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Thu, 7 Nov 2019 10:34:46 +0000 From: Rajan Vaja To: Rajan Vaja , "daniel.lezcano@linaro.org" , "tglx@linutronix.de" CC: "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH] drivers: clocksource: Use ttc driver as platform driver Thread-Topic: [PATCH] drivers: clocksource: Use ttc driver as platform driver Thread-Index: AQHVlVaOW+EHQwVffUWJv7WplPkHr6d/gr0Q Date: Thu, 7 Nov 2019 10:34:46 +0000 Message-ID: References: <1573122659-13947-1-git-send-email-rajan.vaja@xilinx.com> In-Reply-To: <1573122659-13947-1-git-send-email-rajan.vaja@xilinx.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=RAJANV@xilinx.com; x-originating-ip: [149.199.62.133] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 80eca67d-6765-453f-9650-08d7636e1c3b x-ms-traffictypediagnostic: BYAPR02MB4119:|BYAPR02MB4119: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5797; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-Network-Message-Id: 80eca67d-6765-453f-9650-08d7636e1c3b X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Nov 2019 10:34:46.5485 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 3o4Xlj1R24p8ifv1Cid847jybp5WNvF74F86bqaC6BzInRnhqVIkGujxueli3QgpaEpzxcpqYkh4lpSBa+1NKg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB4119 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Please discard this email as there is a typo in email address (michal.simek= @xilinx.com -> ichal.simek@xilinx.com). I am sending new email. Thanks, Rajan > -----Original Message----- > From: Rajan Vaja > Sent: 07 November 2019 02:31 > To: ichal.simek@xilinx.com; daniel.lezcano@linaro.org; tglx@linutronix.de > Cc: linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org; R= ajan > Vaja > Subject: [PATCH] drivers: clocksource: Use ttc driver as platform driver >=20 > 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. >=20 > So use TTC driver as platform driver instead of using > TIMER_OF_DECLARE. >=20 > Signed-off-by: Rajan Vaja > --- > drivers/clocksource/timer-cadence-ttc.c | 26 ++++++++++++++++++-------- > 1 file changed, 18 insertions(+), 8 deletions(-) >=20 > diff --git a/drivers/clocksource/timer-cadence-ttc.c b/drivers/clocksourc= e/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 >=20 > /* > * 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 *c= lk, > return 0; > } >=20 > -/** > - * ttc_timer_init - Initialize the timer > - * > - * Initializes the timer hardware and register the clock source and cloc= k 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 =3D 16; > + struct device_node *timer =3D pdev->dev.of_node; >=20 > if (initialized) > return 0; > @@ -532,4 +529,17 @@ static int __init ttc_timer_init(struct device_node = *timer) > return 0; > } >=20 > -TIMER_OF_DECLARE(ttc, "cdns,ttc", ttc_timer_init); > +static const struct of_device_id ttc_timer_of_match[] =3D { > + {.compatible =3D "cdns,ttc"}, > + {}, > +}; > + > +MODULE_DEVICE_TABLE(of, ttc_timer_of_match); > + > +static struct platform_driver ttc_timer_driver =3D { > + .driver =3D { > + .name =3D "cdns_ttc_timer", > + .of_match_table =3D ttc_timer_of_match, > + }, > +}; > +builtin_platform_driver_probe(ttc_timer_driver, ttc_timer_probe); > -- > 2.7.4