PCI: dwc: all: Modify dbi accessors to access data of 4/2/1 bytes

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Previously dbi accessors can be used to access data of size 4 bytes. But
there might be situations (like accessing MSI_MESSAGE_CONTROL in order to
set/get the number of required MSI interrupts in EP mode) where dbi
accessors must be used to access data of size 2. This is in preparation
for adding endpoint mode support to designware driver.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Niklas Cassel <niklas.cassel@axis.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Joao Pinto <Joao.Pinto@synopsys.com>

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Kishon Vijay Abraham I 2017-03-13 19:13:26 +05:30 • committed by Bjorn Helgaas

parent b50b2db266

commit a509d7d9af

3 changed files with 42 additions and 26 deletions

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16

drivers/pci/dwc/pci-exynos.c

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34

drivers/pci/dwc/pcie-designware.c

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18

drivers/pci/dwc/pcie-designware.h

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