Unverified Commit 394409aa authored by Guru Das Srinagesh's avatar Guru Das Srinagesh Committed by Mark Brown
Browse files

regmap-irq: Add driver callback to configure virtual regs 



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: default avatarGuru Das Srinagesh <gurus@codeaurora.org>
Link: https://lore.kernel.org/r/07e058cdec2297d15c95c825aa0263064d962d5a.1616613838.git.gurus@codeaurora.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4c501445

drivers/base/regmap/regmap-irq.c

+5 −0
Original line number Diff line number Diff line
@@ -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;

}

include/linux/regmap.h

+4 −0
Original line number Diff line number Diff line
@@ -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;

};