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Subject[RESEND v4 0/6] PCI: imx6: refine codes and add compliance tests mode support
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This series patches refine pci-imx6 driver and do the following changes.
- Encapsulate the clock enable into one standalone function
- Add the error propagation from host_init
- Balance the usage of the regulator and clocks when link never came up
- Add the compliance tests mode support

Main changes from v3 to v4:
- Regarding Mark's comments, delete the regulator_is_enabled() check.
- Squash #3 and #6 of v3 patch into #5 patch of v4 set.

Main changes from v2 to v3:
- Add "Reviewed-by: Lucas Stach <l.stach@pengutronix.de>" tag into
first two patches.
- Add a Fixes tag into #3 patch.
- Split the #4 of v2 to two patches, one is clock disable codes move,
the other one is the acutal clock unbalance fix.
- Add a new host_exit() callback into dw_pcie_host_ops, then it could be
invoked to handle the unbalance issue in the error handling after
host_init() function when link is down.
- Add a new host_exit() callback for i.MX PCIe driver to handle this case
in the error handling after host_init.

Main changes from v1 to v2:
Regarding Lucas' comments.
- Move the placement of the new imx6_pcie_clk_enable() to avoid the
forward declarition.
- Seperate the second patch of v1 patch-set to three patches.
- Use the module_param to replace the kernel command line.
Regarding Bjorn's comments:
- Use the cover-letter for a multi-patch series.
- Correct the subject line, and refine the commit logs. For example,
remove the timestamp of the logs.

drivers/pci/controller/dwc/pci-imx6.c | 187 +++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------------------
drivers/pci/controller/dwc/pcie-designware-host.c | 5 ++-
drivers/pci/controller/dwc/pcie-designware.h | 1 +
3 files changed, 119 insertions(+), 74 deletions(-)

[RESEND v4 1/6] PCI: imx6: Encapsulate the clock enable into one
[RESEND v4 2/6] PCI: imx6: Add the error propagation from host_init
[RESEND v4 3/6] PCI: imx6: PCI: imx6: Move imx6_pcie_clk_disable()
[RESEND v4 4/6] PCI: dwc: Add dw_pcie_host_ops.host_exit() callback
[RESEND v4 5/6] PCI: imx6: Fix the regulator dump when link never
[RESEND v4 6/6] PCI: imx6: Add the compliance tests mode support

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