Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input updates from Dmitry Torokhov:
 "A few new drivers:

   - driver for Azoteq IQS550/572/525 touch controllers

   - driver for Microchip AT42QT1050 keys

   - driver for GPIO controllable vibrators

   - support for GT5663 in Goodix driver

  ... along with miscellaneous driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: libps2 - mark expected switch fall-through
  Input: qt1050 - add Microchip AT42QT1050 support
  Input: add support for Azoteq IQS550/572/525
  Input: add a driver for GPIO controllable vibrators
  Input: synaptics-rmi4 - fix enum_fmt
  Input: synaptics-rmi4 - fill initial format
  HID: input: add mapping for KEY_KBD_LAYOUT_NEXT
  Input: add KEY_KBD_LAYOUT_NEXT
  Input: hyperv-keyboard - add module description
  Input: olpc_apsp - depend on ARCH_MMP
  Input: sun4i-a10-lradc-keys - add support for A83T
  Input: snvs_pwrkey - use dev_pm_set_wake_irq() to simplify code
  Input: lpc32xx-key - add clocks property and fix DT binding example
  Input: i8042 - signal wakeup from atkbd/psmouse
  Input: goodix - add GT5663 CTP support
  Input: goodix - add regulators suppot
  Input: evdev - use struct_size() in kzalloc() and vzalloc()
  Input: edt-ft5x06 - convert to use SPDX identifier
  Input: edt-ft5x06 - enable ACPI enumeration

1 files changed, 34 insertions, 4 deletions

diff --git a/drivers/input/keyboard/sun4i-lradc-keys.c b/drivers/input/keyboard/sun4i-lradc-keys.c
index 57272df34cd5..df3eec72a9b2 100644
--- a/drivers/input/keyboard/sun4i-lradc-keys.c
+++ b/drivers/input/keyboard/sun4i-lradc-keys.c
@@ -46,6 +46,7 @@
 #define CONTINUE_TIME_SEL(x)	((x) << 16) /* 4 bits */
 #define KEY_MODE_SEL(x)		((x) << 12) /* 2 bits */
 #define LEVELA_B_CNT(x)		((x) << 8)  /* 4 bits */
+#define HOLD_KEY_EN(x)		((x) << 7)
 #define HOLD_EN(x)		((x) << 6)
 #define LEVELB_VOL(x)		((x) << 4)  /* 2 bits */
 #define SAMPLE_RATE(x)		((x) << 2)  /* 2 bits */
@@ -63,6 +64,25 @@
 #define	CHAN0_KEYDOWN_IRQ	BIT(1)
 #define CHAN0_DATA_IRQ		BIT(0)
 
+/* struct lradc_variant - Describe sun4i-a10-lradc-keys hardware variant
+ * @divisor_numerator:		The numerator of lradc Vref internally divisor
+ * @divisor_denominator:	The denominator of lradc Vref internally divisor
+ */
+struct lradc_variant {
+	u8 divisor_numerator;
+	u8 divisor_denominator;
+};
+
+static const struct lradc_variant lradc_variant_a10 = {
+	.divisor_numerator = 2,
+	.divisor_denominator = 3
+};
+
+static const struct lradc_variant r_lradc_variant_a83t = {
+	.divisor_numerator = 3,
+	.divisor_denominator = 4
+};
+
 struct sun4i_lradc_keymap {
 	u32 voltage;
 	u32 keycode;
@@ -74,6 +94,7 @@ struct sun4i_lradc_data {
 	void __iomem *base;
 	struct regulator *vref_supply;
 	struct sun4i_lradc_keymap *chan0_map;
+	const struct lradc_variant *variant;
 	u32 chan0_map_count;
 	u32 chan0_keycode;
 	u32 vref;
@@ -128,9 +149,9 @@ static int sun4i_lradc_open(struct input_dev *dev)
 	if (error)
 		return error;
 
-	/* lradc Vref internally is divided by 2/3 */
-	lradc->vref = regulator_get_voltage(lradc->vref_supply) * 2 / 3;
-
+	lradc->vref = regulator_get_voltage(lradc->vref_supply) *
+		      lradc->variant->divisor_numerator /
+		      lradc->variant->divisor_denominator;
 	/*
 	 * Set sample time to 4 ms / 250 Hz. Wait 2 * 4 ms for key to
 	 * stabilize on press, wait (1 + 1) * 4 ms for key release
@@ -222,6 +243,12 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
 	if (error)
 		return error;
 
+	lradc->variant = of_device_get_match_data(&pdev->dev);
+	if (!lradc->variant) {
+		dev_err(&pdev->dev, "Missing sun4i-a10-lradc-keys variant\n");
+		return -EINVAL;
+	}
+
 	lradc->vref_supply = devm_regulator_get(dev, "vref");
 	if (IS_ERR(lradc->vref_supply))
 		return PTR_ERR(lradc->vref_supply);
@@ -265,7 +292,10 @@ static int sun4i_lradc_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id sun4i_lradc_of_match[] = {
-	{ .compatible = "allwinner,sun4i-a10-lradc-keys", },
+	{ .compatible = "allwinner,sun4i-a10-lradc-keys",
+		.data = &lradc_variant_a10 },
+	{ .compatible = "allwinner,sun8i-a83t-r-lradc",
+		.data = &r_lradc_variant_a83t },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sun4i_lradc_of_match);