SM5504 is another MUIC from Silicon Mitus that is fairly similar to SM5502. They seem to use the same register set, but: - SM5504 has some additional bits in SM5502_REG_CONTROL - SM5504 has a quite different set of interrupts - SM5504 reports USB OTG as dev_type1 = BIT(0) instead of BIT(7) Overall it's minor and we can support this using the existing enum sm5502_types plus a few switch/if statements. Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx> --- Interestingly enough the register set (and especially the interrupts) also look *very* similar to Richtek RT8973A (extcon-rt8973a) but I didn't investigate this further. Note that the changes in this patch are mostly based on guesswork based on a SM5504 driver from Nitin Chaudhary [1] used in some Samsung vendor kernels, since I was not able to find a public datasheet for SM5504. [1]: https://github.com/NitinChaudharyUSC/MSM8x16_8x26/blob/master/drivers/misc/sm5504.c --- drivers/extcon/Kconfig | 2 +- drivers/extcon/extcon-sm5502.c | 164 +++++++++++++++++++++++++++++---- drivers/extcon/extcon-sm5502.h | 79 ++++++++++++++++ 3 files changed, 228 insertions(+), 17 deletions(-) diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig index e3db936becfd..c69d40ae5619 100644 --- a/drivers/extcon/Kconfig +++ b/drivers/extcon/Kconfig @@ -154,7 +154,7 @@ config EXTCON_RT8973A from abnormal high input voltage (up to 28V). config EXTCON_SM5502 - tristate "Silicon Mitus SM5502 EXTCON support" + tristate "Silicon Mitus SM5502/SM5504 EXTCON support" depends on I2C select IRQ_DOMAIN select REGMAP_I2C diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c index 9f40bb9f1f81..9d8f208c68cc 100644 --- a/drivers/extcon/extcon-sm5502.c +++ b/drivers/extcon/extcon-sm5502.c @@ -40,6 +40,7 @@ struct sm5502_muic_info { struct i2c_client *i2c; struct regmap *regmap; + enum sm5502_types type; struct regmap_irq_chip_data *irq_data; struct muic_irq *muic_irqs; unsigned int num_muic_irqs; @@ -90,6 +91,33 @@ static struct reg_data sm5502_reg_data[] = { }, }; +/* Default value of SM5504 register to bring up MUIC device. */ +static struct reg_data sm5504_reg_data[] = { + { + .reg = SM5502_REG_RESET, + .val = SM5502_REG_RESET_MASK, + .invert = true, + }, { + .reg = SM5502_REG_INTMASK1, + .val = SM5504_REG_INTM1_ATTACH_MASK + | SM5504_REG_INTM1_DETACH_MASK, + .invert = false, + }, { + .reg = SM5502_REG_INTMASK2, + .val = SM5504_REG_INTM2_RID_CHG_MASK + | SM5504_REG_INTM2_UVLO_MASK + | SM5504_REG_INTM2_POR_MASK, + .invert = true, + }, { + .reg = SM5502_REG_CONTROL, + .val = SM5502_REG_CONTROL_MANUAL_SW_MASK + | SM5504_REG_CONTROL_CHGTYP_MASK + | SM5504_REG_CONTROL_USBCHDEN_MASK + | SM5504_REG_CONTROL_ADC_EN_MASK, + .invert = true, + }, +}; + /* List of detectable cables */ static const unsigned int sm5502_extcon_cable[] = { EXTCON_USB, @@ -198,6 +226,55 @@ static const struct regmap_irq_chip sm5502_muic_irq_chip = { .num_irqs = ARRAY_SIZE(sm5502_irqs), }; +/* List of supported interrupt for SM5504 */ +static struct muic_irq