From patchwork Tue Feb 11 10:35:26 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Meghana Malladi X-Patchwork-Id: 13970023 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6E7ADC0219B for ; Tue, 11 Feb 2025 10:40:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4eu/F+8MkJf0tfp1lrFQk169HWf+3pgA6uUx7BJHpdc=; b=iu2pL538BLcpLCv8C+sXwvwwUJ 7wp5YCdHYyipI+JSyyQj9h9bFh6L0njOK7ndyniWjTrr0BeG1fCLt4G+1RK+hMThZrMih+1+IHb/4 p7kViPrBy0kwUiHPkbL9HcdsLixmlo+LTleya66u7cVSs3P/JI2jxcva9aojAajzZ0vs5zMBIk38i L+sDecg/KyN98aQ01ipzqhJwDDZfZE3iTsonCSHXQJFLJnqJUA3bAmQEfARtYxKNLD6DkjJhQKYWB 8JLtAiQ7Zy80Wk9INKF3mJbwEke6gKQ6NEv2D9kzc6c6hj8QpuM/PQev2jjfPN5c84vKpEo9W/1X3 MJ0Uvifw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1thngU-00000003NkW-3rC7; Tue, 11 Feb 2025 10:40:06 +0000 Received: from lelvem-ot01.ext.ti.com ([198.47.23.234]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1thncL-00000003MxG-1Qqg for linux-arm-kernel@lists.infradead.org; Tue, 11 Feb 2025 10:35:50 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelvem-ot01.ext.ti.com (8.15.2/8.15.2) with ESMTPS id 51BAZbjT308370 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 11 Feb 2025 04:35:37 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1739270137; bh=4eu/F+8MkJf0tfp1lrFQk169HWf+3pgA6uUx7BJHpdc=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=chxnegHeQDoJAMm3Nk5WPOWC8CewxJN/5LOy9cihR4ESjbbo3pOQLIKUCwvwQmGGa iHJINXdvZ2CC0N7olNpwuFb3YkRs5jVC2NFPO4tZK27GL/WPRvLmoohz/jvGnqcwur gK3NeNQJbn9i+BComtwoD5LbfXCMurDMrAeLl8fA= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 51BAZb4q046444 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 11 Feb 2025 04:35:37 -0600 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 11 Feb 2025 04:35:36 -0600 Received: from fllvsmtp7.itg.ti.com (10.64.40.31) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 11 Feb 2025 04:35:36 -0600 Received: from lelv0854.itg.ti.com (lelv0854.itg.ti.com [10.181.64.140]) by fllvsmtp7.itg.ti.com (8.15.2/8.15.2) with ESMTP id 51BAZah4122269; Tue, 11 Feb 2025 04:35:36 -0600 Received: from localhost (meghana-pc.dhcp.ti.com [10.24.69.13] (may be forged)) by lelv0854.itg.ti.com (8.14.7/8.14.7) with ESMTP id 51BAZZAe014187; Tue, 11 Feb 2025 04:35:36 -0600 From: Meghana Malladi To: , , , , , , , , CC: , , , , Vignesh Raghavendra , Roger Quadros , Subject: [PATCH net 1/2] net: ti: icss-iep: Fix pwidth configuration for perout signal Date: Tue, 11 Feb 2025 16:05:26 +0530 Message-ID: <20250211103527.923849-2-m-malladi@ti.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250211103527.923849-1-m-malladi@ti.com> References: <20250211103527.923849-1-m-malladi@ti.com> MIME-Version: 1.0 X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250211_023549_470877_F233627F X-CRM114-Status: GOOD ( 19.