From: Kishon Vijay Abraham I <kishon@ti.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Swapnil Jakhade <sjakhade@cadence.com>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Cc: Nishanth Menon <nm@ti.com>,
stable@vger.kernel.org, Philipp Zabel <p.zabel@pengutronix.de>
Subject: [PATCH v2 01/14] phy: cadence: Sierra: Fix PHY power_on sequence
Date: Tue, 22 Dec 2020 12:35:07 +0530 [thread overview]
Message-ID: <20201222070520.28132-2-kishon@ti.com> (raw)
In-Reply-To: <20201222070520.28132-1-kishon@ti.com>
Commit 44d30d622821d ("phy: cadence: Add driver for Sierra PHY")
de-asserts PHY_RESET even before the configurations are loaded in
phy_init(). However PHY_RESET should be de-asserted only after
all the configurations has been initialized, instead of de-asserting
in probe. Fix it here.
Fixes: 44d30d622821d ("phy: cadence: Add driver for Sierra PHY")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: <stable@vger.kernel.org> # v5.4+
---
drivers/phy/cadence/phy-cadence-sierra.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 26a0badabe38..19f32ae877b9 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -319,6 +319,12 @@ static int cdns_sierra_phy_on(struct phy *gphy)
u32 val;
int ret;
+ ret = reset_control_deassert(sp->phy_rst);
+ if (ret) {
+ dev_err(dev, "Failed to take the PHY out of reset\n");
+ return ret;
+ }
+
/* Take the PHY lane group out of reset */
ret = reset_control_deassert(ins->lnk_rst);
if (ret) {
@@ -616,7 +622,6 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
- reset_control_deassert(sp->phy_rst);
return PTR_ERR_OR_ZERO(phy_provider);
put_child:
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-12-22 7:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-22 7:05 [PATCH v2 00/14] PHY: Add support in Sierra to use external clock Kishon Vijay Abraham I
2020-12-22 7:05 ` Kishon Vijay Abraham I [this message]
2020-12-22 7:05 ` [PATCH v2 02/14] phy: ti: j721e-wiz: Invoke wiz_init() before of_platform_device_create() Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 03/14] dt-bindings: phy: cadence-sierra: Add bindings for the PLLs within SERDES Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 04/14] phy: ti: j721e-wiz: Get PHY properties only for "phy" or "link" subnode Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 05/14] phy: cadence: cadence-sierra: Create PHY only for "phy" or "link" sub-nodes Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 06/14] phy: cadence: cadence-sierra: Move all clk_get_*() to a separate function Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 07/14] phy: cadence: cadence-sierra: Move all reset_control_get*() " Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 08/14] phy: cadence: cadence-sierra: Explicitly request exclusive reset control Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 09/14] phy: cadence: sierra: Model reference receiver as clocks (gate clocks) Kishon Vijay Abraham I
2020-12-23 19:00 ` kernel test robot
2020-12-23 22:45 ` kernel test robot
2020-12-22 7:05 ` [PATCH v2 10/14] phy: cadence: sierra: Enable pll_cmnlc and pll_cmnlc1 clocks Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 11/14] arm64: dts: ti: k3-j721e-main: Add DT nodes for clocks within Sierra SERDES Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 12/14] arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 13/14] arm64: dts: ti: k3-j721e-common-proc-board: Use external clock for SERDES Kishon Vijay Abraham I
2020-12-22 7:05 ` [PATCH v2 14/14] arm64: dts: ti: k3-j721e-common-proc-board: Re-name "link" name as "phy" Kishon Vijay Abraham I
2021-01-25 11:31 ` [PATCH v2 00/14] PHY: Add support in Sierra to use external clock Kishon Vijay Abraham I
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=20201222070520.28132-2-kishon@ti.com \
--to=kishon@ti.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nm@ti.com \
--cc=p.zabel@pengutronix.de \
--cc=robh+dt@kernel.org \
--cc=sjakhade@cadence.com \
--cc=stable@vger.kernel.org \
--cc=vkoul@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: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).