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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-06-10 05:30:17 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-06-10 05:30:17 -0300
commitd635711daa98be86d4c7fd01499c34f566b54ccb (patch)
treeaa5cc3760a27c3d57146498cb82fa549547de06c /drivers/pinctrl/pinctrl-tegra.c
parentc91265cd0efb83778f015b4d4b1129bd2cfd075e (diff)
Linux-libre 4.6.2-gnu
Diffstat (limited to 'drivers/pinctrl/pinctrl-tegra.c')
-rw-r--r--drivers/pinctrl/pinctrl-tegra.c747
1 files changed, 0 insertions, 747 deletions
diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
deleted file mode 100644
index 9da4da219..000000000
--- a/drivers/pinctrl/pinctrl-tegra.c
+++ /dev/null
@@ -1,747 +0,0 @@
-/*
- * Driver for the NVIDIA Tegra pinmux
- *
- * Copyright (c) 2011-2012, NVIDIA CORPORATION. All rights reserved.
- *
- * Derived from code:
- * Copyright (C) 2010 Google, Inc.
- * Copyright (C) 2010 NVIDIA Corporation
- * Copyright (C) 2009-2011 ST-Ericsson AB
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/pinctrl/machine.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinmux.h>
-#include <linux/pinctrl/pinconf.h>
-#include <linux/slab.h>
-
-#include "core.h"
-#include "pinctrl-tegra.h"
-#include "pinctrl-utils.h"
-
-struct tegra_pmx {
- struct device *dev;
- struct pinctrl_dev *pctl;
-
- const struct tegra_pinctrl_soc_data *soc;
- const char **group_pins;
-
- int nbanks;
- void __iomem **regs;
-};
-
-static inline u32 pmx_readl(struct tegra_pmx *pmx, u32 bank, u32 reg)
-{
- return readl(pmx->regs[bank] + reg);
-}
-
-static inline void pmx_writel(struct tegra_pmx *pmx, u32 val, u32 bank, u32 reg)
-{
- writel(val, pmx->regs[bank] + reg);
-}
-
-static int tegra_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
-
- return pmx->soc->ngroups;
-}
-
-static const char *tegra_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
- unsigned group)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
-
- return pmx->soc->groups[group].name;
-}
-
-static int tegra_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
- unsigned group,
- const unsigned **pins,
- unsigned *num_pins)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
-
- *pins = pmx->soc->groups[group].pins;
- *num_pins = pmx->soc->groups[group].npins;
-
- return 0;
-}
-
-#ifdef CONFIG_DEBUG_FS
-static void tegra_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,
- struct seq_file *s,
- unsigned offset)
-{
- seq_printf(s, " %s", dev_name(pctldev->dev));
-}
-#endif
-
-static const struct cfg_param {
- const char *property;
- enum tegra_pinconf_param param;
-} cfg_params[] = {
- {"nvidia,pull", TEGRA_PINCONF_PARAM_PULL},
- {"nvidia,tristate", TEGRA_PINCONF_PARAM_TRISTATE},
- {"nvidia,enable-input", TEGRA_PINCONF_PARAM_ENABLE_INPUT},
- {"nvidia,open-drain", TEGRA_PINCONF_PARAM_OPEN_DRAIN},
- {"nvidia,lock", TEGRA_PINCONF_PARAM_LOCK},
- {"nvidia,io-reset", TEGRA_PINCONF_PARAM_IORESET},
- {"nvidia,rcv-sel", TEGRA_PINCONF_PARAM_RCV_SEL},
- {"nvidia,io-hv", TEGRA_PINCONF_PARAM_RCV_SEL},
- {"nvidia,high-speed-mode", TEGRA_PINCONF_PARAM_HIGH_SPEED_MODE},
- {"nvidia,schmitt", TEGRA_PINCONF_PARAM_SCHMITT},
- {"nvidia,low-power-mode", TEGRA_PINCONF_PARAM_LOW_POWER_MODE},
- {"nvidia,pull-down-strength", TEGRA_PINCONF_PARAM_DRIVE_DOWN_STRENGTH},
- {"nvidia,pull-up-strength", TEGRA_PINCONF_PARAM_DRIVE_UP_STRENGTH},
- {"nvidia,slew-rate-falling", TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING},
- {"nvidia,slew-rate-rising", TEGRA_PINCONF_PARAM_SLEW_RATE_RISING},
- {"nvidia,drive-type", TEGRA_PINCONF_PARAM_DRIVE_TYPE},
-};
-
-static int tegra_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev,
- struct device_node *np,
- struct pinctrl_map **map,
