From patchwork Fri Jul 4 15:07:54 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 4481761 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 3B9F0BEEAA for ; Fri, 4 Jul 2014 15:10:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E58492026F for ; Fri, 4 Jul 2014 15:10:39 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 96C5220260 for ; Fri, 4 Jul 2014 15:10:38 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X356d-0004pj-Od; Fri, 04 Jul 2014 15:08:55 +0000 Received: from comal.ext.ti.com ([198.47.26.152]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X356R-0004YE-H4 for linux-arm-kernel@lists.infradead.org; Fri, 04 Jul 2014 15:08:44 +0000 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id s64F8Kst026315; Fri, 4 Jul 2014 10:08:20 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id s64F8KAx020353; Fri, 4 Jul 2014 10:08:20 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.174.1; Fri, 4 Jul 2014 10:08:20 -0500 Received: from localhost.localdomain (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id s64F8AvF014296; Fri, 4 Jul 2014 10:08:17 -0500 From: Kishon Vijay Abraham I To: , , , , , , , Subject: [RFC PATCH 2/2] phy: core: the node pointer of PHY need not be the same as that of PHY provider Date: Fri, 4 Jul 2014 20:37:54 +0530 Message-ID: <1404486474-28312-3-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1404486474-28312-1-git-send-email-kishon@ti.com> References: <1404486474-28312-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140704_080843_747910_5CD9944A X-CRM114-Status: GOOD ( 16.59 ) X-Spam-Score: -5.0 (-----) Cc: maxime.ripard@free-electrons.com, kgene.kim@samsung.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In case of multi-phy PHY providers, each PHY should be modeled as a sub node of the PHY provider. Then each PHY will have a different node pointer (node pointer of sub node) than that of PHY provider. Added this provision in the PHY core. Also fixed all drivers to use the updated API. Signed-off-by: Kishon Vijay Abraham I Acked-by: Lee Jones --- Documentation/phy.txt | 10 ++++++---- drivers/phy/phy-bcm-kona-usb2.c | 2 +- drivers/phy/phy-core.c | 25 ++++++++++++++++++------- drivers/phy/phy-exynos-dp-video.c | 2 +- drivers/phy/phy-exynos-mipi-video.c | 2 +- drivers/phy/phy-exynos5-usbdrd.c | 3 ++- drivers/phy/phy-exynos5250-sata.c | 2 +- drivers/phy/phy-mvebu-sata.c | 2 +- drivers/phy/phy-omap-usb2.c | 2 +- drivers/phy/phy-samsung-usb2.c | 3 ++- drivers/phy/phy-sun4i-usb.c | 2 +- drivers/phy/phy-ti-pipe3.c | 2 +- drivers/phy/phy-twl4030-usb.c | 2 +- drivers/phy/phy-xgene.c | 2 +- include/linux/phy/phy.h | 15 ++++++++++----- 15 files changed, 48 insertions(+), 28 deletions(-) diff --git a/Documentation/phy.txt b/Documentation/phy.txt index ebff6ee..c6594af 100644 --- a/Documentation/phy.txt +++ b/Documentation/phy.txt @@ -53,10 +53,12 @@ unregister the PHY. The PHY driver should create the PHY in order for other peripheral controllers to make use of it. The PHY framework provides 2 APIs to create the PHY. -struct phy *phy_create(struct device *dev, const struct phy_ops *ops, - struct phy_init_data *init_data); -struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops, - struct phy_init_data *init_data); +struct phy *phy_create(struct device *dev, struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data); +struct phy *devm_phy_create(struct device *dev, struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data); The PHY drivers can use one of the above 2 APIs to create the PHY by passing the device pointer, phy ops and init_data. diff --git a/drivers/phy/phy-bcm-kona-usb2.c b/drivers/phy/phy-bcm-kona-usb2.c index e94f5a6..894fe74 100644 --- a/drivers/phy/phy-bcm-kona-usb2.c +++ b/drivers/phy/phy-bcm-kona-usb2.c @@ -117,7 +117,7 @@ static int bcm_kona_usb2_probe(struct platform_device *pdev) platform_set_drvdata(pdev, phy); - gphy = devm_phy_create(dev, &ops, NULL); + gphy = devm_phy_create(dev, NULL, &ops, NULL); if (IS_ERR(gphy)) return PTR_ERR(gphy); diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index a4a1f783..9ad6691 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -406,13 +406,20 @@ struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args struct phy *phy; struct class_dev_iter iter; struct device_node *node = dev->of_node; + struct device_node *child; class_dev_iter_init(&iter, phy_class, NULL, NULL); while ((dev = class_dev_iter_next(&iter))) { phy = to_phy(dev); - if (node != phy->dev.of_node) + if (node != phy->dev.of_node) { + for_each_child_of_node(node, child) { + if (child == phy->dev.of_node) + goto phy_found; + } continue; + } +phy_found: class_dev_iter_exit(&iter); return phy; } @@ -570,13 +577,15 @@ EXPORT_SYMBOL_GPL(devm_of_phy_get); /** * phy_create() - create a new phy * @dev: device that is creating the new phy + * @node: device node of the phy * @ops: function pointers for performing phy operations * @init_data: contains the list of PHY consumers or NULL * * Called to create a phy using phy framework. */ -struct phy *phy_create(struct device *dev, const struct phy_ops *ops, - struct phy_init_data *init_data) +struct phy *phy_create(struct device *dev, struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data) { int ret; int id; @@ -601,7 +610,7 @@ struct phy *phy_create(struct device *dev, const struct phy_ops *ops, phy->dev.class = phy_class; phy->dev.parent = dev; - phy->dev.of_node = dev->of_node; + phy->dev.of_node = node?node:dev->of_node; phy->id = id; phy->ops = ops; phy->init_data = init_data; @@ -633,6 +642,7 @@ EXPORT_SYMBOL_GPL(phy_create); /** * devm_phy_create() - create a new phy * @dev: device that is creating the new phy + * @node: device node of the phy * @ops: function pointers for performing phy operations * @init_data: contains the list of PHY consumers or NULL * @@ -641,8 +651,9 @@ EXPORT_SYMBOL_GPL(phy_create); * On driver detach, release function is invoked on the devres data, * then, devres data is freed. */ -struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops, - struct phy_init_data *init_data) +struct phy *devm_phy_create(struct device *dev, struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data) { struct phy **ptr, *phy; @@ -650,7 +661,7 @@ struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops, if (!ptr) return ERR_PTR(-ENOMEM); - phy = phy_create(dev, ops, init_data); + phy = phy_create(dev, node, ops, init_data); if (!IS_ERR(phy)) { *ptr = phy; devres_add(dev, ptr); diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c index 0786fef..94fc0d1 100644 --- a/drivers/phy/phy-exynos-dp-video.c +++ b/drivers/phy/phy-exynos-dp-video.c @@ -76,7 +76,7 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev) if (IS_ERR(state->regs)) return PTR_ERR(state->regs); - phy = devm_phy_create(dev, &exynos_dp_video_phy_ops, NULL); + phy = devm_phy_create(dev, NULL, &exynos_dp_video_phy_ops, NULL); if (IS_ERR(phy)) { dev_err(dev, "failed to create Display Port PHY\n"); return PTR_ERR(phy); diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c index ff02668..e29a100 100644 --- a/drivers/phy/phy-exynos-mipi-video.c +++ b/drivers/phy/phy-exynos-mipi-video.c @@ -135,7 +135,7 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev) spin_lock_init(&state->slock); for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) { - struct phy *phy = devm_phy_create(dev, + struct phy *phy = devm_phy_create(dev, NULL, &exynos_mipi_video_phy_ops, NULL); if (IS_ERR(phy)) { dev_err(dev, "failed to create PHY %d\n", i); diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c index 76d862b..950532f 100644 --- a/drivers/phy/phy-exynos5-usbdrd.c +++ b/drivers/phy/phy-exynos5-usbdrd.c @@ -635,7 +635,8 @@ static int exynos5_usbdrd_phy_probe(struct platform_device *pdev) dev_vdbg(dev, "Creating usbdrd_phy phy\n"); for (i = 0; i < EXYNOS5_DRDPHYS_NUM; i++) { - struct phy *phy = devm_phy_create(dev, &exynos5_usbdrd_phy_ops, + struct phy *phy = devm_phy_create(dev, NULL, + &exynos5_usbdrd_phy_ops, NULL); if (IS_ERR(phy)) { dev_err(dev, "Failed to create usbdrd_phy phy\n"); diff --git a/drivers/phy/phy-exynos5250-sata.c b/drivers/phy/phy-exynos5250-sata.c index 0568945..19a679a 100644 --- a/drivers/phy/phy-exynos5250-sata.c +++ b/drivers/phy/phy-exynos5250-sata.c @@ -210,7 +210,7 @@ static int exynos_sata_phy_probe(struct platform_device *pdev) return ret; } - sata_phy->phy = devm_phy_create(dev, &exynos_sata_phy_ops, NULL); + sata_phy->phy = devm_phy_create(dev, NULL, &exynos_sata_phy_ops, NULL); if (IS_ERR(sata_phy->phy)) { clk_disable_unprepare(sata_phy->phyclk); dev_err(dev, "failed to create PHY\n"); diff --git a/drivers/phy/phy-mvebu-sata.c b/drivers/phy/phy-mvebu-sata.c index d70ecd6..cc3c0e1 100644 --- a/drivers/phy/phy-mvebu-sata.c +++ b/drivers/phy/phy-mvebu-sata.c @@ -99,7 +99,7 @@ static int phy_mvebu_sata_probe(struct platform_device *pdev) if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk); - phy = devm_phy_create(&pdev->dev, &phy_mvebu_sata_ops, NULL); + phy = devm_phy_create(&pdev->dev, NULL, &phy_mvebu_sata_ops, NULL); if (IS_ERR(phy)) return PTR_ERR(phy); diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c index 7007c11..fb17533 100644 --- a/drivers/phy/phy-omap-usb2.c +++ b/drivers/phy/phy-omap-usb2.c @@ -264,7 +264,7 @@ static int omap_usb2_probe(struct platform_device *pdev) platform_set_drvdata(pdev, phy); pm_runtime_enable(phy->dev); - generic_phy = devm_phy_create(phy->dev, &ops, NULL); + generic_phy = devm_phy_create(phy->dev, NULL, &ops, NULL); if (IS_ERR(generic_phy)) return PTR_ERR(generic_phy); diff --git a/drivers/phy/phy-samsung-usb2.c b/drivers/phy/phy-samsung-usb2.c index 8a8c6bc..8c75add 100644 --- a/drivers/phy/phy-samsung-usb2.c +++ b/drivers/phy/phy-samsung-usb2.c @@ -189,7 +189,8 @@ static int samsung_usb2_phy_probe(struct platform_device *pdev) struct samsung_usb2_phy_instance *p = &drv->instances[i]; dev_dbg(dev, "Creating phy \"%s\"\n", label); - p->phy = devm_phy_create(dev, &samsung_usb2_phy_ops, NULL); + p->phy = devm_phy_create(dev, NULL, &samsung_usb2_phy_ops, + NULL); if (IS_ERR(p->phy)) { dev_err(drv->dev, "Failed to create usb2_phy \"%s\"\n", label); diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c index 115d8d5..60e11ff 100644 --- a/drivers/phy/phy-sun4i-usb.c +++ b/drivers/phy/phy-sun4i-usb.c @@ -294,7 +294,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) return PTR_ERR(phy->pmu); } - phy->phy = devm_phy_create(dev, &sun4i_usb_phy_ops, NULL); + phy->phy = devm_phy_create(dev, NULL, &sun4i_usb_phy_ops, NULL); if (IS_ERR(phy->phy)) { dev_err(dev, "failed to create PHY %d\n", i); return PTR_ERR(phy->phy); diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c index 93bcd67..b964aa9 100644 --- a/drivers/phy/phy-ti-pipe3.c +++ b/drivers/phy/phy-ti-pipe3.c @@ -400,7 +400,7 @@ static int ti_pipe3_probe(struct platform_device *pdev) platform_set_drvdata(pdev, phy); pm_runtime_enable(phy->dev); - generic_phy = devm_phy_create(phy->dev, &ops, NULL); + generic_phy = devm_phy_create(phy->dev, NULL, &ops, NULL); if (IS_ERR(generic_phy)) return PTR_ERR(generic_phy); diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 2e0e9b3..e1a6623 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -695,7 +695,7 @@ static int twl4030_usb_probe(struct platform_device *pdev) otg->set_host = twl4030_set_host; otg->set_peripheral = twl4030_set_peripheral; - phy = devm_phy_create(twl->dev, &ops, init_data); + phy = devm_phy_create(twl->dev, NULL, &ops, init_data); if (IS_ERR(phy)) { dev_dbg(&pdev->dev, "Failed to create PHY\n"); return PTR_ERR(phy); diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c index 4aa1ccd..db809b9 100644 --- a/drivers/phy/phy-xgene.c +++ b/drivers/phy/phy-xgene.c @@ -1707,7 +1707,7 @@ static int xgene_phy_probe(struct platform_device *pdev) ctx->dev = &pdev->dev; platform_set_drvdata(pdev, ctx); - ctx->phy = devm_phy_create(ctx->dev, &xgene_phy_ops, NULL); + ctx->phy = devm_phy_create(ctx->dev, NULL, &xgene_phy_ops, NULL); if (IS_ERR(ctx->phy)) { dev_dbg(&pdev->dev, "Failed to create PHY\n"); rc = PTR_ERR(ctx->phy); diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 2760744..cfb878f 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -156,9 +156,10 @@ void devm_phy_put(struct device *dev, struct phy *phy); struct phy *of_phy_get(struct device_node *np, const char *con_id); struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args *args); -struct phy *phy_create(struct device *dev, const struct phy_ops *ops, - struct phy_init_data *init_data); -struct phy *devm_phy_create(struct device *dev, +struct phy *phy_create(struct device *dev, struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data); +struct phy *devm_phy_create(struct device *dev, struct device_node *node, const struct phy_ops *ops, struct phy_init_data *init_data); void phy_destroy(struct phy *phy); void devm_phy_destroy(struct device *dev, struct phy *phy); @@ -297,13 +298,17 @@ static inline struct phy *of_phy_simple_xlate(struct device *dev, } static inline struct phy *phy_create(struct device *dev, - const struct phy_ops *ops, struct phy_init_data *init_data) + struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data) { return ERR_PTR(-ENOSYS); } static inline struct phy *devm_phy_create(struct device *dev, - const struct phy_ops *ops, struct phy_init_data *init_data) + struct device_node *node, + const struct phy_ops *ops, + struct phy_init_data *init_data) { return ERR_PTR(-ENOSYS); }