From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 02 Jan 2024 12:27:50 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rKcw2-000WNk-39 for lore@lore.pengutronix.de; Tue, 02 Jan 2024 12:27:50 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rKcw1-0005sU-Va for lore@pengutronix.de; Tue, 02 Jan 2024 12:27:50 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=cRYFFRZ5ofmIdH9JddeA6DrFc4k+cSCwL7i1mm2Y9mA=; b=DiZJiA3rY15M8M kOo7yB4TC0/HcmltEOOrXgejK52ho1sR8kiIklGwQUji5EnDZb7Oip3EzBop1bO01qiobaSYitpie oR1YtHRjoZnYLib7pTg4cP3whsgcdXzepr57ftTK5I9gY9cU7eE1c84/r2jMi+/mx8xJEjzDKGRwJ k8u3oGk17vWn0jGf7pC357I9H5FviwjTSuv6pIPBcrOyO5pNlpW91uZEqfTuo2u8DFxUlhktQOHWw mW3DJS8dX6tYF5OawjHHqC4ggZWdOOsw6bDMYiRVz6JVQ5yTxhxy/Rx5AJuXKHMCCyLPknbr006Z3 Mc1hQeqpEYRHmWamoHGg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rKcuz-007iGU-2e; Tue, 02 Jan 2024 11:26:45 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rKcuw-007iG7-2T for barebox@lists.infradead.org; Tue, 02 Jan 2024 11:26:44 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rKcut-0005kZ-8V; Tue, 02 Jan 2024 12:26:39 +0100 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rKcur-003Aar-PI; Tue, 02 Jan 2024 12:26:38 +0100 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rKcus-001KhD-2b; Tue, 02 Jan 2024 12:26:38 +0100 From: Sascha Hauer To: Barebox List Date: Tue, 2 Jan 2024 12:26:38 +0100 Message-Id: <20240102112638.317875-1-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240102_032643_108125_32EAB1A0 X-CRM114-Status: GOOD ( 10.83 ) 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: , Cc: Ahmad Fatoum , bst@pengutronix.de Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::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.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-6.0 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, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH] i2c: add pmic_reg_read8() for PBL use X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) From: Bastian Krause Add a common PMIC read function to PBL which allows easy porting of U-Boot's pmic_reg_read() in lowlevel board code. Signed-off-by: Bastian Krause Reviewed-by: Ahmad Fatoum Link: https://lore.barebox.org/20231220104739.10700-1-bst@pengutronix.de Signed-off-by: Sascha Hauer --- include/pbl/pmic.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/pbl/pmic.h b/include/pbl/pmic.h index 695e47a564..91c5be3ff3 100644 --- a/include/pbl/pmic.h +++ b/include/pbl/pmic.h @@ -9,6 +9,27 @@ struct pmic_config { u8 val; }; +static inline void pmic_reg_read8(struct pbl_i2c *i2c, int addr, u8 reg, u8 *val) +{ + int ret; + struct i2c_msg msg[] = { + { + .addr = addr, + .buf = ®, + .len = 1, + }, { + .addr = addr, + .flags = I2C_M_RD, + .buf = val, + .len = 1, + }, + }; + + ret = pbl_i2c_xfer(i2c, msg, ARRAY_SIZE(msg)); + if (ret != ARRAY_SIZE(msg)) + pr_err("Failed to read from pmic@%x: %d\n", addr, ret); +} + static void pmic_reg_write8(struct pbl_i2c *i2c, int addr, u8 reg, u8 val) { int ret; -- 2.39.2