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Commit dc436b81 authored by yushixian's avatar yushixian Committed by Rohit Sekhar
Browse files

regulator: Import esim-regulator driver 

[ALM:10872956] [FP4]:esim power enable
 &&&%%%comment:[FP4]:esim power enable
 &&&%%%bug number:10872956
 &&&%%%product name:sm7225_r_fp4
 &&&%%%root cause:Coding
 &&&%%%Bug category:T2M
 &&&%%%Module_Impact:kernel
 &&&%%%Test_Suggestion:no
 &&&%%%Solution:add esim power
 &&&%%%Test_Report:test is ok
 &&&%%%VAL Can Test:NO

Change-Id: Iab5482999dd29b3bae1144f8d993fbcbd4301a4b
parent d8629893

drivers/regulator/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -145,5 +145,6 @@ obj-$(CONFIG_REGULATOR_REFGEN) += refgen.o 
obj-$(CONFIG_REGULATOR_SPM) += spm-regulator.o

obj-$(CONFIG_REGULATOR_RPMH) += rpmh-regulator.o

obj-$(CONFIG_REGULATOR_STUB) += stub-regulator.o

obj-y += esim-regulator.o 



ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG

drivers/regulator/esim-regulator.c

0 → 100644
+150 −0
Original line number Diff line number Diff line 
#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/err.h>

#include <linux/regulator/consumer.h>

#include <linux/regulator/driver.h>



struct regulator *regulator_l5e = NULL;

const char *regulator_name = "esim_regulator";





static int regulator_status = 0;





static ssize_t esim_power_store(struct class *class,

				struct class_attribute *attr, const char *buf, size_t count)

{

	int ret = 0;



	if ((!strncmp(buf,"1",1))) {

	    ret = regulator_set_voltage(regulator_l5e, 1810000, 1810000); 

		   regulator_status = 1;

		}

	else {

	    ret = regulator_set_voltage(regulator_l5e, 0, 0); 

		   regulator_status = 0;

		}



	return count;



}

static ssize_t esim_power_show(struct class *class,

				struct class_attribute *attr, char *buf)

{

	return sprintf(buf, "%u\n", regulator_status);

}











static struct class_attribute esim_regulator_power =

	__ATTR(esim_power, 0665, esim_power_show, esim_power_store);













static int esim_regulator_creat_file(void)

{

	int ret;

	struct class *esim_regulator_class;



	/* esim_regulator create (/<sysfs>/class/esim_regulator) */

	esim_regulator_class = class_create(THIS_MODULE, "esim_regulator");

	if (IS_ERR(esim_regulator_class)) {

		ret = PTR_ERR(esim_regulator_class);

		printk(KERN_ERR "esim_regulator_class: couldn't create esim_regulator\n");

	}

	if (class_create_file(esim_regulator_class, &esim_regulator_power)) {



			pr_err("%s: esim_regulator_class: couldn't create sub file node\n", __func__);

		}



	return 0;



}





static int esim_regulator_probe(struct platform_device *pdev)

{

	int ret = 0;



	regulator_l5e = regulator_get(&pdev->dev, regulator_name);

		if (IS_ERR(regulator_l5e)) {

			printk("regulator_get regulator fail\n");

			//return -EINVAL;

		}

		else {

	    	ret = regulator_set_voltage(regulator_l5e, 1810000, 1810000); 

	    		if (ret)

	    		{

	        		printk("Could not set to 1.81v.\n");

	    		}

		}



	ret = esim_regulator_creat_file();



	return ret;



}





static int esim_regulator_remove(struct platform_device *pdev)

{





	return 0;

}





static const struct of_device_id esim_regulator_dt_match[] = {

	{.compatible = "qcom,esim-power"},

	{}

};



MODULE_DEVICE_TABLE(of, esim_regulator_dt_match);



static struct platform_driver esim_regulator_driver = {

	.probe = esim_regulator_probe,

	.remove = esim_regulator_remove,

	.shutdown = NULL,

	.driver = {

		.name = "esim-power",

		.of_match_table = esim_regulator_dt_match,

	},

};



static int esim_regulator_register_driver(void)

{

	return platform_driver_register(&esim_regulator_driver);

}







static int __init esim_regulator_init(void)

{



	int ret = 0;



	ret = esim_regulator_register_driver();

	if (ret) {

		pr_err("esim_regulator_driver() failed!\n");

		return ret;

	}



	return ret;



}



module_init(esim_regulator_init);



static void __exit esim_regulator_exit(void)

{

}

module_exit(esim_regulator_exit);



MODULE_DESCRIPTION("Get esim power");

MODULE_LICENSE("GPL v2");