From mboxrd@z Thu Jan 1 00:00:00 1970 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 phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 347F3C433EF for ; Fri, 26 Nov 2021 13:58:58 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 1183C83747; Fri, 26 Nov 2021 14:58:38 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="HUractWz"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 40BF583754; Fri, 26 Nov 2021 14:57:50 +0100 (CET) Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 65E1E8373F for ; Fri, 26 Nov 2021 14:57:37 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=kabel@kernel.org Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id F362AB827E9; Fri, 26 Nov 2021 13:57:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9092EC9305D; Fri, 26 Nov 2021 13:57:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637935055; bh=u9X7xTaRRvaTE21wp8OtUUz5N0SMATowTVP6HFOwuuk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HUractWz/iErza1FxnnCrYU6KIrp33bKVvVgeGuuB7pqX8GpQ9lfGUaUhLtzPXJPB x/ouCRHi9Ac+63lR2jzpj2nZqzmew7JLa0M/YuFoRDzEHko/7lBhv9IWCMzxxCL8MN cS5YTe04N/VaFZLo/fM35YknQRIMlQF6NDqGlPhXIdQeSthzUY8loGI108b2JVzTtC 1KOpHdJK7Ck/l43s28pq2wslTaJOAhFz8Ff45jyGYHZaOPOclWiZQktbS95TdydNkK BqZC8xUZs9tXar8tnkbD3/P6uASfQUDk9zuFC+DqF2XnmNam1F9T+VplSeuQ+u7REC HqLFnmfNM4ALA== From: =?UTF-8?q?Marek=20Beh=C3=BAn?= To: Stefan Roese Cc: u-boot@lists.denx.de, =?UTF-8?q?Pali=20Roh=C3=A1r?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= Subject: [PATCH u-boot-marvell RESEND 06/11] fdt_support: Add some useful functions Date: Fri, 26 Nov 2021 14:57:10 +0100 Message-Id: <20211126135715.26485-7-kabel@kernel.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211126135715.26485-1-kabel@kernel.org> References: <20211126135715.26485-1-kabel@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.37 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean From: Marek Behún Add functions fdt_node_offset_by_pathf(), fdt_create_phandle_by_pathf(), fdt_set_status_by_pathf() to get node offset, get/create node phandle and set status for node given by path/alias formatted with sprintf. Add functions fdt_create_phandle_by_compatible(), fdt_set_status_by_compatible() to get/create node phandle and set status for first node given by compatible. Signed-off-by: Marek Behún Reviewed-by: Stefan Roese --- common/fdt_support.c | 119 ++++++++++++++++++++++++++++++++++++++++++ include/fdt_support.h | 30 +++++++++++ 2 files changed, 149 insertions(+) diff --git a/common/fdt_support.c b/common/fdt_support.c index df111f708c..c2e16727e1 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -1463,6 +1463,37 @@ int fdt_node_offset_by_compat_reg(void *blob, const char *compat, return -FDT_ERR_NOTFOUND; } +static int vnode_offset_by_pathf(void *blob, const char *fmt, va_list ap) +{ + char path[512]; + int len; + + len = vsnprintf(path, sizeof(path), fmt, ap); + if (len < 0 || len + 1 > sizeof(path)) + return -FDT_ERR_NOSPACE; + + return fdt_path_offset(blob, path); +} + +/** + * fdt_node_offset_by_pathf: Find node offset by sprintf formatted path + * + * @blob: ptr to device tree + * @fmt: path format + * @ap: vsnprintf arguments + */ +int fdt_node_offset_by_pathf(void *blob, const char *fmt, ...) +{ + va_list ap; + int res; + + va_start(ap, fmt); + res = vnode_offset_by_pathf(blob, fmt, ap); + va_end(ap); + + return res; +} + /* * fdt_set_phandle: Create a phandle property for the given node * @@ -1536,6 +1567,51 @@ unsigned int fdt_create_phandle(void *fdt, int nodeoffset) return phandle; } +/** + * fdt_create_phandle_by_compatible: Get or create a phandle for first node with + * given compatible + * + * @fdt: ptr to device tree + * @compat: node's compatible string + */ +unsigned int fdt_create_phandle_by_compatible(void *fdt, const char *compat) +{ + int offset = fdt_node_offset_by_compatible(fdt, -1, compat); + + if (offset < 0) { + printf("Can't find node with compatible \"%s\": %s\n", compat, + fdt_strerror(offset)); + return 0; + } + + return fdt_create_phandle(fdt, offset); +} + +/** + * fdt_create_phandle_by_pathf: Get