From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from pandora.arm.linux.org.uk ([78.32.30.218]:36868 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750733AbbJCSMj (ORCPT ); Sat, 3 Oct 2015 14:12:39 -0400 Date: Sat, 3 Oct 2015 19:12:28 +0100 From: Russell King - ARM Linux To: Jason Cooper , Thomas Petazzoni Cc: Bjorn Helgaas , linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org Subject: [PATCH 0/9] Further mvebu PCIe patches Message-ID: <20151003181228.GI21513@n2100.arm.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-pci-owner@vger.kernel.org List-ID: 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(-) -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.