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Commit 9d40c7c2 authored by Kiran Gunda's avatar Kiran Gunda
Browse files

leds: qti-flash: Update camera flash client interface options 



The value of "QUERY_MAX_AVAIL_CURRENT" option in the "leds-qti-flash"
driver is different from the legacy "leds-qpnp-flash" driver.
As a result, the led flash does not work. To fix this issue update
the option values of "leds-qti-flash" to align with the legacy driver.

Also add logic to handle other options "ENABLE_REGULATOR" and
"DISABLE_REGULATOR" to have backward compatibility.

Change-Id: I8213d53c6b19ccc8da74784e3b428b99fcebcbb7
Signed-off-by: default avatarKiran Gunda <kgunda@codeaurora.org>
parent 50fddb39

drivers/leds/leds-qti-flash.c

+10 −0
Original line number Diff line number Diff line
@@ -601,10 +601,20 @@ int qti_flash_led_prepare(struct led_trigger *trig, int options, 
	snode = container_of(led_cdev, struct flash_switch_data, cdev);



	if (options & QUERY_MAX_AVAIL_CURRENT) {

		if (!max_current) {

			pr_err("Invalid max_current pointer\n");

			return -EINVAL;

		}

		*max_current = snode->led->max_current;

		return 0;

	}



	if (options & ENABLE_REGULATOR)

		return 0;



	if (options & DISABLE_REGULATOR)

		return 0;



	return -EINVAL;

}

EXPORT_SYMBOL(qti_flash_led_prepare);

include/linux/leds-qti-flash.h

+4 −1
Original line number Diff line number Diff line
@@ -8,7 +8,10 @@ 


#include <linux/leds.h>



#define QUERY_MAX_AVAIL_CURRENT		BIT(0)

#define ENABLE_REGULATOR		BIT(0)

#define DISABLE_REGULATOR		BIT(1)

#define QUERY_MAX_AVAIL_CURRENT		BIT(2)

#define QUERY_MAX_CURRENT		BIT(3)



int qpnp_flash_register_led_prepare(struct device *dev, void *data);