Merge tag 'mfd-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add support for ROHM BD71828 PMICs and GPIOs
   - Add support for Qualcomm Aqstic Audio Codecs WCD9340 and WCD9341

  New Device Support:
   - Add support for BD71828 to BD70528 RTC driver
   - Add support for Intel's Jasper Lake to LPSS PCI

  New Functionality:
   - Add support for Power Key to ROHM BD71828
   - Add support for Clocks to ROHM BD71828
   - Add support for GPIOs to Dialog DA9062
   - Add support for USB PD Notify to ChromiumOS EC
   - Allow callers to specify args when requesting regmap lookup; syscon

  Fix-ups:
   - Improve error handling and sanity checking; atmel-hlcdc, dln2
   - Device Tree support/documentation; bd71828, da9062, xylon,logicvc,
     ab8500, max14577, atmel-usart
   - Match devices using platform IDs; bd7xxxx
   - Refactor BD718x7 regulator component; bd718x7-regulator
   - Use standard interfaces/helpers; syscon, sm501
   - Trivial (whitespace, spelling, etc); ab8500-core, Kconfig
   - Remove unused code; db8500-prcmu, tqmx86
   - Wait until boot has finished before accessing registers;
     madera-core
   - Provide missing register value defaults; cs47l15-tables
   - Allow more time for hardware to reset; madera-core

  Bug Fixes:
   - Fix erroneous register values; rohm-bd70528
   - Fix register volatility; axp20x, rn5t618
   - Fix Kconfig dependencies; MFD_MAX77650
   - Fix incorrect compatible string; da9062-core
   - Fix syscon_regmap_lookup_by_phandle_args() stub; syscon"

* tag 'mfd-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (41 commits)
  mfd: syscon: Fix syscon_regmap_lookup_by_phandle_args() dummy
  mfd: wcd934x: Add support to wcd9340/wcd9341 codec
  mfd: syscon: Add arguments support for syscon reference
  mfd: rn5t618: Mark ADC control register volatile
  dt-bindings: atmel-usart: Add microchip,sam9x60-{usart, dbgu}
  dt-bindings: atmel-usart: Remove wildcard
  mfd: cros_ec: Add cros-usbpd-notify subdevice
  mfd: da9062: Fix watchdog compatible string
  mfd: madera: Allow more time for hardware reset
  mfd: cs47l15: Add missing register default
  mfd: madera: Wait for boot done before accessing any other registers
  mfd: Kconfig: Rename Samsung to lowercase
  mfd: tqmx86: remove set but not used variable 'i2c_ien'
  mfd: dbx500-prcmu: Drop DSI pll clock functions
  mfd: dbx500-prcmu: Drop set_display_clocks()
  mfd: max77650: Select REGMAP_IRQ in Kconfig
  mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile
  mfd: ab8500: Fix ab8500-clk typo
  mfd: intel-lpss: Add Intel Jasper Lake PCI IDs
  dt-bindings: mfd: max14577: Add reference to max14040_battery.txt descriptions
  ...

1 files changed, 30 insertions, 1 deletions

diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index e22197c832e8..3a97816d0cba 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -224,6 +224,35 @@ struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np,
 }
 EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_phandle);
 
+struct regmap *syscon_regmap_lookup_by_phandle_args(struct device_node *np,
+					const char *property,
+					int arg_count,
+					unsigned int *out_args)
+{
+	struct device_node *syscon_np;
+	struct of_phandle_args args;
+	struct regmap *regmap;
+	unsigned int index;
+	int rc;
+
+	rc = of_parse_phandle_with_fixed_args(np, property, arg_count,
+			0, &args);
+	if (rc)
+		return ERR_PTR(rc);
+
+	syscon_np = args.np;
+	if (!syscon_np)
+		return ERR_PTR(-ENODEV);
+
+	regmap = syscon_node_to_regmap(syscon_np);
+	for (index = 0; index < arg_count; index++)
+		out_args[index] = args.args[index];
+	of_node_put(syscon_np);
+
+	return regmap;
+}
+EXPORT_SYMBOL_GPL(syscon_regmap_lookup_by_phandle_args);
+
 static int syscon_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -245,7 +274,7 @@ static int syscon_probe(struct platform_device *pdev)
 	if (!base)
 		return -ENOMEM;
 
-	syscon_config.max_register = res->end - res->start - 3;
+	syscon_config.max_register = resource_size(res) - 4;
 	if (pdata)
 		syscon_config.name = pdata->label;
 	syscon->regmap = devm_regmap_init_mmio(dev, base, &syscon_config);