openwrt/target/linux/rockchip/patches-6.6/034-v6.7-usb-dwc3-add-optional-PHY-interface-clocks.patch
John Audia 51bbc8114b kernel: bump 6.6 to 6.6.57
1. Update target/linux/generic/config-6.6 for new ksym
2. Refresh patches

Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.57

Added:
	generic/backport-6.6/777-netfilter-xtables-fix-typo-causing-some-targets-to-not-load-on-IPv6.patch[1]

Manually rebased:
	generic/hack-6.6/645-netfilter-connmark-introduce-set-dscpmark.patch

Removed upstreamed:
	gemini/patches-6.6/0001-net-ethernet-cortina-Drop-TSO-support.patch[2]
	gemini/patches-6.6/0004-net-ethernet-cortina-Restore-TSO-support.patch[3]

All other patches automatically rebased.

1. https://lore.kernel.org/all/20241019-xtables-typos-v2-1-6b8b1735dc8e@0upti.me/
2 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.57&id=452c0740d72c6a77a41f6ddc318a48f18c3d2346
3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.57&id=611f74b0e7fb93ee2366d9d7edca546806b220e9

Build system: x86/64
Build-tested: x86/64/AMD Cezanne, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3
Run-tested: x86/64/AMD Cezanne, flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/16726
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-10-19 16:21:32 +02:00

92 lines
2.7 KiB
Diff

From 97789b93b792fc97ad4476b79e0f38ffa8e7e0ee Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sebastian.reichel@collabora.com>
Date: Fri, 20 Oct 2023 16:11:41 +0200
Subject: [PATCH] usb: dwc3: add optional PHY interface clocks
On Rockchip RK3588 one of the DWC3 cores is integrated weirdly and
requires two extra clocks to be enabled. Without these extra clocks
hot-plugging USB devices is broken.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20231020150022.48725-3-sebastian.reichel@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/dwc3/core.c | 28 ++++++++++++++++++++++++++++
drivers/usb/dwc3/core.h | 4 ++++
2 files changed, 32 insertions(+)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -845,8 +845,20 @@ static int dwc3_clk_enable(struct dwc3 *
if (ret)
goto disable_ref_clk;
+ ret = clk_prepare_enable(dwc->utmi_clk);
+ if (ret)
+ goto disable_susp_clk;
+
+ ret = clk_prepare_enable(dwc->pipe_clk);
+ if (ret)
+ goto disable_utmi_clk;
+
return 0;
+disable_utmi_clk:
+ clk_disable_unprepare(dwc->utmi_clk);
+disable_susp_clk:
+ clk_disable_unprepare(dwc->susp_clk);
disable_ref_clk:
clk_disable_unprepare(dwc->ref_clk);
disable_bus_clk:
@@ -856,6 +868,8 @@ disable_bus_clk:
static void dwc3_clk_disable(struct dwc3 *dwc)
{
+ clk_disable_unprepare(dwc->pipe_clk);
+ clk_disable_unprepare(dwc->utmi_clk);
clk_disable_unprepare(dwc->susp_clk);
clk_disable_unprepare(dwc->ref_clk);
clk_disable_unprepare(dwc->bus_clk);
@@ -1884,6 +1898,20 @@ static int dwc3_get_clocks(struct dwc3 *
}
}
+ /* specific to Rockchip RK3588 */
+ dwc->utmi_clk = devm_clk_get_optional(dev, "utmi");
+ if (IS_ERR(dwc->utmi_clk)) {
+ return dev_err_probe(dev, PTR_ERR(dwc->utmi_clk),
+ "could not get utmi clock\n");
+ }
+
+ /* specific to Rockchip RK3588 */
+ dwc->pipe_clk = devm_clk_get_optional(dev, "pipe");
+ if (IS_ERR(dwc->pipe_clk)) {
+ return dev_err_probe(dev, PTR_ERR(dwc->pipe_clk),
+ "could not get pipe clock\n");
+ }
+
return 0;
}
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -997,6 +997,8 @@ struct dwc3_scratchpad_array {
* @bus_clk: clock for accessing the registers
* @ref_clk: reference clock
* @susp_clk: clock used when the SS phy is in low power (S3) state
+ * @utmi_clk: clock used for USB2 PHY communication
+ * @pipe_clk: clock used for USB3 PHY communication
* @reset: reset control
* @regs: base address for our registers
* @regs_size: address space size
@@ -1167,6 +1169,8 @@ struct dwc3 {
struct clk *bus_clk;
struct clk *ref_clk;
struct clk *susp_clk;
+ struct clk *utmi_clk;
+ struct clk *pipe_clk;
struct reset_control *reset;