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([212.34.12.50]) by smtp.gmail.com with ESMTPSA id d4-20020a170906370400b0099bd8c1f67esm9654593ejc.109.2023.09.27.10.57.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Sep 2023 10:57:47 -0700 (PDT) From: Abdel Alkuor To: heikki.krogerus@linux.intel.com, krzysztof.kozlowski+dt@linaro.org, bryan.odonoghue@linaro.org Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, ryan.eleceng@gmail.com, robh+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, Abdel Alkuor Subject: [PATCH v7 10/14] USB: typec: tps6598x: Add port registration for tps25750 Date: Wed, 27 Sep 2023 13:53:44 -0400 Message-Id: <20230927175348.18041-11-alkuor@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230927175348.18041-1-alkuor@gmail.com> References: <20230927175348.18041-1-alkuor@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-0.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_WEB,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net From: Abdel Alkuor TPS25750 doesn't have system configuration register to get dr/pr of the current applied binary configuration. Get data role from the device node and power role from PD status register. Signed-off-by: Abdel Alkuor --- Changes in v7: - Add driver name to commit subject Changes in v6: - Add port registration to tipd data factory Changes in v5: - Incorporating tps25750 into tps6598x driver drivers/usb/typec/tipd/core.c | 68 ++++++++++++++++++++++++++++++- drivers/usb/typec/tipd/tps6598x.h | 10 +++++ 2 files changed, 77 insertions(+), 1 deletion(-) diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c index bd877e4cdb72..e775c3c9bf64 100644 --- a/drivers/usb/typec/tipd/core.c +++ b/drivers/usb/typec/tipd/core.c @@ -39,6 +39,7 @@ #define TPS_REG_CTRL_CONF 0x29 #define TPS_REG_BOOT_STATUS 0x2D #define TPS_REG_POWER_STATUS 0x3f +#define TPS_REG_PD_STATUS 0x40 #define TPS_REG_RX_IDENTITY_SOP 0x48 #define TPS_REG_DATA_STATUS 0x5f @@ -101,8 +102,11 @@ static const char *const modes[] = { /* Unrecognized commands will be replaced with "!CMD" */ #define INVALID_CMD(_cmd_) (_cmd_ == 0x444d4321) +struct tps6598x; + struct tipd_data { irq_handler_t irq_handler; + int (*register_port)(struct tps6598x *tps, struct fwnode_handle *node); }; struct tps6598x { @@ -207,6 +211,11 @@ static inline int tps6598x_read64(struct tps6598x *tps, u8 reg, u64 *val) return tps6598x_block_read(tps, reg, val, sizeof(u64)); } +static inline int tps6598x_write8(struct tps6598x *tps, u8 reg, u8 val) +{ + return tps6598x_block_write(tps, reg, &val, sizeof(u8)); +} + static inline int tps6598x_write64(struct tps6598x *tps, u8 reg, u64 val) { return tps6598x_block_write(tps, reg, &val, sizeof(u64)); @@ -1083,16 +1092,73 @@ tps6598x_register_port(struct tps6598x *tps, struct fwnode_handle *fwnode) return 0; } +static int +tps25750_register_port(struct tps6598x *tps, struct fwnode_handle *fwnode) +{ + struct typec_capability typec_cap = { }; + const char *data_role; + u8 pd_status; + int ret; + + ret = tps6598x_read8(tps, TPS_REG_PD_STATUS, &pd_status); + if (ret) + return ret; + + ret = fwnode_property_read_string(fwnode, "data-role", &data_role); + if (ret) { + dev_err(tps->dev, "data-role not found: %d\n", ret); + return ret; + } + + ret = typec_find_port_data_role(data_role); + if (ret < 0) { + dev_err(tps->dev, "unknown data-role: %s\n", data_role); + return ret; + } + + typec_cap.data = ret; + typec_cap.revision = USB_TYPEC_REV_1_3; + typec_cap.pd_revision = 0x300; + typec_cap.driver_data = tps; + typec_cap.ops = &tps6598x_ops; + typec_cap.fwnode = fwnode; + typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE; + + switch (TPS_PD_STATUS_PORT_TYPE(pd_status)) { + case TPS_PD_STATUS_PORT_TYPE_SINK_SOURCE: + case TPS_PD_STATUS_PORT_TYPE_SOURCE_SINK: + typec_cap.type = TYPEC_PORT_DRP; + break; + case TPS_PD_STATUS_PORT_TYPE_SINK: + typec_cap.type = TYPEC_PORT_SNK; + break; + case TPS_PD_STATUS_PORT_TYPE_SOURCE: + typec_cap.type = TYPEC_PORT_SRC; + break; + default: + return -ENODEV; + } + + tps->port = typec_register_port(tps->dev, &typec_cap); + if (IS_ERR(tps->port)) + return PTR_ERR(tps->port); + + return 0; +} + static const struct tipd_data cd321x_data = { .irq_handler = cd321x_interrupt, + .register_port = tps6598x_register_port, }; static const struct tipd_data tps6598x_data = { .irq_handler = tps6598x_interrupt, + .register_port = tps6598x_register_port, }; static const struct tipd_data tps25750_data = { .irq_handler = tps25750_interrupt, + .register_port = tps25750_register_port, }; static int tps6598x_probe(struct i2c_client *client) @@ -1195,7 +1261,7 @@ static int tps6598x_probe(struct i2c_client *client) if (ret) goto err_role_put; - ret = tps6598x_register_port(tps, fwnode); + ret = tps->cb.register_port(tps, fwnode); if (ret) goto err_role_put; diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h index c000170f4547..3a9a43394134 100644 --- a/drivers/usb/typec/tipd/tps6598x.h +++ b/drivers/usb/typec/tipd/tps6598x.h @@ -203,4 +203,14 @@ #define TPS_BOOT_STATUS_DEAD_BATTERY_FLAG BIT(2) #define TPS_BOOT_STATUS_I2C_EEPROM_PRESENT BIT(3) +/* PD STATUS REG */ +#define TPS_REG_PD_STATUS_PORT_TYPE_MASK GENMASK(5, 4) +#define TPS_PD_STATUS_PORT_TYPE(x) \ + TPS_FIELD_GET(TPS_REG_PD_STATUS_PORT_TYPE_MASK, x) + +#define TPS_PD_STATUS_PORT_TYPE_SINK_SOURCE 0 +#define TPS_PD_STATUS_PORT_TYPE_SINK 1 +#define TPS_PD_STATUS_PORT_TYPE_SOURCE 2 +#define TPS_PD_STATUS_PORT_TYPE_SOURCE_SINK 3 + #endif /* __TPS6598X_H__ */