Re: [PATCH] gpio: thunderx: select IRQ_DOMAIN_HIERARCHY instead of depends on

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On 09/05/2017 06:40 PM, Masahiro Yamada wrote:
IRQ_DOMAIN_HIERARCHY is not user-configurable, but supposed to be
selected by drivers that need IRQ domain hierarchy support.

GPIO_THUNDERX is the only user of "depends on IRQ_DOMAIN_HIERARCHY".
This means, we can not enable GPIO_THUNDERX unless other drivers
select IRQ_DOMAIN_HIERARCHY elsewhere.  This is odd.  Flip the logic.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>

IRQ_DOMAIN_HIERARCHY is set as a result of ARCH_THUNDER (this SoC hardware), so it actually works as-is. That said, this looks like a reasonable improvement, and will allow the COMPILE_TEST to enable it, so...

Acked-by: David Daney <david.daney@xxxxxxxxxx>


---

  drivers/gpio/Kconfig | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 3388d54..3f80f16 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -453,7 +453,8 @@ config GPIO_TS4800
  config GPIO_THUNDERX
  	tristate "Cavium ThunderX/OCTEON-TX GPIO"
  	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
-	depends on PCI_MSI && IRQ_DOMAIN_HIERARCHY
+	depends on PCI_MSI
+	select IRQ_DOMAIN_HIERARCHY
  	select IRQ_FASTEOI_HIERARCHY_HANDLERS
  	help
  	  Say yes here to support the on-chip GPIO lines on the ThunderX


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