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From:   Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
To:     broonie@kernel.org
Cc:     gregkh@linuxfoundation.org, rafael@kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v1 3/6] regmap-irq: Remove type registers
Date:   Tue,  9 May 2023 12:00:57 +0100
Message-Id: <20230509110100.3980123-4-aidanmacdonald.0x0@gmail.com>
In-Reply-To: <20230509110100.3980123-1-aidanmacdonald.0x0@gmail.com>
References: <20230509110100.3980123-1-aidanmacdonald.0x0@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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No remaining users, these have been replaced by config registers.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
---
 drivers/base/regmap/regmap-irq.c | 82 ++++----------------------------
 include/linux/regmap.h           |  7 ---
 2 files changed, 8 insertions(+), 81 deletions(-)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 615b1ced2a5e..b27db5d0b8a7 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -182,20 +182,6 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
 		}
 	}
 
-	/* Don't update the type bits if we're using mask bits for irq type. */
-	if (!d->chip->type_in_mask) {
-		for (i = 0; i < d->chip->num_type_reg; i++) {
-			if (!d->type_buf_def[i])
-				continue;
-			reg = d->get_irq_reg(d, d->chip->type_base, i);
-			ret = regmap_update_bits(d->map, reg,
-						 d->type_buf_def[i], d->type_buf[i]);
-			if (ret != 0)
-				dev_err(d->map->dev, "Failed to sync type in %x\n",
-					reg);
-		}
-	}
-
 	for (i = 0; i < d->chip->num_config_bases; i++) {
 		for (j = 0; j < d->chip->num_config_regs; j++) {
 			reg = d->get_irq_reg(d, d->chip->config_base[i], j);
@@ -274,36 +260,11 @@ static int regmap_irq_set_type(struct irq_data *data, unsigned int type)
 
 	reg = t->type_reg_offset / map->reg_stride;
 
-	if (t->type_reg_mask)
-		d->type_buf[reg] &= ~t->type_reg_mask;
-	else
-		d->type_buf[reg] &= ~(t->type_falling_val |
-				      t->type_rising_val |
-				      t->type_level_low_val |
-				      t->type_level_high_val);
-	switch (type) {
-	case IRQ_TYPE_EDGE_FALLING:
-		d->type_buf[reg] |= t->type_falling_val;
-		break;
-
-	case IRQ_TYPE_EDGE_RISING:
-		d->type_buf[reg] |= t->type_rising_val;
-		break;
-
-	case IRQ_TYPE_EDGE_BOTH:
-		d->type_buf[reg] |= (t->type_falling_val |
-					t->type_rising_val);
-		break;
-
-	case IRQ_TYPE_LEVEL_HIGH:
-		d->type_buf[reg] |= t->type_level_high_val;
-		break;
-
-	case IRQ_TYPE_LEVEL_LOW:
-		d->type_buf[reg] |= t->type_level_low_val;
-		break;
-	default:
-		return -EINVAL;
+	if (d->chip->type_in_mask) {
+		ret = regmap_irq_set_type_config_simple(&d->type_buf, type,
+							irq_data, reg, d->chip->irq_drv_data);
+		if (ret)
+			return ret;
 	}
 
 	if (d->chip->set_type_config) {
@@ -708,8 +669,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 	struct regmap_irq_chip_data *d;
 	int i;
 	int ret = -ENOMEM;
-	int num_type_reg;
-	int num_regs;
 	u32 reg;
 
 	if (chip->num_regs <= 0)
@@ -734,9 +693,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 				return -EINVAL;
 	}
 
-	if (chip->num_type_reg)
-		dev_warn(map->dev, "type registers are deprecated; use config registers instead");
-
 	if (irq_base) {
 		irq_base = irq_alloc_descs(irq_base, 0, chip->num_irqs, 0);
 		if (irq_base < 0) {
@@ -781,21 +737,13 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 			goto err_alloc;
 	}
 
-	/*
-	 * Use num_config_regs if defined, otherwise fall back to num_type_reg
-	 * to maintain backward compatibility.
-	 */
-	num_type_reg = chip->num_config_regs ? chip->num_config_regs
-			: chip->num_type_reg;
-	num_regs = chip->type_in_mask ? chip->num_regs : num_type_reg;
-	if (num_regs) {
-		d->type_buf_def = kcalloc(num_regs,
+	if (chip->type_in_mask) {
+		d->type_buf_def = kcalloc(chip->num_regs,
 					  sizeof(*d->type_buf_def), GFP_KERNEL);
 		if (!d->type_buf_def)
 			goto err_alloc;
 
-		d->type_buf = kcalloc(num_regs, sizeof(*d->type_buf),
-				      GFP_KERNEL);
+		d->type_buf = kcalloc(chip->num_regs, sizeof(*d->type_buf), GFP_KERNEL);
 		if (!d->type_buf)
 			goto err_alloc;
 	}
@@ -971,20 +919,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 		}
 	}
 
-	if (chip->num_type_reg && !chip->type_in_mask) {
-		for (i = 0; i < chip->num_type_reg; ++i) {
-			reg = d->get_irq_reg(d, d->chip->type_base, i);
-
-			ret = regmap_read(map, reg, &d->type_buf_def[i]);
-
-			if (ret) {
-				dev_err(map->dev, "Failed to get type defaults at 0x%x: %d\n",
-					reg, ret);
-				goto err_alloc;
-			}
-		}
-	}
-
 	if (irq_base)
 		d->domain = irq_domain_create_legacy(fwnode, chip->num_irqs,
 						     irq_base, 0,
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index ec3c241542c9..af93b369a19f 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -1542,8 +1542,6 @@ struct regmap_irq_chip_data;
  * @ack_base:    Base ack address. If zero then the chip is clear on read.
  *               Using zero value is possible with @use_ack bit.
  * @wake_base:   Base address for wake enables.  If zero unsupported.
- * @type_base:   Base address for irq type.  If zero unsupported.  Deprecated,
- *		 use @config_base instead.
  * @config_base: Base address for IRQ type config regs. If null unsupported.
  * @irq_reg_stride:  Stride to use for chips where registers are not contiguous.
  * @init_ack_masked: Ack all masked interrupts once during initalization.
@@ -1581,9 +1579,6 @@ struct regmap_irq_chip_data;
  * @irqs:        Descriptors for individual IRQs.  Interrupt numbers are
  *               assigned based on the index in the array of the interrupt.
  * @num_irqs:    Number of descriptors.
- *
- * @num_type_reg:    Number of type registers. Deprecated, use config registers
- *		     instead.
  * @num_config_bases:	Number of config base registers.
  * @num_config_regs:	Number of config registers for each config base register.
  *
@@ -1621,7 +1616,6 @@ struct regmap_irq_chip {
 	unsigned int unmask_base;
 	unsigned int ack_base;
 	unsigned int wake_base;
-	unsigned int type_base;
 	const unsigned int *config_base;
 	unsigned int irq_reg_stride;
 	unsigned int init_ack_masked:1;
@@ -1642,7 +1636,6 @@ struct regmap_irq_chip {
 	const struct regmap_irq *irqs;
 	int num_irqs;
 
-	int num_type_reg;
 	int num_config_bases;
 	int num_config_regs;
 
-- 
2.39.2