- unsigned *reserved_maps,
- unsigned *num_maps)
-{
- struct device *dev = pctldev->dev;
- int ret, i;
- const char *function;
- u32 val;
- unsigned long config;
- unsigned long *configs = NULL;
- unsigned num_configs = 0;
- unsigned reserve;
- struct property *prop;
- const char *group;
-
- ret = of_property_read_string(np, "nvidia,function", &function);
- if (ret < 0) {
- /* EINVAL=missing, which is fine since it's optional */
- if (ret != -EINVAL)
- dev_err(dev,
- "could not parse property nvidia,function\n");
- function = NULL;
- }
-
- for (i = 0; i < ARRAY_SIZE(cfg_params); i++) {
- ret = of_property_read_u32(np, cfg_params[i].property, &val);
- if (!ret) {
- config = TEGRA_PINCONF_PACK(cfg_params[i].param, val);
- ret = pinctrl_utils_add_config(pctldev, &configs,
- &num_configs, config);
- if (ret < 0)
- goto exit;
- /* EINVAL=missing, which is fine since it's optional */
- } else if (ret != -EINVAL) {
- dev_err(dev, "could not parse property %s\n",
- cfg_params[i].property);
- }
- }
-
- reserve = 0;
- if (function != NULL)
- reserve++;
- if (num_configs)
- reserve++;
- ret = of_property_count_strings(np, "nvidia,pins");
- if (ret < 0) {
- dev_err(dev, "could not parse property nvidia,pins\n");
- goto exit;
- }
- reserve *= ret;
-
- ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
- num_maps, reserve);
- if (ret < 0)
- goto exit;
-
- of_property_for_each_string(np, "nvidia,pins", prop, group) {
- if (function) {
- ret = pinctrl_utils_add_map_mux(pctldev, map,
- reserved_maps, num_maps, group,
- function);
- if (ret < 0)
- goto exit;
- }
-
- if (num_configs) {
- ret = pinctrl_utils_add_map_configs(pctldev, map,
- reserved_maps, num_maps, group,
- configs, num_configs,
- PIN_MAP_TYPE_CONFIGS_GROUP);
- if (ret < 0)
- goto exit;
- }
- }
-
- ret = 0;
-
-exit:
- kfree(configs);
- return ret;
-}
-
-static int tegra_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
- struct device_node *np_config,
- struct pinctrl_map **map,
- unsigned *num_maps)
-{
- unsigned reserved_maps;
- struct device_node *np;
- int ret;
-
- reserved_maps = 0;
- *map = NULL;
- *num_maps = 0;
-
- for_each_child_of_node(np_config, np) {
- ret = tegra_pinctrl_dt_subnode_to_map(pctldev, np, map,
- &reserved_maps, num_maps);
- if (ret < 0) {
- pinctrl_utils_dt_free_map(pctldev, *map,
- *num_maps);
- of_node_put(np);
- return ret;
- }
- }
-
- return 0;
-}
-
-static const struct pinctrl_ops tegra_pinctrl_ops = {
- .get_groups_count = tegra_pinctrl_get_groups_count,
- .get_group_name = tegra_pinctrl_get_group_name,
- .get_group_pins = tegra_pinctrl_get_group_pins,
-#ifdef CONFIG_DEBUG_FS
- .pin_dbg_show = tegra_pinctrl_pin_dbg_show,
-#endif
- .dt_node_to_map = tegra_pinctrl_dt_node_to_map,
- .dt_free_map = pinctrl_utils_dt_free_map,
-};
-
-static int tegra_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
-
- return pmx->soc->nfunctions;
-}
-
-static const char *tegra_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
- unsigned function)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
-
- return pmx->soc->functions[function].name;
-}
-
-static int tegra_pinctrl_get_func_groups(struct pinctrl_dev *pctldev,
- unsigned function,
- const char * const **groups,
- unsigned * const num_groups)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
-
- *groups = pmx->soc->functions[function].groups;
- *num_groups = pmx->soc->functions[function].ngroups;
-
- return 0;
-}
-
-static int tegra_pinctrl_set_mux(struct pinctrl_dev *pctldev,
- unsigned function,
- unsigned group)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- const struct tegra_pingroup *g;
- int i;
- u32 val;
-
- g = &pmx->soc->groups[group];
-
- if (WARN_ON(g->mux_reg < 0))
- return -EINVAL;
