Everyone: 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! Thanks, Andrey Smirnov Chagnes since [v3]: - Collected Reviewed-by from Lucas for most of the patches - Converted "PCI: imx6: Replace calls to udelay() with usleep_range()" to "PCI: imx6: Use usleep_range() in imx6_pcie_enable_ref_clk()" - Converted "PCI: imx6: Remove redundant debug tracing" to "PCI: imx6: Drop imx6_pcie_wait_for_link()" - Converted all of the callers of pcie_phy_poll_ack() to use true/false in "PCI: imx6: Simplify pcie_phy_poll_ack()" Changes since [v2]: - All non i.MX6 patches dropped, since they were accepted as a seprarte series - Series rebased on latest '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 [v3] lkml.kernel.org/r/20190401042547.14067-1-andrew.smir...@gmail.com [v2] lkml.kernel.org/r/20190104174925.17153-1-andrew.smir...@gmail.com [v1] lkml.kernel.org/r/20181221072716.29017-1-andrew.smir...@gmail.com Andrey Smirnov (11): PCI: imx6: Simplify imx7d_pcie_wait_for_phy_pll_lock() PCI: imx6: Drop imx6_pcie_wait_for_link() 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: Use usleep_range() in imx6_pcie_enable_ref_clk() drivers/pci/controller/dwc/pci-imx6.c | 143 ++++++++----------- drivers/pci/controller/dwc/pcie-designware.c | 12 +- drivers/pci/controller/dwc/pcie-designware.h | 3 + 3 files changed, 62 insertions(+), 96 deletions(-) -- 2.20.1