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Thu, 07 Nov 2019 02:36:52 -0800 Received: from xsj-pvapsmtp01 (maildrop.xilinx.com [149.199.38.66]) by xsj-smtp-dlp1.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id xA7AahHX027859; Thu, 7 Nov 2019 02:36:43 -0800 Received: from [172.19.2.91] (helo=xsjjollys50.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1iSf9e-00024W-S3; Thu, 07 Nov 2019 02:36:42 -0800 From: Rajan Vaja To: michal.simek@xilinx.com, daniel.lezcano@linaro.org, tglx@linutronix.de Cc: linux-arm-kernel@lists.infradead.org, JOLLYS@xilinx.com, linux-kernel@vger.kernel.org, Rajan Vaja Subject: [PATCH] drivers: clocksource: Use ttc driver as platform driver Date: Thu, 7 Nov 2019 02:36:28 -0800 Message-Id: <1573122988-18399-1-git-send-email-rajan.vaja@xilinx.com> X-Mailer: git-send-email 2.7.4 X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83;IPV:NLI;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(4636009)(346002)(376002)(136003)(396003)(39860400002)(189003)(199004)(51416003)(9786002)(47776003)(16586007)(7696005)(48376002)(126002)(476003)(107886003)(478600001)(70586007)(70206006)(5660300002)(316002)(50466002)(106002)(26005)(186003)(426003)(36756003)(81156014)(81166006)(8936002)(336012)(50226002)(36386004)(486006)(44832011)(305945005)(2616005)(356004)(8676002)(6666004)(2906002)(4326008);DIR:OUT;SFP:1101;SCL:1;SRVR:BYAPR02MB4040;H:xsj-pvapsmtpgw01;FPR:;SPF:Pass;LANG:en;PTR:unknown-60-83.xilinx.com;MX:1;A:1; MIME-Version: 1.0 Content-Type: text/plain X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5e1620ee-395b-4d7c-f361-08d7636e6ab1 X-MS-TrafficTypeDiagnostic: BYAPR02MB4040: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:962; X-Forefront-PRVS: 0214EB3F68 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 97L3NulMGWqSa+MVucHsTXhtOOqoQcP9fgxXUCniySPO+j/zPQdbppY190Krj12FlMZcjqYasIkSEQrkzhEBC2GI1IooX+EySPn1y1xHeYhGZrO6p3Ap7eeMFGgF2XnKXh0uOGhqReOfGENHt6QdaYBD1LQWI9L6/jgcBFQTzLvpQK3qmapm7L3Li8Sn5MQzW2Nk5X7tyns8mVq3oIjhCkqaQqOBKxRHzIV0gE7kWJysCKxqCoKTpmjy3VflRZYRMpfMT8iWmNO1CHARwKljrbYga90He9afUFpmTY3UJ+wSitbzmL0jM65thIJyGNMuvBad/K6jsr3aWUow72ysRoxY88led0XqPTcbjDMVWpXzpe0l78py4N0Ym5wPDrGtp16WAY11j2EL7II6dwBQexcKZOJV3tKKPQKIDCpiW/ywUvjHHUwSolcY5eTQOe3z X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Nov 2019 10:36:58.2703 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5e1620ee-395b-4d7c-f361-08d7636e6ab1 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.60.83];Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB4040 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently TTC driver is TIMER_OF_DECLARE type driver. Because of that, TTC driver may be initialized before other clock drivers. If TTC driver is dependent on that clock driver then initialization of TTC driver will failed. So use TTC driver as platform driver instead of using TIMER_OF_DECLARE. Signed-off-by: Rajan Vaja --- drivers/clocksource/timer-cadence-ttc.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/clocksource/timer-cadence-ttc.c b/drivers/clocksource/timer-cadence-ttc.c index 88fe2e9..38858e1 100644 --- a/drivers/clocksource/timer-cadence-ttc.c +++ b/drivers/clocksource/timer-cadence-ttc.c @@ -15,6 +15,8 @@ #include #include #include +#include +#include /* * This driver configures the 2 16/32-bit count-up timers as follows: @@ -464,13 +466,7 @@ static int __init ttc_setup_clockevent(struct clk *clk, return 0; } -/** - * ttc_timer_init - Initialize the timer - * - * Initializes the timer hardware and register the clock source and clock event - * timers with Linux kernal timer framework - */ -static int __init ttc_timer_init(struct device_node *timer) +static int __init ttc_timer_probe(struct platform_device *pdev) { unsigned int irq; void __iomem *timer_baseaddr; @@ -478,6 +474,7 @@ static int __init ttc_timer_init(struct device_node *timer) static int initialized; int clksel, ret; u32 timer_width = 16; + struct device_node *timer = pdev->dev.of_node; if (initialized) return 0; @@ -532,4 +529,17 @@ static int __init ttc_timer_init(struct device_node *timer) return 0; } -TIMER_OF_DECLARE(ttc, "cdns,ttc", ttc_timer_init); +static const struct of_device_id ttc_timer_of_match[] = { + {.compatible = "cdns,ttc"}, + {}, +}; + +MODULE_DEVICE_TABLE(of, ttc_timer_of_match); + +static struct platform_driver ttc_timer_driver = { + .driver = { + .name = "cdns_ttc_timer", + .of_match_table = ttc_timer_of_match, + }, +}; +builtin_platform_driver_probe(ttc_timer_driver, ttc_timer_probe); -- 2.7.4