This adds suspend to ram support for the PCIe (RC mode) on J7200 platform. In this 7th iteration, the i2c and mux patches were moved to dedicated series ([1] and [2]). The patch for the gpio-pca953x driver was removed. It will be sent separately for further testing and discussion. No merge conflict with 6.10-rc4. [1]: https://lore.kernel.org/all/20240613-i2c-omap-wakeup-controller-during-suspend-v1-0-aab001eb1ad1@xxxxxxxxxxx/ [2]: https://lore.kernel.org/all/20240613-mux-mmio-resume-support-v1-0-4525bf56024a@xxxxxxxxxxx/ Regards, Thomas Signed-off-by: Thomas Richard <thomas.richard@xxxxxxxxxxx> --- Changes in v7: - all: series rebased on Linux 6.10-rc4. - i2c: patches moved to a dedicated series. - mux: patches moved to a dedicated series. - gpio-pca953x: patch removed, will be sent separately. - Link to v6: https://lore.kernel.org/r/20240102-j7200-pcie-s2r-v6-0-4656ef6e6d66@xxxxxxxxxxx Changes in v6: - i2c-omap: add a patch to remove __maybe_unused attribute of omap_i2c_runtime_suspend() and omap_i2c_runtime_resume() - i2c-omap: fix compile issue if CONFIG_PM_SLEEP is not set - Link to v5: https://lore.kernel.org/r/20240102-j7200-pcie-s2r-v5-0-4b8c46711ded@xxxxxxxxxxx Changes in v5: - all: series rebased on Linux 6.9-rc1 - pinctrl-single: patch removed (already applied to the pinctrl tree) - phy: patches moved to a dedicated series. - pci: add T_PERST_CLK_US macro. - pci-j721e: update the comments about T_PERST_CLK_US. - Link to v4: https://lore.kernel.org/r/20240102-j7200-pcie-s2r-v4-0-6f1f53390c85@xxxxxxxxxxx Changes in v4: - all: use SoB/Co-developed-by for patches initially developed by Théo Lebrun. - pinctrl-single: squash the two commits. - i2c-omap: fix line lenghts of the comment in omap_i2c_suspend(). - mux: mux_chip_resume() return 0 or at the first error. - phy-j721e-wiz: clean code around dev_err_probe(). - phy-j721e-wiz: use REF_CLK_100MHZ macros. - pci: fix subject line for all PCI patches. - pci-cadence: use fsleep() instead of usleep_range(). - pci-cadence: remove cdns_torrent_clk_cleanup() call in cdns_torrent_phy_resume_noirq(). - pci-j721e: add a patch to use dev_err_probe() instead of dev_err() in the probe(). - pci-j721e: fix unordered header files. - pci-j721e: remove some log spammers. - pci-j721e: add a missing clock disable in j721e_pcie_resume_noirq(). - pci-j721e: simplify the patch "Add reset GPIO to struct j721e_pcie" - Link to v3: https://lore.kernel.org/r/20240102-j7200-pcie-s2r-v3-0-5c2e4a3fac1f@xxxxxxxxxxx Changes in v3: - pinctrl-single: split patch in two parts, a first patch to remove the dead code, a second to move suspend()/resume() callbacks to noirq. - i2c-omap: add a comments above the suspend_noirq() callback. - mux: now mux_chip_resume() try to restores all muxes, then return 0 if all is ok or the first failure. - mmio: fix commit message. - phy-j721e-wiz: add a patch to use dev_err_probe() instead of dev_err() in the wiz_clock_init() function. - phy-j721e-wiz: remove probe boolean for the wiz_clock_init(), rename the function to wiz_clock_probe(), extract hardware configuration part in a new function wiz_clock_init(). - phy-cadence-torrent: use dev_err_probe() and fix commit messages - pcie-cadence-host: remove probe boolean for the cdns_pcie_host_setup() function and extract the link setup part in a new function cdns_pcie_host_link_setup(). - pcie-cadence-host: make cdns_pcie_host_init() global. - pci-j721e: use the cdns_pcie_host_link_setup() cdns_pcie_host_init() functions in the resume_noirq() callback. - Link to v2: https://lore.kernel.org/r/20240102-j7200-pcie-s2r-v2-0-8e4f7d228ec2@xxxxxxxxxxx Changes in v2: - all: fix commits messages. - all: use DEFINE_NOIRQ_DEV_PM_OPS and pm_sleep_ptr macros. - all: remove useless #ifdef CONFIG_PM. - pinctrl-single: drop dead code - mux: add mux_chip_resume() function in mux core. - mmio: resume sequence is now a call to mux_chip_resume(). - phy-cadence-torrent: fix typo in resume sequence (reset_control_assert() instead of reset_control_put()). - phy-cadence-torrent: use PHY instead of phy. - pci-j721e: do not shadow cdns_pcie_host_setup return code in resume sequence. - pci-j721e: drop dead code. - Link to v1: https://lore.kernel.org/r/20240102-j7200-pcie-s2r-v1-0-84e55da52400@xxxxxxxxxxx --- Thomas Richard (5): PCI: cadence: Extract link setup sequence from cdns_pcie_host_setup() PCI: cadence: Set cdns_pcie_host_init() global PCI: j721e: Use dev_err_probe() in the probe() function PCI: Add T_PERST_CLK_US macro PCI: j721e: Use T_PERST_CLK_US macro Théo Lebrun (2): PCI: j721e: Add reset GPIO to struct j721e_pcie PCI: j721e: Add suspend and resume support drivers/pci/controller/cadence/pci-j721e.c | 121 ++++++++++++++++++--- drivers/pci/controller/cadence/pcie-cadence-host.c | 44 +++++--- drivers/pci/controller/cadence/pcie-cadence.h | 12 ++ drivers/pci/pci.h | 3 + 4 files changed, 146 insertions(+), 34 deletions(-) --- base-commit: 7510725e693fb5e4b4cd17086cc5a49a7a065b9c change-id: 20240102-j7200-pcie-s2r-ecb1a979e357 Best regards, -- Thomas Richard <thomas.richard@xxxxxxxxxxx>
