This is a note to let you know that I've just added the patch titled
PCI: dra7xx: Add shutdown handler to cleanly turn off clocks
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-dra7xx-add-shutdown-handler-to-cleanly-turn-off-clocks.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon 11 Nov 2019 10:07:22 AM CET
From: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Date: Thu, 5 Sep 2019 10:17:51 -0600
Subject: PCI: dra7xx: Add shutdown handler to cleanly turn off clocks
To: stable@xxxxxxxxxxxxxxx
Cc: linux-usb@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-omap@xxxxxxxxxxxxxxx, linux-i2c@xxxxxxxxxxxxxxx, linux-pci@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx
Message-ID: <20190905161759.28036-11-mathieu.poirier@xxxxxxxxxx>
From: Keerthy <j-keerthy@xxxxxx>
commit 9c049bea083fea21373b8baf51fe49acbe24e105 upstream
Add shutdown handler to cleanly turn off clocks. This will help in cases of
kexec where in a new kernel can boot abruptly.
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Acked-by: Kishon Vijay Abraham I <kishon@xxxxxx>
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/dwc/pci-dra7xx.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
--- a/drivers/pci/dwc/pci-dra7xx.c
+++ b/drivers/pci/dwc/pci-dra7xx.c
@@ -817,6 +817,22 @@ static int dra7xx_pcie_resume_noirq(stru
}
#endif
+void dra7xx_pcie_shutdown(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct dra7xx_pcie *dra7xx = dev_get_drvdata(dev);
+ int ret;
+
+ dra7xx_pcie_stop_link(dra7xx->pci);
+
+ ret = pm_runtime_put_sync(dev);
+ if (ret < 0)
+ dev_dbg(dev, "pm_runtime_put_sync failed\n");
+
+ pm_runtime_disable(dev);
+ dra7xx_pcie_disable_phy(dra7xx);
+}
+
static const struct dev_pm_ops dra7xx_pcie_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dra7xx_pcie_suspend, dra7xx_pcie_resume)
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(dra7xx_pcie_suspend_noirq,
@@ -830,5 +846,6 @@ static struct platform_driver dra7xx_pci
.suppress_bind_attrs = true,
.pm = &dra7xx_pcie_pm_ops,
},
+ .shutdown = dra7xx_pcie_shutdown,
};
builtin_platform_driver_probe(dra7xx_pcie_driver, dra7xx_pcie_probe);
Patches currently in stable-queue which might be from mathieu.poirier@xxxxxxxxxx are
queue-4.14/mailbox-reset-txdone_method-txdone_by_poll-if-client-knows_txdone.patch
queue-4.14/mtd-spi-nor-cadence-quadspi-add-a-delay-in-write-sequence.patch
queue-4.14/misc-pci_endpoint_test-fix-bug_on-error-during-pci_disable_msi.patch
queue-4.14/asoc-tlv320dac31xx-mark-expected-switch-fall-through.patch
queue-4.14/pci-dra7xx-add-shutdown-handler-to-cleanly-turn-off-clocks.patch
queue-4.14/asoc-tlv320aic31xx-handle-inverted-bclk-in-non-dsp-modes.patch
queue-4.14/mtd-spi-nor-enable-4b-opcodes-for-mx66l51235l.patch
queue-4.14/cpufreq-ti-cpufreq-add-missing-of_node_put.patch
queue-4.14/asoc-davinci-kill-bug_on-usage.patch
queue-4.14/mfd-palmas-assign-the-right-powerhold-mask-for-tps65917.patch
queue-4.14/asoc-davinci-mcasp-fix-an-error-handling-path-in-davinci_mcasp_probe.patch
queue-4.14/misc-pci_endpoint_test-prevent-some-integer-overflows.patch
queue-4.14/asoc-davinci-mcasp-handle-return-value-of-devm_kasprintf.patch
queue-4.14/i2c-omap-trigger-bus-recovery-in-lockup-case.patch
queue-4.14/usb-dwc3-allow-disabling-of-metastability-workaround.patch
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