From mboxrd@z Thu Jan  1 00:00:00 1970
From: Simon Glass <sjg@chromium.org>
Date: Tue, 7 Apr 2015 13:10:43 -0600
Subject: [U-Boot] [PATCH v2 57/80] dm: usb: tegra: Remove the
 port_addr_clear_csc variable
In-Reply-To: <5513CAE7.1020103@nvidia.com>
References: <1427307788-7496-1-git-send-email-sjg@chromium.org>
 <1427307788-7496-58-git-send-email-sjg@chromium.org>
 <17d74078e679442ab7f56f08620b5ac7@HKMAIL103.nvidia.com>
 <5513CAE7.1020103@nvidia.com>
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On 26 March 2015 at 03:01, Jim Lin <jilin@nvidia.com> wrote:
> Please ignore my question because it is answered by [PATCH v2 34/80].
>
>
> On 03/26/2015 11:38 AM, Jim Lin wrote:
>>>
>>> -----Original Message-----
>>> From: U-Boot [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Simon
>>> Glass
>>> Sent: Thursday, March 26, 2015 2:23 AM
>>> To: U-Boot Mailing List
>>> Cc: Marek Vasut; Stephen Warren; Vivek Gautam; Tom Warren
>>> Subject: [U-Boot] [PATCH v2 57/80] 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>
>>> ---
>>>
>>> Changes in v2: None
>>>
>>>   drivers/usb/host/ehci-tegra.c | 6 +-----
>>>   1 file changed, 1 insertion(+), 5 deletions(-)
>>>
>>> diff --git a/drivers/usb/host/ehci-tegra.c
>>> b/drivers/usb/host/ehci-tegra.c index 38333c7..464f55d 100644
>>> --- 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 (((u32)status_reg & TEGRA_USB_ADDR_MASK) !=
>>> port_addr_clear_csc)
>>> +       if (!config->has_legacy_mode)
>>>                 return;
>>
>> How do we get config (config->has_legacy_mode) for in this function?
>> If you read ehci_set_usbmode, "config"  comes from
>> "config = &port[index];".
>> Or "config" is an input argument like set_up_vbus(struct fdt_usb *config,
>> ...)
>> But for ehci_powerup_fixup, I don't see a way for us to get "config".
>>
>>>         /* For EHCI_PS_CSC to be cleared in ehci_hcd.c */
>>
>> --nvpublic
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
>
>

Applied to u-boot-dm/next.