Hi Carlos,
After review, I do not have many comments on the interface, as we already
aligned on most of it.
Please see my comments inlined below.
On Friday 07 May 2010 17:18:31 Carlos Chinea wrote:
[strip]
> diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h
[strip]
> +/**
> + * hsi_start_tx - Signal the port that the client wants to start a TX
> + * @cl: Pointer to the HSI client
> + *
> + * Return -errno on failure, 0 on success
> + */
> +static inline int hsi_start_tx(struct hsi_client *cl)
> +{
> + if (!hsi_port_claimed(cl))
> + return -EACCES;
> + return hsi_get_port(cl)->start_tx(cl);
> +}
> +
> +/**
> + * hsi_stop_tx - Signal the port that the client no longer wants to
> transmit + * @cl: Pointer to the HSI client
> + *
> + * Return -errno on failure, 0 on success
> + */
> +static inline int hsi_stop_tx(struct hsi_client *cl)
> +{
> + if (!hsi_port_claimed(cl))
> + return -EACCES;
> + return hsi_get_port(cl)->stop_tx(cl);
> +}
As I can see, these two I/F functions are the way an HSI protocol layer can
play with Tx_wake lines if it has to, right?
I suppose it allows more flexibility with regards to 3/4 wires HSI flavors
management and avoids additional callbacks to Tx_wake related events?
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