target/linux/gemini/patches-4.14/0005-pinctrl-gemini-Use-generic-DT-parser.patch

   1 From 09240ae27ffca65518f7b9d2360c020c1b1ddabe Mon Sep 17 00:00:00 2001
   2 From: Linus Walleij <linus.walleij@linaro.org>
   3 Date: Sat, 28 Oct 2017 15:37:18 +0200
   4 Subject: [PATCH 05/31] pinctrl: gemini: Use generic DT parser
   5
   6 We can just use the generic Device Tree parser code
   7 in this driver and save some code.
   8
   9 Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
  10 Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
  11 ---
  12  drivers/pinctrl/Kconfig          |  1 +
  13  drivers/pinctrl/pinctrl-gemini.c | 66 +++-------------------------------------
  14  2 files changed, 5 insertions(+), 62 deletions(-)
  15
  16 --- a/drivers/pinctrl/Kconfig
  17 +++ b/drivers/pinctrl/Kconfig
  18 @@ -153,6 +153,7 @@ config PINCTRL_GEMINI
  19         depends on ARCH_GEMINI
  20         default ARCH_GEMINI
  21         select PINMUX
  22 +       select GENERIC_PINCONF
  23         select MFD_SYSCON
  24
  25  config PINCTRL_MCP23S08
  26 --- a/drivers/pinctrl/pinctrl-gemini.c
  27 +++ b/drivers/pinctrl/pinctrl-gemini.c
  28 @@ -13,6 +13,8 @@
  29  #include <linux/pinctrl/machine.h>
  30  #include <linux/pinctrl/pinctrl.h>
  31  #include <linux/pinctrl/pinmux.h>
  32 +#include <linux/pinctrl/pinconf.h>
  33 +#include <linux/pinctrl/pinconf-generic.h>
  34  #include <linux/platform_device.h>
  35  #include <linux/slab.h>
  36  #include <linux/regmap.h>
  37 @@ -1946,73 +1948,13 @@ static void gemini_pin_dbg_show(struct p
  38         seq_printf(s, " " DRIVER_NAME);
  39  }
  40
  41 -static int gemini_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev,
  42 -                                           struct device_node *np,
  43 -                                           struct pinctrl_map **map,
  44 -                                           unsigned int *reserved_maps,
  45 -                                           unsigned int *num_maps)
  46 -{
  47 -       int ret;
  48 -       const char *function = NULL;
  49 -       const char *group;
  50 -       struct property *prop;
  51 -
  52 -       ret = of_property_read_string(np, "function", &function);
  53 -       if (ret < 0)
  54 -               return ret;
  55 -
  56 -       ret = of_property_count_strings(np, "groups");
  57 -       if (ret < 0)
  58 -               return ret;
  59 -
  60 -       ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
  61 -                                       num_maps, ret);
  62 -       if (ret < 0)
  63 -               return ret;
  64 -
  65 -       of_property_for_each_string(np, "groups", prop, group) {
  66 -               ret = pinctrl_utils_add_map_mux(pctldev, map, reserved_maps,
  67 -                                               num_maps, group, function);
  68 -               if (ret < 0)
  69 -                       return ret;
  70 -               pr_debug("ADDED FUNCTION %s <-> GROUP %s\n",
  71 -                        function, group);
  72 -       }
  73 -
  74 -       return 0;
  75 -}
  76 -
  77 -static int gemini_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
  78 -                               struct device_node *np_config,
  79 -                               struct pinctrl_map **map,
  80 -                               unsigned int *num_maps)
  81 -{
  82 -       unsigned int reserved_maps = 0;
  83 -       struct device_node *np;
  84 -       int ret;
  85 -
  86 -       *map = NULL;
  87 -       *num_maps = 0;
  88 -
  89 -       for_each_child_of_node(np_config, np) {
  90 -               ret = gemini_pinctrl_dt_subnode_to_map(pctldev, np, map,
  91 -                                       &reserved_maps, num_maps);
  92 -               if (ret < 0) {
  93 -                       pinctrl_utils_free_map(pctldev, *map, *num_maps);
  94 -                       return ret;
  95 -               }
  96 -       }
  97 -
  98 -       return 0;
  99 -};
 100 -
 101  static const struct pinctrl_ops gemini_pctrl_ops = {
 102         .get_groups_count = gemini_get_groups_count,
 103         .get_group_name = gemini_get_group_name,
 104         .get_group_pins = gemini_get_group_pins,
 105         .pin_dbg_show = gemini_pin_dbg_show,
 106 -       .dt_node_to_map = gemini_pinctrl_dt_node_to_map,
 107 -       .dt_free_map = pinctrl_utils_free_map,
 108 +       .dt_node_to_map = pinconf_generic_dt_node_to_map_group,
 109 +       .dt_free_map = pinconf_generic_dt_free_map,
 110  };
 111
 112  /**