dm: usb: tegra: Remove the port_addr_clear_csc variable

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>

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 9e380c309eeba080c29f89775a7aa34eb602d750..811c3178c9480a04e452267c6f8d5477f920f555 100644 (file)
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -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__);