From patchwork Wed Nov 28 09:30:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 10702143 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B0EDE13AD for ; Wed, 28 Nov 2018 09:32:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9E9662CEC6 for ; Wed, 28 Nov 2018 09:32:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 92F9F2CEEA; Wed, 28 Nov 2018 09:32:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BC3C82CEE4 for ; Wed, 28 Nov 2018 09:32:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5Rp7z0d2doNuhSg3/eECYFqYXrO44lm0FwTzfbESTpk=; b=Rmig7XuM8Jo3/a wKTY6oTNv3FnwdmPfFawTxd2gVZBiXw387T0/4MxbN91DQahyqt1Ete+Vtb+ovEsdvhuBRGy7UaNn exo02M/fvCbReoaxu9hYXFUYc2oUEfX93U5Oy6ofwf3wBrsCoSFWC4yAp89NYhp9csiR96NyhH8Eh up66CkBf1bJ4LFygG1ePNlzoyHVlJjFV0X/BZ+BPcioEQgK4L2OVbHUtUbBdpNgnrUarjNUVWR/go 47RcedybmQghoC0nbvxJpYmp4RGfjzDZGHdpjRNkmOhaovyGi14rxbQhvCmBVW6jysBsTIZ+y0C+8 CSiYQA8nCYQKO1UpPc3g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gRwDE-00021p-Cr; Wed, 28 Nov 2018 09:32:52 +0000 Received: from mirror2.csie.ntu.edu.tw ([140.112.30.76] helo=wens.csie.org) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gRwBL-0008Ny-Ob for linux-arm-kernel@lists.infradead.org; Wed, 28 Nov 2018 09:31:08 +0000 Received: by wens.csie.org (Postfix, from userid 1000) id 686A26018C; Wed, 28 Nov 2018 17:30:28 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard , Alexandre Belloni , Alessandro Zummo , Michael Turquette , Stephen Boyd , Rob Herring , Mark Rutland Subject: [PATCH 07/15] rtc: sun6i: Add support for all known pre-H6 variants Date: Wed, 28 Nov 2018 17:30:04 +0800 Message-Id: <20181128093013.24442-8-wens@csie.org> X-Mailer: git-send-email 2.20.0.rc1 In-Reply-To: <20181128093013.24442-1-wens@csie.org> References: <20181128093013.24442-1-wens@csie.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181128_013056_812200_B0B43D69 X-CRM114-Status: GOOD ( 12.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, Chen-Yu Tsai , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP There are different variants to the RTC hardware first seen on sun6i (A31). The differences we care about in this driver are the clock rate for the internal oscillator, prescalers, and the presence of an external clock output. This patch adds support for all the known pre-H6 base compatibles using the variants data structure previously introduced. Signed-off-by: Chen-Yu Tsai Acked-by: Maxime Ripard --- drivers/rtc/rtc-sun6i.c | 48 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index d1866d90b9ef..62ed9ce53d8c 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -312,6 +312,50 @@ static void __init sun6i_a31_rtc_clk_init(struct device_node *node) CLK_OF_DECLARE_DRIVER(sun6i_a31_rtc_clk, "allwinner,sun6i-a31-rtc", sun6i_a31_rtc_clk_init); +static const struct sun6i_rtc_clk_data sun8i_a23_rtc_data = { + .rc_osc_rate = 667000, /* datasheet says 600 ~ 700 KHz */ + .has_prescaler = 1, + .has_out_clk = 1, +}; + +static void __init sun8i_a23_rtc_clk_init(struct device_node *node) +{ + sun6i_rtc_clk_init(node, &sun8i_a23_rtc_data); +} +CLK_OF_DECLARE_DRIVER(sun8i_a23_rtc_clk, "allwinner,sun8i-a23-rtc", + sun8i_a23_rtc_clk_init); + +static const struct sun6i_rtc_clk_data sun8i_h3_rtc_data = { + .rc_osc_rate = 16000000, + .fixed_prescaler = 32, + .has_prescaler = 1, + .has_out_clk = 1, +}; + +static void __init sun8i_h3_rtc_clk_init(struct device_node *node) +{ + sun6i_rtc_clk_init(node, &sun8i_h3_rtc_data); +} +CLK_OF_DECLARE_DRIVER(sun8i_h3_rtc_clk, "allwinner,sun8i-h3-rtc", + sun8i_h3_rtc_clk_init); +/* As far as we are concerned, clocks for H5 and H6 are the same as H3 */ +CLK_OF_DECLARE_DRIVER(sun50i_h5_rtc_clk, "allwinner,sun50i-h5-rtc", + sun8i_h3_rtc_clk_init); +CLK_OF_DECLARE_DRIVER(sun50i_h6_rtc_clk, "allwinner,sun50i-h6-rtc", + sun8i_h3_rtc_clk_init); + +static const struct sun6i_rtc_clk_data sun8i_v3_rtc_data = { + .rc_osc_rate = 32000, + .has_out_clk = 1, +}; + +static void __init sun8i_v3_rtc_clk_init(struct device_node *node) +{ + sun6i_rtc_clk_init(node, &sun8i_v3_rtc_data); +} +CLK_OF_DECLARE_DRIVER(sun8i_v3_rtc_clk, "allwinner,sun8i-v3-rtc", + sun8i_v3_rtc_clk_init); + static irqreturn_t sun6i_rtc_alarmirq(int irq, void *id) { struct sun6i_rtc_dev *chip = (struct sun6i_rtc_dev *) id; @@ -625,6 +669,10 @@ static int sun6i_rtc_probe(struct platform_device *pdev) */ static const struct of_device_id sun6i_rtc_dt_ids[] = { { .compatible = "allwinner,sun6i-a31-rtc" }, + { .compatible = "allwinner,sun8i-a23-rtc" }, + { .compatible = "allwinner,sun8i-h3-rtc" }, + { .compatible = "allwinner,sun8i-v3-rtc" }, + { .compatible = "allwinner,sun50i-h5-rtc" }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, sun6i_rtc_dt_ids);