Input: adp5589-keys - use BIT()

Let's use BIT() macro instead of explicitly shifting '1'.
Acked-by: Alexandru Ardelean <Alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201119072440.GA116840@dtor-wsSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/adp5589-keys.c

@@ -7,6 +7,7 @@
  * Copyright (C) 2010-2011 Analog Devices Inc.
  */
 
+#include <linux/bitops.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -153,48 +154,48 @@
 #define ADP5589_5_MAN_ID		0x02
 
 /* GENERAL_CFG Register */
-#define OSC_EN		(1 << 7)
+#define OSC_EN		BIT(7)
 #define CORE_CLK(x)	(((x) & 0x3) << 5)
-#define LCK_TRK_LOGIC	(1 << 4)	/* ADP5589 only */
-#define LCK_TRK_GPI	(1 << 3)	/* ADP5589 only */
-#define INT_CFG		(1 << 1)
-#define RST_CFG		(1 << 0)
+#define LCK_TRK_LOGIC	BIT(4)		/* ADP5589 only */
+#define LCK_TRK_GPI	BIT(3)		/* ADP5589 only */
+#define INT_CFG		BIT(1)
+#define RST_CFG		BIT(0)
 
 /* INT_EN Register */
-#define LOGIC2_IEN	(1 << 5)	/* ADP5589 only */
-#define LOGIC1_IEN	(1 << 4)
-#define LOCK_IEN	(1 << 3)	/* ADP5589 only */
-#define OVRFLOW_IEN	(1 << 2)
-#define GPI_IEN		(1 << 1)
-#define EVENT_IEN	(1 << 0)
+#define LOGIC2_IEN	BIT(5)		/* ADP5589 only */
+#define LOGIC1_IEN	BIT(4)
+#define LOCK_IEN	BIT(3)		/* ADP5589 only */
+#define OVRFLOW_IEN	BIT(2)
+#define GPI_IEN		BIT(1)
+#define EVENT_IEN	BIT(0)
 
 /* Interrupt Status Register */
-#define LOGIC2_INT	(1 << 5)	/* ADP5589 only */
-#define LOGIC1_INT	(1 << 4)
-#define LOCK_INT	(1 << 3)	/* ADP5589 only */
-#define OVRFLOW_INT	(1 << 2)
-#define GPI_INT		(1 << 1)
-#define EVENT_INT	(1 << 0)
+#define LOGIC2_INT	BIT(5)		/* ADP5589 only */
+#define LOGIC1_INT	BIT(4)
+#define LOCK_INT	BIT(3)		/* ADP5589 only */
+#define OVRFLOW_INT	BIT(2)
+#define GPI_INT		BIT(1)
+#define EVENT_INT	BIT(0)
 
 /* STATUS Register */
-#define LOGIC2_STAT	(1 << 7)	/* ADP5589 only */
-#define LOGIC1_STAT	(1 << 6)
-#define LOCK_STAT	(1 << 5)	/* ADP5589 only */
+#define LOGIC2_STAT	BIT(7)		/* ADP5589 only */
+#define LOGIC1_STAT	BIT(6)
+#define LOCK_STAT	BIT(5)		/* ADP5589 only */
 #define KEC		0x1F
 
 /* PIN_CONFIG_D Register */
-#define C4_EXTEND_CFG	(1 << 6)	/* RESET2 */
-#define R4_EXTEND_CFG	(1 << 5)	/* RESET1 */
+#define C4_EXTEND_CFG	BIT(6)		/* RESET2 */
+#define R4_EXTEND_CFG	BIT(5)		/* RESET1 */
 
 /* LOCK_CFG */
-#define LOCK_EN		(1 << 0)
+#define LOCK_EN		BIT(0)
 
 #define PTIME_MASK	0x3
 #define LTIME_MASK	0x3		/* ADP5589 only */
 
 /* Key Event Register xy */
-#define KEY_EV_PRESSED		(1 << 7)
-#define KEY_EV_MASK		(0x7F)
+#define KEY_EV_PRESSED	BIT(7)
+#define KEY_EV_MASK	0x7F
 
 #define KEYP_MAX_EVENT		16
 #define ADP5589_MAXGPIO		19
@@ -472,7 +473,7 @@ static int adp5589_build_gpiomap(struct adp5589_kpad *kpad,
 	memset(pin_used, false, sizeof(pin_used));
 
 	for (i = 0; i < kpad->var->maxgpio; i++)
-		if (pdata->keypad_en_mask & (1 << i))
+		if (pdata->keypad_en_mask & BIT(i))
 			pin_used[i] = true;
 
 	for (i = 0; i < kpad->gpimapsize; i++)
@@ -651,13 +652,13 @@ static int adp5589_setup(struct adp5589_kpad *kpad)
 		unsigned short pin = pdata->gpimap[i].pin;
 
 		if (pin <= kpad->var->gpi_pin_row_end) {
-			evt_mode1 |= (1 << (pin - kpad->var->gpi_pin_row_base));
+			evt_mode1 |= BIT(pin - kpad->var->gpi_pin_row_base);
 		} else {
 			evt_mode2 |=
-			    ((1 << (pin - kpad->var->gpi_pin_col_base)) & 0xFF);
+			    BIT(pin - kpad->var->gpi_pin_col_base) & 0xFF;
 			if (!kpad->is_adp5585)
-				evt_mode3 |= ((1 << (pin -
-					kpad->var->gpi_pin_col_base)) >> 8);
+				evt_mode3 |=
+				    BIT(pin - kpad->var->gpi_pin_col_base) >> 8;
 		}
 	}
 
@@ -677,7 +678,7 @@ static int adp5589_setup(struct adp5589_kpad *kpad)
 		dev_warn(&client->dev, "Conflicting pull resistor config\n");
 
 	for (i = 0; i <= kpad->var->max_row_num; i++) {
-		unsigned val = 0, bit = (1 << i);
+		unsigned int val = 0, bit = BIT(i);
 		if (pdata->pullup_en_300k & bit)
 			val = 0;
 		else if (pdata->pulldown_en_300k & bit)
@@ -697,7 +698,7 @@ static int adp5589_setup(struct adp5589_kpad *kpad)
 	}
 
 	for (i = 0; i <= kpad->var->max_col_num; i++) {
-		unsigned val = 0, bit = 1 << (i + kpad->var->col_shift);
+		unsigned int val = 0, bit = BIT(i + kpad->var->col_shift);
 		if (pdata->pullup_en_300k & bit)
 			val = 0;
 		else if (pdata->pulldown_en_300k & bit)
@@ -813,7 +814,7 @@ static void adp5589_report_switch_state(struct adp5589_kpad *kpad)
 
 		input_report_switch(kpad->input,
 				    kpad->gpimap[i].sw_evt,
-				    !(gpi_stat_tmp & (1 << pin_loc)));
+				    !(gpi_stat_tmp & BIT(pin_loc)));
 	}
 
 	input_sync(kpad->input);
@@ -859,7 +860,7 @@ static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
 			return -EINVAL;
 		}
 
-		if ((1 << (pin - kpad->var->gpi_pin_row_base)) &
+		if (BIT(pin - kpad->var->gpi_pin_row_base) &
 				pdata->keypad_en_mask) {
 			dev_err(&client->dev, "invalid gpi row/col data\n");
 			return -EINVAL;