Merge tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Another busy release for regmap with the second half of the maple tree
  register cache implementation, there's some smaller optimisations that
  could be done but this should now be able to replace the rbtree cache
  for most devices.

  We also had a followup from Aidan MacDonald's refactoring of some of
  the regmap-irq interfaces, the conversion is complete so the old
  interfaces are removed. This means that even with the new features for
  the maple tree cache we'd have a nice negative diffstat were it not
  for the addition of a bunch more KUnit coverage.

  There's one GPIO patch in here, it was a dependency for a cleanup of
  an API in the regmap-irq code for which the gpio-104-dio-48e driver
  was the only user.

  Highlights:

   - The maple tree cache can now load in default values more
     efficiently, and is capabale of syncing multiple registers
     in a single write during cache sync

   - More KUnit coverage, including some coverage for raw I/O
     and a dummy RAM backed cache to support it

   - Removal of several old interfaces in regmap-irq now all
     users have been modernised"

* tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (23 commits)
  regmap: Allow reads from write only registers with the flat cache
  regmap: Drop early readability check
  regmap: Check for register readability before checking cache during read
  regmap: Add test to make sure we don't sync to read only registers
  regmap: Add a test case for write only registers
  regmap: Add test that writes to write only registers are prevented
  regmap: Add debugfs file for forcing field writes
  regmap: Don't check for changes in regcache_set_val()
  regmap: maple: Implement block sync for the maple tree cache
  regmap: Provide basic KUnit coverage for the raw register I/O
  regmap: Provide a ram backed regmap with raw support
  regmap: Add missing cache_only checks
  regmap: regmap-irq: Move handle_post_irq to before pm_runtime_put
  regmap: Load register defaults in blocks rather than register by register
  regmap: mmio: Allow passing an empty config->reg_stride
  regmap-irq: Drop backward compatibility for inverted mask/unmask
  regmap-irq: Minor adjustments to .handle_mask_sync()
  regmap-irq: Remove support for not_fixed_stride
  regmap-irq: Remove type registers
  regmap-irq: Remove virtual registers
  ...

1 files changed, 25 insertions, 12 deletions

diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
index f2253fd5ab4b..8ff5f4ff5958 100644
--- a/drivers/gpio/gpio-104-dio-48e.c
+++ b/drivers/gpio/gpio-104-dio-48e.c
@@ -100,13 +100,23 @@ static const struct regmap_irq dio48e_regmap_irqs[] = {
 	DIO48E_REGMAP_IRQ(0), DIO48E_REGMAP_IRQ(1),
 };
 
-static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
+/**
+ * struct dio48e_gpio - GPIO device private data structure
+ * @map:	Regmap for the device
+ * @irq_mask:	Current IRQ mask state on the device
+ */
+struct dio48e_gpio {
+	struct regmap *map;
+	unsigned int irq_mask;
+};
+
+static int dio48e_handle_mask_sync(const int index,
 				   const unsigned int mask_buf_def,
 				   const unsigned int mask_buf,
 				   void *const irq_drv_data)
 {
-	unsigned int *const irq_mask = irq_drv_data;
-	const unsigned int prev_mask = *irq_mask;
+	struct dio48e_gpio *const dio48egpio = irq_drv_data;
+	const unsigned int prev_mask = dio48egpio->irq_mask;
 	int err;
 	unsigned int val;
 
@@ -115,19 +125,19 @@ static int dio48e_handle_mask_sync(struct regmap *const map, const int index,
 		return 0;
 
 	/* remember the current mask for the next mask sync */
-	*irq_mask = mask_buf;
+	dio48egpio->irq_mask = mask_buf;
 
 	/* if all previously masked, enable interrupts when unmasking */
 	if (prev_mask == mask_buf_def) {
-		err = regmap_write(map, DIO48E_CLEAR_INTERRUPT, 0x00);
+		err = regmap_write(dio48egpio->map, DIO48E_CLEAR_INTERRUPT, 0x00);
 		if (err)
 			return err;
-		return regmap_write(map, DIO48E_ENABLE_INTERRUPT, 0x00);
+		return regmap_write(dio48egpio->map, DIO48E_ENABLE_INTERRUPT, 0x00);
 	}
 
 	/* if all are currently masked, disable interrupts */
 	if (mask_buf == mask_buf_def)
-		return regmap_read(map, DIO48E_DISABLE_INTERRUPT, &val);
+		return regmap_read(dio48egpio->map, DIO48E_DISABLE_INTERRUPT, &val);
 
 	return 0;
 }
@@ -168,7 +178,7 @@ static int dio48e_probe(struct device *dev, unsigned int id)
 	struct regmap *map;
 	int err;
 	struct regmap_irq_chip *chip;
-	unsigned int irq_mask;
+	struct dio48e_gpio *dio48egpio;
 	struct regmap_irq_chip_data *chip_data;
 
 	if (!devm_request_region(dev, base[id], DIO48E_EXTENT, name)) {
@@ -186,12 +196,14 @@ static int dio48e_probe(struct device *dev, unsigned int id)
 		return dev_err_probe(dev, PTR_ERR(map),
 				     "Unable to initialize register map\n");
 
-	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
-	if (!chip)
+	dio48egpio = devm_kzalloc(dev, sizeof(*dio48egpio), GFP_KERNEL);
+	if (!dio48egpio)
 		return -ENOMEM;
 
-	chip->irq_drv_data = devm_kzalloc(dev, sizeof(irq_mask), GFP_KERNEL);
-	if (!chip->irq_drv_data)
+	dio48egpio->map = map;
+
+	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
 		return -ENOMEM;
 
 	chip->name = name;
@@ -202,6 +214,7 @@ static int dio48e_probe(struct device *dev, unsigned int id)
 	chip->irqs = dio48e_regmap_irqs;
 	chip->num_irqs = ARRAY_SIZE(dio48e_regmap_irqs);
 	chip->handle_mask_sync = dio48e_handle_mask_sync;
+	chip->irq_drv_data = dio48egpio;
 
 	/* Initialize to prevent spurious interrupts before we're ready */
 	err = dio48e_irq_init_hw(map);