diff options
Diffstat (limited to 'drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c')
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c | 159 |
1 files changed, 139 insertions, 20 deletions
diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c index 52c81378e36ef4..6560f4fc98d5a3 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c @@ -14,8 +14,74 @@ #include <linux/slab.h> #include <linux/usb/pd.h> #include <linux/usb/tcpm.h> +#include "qcom_pmic_typec.h" #include "qcom_pmic_typec_pdphy.h" +/* PD PHY register offsets and bit fields */ +#define USB_PDPHY_MSG_CONFIG_REG 0x40 +#define MSG_CONFIG_PORT_DATA_ROLE BIT(3) +#define MSG_CONFIG_PORT_POWER_ROLE BIT(2) +#define MSG_CONFIG_SPEC_REV_MASK (BIT(1) | BIT(0)) + +#define USB_PDPHY_EN_CONTROL_REG 0x46 +#define CONTROL_ENABLE BIT(0) + +#define USB_PDPHY_RX_STATUS_REG 0x4A +#define RX_FRAME_TYPE (BIT(0) | BIT(1) | BIT(2)) + +#define USB_PDPHY_FRAME_FILTER_REG 0x4C +#define FRAME_FILTER_EN_HARD_RESET BIT(5) +#define FRAME_FILTER_EN_SOP BIT(0) + +#define USB_PDPHY_TX_SIZE_REG 0x42 +#define TX_SIZE_MASK 0xF + +#define USB_PDPHY_TX_CONTROL_REG 0x44 +#define TX_CONTROL_RETRY_COUNT(n) (((n) & 0x3) << 5) +#define TX_CONTROL_FRAME_TYPE(n) (((n) & 0x7) << 2) +#define TX_CONTROL_FRAME_TYPE_CABLE_RESET (0x1 << 2) +#define TX_CONTROL_SEND_SIGNAL BIT(1) +#define TX_CONTROL_SEND_MSG BIT(0) + +#define USB_PDPHY_RX_SIZE_REG 0x48 + +#define USB_PDPHY_RX_ACKNOWLEDGE_REG 0x4B +#define RX_BUFFER_TOKEN BIT(0) + +#define USB_PDPHY_BIST_MODE_REG 0x4E +#define BIST_MODE_MASK 0xF +#define BIST_ENABLE BIT(7) +#define PD_MSG_BIST 0x3 +#define PD_BIST_TEST_DATA_MODE 0x8 + +#define USB_PDPHY_TX_BUFFER_HDR_REG 0x60 +#define USB_PDPHY_TX_BUFFER_DATA_REG 0x62 + +#define USB_PDPHY_RX_BUFFER_REG 0x80 + +/* VDD regulator */ +#define VDD_PDPHY_VOL_MIN 2800000 /* uV */ +#define VDD_PDPHY_VOL_MAX 3300000 /* uV */ +#define VDD_PDPHY_HPM_LOAD 3000 /* uA */ + +/* Message Spec Rev field */ +#define PD_MSG_HDR_REV(hdr) (((hdr) >> 6) & 3) + +/* timers */ +#define RECEIVER_RESPONSE_TIME 15 /* tReceiverResponse */ +#define HARD_RESET_COMPLETE_TIME 5 /* tHardResetComplete */ + +/* Interrupt numbers */ +#define PMIC_PDPHY_SIG_TX_IRQ 0x0 +#define PMIC_PDPHY_SIG_RX_IRQ 0x1 +#define PMIC_PDPHY_MSG_TX_IRQ 0x2 +#define PMIC_PDPHY_MSG_RX_IRQ 0x3 +#define PMIC_PDPHY_MSG_TX_FAIL_IRQ 0x4 +#define PMIC_PDPHY_MSG_TX_DISCARD_IRQ 0x5 +#define PMIC_PDPHY_MSG_RX_DISCARD_IRQ 0x6 +#define PMIC_PDPHY_FR_SWAP_IRQ 0x7 + + struct pmic_typec_pdphy_irq_data { int virq; int irq; @@ -231,11 +297,13 @@ done: return ret; } -int qcom_pmic_typec_pdphy_pd_transmit(struct pmic_typec_pdphy *pmic_typec_pdphy, - enum tcpm_transmit_type type, - const struct pd_message *msg, - unsigned int negotiated_rev) +static int qcom_pmic_typec_pdphy_pd_transmit(struct tcpc_dev *tcpc, + enum tcpm_transmit_type type, + const struct pd_message *msg, + unsigned int negotiated_rev) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; struct device *dev = pmic_typec_pdphy->dev; int ret; @@ -299,7 +367,7 @@ done: if (!ret) { dev_vdbg(dev, "pd_receive: handing %d bytes to tcpm\n", size); - tcpm_pd_receive(pmic_typec_pdphy->tcpm_port, &msg); + tcpm_pd_receive(pmic_typec_pdphy->tcpm_port, &msg, TCPC_TX_SOP); } } @@ -336,8 +404,10 @@ static irqreturn_t qcom_pmic_typec_pdphy_isr(int irq, void *dev_id) return IRQ_HANDLED; } -int qcom_pmic_typec_pdphy_set_pd_rx(struct pmic_typec_pdphy *pmic_typec_pdphy, bool on) +static int qcom_pmic_typec_pdphy_set_pd_rx(struct tcpc_dev *tcpc, bool on) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; unsigned long flags; int ret; @@ -353,9 +423,12 @@ int