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path: root/drivers/mfd/si476x-prop.c
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Diffstat (limited to 'drivers/mfd/si476x-prop.c')
-rw-r--r--drivers/mfd/si476x-prop.c242
1 files changed, 0 insertions, 242 deletions
diff --git a/drivers/mfd/si476x-prop.c b/drivers/mfd/si476x-prop.c
deleted file mode 100644
index d1f548aac0cf..000000000000
--- a/drivers/mfd/si476x-prop.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * drivers/mfd/si476x-prop.c -- Subroutines to access
- * properties of si476x chips
- *
- * Copyright (C) 2012 Innovative Converged Devices(ICD)
- * Copyright (C) 2013 Andrey Smirnov
- *
- * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that 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/module.h>
-
-#include <media/si476x.h>
-#include <linux/mfd/si476x-core.h>
-
-struct si476x_property_range {
- u16 low, high;
-};
-
-static bool si476x_core_element_is_in_array(u16 element,
- const u16 array[],
- size_t size)
-{
- int i;
-
- for (i = 0; i < size; i++)
- if (element == array[i])
- return true;
-
- return false;
-}
-
-static bool si476x_core_element_is_in_range(u16 element,
- const struct si476x_property_range range[],
- size_t size)
-{
- int i;
-
- for (i = 0; i < size; i++)
- if (element <= range[i].high && element >= range[i].low)
- return true;
-
- return false;
-}
-
-static bool si476x_core_is_valid_property_a10(struct si476x_core *core,
- u16 property)
-{
- static const u16 valid_properties[] = {
- 0x0000,
- 0x0500, 0x0501,
- 0x0600,
- 0x0709, 0x070C, 0x070D, 0x70E, 0x710,
- 0x0718,
- 0x1207, 0x1208,
- 0x2007,
- 0x2300,
- };
-
- static const struct si476x_property_range valid_ranges[] = {
- { 0x0200, 0x0203 },
- { 0x0300, 0x0303 },
- { 0x0400, 0x0404 },
- { 0x0700, 0x0707 },
- { 0x1100, 0x1102 },
- { 0x1200, 0x1204 },
- { 0x1300, 0x1306 },
- { 0x2000, 0x2005 },
- { 0x2100, 0x2104 },
- { 0x2106, 0x2106 },
- { 0x2200, 0x220E },
- { 0x3100, 0x3104 },
- { 0x3207, 0x320F },
- { 0x3300, 0x3304 },
- { 0x3500, 0x3517 },
- { 0x3600, 0x3617 },
- { 0x3700, 0x3717 },
- { 0x4000, 0x4003 },
- };
-
- return si476x_core_element_is_in_range(property, valid_ranges,
- ARRAY_SIZE(valid_ranges)) ||
- si476x_core_element_is_in_array(property, valid_properties,
- ARRAY_SIZE(valid_properties));
-}
-
-static bool si476x_core_is_valid_property_a20(struct si476x_core *core,
- u16 property)
-{
- static const u16 valid_properties[] = {
- 0x071B,
- 0x1006,
- 0x2210,
- 0x3401,
- };
-
- static const struct si476x_property_range valid_ranges[] = {
- { 0x2215, 0x2219 },
- };
-
- return si476x_core_is_valid_property_a10(core, property) ||
- si476x_core_element_is_in_range(property, valid_ranges,
- ARRAY_SIZE(valid_ranges)) ||
- si476x_core_element_is_in_array(property, valid_properties,
- ARRAY_SIZE(valid_properties));
-}
-
-static bool si476x_core_is_valid_property_a30(struct si476x_core *core,
- u16 property)
-{
- static const u16 valid_properties[] = {
- 0x071C, 0x071D,
- 0x1007, 0x1008,
- 0x220F, 0x2214,
- 0x2301,
- 0x3105, 0x3106,
- 0x3402,
- };
-
- static const struct si476x_property_range valid_ranges[] = {
- { 0x0405, 0x0411 },
- { 0x2008, 0x200B },
- { 0x2220, 0x2223 },
- { 0x3100, 0x3106 },
- };
-
- return si476x_core_is_valid_property_a20(core, property) ||
- si476x_core_element_is_in_range(property, valid_ranges,
- ARRAY_SIZE(valid_ranges)) ||
- si476x_core_element_is_in_array(property, valid_properties,
- ARRAY_SIZE(valid_properties));
-}
-
-typedef bool (*valid_property_pred_t) (struct si476x_core *, u16);
-
-static bool si476x_core_is_valid_property(struct si476x_core *core,
- u16 property)
-{
- static const valid_property_pred_t is_valid_property[] = {
- [SI476X_REVISION_A10] = si476x_core_is_valid_property_a10,
- [SI476X_REVISION_A20] = si476x_core_is_valid_property_a20,
- [SI476X_REVISION_A30] = si476x_core_is_valid_property_a30,
- };
-
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
- return is_valid_property[core->revision](core, property);
-}
-
-
-static bool si476x_core_is_readonly_property(struct si476x_core *core,
- u16 property)
-{
- BUG_ON(core->revision > SI476X_REVISION_A30 ||
- core->revision == -1);
-
- switch (core->revision) {
- case SI476X_REVISION_A10:
- return (property == 0x3200);
- case SI476X_REVISION_A20:
- return (property == 0x1006 ||
- property == 0x2210 ||
- property == 0x3200);
- case SI476X_REVISION_A30:
- return false;
- }
-
- return false;
-}
-
-static bool si476x_core_regmap_readable_register(struct device *dev,
- unsigned int reg)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct si476x_core *core = i2c_get_clientdata(client);
-
- return si476x_core_is_valid_property(core, (u16) reg);
-
-}
-
-static bool si476x_core_regmap_writable_register(struct device *dev,
- unsigned int reg)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct si476x_core *core = i2c_get_clientdata(client);
-
- return si476x_core_is_valid_property(core, (u16) reg) &&
- !si476x_core_is_readonly_property(core, (u16) reg);
-}
-
-
-static int si476x_core_regmap_write(void *context, unsigned int reg,
- unsigned int val)
-{
- return si476x_core_cmd_set_property(context, reg, val);
-}
-
-static int si476x_core_regmap_read(void *context, unsigned int reg,
- unsigned *val)
-{
- struct si476x_core *core = context;
- int err;
-
- err = si476x_core_cmd_get_property(core, reg);
- if (err < 0)
- return err;
-
- *val = err;
-
- return 0;
-}
-
-
-static const struct regmap_config si476x_regmap_config = {
- .reg_bits = 16,
- .val_bits = 16,
-
- .max_register = 0x4003,
-
- .writeable_reg = si476x_core_regmap_writable_register,
- .readable_reg = si476x_core_regmap_readable_register,
-
- .reg_read = si476x_core_regmap_read,
- .reg_write = si476x_core_regmap_write,
-
- .cache_type = REGCACHE_RBTREE,
-};
-
-struct regmap *devm_regmap_init_si476x(struct si476x_core *core)
-{
- return devm_regmap_init(&core->client->dev, NULL,
- core, &si476x_regmap_config);
-}
-EXPORT_SYMBOL_GPL(devm_regmap_init_si476x);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-12 04:50:41 +0300