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org icss_iep_perout_enable_hw() is a common function for generating both pps and perout signals. When enabling pps, the application needs to only pass enable/disable argument, whereas for perout it supports different flags to configure the signal. But icss_iep_perout_enable_hw() function is missing to hook the configuration params passed by the app, causing perout to behave same a pps (except being able to configure the period). As duty cycle is also one feature which can configured for perout, incorporate this in the function to get the expected signal. Fixes: c1e0230eeaab2 ("net: ti: icss-iep: Add IEP driver") Signed-off-by: Meghana Malladi --- drivers/net/ethernet/ti/icssg/icss_iep.c | 28 ++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/icssg/icss_iep.c b/drivers/net/ethernet/ti/icssg/icss_iep.c index 768578c0d958..789516683ca9 100644 --- a/drivers/net/ethernet/ti/icssg/icss_iep.c +++ b/drivers/net/ethernet/ti/icssg/icss_iep.c @@ -406,9 +406,16 @@ static void icss_iep_update_to_next_boundary(struct icss_iep *iep, u64 start_ns) static int icss_iep_perout_enable_hw(struct icss_iep *iep, struct ptp_perout_request *req, int on) { + struct timespec64 ts; + u64 ns_width; int ret; u64 cmp; + /* Calculate width of the signal for PPS/PEROUT handling */ + ts.tv_sec = req->on.sec; + ts.tv_nsec = req->on.nsec; + ns_width = timespec64_to_ns(&ts); + if (iep->ops && iep->ops->perout_enable) { ret = iep->ops->perout_enable(iep->clockops_data, req, on, &cmp); if (ret) @@ -419,8 +426,9 @@ static int icss_iep_perout_enable_hw(struct icss_iep *iep, regmap_write(iep->map, ICSS_IEP_CMP1_REG0, lower_32_bits(cmp)); if (iep->plat_data->flags & ICSS_IEP_64BIT_COUNTER_SUPPORT) regmap_write(iep->map, ICSS_IEP_CMP1_REG1, upper_32_bits(cmp)); - /* Configure SYNC, 1ms pulse width */ - regmap_write(iep->map, ICSS_IEP_SYNC_PWIDTH_REG, 1000000); + /* Configure SYNC, based on req on width */ + regmap_write(iep->map, ICSS_IEP_SYNC_PWIDTH_REG, + (u32)(ns_width / iep->def_inc)); regmap_write(iep->map, ICSS_IEP_SYNC0_PERIOD_REG, 0); regmap_write(iep->map, ICSS_IEP_SYNC_START_REG, 0); regmap_write(iep->map, ICSS_IEP_SYNC_CTRL_REG, 0); /* one-shot mode */ @@ -447,6 +455,8 @@ static int icss_iep_perout_enable_hw(struct icss_iep *iep, + req->period.nsec; icss_iep_update_to_next_boundary(iep, start_ns); + regmap_write(iep->map, ICSS_IEP_SYNC_PWIDTH_REG, + (u32)(ns_width / iep->def_inc)); /* Enable Sync in single shot mode */ regmap_write(iep->map, ICSS_IEP_SYNC_CTRL_REG, IEP_SYNC_CTRL_SYNC_N_EN(0) | IEP_SYNC_CTRL_SYNC_EN); @@ -478,6 +488,12 @@ static int icss_iep_perout_enable(struct icss_iep *iep, mutex_lock(&iep->ptp_clk_mutex); + /* Reject requests with unsupported flags */ + if (req->flags & ~PTP_PEROUT_DUTY_CYCLE) { + ret = -EOPNOTSUPP; + goto exit; + } + if (iep->pps_enabled) { ret = -EBUSY; goto exit; @@ -486,6 +502,12 @@ static int icss_iep_perout_enable(struct icss_iep *iep, if (iep->perout_enabled == !!on) goto exit; + /* Set default "on" time (1ms) for the signal if not passed by the app */ + if (!(req->flags & PTP_PEROUT_DUTY_CYCLE)) { + req->on.sec = 0; + req->on.nsec = NSEC_PER_MSEC; + } + ret = icss_iep_perout_enable_hw(iep, req, on); if (!ret) iep->perout_enabled = !!on; @@ -572,6 +594,8 @@ static int icss_iep_pps_enable(struct icss_iep *iep, int on) rq.perout.period.nsec = 0; rq.perout.start.sec = ts.tv_sec + 2; rq.perout.start.nsec = 0; + rq.perout.on.sec = 0; + rq.perout.on.nsec = NSEC_PER_MSEC; ret = icss_iep_perout_enable_hw(iep, &rq.perout, on); } else { ret = icss_iep_perout_enable_hw(iep, &rq.perout, on);