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sm5502: auto enable/disable 8226_smbbp_otg regulator

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Automatically enable/disable 8226_smbbp_otg regulator for kmini3g, s3ve3g to supply connected OTG devices from device's power instead of external power source.

Based on https://github.com/Pavlex4/S3-Neo-Kernel/commit/4f03ed4b33abcf3c0b8277ab9718adefbe4fb874

Change-Id: Ibd2b3fb6417faf630ed13985c26ee45400e88674
This commit is contained in:
prototype74
2020-05-20 15:00:46 +02:00
committed by Francescodario Cuzzocrea
parent f8ae162dec
commit 7d8a76fece
1 changed files with 20 additions and 0 deletions
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drivers/misc/sm5502.c
+20
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@@ -1029,6 +1029,11 @@ static int sm5502_attach_dev(struct sm5502_usbsw *usbsw)
int val1, val2, val3, val4, vbus;
struct sm5502_platform_data *pdata = usbsw->pdata;
struct i2c_client *client = usbsw->client;
#if defined(CONFIG_USB_HOST_NOTIFY)
#if defined(CONFIG_SEC_ATLANTIC_PROJECT) || defined(CONFIG_MACH_S3VE3G_EUR)
struct regulator *otg_regulator = regulator_get(NULL, "8226_smbbp_otg");
#endif
#endif
#if defined(CONFIG_VIDEO_MHL_V2)
/*u8 mhl_ret = 0;*/
#endif
@@ -1157,6 +1162,11 @@ static int sm5502_attach_dev(struct sm5502_usbsw *usbsw)
#endif
sm5502_set_otg(usbsw, SM5502_ATTACHED);
pdata->callback(CABLE_TYPE_OTG, SM5502_ATTACHED);
#if defined(CONFIG_SEC_ATLANTIC_PROJECT) || defined(CONFIG_MACH_S3VE3G_EUR)
if (!regulator_is_enabled(otg_regulator)) {
regulator_enable(otg_regulator);
}
#endif
#endif
/* JIG */
} else if (val2 & DEV_T2_USB_MASK) {
@@ -1270,6 +1280,11 @@ static int sm5502_attach_dev(struct sm5502_usbsw *usbsw)
static int sm5502_detach_dev(struct sm5502_usbsw *usbsw)
{
struct sm5502_platform_data *pdata = usbsw->pdata;
#if defined(CONFIG_USB_HOST_NOTIFY)
#if defined(CONFIG_SEC_ATLANTIC_PROJECT) || defined(CONFIG_MACH_S3VE3G_EUR)
struct regulator *otg_regulator = regulator_get(NULL, "8226_smbbp_otg");
#endif
#endif
#if defined(CONFIG_TOUCHSCREEN_MMS144)
int tsp_noti_ignore = 0;
@@ -1341,6 +1356,11 @@ static int sm5502_detach_dev(struct sm5502_usbsw *usbsw)
sm5502_set_otg(usbsw, SM5502_DETACHED);
pdata->callback(CABLE_TYPE_OTG, SM5502_DETACHED);
#endif
#if defined(CONFIG_SEC_ATLANTIC_PROJECT) || defined(CONFIG_MACH_S3VE3G_EUR)
if (regulator_is_enabled(otg_regulator)) {
regulator_disable(otg_regulator);
}
#endif
#endif
/* JIG */
} else if (usbsw->dev2 & DEV_T2_USB_MASK) {