Revert "[media] mfd: Add chip properties handling code for SI476X MFD"

This reverts commit a118e9c122969a924061b48b6cc6bb73ccc8de4c.

Requested-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/mfd/si476x-prop.c

@@ -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);