linux-kernel - [PATCH AUTOSEL 6.1 081/212] powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7

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Message-Id: <20250505230624.2692522-81-sashal@kernel.org>
Date: Mon,  5 May 2025 19:04:13 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Andreas Schwab <schwab@...ux-m68k.org>,
	Rob Herring <robh@...nel.org>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Sasha Levin <sashal@...nel.org>,
	mpe@...erman.id.au,
	sourabhjain@...ux.ibm.com,
	linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH AUTOSEL 6.1 081/212] powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7

From: Andreas Schwab <schwab@...ux-m68k.org>

[ Upstream commit 7e67ef889c9ab7246547db73d524459f47403a77 ]

Similar to the PowerMac3,1, the PowerBook6,7 is missing the #size-cells
property on the i2s node.

Depends-on: commit 045b14ca5c36 ("of: WARN on deprecated #address-cells/#size-cells handling")
Signed-off-by: Andreas Schwab <schwab@...ux-m68k.org>
Acked-by: Rob Herring (Arm) <robh@...nel.org>
[maddy: added "commit" work in depends-on to avoid checkpatch error]
Signed-off-by: Madhavan Srinivasan <maddy@...ux.ibm.com>
Link: https://patch.msgid.link/875xmizl6a.fsf@igel.home
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/kernel/prom_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index a6090896f7497..ac669e58e2023 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2974,11 +2974,11 @@ static void __init fixup_device_tree_pmac(void)
 	char type[8];
 	phandle node;
 
-	// Some pmacs are missing #size-cells on escc nodes
+	// Some pmacs are missing #size-cells on escc or i2s nodes
 	for (node = 0; prom_next_node(&node); ) {
 		type[0] = '\0';
 		prom_getprop(node, "device_type", type, sizeof(type));
-		if (prom_strcmp(type, "escc"))
+		if (prom_strcmp(type, "escc") && prom_strcmp(type, "i2s"))
 			continue;
 
 		if (prom_getproplen(node, "#size-cells") != PROM_ERROR)
-- 
2.39.5