From 290a405ce318d036666c4155d5899eb8cd6e0d97 Mon Sep 17 00:00:00 2001 From: Madhusudanarao Amara Date: Wed, 26 Aug 2020 00:08:11 +0530 Subject: usb: typec: intel_pmc_mux: Un-register the USB role switch Added missing code for un-register USB role switch in the remove and error path. Cc: Stable # v5.8 Reviewed-by: Heikki Krogerus Fixes: 6701adfa9693b ("usb: typec: driver for Intel PMC mux control") Signed-off-by: Madhusudanarao Amara Link: https://lore.kernel.org/r/20200825183811.7262-1-madhusudanarao.amara@intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/mux/intel_pmc_mux.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/usb/typec') diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index e4021e13af40..fd9008f19208 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -497,6 +497,7 @@ err_remove_ports: for (i = 0; i < pmc->num_ports; i++) { typec_switch_unregister(pmc->port[i].typec_sw); typec_mux_unregister(pmc->port[i].typec_mux); + usb_role_switch_unregister(pmc->port[i].usb_sw); } return ret; @@ -510,6 +511,7 @@ static int pmc_usb_remove(struct platform_device *pdev) for (i = 0; i < pmc->num_ports; i++) { typec_switch_unregister(pmc->port[i].typec_sw); typec_mux_unregister(pmc->port[i].typec_mux); + usb_role_switch_unregister(pmc->port[i].usb_sw); } return 0; -- cgit v1.2.3 From 1f3546ff3f0a1000971daef58406954bad3f7061 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Fri, 4 Sep 2020 14:09:18 +0300 Subject: usb: typec: ucsi: acpi: Check the _DEP dependencies Failing probe with -EPROBE_DEFER until all dependencies listed in the _DEP (Operation Region Dependencies) object have been met. This will fix an issue where on some platforms UCSI ACPI driver fails to probe because the address space handler for the operation region that the UCSI ACPI interface uses has not been loaded yet. Fixes: 8243edf44152 ("usb: typec: ucsi: Add ACPI driver") Cc: stable@vger.kernel.org Signed-off-by: Heikki Krogerus Link: https://lore.kernel.org/r/20200904110918.51546-1-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/ucsi/ucsi_acpi.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/usb/typec') diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index 9fc4f338e870..c0aca2f0f23f 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -112,11 +112,15 @@ static void ucsi_acpi_notify(acpi_handle handle, u32 event, void *data) static int ucsi_acpi_probe(struct platform_device *pdev) { + struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); struct ucsi_acpi *ua; struct resource *res; acpi_status status; int ret; + if (adev->dep_unmet) + return -EPROBE_DEFER; + ua = devm_kzalloc(&pdev->dev, sizeof(*ua), GFP_KERNEL); if (!ua) return -ENOMEM; -- cgit v1.2.3 From 294955fd43dbf1e8f3a84cffa4797c6f22badc31 Mon Sep 17 00:00:00 2001 From: Utkarsh Patel Date: Mon, 7 Sep 2020 17:21:51 +0300 Subject: usb: typec: intel_pmc_mux: Do not configure Altmode HPD High According to the PMC Type C Subsystem (TCSS) Mux programming guide rev 0.7, bit 14 is reserved in Alternate mode. In DP Alternate Mode state, if the HPD_STATE (bit 7) field in the status update command VDO is set to HPD_HIGH, HPD is configured via separate HPD mode request after configuring DP Alternate mode request. Configuring reserved bit may show unexpected behaviour. So do not configure them while issuing the Alternate Mode request. Fixes: 7990be48ef4d ("usb: typec: mux: intel: Handle alt mode HPD_HIGH") Cc: stable@vger.kernel.org Signed-off-by: Utkarsh Patel Signed-off-by: Heikki Krogerus Link: https://lore.kernel.org/r/20200907142152.35678-2-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/mux/intel_pmc_mux.