or create a phandle for node given by + * sprintf-formatted path + * + * @fdt: ptr to device tree + * @fmt, ...: path format string and arguments to pass to sprintf + */ +unsigned int fdt_create_phandle_by_pathf(void *fdt, const char *fmt, ...) +{ + va_list ap; + int offset; + + va_start(ap, fmt); + offset = vnode_offset_by_pathf(fdt, fmt, ap); + va_end(ap); + + if (offset < 0) { + printf("Can't find node by given path: %s\n", + fdt_strerror(offset)); + return 0; + } + + return fdt_create_phandle(fdt, offset); +} + /* * fdt_set_node_status: Set status for the given node * @@ -1584,6 +1660,49 @@ int fdt_set_status_by_alias(void *fdt, const char* alias, return fdt_set_node_status(fdt, offset, status); } +/** + * fdt_set_status_by_compatible: Set node status for first node with given + * compatible + * + * @fdt: ptr to device tree + * @compat: node's compatible string + * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED, FDT_STATUS_FAIL + */ +int fdt_set_status_by_compatible(void *fdt, const char *compat, + enum fdt_status status) +{ + int offset = fdt_node_offset_by_compatible(fdt, -1, compat); + + if (offset < 0) + return offset; + + return fdt_set_node_status(fdt, offset, status); +} + +/** + * fdt_set_status_by_pathf: Set node status for node given by sprintf-formatted + * path + * + * @fdt: ptr to device tree + * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED, FDT_STATUS_FAIL + * @fmt, ...: path format string and arguments to pass to sprintf + */ +int fdt_set_status_by_pathf(void *fdt, enum fdt_status status, const char *fmt, + ...) +{ + va_list ap; + int offset; + + va_start(ap, fmt); + offset = vnode_offset_by_pathf(fdt, fmt, ap); + va_end(ap); + + if (offset < 0) + return offset; + + return fdt_set_node_status(fdt, offset, status); +} + #if defined(CONFIG_VIDEO) || defined(CONFIG_LCD) int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf) { diff --git a/include/fdt_support.h b/include/fdt_support.h index 850c860bd4..d40586725b 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -285,8 +285,13 @@ int fdt_get_dma_range(const void *blob, int node_offset, phys_addr_t *cpu, int fdt_node_offset_by_compat_reg(void *blob, const char *compat, phys_addr_t compat_off); +int fdt_node_offset_by_pathf(void *blob, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle); unsigned int fdt_create_phandle(void *fdt, int nodeoffset); +unsigned int fdt_create_phandle_by_compatible(void *fdt, const char *compat); +unsigned int fdt_create_phandle_by_pathf(void *fdt, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); int fdt_add_edid(void *blob, const char *compat, unsigned char *buf); int fdt_verify_alias_address(void *fdt, int anode, const char *alias, @@ -329,6 +334,31 @@ static inline int fdt_status_fail_by_alias(void *fdt, const char *alias) return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_FAIL); } +int fdt_set_status_by_compatible(void *fdt, const char *compat, + enum fdt_status status); +static inline int fdt_status_okay_by_compatible(void *fdt, const char *compat) +{ + return fdt_set_status_by_compatible(fdt, compat, FDT_STATUS_OKAY); +} +static inline int fdt_status_disabled_by_compatible(void *fdt, + const char *compat) +{ + return fdt_set_status_by_compatible(fdt, compat, FDT_STATUS_DISABLED); +} +static inline int fdt_status_fail_by_compatible(void *fdt, const char *compat) +{ + return fdt_set_status_by_compatible(fdt, compat, FDT_STATUS_FAIL); +} + +int fdt_set_status_by_pathf(void *fdt, enum fdt_status status, const char *fmt, + ...) __attribute__ ((format (printf, 3, 4))); +#define fdt_status_okay_by_pathf(fdt, fmt, ...) \ + fdt_set_status_by_pathf((fdt), FDT_STATUS_OKAY, (fmt), ##__VA_ARGS__) +#define fdt_status_disabled_by_pathf(fdt, fmt, ...) \ + fdt_set_status_by_pathf((fdt), FDT_STATUS_DISABLED, (fmt), ##__VA_ARGS__) +#define fdt_status_fail_by_pathf(fdt, fmt, ...) \ + fdt_set_status_by_pathf((fdt), FDT_STATUS_FAIL, (fmt), ##__VA_ARGS__) + /* Helper to read a big number; size is in cells (not bytes) */ static inline u64 fdt_read_number(const fdt32_t *cell, int size) { -- 2.32.0