Hello,
On Wed, Feb 19, 2014 at 01:01:43PM +0100, Hans de Goede wrote:
> diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
> index 2289efd..2c04211 100644
> --- a/drivers/ata/ahci.h
> +++ b/drivers/ata/ahci.h
> @@ -323,6 +323,8 @@ struct ahci_host_priv {
> u32 em_msg_type; /* EM message type */
> struct clk *clk; /* Only for platforms
> supporting clk */
> void *plat_data; /* Other platform data */
> + /* Optional ahci_start_engine override */
> + void (*start_engine)(struct ata_port *ap);
Can you please add that this gets initialized to the default during
save_initial_config and can be overridden anytime before the host is
activated?
> @@ -500,6 +501,9 @@ void ahci_save_initial_config(struct device *dev,
> hpriv->cap = cap;
> hpriv->cap2 = cap2;
> hpriv->port_map = port_map;
> +
> + if (!hpriv->start_engine)
> + hpriv->start_engine = ahci_start_engine;
Please update the function comment accordingly.
> -void ahci_start_engine(struct ata_port *ap)
> +static void ahci_start_engine(struct ata_port *ap)
> {
> void __iomem *port_mmio = ahci_port_base(ap);
> u32 tmp;
> @@ -576,7 +580,6 @@ void ahci_start_engine(struct ata_port *ap)
> writel(tmp, port_mmio + PORT_CMD);
> readl(port_mmio + PORT_CMD); /* flush */
> }
> -EXPORT_SYMBOL_GPL(ahci_start_engine);
Why are we making ahci_start_engine() static? Wouldn't there likely
be users who would do more things before or after ahci_start_engine()?
Also, why is there no explanation of this change in the patch
description?
Thanks.
--
tejun
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