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=summ...
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@vger.kernel.org know about it.
From foo@baz Mon 11 Nov 2019 10:07:22 AM CET
From: Mathieu Poirier mathieu.poirier@linaro.org Date: Thu, 5 Sep 2019 10:17:51 -0600 Subject: PCI: dra7xx: Add shutdown handler to cleanly turn off clocks To: stable@vger.kernel.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-pci@vger.kernel.org, linux-mtd@lists.infradead.org Message-ID: 20190905161759.28036-11-mathieu.poirier@linaro.org
From: Keerthy j-keerthy@ti.com
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@ti.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Acked-by: Kishon Vijay Abraham I kishon@ti.com Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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@linaro.org 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