On Tue, 12 Oct 2010, Amit Kucheria wrote: > Adding linaro-dev to cc. Kernel consolidation WG might have comments. > > On Tue, Oct 12, 2010 at 9:04 AM, Yong Shen <yong.s...@linaro.org> wrote: > > Hi Amit and Jeremy, > > > > This is not a patch review. But patch may better present my idea. Basically, > > I want to add some code in common clock code to export clock information, so > > every platform can benefit. This information is present in a tree-like > > pattern. > > Currently, each platform uses their own way to show clock info, which is > > hard to use a common user space tool to collect information. > > For this purpose, I need do the rest: > > 1. Add a clock name check in the clkdev_add. We don't accept two clocks with > > the same name to clkdev_add, do we? otherwise, it is impossible to create a > > tree-like structure under file system, cause no same names under a > > directory. > > 2. Recursive function creates the clock tree in debugfs, which referred > > omap's clock implementation. > > 3. Add interface needed to let mach related drivers to report their > > information. clk_get_rate is already there. Maybe we need clk_get_flags() > > and clk_get_usecount() and more. > > Agreed, this functionality is necessary for common clk infrastructure > to be useful. > > We've also incorporated this functionality into a tool called > powerdebug that'll show runtime state of the clock tree. This is very > useful for driver developers.
Agreed. Nicolas _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
