diff options
| -rw-r--r-- | drivers/usb/chipidea/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/usb/chipidea/core.c | 6 | ||||
| -rw-r--r-- | drivers/usb/chipidea/host.c | 7 | ||||
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 13 | ||||
| -rw-r--r-- | include/linux/usb/chipidea.h | 2 |
5 files changed, 29 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig index ee34e9046f7e..8487fbee0e1f 100644 --- a/drivers/usb/chipidea/Kconfig +++ b/drivers/usb/chipidea/Kconfig @@ -4,6 +4,8 @@ config USB_CHIPIDEA select EXTCON select RESET_CONTROLLER select USB_ULPI_BUS + select MULTIPLEXER + select MUX_GPIO help Say Y here if your system has a dual role high speed USB controller based on ChipIdea silicon IP. It supports: diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 85fc6db48e44..915ff3ba2ecb 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -61,6 +61,7 @@ #include <linux/of.h> #include <linux/regulator/consumer.h> #include <linux/usb/ehci_def.h> +#include <linux/mux/consumer.h> #include "ci.h" #include "udc.h" @@ -687,6 +688,11 @@ static int ci_get_platdata(struct device *dev, if (of_find_property(dev->of_node, "non-zero-ttctrl-ttha", NULL)) platdata->flags |= CI_HDRC_SET_NON_ZERO_TTHA; + platdata->usb_switch = devm_mux_control_get_optional(dev, "usb_switch"); + if (IS_ERR(platdata->usb_switch)){ + return PTR_ERR(platdata->usb_switch); + } + ext_id = ERR_PTR(-ENODEV); ext_vbus = ERR_PTR(-ENODEV); if (of_property_read_bool(dev->of_node, "extcon")) { diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 4638d9b066be..46f0b910826c 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -13,6 +13,7 @@ #include <linux/usb/hcd.h> #include <linux/usb/chipidea.h> #include <linux/regulator/consumer.h> +#include <linux/mux/consumer.h> #include "../host/ehci.h" @@ -164,6 +165,10 @@ static int host_start(struct ci_hdrc *ci) if (ci_otg_is_fsm_mode(ci)) { otg->host = &hcd->self; hcd->self.otg_port = 1; + } else { + ret = mux_control_select(ci->platdata->usb_switch, 1); + if (ret) + goto disable_reg; } } @@ -184,6 +189,8 @@ static void host_stop(struct ci_hdrc *ci) struct usb_hcd *hcd = ci->hcd; if (hcd) { + if (!ci_otg_is_fsm_mode(ci)) + mux_control_deselect(ci->platdata->usb_switch); if (ci->platdata->notify_event) ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_STOPPED_EVENT); diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 9852ec5e6e01..209d3f607bb7 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -19,6 +19,7 @@ #include <linux/usb/gadget.h> #include <linux/usb/otg-fsm.h> #include <linux/usb/chipidea.h> +#include <linux/mux/consumer.h> #include "ci.h" #include "udc.h" @@ -1965,16 +1966,26 @@ void ci_hdrc_gadget_destroy(struct ci_hdrc *ci) static int udc_id_switch_for_device(struct ci_hdrc *ci) { + int ret = 0; + if (ci->is_otg) /* Clear and enable BSV irq */ hw_write_otgsc(ci, OTGSC_BSVIS | OTGSC_BSVIE, OTGSC_BSVIS | OTGSC_BSVIE); - return 0; + if (!ci_otg_is_fsm_mode(ci)) + ret = mux_control_select(ci->platdata->usb_switch, 0); + + if (ci->is_otg && ret) + hw_write_otgsc(ci, OTGSC_BSVIE | OTGSC_BSVIS, OTGSC_BSVIS); + + return ret; } static void udc_id_switch_for_host(struct ci_hdrc *ci) { + mux_control_deselect(ci->platdata->usb_switch); + /* * host doesn't care B_SESSION_VALID event * so clear and disbale BSV irq diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index 07f99362bc90..9ea55a153700 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -10,6 +10,7 @@ #include <linux/usb/otg.h> struct ci_hdrc; +struct mux_control; /** * struct ci_hdrc_cable - structure for external connector cable state tracking @@ -76,6 +77,7 @@ struct ci_hdrc_platform_data { /* VBUS and ID signal state tracking, using extcon framework */ struct ci_hdrc_cable vbus_extcon; struct ci_hdrc_cable id_extcon; + struct mux_control *usb_switch; u32 phy_clkgate_delay_us; }; |