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 4.19 22/23] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers Date: Thu, 3 Jun 2021 13:09:58 -0400 [thread overview] Message-ID: <20210603170959.3169420-22-sashal@kernel.org> (raw) In-Reply-To: <20210603170959.3169420-1-sashal@kernel.org> From: Chris Packham <chris.packham@alliedtelesis.co.nz> [ Upstream commit 7adc7b225cddcfd0f346d10144fd7a3d3d9f9ea7 ] The i2c controllers on the P2040/P2041 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 P2040 Chip Errata Rev Q (latest available at the time of writing). 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/p2041si-post.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi index 51e975d7631a..8921f17fca42 100644 --- a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi @@ -389,7 +389,23 @@ sdhc@114000 { }; /include/ "qoriq-i2c-0.dtsi" + i2c@118000 { + fsl,i2c-erratum-a004447; + }; + + i2c@118100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-i2c-1.dtsi" + i2c@119000 { + fsl,i2c-erratum-a004447; + }; + + i2c@119100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-duart-0.dtsi" /include/ "qoriq-duart-1.dtsi" /include/ "qoriq-gpio-0.dtsi" -- 2.30.2
WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sasha Levin <sashal@kernel.org>, devicetree@vger.kernel.org, Wolfram Sang <wsa@kernel.org>, Chris Packham <chris.packham@alliedtelesis.co.nz>, linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 4.19 22/23] powerpc/fsl: set fsl, i2c-erratum-a004447 flag for P2041 i2c controllers Date: Thu, 3 Jun 2021 13:09:58 -0400 [thread overview] Message-ID: <20210603170959.3169420-22-sashal@kernel.org> (raw) In-Reply-To: <20210603170959.3169420-1-sashal@kernel.org> From: Chris Packham <chris.packham@alliedtelesis.co.nz> [ Upstream commit 7adc7b225cddcfd0f346d10144fd7a3d3d9f9ea7 ] The i2c controllers on the P2040/P2041 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 P2040 Chip Errata Rev Q (latest available at the time of writing). 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/p2041si-post.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi index 51e975d7631a..8921f17fca42 100644 --- a/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi @@ -389,7 +389,23 @@ sdhc@114000 { }; /include/ "qoriq-i2c-0.dtsi" + i2c@118000 { + fsl,i2c-erratum-a004447; + }; + + i2c@118100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-i2c-1.dtsi" + i2c@119000 { + fsl,i2c-erratum-a004447; + }; + + i2c@119100 { + fsl,i2c-erratum-a004447; + }; + /include/ "qoriq-duart-0.dtsi" /include/ "qoriq-duart-1.dtsi" /include/ "qoriq-gpio-0.dtsi" -- 2.30.2
next prev parent reply other threads:[~2021-06-03 17:15 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-03 17:09 [PATCH AUTOSEL 4.19 01/23] spi: Fix spi device unregister flow Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 02/23] net/nfc/rawsock.c: fix a permission check bug Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 03/23] ASoC: Intel: bytcr_rt5640: Add quirk for the Glavey TM800A550L tablet Sasha Levin 2021-06-03 17:09 ` Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 04/23] ASoC: Intel: bytcr_rt5640: Add quirk for the Lenovo Miix 3-830 tablet Sasha Levin 2021-06-03 17:09 ` Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 05/23] ASoC: sti-sas: add missing MODULE_DEVICE_TABLE Sasha Levin 2021-06-03 17:09 ` Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 06/23] isdn: mISDN: netjet: Fix crash in nj_probe: Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 07/23] bonding: init notify_work earlier to avoid uninitialized use Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 08/23] netlink: disable IRQs for netlink_lock_table() Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 09/23] net: mdiobus: get rid of a BUG_ON() Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 10/23] cgroup: disable controllers at parse time Sasha Levin 2021-06-03 17:09 ` Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 11/23] wq: handle VM suspension in stall detection Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 12/23] net/qla3xxx: fix schedule while atomic in ql_sem_spinlock Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 13/23] RDS tcp loopback connection can hang Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 14/23] scsi: bnx2fc: Return failure if io_req is already in ABTS processing Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 15/23] scsi: vmw_pvscsi: Set correct residual data length Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 16/23] scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 17/23] net: macb: ensure the device is available before accessing GEMGXL control registers Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 18/23] net: appletalk: cops: Fix data race in cops_probe1 Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 19/23] nvme-fabrics: decode host pathing error for connect Sasha Levin 2021-06-03 17:09 ` Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 20/23] MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 21/23] bnx2x: Fix missing error code in bnx2x_iov_init_one() Sasha Levin 2021-06-03 17:09 ` Sasha Levin [this message] 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 22/23] powerpc/fsl: set fsl, i2c-erratum-a004447 flag for P2041 i2c controllers Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 23/23] powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 " Sasha Levin 2021-06-03 17:09 ` [PATCH AUTOSEL 4.19 23/23] powerpc/fsl: set fsl, i2c-erratum-a004447 " Sasha Levin
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210603170959.3169420-22-sashal@kernel.org \ --to=sashal@kernel.org \ --cc=chris.packham@alliedtelesis.co.nz \ --cc=devicetree@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linuxppc-dev@lists.ozlabs.org \ --cc=mpe@ellerman.id.au \ --cc=stable@vger.kernel.org \ --cc=wsa@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.