Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758343Ab3CGAaR (ORCPT ); Wed, 6 Mar 2013 19:30:17 -0500 Received: from wolverine02.qualcomm.com ([199.106.114.251]:24853 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758259Ab3CGA3z (ORCPT ); Wed, 6 Mar 2013 19:29:55 -0500 X-IronPort-AV: E=Sophos;i="4.84,798,1355126400"; d="scan'208";a="27969702" From: David Brown To: linux-arm-kernel@lists.infradead.org Cc: David Brown , linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH 6/6] RFC: SSBI: Simple pm8058 test driver Date: Wed, 6 Mar 2013 16:29:47 -0800 Message-Id: <1362616187-21089-7-git-send-email-davidb@codeaurora.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1362616187-21089-1-git-send-email-davidb@codeaurora.org> References: <1362616187-21089-1-git-send-email-davidb@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3427 Lines: 129 A very small ssbi device driver that reads the pm8058 version register ;and prints it out. This isn't really a useful driver, hence the RFC, but it is useful for someone wanting to test the SSBI driver itself. Once the PMIC drivers are finished, this isn't useful at all. Signed-off-by: David Brown --- arch/arm/boot/dts/msm8660-surf.dts | 4 +++ arch/arm/boot/dts/msm8960-cdp.dts | 4 +++ drivers/ssbi/Makefile | 1 + drivers/ssbi/ssbi-test.c | 61 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 70 insertions(+) create mode 100644 drivers/ssbi/ssbi-test.c diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts index 67f8670..68a0c7c4 100644 --- a/arch/arm/boot/dts/msm8660-surf.dts +++ b/arch/arm/boot/dts/msm8660-surf.dts @@ -43,5 +43,9 @@ compatible = "qcom,ssbi"; reg = <0x500000 0x1000>; qcom,controller-type = "pmic-arbiter"; + + qcom,ssbi-test { + compatible = "qcom,ssbi-test"; + }; }; }; diff --git a/arch/arm/boot/dts/msm8960-cdp.dts b/arch/arm/boot/dts/msm8960-cdp.dts index c9b09a8..60804d7 100644 --- a/arch/arm/boot/dts/msm8960-cdp.dts +++ b/arch/arm/boot/dts/msm8960-cdp.dts @@ -43,5 +43,9 @@ compatible = "qcom,ssbi"; reg = <0x500000 0x1000>; qcom,controller-type = "pmic-arbiter"; + + qcom,ssbi-test { + compatible = "qcom,ssbi-test"; + }; }; }; diff --git a/drivers/ssbi/Makefile b/drivers/ssbi/Makefile index ea8c1e4..3561280 100644 --- a/drivers/ssbi/Makefile +++ b/drivers/ssbi/Makefile @@ -2,3 +2,4 @@ # Makefile for the MSM specific device drivers. # obj-$(CONFIG_MSM_SSBI) += ssbi.o +obj-$(CONFIG_MSM_SSBI) += ssbi-test.o diff --git a/drivers/ssbi/ssbi-test.c b/drivers/ssbi/ssbi-test.c new file mode 100644 index 0000000..dea4dd0 --- /dev/null +++ b/drivers/ssbi/ssbi-test.c @@ -0,0 +1,61 @@ +/* A simple ssbi test device. */ + +#include +#include +#include +#include + +static int __init ssbi_test_probe(struct platform_device *pdev) +{ + int ret; + char version; + + dev_info(&pdev->dev, "probe, me = %p, parent = %p\n", + pdev, pdev->dev.parent); + + /* Let's try reading. */ + ret = msm_ssbi_read(pdev->dev.parent, 0x02, &version, 1); + if (ret != 0) + return ret; + + dev_info(&pdev->dev, "Version = %02x\n", version); + + /* Should already be hooked in. */ + return 0; +} + +static int ssbi_test_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct of_device_id ssbi_test_match_table[] = { + { .compatible = "qcom,ssbi-test" }, + {} +}; + +static struct platform_driver ssbi_test_driver = { + .remove = ssbi_test_remove, + .driver = { + .name = "sbbi_test", + .owner = THIS_MODULE, + .of_match_table = ssbi_test_match_table, + }, +}; + +static int __init ssbi_test_init(void) +{ + int ret; + + ret = platform_driver_probe(&ssbi_test_driver, ssbi_test_probe); + return ret; +} + +static void __exit ssbi_test_exit(void) +{ +} + +module_init(ssbi_test_init); +module_exit(ssbi_test_exit); + +MODULE_LICENSE("GPL"); -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/