On 01/27/2014 12:51 PM, Hans de Goede wrote: > Hi, > > On 01/27/2014 11:39 AM, Roger Quadros wrote: >> Hi, >> >> On 01/22/2014 09:04 PM, Hans de Goede wrote: > > <snip> > >>> --- a/include/linux/ahci_platform.h >>> +++ b/include/linux/ahci_platform.h >>> @@ -20,7 +20,13 @@ >>> struct device; >>> struct ata_port_info; >>> struct ahci_host_priv; >>> +struct platform_device; >>> >>> +/* >>> + * Note ahci_platform_data is deprecated. New drivers which need to override >>> + * any of these, should instead declare there own platform_driver struct, and >>> + * use ahci_platform* functions in their own probe, suspend and resume methods. >>> + */ >>> struct ahci_platform_data { >>> int (*init)(struct device *dev, struct ahci_host_priv *hpriv); >>> void (*exit)(struct device *dev); >>> @@ -35,5 +41,13 @@ int ahci_platform_enable_clks(struct ahci_host_priv *hpriv); >>> void ahci_platform_disable_clks(struct ahci_host_priv *hpriv); >>> int ahci_platform_enable_resources(struct ahci_host_priv *hpriv); >>> void ahci_platform_disable_resources(struct ahci_host_priv *hpriv); >>> +struct ahci_host_priv *ahci_platform_get_resources( >>> + struct platform_device *pdev); >> >> Why not use 'struct device' as the argument? > > Because of calls to platform_get_resource inside the function. > >>> +void ahci_platform_put_resources(struct ahci_host_priv *hpriv); >> >> Can we have 'struct device' as the argument? Else it becomes >> impossible to get 'struct device' from 'hpriv' if we need to call e.g. >> pm_runtime_*() APIs. > > The plan for is for this function to go away once we have a > devm version of of_clk_get, so if you need to put pm_runtime_calls > somewhere, please don't put them here. This sounds like something which > should go in enable / disable resources instead ? OK. I need to add pm_runtime_enable() + pm_runtime_get_sync() during initialization and pm_runtime_put_sync() + pm_runtime_disable() during cleanup. If ahci_platform_enable/disable_resources is the right place then we must be able to access struct device from there. Is it a good to add 'struct device *dev' into the 'struct ahci_host_priv'? Then you can leave this series as is and i'll add a new patch for that. If there is a better way, please let me know. cheers, -roger -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html