target/linux/brcm63xx/patches-4.9/101-MIPS-BCM63XX-add-USB-device-clock-enable-delay-to-cl.patch

   1 From 8e9bf528a122741f0171b89c297b63041116d704 Mon Sep 17 00:00:00 2001
   2 From: Florian Fainelli <florian@openwrt.org>
   3 Date: Mon, 28 Jan 2013 20:06:20 +0100
   4 Subject: [PATCH 02/11] MIPS: BCM63XX: add USB device clock enable delay to
   5  clock code
   6
   7 This patch adds the required 10 micro seconds delay to the USB device
   8 clock enable operation. Put this where the correct clock knowledege is,
   9 which is in the clock code, and remove this delay from the bcm63xx_udc
  10 gadget driver where it was before.
  11
  12 Signed-off-by: Florian Fainelli <florian@openwrt.org>
  13 ---
  14  arch/mips/bcm63xx/clk.c          |    5 +++++
  15  drivers/usb/gadget/bcm63xx_udc.c |    1 -
  16  2 files changed, 5 insertions(+), 1 deletion(-)
  17
  18 --- a/arch/mips/bcm63xx/clk.c
  19 +++ b/arch/mips/bcm63xx/clk.c
  20 @@ -235,6 +235,11 @@ static void usbd_set(struct clk *clk, in
  21                 bcm_hwclock_set(CKCTL_6362_USBD_EN, enable);
  22         else if (BCMCPU_IS_6368())
  23                 bcm_hwclock_set(CKCTL_6368_USBD_EN, enable);
  24 +       else
  25 +               return;
  26 +
  27 +       if (enable)
  28 +               udelay(10);
  29  }
  30
  31  static struct clk clk_usbd = {
  32 --- a/drivers/usb/gadget/udc/bcm63xx_udc.c
  33 +++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
  34 @@ -410,7 +410,6 @@ static inline void set_clocks(struct bcm
  35         if (is_enabled) {
  36                 clk_enable(udc->usbh_clk);
  37                 clk_enable(udc->usbd_clk);
  38 -               udelay(10);
  39         } else {
  40                 clk_disable(udc->usbd_clk);
  41                 clk_disable(udc->usbh_clk);