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Mon, 04 Mar 2024 21:05:05 -0800 (PST) Date: Mon, 4 Mar 2024 21:04:54 -0800 In-Reply-To: <20240305050458.1400667-1-saravanak@google.com> Message-Id: <20240305050458.1400667-2-saravanak@google.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240305050458.1400667-1-saravanak@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v5 1/3] driver core: Adds flags param to fwnode_link_add() From: Saravana Kannan To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Ard Biesheuvel , Rob Herring , Frank Rowand , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Len Brown Cc: Saravana Kannan , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Rob Herring Allow the callers to set fwnode link flags when adding fwnode links. Signed-off-by: Saravana Kannan Acked-by: Rafael J. Wysocki Reviewed-by: Rob Herring --- drivers/base/core.c | 5 +++-- drivers/firmware/efi/sysfb_efi.c | 2 +- drivers/of/property.c | 2 +- include/linux/fwnode.h | 3 ++- 4 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 9828da9b933c..adeff041d472 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -92,12 +92,13 @@ static int __fwnode_link_add(struct fwnode_handle *con, return 0; } -int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup) +int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup, + u8 flags) { int ret; mutex_lock(&fwnode_link_lock); - ret = __fwnode_link_add(con, sup, 0); + ret = __fwnode_link_add(con, sup, flags); mutex_unlock(&fwnode_link_lock); return ret; } diff --git a/drivers/firmware/efi/sysfb_efi.c b/drivers/firmware/efi/sysfb_efi.c index 456d0e5eaf78..cc807ed35aed 100644 --- a/drivers/firmware/efi/sysfb_efi.c +++ b/drivers/firmware/efi/sysfb_efi.c @@ -336,7 +336,7 @@ static int efifb_add_links(struct fwnode_handle *fwnode) if (!sup_np) return 0; - fwnode_link_add(fwnode, of_fwnode_handle(sup_np)); + fwnode_link_add(fwnode, of_fwnode_handle(sup_np), 0); of_node_put(sup_np); return 0; diff --git a/drivers/of/property.c b/drivers/of/property.c index b71267c6667c..bce849f21ae2 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1085,7 +1085,7 @@ static void of_link_to_phandle(struct device_node *con_np, tmp_np = of_get_next_parent(tmp_np); } - fwnode_link_add(of_fwnode_handle(con_np), of_fwnode_handle(sup_np)); + fwnode_link_add(of_fwnode_handle(con_np), of_fwnode_handle(sup_np), 0); } /** diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 2a72f55d26eb..c964749953e3 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -210,7 +210,8 @@ static inline void fwnode_dev_initialized(struct fwnode_handle *fwnode, } extern bool fw_devlink_is_strict(void); -int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup); +int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup, + u8 flags); void fwnode_links_purge(struct fwnode_handle *fwnode); void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode); From patchwork Tue Mar 5 05:04:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 1908010 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20230601 header.b=y1FpB/Jy; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:4601:e00::3; helo=am.mirrors.kernel.org; envelope-from=devicetree+bounces-48292-incoming-dt=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [IPv6:2604:1380:4601:e00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Tpk6s1JVVz1yX3 for ; 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Mon, 04 Mar 2024 21:05:12 -0800 (PST) Date: Mon, 4 Mar 2024 21:04:56 -0800 In-Reply-To: <20240305050458.1400667-1-saravanak@google.com> Message-Id: <20240305050458.1400667-4-saravanak@google.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240305050458.1400667-1-saravanak@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v5 3/3] of: property: fw_devlink: Add support for "post-init-providers" property From: Saravana Kannan To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Ard Biesheuvel , Rob Herring , Frank Rowand , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Len Brown Cc: Saravana Kannan , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Rob Herring Add support for this property so that dependency cycles can be broken and fw_devlink can do better probe/suspend/resume ordering between devices in a dependency cycle. Signed-off-by: Saravana Kannan Acked-by: Rafael J. Wysocki Reviewed-by: Rob Herring --- drivers/of/property.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index bce849f21ae2..b517a92dabca 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1066,7 +1066,8 @@ of_fwnode_device_get_match_data(const struct fwnode_handle *fwnode, } static void of_link_to_phandle(struct device_node *con_np, - struct device_node *sup_np) + struct device_node *sup_np, + u8 flags) { struct device_node *tmp_np = of_node_get(sup_np); @@ -1085,7 +1086,7 @@ static void of_link_to_phandle(struct device_node *con_np, tmp_np = of_get_next_parent(tmp_np); } - fwnode_link_add(of_fwnode_handle(con_np), of_fwnode_handle(sup_np), 0); + fwnode_link_add(of_fwnode_handle(con_np), of_fwnode_handle(sup_np), flags); } /** @@ -1198,6 +1199,8 @@ static struct device_node *parse_##fname(struct device_node *np, \ * to a struct device, implement this ops so fw_devlink can use it * to find the true consumer. * @optional: Describes whether a supplier is mandatory or not + * @fwlink_flags: Optional fwnode link flags to use when creating a fwnode link + * for this property. * * Returns: * parse_prop() return values are @@ -1210,6 +1213,7 @@ struct supplier_bindings { const char *prop_name, int index); struct device_node *(*get_con_dev)(struct device_node *np); bool optional; + u8 fwlink_flags; }; DEFINE_SIMPLE_PROP(clocks, "clocks", "#clock-cells") @@ -1240,6 +1244,7 @@ DEFINE_SIMPLE_PROP(leds, "leds", NULL) DEFINE_SIMPLE_PROP(backlight, "backlight", NULL) DEFINE_SIMPLE_PROP(panel, "panel", NULL) DEFINE_SIMPLE_PROP(msi_parent, "msi-parent", "#msi-cells") +DEFINE_SIMPLE_PROP(post_init_providers, "post-init-providers", NULL) DEFINE_SUFFIX_PROP(regulators, "-supply", NULL) DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells") @@ -1349,6 +1354,10 @@ static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_regulators, }, { .parse_prop = parse_gpio, }, { .parse_prop = parse_gpios, }, + { + .parse_prop = parse_post_init_providers, + .fwlink_flags = FWLINK_FLAG_IGNORE, + }, {} }; @@ -1393,7 +1402,7 @@ static int of_link_property(struct device_node *con_np, const char *prop_name) : of_node_get(con_np); matched = true; i++; - of_link_to_phandle(con_dev_np, phandle); + of_link_to_phandle(con_dev_np, phandle, s->fwlink_flags); of_node_put(phandle); of_node_put(con_dev_np); }