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dm: Add Hardware Spinlock class

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This is uclass for Hardware Spinlocks.
It implements two mandatory operations: lock and unlock
and one optional relax operation.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Benjamin Gaignard
2018-11-27 13:49:50 +01:00
committed by Tom Rini
parent 3b074fb22b
commit 7f84fc670b
13 changed files with 414 additions and 0 deletions
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1
test/dm/Makefile
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@@ -19,6 +19,7 @@ obj-$(CONFIG_CLK) += clk.o
obj-$(CONFIG_DM_ETH) += eth.o
obj-$(CONFIG_FIRMWARE) += firmware.o
obj-$(CONFIG_DM_GPIO) += gpio.o
obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock.o
obj-$(CONFIG_DM_I2C) += i2c.o
obj-$(CONFIG_LED) += led.o
obj-$(CONFIG_DM_MAILBOX) += mailbox.o

40
test/dm/hwspinlock.c Normal file
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@@ -0,0 +1,40 @@
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <dm.h>
#include <hwspinlock.h>
#include <asm/state.h>
#include <asm/test.h>
#include <dm/test.h>
#include <test/ut.h>
/* Test that hwspinlock driver functions are called */
static int dm_test_hwspinlock_base(struct unit_test_state *uts)
{
struct sandbox_state *state = state_get_current();
struct hwspinlock hws;
ut_assertok(uclass_get_device(UCLASS_HWSPINLOCK, 0, &hws.dev));
ut_assertnonnull(hws.dev);
ut_asserteq(false, state->hwspinlock);
hws.id = 0;
ut_assertok(hwspinlock_lock_timeout(&hws, 1));
ut_asserteq(true, state->hwspinlock);
ut_assertok(hwspinlock_unlock(&hws));
ut_asserteq(false, state->hwspinlock);
ut_assertok(hwspinlock_lock_timeout(&hws, 1));
ut_assertok(!hwspinlock_lock_timeout(&hws, 1));
ut_assertok(hwspinlock_unlock(&hws));
ut_assertok(!hwspinlock_unlock(&hws));
return 0;
}
DM_TEST(dm_test_hwspinlock_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);