On Sat, Oct 03, 2015 at 07:12:28PM +0100, Russell King - ARM Linux wrote: > Jason, Thomas, > > Here are further PCIe patches which follow on from the previous set of > six I sent earlier in September. This set: > > * Separates the DT parsing from the use of this parsed data. > * Fixes memory leaks from kasprintf() and refcount leaks of the DT > node where we break out from the loop early. > * Uses gpio_set_value_cansleep() so that GPIOs on I2C expanders can > be used for the PCIe reset functionality. > * Switch to using devm_kcalloc() instead of devm_kzalloc(), which > eliminates the multiplication, moving it into core code. > * Switch to using a gpio descriptor for the reset gpio, which can > contain the active level information from DT. (It would be nice > if gpiolib automated some of the resource claiming there.) > * Make PERST# vs clock timing to match PCIe specifications. PCIe > specs require the clock to be running for 100us prior to releasing > reset. > * Add the standard PCIe capability block in root port form to the > emulated PCIe configuration block. This allows the PCI layer to > identify the "host bridge" as a PCIe device, and allows us to > take advantage of the code in drivers/pci/pcie, particularly > aspm for link power management. > * As a result of identifying ourselves as a PCIe root port, this > eliminates the need to special case accesses to non-slot 0 in > the driver; the lack of other "slots" is something which the > generic PCI code knows about for PCIe root ports. > > drivers/pci/host/pci-mvebu.c | 404 ++++++++++++++++++++++++++++++++----------- > 1 file changed, 305 insertions(+), 99 deletions(-) Applied to pci/host-mvebu for v4.4 with Tested-by from Willy, Andrew, and Thomas, and Reviewed-by from Thomas. I adjusted subject line capitalization to match the history. Thanks, Russell and reviewers and testers! Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
