From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>,
Michael Ellerman <mpe@ellerman.id.au>,
Wolfram Sang <wsa@kernel.org>, Sasha Levin <sashal@kernel.org>,
devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH AUTOSEL 4.9 17/17] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers
Date: Thu, 3 Jun 2021 13:10:52 -0400 [thread overview]
Message-ID: <20210603171052.3169893-17-sashal@kernel.org> (raw)
In-Reply-To: <20210603171052.3169893-1-sashal@kernel.org>
From: Chris Packham <chris.packham@alliedtelesis.co.nz>
[ Upstream commit 19ae697a1e4edf1d755b413e3aa38da65e2db23b ]
The i2c controllers on the P1010 have an erratum where the documented
scheme for i2c bus recovery will not work (A-004447). A different
mechanism is needed which is documented in the P1010 Chip Errata Rev L.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
index af12ead88c5f..404f570ebe23 100644
--- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
@@ -122,7 +122,15 @@ memory-controller@2000 {
};
/include/ "pq3-i2c-0.dtsi"
+ i2c@3000 {
+ fsl,i2c-erratum-a004447;
+ };
+
/include/ "pq3-i2c-1.dtsi"
+ i2c@3100 {
+ fsl,i2c-erratum-a004447;
+ };
+
/include/ "pq3-duart-0.dtsi"
/include/ "pq3-espi-0.dtsi"
spi0: spi@7000 {
--
2.30.2
prev parent reply other threads:[~2021-06-03 17:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-03 17:10 [PATCH AUTOSEL 4.9 01/17] net/nfc/rawsock.c: fix a permission check bug Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 02/17] ASoC: sti-sas: add missing MODULE_DEVICE_TABLE Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 03/17] isdn: mISDN: netjet: Fix crash in nj_probe: Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 04/17] bonding: init notify_work earlier to avoid uninitialized use Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 05/17] netlink: disable IRQs for netlink_lock_table() Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 06/17] net: mdiobus: get rid of a BUG_ON() Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 07/17] cgroup: disable controllers at parse time Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 08/17] wq: handle VM suspension in stall detection Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 09/17] net/qla3xxx: fix schedule while atomic in ql_sem_spinlock Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 10/17] scsi: vmw_pvscsi: Set correct residual data length Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 11/17] scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 12/17] net: macb: ensure the device is available before accessing GEMGXL control registers Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 13/17] net: appletalk: cops: Fix data race in cops_probe1 Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 14/17] MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 15/17] bnx2x: Fix missing error code in bnx2x_iov_init_one() Sasha Levin
2021-06-03 17:10 ` [PATCH AUTOSEL 4.9 16/17] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Sasha Levin
2021-06-03 17:10 ` Sasha Levin [this message]
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