linux-kernel - [PATCH v1 08/16] pinctrl: cy8c95x0; Switch to use for_each_set

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Message-ID: <20250117142304.596106-9-andriy.shevchenko@linux.intel.com>
Date: Fri, 17 Jan 2025 16:21:52 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Patrick Rudolph <patrick.rudolph@...ements.com>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v1 08/16] pinctrl: cy8c95x0; Switch to use for_each_set_clump8()

for_each_set_clump8() has embedded check for unset clump to skip.
Switch driver to use for_each_set_clump8().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/pinctrl/pinctrl-cy8c95x0.c | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-cy8c95x0.c b/drivers/pinctrl/pinctrl-cy8c95x0.c
index d3f4e20d219f..851b4b4fd4cb 100644
--- a/drivers/pinctrl/pinctrl-cy8c95x0.c
+++ b/drivers/pinctrl/pinctrl-cy8c95x0.c
@@ -616,21 +616,18 @@ static int cy8c95x0_write_regs_mask(struct cy8c95x0_pinctrl *chip, int reg,
 {
 	DECLARE_BITMAP(tmask, MAX_LINE);
 	DECLARE_BITMAP(tval, MAX_LINE);
+	unsigned long bits, offset;
 	int write_val;
-	u8 bits;
 	int ret;
 
 	/* Add the 4 bit gap of Gport2 */
 	bitmap_scatter(tmask, mask, chip->map, MAX_LINE);
 	bitmap_scatter(tval, val, chip->map, MAX_LINE);
 
-	for (unsigned int i = 0; i < chip->nport; i++) {
-		/* Skip over unused banks */
-		bits = bitmap_get_value8(tmask, i * BANK_SZ);
-		if (!bits)
-			continue;
+	for_each_set_clump8(offset, bits, tmask, chip->tpin) {
+		unsigned int i = offset / 8;
 
-		write_val = bitmap_get_value8(tval, i * BANK_SZ);
+		write_val = bitmap_get_value8(tval, offset);
 
 		ret = cy8c95x0_regmap_update_bits(chip, reg, i, bits, write_val);
 		if (ret < 0) {
@@ -647,19 +644,16 @@ static int cy8c95x0_read_regs_mask(struct cy8c95x0_pinctrl *chip, int reg,
 {
 	DECLARE_BITMAP(tmask, MAX_LINE);
 	DECLARE_BITMAP(tval, MAX_LINE);
+	unsigned long bits, offset;
 	int read_val;
-	u8 bits;
 	int ret;
 
 	/* Add the 4 bit gap of Gport2 */
 	bitmap_scatter(tmask, mask, chip->map, MAX_LINE);
 	bitmap_scatter(tval, val, chip->map, MAX_LINE);
 
-	for (unsigned int i = 0; i < chip->nport; i++) {
-		/* Skip over unused banks */
-		bits = bitmap_get_value8(tmask, i * BANK_SZ);
-		if (!bits)
-			continue;
+	for_each_set_clump8(offset, bits, tmask, chip->tpin) {
+		unsigned int i = offset / 8;
 
 		ret = cy8c95x0_regmap_read(chip, reg, i, &read_val);
 		if (ret < 0) {
@@ -668,8 +662,8 @@ static int cy8c95x0_read_regs_mask(struct cy8c95x0_pinctrl *chip, int reg,
 		}
 
 		read_val &= bits;
-		read_val |= bitmap_get_value8(tval, i * BANK_SZ) & ~bits;
-		bitmap_set_value8(tval, read_val, i * BANK_SZ);
+		read_val |= bitmap_get_value8(tval, offset) & ~bits;
+		bitmap_set_value8(tval, read_val, offset);
 	}
 
 	/* Fill the 4 bit gap of Gport2 */
-- 
2.43.0.rc1.1336.g36b5255a03ac