[PATCHv3] C_CAN: Add 32-bit accesses

[mkl@pengutronix.de (Marc Kleine-Budde)]

On 05/06/2014 03:57 PM, Pavel Machek wrote:
> Add helpers for 32-bit accesses and replace open-coded 32-bit access
> with calls to helpers. Minimum changes are done to the pci case, as I
> don't have access to that hardware.

I'll ask David Miller to merge net/master into net-next/master so that I
can apply this patch.

For now, I've applied the patch to can-next testing-c_can
(git://gitorious.org/linux-can/linux-can-next.git testing-c_can)

Can you make other patches based on that tree, please.

> --- a/drivers/net/can/c_can/c_can_pci.c
> +++ b/drivers/net/can/c_can/c_can_pci.c
> @@ -63,6 +63,23 @@ static void c_can_pci_write_reg_aligned_to_32bit(struct c_can_priv *priv,
>  	writew(val, priv->base + 2 * priv->regs[index]);
>  }
>  
> +static u32 c_can_plat_read_reg32(struct c_can_priv *priv, enum reg index)
> +{
> +	u32 val;
> +
> +	val = priv->read_reg(priv, index);
> +	val |= ((u32) priv->read_reg(priv, index + 1)) << 16;
> +
> +	return val;
> +}
> +
> +static void c_can_plat_write_reg32(struct c_can_priv *priv, enum reg index,
> +		u32 val)
> +{
> +	priv->write_reg(priv, index + 1, val>>16);

spaces around >>, I'll fix this while applying.

Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
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