diff mbox series

[v5,2/2] regmap-irq: Add driver callback to configure virtual regs

Message ID 07e058cdec2297d15c95c825aa0263064d962d5a.1616613838.git.gurus@codeaurora.org (mailing list archive)
State Accepted
Commit 394409aafd017adfcffd075595cb01cc456a9327
Headers show
Series Add support for Qualcomm MFD PMIC register layout | expand

Commit Message

Guru Das Srinagesh March 24, 2021, 7:28 p.m. UTC
Enable drivers to configure and modify "virtual" registers, which are
non-standard registers that further configure irq type on some devices.
Since they are non-standard, enable drivers to configure them according
to their particular idiosyncrasies by specifying an optional callback
function while registering with the framework.

Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
---
 drivers/base/regmap/regmap-irq.c | 5 +++++
 include/linux/regmap.h           | 4 ++++
 2 files changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index d1ade76..e6343ccc 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -333,6 +333,11 @@  static int regmap_irq_set_type(struct irq_data *data, unsigned int type)
 	default:
 		return -EINVAL;
 	}
+
+	if (d->chip->set_type_virt)
+		return d->chip->set_type_virt(d->virt_buf, type, data->hwirq,
+					      reg);
+
 	return 0;
 }
 
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 97ec733..f87a11a 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -1426,6 +1426,8 @@  struct regmap_irq_sub_irq_map {
  *		     before regmap_irq_handler process the interrupts.
  * @handle_post_irq: Driver specific callback to handle interrupt from device
  *		     after handling the interrupts in regmap_irq_handler().
+ * @set_type_virt:   Driver specific callback to extend regmap_irq_set_type()
+ *		     and configure virt regs.
  * @irq_drv_data:    Driver specific IRQ data which is passed as parameter when
  *		     driver specific pre/post interrupt handler is called.
  *
@@ -1473,6 +1475,8 @@  struct regmap_irq_chip {
 
 	int (*handle_pre_irq)(void *irq_drv_data);
 	int (*handle_post_irq)(void *irq_drv_data);
+	int (*set_type_virt)(unsigned int **buf, unsigned int type,
+			     unsigned long hwirq, int reg);
 	void *irq_drv_data;
 };