linux-kernel - [PATCH v2 00/20] i.MX6, DesignWare PCI improvements

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Message-Id: <20190104174925.17153-1-andrew.smirnov@gmail.com>
Date:   Fri,  4 Jan 2019 09:49:05 -0800
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-pci@...r.kernel.org
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Fabio Estevam <fabio.estevam@....com>,
        Chris Healy <cphealy@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Leonard Crestez <leonard.crestez@....com>,
        "A.s. Dong" <aisheng.dong@....com>,
        Richard Zhu <hongxing.zhu@....com>, linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 00/20] i.MX6, DesignWare PCI improvements

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

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

[v1] lkml.kernel.org/r/20181221072716.29017-1-andrew.smirnov@...il.com

Andrey Smirnov (20):
  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 duplicate macro definitions
  PCI: imx6: Remove PCIE_PL_PFLR_* constants
  PCI: imx6: Remove PCIE_PHY_RX_ASIC_OUT* constants
  PCI: dwc: Make use of IS_ALIGNED()
  PCI: dwc: Share code for dw_pcie_rd/wr_other_conf()
  PCI: dwc: imx6: Share PHY debug register definitions
  PCI: dwc: Make use of BIT() in constant 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: Pass data to dw_pcie_writel_dbi() directly
  PCI: imx6: Use common mask in imx6_pcie_reset_phy()
  PCI: imx6: Simplify bit operations in imx6_setup_phy_mpll()
  PCI: imx6: Remove magic numbers from imx6_pcie_establish_link()
  PCI: dwc: Make use of GENMASK/FIELD_PREP
  PCI: dwc: Remove superfluous shifting in definitions

 drivers/pci/controller/dwc/pci-imx6.c         | 139 +++++++-----------
 .../pci/controller/dwc/pcie-designware-host.c |  61 +++-----
 drivers/pci/controller/dwc/pcie-designware.c  |  18 +--
 drivers/pci/controller/dwc/pcie-designware.h  |  60 ++++----
 4 files changed, 115 insertions(+), 163 deletions(-)

-- 
2.20.1