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2019-11-03drivers: mcb: use symbol namespacesJohannes Thumshirn1-0/+1
Now that we have symbol namespaces, use them in MCB to not pollute the default namespace with MCB internals. Signed-off-by: Johannes Thumshirn <[email protected]> Reviewed-by: Jessica Yu <[email protected]> Reviewed-by: Michael Moese <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441Thomas Gleixner1-4/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Allison Randal <[email protected]> Reviewed-by: Armijn Hemel <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-03-14mcb: add Altera PCI ID to mcb-pciJohannes Thumshirn1-0/+1
Some older PCI attached MEN FPGAs use an Altera PCI Vendor ID instead of the MEN one. Add it to the PCI ID table so the driver automatically attaches to it. Signed-off-by: Johannes Thumshirn <[email protected]> Reported-by: Ben Turner <[email protected]> Tested-by: Ben Turner <[email protected]> Cc: Andreas Geißler <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-09-27mcb: Enable PCI bus mastering by defaultMichael Moese1-0/+1
In order to successfully perform DMA operations on PCI devices, it is necessary to enble PCI bus mastering, so enable it by default. Signed-off-by: Michael Moese <[email protected]> Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-05-03mcb: Delete num_cells variable which is not requiredAndreas Werner1-3/+1
The num_cells variable is only used in the dev_dbg print, but we can directly use the ret variable which also includes the same value. Signed-off-by: Andreas Werner <[email protected]> Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2016-05-03mcb: Replace ioremap and request_region with the devm versionAndreas Werner1-12/+7
Replaced ioremap with devm_ioremap and request_mem_region with devm_request_mem_region. This makes the code much more cleaner. Signed-off-by: Andreas Werner <[email protected]> Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-10-29mcb: Do not return zero on error path in mcb_pci_probe()Alexey Khoroshilov1-0/+1
There is an error path in mcb_pci_probe() where it returns zero instead of error code. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <[email protected]> Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-10-05mcb: Fix error handling in mcb_pci_probe()Alexey Khoroshilov1-2/+4
If a MCB PCI Carrier device is IO mapped insted of memory-mapped, the memory of the PCI device is still not unmapped. Also the patch adds deallocation of the bus if chameleon_parse_cells() fails. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <[email protected]> Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-04-03mcb: request_mem_region() returns NULL on errorDan Carpenter1-2/+2
The code here is checking for IS_ERR() when request_mem_region() only returns NULL on error and never an ERR_PTR. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-02-03mcb: Fix error path of mcb_pci_probeJohannes Thumshirn1-9/+9
If a MCB PCI Carrier device is IO mapped insted of memory-mapped (which is currently unsupported by the upstream driver) the probe function bails out with -ENOTSUPP. In this case the memory of the PCI device was not unmapped. Also rename error label to reflect what will happen at the destination (suggested by Julia Lawall <[email protected]>. Signed-off-by: Johannes Thumshirn <[email protected]> Reported-by: kbuild test robot <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-01-09mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0Johannes Thumshirn1-9/+18
Currently it is not possible to have a kernel with built-in MCB attached devices. This results out of the fact that mcb-pci requests PCI BAR 0, then parses the chameleon table and calls the driver's probe function before releasing BAR 0 again. When building the kernel with modules this is not a problem (and therefore it wasn't detected by my tests yet). A solution is to only remap the 1st 0x200 bytes of a Chameleon PCI device. 0x200 bytes is the maximum size of a Chameleon v2 Table. Also this patch stops disabling the PCI device on successful registration of MCB devices. Signed-off-by: Johannes Thumshirn <[email protected]> Suggested-by: Bjorn Helgaas <[email protected]> Reviewed-by: Bjorn Helgaas <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2014-05-27mcb: Add support for shared PCI IRQsJohannes Thumshirn1-1/+16
Add support for shared PCI IRQs to mcb and mcb-pci. Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2014-02-28mcb: Add PCI carrier for MEN Chameleon BusJohannes Thumshirn1-0/+114
Add support for MCB over PCI devices. Both PCI attached on-board Chameleon FPGAs as well as CompactPCI based MCB carrier cards are supported with this driver. Signed-off-by: Johannes Thumshirn <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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