-
- for (i = 0; i < ARRAY_SIZE(g->funcs); i++) {
- if (g->funcs[i] == function)
- break;
- }
- if (WARN_ON(i == ARRAY_SIZE(g->funcs)))
- return -EINVAL;
-
- val = pmx_readl(pmx, g->mux_bank, g->mux_reg);
- val &= ~(0x3 << g->mux_bit);
- val |= i << g->mux_bit;
- pmx_writel(pmx, val, g->mux_bank, g->mux_reg);
-
- return 0;
-}
-
-static const struct pinmux_ops tegra_pinmux_ops = {
- .get_functions_count = tegra_pinctrl_get_funcs_count,
- .get_function_name = tegra_pinctrl_get_func_name,
- .get_function_groups = tegra_pinctrl_get_func_groups,
- .set_mux = tegra_pinctrl_set_mux,
-};
-
-static int tegra_pinconf_reg(struct tegra_pmx *pmx,
- const struct tegra_pingroup *g,
- enum tegra_pinconf_param param,
- bool report_err,
- s8 *bank, s16 *reg, s8 *bit, s8 *width)
-{
- switch (param) {
- case TEGRA_PINCONF_PARAM_PULL:
- *bank = g->pupd_bank;
- *reg = g->pupd_reg;
- *bit = g->pupd_bit;
- *width = 2;
- break;
- case TEGRA_PINCONF_PARAM_TRISTATE:
- *bank = g->tri_bank;
- *reg = g->tri_reg;
- *bit = g->tri_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_ENABLE_INPUT:
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- *bit = g->einput_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_OPEN_DRAIN:
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- *bit = g->odrain_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_LOCK:
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- *bit = g->lock_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_IORESET:
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- *bit = g->ioreset_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_RCV_SEL:
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- *bit = g->rcv_sel_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_HIGH_SPEED_MODE:
- if (pmx->soc->hsm_in_mux) {
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- } else {
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- }
- *bit = g->hsm_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_SCHMITT:
- if (pmx->soc->schmitt_in_mux) {
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- } else {
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- }
- *bit = g->schmitt_bit;
- *width = 1;
- break;
- case TEGRA_PINCONF_PARAM_LOW_POWER_MODE:
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- *bit = g->lpmd_bit;
- *width = 2;
- break;
- case TEGRA_PINCONF_PARAM_DRIVE_DOWN_STRENGTH:
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- *bit = g->drvdn_bit;
- *width = g->drvdn_width;
- break;
- case TEGRA_PINCONF_PARAM_DRIVE_UP_STRENGTH:
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- *bit = g->drvup_bit;
- *width = g->drvup_width;
- break;
- case TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING:
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- *bit = g->slwf_bit;
- *width = g->slwf_width;
- break;
- case TEGRA_PINCONF_PARAM_SLEW_RATE_RISING:
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- *bit = g->slwr_bit;
- *width = g->slwr_width;
- break;
- case TEGRA_PINCONF_PARAM_DRIVE_TYPE:
- if (pmx->soc->drvtype_in_mux) {
- *bank = g->mux_bank;
- *reg = g->mux_reg;
- } else {
- *bank = g->drv_bank;
- *reg = g->drv_reg;
- }
- *bit = g->drvtype_bit;
- *width = 2;
- break;
- default:
- dev_err(pmx->dev, "Invalid config param %04x\n", param);
- return -ENOTSUPP;
- }
-
- if (*reg < 0 || *bit > 31) {
- if (report_err) {
- const char *prop = "unknown";
- int i;
-
- for (i = 0; i < ARRAY_SIZE(cfg_params); i++) {
- if (cfg_params[i].param == param) {
- prop = cfg_params[i].property;
- break;
- }
- }
-
- dev_err(pmx->dev,
- "Config param %04x (%s) not supported on group %s\n",
- param, prop, g->name);
- }
- return -ENOTSUPP;
- }
-
- return 0;
-}
-
