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Message-ID: <20240426213923.tyeddub4xszypeju@synopsys.com>
Date: Fri, 26 Apr 2024 21:39:27 +0000
From: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
To: Stephen Rothwell <sfr@...b.auug.org.au>
CC: Greg KH <greg@...ah.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Krishna Kurapati <quic_kriskura@...cinc.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Next Mailing List <linux-next@...r.kernel.org>,
Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Subject: Re: linux-next: manual merge of the usb tree with the usb.current
tree
Hi Stephen,
On Fri, Apr 26, 2024, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the usb tree got a conflict in:
>
> drivers/usb/dwc3/core.c
>
> between commit:
>
> 6d735722063a ("usb: dwc3: core: Prevent phy suspend during init")
>
> from the usb.current tree and commit:
>
> 30a46746ca5a ("usb: dwc3: core: Refactor PHY logic to support Multiport Controller")
>
> from the usb tree.
>
> I fixed it up (I think - see below) and can carry the fix as
> necessary. This is now fixed as far as linux-next is concerned, but any
> non trivial conflicts should be mentioned to your upstream maintainer
> when your tree is submitted for merging. You may also want to consider
> cooperating with the maintainer of the conflicting tree to minimise any
> particularly complex conflicts.
>
> --
> Cheers,
> Stephen Rothwell
>
> diff --cc drivers/usb/dwc3/core.c
> index 100041320e8d,4dc6fc79c6d9..000000000000
> --- a/drivers/usb/dwc3/core.c
> +++ b/drivers/usb/dwc3/core.c
> @@@ -104,27 -105,6 +105,30 @@@ static int dwc3_get_dr_mode(struct dwc
> return 0;
> }
>
> +void dwc3_enable_susphy(struct dwc3 *dwc, bool enable)
> +{
> + u32 reg;
> ++ int i;
> +
> - reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
> - if (enable && !dwc->dis_u3_susphy_quirk)
> - reg |= DWC3_GUSB3PIPECTL_SUSPHY;
> - else
> - reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
> ++ for (i = 0; i < dwc->num_usb3_ports; i++) {
> ++ reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(i));
> ++ if (enable && !dwc->dis_u3_susphy_quirk)
> ++ reg |= DWC3_GUSB3PIPECTL_SUSPHY;
> ++ else
> ++ reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
> ++ dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(i), reg);
> ++ }
> +
> - dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
> -
> - reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
> - if (enable && !dwc->dis_u2_susphy_quirk)
> - reg |= DWC3_GUSB2PHYCFG_SUSPHY;
> - else
> - reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
> -
> - dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
> ++ for (i = 0; i < dwc->num_usb2_ports; i++) {
> ++ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i));
> ++ if (enable && !dwc->dis_u2_susphy_quirk)
> ++ reg |= DWC3_GUSB2PHYCFG_SUSPHY;
> ++ else
> ++ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
> ++ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg);
> ++ }
> +}
> +
> void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode)
> {
> u32 reg;
> @@@ -596,19 -594,14 +618,11 @@@ static int dwc3_core_ulpi_init(struct d
> return ret;
> }
>
> - /**
> - * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core
> - * @dwc: Pointer to our controller context structure
> - *
> - * Returns 0 on success. The USB PHY interfaces are configured but not
> - * initialized. The PHY interfaces and the PHYs get initialized together with
> - * the core in dwc3_core_init.
> - */
> - static int dwc3_phy_setup(struct dwc3 *dwc)
> + static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index)
> {
> - unsigned int hw_mode;
> u32 reg;
>
> - reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
> - hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
> -
> + reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(index));
>
> /*
> * Make sure UX_EXIT_PX is cleared as that causes issues with some
Thanks for reporting. There's a slight adjustment to remove hw_mode that
was missed for dwc3_hs_phy_setup(). It should look more like this:
diff --cc drivers/usb/dwc3/core.c
index edb0a6aa1f9f,4dc6fc79c6d9..000000000000
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@@ -105,27 -105,6 +105,32 @@@ static int dwc3_get_dr_mode(struct dwc
return 0;
}
+void dwc3_enable_susphy(struct dwc3 *dwc, bool enable)
+{
+ u32 reg;
++ int i;
+
- reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
- if (enable && !dwc->dis_u3_susphy_quirk)
- reg |= DWC3_GUSB3PIPECTL_SUSPHY;
- else
- reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
++ for (i = 0; i < dwc->num_usb3_ports; i++) {
++ reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(i));
++ if (enable && !dwc->dis_u3_susphy_quirk)
++ reg |= DWC3_GUSB3PIPECTL_SUSPHY;
++ else
++ reg &= ~DWC3_GUSB3PIPECTL_SUSPHY;
+
- dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
++ dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(i), reg);
++ }
+
- reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
- if (enable && !dwc->dis_u2_susphy_quirk)
- reg |= DWC3_GUSB2PHYCFG_SUSPHY;
- else
- reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
++ for (i = 0; i < dwc->num_usb2_ports; i++) {
++ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(i));
++ if (enable && !dwc->dis_u2_susphy_quirk)
++ reg |= DWC3_GUSB2PHYCFG_SUSPHY;
++ else
++ reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+
- dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
++ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(i), reg);
++ }
+}
+
void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode)
{
u32 reg;
@@@ -610,19 -594,14 +620,11 @@@ static int dwc3_core_ulpi_init(struct d
return ret;
}
- /**
- * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core
- * @dwc: Pointer to our controller context structure
- *
- * Returns 0 on success. The USB PHY interfaces are configured but not
- * initialized. The PHY interfaces and the PHYs get initialized together with
- * the core in dwc3_core_init.
- */
- static int dwc3_phy_setup(struct dwc3 *dwc)
+ static int dwc3_ss_phy_setup(struct dwc3 *dwc, int index)
{
- unsigned int hw_mode;
u32 reg;
- reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
- hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
-
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(index));
/*
* Make sure UX_EXIT_PX is cleared as that causes issues with some
@@@ -669,9 -653,22 +671,16 @@@
if (dwc->dis_del_phy_power_chg_quirk)
reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE;
- dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
+ dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(index), reg);
- reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+ return 0;
+ }
+
+ static int dwc3_hs_phy_setup(struct dwc3 *dwc, int index)
+ {
- unsigned int hw_mode;
+ u32 reg;
+
- hw_mode = DWC3_GHWPARAMS0_MODE(dwc->hwparams.hwparams0);
-
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(index));
/* Select the HS PHY interface */
switch (DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3)) {
--
Thanks,
Thinh
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