summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--MAINTAINERS1
-rw-r--r--drivers/platform/chrome/Kconfig11
-rw-r--r--drivers/platform/chrome/Makefile1
-rw-r--r--drivers/platform/chrome/cros_typec_switch.c170
4 files changed, 0 insertions, 183 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 1d254110c354..8e44c1fa9b90 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4825,7 +4825,6 @@ M: Prashant Malani <pmalani@chromium.org>
L: chrome-platform@lists.linux.dev
S: Maintained
F: drivers/platform/chrome/cros_ec_typec.c
-F: drivers/platform/chrome/cros_typec_switch.c
CHROMEOS EC USB PD NOTIFY DRIVER
M: Prashant Malani <pmalani@chromium.org>
diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
index c62a514a087f..717299cbccac 100644
--- a/drivers/platform/chrome/Kconfig
+++ b/drivers/platform/chrome/Kconfig
@@ -265,17 +265,6 @@ config CHROMEOS_PRIVACY_SCREEN
this should probably always be built into the kernel to avoid or
minimize drm probe deferral.
-config CROS_TYPEC_SWITCH
- tristate "ChromeOS EC Type-C Switch Control"
- depends on MFD_CROS_EC_DEV && TYPEC
- default MFD_CROS_EC_DEV
- help
- If you say Y here, you get support for configuring the Chrome OS EC Type C
- muxes and retimers.
-
- To compile this driver as a module, choose M here: the module will be
- called cros_typec_switch.
-
source "drivers/platform/chrome/wilco_ec/Kconfig"
endif # CHROMEOS_PLATFORMS
diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile
index 0dcaf6a7ed27..52f5a2dde8b8 100644
--- a/drivers/platform/chrome/Makefile
+++ b/drivers/platform/chrome/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_CHROMEOS_TBMC) += chromeos_tbmc.o
obj-$(CONFIG_CROS_EC) += cros_ec.o
obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o
obj-$(CONFIG_CROS_EC_ISHTP) += cros_ec_ishtp.o
-obj-$(CONFIG_CROS_TYPEC_SWITCH) += cros_typec_switch.o
obj-$(CONFIG_CROS_EC_RPMSG) += cros_ec_rpmsg.o
obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o
cros_ec_lpcs-objs := cros_ec_lpc.o cros_ec_lpc_mec.o
diff --git a/drivers/platform/chrome/cros_typec_switch.c b/drivers/platform/chrome/cros_typec_switch.c
deleted file mode 100644
index 0d319e315d57..000000000000
--- a/drivers/platform/chrome/cros_typec_switch.c
+++ /dev/null
@@ -1,170 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2022 Google LLC
- *
- * This driver provides the ability to configure Type C muxes and retimers which are controlled by
- * the Chrome OS EC.
