On 5/30/21 6:53 PM, Sergey Shtylyov wrote: [...] >>> Here are 2 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo. >>> The affected drivers call platform_get_irq() but override its result in case of error >>> which prevents the deferred probing from working. >>> >>> [1/2] i2c: iop3xx: fix deferred probing >>> [2/2] i2c: synquacer: fix deferred probing >> >> Please hold on with this series; I'm gonna add another patch... > > Actually, I'm unsure about drivers/i2c/busses/i2c-pca-platform.c: normally it > uses polling iff the (considered optional) IRQ can't be set up (irq < 0 returned > from platform_get_irq_optional()) then polling mode is used. I started to be tautologcial, should really re-read the msgs before seding... :-) > I have a patch to > propaate -EPROBE_DEFER upstream but I'm not sure what is better : sefer the probe Propagate, of/c. :-) > (and potentially falling permanently iff the kernel wouldn't able to finally set Wasn't. :-) > up the IRQ or to start the I2C driver in the polling mode right away. Does these > doubts even make sense? :-) MBR, Sergey