From patchwork Mon Jun 20 10:54:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 12887322 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 62280C43334 for ; Mon, 20 Jun 2022 10:57:55 +0000 (UTC) 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:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=A/BLL5Q/eoQmu6kppotvms+dD0mFX/V+4rvX1ziqYVw=; b=bvFNTZLHY11duj U5OkQViBAgmPuK1dXPOSown19rOISC6Jw8aHVyFlRk4FPu4Vsttfmd1QYB+HvQOR1kFqV49Di4dmD m7v9ZJ5yq3SmGXcIhgSuAx6oDHcNOBsJugFYZzKmjvAgQSYGub0LU6V+ME6O89aQwSArR532ZK9h+ qlcIpGuYEgcXK2ZKXfirIC9eNvprIhDb00Di+66XKX5iNLYKqTWFZAn0JFD9ncT1/AUGOQkvuEU23 hVbIaJZW/QqQMx9OSSMvq1admGRStfmEiOwDc6WFnSXEx1N21lB0RkWmKnl9e3Gt1oGMZ2cWdDlX9 WY/LR+QqkYYT/yFG5z+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o3F5Z-00HYsX-EE; Mon, 20 Jun 2022 10:57:01 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o3F5I-00HYir-OJ for linux-arm-kernel@lists.infradead.org; Mon, 20 Jun 2022 10:56:46 +0000 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25K9DtVf018853; Mon, 20 Jun 2022 12:56:18 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=selector1; bh=xX0JQsCAwh/4otRBiTOPMPm4L05+gcoRc59mIHpiUFM=; b=lldkRgFBi6RrJw0Brs+HtKYRPfH3QYGqMWIyVOQuQJBvgy5kF80tPKv7jUYlmV3lQmgu AHR/rUOokpouO0Mj5JKstF5swhXonxCkuGi76QiLEu8CNFt1hK+FU7WBe9bBwhXchC9d /TYYha3y7ux3/gYfV0caWdo1/vR/ViUQtGqHV8hKPgbT5BPiUJ0Ane8NiqQXFO53Dvmb SbdMqbApkjUKh+flEoeC59hEW0wRym6vHKdPp1ynp03ypikihCIfPGK6mYOclrgtnSjI hl5wS8CdLVh14DRb6X48xLviF4XD0DDUHd3u6tBzXEAMeBDgVVOPkApUgEIVobZK6ey5 dg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3gtp31rmrc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 20 Jun 2022 12:56:18 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 706FB100034; Mon, 20 Jun 2022 12:56:16 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 6AC3B21BF7F; Mon, 20 Jun 2022 12:56:16 +0200 (CEST) Received: from localhost (10.75.127.48) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 20 Jun 2022 12:56:16 +0200 From: Alain Volmat To: , CC: , , , , , , , , , , , Subject: [PATCH 1/4] dt-bindings: i2c: st,stm32-i2c: don't mandate a reset line Date: Mon, 20 Jun 2022 12:54:02 +0200 Message-ID: <20220620105405.145959-2-alain.volmat@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220620105405.145959-1-alain.volmat@foss.st.com> References: <20220620105405.145959-1-alain.volmat@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-20_05,2022-06-17_01,2022-02-23_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220620_035645_138383_BB71AE16 X-CRM114-Status: GOOD ( 12.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Update the dt-bindings of the i2c-stm32 drivers to avoid the needs for a reset property in the device-tree. Signed-off-by: Alain Volmat --- Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml | 1 - 1 file changed, 1 deletion(-) diff --git a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml index dccbb18b6dc0..8879144fbbfb 100644 --- a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml @@ -94,7 +94,6 @@ required: - compatible - reg - interrupts - - resets - clocks unevaluatedProperties: false From patchwork Mon Jun 20 10:54:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 12887320 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 53BA1C43334 for ; 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Mon, 20 Jun 2022 12:56:18 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id B85DA100038; Mon, 20 Jun 2022 12:56:16 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id B3B3D21D380; Mon, 20 Jun 2022 12:56:16 +0200 (CEST) Received: from localhost (10.75.127.51) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 20 Jun 2022 12:56:16 +0200 From: Alain Volmat To: , CC: , , , , , , , , , , , Subject: [PATCH 2/4] i2c: stm32: only perform a reset if there is a reset property Date: Mon, 20 Jun 2022 12:54:03 +0200 Message-ID: <20220620105405.145959-3-alain.volmat@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220620105405.145959-1-alain.volmat@foss.st.com> References: <20220620105405.145959-1-alain.volmat@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.51] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-20_05,2022-06-17_01,2022-02-23_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220620_035638_091246_B77F8AAE X-CRM114-Status: GOOD ( 16.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Allow the driver to properly initialize even if there is no reset property given. In such case reset control is not done and initialization proceed. Signed-off-by: Alain Volmat Reviewed-by: Pierre-Yves MORDRET --- drivers/i2c/busses/i2c-stm32f7.