diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/pinctrl/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-single.c | 156 |
2 files changed, 12 insertions, 146 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 7e964284b2c9..d2fbcea98205 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -166,8 +166,8 @@ config PINCTRL_ROCKCHIP config PINCTRL_SINGLE tristate "One-register-per-pin type device tree based pinctrl driver" depends on OF + select GENERIC_PINCTRL_GROUPS select PINMUX - select PINCONF select GENERIC_PINCONF help This selects the device tree based generic pinctrl driver. diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 25edadf75b43..5e7a37ddef8e 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -38,22 +38,6 @@ #define PCS_OFF_DISABLED ~0U /** - * struct pcs_pingroup - pingroups for a function - * @np: pingroup device node pointer - * @name: pingroup name - * @gpins: array of the pins in the group - * @ngpins: number of pins in the group - * @node: list node - */ -struct pcs_pingroup { - struct device_node *np; - const char *name; - int *gpins; - int ngpins; - struct list_head node; -}; - -/** * struct pcs_func_vals - mux function register offset and value pair * @reg: register virtual address * @val: register value @@ -176,15 +160,12 @@ struct pcs_soc_data { * @bits_per_mux: number of bits per mux * @bits_per_pin: number of bits per pin * @pins: physical pins on the SoC - * @pgtree: pingroup index radix tree * @ftree: function index radix tree - * @pingroups: list of pingroups * @functions: list of functions * @gpiofuncs: list of gpio functions * @irqs: list of interrupt registers * @chip: chip container for this instance * @domain: IRQ domain for this instance - * @ngroups: number of pingroups * @nfuncs: number of functions * @desc: pin controller descriptor * @read: register read function to use @@ -213,15 +194,12 @@ struct pcs_device { bool bits_per_mux; unsigned bits_per_pin; struct pcs_data pins; - struct radix_tree_root pgtree; struct radix_tree_root ftree; - struct list_head pingroups; struct list_head functions; struct list_head gpiofuncs; struct list_head irqs; struct irq_chip chip; struct irq_domain *domain; - unsigned ngroups; unsigned nfuncs; struct pinctrl_desc desc; unsigned (*read)(void __iomem *reg); @@ -288,54 +266,6 @@ static void __maybe_unused pcs_writel(unsigned val, void __iomem *reg) writel(val, reg); } -static int pcs_get_groups_count(struct pinctrl_dev *pctldev) -{ - struct pcs_device *pcs; - - pcs = pinctrl_dev_get_drvdata(pctldev); - - return pcs->ngroups; -} - -static const char *pcs_get_group_name(struct pinctrl_dev *pctldev, - unsigned gselector) -{ - struct pcs_device *pcs; - struct pcs_pingroup *group; - - pcs = pinctrl_dev_get_drvdata(pctldev); - group = radix_tree_lookup(&pcs->pgtree, gselector); - if (!group) { - dev_err(pcs->dev, "%s could not find pingroup%i\n", - __func__, gselector); - return NULL; - } - - return group->name; -} - -static int pcs_get_group_pins(struct pinctrl_dev *pctldev, - unsigned gselector, - const unsigned **pins, - unsigned *npins) -{ - struct pcs_device *pcs; - struct pcs_pingroup *group; - - pcs = pinctrl_dev_get_drvdata(pctldev); - group = radix_tree_lookup(&pcs->pgtree, gselector); - if (!group) { - dev_err(pcs->dev, "%s could not find pingroup%i\n", - __func__, gselector); - return -EINVAL; - } - - *pins = group->gpins; - *npins = group->ngpins; - - return 0; -} - static void pcs_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned pin) @@ -369,9 +299,9 @@ static int pcs_dt_node_to_map(struct pinctrl_dev *pctldev, struct pinctrl_map **map, unsigned *num_maps); static const struct pinctrl_ops pcs_pinctrl_ops = { - .get_groups_count = pcs_get_groups_count, - .get_group_name = pcs_get_group_name, - .get_group_pins = pcs_get_group_pins, + .get_groups_count = pinctrl_generic_get_group_count, + .get_group_name = pinctrl_generic_get_group_name, + .get_group_pins = pinctrl_generic_get_group_pins, .pin_dbg_show = pcs_pin_dbg_show, .dt_node_to_map = pcs_dt_node_to_map, .dt_free_map = pcs_dt_free_map, @@ -685,7 +615,7 @@ static int pcs_pinconf_group_get(struct pinctrl_dev *pctldev, unsigned npins, old = 0; int i, ret; - ret = pcs_get_group_pins(pctldev, group, &pins, &npins); + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); if (ret) return ret; for (i = 0; i < npins; i++) { @@ -707,7 +637,7 @@ static int pcs_pinconf_group_set(struct pinctrl_dev *pctldev, unsigned npins; int i, ret; - ret = pcs_get_group_pins(pctldev, group, &pins, &npins); + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); if (ret) return ret; for (i = 0; i < npins; i++) { @@ -897,40 +827,6 @@ static void pcs_remove_function(struct pcs_device *pcs, } /** - * pcs_add_pingroup() - add a pingroup to the pingroup list - * @pcs: pcs driver instance - * @np: device node of the mux entry - * @name: name of the pingroup - * @gpins: array of the pins that belong to the group - * @ngpins: number of pins in the group - */ -static int pcs_add_pingroup(struct pcs_device *pcs, - struct device_node *np, - const char *name, - int *gpins, - int ngpins) -{ - struct pcs_pingroup *pingroup; - - pingroup = devm_kzalloc(pcs->dev, sizeof(*pingroup), GFP_KERNEL); - if (!pingroup) - return -ENOMEM; - - pingroup->name = name; - pingroup->np = np; - pingroup->gpins = gpins; - pingroup->ngpins = ngpins; - - mutex_lock(&pcs->mutex); - list_add_tail(&pingroup->node, &pcs->pingroups); - radix_tree_insert(&pcs->pgtree, pcs->ngroups, pingroup); - pcs->ngroups++; - mutex_unlock(&pcs->mutex); - - return 0; -} - -/** * pcs_get_pin_by_offset() - get a pin index based on the register offset * @pcs: pcs driver instance * @offset: register offset from the base @@ -1100,10 +996,9 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np, return 0; } -static void pcs_free_pingroups(struct pcs_device *pcs); - /** * smux_parse_one_pinctrl_entry() - parses a device tree mux entry + * @pctldev: pin controller device * @pcs: pinctrl driver instance * @np: device node of the mux entry * @map: map entry @@ -1186,7 +1081,7 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs, goto free_pins; } - res = pcs_add_pingroup(pcs, np, np->name, pins, found); + res = pinctrl_generic_add_group(pcs->pctl, np->name, pins, found, pcs); if (res < 0) goto free_function; @@ -1205,7 +1100,7 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs, return 0; free_pingroups: - pcs_free_pingroups(pcs); + pinctrl_generic_remove_last_group(pcs->pctl); *num_maps = 1; free_function: pcs_remove_function(pcs, function); @@ -1320,7 +1215,7 @@ static int pcs_parse_bits_in_pinctrl_entry(struct pcs_device *pcs, goto free_pins; } - res = pcs_add_pingroup(pcs, np, np->name, pins, found); + res = pinctrl_generic_add_group(pcs->pctl, np->name, pins, found, pcs); if (res < 0) goto free_function; @@ -1337,7 +1232,7 @@ static int pcs_parse_bits_in_pinctrl_entry(struct pcs_device *pcs, return 0; free_pingroups: - pcs_free_pingroups(pcs); + pinctrl_generic_remove_last_group(pcs->pctl); *num_maps = 1; free_function: pcs_remove_function(pcs, function); @@ -1436,33 +1331,6 @@ static void pcs_free_funcs(struct pcs_device *pcs) } /** - * pcs_free_pingroups() - free memory used by pingroups - * @pcs: pcs driver instance - */ -static void pcs_free_pingroups(struct pcs_device *pcs) -{ - struct list_head *pos, *tmp; - int i; - - mutex_lock(&pcs->mutex); - for (i = 0; i < pcs->ngroups; i++) { - struct pcs_pingroup *pingroup; - - pingroup = radix_tree_lookup(&pcs->pgtree, i); - if (!pingroup) - continue; - radix_tree_delete(&pcs->pgtree, i); - } - list_for_each_safe(pos, tmp, &pcs->pingroups) { - struct pcs_pingroup *pingroup; - - pingroup = list_entry(pos, struct pcs_pingroup, node); - list_del(&pingroup->node); - } - mutex_unlock(&pcs->mutex); -} - -/** * pcs_irq_free() - free interrupt * @pcs: pcs driver instance */ @@ -1491,7 +1359,7 @@ static void pcs_free_resources(struct pcs_device *pcs) pcs_irq_free(pcs); pinctrl_unregister(pcs->pctl); pcs_free_funcs(pcs); - pcs_free_pingroups(pcs); + #if IS_BUILTIN(CONFIG_PINCTRL_SINGLE) if (pcs->missing_nr_pinctrl_cells) of_remove_property(pcs->np, pcs->missing_nr_pinctrl_cells); @@ -1885,7 +1753,6 @@ static int pcs_probe(struct platform_device *pdev) pcs->np = np; raw_spin_lock_init(&pcs->lock); mutex_init(&pcs->mutex); - INIT_LIST_HEAD(&pcs->pingroups); INIT_LIST_HEAD(&pcs->functions); INIT_LIST_HEAD(&pcs->gpiofuncs); soc = match->data; @@ -1947,7 +1814,6 @@ static int pcs_probe(struct platform_device *pdev) return -ENODEV; } - INIT_RADIX_TREE(&pcs->pgtree, GFP_KERNEL); INIT_RADIX_TREE(&pcs->ftree, GFP_KERNEL); platform_set_drvdata(pdev, pcs); |