u-boot-brain/test/dm/regmap.c
Masahiro Yamada 8c1de5e08b regmap: clean up regmap allocation
Putting zero length array at the end of struct is a common technique
to embed arbitrary length of members.  There is no good reason to let
regmap_alloc_count() branch by "if (count <= 1)".

As far as I understood the code, regmap->base is an alias of
regmap->ranges[0].start, but it is not helpful but make the code
just ugly.

Rename regmap_alloc_count() to regmap_alloc() because the _count
suffix seems pointless.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: fixup cpu_info-rcar.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 15:15:27 -04:00

77 lines
2.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Google, Inc
*/
#include <common.h>
#include <dm.h>
#include <mapmem.h>
#include <regmap.h>
#include <syscon.h>
#include <asm/test.h>
#include <dm/test.h>
#include <test/ut.h>
/* Base test of register maps */
static int dm_test_regmap_base(struct unit_test_state *uts)
{
struct udevice *dev;
struct regmap *map;
int i;
ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
map = syscon_get_regmap(dev);
ut_assertok_ptr(map);
ut_asserteq(1, map->range_count);
ut_asserteq(0x10, map->ranges[0].start);
ut_asserteq(4, map->ranges[0].size);
ut_asserteq(0x10, map_to_sysmem(regmap_get_range(map, 0)));
ut_assertok(uclass_get_device(UCLASS_SYSCON, 1, &dev));
map = syscon_get_regmap(dev);
ut_assertok_ptr(map);
ut_asserteq(4, map->range_count);
ut_asserteq(0x20, map->ranges[0].start);
for (i = 0; i < 4; i++) {
const unsigned long addr = 0x20 + 8 * i;
ut_asserteq(addr, map->ranges[i].start);
ut_asserteq(5 + i, map->ranges[i].size);
ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
}
/* Check that we can't pretend a different device is a syscon */
ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
map = syscon_get_regmap(dev);
ut_asserteq_ptr(ERR_PTR(-ENOEXEC), map);
return 0;
}
DM_TEST(dm_test_regmap_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test we can access a regmap through syscon */
static int dm_test_regmap_syscon(struct unit_test_state *uts)
{
struct regmap *map;
map = syscon_get_regmap_by_driver_data(SYSCON0);
ut_assertok_ptr(map);
ut_asserteq(1, map->range_count);
map = syscon_get_regmap_by_driver_data(SYSCON1);
ut_assertok_ptr(map);
ut_asserteq(4, map->range_count);
map = syscon_get_regmap_by_driver_data(SYSCON_COUNT);
ut_asserteq_ptr(ERR_PTR(-ENODEV), map);
ut_asserteq(0x10, map_to_sysmem(syscon_get_first_range(SYSCON0)));
ut_asserteq(0x20, map_to_sysmem(syscon_get_first_range(SYSCON1)));
ut_asserteq_ptr(ERR_PTR(-ENODEV),
syscon_get_first_range(SYSCON_COUNT));
return 0;
}
DM_TEST(dm_test_regmap_syscon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);