Hi David, There have been a number of reports that Linux kernel builds fail on SPARC because it doesn't support OF_GPIO, which provides the of_node field of the struct gpio_chip. One of the drivers I wrote (gpio-adnp) accesses this unconditionally but only depends on OF and not OF_GPIO, so it fails to build on SPARC. A similar problem happens with the gpio-fan driver, which defines the OF match table only if OF_GPIO is selected, but uses it even if only OF but not OF_GPIO is selected. While it is clearly the drivers which are at fault here it still raises the question as to why SPARC still conflicts with OF_GPIO. Over two years ago, commit 5ab5fc7 made most of the OF symbols available to all platforms except SPARC. The commit message explicitly states that this should probably be re-evaluated. Are you aware of any reasons why this conflict would still be necessary? This is not only the case for OF_GPIO but likely also for OF_SPI, OF_I2C, OF_IRQ and OF_ADDRESS. Shouldn't those all work even on SPARC nowadays? Thierry
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