On Thu, Mar 23, 2017 at 04:06:56PM +0800, Sean Wang wrote: > Hi Andrew, > > The purpose for the regmap table registered is to > > provide a way which helps us to look up a specific > > register on the switch through regmap-debugfs. > > > And not all ranges of register is defined > > so I only include the meaningful ones in a sparse way > > for the table. Many of there registers can be dumped using existing tools. You can dump the port registers using ethtool -r, if you implement get_regs/get_regs_len in your driver. mii-tool can dump the PHY registers. What you cannot see are global registers, so i can understand the usage of regmap-debugfs. However, i have a hard time with you only actually using the regmap for get/set for one small subset of registers. Either you need to use regmap to get/set all registers, or you remove it from the mainline driver, and keep it as a private patch which you use for your development work. For the Marvell driver we have an out of tree patch which exports a log of information via debugfs. Andrew -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html