On 05/05/2016 09:52 PM, Javier Martinez Canillas wrote: > Hello Krzysztof, > > On 05/05/2016 08:34 AM, Krzysztof Kozlowski wrote: >> Some USB devices on embedded boards have external power supply which has >> to be reset in certain conditions. Add pwrseq interface for this. >> >> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> >> --- >> drivers/power/pwrseq/pwrseq.c | 44 +++++++++++++++++++++++++++++++++++++++++++ >> include/linux/pwrseq.h | 8 ++++++++ >> 2 files changed, 52 insertions(+) >> >> diff --git a/drivers/power/pwrseq/pwrseq.c b/drivers/power/pwrseq/pwrseq.c >> index 495a19d3c30b..306265f55a10 100644 >> --- a/drivers/power/pwrseq/pwrseq.c >> +++ b/drivers/power/pwrseq/pwrseq.c >> @@ -52,6 +52,43 @@ int mmc_pwrseq_alloc(struct mmc_host *host) >> } >> EXPORT_SYMBOL_GPL(mmc_pwrseq_alloc); >> >> +struct pwrseq *pwrseq_alloc(struct device *dev) >> +{ > > This function is USB specific so better to call it usb_pwrseq_alloc() instead. Indeed it is parsing USB specific bindings so such prefix is needed. > Although, this function has a lot of duplicated code from mmc_pwrseq_alloc() > so I think is better to keep the name generic and factorize the common code. > > I expect other devices are also needing some kind of power seq in the future > so having a single alloc function instead of each for device type makes sense. Yes, this can be cleaned up and unified. > >> + struct device_node *np; >> + struct pwrseq *p, *ret = NULL; >> + >> + np = of_parse_phandle(dev->of_node, "usb-pwrseq", 0); > > I know this is just an RFC but you should really add DT bindings for this. Yep, next step. Best regards, Krzysztof -- 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