qcom_pmic_typec_pdphy_set_pd_rx(struct pmic_typec_pdphy *pmic_typec_pdphy, b return ret; } -int qcom_pmic_typec_pdphy_set_roles(struct pmic_typec_pdphy *pmic_typec_pdphy, - bool data_role_host, bool power_role_src) +static int qcom_pmic_typec_pdphy_set_roles(struct tcpc_dev *tcpc, bool attached, + enum typec_role power_role, + enum typec_data_role data_role) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; struct device *dev = pmic_typec_pdphy->dev; unsigned long flags; int ret; @@ -366,12 +439,13 @@ int qcom_pmic_typec_pdphy_set_roles(struct pmic_typec_pdphy *pmic_typec_pdphy, pmic_typec_pdphy->base + USB_PDPHY_MSG_CONFIG_REG, MSG_CONFIG_PORT_DATA_ROLE | MSG_CONFIG_PORT_POWER_ROLE, - data_role_host << 3 | power_role_src << 2); + (data_role == TYPEC_HOST ? MSG_CONFIG_PORT_DATA_ROLE : 0) | + (power_role == TYPEC_SOURCE ? MSG_CONFIG_PORT_POWER_ROLE : 0)); spin_unlock_irqrestore(&pmic_typec_pdphy->lock, flags); dev_dbg(dev, "pdphy_set_roles: data_role_host=%d power_role_src=%d\n", - data_role_host, power_role_src); + data_role, power_role); return ret; } @@ -435,9 +509,10 @@ done: return ret; } -int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, - struct tcpm_port *tcpm_port) +static int qcom_pmic_typec_pdphy_start(struct pmic_typec *tcpm, + struct tcpm_port *tcpm_port) { + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; int i; int ret; @@ -457,8 +532,9 @@ int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, return 0; } -void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy) +static void qcom_pmic_typec_pdphy_stop(struct pmic_typec *tcpm) { + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; int i; for (i = 0; i < pmic_typec_pdphy->nr_irqs; i++) @@ -469,21 +545,21 @@ void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy) regulator_disable(pmic_typec_pdphy->vdd_pdphy); } -struct pmic_typec_pdphy *qcom_pmic_typec_pdphy_alloc(struct device *dev) -{ - return devm_kzalloc(dev, sizeof(struct pmic_typec_pdphy), GFP_KERNEL); -} - int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev, - struct pmic_typec_pdphy *pmic_typec_pdphy, - struct pmic_typec_pdphy_resources *res, + struct pmic_typec *tcpm, + const struct pmic_typec_pdphy_resources *res, struct regmap *regmap, u32 base) { + struct pmic_typec_pdphy *pmic_typec_pdphy; struct device *dev = &pdev->dev; struct pmic_typec_pdphy_irq_data *irq_data; int i, ret, irq; + pmic_typec_pdphy = devm_kzalloc(dev, sizeof(*pmic_typec_pdphy), GFP_KERNEL); + if (!pmic_typec_pdphy) + return -ENOMEM; + if (!res->nr_irqs || res->nr_irqs > PMIC_PDPHY_MAX_IRQS) return -EINVAL; @@ -522,5 +598,48 @@ int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev, return ret; } + tcpm->pmic_typec_pdphy = pmic_typec_pdphy; + + tcpm->tcpc.set_pd_rx = qcom_pmic_typec_pdphy_set_pd_rx; + tcpm->tcpc.set_roles = qcom_pmic_typec_pdphy_set_roles; + tcpm->tcpc.pd_transmit = qcom_pmic_typec_pdphy_pd_transmit; + + tcpm->pdphy_start = qcom_pmic_typec_pdphy_start; + tcpm->pdphy_stop = qcom_pmic_typec_pdphy_stop; + return 0; } + +const struct pmic_typec_pdphy_resources pm8150b_pdphy_res = { + .irq_params = { + { + .virq = PMIC_PDPHY_SIG_TX_IRQ, + .irq_name = "sig-tx", + }, + { + .virq = PMIC_PDPHY_SIG_RX_IRQ, + .irq_name = "sig-rx", + }, + { + .virq = PMIC_PDPHY_MSG_TX_IRQ, + .irq_name = "msg-tx", + }, + { + .virq = PMIC_PDPHY_MSG_RX_IRQ, + .irq_name = "msg-rx", + }, + { + .virq = PMIC_PDPHY_MSG_TX_FAIL_IRQ, + .irq_name = "msg-tx-failed", + }, + { + .virq = PMIC_PDPHY_MSG_TX_DISCARD_IRQ, + .irq_name = "msg-tx-discarded", + }, + { + .virq = PMIC_PDPHY_MSG_RX_DISCARD_IRQ, + .irq_name = "msg-rx-discarded", + }, + }, + .nr_irqs = 7, +}; |