Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
Hello ChenYu On Fri, Nov 11, 2016 at 12:01 AM, Chen-Yu Tsaiwrote: > On Fri, Nov 11, 2016 at 5:42 AM, Rob Herring wrote: [snip] >> >> Do you have patches using this already. If not, it is starting to get >> a bit late for v4.10. >> >> I can apply this, but then you'll just be pulling in other DT patches. > > Not sure what you mean by "using" this... > > I have patches which use this to add DT-based modalias entries for > module auto-loading to i2c and sunxi-rsb that I haven't sent. > Unfortunately the I2C core can't be changed without breaking a lot of I2C drivers that are relying on the current behavior. I've already posted a RFC patch [0] for I2C that does this about a year ago and enumerated the issues that have to be addressed before the change can be made (and fixed some of the issues mentioned) on this series [1]. Another issue is that an I2C device ID table is a requirement anyways since I2C drivers expect an i2c_device_id as an argument of their probe function. Kieran already have patches [2] to change that which should land soon. I plan to fix the remaining I2C drivers once his patches are merged and re-post the RFC patch as a proper one. > As far as DT usage goes, we already need this for the axp20x mfd driver. > There are 2 variants, i2c and sunxi-rsb. For the I2C variant a fix was > sent to fix module auto-loading by using the I2C client ID table: > > mfd: axp20x-i2c: Add i2c-ids to fix module auto-loading > > https://git.kernel.org/cgit/linux/kernel/git/lee/mfd.git/commit/?h=for-mfd-next=b7142a19321484bd7681aa547c1d50148c8e2825 > Yes, this is the workaround used by most DT-only I2C drivers. The only reason that these drivers have an I2C device ID is due the restrictions imposed by the I2C core. Best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
On Fri, Nov 11, 2016 at 5:42 AM, Rob Herringwrote: > On Sun, Nov 6, 2016 at 7:56 PM, Chen-Yu Tsai wrote: >> On Mon, Nov 7, 2016 at 9:29 AM, Peter Chen wrote: >>> On Fri, Nov 04, 2016 at 01:51:34PM -0700, Stephen Boyd wrote: Quoting Peter Chen (2016-10-24 18:16:32) > On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote: > > Quoting Chen-Yu Tsai (2016-10-24 05:19:05) > > > Hi, > > > > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd > > > wrote: > > > > The ULPI bus can be built as a module, and it will soon be > > > > calling these functions when it supports probing devices from DT. > > > > Export them so they can be used by the ULPI module. > > > > > > > > Acked-by: Rob Herring > > > > Cc: > > > > Signed-off-by: Stephen Boyd > > > > --- > > > > drivers/of/device.c | 2 ++ > > > > 1 file changed, 2 insertions(+) > > > > > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c > > > > index 8a22a253a830..6719ab35b62e 100644 > > > > --- a/drivers/of/device.c > > > > +++ b/drivers/of/device.c > > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device > > > > *dev, char *str, ssize_t len) > > > > > > > > return tsize; > > > > } > > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias); > > > > > > > > int of_device_request_module(struct device *dev) > > > > { > > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, > > > > struct kobj_uevent_env *env) > > > > } > > > > mutex_unlock(_mutex); > > > > } > > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); > > > > > > This is trailing the wrong function. > > > > > > > Good catch. Must have been some bad rebase. > > > > Peter, can you fix it while applying or should I resend this patch? > > > > But, this is device tree patch. I can only get chipidea part and other > USB patches if Greg agrees. > Were you expecting Rob to take the drivers/of/* patches? Sorry I thought Rob acked them so they could go through usb with the other changes. >>> >>> I am just worried about possible merge error when linus pulls both OF >>> and USB tree. Greg, is it ok the OF patches through USB tree with OF >>> maintainer's ack? >> >> May I suggest putting the OF patches on an immutable branch so other >> subsystems can pull them in without pulling in the USB patches? At >> least I want to use them in the I2C subsystem, and in the sunxi-rsb >> driver. > > Do you have patches using this already. If not, it is starting to get > a bit late for v4.10. > > I can apply this, but then you'll just be pulling in other DT