From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 05 Aug 2022 14:57:31 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oJwtM-00CWQ9-Sd for lore@lore.pengutronix.de; Fri, 05 Aug 2022 14:57:31 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oJwtN-0005kB-Et for lore@pengutronix.de; Fri, 05 Aug 2022 14:57:30 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tf8OrzdpAeIpe0oy8e+srO3zZLHjKLfuNIq3P5xRkrk=; b=zvalxeYSBTcaycwsC0VTnJe0SK DKH/aLFBCVob+0JqjYU2Ui8cUMDyOACSHRQehXDGrjj+2AxqxUWvTpTieuYoXyaNZ9q9B0ZqRbTWD rTSqEp9DbqiYLU8wt90eMslDfQPQuyOvJgibKzIP2hulLjgQV3jmX2vE/Ygqna/Pl3quvfdwHC9hS UvgjpQLuefREiQEjC5nJyTYyDJGBePYuRBdvSU3fCwYCNzwybpy2m6JyfEjkBIV54l/25dhUEX55c pja1crxDK8qF8AITdVsxXRT60hTzpmw/05++cA0GlT6nqmRlQaaA7HqYbDtB7732LEvlCSmQBOfbh tAIW+hSg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oJwrn-00FApa-MZ; Fri, 05 Aug 2022 12:55:51 +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 1oJwqQ-00FA5a-Iw for barebox@lists.infradead.org; Fri, 05 Aug 2022 12:54:28 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oJwqH-0004bc-C9; Fri, 05 Aug 2022 14:54:17 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1oJwqE-001tgV-Ac; Fri, 05 Aug 2022 14:54:16 +0200 Received: from afa by dude04.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1oJwqF-004w1T-DN; Fri, 05 Aug 2022 14:54:15 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: mfe@pengutronix.de, Ahmad Fatoum Date: Fri, 5 Aug 2022 14:54:12 +0200 Message-Id: <20220805125413.1046239-9-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220805125413.1046239-1-a.fatoum@pengutronix.de> References: <20220805125413.1046239-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220805_055426_650985_4EF6D657 X-CRM114-Status: GOOD ( 14.52 ) 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: , 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.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 8/9] i2c: add 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.ext.pengutronix.de) We have much duplication in the i.MX8M boards related to PMIC setup, add a common header to cut down on it. Signed-off-by: Ahmad Fatoum --- include/pbl/i2c.h | 16 ++++++++++++++++ include/pbl/pmic.h | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) create mode 100644 include/pbl/pmic.h diff --git a/include/pbl/i2c.h b/include/pbl/i2c.h index 1f26e3dfc6ca..d9910f531f53 100644 --- a/include/pbl/i2c.h +++ b/include/pbl/i2c.h @@ -18,4 +18,20 @@ static inline int pbl_i2c_xfer(struct pbl_i2c *i2c, struct pbl_i2c *imx8m_i2c_early_init(void __iomem *regs); struct pbl_i2c *ls1046_i2c_init(void __iomem *regs); +static inline int i2c_dev_probe(struct pbl_i2c *i2c, int addr, bool onebyte) +{ + u8 buf[1]; + struct i2c_msg msgs[] = { + { + .addr = addr, + .buf = buf, + .flags = I2C_M_RD, + .len = onebyte, + }, + }; + + return pbl_i2c_xfer(i2c, msgs, 1) == 1 ? 0 : -ENODEV; +} + + #endif /* __I2C_EARLY_H */ diff --git a/include/pbl/pmic.h b/include/pbl/pmic.h new file mode 100644 index 000000000000..0f882c5649d9 --- /dev/null +++ b/include/pbl/pmic.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PBL_PMIC_H_ +#define __PBL_PMIC_H_ + +#include + +struct pmic_config { + u8 reg; + u8 val; +}; + +static void pmic_reg_write(struct pbl_i2c *i2c, int addr, u8 reg, u8 val) +{ + int ret; + u8 buf[32]; + struct i2c_msg msgs[] = { + { + .addr = addr, + .buf = buf, + }, + }; + + buf[0] = reg; + buf[1] = val; + + msgs[0].len = 2; + + ret = pbl_i2c_xfer(i2c, msgs, ARRAY_SIZE(msgs)); + if (ret != 1) + pr_err("Failed to write to pmic@%x: %d\n", addr, ret); +} + +static inline void pmic_configure(struct pbl_i2c *i2c, u8 addr, + const struct pmic_config *config, + size_t config_len) +{ + for (; config_len--; config++) + pmic_reg_write(i2c, addr, config->reg, config->val); +} + +#endif -- 2.30.2