sm5504_muic_irqs[] = { + { SM5504_IRQ_INT1_ATTACH, "muic-attach" }, + { SM5504_IRQ_INT1_DETACH, "muic-detach" }, + { SM5504_IRQ_INT1_CHG_DET, "muic-chg-det" }, + { SM5504_IRQ_INT1_DCD_OUT, "muic-dcd-out" }, + { SM5504_IRQ_INT1_OVP_EVENT, "muic-ovp-event" }, + { SM5504_IRQ_INT1_CONNECT, "muic-connect" }, + { SM5504_IRQ_INT1_ADC_CHG, "muic-adc-chg" }, + { SM5504_IRQ_INT2_RID_CHG, "muic-rid-chg" }, + { SM5504_IRQ_INT2_UVLO, "muic-uvlo" }, + { SM5504_IRQ_INT2_POR, "muic-por" }, + { SM5504_IRQ_INT2_OVP_FET, "muic-ovp-fet" }, + { SM5504_IRQ_INT2_OCP_LATCH, "muic-ocp-latch" }, + { SM5504_IRQ_INT2_OCP_EVENT, "muic-ocp-event" }, + { SM5504_IRQ_INT2_OVP_OCP_EVENT, "muic-ovp-ocp-event" }, +}; + +/* Define interrupt list of SM5504 to register regmap_irq */ +static const struct regmap_irq sm5504_irqs[] = { + /* INT1 interrupts */ + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_ATTACH_MASK, }, + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_DETACH_MASK, }, + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_CHG_DET_MASK, }, + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_DCD_OUT_MASK, }, + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_OVP_MASK, }, + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_CONNECT_MASK, }, + { .reg_offset = 0, .mask = SM5504_IRQ_INT1_ADC_CHG_MASK, }, + + /* INT2 interrupts */ + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_RID_CHG_MASK,}, + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_UVLO_MASK, }, + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_POR_MASK, }, + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_OVP_FET_MASK, }, + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_OCP_LATCH_MASK, }, + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_OCP_EVENT_MASK, }, + { .reg_offset = 1, .mask = SM5504_IRQ_INT2_OVP_OCP_EVENT_MASK, }, +}; + +static const struct regmap_irq_chip sm5504_muic_irq_chip = { + .name = "sm5504", + .status_base = SM5502_REG_INT1, + .mask_base = SM5502_REG_INTMASK1, + .mask_invert = false, + .num_regs = 2, + .irqs = sm5504_irqs, + .num_irqs = ARRAY_SIZE(sm5504_irqs), +}; + /* Define regmap configuration of SM5502 for I2C communication */ static bool sm5502_muic_volatile_reg(struct device *dev, unsigned int reg) { @@ -276,9 +353,14 @@ static int sm5502_muic_set_path(struct sm5502_muic_info *info, /* Return cable type of attached or detached accessories */ static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info) { - unsigned int cable_type, adc, dev_type1; + unsigned int cable_type, adc, dev_type1, otg_dev_type1; int ret; + if (info->type == TYPE_SM5504) + otg_dev_type1 = SM5504_REG_DEV_TYPE1_USB_OTG_MASK; + else + otg_dev_type1 = SM5502_REG_DEV_TYPE1_USB_OTG_MASK; + /* Read ADC value according to external cable or button */ ret = regmap_read(info->regmap, SM5502_REG_ADC, &adc); if (ret) { @@ -301,11 +383,9 @@ static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info) return ret; } - switch (dev_type1) { - case SM5502_REG_DEV_TYPE1_USB_OTG_MASK: + if (dev_type1 == otg_dev_type1) { cable_type = SM5502_MUIC_ADC_GROUND_USB_OTG; - break; - default: + } else { dev_dbg(info->dev, "cannot identify the cable type: adc(0x%x), dev_type1(0x%x)\n", adc, dev_type1); @@ -358,6 +438,11 @@ static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info) return ret; } + if (dev_type1 == otg_dev_type1) { + cable_type = SM5502_MUIC_ADC_OPEN_USB_OTG; + break; + } + switch (dev_type1) { case SM5502_REG_DEV_TYPE1_USB_SDP_MASK: cable_type = SM5502_MUIC_ADC_OPEN_USB; @@ -365,9 +450,6 @@ static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info) case SM5502_REG_DEV_TYPE1_DEDICATED_CHG_MASK: cable_type = SM5502_MUIC_ADC_OPEN_TA; break; - case SM5502_REG_DEV_TYPE1_USB_OTG_MASK: - cable_type = SM5502_MUIC_ADC_OPEN_USB_OTG; - break; default: dev_dbg(info->dev, "cannot identify the cable type: adc(0x%x)\n", @@ -497,6 +579,34 @@ static int sm5502_parse_irq(struct sm5502_muic_info *info, int irq_type) return 0; } +static int sm5504_parse_irq(struct sm5502_muic_info *info, int irq_type) +{ + switch (irq_type) { + case SM5504_IRQ_INT1_ATTACH: + info->irq_attach = true; + break; + case SM5504_IRQ_INT1_DETACH: + info->irq_detach = true; + break; + case SM5504_IRQ_INT1_CHG_DET: + case SM5504_IRQ_INT1_DCD_OUT: + case SM5504_IRQ_INT1_OVP_EVENT: + case SM5504_IRQ_INT1_CONNECT: + case SM5504_IRQ_INT1_ADC_CHG: + case SM5504_IRQ_INT2_RID_CHG: + case SM5504_IRQ_INT2_UVLO: + case SM5504_IRQ_INT2_POR: + case SM5504_IRQ_INT2_OVP_FET: + case SM5504_IRQ_INT2_OCP_LATCH: + case SM5504_IRQ_INT2_OCP_EVENT: + case SM5504_IRQ_INT2_OVP_OCP_EVENT: + default: + break; + } + + return 0; +} + static irqreturn_t sm5502_muic_irq_handler(int irq, void *data) { struct sm5502_muic_info *info = data; @@ -506,7 +616,10 @@ static irqreturn_t sm5502_muic_irq_handler(int irq, void *data) if (irq == info->muic_irqs[i].virq) irq_type = info->muic_irqs[i].irq; - ret = sm5502_parse_irq(info, irq_type); + if (info->type == TYPE_SM5504) + ret = sm5504_parse_irq(info, irq_type); + else + ret = sm5502_parse_irq(info, irq_type); if (ret < 0) { dev_warn(info->dev, "cannot handle is interrupt:%d\n", irq_type); @@ -565,6 +678,7 @@ static void sm5502_init_dev_type(struct sm5502_muic_info *info) static int sm5022_muic_i2c_probe(struct i2c_client *i2c) { struct device_node *np = i2c->dev.of_node; + const struct regmap_irq_chip *irq_chip; struct sm5502_muic_info *info; int i, ret, irq_flags; @@ -579,10 +693,26 @@ static int sm5022_muic_i2c_probe(struct i2c_client *i2c) info->dev = &i2c->dev; info->i2c = i2c; info->irq = i2c->irq; - info->muic_irqs = sm5502_muic_irqs; - info->num_muic_irqs = ARRAY_SIZE(sm5502_muic_irqs); - info->reg_data = sm5502_reg_data; - info->num_reg_data = ARRAY_SIZE(sm5502_reg_data); + info->type = (enum sm5502_types)device_get_match_data(info->dev); + + switch (info->type) { + case TYPE_SM5502: + irq_chip = &sm5502_muic_irq_chip; + info->muic_irqs = sm5502_muic_irqs; + info->num_muic_irqs = ARRAY_SIZE(sm5502_muic_irqs); + info->reg_data = sm5502_reg_data; + info->num_reg_data = ARRAY_SIZE(sm5502_reg_data); + break; + case TYPE_SM5504: + irq_chip = &sm5504_muic_irq_chip; + info->muic_irqs = sm5504_muic_irqs; + info->num_muic_irqs = ARRAY_SIZE(sm5504_muic_irqs); + info->reg_data = sm5504_reg_data; + info->num_reg_data = ARRAY_SIZE(sm5504_reg_data); + break; + default: + return -EINVAL; + } mutex_init(&info->mutex); @@ -598,8 +728,8 @@ static int sm5022_muic_i2c_probe(struct i2c_client *i2c) /* Support irq domain for SM5502 MUIC device */ irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT | IRQF_SHARED; - ret = devm_regmap_add_irq_chip(info->dev, info->regmap, info->irq, irq_flags, - 0, &sm5502_muic_irq_chip, &info->irq_data); + ret = devm_regmap_add_irq_chip(info->dev, info->regmap, info->irq, + irq_flags, 0, irq_chip, &info->irq_data); if (ret != 0) { dev_err(info->dev, "failed to request IRQ %d: %d\n", info->irq, ret); @@ -660,7 +790,8 @@ static int sm5022_muic_i2c_probe(struct i2c_client *i2c) } static const struct of_device_id sm5502_dt_match[] = { - { .compatible = "siliconmitus,sm5502-muic" }, + { .compatible = "siliconmitus,sm5502-muic", .data = (void *)TYPE_SM5502 }, + { .compatible = "siliconmitus,sm5504-muic", .data = (void *)TYPE_SM5504 }, { }, }; MODULE_DEVICE_TABLE(of, sm5502_dt_match); @@ -692,6 +823,7 @@ static SIMPLE_DEV_PM_OPS(sm5502_muic_pm_ops, static const struct i2c_device_id sm5502_i2c_id[] = { { "sm5502", TYPE_SM5502 }, + { "sm5504", TYPE_SM5504 }, { } }; MODULE_DEVICE_TABLE(i2c, sm5502_i2c_id); diff --git a/drivers/extcon/extcon-sm5502.h b/drivers/extcon/extcon-sm5502.h index ce1f1ec310c4..0ce00274ed86 100644 --- a/drivers/extcon/extcon-sm5502.h +++ b/drivers/extcon/extcon-sm5502.h @@ -10,6 +10,7 @@ enum sm5502_types { TYPE_SM5502, + TYPE_SM5504, }; /* SM5502 registers */ @@ -93,6 +94,13 @@ enum sm5502_reg { #define SM5502_REG_CONTROL_RAW_DATA_MASK (0x1 << SM5502_REG_CONTROL_RAW_DATA_SHIFT) #define SM5502_REG_CONTROL_SW_OPEN_MASK (0x1 << SM5502_REG_CONTROL_SW_OPEN_SHIFT) +#define SM5504_REG_CONTROL_CHGTYP_SHIFT 5 +#define SM5504_REG_CONTROL_USBCHDEN_SHIFT 6 +#define SM5504_REG_CONTROL_ADC_EN_SHIFT 7 +#define SM5504_REG_CONTROL_CHGTYP_MASK (0x1 << SM5504_REG_CONTROL_CHGTYP_SHIFT) +#define SM5504_REG_CONTROL_USBCHDEN_MASK (0x1 << SM5504_REG_CONTROL_USBCHDEN_SHIFT) +#define SM5504_REG_CONTROL_ADC_EN_MASK (0x1 << SM5504_REG_CONTROL_ADC_EN_SHIFT) + #define SM5502_REG_INTM1_ATTACH_SHIFT 0 #define SM5502_REG_INTM1_DETACH_SHIFT 1 #define SM5502_REG_INTM1_KP_SHIFT 2 @@ -123,6 +131,36 @@ enum sm5502_reg { #define SM5502_REG_INTM2_STUCK_KEY_RCV_MASK (0x1 << SM5502_REG_INTM2_STUCK_KEY_RCV_SHIFT) #define SM5502_REG_INTM2_MHL_MASK (0x1 << SM5502_REG_INTM2_MHL_SHIFT) +#define SM5504_REG_INTM1_ATTACH_SHIFT 0 +#define SM5504_REG_INTM1_DETACH_SHIFT 1 +#define SM5504_REG_INTM1_CHG_DET_SHIFT 2 +#define SM5504_REG_INTM1_DCD_OUT_SHIFT 3 +#define SM5504_REG_INTM1_OVP_EVENT_SHIFT 4 +#define SM5504_REG_INTM1_CONNECT_SHIFT 5 +#define SM5504_REG_INTM1_ADC_CHG_SHIFT 6 +#define SM5504_REG_INTM1_ATTACH_MASK (0x1 << SM5504_REG_INTM1_ATTACH_SHIFT) +#define SM5504_REG_INTM1_DETACH_MASK (0x1 << SM5504_REG_INTM1_DETACH_SHIFT) +#define SM5504_REG_INTM1_CHG_DET_MASK (0x1 << SM5504_REG_INTM1_CHG_DET_SHIFT) +#define