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/usb/typec') diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index fd9008f19208..bb9cb4ec4d6f 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -68,7 +68,6 @@ enum { #define PMC_USB_ALTMODE_DP_MODE_SHIFT 8 /* TBT specific Mode Data bits */ -#define PMC_USB_ALTMODE_HPD_HIGH BIT(14) #define PMC_USB_ALTMODE_TBT_TYPE BIT(17) #define PMC_USB_ALTMODE_CABLE_TYPE BIT(18) #define PMC_USB_ALTMODE_ACTIVE_LINK BIT(20) @@ -185,9 +184,6 @@ pmc_usb_mux_dp(struct pmc_usb_port *port, struct typec_mux_state *state) req.mode_data |= (state->mode - TYPEC_STATE_MODAL) << PMC_USB_ALTMODE_DP_MODE_SHIFT; - if (data->status & DP_STATUS_HPD_STATE) - req.mode_data |= PMC_USB_ALTMODE_HPD_HIGH; - ret = pmc_usb_command(port, (void *)&req, sizeof(req)); if (ret) return ret; -- cgit v1.2.3 From 7c6bbdf086ac7f1374bcf1ef0994b15109ecaf48 Mon Sep 17 00:00:00 2001 From: Utkarsh Patel Date: Mon, 7 Sep 2020 17:21:52 +0300 Subject: usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes According to the PMC Type C Subsystem (TCSS) Mux programming guide rev 0.7, bits 4 and 5 are reserved in Alternate modes. SBU Orientation and HSL Orientation needs to be configured only during initial cable detection in USB connect flow based on device property of "sbu-orientation" and "hsl-orientation". Configuring these reserved bits in the Alternate modes may result in delay in display link training or some unexpected behaviour. So do not configure them while issuing Alternate Mode requests. Fixes: ff4a30d5e243 ("usb: typec: mux: intel_pmc_mux: Support for static SBU/HSL orientation") Signed-off-by: Utkarsh Patel Cc: stable Signed-off-by: Heikki Krogerus Link: https://lore.kernel.org/r/20200907142152.35678-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/mux/intel_pmc_mux.c | 8 -------- 1 file changed, 8 deletions(-) (limited to 'drivers/usb/typec') diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c index bb9cb4ec4d6f..ec7da0fa3cf8 100644 --- a/drivers/usb/typec/mux/intel_pmc_mux.c +++ b/drivers/usb/typec/mux/intel_pmc_mux.c @@ -61,8 +61,6 @@ enum { #define PMC_USB_ALTMODE_ORI_SHIFT 1 #define PMC_USB_ALTMODE_UFP_SHIFT 3 -#define PMC_USB_ALTMODE_ORI_AUX_SHIFT 4 -#define PMC_USB_ALTMODE_ORI_HSL_SHIFT 5 /* DP specific Mode Data bits */ #define PMC_USB_ALTMODE_DP_MODE_SHIFT 8 @@ -178,9 +176,6 @@ pmc_usb_mux_dp(struct pmc_usb_port *port, struct typec_mux_state *state) req.mode_data = (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT; req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT; - req.mode_data |= sbu_orientation(port) << PMC_USB_ALTMODE_ORI_AUX_SHIFT; - req.mode_data |= hsl_orientation(port) << PMC_USB_ALTMODE_ORI_HSL_SHIFT; - req.mode_data |= (state->mode - TYPEC_STATE_MODAL) << PMC_USB_ALTMODE_DP_MODE_SHIFT; @@ -208,9 +203,6 @@ pmc_usb_mux_tbt(struct pmc_usb_port *port, struct typec_mux_state *state) req.mode_data = (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT; req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT; - req.mode_data |= sbu_orientation(port) << PMC_USB_ALTMODE_ORI_AUX_SHIFT; - req.mode_data |= hsl_orientation(port) << PMC_USB_ALTMODE_ORI_HSL_SHIFT; - if (TBT_ADAPTER(data->device_mode) == TBT_ADAPTER_TBT3) req.mode_data |= PMC_USB_ALTMODE_TBT_TYPE; -- cgit v1.2.3