- */
-
-#include <linux/acpi.h>
-#include <linux/module.h>
-#include <linux/platform_data/cros_ec_commands.h>
-#include <linux/platform_device.h>
-#include <linux/usb/typec_retimer.h>
-
-#define DRV_NAME "cros-typec-switch"
-
-/* Handles and other relevant data required for each port's switches. */
-struct cros_typec_port {
- int port_num;
- struct typec_retimer *retimer;
- struct cros_typec_switch_data *sdata;
-};
-
-/* Driver-specific data. */
-struct cros_typec_switch_data {
- struct device *dev;
- struct cros_ec_device *ec;
- struct cros_typec_port *ports[EC_USB_PD_MAX_PORTS];
-};
-
-static int cros_typec_retimer_set(struct typec_retimer *retimer, struct typec_retimer_state *state)
-{
- return 0;
-}
-
-static void cros_typec_unregister_switches(struct cros_typec_switch_data *sdata)
-{
- int i;
-
- for (i = 0; i < EC_USB_PD_MAX_PORTS; i++) {
- if (!sdata->ports[i])
- continue;
- typec_retimer_unregister(sdata->ports[i]->retimer);
- }
-}
-
-static int cros_typec_register_retimer(struct cros_typec_port *port, struct fwnode_handle *fwnode)
-{
- struct typec_retimer_desc retimer_desc = {
- .fwnode = fwnode,
- .drvdata = port,
- .name = fwnode_get_name(fwnode),
- .set = cros_typec_retimer_set,
- };
-
- port->retimer = typec_retimer_register(port->sdata->dev, &retimer_desc);
- if (IS_ERR(port->retimer))
- return PTR_ERR(port->retimer);
-
- return 0;
-}
-
-static int cros_typec_register_switches(struct cros_typec_switch_data *sdata)
-{
- struct cros_typec_port *port = NULL;
- struct device *dev = sdata->dev;
- struct fwnode_handle *fwnode;
- struct acpi_device *adev;
- unsigned long long index;
- int ret = 0;
- int nports;
-
- nports = device_get_child_node_count(dev);
- if (nports == 0) {
- dev_err(dev, "No switch devices found.\n");
- return -ENODEV;
- }
-
- device_for_each_child_node(dev, fwnode) {
- port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
- if (!port) {
- ret = -ENOMEM;
- goto err_switch;
- }
-
- adev = to_acpi_device_node(fwnode);
- if (!adev) {
- dev_err(fwnode->dev, "Couldn't get ACPI device handle\n");
- ret = -ENODEV;
- goto err_switch;
- }
-
- ret = acpi_evaluate_integer(adev->handle, "_ADR", NULL, &index);
- if (ACPI_FAILURE(ret)) {
- dev_err(fwnode->dev, "_ADR wasn't evaluated\n");
- ret = -ENODATA;
- goto err_switch;
- }
-
- if (index < 0 || index >= EC_USB_PD_MAX_PORTS) {
- dev_err(fwnode->dev, "Invalid port index number: %llu", index);
- ret = -EINVAL;
- goto err_switch;
- }
- port->sdata = sdata;
- port->port_num = index;
- sdata->ports[index] = port;
-
- ret = cros_typec_register_retimer(port, fwnode);
- if (ret) {
- dev_err(dev, "Retimer switch register failed\n");
- goto err_switch;
- }
-
- dev_dbg(dev, "Retimer switch registered for index %llu\n", index);
- }
-
- return 0;
-err_switch:
- cros_typec_unregister_switches(sdata);
- return ret;
-}
-
-static int cros_typec_switch_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct cros_typec_switch_data *sdata;
-
- sdata = devm_kzalloc(dev, sizeof(*sdata), GFP_KERNEL);
- if (!sdata)
- return -ENOMEM;
-
- sdata->dev = dev;
- sdata->ec = dev_get_drvdata(pdev->dev.parent);
-
- platform_set_drvdata(pdev, sdata);
-
- return cros_typec_register_switches(sdata);
-}
-
-static int cros_typec_switch_remove(struct platform_device *pdev)
-{
- struct cros_typec_switch_data *sdata = platform_get_drvdata(pdev);
-
- cros_typec_unregister_switches(sdata);
- return 0;
-}
-
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id cros_typec_switch_acpi_id[] = {
- { "GOOG001A", 0 },
- {}
-};
-MODULE_DEVICE_TABLE(acpi, cros_typec_switch_acpi_id);
-#endif
-
-static struct platform_driver cros_typec_switch_driver = {
- .driver = {
- .name = DRV_NAME,
- .acpi_match_table = ACPI_PTR(cros_typec_switch_acpi_id),
- },
- .probe = cros_typec_switch_probe,
- .remove = cros_typec_switch_remove,
-};
-
-module_platform_driver(cros_typec_switch_driver);
-
-MODULE_AUTHOR("Prashant Malani <pmalani@chromium.org>");
-MODULE_DESCRIPTION("Chrome OS EC Type C Switch control");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-12 23:05:06 +0000