linux-kernel - [PATCH v3 02/12] regmap-irq: Remove unused type_reg

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Date:   Sun,  3 Jul 2022 12:20:51 +0100
From:   Aidan MacDonald <aidanmacdonald.0x0@...il.com>
To:     broonie@...nel.org
Cc:     gregkh@...uxfoundation.org, rafael@...nel.org,
        andy.shevchenko@...il.com, krzk@...nel.org,
        m.szyprowski@...sung.com, mazziesaccount@...il.com,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Subject: [PATCH v3 02/12] regmap-irq: Remove unused type_reg_stride field

It appears that no chip ever required a nonzero type_reg_stride
and commit 1066cfbdfa3f ("regmap-irq: Extend sub-irq to support
non-fixed reg strides") broke support. Just remove the field.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@...il.com>
---
 drivers/base/regmap/regmap-irq.c | 6 ------
 include/linux/regmap.h           | 3 ---
 2 files changed, 9 deletions(-)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index a58b29e9c7c7..475a959e2b8b 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -41,7 +41,6 @@ struct regmap_irq_chip_data {
 	unsigned int **virt_buf;
 
 	unsigned int irq_reg_stride;
-	unsigned int type_reg_stride;
 
 	unsigned int clear_status:1;
 };
@@ -743,11 +742,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 	else
 		d->irq_reg_stride = 1;
 
-	if (chip->type_reg_stride)
-		d->type_reg_stride = chip->type_reg_stride;
-	else
-		d->type_reg_stride = 1;
-
 	if (!map->use_single_read && map->reg_stride == 1 &&
 	    d->irq_reg_stride == 1) {
 		d->status_reg_buf = kmalloc_array(chip->num_regs,
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 7c5e4a20e9cf..f75911239977 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -1487,8 +1487,6 @@ struct regmap_irq_sub_irq_map {
  * @num_type_reg:    Number of type registers.
  * @num_virt_regs:   Number of non-standard irq configuration registers.
  *		     If zero unsupported.
- * @type_reg_stride: Stride to use for chips where type registers are not
- *			contiguous.
  * @handle_pre_irq:  Driver specific callback to handle interrupt from device
  *		     before regmap_irq_handler process the interrupts.
  * @handle_post_irq: Driver specific callback to handle interrupt from device
@@ -1539,7 +1537,6 @@ struct regmap_irq_chip {
 
 	int num_type_reg;
 	int num_virt_regs;
-	unsigned int type_reg_stride;
 
 	int (*handle_pre_irq)(void *irq_drv_data);
 	int (*handle_post_irq)(void *irq_drv_data);
-- 
2.35.1