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pinctrl: allow pctldevs to decode pin config in debugfs
Add a pinconf op so that pin controller drivers can decode their pin config settings for debugfs. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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c736d73c9e
commit
6cb4158757
2 changed files with 32 additions and 4 deletions
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@ -379,8 +379,16 @@ int pinconf_apply_setting(struct pinctrl_setting const *setting)
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void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map)
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void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map)
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{
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{
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struct pinctrl_dev *pctldev;
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const struct pinconf_ops *confops;
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int i;
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int i;
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pctldev = get_pinctrl_dev_from_devname(map->ctrl_dev_name);
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if (pctldev)
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confops = pctldev->desc->confops;
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else
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confops = NULL;
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switch (map->type) {
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switch (map->type) {
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case PIN_MAP_TYPE_CONFIGS_PIN:
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case PIN_MAP_TYPE_CONFIGS_PIN:
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seq_printf(s, "pin ");
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seq_printf(s, "pin ");
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@ -394,8 +402,15 @@ void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map)
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seq_printf(s, "%s\n", map->data.configs.group_or_pin);
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seq_printf(s, "%s\n", map->data.configs.group_or_pin);
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for (i = 0; i < map->data.configs.num_configs; i++)
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for (i = 0; i < map->data.configs.num_configs; i++) {
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seq_printf(s, "config %08lx\n", map->data.configs.configs[i]);
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seq_printf(s, "config ");
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if (confops && confops->pin_config_config_dbg_show)
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confops->pin_config_config_dbg_show(pctldev, s,
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map->data.configs.configs[i]);
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else
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seq_printf(s, "%08lx", map->data.configs.configs[i]);
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seq_printf(s, "\n");
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}
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}
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}
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void pinconf_show_setting(struct seq_file *s,
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void pinconf_show_setting(struct seq_file *s,
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@ -403,6 +418,7 @@ void pinconf_show_setting(struct seq_file *s,
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{
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{
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struct pinctrl_dev *pctldev = setting->pctldev;
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struct pinctrl_dev *pctldev = setting->pctldev;
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const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
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const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
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const struct pinconf_ops *confops = pctldev->desc->confops;
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struct pin_desc *desc;
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struct pin_desc *desc;
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int i;
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int i;
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@ -428,8 +444,15 @@ void pinconf_show_setting(struct seq_file *s,
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* FIXME: We should really get the pin controler to dump the config
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* FIXME: We should really get the pin controler to dump the config
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* values, so they can be decoded to something meaningful.
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* values, so they can be decoded to something meaningful.
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*/
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*/
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for (i = 0; i < setting->data.configs.num_configs; i++)
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for (i = 0; i < setting->data.configs.num_configs; i++) {
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seq_printf(s, " %08lx", setting->data.configs.configs[i]);
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seq_printf(s, " ");
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if (confops && confops->pin_config_config_dbg_show)
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confops->pin_config_config_dbg_show(pctldev, s,
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setting->data.configs.configs[i]);
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else
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seq_printf(s, "%08lx",
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setting->data.configs.configs[i]);
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}
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seq_printf(s, "\n");
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seq_printf(s, "\n");
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}
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}
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@ -33,6 +33,8 @@ struct seq_file;
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* per-device info for a certain pin in debugfs
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* per-device info for a certain pin in debugfs
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* @pin_config_group_dbg_show: optional debugfs display hook that will provide
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* @pin_config_group_dbg_show: optional debugfs display hook that will provide
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* per-device info for a certain group in debugfs
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* per-device info for a certain group in debugfs
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* @pin_config_config_dbg_show: optional debugfs display hook that will decode
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* and display a driver's pin configuration parameter
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*/
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*/
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struct pinconf_ops {
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struct pinconf_ops {
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#ifdef CONFIG_GENERIC_PINCONF
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#ifdef CONFIG_GENERIC_PINCONF
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@ -56,6 +58,9 @@ struct pinconf_ops {
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void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
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void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
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struct seq_file *s,
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struct seq_file *s,
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unsigned selector);
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unsigned selector);
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void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev,
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struct seq_file *s,
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unsigned long config);
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};
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};
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#endif
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#endif
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