From patchwork Fri Jul 3 12:21:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 1322356 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256 header.s=ti-com-17Q1 header.b=HPAEAPUZ; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49yvGj710Cz9sPF for ; Fri, 3 Jul 2020 22:22:05 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 0D57E81BAE; Fri, 3 Jul 2020 14:21:42 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="HPAEAPUZ"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 2D71D81B54; Fri, 3 Jul 2020 14:21:38 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 64A2081B54 for ; Fri, 3 Jul 2020 14:21:33 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=p.yadav@ti.com Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 063CLVZ3005301; Fri, 3 Jul 2020 07:21:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1593778891; bh=oezg71xZMtqW/5/jWC9MC5uUaSHRt8n5+7R8HZgiJ/g=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=HPAEAPUZqqGKNh8io62ksZikxc6A+uPL/XOLZ2vkzSM2a1holwHIQF1Q5PXRguV8n G5R4j1uyMKKOSMKpTFbid1Y5bQ5Ja1tpi5Pv+umnCIDZddp7oAkDOxkXY+XwVqGClP /QI+cFPwvCrIvbgKSg2rw3o5lwB189IH6wDxMLks= Received: from DFLE112.ent.ti.com (dfle112.ent.ti.com [10.64.6.33]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 063CLVVM115100 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 3 Jul 2020 07:21:31 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 3 Jul 2020 07:21:31 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Fri, 3 Jul 2020 07:21:31 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 063CLPaT060615; Fri, 3 Jul 2020 07:21:30 -0500 From: Pratyush Yadav To: Simon Glass , CC: Pratyush Yadav , Vignesh Raghavendra , Sekhar Nori Subject: [PATCH v3 2/2] test: gpio: Add tests for the managed API Date: Fri, 3 Jul 2020 17:51:24 +0530 Message-ID: <20200703122124.29854-3-p.yadav@ti.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200703122124.29854-1-p.yadav@ti.com> References: <20200703122124.29854-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Jean-Jacques Hiblot Add a test to verify that GPIOs can be acquired/released using the managed API. Also check that the GPIOs are released when the consumer device is removed. Signed-off-by: Jean-Jacques Hiblot Reviewed-by: Simon Glass Signed-off-by: Pratyush Yadav --- arch/sandbox/dts/test.dts | 10 ++++ test/dm/gpio.c | 102 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 112 insertions(+) -- 2.27.0 diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index 5ce5e28476..a8618ccade 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -107,6 +107,9 @@ <&gpio_c 5 GPIO_IN>, <&gpio_c 6 (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN)>, <&gpio_c 7 (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE)>; + test4-gpios = <&gpio_a 14>, <&gpio_b 4 1 3 2 1>; + test5-gpios = <&gpio_a 19>; + int-value = <1234>; uint-value = <(-1234)>; int64-value = /bits/ 64 <0x1111222233334444>; @@ -114,6 +117,13 @@ interrupts-extended = <&irq 3 0>; }; + another-test { + reg = <0 2>; + compatible = "denx,u-boot-fdt-test"; + test4-gpios = <&gpio_a 14>, <&gpio_b 4 1 3 2 1>; + test5-gpios = <&gpio_a 19>; + }; + junk { reg = <1 1>; compatible = "not,compatible"; diff --git a/test/dm/gpio.c b/test/dm/gpio.c index b5ee4e4f87..40bea32b13 100644 --- a/test/dm/gpio.c +++ b/test/dm/gpio.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -385,3 +386,104 @@ static int dm_test_gpio_get_dir_flags(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_gpio_get_dir_flags, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test that we can get/release GPIOs using managed API */ +static int dm_test_gpio_devm(struct unit_test_state *uts) +{ + static const u32 flags = GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE; + struct gpio_desc *desc1, *desc2, *desc3, *desc_err; + struct udevice *dev; + struct udevice *dev2; + + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", + &dev)); + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "another-test", + &dev2)); + + /* Get 3 GPIOs from 'a-test' dev */ + desc1 = devm_gpiod_get_index(dev, "test4", 0, flags); + ut_assert(!IS_ERR(desc1)); + desc2 = devm_gpiod_get_index(dev, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + desc3 = devm_gpiod_get_index_optional(dev, "test5", 0, flags); + ut_assert(!IS_ERR(desc3)); + ut_assert(desc3); + + /* + * Try get the same 3 GPIOs from 'a-test' and 'another-test' devices. + * check that it fails + */ + desc_err = devm_gpiod_get_index(dev, "test4", 0, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev2, "test4", 0, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev, "test4", 1, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index_optional(dev, "test5", 0, flags); + ut_asserteq_ptr(NULL, desc_err); + desc_err = devm_gpiod_get_index_optional(dev2, "test5", 0, flags); + ut_asserteq_ptr(NULL, desc_err); + + /* Try get GPIOs outside of the list */ + desc_err = devm_gpiod_get_index(dev, "test4", 2, flags); + ut_assert(IS_ERR(desc_err)); + desc_err = devm_gpiod_get_index_optional(dev, "test5", 1, flags); + ut_asserteq_ptr(NULL, desc_err); + + /* Manipulate the GPIOs */ + ut_assertok(dm_gpio_set_value(desc1, 1)); + ut_asserteq(1, dm_gpio_get_value(desc1)); + ut_assertok(dm_gpio_set_value(desc1, 0)); + ut_asserteq(0, dm_gpio_get_value(desc1)); + + ut_assertok(dm_gpio_set_value(desc2, 1)); + ut_asserteq(1, dm_gpio_get_value(desc2)); + ut_assertok(dm_gpio_set_value(desc2, 0)); + ut_asserteq(0, dm_gpio_get_value(desc2)); + + ut_assertok(dm_gpio_set_value(desc3, 1)); + ut_asserteq(1, dm_gpio_get_value(desc3)); + ut_assertok(dm_gpio_set_value(desc3, 0)); + ut_asserteq(0, dm_gpio_get_value(desc3)); + + /* Check that the GPIO cannot be owned by more than one device */ + desc_err = devm_gpiod_get_index(dev2, "test4", 0, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_asserteq(-EBUSY, PTR_ERR(desc_err)); + desc_err = devm_gpiod_get_index_optional(dev2, "test5", 0, flags); + ut_asserteq_ptr(NULL, desc_err); + + /* + * Release one GPIO and check that we can get it back using + * 'another-test' and then 'a-test' + */ + devm_gpiod_put(dev, desc2); + desc2 = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + + devm_gpiod_put(dev2, desc2); + desc2 = devm_gpiod_get_index(dev, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + + /* Release one GPIO before removing the 'a-test' dev. */ + devm_gpiod_put(dev, desc2); + device_remove(dev, DM_REMOVE_NORMAL); + + /* All the GPIOs must have been freed. We should be able to claim + * them with the 'another-test' device. + */ + desc1 = devm_gpiod_get_index(dev2, "test4", 0, flags); + ut_assert(!IS_ERR(desc1)); + desc2 = devm_gpiod_get_index(dev2, "test4", 1, flags); + ut_assert(!IS_ERR(desc2)); + desc3 = devm_gpiod_get_index_optional(dev2, "test5", 0, flags); + ut_assert(!IS_ERR(desc3)); + ut_assert(desc3); + + device_remove(dev2, DM_REMOVE_NORMAL); + return 0; +} +DM_TEST(dm_test_gpio_devm, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);