From f11df7732d4d4bfdc9b25441be5af3d5ba569cad Mon Sep 17 00:00:00 2001 From: Diana Z Date: Wed, 8 Jan 2020 10:09:09 -0700 Subject: RAA489000: Add TCPC driver The RAA489000 is both a charger and TCPC. This commit adds the driver for the TCPC portion. BRANCH=none BUG=b:147316570 TEST=builds Change-Id: I797a3bf9a6cd15a23b6188e695c6d1abd3ce3980 Signed-off-by: Diana Z Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1991846 Reviewed-by: Aseda Aboagye Tested-by: Aseda Aboagye --- driver/build.mk | 1 + driver/tcpm/raa489000.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++++ driver/tcpm/raa489000.h | 39 +++++++++++++++++++++++++++++++++ 3 files changed, 97 insertions(+) create mode 100644 driver/tcpm/raa489000.c create mode 100644 driver/tcpm/raa489000.h (limited to 'driver') diff --git a/driver/build.mk b/driver/build.mk index 0f530dce78..1f754ec4ec 100644 --- a/driver/build.mk +++ b/driver/build.mk @@ -138,6 +138,7 @@ driver-$(CONFIG_USB_PD_TCPM_PS8751)+=tcpm/ps8xxx.o driver-$(CONFIG_USB_PD_TCPM_PS8805)+=tcpm/ps8xxx.o driver-$(CONFIG_USB_PD_TCPM_TUSB422)+=tcpm/tusb422.o driver-$(CONFIG_USB_PD_TCPM_NCT38XX)+=tcpm/nct38xx.o +driver-$(CONFIG_USB_PD_TCPM_RAA489000)+=tcpm/raa489000.o # Type-C Retimer drivers driver-$(CONFIG_USBC_RETIMER_INTEL_BB)+=retimer/bb_retimer.o diff --git a/driver/tcpm/raa489000.c b/driver/tcpm/raa489000.c new file mode 100644 index 0000000000..30f6b768df --- /dev/null +++ b/driver/tcpm/raa489000.c @@ -0,0 +1,57 @@ +/* Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * Renesas RAA489000 TCPC driver + */ + +#include "i2c.h" +#include "raa489000.h" +#include "tcpci.h" +#include "tcpm.h" + +int raa489000_tcpm_set_cc(int port, int pull) +{ + int rv; + + rv = tcpci_tcpm_set_cc(port, pull); + if (rv) + return rv; + + /* TCPM should set RDOE to 1 after setting Rp */ + if (pull == TYPEC_CC_RP) + rv = tcpc_update16(port, RAA489000_TYPEC_SETTING1, + RAA489000_SETTING1_RDOE, MASK_SET); + + return rv; +} + +/* RAA489000 is a TCPCI compatible port controller */ +const struct tcpm_drv raa489000_tcpm_drv = { + .init = &tcpci_tcpm_init, + .release = &tcpci_tcpm_release, + .get_cc = &tcpci_tcpm_get_cc, +#ifdef CONFIG_USB_PD_VBUS_DETECT_TCPC + .get_vbus_level = &tcpci_tcpm_get_vbus_level, +#endif + .select_rp_value = &tcpci_tcpm_select_rp_value, + .set_cc = &raa489000_tcpm_set_cc, + .set_polarity = &tcpci_tcpm_set_polarity, + .set_vconn = &tcpci_tcpm_set_vconn, + .set_msg_header = &tcpci_tcpm_set_msg_header, + .set_rx_enable = &tcpci_tcpm_set_rx_enable, + .get_message_raw = &tcpci_tcpm_get_message_raw, + .transmit = &tcpci_tcpm_transmit, + .tcpc_alert = &tcpci_tcpc_alert, +#ifdef CONFIG_USB_PD_DISCHARGE_TCPC + .tcpc_discharge_vbus = &tcpci_tcpc_discharge_vbus, +#endif +#ifdef CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE + .drp_toggle = &tcpci_tcpc_drp_toggle, +#endif + .get_chip_info = &tcpci_get_chip_info, +#ifdef CONFIG_USB_PD_TCPC_LOW_POWER + .enter_low_power_mode = &tcpci_enter_low_power_mode, +#endif +}; + diff --git a/driver/tcpm/raa489000.h b/driver/tcpm/raa489000.h new file mode 100644 index 0000000000..1f6f875acb --- /dev/null +++ b/driver/tcpm/raa489000.h @@ -0,0 +1,39 @@ +/* Copyright 2020 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * TCPC driver for Renesas RAA489000 Buck-boost charger with TCPC + */ + +#ifndef __CROS_EC_USB_PD_TCPM_RAA489000_H +#define __CROS_EC_USB_PD_TCPM_RAA489000_H + +#define RAA489000_TCPC0_I2C_FLAGS 0x22 +#define RAA489000_TCPC1_I2C_FLAGS 0x23 +#define RAA489000_TCPC2_I2C_FLAGS 0x24 +#define RAA489000_TCPC3_I2C_FLAGS 0x25 + +/* Vendor registers */ +#define RAA489000_TYPEC_SETTING1 0xC0 + +/* Enables for reverse current protection */ +#define RAA489000_SETTING1_IP2_EN BIT(9) +#define RAA489000_SETTING1_IP1_EN BIT(8) + +/* Switches from dead-battery Rd */ +#define RAA489000_SETTING1_RDOE BIT(7) + +/* CC comparator enables */ +#define RAA489000_SETTING1_CC2_CMP3_EN BIT(6) +#define RAA489000_SETTING1_CC2_CMP2_EN BIT(5) +#define RAA489000_SETTING1_CC2_CMP1_EN BIT(4) +#define RAA489000_SETTING1_CC1_CMP3_EN BIT(3) +#define RAA489000_SETTING1_CC1_CMP2_EN BIT(2) +#define RAA489000_SETTING1_CC1_CMP1_EN BIT(1) + +/* CC debounce enable */ +#define RAA489000_SETTING1_CC_DB_EN BIT(0) + +extern const struct tcpm_drv raa489000_tcpm_drv; + +#endif -- cgit v1.2.1