows"
  ...

1 files changed, 22 insertions, 6 deletions

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 06414e43e0b5..e2e93404133e 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2499,6 +2499,24 @@ static int send_break(struct tty_struct *tty, unsigned int duration)
 }
 
 /**
+ * tty_get_tiocm - get tiocm status register
+ * @tty: tty device
+ *
+ * Obtain the modem status bits from the tty driver if the feature
+ * is supported.
+ */
+int tty_get_tiocm(struct tty_struct *tty)
+{
+	int retval = -ENOTTY;
+
+	if (tty->ops->tiocmget)
+		retval = tty->ops->tiocmget(tty);
+
+	return retval;
+}
+EXPORT_SYMBOL_GPL(tty_get_tiocm);
+
+/**
  * tty_tiocmget - get modem status
  * @tty: tty device
  * @p: pointer to result
@@ -2510,14 +2528,12 @@ static int send_break(struct tty_struct *tty, unsigned int duration)
  */
 static int tty_tiocmget(struct tty_struct *tty, int __user *p)
 {
-	int retval = -ENOTTY;
+	int retval;
 
-	if (tty->ops->tiocmget) {
-		retval = tty->ops->tiocmget(tty);
+	retval = tty_get_tiocm(tty);
+	if (retval >= 0)
+		retval = put_user(retval, p);
 
-		if (retval >= 0)
-			retval = put_user(retval, p);
-	}
 	return retval;
 }