patches. Not sure what you mean by "using" this... I have patches which use this to add DT-based modalias entries for module auto-loading to i2c and sunxi-rsb that I haven't sent. As far as DT usage goes, we already need this for the axp20x mfd driver. There are 2 variants, i2c and sunxi-rsb. For the I2C variant a fix was sent to fix module auto-loading by using the I2C client ID table: mfd: axp20x-i2c: Add i2c-ids to fix module auto-loading https://git.kernel.org/cgit/linux/kernel/git/lee/mfd.git/commit/?h=for-mfd-next=b7142a19321484bd7681aa547c1d50148c8e2825 But for the sunxi-rsb variant such a fix does not exist, as the bus does not have a separate ID table. It uses DT exclusively. Regards ChenYu -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
On Sun, Nov 6, 2016 at 7:56 PM, Chen-Yu Tsaiwrote: > On Mon, Nov 7, 2016 at 9:29 AM, Peter Chen wrote: >> On Fri, Nov 04, 2016 at 01:51:34PM -0700, Stephen Boyd wrote: >>> Quoting Peter Chen (2016-10-24 18:16:32) >>> > On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote: >>> > > Quoting Chen-Yu Tsai (2016-10-24 05:19:05) >>> > > > Hi, >>> > > > >>> > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd >>> > > > wrote: >>> > > > > The ULPI bus can be built as a module, and it will soon be >>> > > > > calling these functions when it supports probing devices from DT. >>> > > > > Export them so they can be used by the ULPI module. >>> > > > > >>> > > > > Acked-by: Rob Herring >>> > > > > Cc: >>> > > > > Signed-off-by: Stephen Boyd >>> > > > > --- >>> > > > > drivers/of/device.c | 2 ++ >>> > > > > 1 file changed, 2 insertions(+) >>> > > > > >>> > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c >>> > > > > index 8a22a253a830..6719ab35b62e 100644 >>> > > > > --- a/drivers/of/device.c >>> > > > > +++ b/drivers/of/device.c >>> > > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device >>> > > > > *dev, char *str, ssize_t len) >>> > > > > >>> > > > > return tsize; >>> > > > > } >>> > > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias); >>> > > > > >>> > > > > int of_device_request_module(struct device *dev) >>> > > > > { >>> > > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, >>> > > > > struct kobj_uevent_env *env) >>> > > > > } >>> > > > > mutex_unlock(_mutex); >>> > > > > } >>> > > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); >>> > > > >>> > > > This is trailing the wrong function. >>> > > > >>> > > >>> > > Good catch. Must have been some bad rebase. >>> > > >>> > > Peter, can you fix it while applying or should I resend this patch? >>> > > >>> > >>> > But, this is device tree patch. I can only get chipidea part and other >>> > USB patches if Greg agrees. >>> > >>> >>> Were you expecting Rob to take the drivers/of/* patches? Sorry I thought >>> Rob acked them so they could go through usb with the other changes. >> >> I am just worried about possible merge error when linus pulls both OF >> and USB tree. Greg, is it ok the OF patches through USB tree with OF >> maintainer's ack? > > May I suggest putting the OF patches on an immutable branch so other > subsystems can pull them in without pulling in the USB patches? At > least I want to use them in the I2C subsystem, and in the sunxi-rsb > driver. Do you have patches using this already. If not, it is starting to get a bit late for v4.10. I can apply this, but then you'll just be pulling in other DT patches. Rob -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
On Mon, Nov 7, 2016 at 9:29 AM, Peter Chenwrote: > On Fri, Nov 04, 2016 at 01:51:34PM -0700, Stephen Boyd wrote: >> Quoting Peter Chen (2016-10-24 18:16:32) >> > On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote: >> > > Quoting Chen-Yu Tsai (2016-10-24 05:19:05) >> > > > Hi, >> > > > >> > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd >> > > > wrote: >> > > > > The ULPI bus can be built as a module, and it will soon be >> > > > > calling these functions when it supports probing devices from DT. >> > > > > Export them so they can be used by the ULPI module. >> > > > > >> > > > > Acked-by: Rob Herring >> > > > > Cc: >> > > > > Signed-off-by: Stephen Boyd >> > > > > --- >> > > > > drivers/of/device.c | 2 ++ >> > > > > 1 file changed, 2 insertions(+) >> > > > > >> > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c >> > > > > index 8a22a253a830..6719ab35b62e 100644 >> > > > > --- a/drivers/of/device.c >> > > > > +++ b/drivers/of/device.c >> > > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device >> > > > > *dev, char *str, ssize_t len) >> > > > > >> > > > > return tsize; >> > > > > } >> > > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias); >> > > > > >> > > > > int of_device_request_module(struct device *dev) >> > > > > { >> > > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, struct >> > > > > kobj_uevent_env *env) >> > > > > } >> > > > > mutex_unlock(_mutex); >> > > > > } >> > > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); >> > > > >> > > > This is trailing the wrong function. >> > > > >> > > >> > > Good catch. Must have been some bad rebase. >> > > >> > > Peter, can you fix it while applying or should I resend this patch? >> > > >> > >> > But, this is device tree patch. I can only get chipidea part and other >> > USB patches if Greg agrees. >> > >> >> Were you expecting Rob to take the drivers/of/* patches? Sorry I thought >> Rob acked them so they could go through usb with the other changes. > > I am just worried about possible merge error when linus pulls both OF > and USB tree. Greg, is it ok the OF patches through USB tree with OF > maintainer's ack? May I suggest putting the OF patches on an immutable branch so other subsystems can pull them in without pulling in the USB patches? At least I want to use them in the I2C subsystem, and in the sunxi-rsb driver. Regards ChenYu -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
On Fri, Nov 04, 2016 at 01:51:34PM -0700, Stephen Boyd wrote: > Quoting Peter Chen (2016-10-24 18:16:32) > > On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote: > > > Quoting Chen-Yu Tsai (2016-10-24 05:19:05) > > > > Hi, > > > > > > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd> > > > wrote: > > > > > The ULPI bus can be built as a module, and it will soon be > > > > > calling these functions when it supports probing devices from DT. > > > > > Export them so they can be used by the ULPI module. > > > > > > > > > > Acked-by: Rob Herring > > > > > Cc: > > > > > Signed-off-by: Stephen Boyd > > > > > --- > > > > > drivers/of/device.c | 2 ++ > > > > > 1 file changed, 2 insertions(+) > > > > > > > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c > > > > > index 8a22a253a830..6719ab35b62e 100644 > > > > > --- a/drivers/of/device.c > > > > > +++ b/drivers/of/device.c > > > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device > > > > > *dev, char *str, ssize_t len) > > > > > > > > > > return tsize; > > > > > } > > > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias); > > > > > > > > > > int of_device_request_module(struct device *dev) > > > > > { > > > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, struct > > > > > kobj_uevent_env *env) > > > > > } > > > > > mutex_unlock(_mutex); > > > > > } > > > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); > > > > > > > > This is trailing the wrong function. > > > > > > > > > > Good catch. Must have been some bad rebase. > > > > > > Peter, can you fix it while applying or should I resend this patch? > > > > > > > But, this is device tree patch. I can only get chipidea part and other > > USB patches if Greg agrees. > > > > Were you expecting Rob to take the drivers/of/* patches? Sorry I thought > Rob acked them so they could go through usb with the other changes. I am just worried about possible merge error when linus pulls both OF and USB tree. Greg, is it ok the OF patches through USB tree with OF maintainer's ack? -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
Quoting Peter Chen (2016-10-24 18:16:32) > On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote: > > Quoting Chen-Yu Tsai (2016-10-24 05:19:05) > > > Hi, > > > > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd> > > wrote: > > > > The ULPI bus can be built as a module, and it will soon be > > > > calling these functions when it supports probing devices from DT. > > > > Export them so they can be used by the ULPI module. > > > > > > > > Acked-by: Rob Herring > > > > Cc: > > > > Signed-off-by: Stephen Boyd > > > > --- > > > > drivers/of/device.c | 2 ++ > > > > 1 file changed, 2 insertions(+) > > > > > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c > > > > index 8a22a253a830..6719ab35b62e 100644 > > > > --- a/drivers/of/device.c > > > > +++ b/drivers/of/device.c > > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device *dev, > > > > char *str, ssize_t len) > > > > > > > > return tsize; > > > > } > > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias); > > > > > > > > int of_device_request_module(struct device *dev) > > > > { > > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, struct > > > > kobj_uevent_env *env) > > > > } > > > > mutex_unlock(_mutex); > > > > } > > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); > > > > > > This is trailing the wrong function. > > > > > > > Good catch. Must have been some bad rebase. > > > > Peter, can you fix it while applying or should I resend this patch? > > > > But, this is device tree patch. I can only get chipidea part and other > USB patches if Greg agrees. > Were you expecting Rob to take the drivers/of/* patches? Sorry I thought Rob acked them so they could go through usb with the other changes. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
On Mon, Oct 24, 2016 at 12:48:24PM -0700, Stephen Boyd wrote: > Quoting Chen-Yu Tsai (2016-10-24 05:19:05) > > Hi, > > > > On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boyd> > wrote: > > > The ULPI bus can be built as a module, and it will soon be > > > calling these functions when it supports probing devices from DT. > > > Export them so they can be used by the ULPI module. > > > > > > Acked-by: Rob Herring > > > Cc: > > > Signed-off-by: Stephen Boyd > > > --- > > > drivers/of/device.c | 2 ++ > > > 1 file changed, 2 insertions(+) > > > > > > diff --git a/drivers/of/device.c b/drivers/of/device.c > > > index 8a22a253a830..6719ab35b62e 100644 > > > --- a/drivers/of/device.c > > > +++ b/drivers/of/device.c > > > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device *dev, > > > char *str, ssize_t len) > > > > > > return tsize; > > > } > > > +EXPORT_SYMBOL_GPL(of_device_get_modalias); > > > > > > int of_device_request_module(struct device *dev) > > > { > > > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, struct > > > kobj_uevent_env *env) > > > } > > > mutex_unlock(_mutex); > > > } > > > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); > > > > This is trailing the wrong function. > > > > Good catch. Must have been some bad rebase. > > Peter, can you fix it while applying or should I resend this patch? > But, this is device tree patch. I can only get chipidea part and other USB patches if Greg agrees. -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
Hi, On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boydwrote: > The ULPI bus can be built as a module, and it will soon be > calling these functions when it supports probing devices from DT. > Export them so they can be used by the ULPI module. > > Acked-by: Rob Herring > Cc: > Signed-off-by: Stephen Boyd > --- > drivers/of/device.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/of/device.c b/drivers/of/device.c > index 8a22a253a830..6719ab35b62e 100644 > --- a/drivers/of/device.c > +++ b/drivers/of/device.c > @@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct device *dev, char > *str, ssize_t len) > > return tsize; > } > +EXPORT_SYMBOL_GPL(of_device_get_modalias); > > int of_device_request_module(struct device *dev) > { > @@ -290,6 +291,7 @@ void of_device_uevent(struct device *dev, struct > kobj_uevent_env *env) > } > mutex_unlock(_mutex); > } > +EXPORT_SYMBOL_GPL(of_device_uevent_modalias); This is trailing the wrong function. ChenYu > > int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env > *env) > { > -- > 2.10.0.297.gf6727b0 > > > ___ > linux-arm-kernel mailing list > linux-arm-ker...@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v5 02/23] of: device: Export of_device_{get_modalias, uvent_modalias} to modules
On Tue, Oct 18, 2016 at 9:56 AM, Stephen Boydwrote: > The ULPI bus can be built as a module, and it will soon be > calling these functions when it supports probing devices from DT. > Export them so they can be used by the ULPI module. > > Acked-by: Rob Herring > Cc: > Signed-off-by: Stephen Boyd I'm interested in this as well. The sunxi-rsb bus is non-enumerable and DT only, and existing slave device drivers can be built as modules. We'd need this to support modalias loading of drivers. ChenYu -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html