mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 18:19:02 +00:00
58acb1dd2c
This adds a bunch of patches for the v6.1 Gemini kernel. For v5.15 this was down to a single upstream patch, but for kernel v6.2 I reworked the USB code for FOTG210, so instead of carrying over the half-baked and incomplete patch from v5.15 I just backported all the v6.2 patches, 31 in total, as it creates full device USB mode for e.g. D-Link DNS-313. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
97 lines
2.9 KiB
Diff
97 lines
2.9 KiB
Diff
From 2fbbfb2c556944945639b17b13fcb1e05272b646 Mon Sep 17 00:00:00 2001
|
|
From: Linus Walleij <linus.walleij@linaro.org>
|
|
Date: Wed, 18 Jan 2023 08:09:21 +0100
|
|
Subject: [PATCH 21/29] usb: fotg210-udc: Implement VBUS session
|
|
|
|
Implement VBUS session handling for FOTG210. This is
|
|
mainly used by the UDC driver which needs to call down to
|
|
the FOTG210 core and enable/disable VBUS, as this needs to be
|
|
handled outside of the HCD and UDC drivers, by platform
|
|
specific glue code.
|
|
|
|
The Gemini has a special bit in a system register to turn
|
|
VBUS on and off so we implement this in the FOTG210 core.
|
|
|
|
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
|
Link: https://lore.kernel.org/r/20230103-gemini-fotg210-usb-v2-7-100388af9810@linaro.org
|
|
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
---
|
|
--- a/drivers/usb/fotg210/fotg210-core.c
|
|
+++ b/drivers/usb/fotg210/fotg210-core.c
|
|
@@ -95,6 +95,35 @@ static int fotg210_gemini_init(struct fo
|
|
return 0;
|
|
}
|
|
|
|
+/**
|
|
+ * fotg210_vbus() - Called by gadget driver to enable/disable VBUS
|
|
+ * @enable: true to enable VBUS, false to disable VBUS
|
|
+ */
|
|
+void fotg210_vbus(struct fotg210 *fotg, bool enable)
|
|
+{
|
|
+ u32 mask;
|
|
+ u32 val;
|
|
+ int ret;
|
|
+
|
|
+ switch (fotg->port) {
|
|
+ case GEMINI_PORT_0:
|
|
+ mask = GEMINI_MISC_USB0_VBUS_ON;
|
|
+ val = enable ? GEMINI_MISC_USB0_VBUS_ON : 0;
|
|
+ break;
|
|
+ case GEMINI_PORT_1:
|
|
+ mask = GEMINI_MISC_USB1_VBUS_ON;
|
|
+ val = enable ? GEMINI_MISC_USB1_VBUS_ON : 0;
|
|
+ break;
|
|
+ default:
|
|
+ return;
|
|
+ }
|
|
+ ret = regmap_update_bits(fotg->map, GEMINI_GLOBAL_MISC_CTRL, mask, val);
|
|
+ if (ret)
|
|
+ dev_err(fotg->dev, "failed to %s VBUS\n",
|
|
+ enable ? "enable" : "disable");
|
|
+ dev_info(fotg->dev, "%s: %s VBUS\n", __func__, enable ? "enable" : "disable");
|
|
+}
|
|
+
|
|
static int fotg210_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
--- a/drivers/usb/fotg210/fotg210-udc.c
|
|
+++ b/drivers/usb/fotg210/fotg210-udc.c
|
|
@@ -1095,9 +1095,26 @@ static int fotg210_udc_stop(struct usb_g
|
|
return 0;
|
|
}
|
|
|
|
+/**
|
|
+ * fotg210_vbus_session - Called by external transceiver to enable/disable udc
|
|
+ * @_gadget: usb gadget
|
|
+ * @is_active: 0 if should disable UDC VBUS, 1 if should enable
|
|
+ *
|
|
+ * Returns 0
|
|
+ */
|
|
+static int fotg210_vbus_session(struct usb_gadget *g, int is_active)
|
|
+{
|
|
+ struct fotg210_udc *fotg210 = gadget_to_fotg210(g);
|
|
+
|
|
+ /* Call down to core integration layer to drive or disable VBUS */
|
|
+ fotg210_vbus(fotg210->fotg, is_active);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static const struct usb_gadget_ops fotg210_gadget_ops = {
|
|
.udc_start = fotg210_udc_start,
|
|
.udc_stop = fotg210_udc_stop,
|
|
+ .vbus_session = fotg210_vbus_session,
|
|
};
|
|
|
|
/**
|
|
--- a/drivers/usb/fotg210/fotg210.h
|
|
+++ b/drivers/usb/fotg210/fotg210.h
|
|
@@ -17,6 +17,8 @@ struct fotg210 {
|
|
enum gemini_port port;
|
|
};
|
|
|
|
+void fotg210_vbus(struct fotg210 *fotg, bool enable);
|
|
+
|
|
#ifdef CONFIG_USB_FOTG210_HCD
|
|
int fotg210_hcd_probe(struct platform_device *pdev, struct fotg210 *fotg);
|
|
int fotg210_hcd_remove(struct platform_device *pdev);
|