extcon: sm5502: Change internal hardware switch according to cable type
This patch changes internal hardware DP_CON/DM_CON switch according to cable type. The SM5502 MUIC device can set hardware switch as following: - OPEN (not connected state) / USB / UART / AUDIO Also, this patch set VBUSIN switch according to cable type. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Chanwoo Choi
Родитель
e1954452f5
Коммит
a75fed2ee6
|
|
@ -228,6 +228,61 @@ static const struct regmap_config sm5502_muic_regmap_config = {
|
|||
.max_register = SM5502_REG_END,
|
||||
};
|
||||
|
||||
/* Change DM_CON/DP_CON/VBUSIN switch according to cable type */
|
||||
static int sm5502_muic_set_path(struct sm5502_muic_info *info,
|
||||
unsigned int con_sw, unsigned int vbus_sw,
|
||||
bool attached)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (!attached) {
|
||||
con_sw = DM_DP_SWITCH_OPEN;
|
||||
vbus_sw = VBUSIN_SWITCH_OPEN;
|
||||
}
|
||||
|
||||
switch (con_sw) {
|
||||
case DM_DP_SWITCH_OPEN:
|
||||
case DM_DP_SWITCH_USB:
|
||||
case DM_DP_SWITCH_AUDIO:
|
||||
case DM_DP_SWITCH_UART:
|
||||
ret = regmap_update_bits(info->regmap, SM5502_REG_MANUAL_SW1,
|
||||
SM5502_REG_MANUAL_SW1_DP_MASK |
|
||||
SM5502_REG_MANUAL_SW1_DM_MASK,
|
||||
con_sw);
|
||||
if (ret < 0) {
|
||||
dev_err(info->dev,
|
||||
"cannot update DM_CON/DP_CON switch\n");
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
dev_err(info->dev, "Unknown DM_CON/DP_CON switch type (%d)\n",
|
||||
con_sw);
|
||||
return -EINVAL;
|
||||
};
|
||||
|
||||
switch (vbus_sw) {
|
||||
case VBUSIN_SWITCH_OPEN:
|
||||
case VBUSIN_SWITCH_VBUSOUT:
|
||||
case VBUSIN_SWITCH_MIC:
|
||||
case VBUSIN_SWITCH_VBUSOUT_WITH_USB:
|
||||
ret = regmap_update_bits(info->regmap, SM5502_REG_MANUAL_SW1,
|
||||
SM5502_REG_MANUAL_SW1_VBUSIN_MASK,
|
||||
vbus_sw);
|
||||
if (ret < 0) {
|
||||
dev_err(info->dev,
|
||||
"cannot update VBUSIN switch\n");
|
||||
return ret;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
dev_err(info->dev, "Unknown VBUS switch type (%d)\n", vbus_sw);
|
||||
return -EINVAL;
|
||||
};
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Return cable type of attached or detached accessories */
|
||||
static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info)
|
||||
{
|
||||
|
|
@ -329,7 +384,10 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
|
|||
static unsigned int prev_cable_type = SM5502_MUIC_ADC_GROUND;
|
||||
const char **cable_names = info->edev->supported_cable;
|
||||
unsigned int cable_type = SM5502_MUIC_ADC_GROUND;
|
||||
unsigned int con_sw = DM_DP_SWITCH_OPEN;
|
||||
unsigned int vbus_sw = VBUSIN_SWITCH_OPEN;
|
||||
unsigned int idx = 0;
|
||||
int ret;
|
||||
|
||||
if (!cable_names)
|
||||
return 0;
|
||||
|
|
@ -344,14 +402,18 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
|
|||
switch (cable_type) {
|
||||
case SM5502_MUIC_ADC_OPEN_USB:
|
