From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 02 Jun 2021 12:01:18 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1loNgc-0000gC-KK for lore@lore.pengutronix.de; Wed, 02 Jun 2021 12:01:18 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1loNgW-0001Wf-HZ for lore@pengutronix.de; Wed, 02 Jun 2021 12:01:18 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2osvao7dQLAtvnDATXdGRnR1tjv+XqgACfWI/vjPFI8=; b=oxtRX8ACl05nJ0 2LdT5kVxSzfhVX1HsnkSUKuVbUM3T8X3/2UZ+jEC/98xwwBhpD24YRQRSooZPtTBWzHD/7c8sNHzJ TsybPeKfFVGDF7o9wWiITLsf3bphIuWHVfQBBC8RWt2BGrAGUrJrCp53Uap4ED/UKJpagVLhQDman FpWt84aI9vsBnqwTsYlg/ZUA5XdIcNY5YhYn45KR+KX1KqTfcLkQqB6ovyIjhJxvBHn0ek5FteodW avYKQjgVi078l/XPsUtB/lJJ0GLlMoDjuaD2Kz6XJ6T3wEhdykanU4bWBghpRS1lRdzWQRSHird02 spzgvGTIlJowZ5OcSTsg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1loNem-0037Ww-GO; Wed, 02 Jun 2021 09:59:24 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1loNal-0036Fd-Bo for barebox@lists.infradead.org; Wed, 02 Jun 2021 09:55:18 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1loNai-0000MP-Nk; Wed, 02 Jun 2021 11:55:12 +0200 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1loNah-0003AJ-0d; Wed, 02 Jun 2021 11:55:11 +0200 From: Sascha Hauer To: Barebox List Date: Wed, 2 Jun 2021 11:55:05 +0200 Message-Id: <20210602095507.24609-23-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210602095507.24609-1-s.hauer@pengutronix.de> References: <20210602095507.24609-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210602_025515_506941_4AB7921C X-CRM114-Status: GOOD ( 12.61 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.8 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 22/24] regmap: Add regmap_read_poll_timeout X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Signed-off-by: Sascha Hauer --- include/regmap.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/include/regmap.h b/include/regmap.h index b43cd936fa..057370afc7 100644 --- a/include/regmap.h +++ b/include/regmap.h @@ -116,4 +116,28 @@ int regmap_write_bits(struct regmap *map, unsigned int reg, int regmap_update_bits(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val); +/** + * regmap_read_poll_timeout - Poll until a condition is met or a timeout occurs + * + * @map: Regmap to read from + * @addr: Address to poll + * @val: Unsigned integer variable to read the value into + * @cond: Break condition (usually involving @val) + * @timeout_us: Timeout in us, 0 means never timeout + * + * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read + * error return value in case of a error read. In the two former cases, + * the last read value at @addr is stored in @val. Must not be called + * from atomic context if sleep_us or timeout_us are used. + * + * This is modelled after the readx_poll_timeout macros in linux/iopoll.h. + */ +#define regmap_read_poll_timeout(map, addr, val, cond, timeout_us) \ +({ \ + int __ret, __tmp; \ + __tmp = read_poll_timeout(regmap_read, __ret, __ret || (cond), \ + timeout_us, (map), (addr), &(val)); \ + __ret ?: __tmp; \ +}) + #endif /* __REGMAP_H */ -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox