target/linux/layerscape/patches-5.4/701-net-0253-net-mscc-ocelot-move-resource-ioremap-and-regmap-ini.patch

   1 From 01c0da9c8cd3ff6cbe0ced8e28505d4195f60db4 Mon Sep 17 00:00:00 2001
   2 From: Claudiu Manoil <claudiu.manoil@nxp.com>
   3 Date: Thu, 14 Nov 2019 17:03:20 +0200
   4 Subject: [PATCH] net: mscc: ocelot: move resource ioremap and regmap init to
   5  common code
   6
   7 Let's make this ioremap and regmap init code common.  It should not
   8 be platform dependent as it should be usable by PCI devices too.
   9 Use better names where necessary to avoid clashes.
  10
  11 Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
  12 Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
  13 Signed-off-by: David S. Miller <davem@davemloft.net>
  14 ---
  15  drivers/net/ethernet/mscc/ocelot.h       |  4 +---
  16  drivers/net/ethernet/mscc/ocelot_board.c | 17 ++++++++++-------
  17  drivers/net/ethernet/mscc/ocelot_io.c    | 14 +++++---------
  18  3 files changed, 16 insertions(+), 19 deletions(-)
  19
  20 --- a/drivers/net/ethernet/mscc/ocelot.h
  21 +++ b/drivers/net/ethernet/mscc/ocelot.h
  22 @@ -546,9 +546,7 @@ void ocelot_port_writel(struct ocelot_po
  23
  24  int ocelot_regfields_init(struct ocelot *ocelot,
  25                           const struct reg_field *const regfields);
  26 -struct regmap *ocelot_io_platform_init(struct ocelot *ocelot,
  27 -                                      struct platform_device *pdev,
  28 -                                      const char *name);
  29 +struct regmap *ocelot_regmap_init(struct ocelot *ocelot, struct resource *res);
  30
  31  #define ocelot_field_write(ocelot, reg, val) regmap_field_write((ocelot)->regfields[(reg)], (val))
  32  #define ocelot_field_read(ocelot, reg, val) regmap_field_read((ocelot)->regfields[(reg)], (val))
  33 --- a/drivers/net/ethernet/mscc/ocelot_board.c
  34 +++ b/drivers/net/ethernet/mscc/ocelot_board.c
  35 @@ -276,7 +276,7 @@ static int mscc_ocelot_probe(struct plat
  36                 enum ocelot_target id;
  37                 char *name;
  38                 u8 optional:1;
  39 -       } res[] = {
  40 +       } io_target[] = {
  41                 { SYS, "sys" },
  42                 { REW, "rew" },
  43                 { QSYS, "qsys" },
  44 @@ -296,20 +296,23 @@ static int mscc_ocelot_probe(struct plat
  45         platform_set_drvdata(pdev, ocelot);
  46         ocelot->dev = &pdev->dev;
  47
  48 -       for (i = 0; i < ARRAY_SIZE(res); i++) {
  49 +       for (i = 0; i < ARRAY_SIZE(io_target); i++) {
  50                 struct regmap *target;
  51 +               struct resource *res;
  52
  53 -               target = ocelot_io_platform_init(ocelot, pdev, res[i].name);
  54 +               res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
  55 +                                                  io_target[i].name);
  56 +
  57 +               target = ocelot_regmap_init(ocelot, res);
  58                 if (IS_ERR(target)) {
  59 -                       if (res[i].optional) {
  60 -                               ocelot->targets[res[i].id] = NULL;
  61 +                       if (io_target[i].optional) {
  62 +                               ocelot->targets[io_target[i].id] = NULL;
  63                                 continue;
  64                         }
  65 -
  66                         return PTR_ERR(target);
  67                 }
  68
  69 -               ocelot->targets[res[i].id] = target;
  70 +               ocelot->targets[io_target[i].id] = target;
  71         }
  72
  73         hsio = syscon_regmap_lookup_by_compatible("mscc,ocelot-hsio");
  74 --- a/drivers/net/ethernet/mscc/ocelot_io.c
  75 +++ b/drivers/net/ethernet/mscc/ocelot_io.c
  76 @@ -97,20 +97,16 @@ static struct regmap_config ocelot_regma
  77         .reg_stride     = 4,
  78  };
  79
  80 -struct regmap *ocelot_io_platform_init(struct ocelot *ocelot,
  81 -                                      struct platform_device *pdev,
  82 -                                      const char *name)
  83 +struct regmap *ocelot_regmap_init(struct ocelot *ocelot, struct resource *res)
  84  {
  85 -       struct resource *res;
  86         void __iomem *regs;
  87
  88 -       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
  89         regs = devm_ioremap_resource(ocelot->dev, res);
  90         if (IS_ERR(regs))
  91                 return ERR_CAST(regs);
  92
  93 -       ocelot_regmap_config.name = name;
  94 -       return devm_regmap_init_mmio(ocelot->dev, regs,
  95 -                                    &ocelot_regmap_config);
  96 +       ocelot_regmap_config.name = res->name;
  97 +
  98 +       return devm_regmap_init_mmio(ocelot->dev, regs, &ocelot_regmap_config);
  99  }
 100 -EXPORT_SYMBOL(ocelot_io_platform_init);
 101 +EXPORT_SYMBOL(ocelot_regmap_init);