||||
idx = EXTCON_CABLE_USB;
|
||||
con_sw = DM_DP_SWITCH_USB;
|
||||
vbus_sw = VBUSIN_SWITCH_VBUSOUT_WITH_USB;
|
||||
break;
|
||||
case SM5502_MUIC_ADC_OPEN_TA:
|
||||
idx = EXTCON_CABLE_TA;
|
||||
con_sw = DM_DP_SWITCH_OPEN;
|
||||
vbus_sw = VBUSIN_SWITCH_VBUSOUT;
|
||||
break;
|
||||
case SM5502_MUIC_ADC_OPEN_USB_OTG:
|
||||
idx = EXTCON_CABLE_USB_HOST;
|
||||
break;
|
||||
case SM5502_MUIC_ADC_GROUND:
|
||||
con_sw = DM_DP_SWITCH_USB;
|
||||
vbus_sw = VBUSIN_SWITCH_OPEN;
|
||||
break;
|
||||
default:
|
||||
dev_dbg(info->dev,
|
||||
|
|
@ -359,6 +421,12 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
|
|||
return 0;
|
||||
};
|
||||
|
||||
/* Change internal hardware path(DM_CON/DP_CON, VBUSIN) */
|
||||
ret = sm5502_muic_set_path(info, con_sw, vbus_sw, attached);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* Change the state of external accessory */
|
||||
extcon_set_cable_state(info->edev, cable_names[idx], attached);
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -223,6 +223,29 @@ enum sm5502_reg {
|
|||
#define SM5502_REG_DEV_TYPE2_TTY_MASK (0x1 << SM5502_REG_DEV_TYPE2_TTY_SHIFT)
|
||||
#define SM5502_REG_DEV_TYPE2_AV_CABLE_MASK (0x1 << SM5502_REG_DEV_TYPE2_AV_CABLE_SHIFT)
|
||||
|
||||
#define SM5502_REG_MANUAL_SW1_VBUSIN_SHIFT 0
|
||||
#define SM5502_REG_MANUAL_SW1_DP_SHIFT 2
|
||||
#define SM5502_REG_MANUAL_SW1_DM_SHIFT 5
|
||||
#define SM5502_REG_MANUAL_SW1_VBUSIN_MASK (0x3 << SM5502_REG_MANUAL_SW1_VBUSIN_SHIFT)
|
||||
#define SM5502_REG_MANUAL_SW1_DP_MASK (0x7 << SM5502_REG_MANUAL_SW1_DP_SHIFT)
|
||||
#define SM5502_REG_MANUAL_SW1_DM_MASK (0x7 << SM5502_REG_MANUAL_SW1_DM_SHIFT)
|
||||
#define VBUSIN_SWITCH_OPEN 0x0
|
||||
#define VBUSIN_SWITCH_VBUSOUT 0x1
|
||||
#define VBUSIN_SWITCH_MIC 0x2
|
||||
#define VBUSIN_SWITCH_VBUSOUT_WITH_USB 0x3
|
||||
#define DM_DP_CON_SWITCH_OPEN 0x0
|
||||
#define DM_DP_CON_SWITCH_USB 0x1
|
||||
#define DM_DP_CON_SWITCH_AUDIO 0x2
|
||||
#define DM_DP_CON_SWITCH_UART 0x3
|
||||
#define DM_DP_SWITCH_OPEN ((DM_DP_CON_SWITCH_OPEN <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
|
||||
| (DM_DP_CON_SWITCH_OPEN <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
|
||||
#define DM_DP_SWITCH_USB ((DM_DP_CON_SWITCH_USB <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
|
||||
| (DM_DP_CON_SWITCH_USB <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
|
||||
#define DM_DP_SWITCH_AUDIO ((DM_DP_CON_SWITCH_AUDIO <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
|
||||
| (DM_DP_CON_SWITCH_AUDIO <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
|
||||
#define DM_DP_SWITCH_UART ((DM_DP_CON_SWITCH_UART <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \
|
||||
| (DM_DP_CON_SWITCH_UART <<SM5502_REG_MANUAL_SW1_DM_SHIFT))
|
||||
|
||||
/* SM5502 Interrupts */
|
||||
enum sm5502_irq {
|
||||
/* INT1 */
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче