Re: [PATCH 4/4] net: dsa: microchip: avoid hard-codded port count

From: Andrew Lunn
Date: Tue Aug 27 2019 - 08:55:10 EST


On Tue, Aug 27, 2019 at 12:31:10PM +0300, Razvan Stefanescu wrote:
> Use port_cnt value to disable interrupts on switch reset.
>
> Signed-off-by: Razvan Stefanescu <razvan.stefanescu@xxxxxxxxxxxxx>
> ---
> drivers/net/dsa/microchip/ksz9477.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
> index 187be42de5f1..54fc05595d48 100644
> --- a/drivers/net/dsa/microchip/ksz9477.c
> +++ b/drivers/net/dsa/microchip/ksz9477.c
> @@ -213,7 +213,7 @@ static int ksz9477_reset_switch(struct ksz_device *dev)
>
> /* disable interrupts */
> ksz_write32(dev, REG_SW_INT_MASK__4, SWITCH_INT_MASK);
> - ksz_write32(dev, REG_SW_PORT_INT_MASK__4, 0x7F);
> + ksz_write32(dev, REG_SW_PORT_INT_MASK__4, dev->port_cnt);
> ksz_read32(dev, REG_SW_PORT_INT_STATUS__4, &data32);

Humm, is this correct? 0x7f suggests this is a bitmap for 7 ports.
The name port_cnt suggests it is a count, e.g. 7 for 7 ports.

0x7f != 7.

Thanks
Andrew