On Tue, Jan 19, 2021 at 06:36:31PM +0200, Laurent Pinchart wrote: > On Tue, Jan 19, 2021 at 11:33:58AM +0200, Andy Shevchenko wrote: > > On Tue, Jan 19, 2021 at 12:11:40AM +0000, Daniel Scally wrote: > > > On 18/01/2021 21:19, Daniel Scally wrote: ... > > See my previous reply. TL;DR: you have to modify clk-gpio.c to export couple of > > methods to be able to use it as a library. > > That seems really overkill given the very simple implementation of the > clock provided here. Less code in the end is called an overkill? Hmm... I think since we in Linux it's better to utilize what it provides. Do you want me to prepare a patch to show that there is no overkill at all? ... > > > (also, Laurent, if we did it this way we wouldn't be able to also handle > > > the led-indicator GPIO here without some fairly major rework) > > > > LED indicators are done as LED class devices (see plenty of examples in PDx86 > > drivers: drivers/platform/x86/) > > How do you expose the link between the sensor and its indicator LED to > userspace ? Isn't it better to handle it in the kernel to avoid rogue > userspace turning the camera on without notifying the user ? I didn't get this. It's completely a LED handling driver business. We may expose it to user space or not, but it's orthogonal to the usage of LED class IIUC. Am I mistaken here? -- With Best Regards, Andy Shevchenko