SM5504_REG_INTM1_DCD_OUT_MASK (0x1 << SM5504_REG_INTM1_DCD_OUT_SHIFT) +#define SM5504_REG_INTM1_OVP_EVENT_MASK (0x1 << SM5504_REG_INTM1_OVP_EVENT_SHIFT) +#define SM5504_REG_INTM1_CONNECT_MASK (0x1 << SM5504_REG_INTM1_CONNECT_SHIFT) +#define SM5504_REG_INTM1_ADC_CHG_MASK (0x1 << SM5504_REG_INTM1_ADC_CHG_SHIFT) + +#define SM5504_REG_INTM2_RID_CHG_SHIFT 0 +#define SM5504_REG_INTM2_UVLO_SHIFT 1 +#define SM5504_REG_INTM2_POR_SHIFT 2 +#define SM5504_REG_INTM2_OVP_FET_SHIFT 4 +#define SM5504_REG_INTM2_OCP_LATCH_SHIFT 5 +#define SM5504_REG_INTM2_OCP_EVENT_SHIFT 6 +#define SM5504_REG_INTM2_OVP_OCP_EVENT_SHIFT 7 +#define SM5504_REG_INTM2_RID_CHG_MASK (0x1 << SM5504_REG_INTM2_RID_CHG_SHIFT) +#define SM5504_REG_INTM2_UVLO_MASK (0x1 << SM5504_REG_INTM2_UVLO_SHIFT) +#define SM5504_REG_INTM2_POR_MASK (0x1 << SM5504_REG_INTM2_POR_SHIFT) +#define SM5504_REG_INTM2_OVP_FET_MASK (0x1 << SM5504_REG_INTM2_OVP_FET_SHIFT) +#define SM5504_REG_INTM2_OCP_LATCH_MASK (0x1 << SM5504_REG_INTM2_OCP_LATCH_SHIFT) +#define SM5504_REG_INTM2_OCP_EVENT_MASK (0x1 << SM5504_REG_INTM2_OCP_EVENT_SHIFT) +#define SM5504_REG_INTM2_OVP_OCP_EVENT_MASK (0x1 << SM5504_REG_INTM2_OVP_OCP_EVENT_SHIFT) + #define SM5502_REG_ADC_SHIFT 0 #define SM5502_REG_ADC_MASK (0x1f << SM5502_REG_ADC_SHIFT) @@ -199,6 +237,9 @@ enum sm5502_reg { #define SM5502_REG_DEV_TYPE1_DEDICATED_CHG_MASK (0x1 << SM5502_REG_DEV_TYPE1_DEDICATED_CHG_SHIFT) #define SM5502_REG_DEV_TYPE1_USB_OTG_MASK (0x1 << SM5502_REG_DEV_TYPE1_USB_OTG_SHIFT) +#define SM5504_REG_DEV_TYPE1_USB_OTG_SHIFT 0 +#define SM5504_REG_DEV_TYPE1_USB_OTG_MASK (0x1 << SM5504_REG_DEV_TYPE1_USB_OTG_SHIFT) + #define SM5502_REG_DEV_TYPE2_JIG_USB_ON_SHIFT 0 #define SM5502_REG_DEV_TYPE2_JIG_USB_OFF_SHIFT 1 #define SM5502_REG_DEV_TYPE2_JIG_UART_ON_SHIFT 2 @@ -277,4 +318,42 @@ enum sm5502_irq { #define SM5502_IRQ_INT2_STUCK_KEY_RCV_MASK BIT(4) #define SM5502_IRQ_INT2_MHL_MASK BIT(5) +/* SM5504 Interrupts */ +enum sm5504_irq { + /* INT1 */ + SM5504_IRQ_INT1_ATTACH, + SM5504_IRQ_INT1_DETACH, + SM5504_IRQ_INT1_CHG_DET, + SM5504_IRQ_INT1_DCD_OUT, + SM5504_IRQ_INT1_OVP_EVENT, + SM5504_IRQ_INT1_CONNECT, + SM5504_IRQ_INT1_ADC_CHG, + + /* INT2 */ + SM5504_IRQ_INT2_RID_CHG, + SM5504_IRQ_INT2_UVLO, + SM5504_IRQ_INT2_POR, + SM5504_IRQ_INT2_OVP_FET, + SM5504_IRQ_INT2_OCP_LATCH, + SM5504_IRQ_INT2_OCP_EVENT, + SM5504_IRQ_INT2_OVP_OCP_EVENT, + + SM5504_IRQ_NUM, +}; + +#define SM5504_IRQ_INT1_ATTACH_MASK BIT(0) +#define SM5504_IRQ_INT1_DETACH_MASK BIT(1) +#define SM5504_IRQ_INT1_CHG_DET_MASK BIT(2) +#define SM5504_IRQ_INT1_DCD_OUT_MASK BIT(3) +#define SM5504_IRQ_INT1_OVP_MASK BIT(4) +#define SM5504_IRQ_INT1_CONNECT_MASK BIT(5) +#define SM5504_IRQ_INT1_ADC_CHG_MASK BIT(6) +#define SM5504_IRQ_INT2_RID_CHG_MASK BIT(0) +#define SM5504_IRQ_INT2_UVLO_MASK BIT(1) +#define SM5504_IRQ_INT2_POR_MASK BIT(2) +#define SM5504_IRQ_INT2_OVP_FET_MASK BIT(4) +#define SM5504_IRQ_INT2_OCP_LATCH_MASK BIT(5) +#define SM5504_IRQ_INT2_OCP_EVENT_MASK BIT(6) +#define SM5504_IRQ_INT2_OVP_OCP_EVENT_MASK BIT(7) + #endif /* __LINUX_EXTCON_SM5502_H */ -- 2.31.1