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index 6d4aa64b195d..b29d8e476342 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -2138,13 +2138,14 @@ static int stm32f7_i2c_probe(struct platform_device *pdev) rst = devm_reset_control_get(&pdev->dev, NULL); if (IS_ERR(rst)) { - ret = dev_err_probe(&pdev->dev, PTR_ERR(rst), - "Error: Missing reset ctrl\n"); - goto clk_free; + ret = PTR_ERR(rst); + if (ret == -EPROBE_DEFER) + goto clk_free; + } else { + reset_control_assert(rst); + udelay(2); + reset_control_deassert(rst); } - reset_control_assert(rst); - udelay(2); - reset_control_deassert(rst); i2c_dev->dev = &pdev->dev; From patchwork Mon Jun 20 10:54:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 12887323 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D9743C43334 for ; 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Mon, 20 Jun 2022 12:56:18 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 17944100039; Mon, 20 Jun 2022 12:56:17 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 1151C21D381; Mon, 20 Jun 2022 12:56:17 +0200 (CEST) Received: from localhost (10.75.127.49) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 20 Jun 2022 12:56:16 +0200 From: Alain Volmat To: , CC: , , , , , , , , , , , Subject: [PATCH 3/4] dt-bindings: i2c: st,stm32-i2c: add entry for stm32mp13 Date: Mon, 20 Jun 2022 12:54:04 +0200 Message-ID: <20220620105405.145959-4-alain.volmat@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220620105405.145959-1-alain.volmat@foss.st.com> References: <20220620105405.145959-1-alain.volmat@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-20_05,2022-06-17_01,2022-02-23_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220620_035645_288276_EB04D41E X-CRM114-Status: GOOD ( 13.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add the new compatible for the stm32mp13. Signed-off-by: Alain Volmat --- Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml index 8879144fbbfb..d8ecfb39dc01 100644 --- a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml @@ -17,6 +17,7 @@ allOf: contains: enum: - st,stm32f7-i2c + - st,stm32mp13-i2c - st,stm32mp15-i2c then: properties: @@ -45,6 +46,7 @@ properties: enum: - st,stm32f4-i2c - st,stm32f7-i2c + - st,stm32mp13-i2c - st,stm32mp15-i2c reg: From patchwork Mon Jun 20 10:54:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 12887325 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A887CCCA479 for ; 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Mon, 20 Jun 2022 12:57:47 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 66ED510002A; Mon, 20 Jun 2022 12:57:47 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 620FE217B89; Mon, 20 Jun 2022 12:57:47 +0200 (CEST) Received: from localhost (10.75.127.48) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.20; Mon, 20 Jun 2022 12:57:47 +0200 From: Alain Volmat To: , CC: , , , , , , , , , , , Subject: [PATCH 4/4] i2c: stm32: add support for the STM32MP13 soc Date: Mon, 20 Jun 2022 12:54:05 +0200 Message-ID: <20220620105405.145959-5-alain.volmat@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220620105405.145959-1-alain.volmat@foss.st.com> References: <20220620105405.145959-1-alain.volmat@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG2NODE3.st.com (10.75.127.6) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-20_05,2022-06-17_01,2022-02-23_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220620_035754_631015_689A2451 X-CRM114-Status: GOOD ( 14.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a new compatible for the stm32mp13. Fast Mode Plus control register address differ from the one for STM32MP15. Signed-off-by: Alain Volmat Reviewed-by: Pierre-Yves MORDRET --- drivers/i2c/busses/i2c-stm32f7.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index b29d8e476342..9946b330ddce 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -410,6 +410,12 @@ static const struct stm32f7_i2c_setup stm32mp15_setup = { .fmp_clr_offset = 0x40, }; +static const struct stm32f7_i2c_setup stm32mp13_setup = { + .rise_time = STM32F7_I2C_RISE_TIME_DEFAULT, + .fall_time = STM32F7_I2C_FALL_TIME_DEFAULT, + .fmp_clr_offset = 0x4, +}; + static inline void stm32f7_i2c_set_bits(void __iomem *reg, u32 mask) { writel_relaxed(readl_relaxed(reg) | mask, reg); @@ -2469,6 +2475,7 @@ static const struct dev_pm_ops stm32f7_i2c_pm_ops = { static const struct of_device_id stm32f7_i2c_match[] = { { .compatible = "st,stm32f7-i2c", .data = &stm32f7_setup}, { .compatible = "st,stm32mp15-i2c", .data = &stm32mp15_setup}, + { .compatible = "st,stm32mp13-i2c", .data = &stm32mp13_setup}, {}, }; MODULE_DEVICE_TABLE(of, stm32f7_i2c_match);