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test VCC_TP regulator

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zeroway
2016-11-02 10:41:51 +00:00
parent 34d5dcc42d
commit 7172a72592
5 changed files with 33 additions and 1 deletions
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1
debug/platform_driver_test/README
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@ -1 +0,0 @@
#include "test_pf.dtsi" in you main dts file

9
debug/platform_driver_test/README.md Normal file
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@ -0,0 +1,9 @@
# Usage
把dtsi文件包行到所使用的dts里
#include "test_pf.dtsi"
在驱动中如何使用下图中的VCC_TP,详见代码
![VCC_TP](./VCC_TP.png)

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debug/platform_driver_test/VCC_TP.png Normal file
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23
debug/platform_driver_test/test_pf.c
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@ -21,17 +21,35 @@
#include <linux/earlysuspend.h>
#endif
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#if 0
/ {
my_test_node {
compatible = "test_platform";
VCC_TP-supply = <&ldo4_reg>;
};
};
#endif
static struct regulator *supply;
static int test_pf_probe(struct platform_device *pdev)
{
int ret;
printk("%s, %d\n", __FUNCTION__, __LINE__);
supply = devm_regulator_get(&pdev->dev, "VCC_TP");
if (IS_ERR(supply)) {
printk("regulator get of vdd_ana failed");
ret = PTR_ERR(supply);
supply = NULL;
return -1;
}
/* Enable the regulator */
ret = regulator_enable(supply);
printk("Enable regulator :) ret = %d\n", ret);
return 0;
}
@ -42,7 +60,12 @@ static const struct of_device_id test_pf_dt_ids[] = {
static int test_pf_remove(struct platform_device *dev)
{
int ret;
printk("%s, %d\n", __FUNCTION__, __LINE__);
/* Disable the regulator */
ret = regulator_disable(supply);
printk("Disable regulator :( ret = %d\n", ret);
return 0;
}

1
debug/platform_driver_test/test_pf.dtsi
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@ -1,5 +1,6 @@
/ {
my_test_node {
compatible = "test_platform";
VCC_TP-supply = <&ldo4_reg>;
};
};