Unverified Commit 9e3d4f79 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: SDCA: Add SDCA IRQ enable/disable helpers 



Add helpers to enable and disable the SDCA IRQs by Function. These are
useful to sequence the powering down and up around system suspend.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20260109145206.3456151-2-ckeepax@opensource.cirrus.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 8978da8e

include/sound/sdca_interrupts.h

+7 −0
Original line number Diff line number Diff line
@@ -84,4 +84,11 @@ int sdca_irq_populate(struct sdca_function_data *function, 
struct sdca_interrupt_info *sdca_irq_allocate(struct device *dev,

					      struct regmap *regmap, int irq);



void sdca_irq_enable_early(struct sdca_function_data *function,

			   struct sdca_interrupt_info *info);

void sdca_irq_enable(struct sdca_function_data *function,

		     struct sdca_interrupt_info *info);

void sdca_irq_disable(struct sdca_function_data *function,

		      struct sdca_interrupt_info *info);



#endif

sound/soc/sdca/sdca_interrupts.c

+76 −0
Original line number Diff line number Diff line
@@ -541,3 +541,79 @@ struct sdca_interrupt_info *sdca_irq_allocate(struct device *sdev, 
	return info;

}

EXPORT_SYMBOL_NS_GPL(sdca_irq_allocate, "SND_SOC_SDCA");



static void irq_enable_flags(struct sdca_function_data *function,

			     struct sdca_interrupt_info *info, bool early)

{

	struct sdca_interrupt *interrupt;

	int i;



	for (i = 0; i < SDCA_MAX_INTERRUPTS; i++) {

		interrupt = &info->irqs[i];



		if (!interrupt || interrupt->function != function)

			continue;



		switch (SDCA_CTL_TYPE(interrupt->entity->type,

				      interrupt->control->sel)) {

		case SDCA_CTL_TYPE_S(XU, FDL_CURRENTOWNER):

			if (early)

				enable_irq(interrupt->irq);

			break;

		default:

			if (!early)

				enable_irq(interrupt->irq);

			break;

		}

	}

}



/**

 * sdca_irq_enable_early - Re-enable early SDCA IRQs for a given function

 * @function: Pointer to the SDCA Function.

 * @info: Pointer to the SDCA interrupt info for this device.

 *

 * The early version of the IRQ enable allows enabling IRQs which may be

 * necessary to bootstrap functionality for other IRQs, such as the FDL

 * process.

 */

void sdca_irq_enable_early(struct sdca_function_data *function,

			   struct sdca_interrupt_info *info)

{

	irq_enable_flags(function, info, true);

}

EXPORT_SYMBOL_NS_GPL(sdca_irq_enable_early, "SND_SOC_SDCA");



/**

 * sdca_irq_enable - Re-enable SDCA IRQs for a given function

 * @function: Pointer to the SDCA Function.

 * @info: Pointer to the SDCA interrupt info for this device.

 */

void sdca_irq_enable(struct sdca_function_data *function,

		     struct sdca_interrupt_info *info)

{

	irq_enable_flags(function, info, false);

}

EXPORT_SYMBOL_NS_GPL(sdca_irq_enable, "SND_SOC_SDCA");



/**

 * sdca_irq_disable - Disable SDCA IRQs for a given function

 * @function: Pointer to the SDCA Function.

 * @info: Pointer to the SDCA interrupt info for this device.

 */

void sdca_irq_disable(struct sdca_function_data *function,

		      struct sdca_interrupt_info *info)

{

	struct sdca_interrupt *interrupt;

	int i;



	for (i = 0; i < SDCA_MAX_INTERRUPTS; i++) {

		interrupt = &info->irqs[i];



		if (!interrupt || interrupt->function != function)

			continue;



		disable_irq(interrupt->irq);

	}

}

EXPORT_SYMBOL_NS_GPL(sdca_irq_disable, "SND_SOC_SDCA");