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      1 // SPDX-License-Identifier: GPL-2.0+
      2 /*
      3  * Copyright (C) 2015 Google, Inc
      4  */
      5 
      6 #include <common.h>
      7 #include <dm.h>
      8 #include <asm/clk.h>
      9 #include <dm/test.h>
     10 #include <linux/err.h>
     11 #include <test/ut.h>
     12 
     13 static int dm_test_clk(struct unit_test_state *uts)
     14 {
     15 	struct udevice *dev_fixed, *dev_clk, *dev_test;
     16 	ulong rate;
     17 
     18 	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-fixed",
     19 					      &dev_fixed));
     20 
     21 	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-sbox",
     22 					      &dev_clk));
     23 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
     24 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
     25 	ut_asserteq(0, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_SPI));
     26 	ut_asserteq(0, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_I2C));
     27 
     28 	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "clk-test",
     29 					      &dev_test));
     30 	ut_assertok(sandbox_clk_test_get(dev_test));
     31 
     32 	ut_asserteq(1234,
     33 		    sandbox_clk_test_get_rate(dev_test,
     34 					      SANDBOX_CLK_TEST_ID_FIXED));
     35 	ut_asserteq(0, sandbox_clk_test_get_rate(dev_test,
     36 						 SANDBOX_CLK_TEST_ID_SPI));
     37 	ut_asserteq(0, sandbox_clk_test_get_rate(dev_test,
     38 						 SANDBOX_CLK_TEST_ID_I2C));
     39 
     40 	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_FIXED,
     41 					 12345);
     42 	ut_assert(IS_ERR_VALUE(rate));
     43 	rate = sandbox_clk_test_get_rate(dev_test, SANDBOX_CLK_TEST_ID_FIXED);
     44 	ut_asserteq(1234, rate);
     45 
     46 	ut_asserteq(0, sandbox_clk_test_set_rate(dev_test,
     47 						 SANDBOX_CLK_TEST_ID_SPI,
     48 						 1000));
     49 	ut_asserteq(0, sandbox_clk_test_set_rate(dev_test,
     50 						 SANDBOX_CLK_TEST_ID_I2C,
     51 						 2000));
     52 
     53 	ut_asserteq(1000, sandbox_clk_test_get_rate(dev_test,
     54 						    SANDBOX_CLK_TEST_ID_SPI));
     55 	ut_asserteq(2000, sandbox_clk_test_get_rate(dev_test,
     56 						    SANDBOX_CLK_TEST_ID_I2C));
     57 
     58 	ut_asserteq(1000, sandbox_clk_test_set_rate(dev_test,
     59 						    SANDBOX_CLK_TEST_ID_SPI,
     60 						    10000));
     61 	ut_asserteq(2000, sandbox_clk_test_set_rate(dev_test,
     62 						    SANDBOX_CLK_TEST_ID_I2C,
     63 						    20000));
     64 
     65 	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_SPI, 0);
     66 	ut_assert(IS_ERR_VALUE(rate));
     67 	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_I2C, 0);
     68 	ut_assert(IS_ERR_VALUE(rate));
     69 
     70 	ut_asserteq(10000, sandbox_clk_test_get_rate(dev_test,
     71 						     SANDBOX_CLK_TEST_ID_SPI));
     72 	ut_asserteq(20000, sandbox_clk_test_get_rate(dev_test,
     73 						     SANDBOX_CLK_TEST_ID_I2C));
     74 
     75 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
     76 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
     77 	ut_asserteq(10000, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_SPI));
     78 	ut_asserteq(20000, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_I2C));
     79 
     80 	ut_assertok(sandbox_clk_test_enable(dev_test, SANDBOX_CLK_TEST_ID_SPI));
     81 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
     82 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
     83 
     84 	ut_assertok(sandbox_clk_test_enable(dev_test, SANDBOX_CLK_TEST_ID_I2C));
     85 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
     86 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
     87 
     88 	ut_assertok(sandbox_clk_test_disable(dev_test,
     89 					     SANDBOX_CLK_TEST_ID_SPI));
     90 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
     91 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
     92 
     93 	ut_assertok(sandbox_clk_test_disable(dev_test,
     94 					     SANDBOX_CLK_TEST_ID_I2C));
     95 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
     96 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
     97 
     98 	ut_assertok(sandbox_clk_test_free(dev_test));
     99 
    100 	return 0;
    101 }
    102 DM_TEST(dm_test_clk, DM_TESTF_SCAN_FDT);
    103 
    104 static int dm_test_clk_bulk(struct unit_test_state *uts)
    105 {
    106 	struct udevice *dev_clk, *dev_test;
    107 
    108 	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-sbox",
    109 					      &dev_clk));
    110 	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "clk-test",
    111 					      &dev_test));
    112 	ut_assertok(sandbox_clk_test_get_bulk(dev_test));
    113 
    114 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
    115 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
    116 
    117 	/* Fixed clock does not support enable, thus should not fail */
    118 	ut_assertok(sandbox_clk_test_enable_bulk(dev_test));
    119 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
    120 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
    121 
    122 	/* Fixed clock does not support disable, thus should not fail */
    123 	ut_assertok(sandbox_clk_test_disable_bulk(dev_test));
    124 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
    125 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
    126 
    127 	/* Fixed clock does not support enable, thus should not fail */
    128 	ut_assertok(sandbox_clk_test_enable_bulk(dev_test));
    129 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
    130 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
    131 
    132 	/* Fixed clock does not support disable, thus should not fail */
    133 	ut_assertok(sandbox_clk_test_release_bulk(dev_test));
    134 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
    135 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
    136 
    137 	return 0;
    138 }
    139 DM_TEST(dm_test_clk_bulk, DM_TESTF_SCAN_FDT);
    140