From patchwork Fri Jan 12 14:22:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 10161161 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 03A9260327 for ; Fri, 12 Jan 2018 14:39:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9CA2288F7 for ; Fri, 12 Jan 2018 14:39:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BE3D228917; Fri, 12 Jan 2018 14:39:15 +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=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6DD29288F7 for ; Fri, 12 Jan 2018 14:39:15 +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=ZPjxaRM/NTjYpmTEA7wYuLwUPZjy8etxmbrLhJLhS4s=; b=G7R92Ykzjktv0n tpq2zV5+11H5K7fWfROnZ5Cm7zemdukw9b+zICuNy5tTO6IBcAozZdSkUoijh1xPuZRXPu3woFkl2 WlEGKPoa/bQvKZsumCa2QBgUo0mngrxH54UPKAvZH6cZyUj6/LBEYLNyQzcDZ5+r7LUPVz/g7Z2TR nlfH0Qe1zC8dlH+xhS9oaQ493lmZ2pFsopNvog2imXEuAZmzqeBKISSFeH7eCStXqL9FuS48/gY2d UlvwB68EBRvOeo6LebIn8jCRC5xpg+UN43Wh3b35Ft2RRG0kG7pbTaxB0DIYPRkcAUXg6vwzvPp2H eEavsW2yEzRk5uray06w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1ea0UB-0003Tu-Q9; Fri, 12 Jan 2018 14:39:11 +0000 Received: from esa5.microchip.iphmx.com ([216.71.150.166]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1ea0Fn-0007Mr-Qr; Fri, 12 Jan 2018 14:24:25 +0000 X-IronPort-AV: E=Sophos;i="5.46,349,1511852400"; d="scan'208";a="8191802" Received: from exsmtp03.microchip.com (HELO email.microchip.com) ([198.175.253.49]) by esa5.microchip.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 12 Jan 2018 07:24:19 -0700 Received: from m18063-ThinkPad-T460p.microchip.com (10.10.76.4) by chn-sv-exch03.mchp-main.com (10.10.76.49) with Microsoft SMTP Server id 14.3.352.0; Fri, 12 Jan 2018 07:24:19 -0700 From: Claudiu Beznea To: , , , , , , , , , Subject: [PATCH v2 12/16] pwm: atmel: add pwm capabilities Date: Fri, 12 Jan 2018 16:22:59 +0200 Message-ID: <1515766983-15151-13-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1515766983-15151-1-git-send-email-claudiu.beznea@microchip.com> References: <1515766983-15151-1-git-send-email-claudiu.beznea@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180112_062420_354759_DD46F566 X-CRM114-Status: UNSURE ( 9.76 ) X-CRM114-Notice: Please train this message. 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-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, Claudiu Beznea , 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 Add pwm capabilities to Atmel PWM controllers. Signed-off-by: Claudiu Beznea --- drivers/pwm/pwm-atmel.c | 58 +++++++++++++++++++++++++++++++------------------ 1 file changed, 37 insertions(+), 21 deletions(-) diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c index 32427d2b7877..e879d5459b55 100644 --- a/drivers/pwm/pwm-atmel.c +++ b/drivers/pwm/pwm-atmel.c @@ -65,6 +65,11 @@ struct atmel_pwm_registers { u8 duty_upd; }; +struct atmel_pwm_data { + struct atmel_pwm_registers regs; + struct pwm_caps caps; +}; + struct atmel_pwm_chip { struct pwm_chip chip; struct clk *clk; @@ -277,27 +282,37 @@ static const struct pwm_ops atmel_pwm_ops = { .owner = THIS_MODULE, }; -static const struct atmel_pwm_registers atmel_pwm_regs_v1 = { - .period = PWMV1_CPRD, - .period_upd = PWMV1_CUPD, - .duty = PWMV1_CDTY, - .duty_upd = PWMV1_CUPD, +static const struct atmel_pwm_data atmel_pwm_data_v1 = { + .regs = { + .period = PWMV1_CPRD, + .period_upd = PWMV1_CUPD, + .duty = PWMV1_CDTY, + .duty_upd = PWMV1_CUPD, + }, + .caps = { + .modes = PWM_MODE_NORMAL, + }, }; -static const struct atmel_pwm_registers atmel_pwm_regs_v2 = { - .period = PWMV2_CPRD, - .period_upd = PWMV2_CPRDUPD, - .duty = PWMV2_CDTY, - .duty_upd = PWMV2_CDTYUPD, +static const struct atmel_pwm_data atmel_pwm_data_v2 = { + .regs = { + .period = PWMV2_CPRD, + .period_upd = PWMV2_CPRDUPD, + .duty = PWMV2_CDTY, + .duty_upd = PWMV2_CDTYUPD, + }, + .caps = { + .modes = PWM_MODE_NORMAL | PWM_MODE_COMPLEMENTARY, + }, }; static const struct platform_device_id atmel_pwm_devtypes[] = { { .name = "at91sam9rl-pwm", - .driver_data = (kernel_ulong_t)&atmel_pwm_regs_v1, + .driver_data = (kernel_ulong_t)&atmel_pwm_data_v1, }, { .name = "sama5d3-pwm", - .driver_data = (kernel_ulong_t)&atmel_pwm_regs_v2, + .driver_data = (kernel_ulong_t)&atmel_pwm_data_v2, }, { /* sentinel */ }, @@ -307,20 +322,20 @@ MODULE_DEVICE_TABLE(platform, atmel_pwm_devtypes); static const struct of_device_id atmel_pwm_dt_ids[] = { { .compatible = "atmel,at91sam9rl-pwm", - .data = &atmel_pwm_regs_v1, + .data = &atmel_pwm_data_v1, }, { .compatible = "atmel,sama5d3-pwm", - .data = &atmel_pwm_regs_v2, + .data = &atmel_pwm_data_v2, }, { .compatible = "atmel,sama5d2-pwm", - .data = &atmel_pwm_regs_v2, + .data = &atmel_pwm_data_v2, }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, atmel_pwm_dt_ids); -static inline const struct atmel_pwm_registers * +static inline const struct atmel_pwm_data * atmel_pwm_get_driver_data(struct platform_device *pdev) { const struct platform_device_id *id; @@ -330,18 +345,18 @@ atmel_pwm_get_driver_data(struct platform_device *pdev) id = platform_get_device_id(pdev); - return (struct atmel_pwm_registers *)id->driver_data; + return (struct atmel_pwm_data *)id->driver_data; } static int atmel_pwm_probe(struct platform_device *pdev) { - const struct atmel_pwm_registers *regs; + const struct atmel_pwm_data *data; struct atmel_pwm_chip *atmel_pwm; struct resource *res; int ret; - regs = atmel_pwm_get_driver_data(pdev); - if (!regs) + data = atmel_pwm_get_driver_data(pdev); + if (!data) return -ENODEV; atmel_pwm = devm_kzalloc(&pdev->dev, sizeof(*atmel_pwm), GFP_KERNEL); @@ -365,9 +380,10 @@ static int atmel_pwm_probe(struct platform_device *pdev) atmel_pwm->chip.dev = &pdev->dev; atmel_pwm->chip.ops = &atmel_pwm_ops; + atmel_pwm->chip.caps = &data->caps; atmel_pwm->chip.base = -1; atmel_pwm->chip.npwm = 4; - atmel_pwm->regs = regs; + atmel_pwm->regs = &data->regs; atmel_pwm->updated_pwms = 0; mutex_init(&atmel_pwm->isr_lock);