diff options
Diffstat (limited to 'gnu/packages/patches/linux-libre-pinebook-pro-11-usb-typec-altmodes-displayport-Add-hacky-generic-alt.patch')
| -rw-r--r-- | gnu/packages/patches/linux-libre-pinebook-pro-11-usb-typec-altmodes-displayport-Add-hacky-generic-alt.patch | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/gnu/packages/patches/linux-libre-pinebook-pro-11-usb-typec-altmodes-displayport-Add-hacky-generic-alt.patch b/gnu/packages/patches/linux-libre-pinebook-pro-11-usb-typec-altmodes-displayport-Add-hacky-generic-alt.patch new file mode 100644 index 0000000000..383964c34f --- /dev/null +++ b/gnu/packages/patches/linux-libre-pinebook-pro-11-usb-typec-altmodes-displayport-Add-hacky-generic-alt.patch @@ -0,0 +1,121 @@ +From c6e5e01ca875770f71febe4c87f60fd57df86f6f Mon Sep 17 00:00:00 2001 +From: Tobias Schramm <t.schramm@manjaro.org> +Date: Thu, 28 May 2020 14:26:27 +0200 +Subject: [PATCH 11/22] usb: typec: altmodes: displayport: Add hacky, generic + altmode detection + +Do not mainline, hack. + +Signed-off-by: Tobias Schramm <t.schramm@manjaro.org> +--- + drivers/usb/typec/altmodes/displayport.c | 55 ++++++++++++++++++++++-- + 1 file changed, 52 insertions(+), 3 deletions(-) + +diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c +index e62e5e3da01e..a3d03db476aa 100644 +--- a/drivers/usb/typec/altmodes/displayport.c ++++ b/drivers/usb/typec/altmodes/displayport.c +@@ -9,6 +9,8 @@ + */ + + #include <linux/delay.h> ++#include <linux/extcon.h> ++#include <linux/extcon-provider.h> + #include <linux/mutex.h> + #include <linux/module.h> + #include <linux/usb/pd_vdo.h> +@@ -135,15 +137,53 @@ static int dp_altmode_status_update(struct dp_altmode *dp) + return ret; + } + ++static void dp_altmode_update_extcon(struct dp_altmode *dp, bool disconnect) { ++ const struct device *dev = &dp->port->dev; ++ struct extcon_dev* edev = NULL; ++ ++ while (dev) { ++ edev = extcon_find_edev_by_node(dev->of_node); ++ if(!IS_ERR(edev)) { ++ break; ++ } ++ dev = dev->parent; ++ } ++ ++ if (IS_ERR_OR_NULL(edev)) { ++ return; ++ } ++ ++ if (disconnect || !dp->data.conf) { ++ extcon_set_state_sync(edev, EXTCON_DISP_DP, false); ++ } else { ++ union extcon_property_value extcon_true = { .intval = true }; ++ extcon_set_state(edev, EXTCON_DISP_DP, true); ++ if (DP_CONF_GET_PIN_ASSIGN(dp->data.conf) & DP_PIN_ASSIGN_MULTI_FUNC_MASK) { ++ extcon_set_state_sync(edev, EXTCON_USB_HOST, true); ++ extcon_set_property(edev, EXTCON_DISP_DP, EXTCON_PROP_USB_SS, ++ extcon_true); ++ } else { ++ extcon_set_state_sync(edev, EXTCON_USB_HOST, false); ++ } ++ extcon_sync(edev, EXTCON_DISP_DP); ++ extcon_set_state_sync(edev, EXTCON_USB, false); ++ } ++ ++} ++ + static int dp_altmode_configured(struct dp_altmode *dp) + { + int ret; + + sysfs_notify(&dp->alt->dev.kobj, "displayport", "configuration"); + +- if (!dp->data.conf) ++ if (!dp->data.conf) { ++ dp_altmode_update_extcon(dp, true); + return typec_altmode_notify(dp->alt, TYPEC_STATE_USB, + &dp->data); ++ } ++ ++ dp_altmode_update_extcon(dp, false); + + ret = dp_altmode_notify(dp); + if (ret) +@@ -170,9 +210,11 @@ static int dp_altmode_configure_vdm(struct dp_altmode *dp, u32 conf) + if (ret) { + if (DP_CONF_GET_PIN_ASSIGN(dp->data.conf)) + dp_altmode_notify(dp); +- else ++ else { ++ dp_altmode_update_extcon(dp, true); + typec_altmode_notify(dp->alt, TYPEC_STATE_USB, + &dp->data); ++ } + } + + return ret; +@@ -211,6 +253,8 @@ static void dp_altmode_work(struct work_struct *work) + case DP_STATE_EXIT: + if (typec_altmode_exit(dp->alt)) + dev_err(&dp->alt->dev, "Exit Mode Failed!\n"); ++ else ++ dp_altmode_update_extcon(dp, true); + break; + default: + break; +@@ -521,8 +565,13 @@ int dp_altmode_probe(struct typec_altmode *alt) + if (!(DP_CAP_DFP_D_PIN_ASSIGN(port->vdo) & + DP_CAP_UFP_D_PIN_ASSIGN(alt->vdo)) && + !(DP_CAP_UFP_D_PIN_ASSIGN(port->vdo) & +- DP_CAP_DFP_D_PIN_ASSIGN(alt->vdo))) ++ DP_CAP_DFP_D_PIN_ASSIGN(alt->vdo))) { ++ dev_err(&alt->dev, "No compatible pin configuration found:"\ ++ "%04lx -> %04lx, %04lx <- %04lx", ++ DP_CAP_DFP_D_PIN_ASSIGN(port->vdo), DP_CAP_UFP_D_PIN_ASSIGN(alt->vdo), ++ DP_CAP_UFP_D_PIN_ASSIGN(port->vdo), DP_CAP_DFP_D_PIN_ASSIGN(alt->vdo)); + return -ENODEV; ++ } + + ret = sysfs_create_group(&alt->dev.kobj, &dp_altmode_group); + if (ret) +-- +2.30.0 + |