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| author | Thomas Richard <thomas.richard@bootlin.com> | 2024-06-19 12:15:13 +0200 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2024-09-04 14:09:29 +0000 |
| commit | 6aa9c09f1bcd339749b249830c604871740df268 (patch) | |
| tree | 8350df6599e52bb97bba4ba48014048e7d87121c /drivers/pci/controller/dwc/pci-imx6.c | |
| parent | b8600b8791cb2b7c8be894846b1ecddba7291680 (diff) | |
PCI: Add T_PERST_CLK_US macro
The "Power Sequencing and Reset Signal Timings" table of the PCI
Express Card Electromechanical Specification, Revision 5.1, Section
2.9.2, indicates PERST# should be deasserted after minimum of 100us
once REFCLK is stable (symbol T_PERST-CLK).
Add a macro so that PCIe controller drivers can use it.
Link: https://lore.kernel.org/linux-pci/20240102-j7200-pcie-s2r-v7-5-a2f9156da6c3@bootlin.com
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
[kwilczynski: commit log, update sleep interval macros code comments]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pci-imx6.c')
0 files changed, 0 insertions, 0 deletions