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author | Al Viro <viro@zeniv.linux.org.uk> | 2014-06-12 00:27:11 -0400 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-06-12 00:28:09 -0400 |
commit | 9c1d5284c79fea050f115eadeec1dd1758e5c630 (patch) | |
tree | 4d16fd5aad7ff4931e985c0128c5747f23561f8a /arch/arm/mach-mvebu | |
parent | 5f073850602084fbcbb987948ff3e70ae273f7d2 (diff) | |
parent | 9f12600fe425bc28f0ccba034a77783c09c15af4 (diff) | |
download | talos-op-linux-9c1d5284c79fea050f115eadeec1dd1758e5c630.tar.gz talos-op-linux-9c1d5284c79fea050f115eadeec1dd1758e5c630.zip |
Merge commit '9f12600fe425bc28f0ccba034a77783c09c15af4' into for-linus
Backmerge of dcache.c changes from mainline. It's that, or complete
rebase...
Conflicts:
fs/splice.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-mvebu')
-rw-r--r-- | arch/arm/mach-mvebu/mvebu-soc-id.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/mach-mvebu/mvebu-soc-id.c b/arch/arm/mach-mvebu/mvebu-soc-id.c index f3d4cf53f746..09520e19b78e 100644 --- a/arch/arm/mach-mvebu/mvebu-soc-id.c +++ b/arch/arm/mach-mvebu/mvebu-soc-id.c @@ -108,7 +108,18 @@ static int __init mvebu_soc_id_init(void) iounmap(pci_base); res_ioremap: - clk_disable_unprepare(clk); + /* + * If the PCIe unit is actually enabled and we have PCI + * support in the kernel, we intentionally do not release the + * reference to the clock. We want to keep it running since + * the bootloader does some PCIe link configuration that the + * kernel is for now unable to do, and gating the clock would + * make us loose this precious configuration. + */ + if (!of_device_is_available(child) || !IS_ENABLED(CONFIG_PCI_MVEBU)) { + clk_disable_unprepare(clk); + clk_put(clk); + } clk_err: of_node_put(child); |