The Tegra264 PCIe drivers don't build for kernels that don't have:
1. The structure mrq_pcie_request_req defined
2. The function pci_epc_deinit_notify() present
This is currently being handling by building a dummy driver for kernels
that don't have these. To simplify this, use conftest to detect if the
above are present and modify the Tegra264 PCIe driver accordingly if
they are not present. By using conftest we can remove the Makefile
variable 'NV_OOT_PCIE_T264_SOC_SKIP_BUILD' and ccflag
'DNV_CONFIG_PCIE_TEGRA_DMA_DISABLE'.
Finally, the PCIe drivers are always built as modules so simplify the
Makefile and remove the usage of 'CONFIG_TEGRA_OOT_MODULE'.
Bug 4911768
Change-Id: Id282497b8607a732b5e6c90e1e7c1436589a0b5f
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3245592
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
When Link up fails during driver probe, controller is kept powered
on, even when controller is not configured as hot plug capable.
This results in more power consumption. Turn off controller when
no link detected during driver probe, only when controller does not
have hot-plug capability.
Ignore resume and remove AI's when no link during probe for no
hot-pluggable controllers.
Ignore Link state check for VDK, on which it cannot be detected.
Bug 4688706
Change-Id: I80a2b5845d48b07f25f65dc7cf5509aeb5778399
Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3246221
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Add support for handling the PEX WAKE GPIO (pex_wake_gpiod) by
parsing the pex-wake GPIO from the device tree and setup the
interrupt line.
Enable and disable the wake-up interrupt during system
suspend/resume.
Bug 4788812
Change-Id: Ie8936aa9cc551db1a5d24b277b091de5fbc0439e
Signed-off-by: Revanth Kumar Uppala <ruppala@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t264/+/3212875
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
The only functions needed from the private pci.h header are
pci_dev_is_disconnected() and of_get_pci_domain_nr().
Starting with Linux v6.9, pci_dev_is_disconnected() has been moved to
the public header and now the private header conflicts with the public
due to multiple definitions. It is better to remove the private pci.h
header file and backport the upstream change that moves the definition
of pci_dev_is_disconnected() to the public header.
With regard to the function of_get_pci_domain_nr(), just declare an
extern for the function prototype in the driver file rather than
copying the entire kernel header.
Bug 4471899
Change-Id: I10e7c3c6a92e9ba87153b2682cc3e69ced8c1a31
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t264/+/3117272
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Per PCIe r5.0, 6.6.1 wait for 100 ms after DLL up. Optimize PCIe link up
poll logic. Add resume_noirq() callback back function in PCIe driver and
call tegra264_pcie_init() to deassert PERST# and get PCIe link up.
Also, fix minor coding style issues.
Bug 4404453
Change-Id: Iad2d22166eb0c80a20b74ada2ee2766f8d3e174f
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-t264/+/3107413
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
