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dm: usb: tegra: Remove the port_addr_clear_csc variable

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This variable is a bit of a hack. We can obtain the same information from
the normal device config. This will fit better with driver model, where
global variables are best avoided.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Simon Glass 2015-03-25 12:22:45 -06:00
parent aae04d0771
commit 943104f07c
1 changed files with 1 additions and 5 deletions
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6
drivers/usb/host/ehci-tegra.c
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@ -87,8 +87,6 @@ struct fdt_usb {
static struct fdt_usb port[USB_PORTS_MAX]; /* List of valid USB ports */
static unsigned port_count; /* Number of available ports */
/* Port that needs to clear CSC after Port Reset */
static u32 port_addr_clear_csc;
/*
* This table has USB timing parameters for each Oscillator frequency we
@ -206,7 +204,7 @@ static void tegra_ehci_powerup_fixup(struct ehci_ctrl *ctrl,
if (controller->has_hostpc)
*reg |= EHCI_PS_PE;
if (((unsigned long)status_reg & TEGRA_USB_ADDR_MASK) != port_addr_clear_csc)
if (!config->has_legacy_mode)
return;
/* For EHCI_PS_CSC to be cleared in ehci_hcd.c */
if (ehci_readl(status_reg) & EHCI_PS_CSC)
@ -683,8 +681,6 @@ static int fdt_decode_usb(const void *blob, int node, struct fdt_usb *config)
config->enabled = fdtdec_get_is_enabled(blob, node);
config->has_legacy_mode = fdtdec_get_bool(blob, node,
"nvidia,has-legacy-mode");
if (config->has_legacy_mode)
port_addr_clear_csc = (unsigned long)config->reg;
config->periph_id = clock_decode_periph_id(blob, node);
if (config->periph_id == PERIPH_ID_NONE) {
debug("%s: Missing/invalid peripheral ID\n", __func__);