Hi Takahiro, On Sun, 10 Oct 2021 at 19:43, AKASHI Takahiro <takahiro.aka...@linaro.org> wrote: > > On Sun, Oct 10, 2021 at 08:14:13AM -0600, Simon Glass wrote: > > On Thu, 30 Sept 2021 at 23:03, AKASHI Takahiro > > <takahiro.aka...@linaro.org> wrote: > > > > > > Every time an ide bus/port is scanned and a new device is detected, > > > we want to call device_probe() as it will give us a chance to run > > > additional > > > post-processings for some purposes. > > > > > > In particular, support for creating partitions on a device will be added. > > > > > > Signed-off-by: AKASHI Takahiro <takahiro.aka...@linaro.org> > > > --- > > > drivers/block/ide.c | 6 ++++++ > > > 1 file changed, 6 insertions(+) > > > > > > > Reviewed-by: Simon Glass <s...@chromium.org> > > > > I'm starting to wonder if you can create a function that does the > > probe and unbind? Something in the blk interface, perhaps? It would > > reduce the duplicated code and provide a standard way of bringing up a > > new device. > > That is exactly what Ilias suggested but I'm a bit declined to do :) > > Common 'scanning' code looks like: > blk_create_devicef(... , &dev); > desc = dev_get_uclass_data(dev); > initialize some members in desc as well as device-specific info --- (A) > (now dev can be accessible.) > ret = device_probe(dev); > if (ret) { > de-initialize *dev* --- (B) > device_unbind() > } > > Basically (B) is supposed to undo (A) which may or may not exist, > depending on types of block devices. > > So I'm not 100% sure that a combination of device_probe() and device_unbind() > will fit to all the device types. > (The only cases that I have noticed are fsl_sata.c and sata_sil.c. Both > have their own xxx_unbind_device(), but they simply call device_remove() and > device_unbind(), though. So no worry?)
Yes I agree it would be a very strange function. But at least it would have the benefit of grouping the code together under a particular name, something like blk_back_out_bind(), but that's not a good name....it just feels like this might get refactored in the future and having the code in one place might be handy. Regards, Simon