From patchwork Wed Sep 14 13:02:26 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grygorii Strashko X-Patchwork-Id: 9331417 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 C96FE607FD for ; Wed, 14 Sep 2016 13:03:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA69E2921C for ; Wed, 14 Sep 2016 13:03:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AF65A29DC9; Wed, 14 Sep 2016 13:03:59 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE4972921C for ; Wed, 14 Sep 2016 13:03:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762041AbcINNCr (ORCPT ); Wed, 14 Sep 2016 09:02:47 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:46495 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756090AbcINNCn (ORCPT ); Wed, 14 Sep 2016 09:02:43 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id u8ED2gb8028971; Wed, 14 Sep 2016 08:02:42 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id u8ED2fJI028832; Wed, 14 Sep 2016 08:02:41 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.294.0; Wed, 14 Sep 2016 08:02:40 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id u8ED2dqm012870; Wed, 14 Sep 2016 08:02:40 -0500 From: Grygorii Strashko To: "David S. Miller" , , Mugunthan V N , Richard Cochran CC: Sekhar Nori , , , WingMan Kwok , Grygorii Strashko Subject: [PATCH 4/9] net: ethernet: ti: cpts: move dt props parsing to cpts driver Date: Wed, 14 Sep 2016 16:02:26 +0300 Message-ID: <20160914130231.3035-5-grygorii.strashko@ti.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160914130231.3035-1-grygorii.strashko@ti.com> References: <20160914130231.3035-1-grygorii.strashko@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Move DT properties parsing into CPTS driver to simplify consumer's code and CPTS driver porting on other SoC in the future (like Keystone 2). Signed-off-by: Grygorii Strashko --- drivers/net/ethernet/ti/cpsw.c | 16 +--------------- drivers/net/ethernet/ti/cpsw.h | 2 -- drivers/net/ethernet/ti/cpts.c | 29 ++++++++++++++++++++++++++--- drivers/net/ethernet/ti/cpts.h | 5 +++-- 4 files changed, 30 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index dfd5707..3db8fec 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2311,18 +2311,6 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, } data->active_slave = prop; - if (of_property_read_u32(node, "cpts_clock_mult", &prop)) { - dev_err(&pdev->dev, "Missing cpts_clock_mult property in the DT.\n"); - return -EINVAL; - } - data->cpts_clock_mult = prop; - - if (of_property_read_u32(node, "cpts_clock_shift", &prop)) { - dev_err(&pdev->dev, "Missing cpts_clock_shift property in the DT.\n"); - return -EINVAL; - } - data->cpts_clock_shift = prop; - data->slave_data = devm_kzalloc(&pdev->dev, data->slaves * sizeof(struct cpsw_slave_data), GFP_KERNEL); @@ -2742,9 +2730,7 @@ static int cpsw_probe(struct platform_device *pdev) goto clean_dma_ret; } - cpsw->cpts = cpts_create(cpsw->dev, cpts_regs, - cpsw->data.cpts_clock_mult, - cpsw->data.cpts_clock_shift); + cpsw->cpts = cpts_create(cpsw->dev, cpts_regs, cpsw->dev->of_node); if (IS_ERR(cpsw->cpts)) { ret = PTR_ERR(cpsw->cpts); goto clean_ale_ret; diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h index 16b54c6..6c3037a 100644 --- a/drivers/net/ethernet/ti/cpsw.h +++ b/drivers/net/ethernet/ti/cpsw.h @@ -31,8 +31,6 @@ struct cpsw_platform_data { u32 channels; /* number of cpdma channels (symmetric) */ u32 slaves; /* number of slave cpgmac ports */ u32 active_slave; /* time stamping, ethtool and SIOCGMIIPHY slave */ - u32 cpts_clock_mult; /* convert input clock ticks to nanoseconds */ - u32 cpts_clock_shift; /* convert input clock ticks to nanoseconds */ u32 ale_entries; /* ale table size */ u32 bd_ram_size; /*buffer descriptor ram size */ u32 mac_control; /* Mac control register */ diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c index a46478e..1ee64c6 100644 --- a/drivers/net/ethernet/ti/cpts.c +++ b/drivers/net/ethernet/ti/cpts.c @@ -388,10 +388,31 @@ void cpts_unregister(struct cpts *cpts) clk_disable(cpts->refclk); } +static int cpts_of_parse(struct cpts *cpts, struct device_node *node) +{ + int ret = -EINVAL; + u32 prop; + + if (of_property_read_u32(node, "cpts_clock_mult", &prop)) + goto of_error; + cpts->cc_mult = prop; + + if (of_property_read_u32(node, "cpts_clock_shift", &prop)) + goto of_error; + cpts->cc.shift = prop; + + return 0; + +of_error: + dev_err(cpts->dev, "CPTS: Missing property in the DT.\n"); + return ret; +} + struct cpts *cpts_create(struct device *dev, void __iomem *regs, - u32 mult, u32 shift) + struct device_node *node) { struct cpts *cpts; + int ret; if (!regs || !dev) return ERR_PTR(-EINVAL); @@ -405,6 +426,10 @@ struct cpts *cpts_create(struct device *dev, void __iomem *regs, spin_lock_init(&cpts->lock); INIT_DELAYED_WORK(&cpts->overflow_work, cpts_overflow_check); + ret = cpts_of_parse(cpts, node); + if (ret) + return ERR_PTR(ret); + cpts->refclk = devm_clk_get(dev, "cpts"); if (IS_ERR(cpts->refclk)) { dev_err(dev, "Failed to get cpts refclk\n"); @@ -415,8 +440,6 @@ struct cpts *cpts_create(struct device *dev, void __iomem *regs, cpts->cc.read = cpts_systim_read; cpts->cc.mask = CLOCKSOURCE_MASK(32); - cpts->cc.shift = shift; - cpts->cc_mult = mult; return cpts; } diff --git a/drivers/net/ethernet/ti/cpts.h b/drivers/net/ethernet/ti/cpts.h index 0c02f48..a865193 100644 --- a/drivers/net/ethernet/ti/cpts.h +++ b/drivers/net/ethernet/ti/cpts.h @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -133,7 +134,7 @@ void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb); int cpts_register(struct cpts *cpts); void cpts_unregister(struct cpts *cpts); struct cpts *cpts_create(struct device *dev, void __iomem *regs, - u32 mult, u32 shift); + struct device_node *node); void cpts_release(struct cpts *cpts); static inline void cpts_rx_enable(struct cpts *cpts, int enable) @@ -170,7 +171,7 @@ static inline void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb) static inline struct cpts *cpts_create(struct device *dev, void __iomem *regs, - u32 mult, u32 shift) + struct device_node *node) { return NULL; }