target/linux/sunxi/patches-3.13/153-6-stmmac-use-drvdata-callback-with-compat-strings.patch

   1 From 022066f50f53000679d31eb407693085f37b3f14 Mon Sep 17 00:00:00 2001
   2 From: Chen-Yu Tsai <wens@csie.org>
   3 Date: Fri, 17 Jan 2014 21:24:46 +0800
   4 Subject: [PATCH] net: stmmac: Use driver data and callbacks tied with
   5  compatible strings
   6
   7 The stmmac driver core allows passing feature flags and callbacks via
   8 platform data. Add a similar stmmac_of_data to pass flags and callbacks
   9 tied to compatible strings. This allows us to extend stmmac with glue
  10 layers for different SoCs.
  11
  12 Signed-off-by: Chen-Yu Tsai <wens@csie.org>
  13 Signed-off-by: David S. Miller <davem@davemloft.net>
  14 ---
  15  .../net/ethernet/stmicro/stmmac/stmmac_platform.c  | 44 +++++++++++++++++-----
  16  include/linux/stmmac.h                             | 18 +++++++++
  17  2 files changed, 52 insertions(+), 10 deletions(-)
  18
  19 diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
  20 index 82110f1..bf119db 100644
  21 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
  22 +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
  23 @@ -26,8 +26,20 @@
  24  #include <linux/io.h>
  25  #include <linux/of.h>
  26  #include <linux/of_net.h>
  27 +#include <linux/of_device.h>
  28  #include "stmmac.h"
  29
  30 +static const struct of_device_id stmmac_dt_ids[] = {
  31 +       /* SoC specific glue layers should come before generic bindings */
  32 +       { .compatible = "st,spear600-gmac"},
  33 +       { .compatible = "snps,dwmac-3.610"},
  34 +       { .compatible = "snps,dwmac-3.70a"},
  35 +       { .compatible = "snps,dwmac-3.710"},
  36 +       { .compatible = "snps,dwmac"},
  37 +       { /* sentinel */ }
  38 +};
  39 +MODULE_DEVICE_TABLE(of, stmmac_dt_ids);
  40 +
  41  #ifdef CONFIG_OF
  42  static int stmmac_probe_config_dt(struct platform_device *pdev,
  43                                   struct plat_stmmacenet_data *plat,
  44 @@ -35,10 +47,32 @@ static int stmmac_probe_config_dt(struct platform_device *pdev,
  45  {
  46         struct device_node *np = pdev->dev.of_node;
  47         struct stmmac_dma_cfg *dma_cfg;
  48 +       const struct of_device_id *device;
  49
  50         if (!np)
  51                 return -ENODEV;
  52
  53 +       device = of_match_device(stmmac_dt_ids, &pdev->dev);
  54 +       if (!device)
  55 +               return -ENODEV;
  56 +
  57 +       if (device->data) {
  58 +               const struct stmmac_of_data *data = device->data;
  59 +               plat->has_gmac = data->has_gmac;
  60 +               plat->enh_desc = data->enh_desc;
  61 +               plat->tx_coe = data->tx_coe;
  62 +               plat->rx_coe = data->rx_coe;
  63 +               plat->bugged_jumbo = data->bugged_jumbo;
  64 +               plat->pmt = data->pmt;
  65 +               plat->riwt_off = data->riwt_off;
  66 +               plat->fix_mac_speed = data->fix_mac_speed;
  67 +               plat->bus_setup = data->bus_setup;
  68 +               plat->setup = data->setup;
  69 +               plat->free = data->free;
  70 +               plat->init = data->init;
  71 +               plat->exit = data->exit;
  72 +       }
  73 +
  74         *mac = of_get_mac_address(np);
  75         plat->interface = of_get_phy_mode(np);
  76
  77 @@ -259,16 +293,6 @@ static int stmmac_pltfr_resume(struct device *dev)
  78  static SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops,
  79                         stmmac_pltfr_suspend, stmmac_pltfr_resume);
  80
  81 -static const struct of_device_id stmmac_dt_ids[] = {
  82 -       { .compatible = "st,spear600-gmac"},
  83 -       { .compatible = "snps,dwmac-3.610"},
  84 -       { .compatible = "snps,dwmac-3.70a"},
  85 -       { .compatible = "snps,dwmac-3.710"},
  86 -       { .compatible = "snps,dwmac"},
  87 -       { /* sentinel */ }
  88 -};
  89 -MODULE_DEVICE_TABLE(of, stmmac_dt_ids);
  90 -
  91  struct platform_driver stmmac_pltfr_driver = {
  92         .probe = stmmac_pltfr_probe,
  93         .remove = stmmac_pltfr_remove,
  94 diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
  95 index 0a5a7ac..1367974 100644
  96 --- a/include/linux/stmmac.h
  97 +++ b/include/linux/stmmac.h
  98 @@ -121,4 +121,22 @@ struct plat_stmmacenet_data {
  99         void *custom_data;
 100         void *bsp_priv;
 101  };
 102 +
 103 +/* of_data for SoC glue layer device tree bindings */
 104 +
 105 +struct stmmac_of_data {
 106 +       int has_gmac;
 107 +       int enh_desc;
 108 +       int tx_coe;
 109 +       int rx_coe;
 110 +       int bugged_jumbo;
 111 +       int pmt;
 112 +       int riwt_off;
 113 +       void (*fix_mac_speed)(void *priv, unsigned int speed);
 114 +       void (*bus_setup)(void __iomem *ioaddr);
 115 +       void *(*setup)(struct platform_device *pdev);
 116 +       void (*free)(struct platform_device *pdev, void *priv);
 117 +       int (*init)(struct platform_device *pdev, void *priv);
 118 +       void (*exit)(struct platform_device *pdev, void *priv);
 119 +};
 120  #endif
 121 --
 122 1.8.5.5
 123