Re: USB-related build errors on Tegra in next-20130319

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Hi,

On Tue, Mar 19, 2013 at 10:29:05AM -0600, Stephen Warren wrote:
> I see the following Kconfig warnings in next-20130319:
> 
> > warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI which has unmet direct dependencies (USB_SUPPORT && USB_PHY && ARM)
> > warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI_VIEWPORT which has unmet direct dependencies (USB_SUPPORT && USB_PHY && USB_ULPI)
> > include/config/auto.conf:624:warning: override: ARCH_MULTIPLATFORM changes choice state
> > warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI which has unmet direct dependencies (USB_SUPPORT && USB_PHY && ARM)
> > warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects USB_ULPI_VIEWPORT which has unmet direct dependencies (USB_SUPPORT && USB_PHY && USB_ULPI)
> 
> Which I believe are the cause of the following build errors:
> 
> > drivers/built-in.o: In function `controller_resume':
> > drivers/usb/host/ehci-tegra.c:556: undefined reference to `tegra_usb_phy_preresume'
> > drivers/usb/host/ehci-tegra.c:479: undefined reference to `tegra_ehci_phy_restore_start'
> > drivers/usb/host/ehci-tegra.c:551: undefined reference to `tegra_ehci_phy_restore_end'
> > drivers/usb/host/ehci-tegra.c:546: undefined reference to `tegra_ehci_phy_restore_end'
> > drivers/built-in.o: In function `tegra_ehci_probe':
> > drivers/usb/host/ehci-tegra.c:734: undefined reference to `tegra_usb_phy_open'
> > drivers/built-in.o: In function `tegra_ehci_hub_control':
> > drivers/usb/host/ehci-tegra.c:162: undefined reference to `tegra_usb_phy_postresume'
> > drivers/usb/host/ehci-tegra.c:215: undefined reference to `tegra_usb_phy_preresume'
> > make: *** [vmlinux] Error 1
> 
> I pointed out at least the Kconfig problems when you posted the PHY
> error handling cleanup series, so I'm not sure why those patches were
> applied.

Because tegra EHCI shouldn't be selecting the PHY and you didn't even
have a proper PHY driver. Try patch below:

From cc705d4038f6adc24dc0d2ad9a1b28a798fafb95 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@xxxxxx>
Date: Wed, 20 Mar 2013 14:18:28 +0200
Subject: [PATCH] arm: tegra: fix Kconfig select clauses

USB_ULPI and USB_ULPI_VIEWPORT shouldn't really
be selected directly by anyone, but since Tegra
still needs some time before turning ulpi viewport
into a proper PHY driver, we need to keep the
selects in place.

This patch just fixes the conditional select
so that it will continue to build after merging
the latest PHY layer changes.

Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
 arch/arm/mach-tegra/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index d1c4893..dbc653e 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -18,8 +18,8 @@ config ARCH_TEGRA_2x_SOC
 	select PL310_ERRATA_727915 if CACHE_L2X0
 	select PL310_ERRATA_769419 if CACHE_L2X0
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
-	select USB_ULPI if USB
-	select USB_ULPI_VIEWPORT if USB_SUPPORT
+	select USB_ULPI if USB_PHY
+	select USB_ULPI_VIEWPORT if USB_PHY
 	help
 	  Support for NVIDIA Tegra AP20 and T20 processors, based on the
 	  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
@@ -37,8 +37,8 @@ config ARCH_TEGRA_3x_SOC
 	select PINCTRL_TEGRA30
 	select PL310_ERRATA_769419 if CACHE_L2X0
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
-	select USB_ULPI if USB
-	select USB_ULPI_VIEWPORT if USB_SUPPORT
+	select USB_ULPI if USB_PHY
+	select USB_ULPI_VIEWPORT if USB_PHY
 	help
 	  Support for NVIDIA Tegra T30 processor family, based on the
 	  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
-- 
1.8.2

-- 
balbi

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