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Subject[PATCH v3 00/11] i.MX6, DesignWare PCI improvements

This is the series containing various small improvements that I made
while reading the code and researching commit history of pci-imx6.c
and pcie-designware*.c files. All changes are optional, so commits
that don't seem like an improvement can be easily dropped. Hopefully
each patch is self-explanatory.

I tested this series on i.MX6Q, i.MX7D and i.MX8MQ.

Feedback is welcome!

Andrey Smirnov

Changes since [v2]:

- All non i.MX6 patches dropped, since they were accepted as a
seprarte series

- Series rebased on lates 'dwc-pci' branch of PCI tree

- Patches "PCI: imx6: Use flags to indicate support for suspend"
and "PCI: imx6: Replace calls to udelay() with usleep_range()"
added to the series

Changes since [v1]:

- Dropped "PCI: imx6: Drop imx6_pcie_link_up()" due to the matter
already having been addressed by "PCI: imx6: Fix link training
status detection in link up check" from Trent Piepho

- Changed "designware" -> "dwc" for all subject lines

- Collected Acked-by's from Gustavo Pimentel


Andrey Smirnov (11):
PCI: imx6: Simplify imx7d_pcie_wait_for_phy_pll_lock()
PCI: imx6: Remove redundant debug tracing
PCI: imx6: Return -ETIMEOUT from imx6_pcie_wait_for_speed_change()
PCI: imx6: Remove PCIE_PL_PFLR_* constants
PCI: dwc: imx6: Share PHY debug register definitions
PCI: imx6: Make use of BIT() in constant definitions
PCI: imx6: Simplify bit operations in PHY functions
PCI: imx6: Simplify pcie_phy_poll_ack()
PCI: imx6: Restrict PHY register data to 16-bit
PCI: imx6: Use flags to indicate support for suspend
PCI: imx6: Replace calls to udelay() with usleep_range()

drivers/pci/controller/dwc/pci-imx6.c | 119 ++++++++-----------
drivers/pci/controller/dwc/pcie-designware.c | 12 +-
drivers/pci/controller/dwc/pcie-designware.h | 3 +
3 files changed, 54 insertions(+), 80 deletions(-)


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