mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-30 06:53:09 +00:00
7f0f1806e3
This extends the pinctrl-sandbox driver to support pin muxing, and adds a test for that behaviour. The test is done in C and not python (like the existing tests for the pinctrl uclass) because it needs to call pinctrl_select_state. Another option could be to add a command that invokes pinctrl_select_state and then test everything in test/py/tests/test_pinmux.py. The pinctrl-sandbox driver now mimics the way that many pinmux devices work. There are two groups of pins which are muxed together, as well as four pins which are muxed individually. I have tried to test all normal paths. However, very few error cases are explicitly checked for. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <dm/pinctrl.h>
|
|
#include <dm/test.h>
|
|
#include <test/ut.h>
|
|
|
|
static int dm_test_pinmux(struct unit_test_state *uts)
|
|
{
|
|
char buf[64];
|
|
struct udevice *dev;
|
|
|
|
#define test_muxing(selector, expected) do { \
|
|
ut_assertok(pinctrl_get_pin_muxing(dev, selector, buf, sizeof(buf))); \
|
|
ut_asserteq_str(expected, (char *)&buf); \
|
|
} while (0)
|
|
|
|
ut_assertok(uclass_get_device_by_name(UCLASS_PINCTRL, "pinctrl", &dev));
|
|
test_muxing(0, "UART TX.");
|
|
test_muxing(1, "UART RX.");
|
|
test_muxing(2, "I2S SCK.");
|
|
test_muxing(3, "I2S SD.");
|
|
test_muxing(4, "I2S WS.");
|
|
test_muxing(5, "GPIO0 bias-pull-up input-disable.");
|
|
test_muxing(6, "GPIO1 drive-open-drain.");
|
|
test_muxing(7, "GPIO2 bias-pull-down input-enable.");
|
|
test_muxing(8, "GPIO3 bias-disable.");
|
|
|
|
ut_assertok(pinctrl_select_state(dev, "alternate"));
|
|
test_muxing(0, "I2C SCL drive-open-drain.");
|
|
test_muxing(1, "I2C SDA drive-open-drain.");
|
|
test_muxing(2, "SPI SCLK.");
|
|
test_muxing(3, "SPI MOSI.");
|
|
test_muxing(4, "SPI MISO.");
|
|
test_muxing(5, "SPI CS0.");
|
|
test_muxing(6, "SPI CS1.");
|
|
test_muxing(7, "GPIO2 bias-pull-down input-enable.");
|
|
test_muxing(8, "GPIO3 bias-disable.");
|
|
|
|
ut_assertok(pinctrl_select_state(dev, "0"));
|
|
test_muxing(0, "I2C SCL drive-open-drain.");
|
|
test_muxing(1, "I2C SDA drive-open-drain.");
|
|
test_muxing(2, "I2S SCK.");
|
|
test_muxing(3, "I2S SD.");
|
|
test_muxing(4, "I2S WS.");
|
|
test_muxing(5, "GPIO0 bias-pull-up input-disable.");
|
|
test_muxing(6, "GPIO1 drive-open-drain.");
|
|
test_muxing(7, "GPIO2 bias-pull-down input-enable.");
|
|
test_muxing(8, "GPIO3 bias-disable.");
|
|
|
|
return 0;
|
|
}
|
|
DM_TEST(dm_test_pinmux, UT_TESTF_SCAN_FDT);
|