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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-07 19:42:16 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-07 19:42:16 +0300
commite611c0fe318c6d6827ee2bba660fbc23cf73f7dc (patch)
tree00854551e810b32cceab84157882eab147f2a98c /drivers/gpio/gpiolib-of.c
parent3b69e8b4571125bec1f77f886174fe6cab6b9d75 (diff)
parent347052e3bf1b62a25c11f7a673acfbaf554d67a1 (diff)
downloadlinux-e611c0fe318c6d6827ee2bba660fbc23cf73f7dc.tar.xz
Merge tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY driver updates from Greg KH: "Here are the large set of USB and PHY driver updates for 5.8-rc1. Nothing huge, just lots of little things: - USB gadget fixes and additions all over the place - new PHY drivers - PHY driver fixes and updates - XHCI driver updates - musb driver updates - more USB-serial driver ids added - various USB quirks added - thunderbolt minor updates and fixes - typec updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (245 commits) usb: dwc3: meson-g12a: fix USB2 PHY initialization on G12A and A1 SoCs usb: dwc3: meson-g12a: fix error path when fetching the reset line fails Revert "dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings" Revert "dt-bindings: usb: qcom,dwc3: Add compatible for SC7180" Revert "dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver" USB: serial: ch341: fix lockup of devices with limited prescaler USB: serial: ch341: add basis for quirk detection CDC-ACM: heed quirk also in error handling USB: serial: option: add Telit LE910C1-EUX compositions usb: musb: Fix runtime PM imbalance on error usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle usb: musb: use true for 'use_dma' usb: musb: start session in resume for host port usb: musb: return -ESHUTDOWN in urb when three-strikes error happened USB: serial: qcserial: add DW5816e QDL support thunderbolt: Add trivial .shutdown usb: dwc3: keystone: Turn on USB3 PHY before controller dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property dt-bindings: usb: convert keystone-usb.txt to YAML ...
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
-rw-r--r--drivers/gpio/gpiolib-of.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 2c5dd1349f16..219eb0054233 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -466,6 +466,24 @@ static struct gpio_desc *of_find_arizona_gpio(struct device *dev,
return of_get_named_gpiod_flags(dev->of_node, con_id, 0, of_flags);
}
+static struct gpio_desc *of_find_usb_gpio(struct device *dev,
+ const char *con_id,
+ enum of_gpio_flags *of_flags)
+{
+ /*
+ * Currently this USB quirk is only for the Fairchild FUSB302 host which is using
+ * an undocumented DT GPIO line named "fcs,int_n" without the compulsory "-gpios"
+ * suffix.
+ */
+ if (!IS_ENABLED(CONFIG_TYPEC_FUSB302))
+ return ERR_PTR(-ENOENT);
+
+ if (!con_id || strcmp(con_id, "fcs,int_n"))
+ return ERR_PTR(-ENOENT);
+
+ return of_get_named_gpiod_flags(dev->of_node, con_id, 0, of_flags);
+}
+
struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
unsigned int idx, unsigned long *flags)
{
@@ -510,6 +528,9 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
if (PTR_ERR(desc) == -ENOENT)
desc = of_find_arizona_gpio(dev, con_id, &of_flags);
+ if (PTR_ERR(desc) == -ENOENT)
+ desc = of_find_usb_gpio(dev, con_id, &of_flags);
+
if (IS_ERR(desc))
return desc;