-static int tegra_pinconf_get(struct pinctrl_dev *pctldev,
- unsigned pin, unsigned long *config)
-{
- dev_err(pctldev->dev, "pin_config_get op not supported\n");
- return -ENOTSUPP;
-}
-
-static int tegra_pinconf_set(struct pinctrl_dev *pctldev,
- unsigned pin, unsigned long *configs,
- unsigned num_configs)
-{
- dev_err(pctldev->dev, "pin_config_set op not supported\n");
- return -ENOTSUPP;
-}
-
-static int tegra_pinconf_group_get(struct pinctrl_dev *pctldev,
- unsigned group, unsigned long *config)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- enum tegra_pinconf_param param = TEGRA_PINCONF_UNPACK_PARAM(*config);
- u16 arg;
- const struct tegra_pingroup *g;
- int ret;
- s8 bank, bit, width;
- s16 reg;
- u32 val, mask;
-
- g = &pmx->soc->groups[group];
-
- ret = tegra_pinconf_reg(pmx, g, param, true, &bank, &reg, &bit,
- &width);
- if (ret < 0)
- return ret;
-
- val = pmx_readl(pmx, bank, reg);
- mask = (1 << width) - 1;
- arg = (val >> bit) & mask;
-
- *config = TEGRA_PINCONF_PACK(param, arg);
-
- return 0;
-}
-
-static int tegra_pinconf_group_set(struct pinctrl_dev *pctldev,
- unsigned group, unsigned long *configs,
- unsigned num_configs)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- enum tegra_pinconf_param param;
- u16 arg;
- const struct tegra_pingroup *g;
- int ret, i;
- s8 bank, bit, width;
- s16 reg;
- u32 val, mask;
-
- g = &pmx->soc->groups[group];
-
- for (i = 0; i < num_configs; i++) {
- param = TEGRA_PINCONF_UNPACK_PARAM(configs[i]);
- arg = TEGRA_PINCONF_UNPACK_ARG(configs[i]);
-
- ret = tegra_pinconf_reg(pmx, g, param, true, &bank, &reg, &bit,
- &width);
- if (ret < 0)
- return ret;
-
- val = pmx_readl(pmx, bank, reg);
-
- /* LOCK can't be cleared */
- if (param == TEGRA_PINCONF_PARAM_LOCK) {
- if ((val & BIT(bit)) && !arg) {
- dev_err(pctldev->dev, "LOCK bit cannot be cleared\n");
- return -EINVAL;
- }
- }
-
- /* Special-case Boolean values; allow any non-zero as true */
- if (width == 1)
- arg = !!arg;
-
- /* Range-check user-supplied value */
- mask = (1 << width) - 1;
- if (arg & ~mask) {
- dev_err(pctldev->dev,
- "config %lx: %x too big for %d bit register\n",
- configs[i], arg, width);
- return -EINVAL;
- }
-
- /* Update register */
- val &= ~(mask << bit);
- val |= arg << bit;
- pmx_writel(pmx, val, bank, reg);
- } /* for each config */
-
- return 0;
-}
-
-#ifdef CONFIG_DEBUG_FS
-static void tegra_pinconf_dbg_show(struct pinctrl_dev *pctldev,
- struct seq_file *s, unsigned offset)
-{
-}
-
-static const char *strip_prefix(const char *s)
-{
- const char *comma = strchr(s, ',');
- if (!comma)
- return s;
-
- return comma + 1;
-}
-
-static void tegra_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
- struct seq_file *s, unsigned group)
-{
- struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- const struct tegra_pingroup *g;
- int i, ret;
- s8 bank, bit, width;
- s16 reg;
- u32 val;
-
- g = &pmx->soc->groups[group];
-
- for (i = 0; i < ARRAY_SIZE(cfg_params); i++) {
- ret = tegra_pinconf_reg(pmx, g, cfg_params[i].param, false,
- &bank, &reg, &bit, &width);
- if (ret < 0)
- continue;
-
- val = pmx_readl(pmx, bank, reg);
- val >>= bit;
- val &= (1 << width) - 1;
-
- seq_printf(s, "\n\t%s=%u",
- strip_prefix(cfg_params[i].property), val);
- }
-}
-
-static void tegra_pinconf_config_dbg_show(struct pinctrl_dev *pctldev,
- struct seq_file *s,
- unsigned long config)
-{
- enum tegra_pinconf_param param = TEGRA_PINCONF_UNPACK_PARAM(config);
- u16 arg = TEGRA_PINCONF_UNPACK_ARG(config);
- const char *pname = "unknown";
- int i;
-
- for (i = 0; i < ARRAY_SIZE(cfg_params); i++) {
- if (cfg_params[i].param == param) {
- pname = cfg_params[i].property;
- break;
- }
- }
-
- seq_printf(s, "%s=%d", strip_prefix(pname), arg);
