Thread (1 message) 1 message, 1 author, 2016-08-25

Re: [PATCH] MIPS: Octeon: mark GPIO controller node not populated IRQ, init.

From: Aaro Koskinen <hidden>
Date: 2016-08-25 22:40:33
Also in: linux-mips

Possibly related (same subject, not in this thread)

Hi,

On Thu, Aug 25, 2016 at 03:20:55PM -0700, David Daney wrote:
On 08/25/2016 02:22 PM, Steven J. Hill wrote:
quoted
We clear the OF_POPULATED flag for the GPIO controller node, otherwise
the GPIO lines used by the MMC driver are never probed.
Please also mention that gpio-leds failed to probe.
quoted
Fixes: 15cc2ed6dcf9 ("of/irq: Mark initialised interrupt controllers as populated")
Signed-off-by: Steven J. Hill <Steven.Hill-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
---
 arch/mips/cavium-octeon/octeon-irq.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 5a9b87b..41d12d4 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -1619,6 +1619,13 @@ static int __init octeon_irq_init_gpio(
 		return -ENOMEM;
 	}

+	/*
+	 * Clear the OF_POPULATED flag that was set above for the
Can we s/above/in of_irq_init()/ to be less ambiguous?
quoted
+	 * GPIO controller so that the lines used by the MMC driver
I suspect that it is not just MMC that was broken by commit 15cc2ed6dcf9.
Can we get a real description of exactly which kernel facilities are
impacted?  Is it all GPIO, or what?
For me it fixes gpio-leds breakage, so I think it's all GPIO. Referring
to MMC driver is not appropriate anyway as the OCTEON MMC is not yet
merged. :-)
quoted
+	 * will not be skipped.
+	 */
+	of_node_clear_flag(gpio_node, OF_POPULATED);
+
 	return 0;
For this actual code change, you can add:

Tested-by: Aaro Koskinen <redacted>

Thanks,

A.
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