linux-kernel - Re: [PATCH 4/5] at91/USB: USB drivers modifications for at91sam9g10

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Message-ID: <4AB0D325.9080407@atmel.com>
Date:	Wed, 16 Sep 2009 13:59:33 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	David Brownell <david-b@...bell.net>, linux-usb@...r.kernel.org
CC:	Nicolas Ferre <nicolas.ferre@...el.com>, avictor.za@...il.com,
	linux-arm-kernel@...ts.infradead.org, patrice.vilchez@...el.com,
	linux-kernel@...r.kernel.org, Hong Xu <hong.xu@...el.com>
Subject: Re: [PATCH 4/5] at91/USB: USB drivers modifications for at91sam9g10

Hi,

Here is a little "ping" about integration of this patch.

Nicolas Ferre :
> From: Hong Xu <hong.xu@...el.com>
> 
> Modify both host and gadget USB drivers for at91sam9g10.
> This add a clock management equivalent to at91sam9261 on usb drivers.
> It also add the way of handling gadget pull-ups (like the at91sam9261).

I wonder if we can consider its inclusion as at91sam9g10 is now
integrated in mainline.
Do you want me to split this in several pieces for host/gadget split.

Thanks.

> Signed-off-by: Hong Xu <hong.xu@...el.com>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> ---
>  drivers/usb/gadget/at91_udc.c |    6 +++---
>  drivers/usb/host/ohci-at91.c  |   10 +++++-----
>  2 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
> index 0b2bb8f..bfed3d9 100644
> --- a/drivers/usb/gadget/at91_udc.c
> +++ b/drivers/usb/gadget/at91_udc.c
> @@ -892,7 +892,7 @@ static void pullup(struct at91_udc *udc, int is_on)
>  
>  			txvc |= AT91_UDP_TXVC_PUON;
>  			at91_udp_write(udc, AT91_UDP_TXVC, txvc);
> -		} else if (cpu_is_at91sam9261()) {
> +		} else if (cpu_is_at91sam9261() || cpu_is_at91sam9g10()) {
>  			u32	usbpucr;
>  
>  			usbpucr = at91_sys_read(AT91_MATRIX_USBPUCR);
> @@ -910,7 +910,7 @@ static void pullup(struct at91_udc *udc, int is_on)
>  
>  			txvc &= ~AT91_UDP_TXVC_PUON;
>  			at91_udp_write(udc, AT91_UDP_TXVC, txvc);
> -		} else if (cpu_is_at91sam9261()) {
> +		} else if (cpu_is_at91sam9261() || cpu_is_at91sam9g10()) {
>  			u32	usbpucr;
>  
>  			usbpucr = at91_sys_read(AT91_MATRIX_USBPUCR);
> @@ -1692,7 +1692,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
>  		udc->ep[3].maxpacket = 64;
>  		udc->ep[4].maxpacket = 512;
>  		udc->ep[5].maxpacket = 512;
> -	} else if (cpu_is_at91sam9261()) {
> +	} else if (cpu_is_at91sam9261() || cpu_is_at91sam9g10()) {
>  		udc->ep[3].maxpacket = 64;
>  	} else if (cpu_is_at91sam9263()) {
>  		udc->ep[0].maxpacket = 64;
> diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
> index b29b0fe..fb64def 100644
> --- a/drivers/usb/host/ohci-at91.c
> +++ b/drivers/usb/host/ohci-at91.c
> @@ -35,7 +35,7 @@ extern int usb_disabled(void);
>  
>  static void at91_start_clock(void)
>  {
> -	if (cpu_is_at91sam9261())
> +	if (cpu_is_at91sam9261() || cpu_is_at91sam9g10())
>  		clk_enable(hclk);
>  	clk_enable(iclk);
>  	clk_enable(fclk);
> @@ -46,7 +46,7 @@ static void at91_stop_clock(void)
>  {
>  	clk_disable(fclk);
>  	clk_disable(iclk);
> -	if (cpu_is_at91sam9261())
> +	if (cpu_is_at91sam9261() || cpu_is_at91sam9g10())
>  		clk_disable(hclk);
>  	clocked = 0;
>  }
> @@ -142,7 +142,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
>  
>  	iclk = clk_get(&pdev->dev, "ohci_clk");
>  	fclk = clk_get(&pdev->dev, "uhpck");
> -	if (cpu_is_at91sam9261())
> +	if (cpu_is_at91sam9261() || cpu_is_at91sam9g10())
>  		hclk = clk_get(&pdev->dev, "hck0");
>  
>  	at91_start_hc(pdev);
> @@ -156,7 +156,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
>  	/* Error handling */
>  	at91_stop_hc(pdev);
>  
> -	if (cpu_is_at91sam9261())
> +	if (cpu_is_at91sam9261() || cpu_is_at91sam9g10())
>  		clk_put(hclk);
>  	clk_put(fclk);
>  	clk_put(iclk);
> @@ -193,7 +193,7 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd,
>  	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
>  	usb_put_hcd(hcd);
>  
> -	if (cpu_is_at91sam9261())
> +	if (cpu_is_at91sam9261() || cpu_is_at91sam9g10())
>  		clk_put(hclk);
>  	clk_put(fclk);
>  	clk_put(iclk);


-- 
Nicolas Ferre

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