-}
-#endif
-
-static const struct pinconf_ops tegra_pinconf_ops = {
- .pin_config_get = tegra_pinconf_get,
- .pin_config_set = tegra_pinconf_set,
- .pin_config_group_get = tegra_pinconf_group_get,
- .pin_config_group_set = tegra_pinconf_group_set,
-#ifdef CONFIG_DEBUG_FS
- .pin_config_dbg_show = tegra_pinconf_dbg_show,
- .pin_config_group_dbg_show = tegra_pinconf_group_dbg_show,
- .pin_config_config_dbg_show = tegra_pinconf_config_dbg_show,
-#endif
-};
-
-static struct pinctrl_gpio_range tegra_pinctrl_gpio_range = {
- .name = "Tegra GPIOs",
- .id = 0,
- .base = 0,
-};
-
-static struct pinctrl_desc tegra_pinctrl_desc = {
- .pctlops = &tegra_pinctrl_ops,
- .pmxops = &tegra_pinmux_ops,
- .confops = &tegra_pinconf_ops,
- .owner = THIS_MODULE,
-};
-
-static bool gpio_node_has_range(void)
-{
- struct device_node *np;
- bool has_prop = false;
-
- np = of_find_compatible_node(NULL, NULL, "nvidia,tegra30-gpio");
- if (!np)
- return has_prop;
-
- has_prop = of_find_property(np, "gpio-ranges", NULL);
-
- of_node_put(np);
-
- return has_prop;
-}
-
-int tegra_pinctrl_probe(struct platform_device *pdev,
- const struct tegra_pinctrl_soc_data *soc_data)
-{
- struct tegra_pmx *pmx;
- struct resource *res;
- int i;
- const char **group_pins;
- int fn, gn, gfn;
-
- pmx = devm_kzalloc(&pdev->dev, sizeof(*pmx), GFP_KERNEL);
- if (!pmx) {
- dev_err(&pdev->dev, "Can't alloc tegra_pmx\n");
- return -ENOMEM;
- }
- pmx->dev = &pdev->dev;
- pmx->soc = soc_data;
-
- /*
- * Each mux group will appear in 4 functions' list of groups.
- * This over-allocates slightly, since not all groups are mux groups.
- */
- pmx->group_pins = devm_kzalloc(&pdev->dev,
- soc_data->ngroups * 4 * sizeof(*pmx->group_pins),
- GFP_KERNEL);
- if (!pmx->group_pins)
- return -ENOMEM;
-
- group_pins = pmx->group_pins;
- for (fn = 0; fn < soc_data->nfunctions; fn++) {
- struct tegra_function *func = &soc_data->functions[fn];
-
- func->groups = group_pins;
-
- for (gn = 0; gn < soc_data->ngroups; gn++) {
- const struct tegra_pingroup *g = &soc_data->groups[gn];
-
- if (g->mux_reg == -1)
- continue;
-
- for (gfn = 0; gfn < 4; gfn++)
- if (g->funcs[gfn] == fn)
- break;
- if (gfn == 4)
- continue;
-
- BUG_ON(group_pins - pmx->group_pins >=
- soc_data->ngroups * 4);
- *group_pins++ = g->name;
- func->ngroups++;
- }
- }
-
- tegra_pinctrl_gpio_range.npins = pmx->soc->ngpios;
- tegra_pinctrl_desc.name = dev_name(&pdev->dev);
- tegra_pinctrl_desc.pins = pmx->soc->pins;
- tegra_pinctrl_desc.npins = pmx->soc->npins;
-
- for (i = 0; ; i++) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, i);
- if (!res)
- break;
- }
- pmx->nbanks = i;
-
- pmx->regs = devm_kzalloc(&pdev->dev, pmx->nbanks * sizeof(*pmx->regs),
- GFP_KERNEL);
- if (!pmx->regs) {
- dev_err(&pdev->dev, "Can't alloc regs pointer\n");
- return -ENOMEM;
- }
-
- for (i = 0; i < pmx->nbanks; i++) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, i);
- pmx->regs[i] = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(pmx->regs[i]))
- return PTR_ERR(pmx->regs[i]);
- }
-
- pmx->pctl = pinctrl_register(&tegra_pinctrl_desc, &pdev->dev, pmx);
- if (IS_ERR(pmx->pctl)) {
- dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
- return PTR_ERR(pmx->pctl);
- }
-
- if (!gpio_node_has_range())
- pinctrl_add_gpio_range(pmx->pctl, &tegra_pinctrl_gpio_range);
-
- platform_set_drvdata(pdev, pmx);
-
- dev_dbg(&pdev->dev, "Probed Tegra pinctrl driver\n");
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(tegra_pinctrl_probe);
-
-int tegra_pinctrl_remove(struct platform_device *pdev)
-{
- struct tegra_pmx *pmx = platform_get_drvdata(pdev);
-
- pinctrl_unregister(pmx->pctl);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(tegra_pinctrl_remove);