From patchwork Tue Apr 2 12:35:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UWlpIFdhbmcgKOeOi+eQqik=?= X-Patchwork-Id: 10881523 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 24A1F17EE for ; Tue, 2 Apr 2019 12:37:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 04F8A20174 for ; Tue, 2 Apr 2019 12:37:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EC8B027D0C; Tue, 2 Apr 2019 12:37:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4E98020174 for ; Tue, 2 Apr 2019 12:37:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc: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:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YwEF+lL/MUxiKaZBxMW+Oi9gHwK54+88YkH2KFMryHc=; b=Z/wp/5tKtlf/j6 AIRJ07Okh72o1dlbCeo3eFnD6+UYvkNKGvwSCAngXKZHcwBXKouU6Db4H+I/p9Pl3lmspx0kVYjWK C8qmziEDxFKvOmv23RPrbzZE0tYL1Yy0/fm78tXIgeltXXplSkKPEENTc4uxNiU+wL7wryXUL6dYM 3w+6OHzesgv6bjCzf/RYFmRILmmuZW5OBDdXGEgKbp01J2uo96B7ZttgC76SDcJNpwpHQoZnvfu05 FWFskC3HEsggwUDOfwslrumkoMSJku8OiF4oaN4UBU695YYKyH3iDRnaztHA/iWyXv7AJqK6XuLPV RxEiaflLecwASFyCnvFA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hBIfV-00048z-6U; Tue, 02 Apr 2019 12:37:33 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hBIeQ-0002dH-4U; Tue, 02 Apr 2019 12:36:34 +0000 X-UUID: eb1106742d994c0d827516eaa38f0121-20190402 X-UUID: eb1106742d994c0d827516eaa38f0121-20190402 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 312613630; Tue, 02 Apr 2019 04:36:19 -0800 Received: from mtkmbs03n2.mediatek.inc (172.21.101.182) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 05:36:17 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 20:36:08 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 2 Apr 2019 20:36:07 +0800 From: Qii Wang To: Subject: [PATCH RESEND v6 1/6] i2c: mediatek: Add offsets array for new i2c registers Date: Tue, 2 Apr 2019 20:35:55 +0800 Message-ID: <1554208560-14817-2-git-send-email-qii.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> References: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 15069EB10384B0D3488932EE6C5853B027940711E9C803EE382F49BCAAA1A9AA2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_053626_528165_1262CD73 X-CRM114-Status: GOOD ( 13.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, qii.wang@mediatek.com, srv_heupstream@mediatek.com, robh@kernel.org, leilk.liu@mediatek.com, xinping.qian@mediatek.com, linux-kernel@vger.kernel.org, liguo.zhang@mediatek.com, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP New i2c registers would have different offsets, so we use different offsets array to distinguish different i2c registers version. Signed-off-by: Qii Wang Reviewed-by: Matthias Brugger --- drivers/i2c/busses/i2c-mt65xx.c | 163 +++++++++++++++++++++++++-------------- 1 file changed, 104 insertions(+), 59 deletions(-) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 684d651..be36018 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -106,34 +106,62 @@ enum mtk_trans_op { }; enum I2C_REGS_OFFSET { - OFFSET_DATA_PORT = 0x0, - OFFSET_SLAVE_ADDR = 0x04, - OFFSET_INTR_MASK = 0x08, - OFFSET_INTR_STAT = 0x0c, - OFFSET_CONTROL = 0x10, - OFFSET_TRANSFER_LEN = 0x14, - OFFSET_TRANSAC_LEN = 0x18, - OFFSET_DELAY_LEN = 0x1c, - OFFSET_TIMING = 0x20, - OFFSET_START = 0x24, - OFFSET_EXT_CONF = 0x28, - OFFSET_FIFO_STAT = 0x30, - OFFSET_FIFO_THRESH = 0x34, - OFFSET_FIFO_ADDR_CLR = 0x38, - OFFSET_IO_CONFIG = 0x40, - OFFSET_RSV_DEBUG = 0x44, - OFFSET_HS = 0x48, - OFFSET_SOFTRESET = 0x50, - OFFSET_DCM_EN = 0x54, - OFFSET_PATH_DIR = 0x60, - OFFSET_DEBUGSTAT = 0x64, - OFFSET_DEBUGCTRL = 0x68, - OFFSET_TRANSFER_LEN_AUX = 0x6c, - OFFSET_CLOCK_DIV = 0x70, + OFFSET_DATA_PORT, + OFFSET_SLAVE_ADDR, + OFFSET_INTR_MASK, + OFFSET_INTR_STAT, + OFFSET_CONTROL, + OFFSET_TRANSFER_LEN, + OFFSET_TRANSAC_LEN, + OFFSET_DELAY_LEN, + OFFSET_TIMING, + OFFSET_START, + OFFSET_EXT_CONF, + OFFSET_FIFO_STAT, + OFFSET_FIFO_THRESH, + OFFSET_FIFO_ADDR_CLR, + OFFSET_IO_CONFIG, + OFFSET_RSV_DEBUG, + OFFSET_HS, + OFFSET_SOFTRESET, + OFFSET_DCM_EN, + OFFSET_PATH_DIR, + OFFSET_DEBUGSTAT, + OFFSET_DEBUGCTRL, + OFFSET_TRANSFER_LEN_AUX, + OFFSET_CLOCK_DIV, +}; + +static const u16 mt_i2c_regs_v1[] = { + [OFFSET_DATA_PORT] = 0x0, + [OFFSET_SLAVE_ADDR] = 0x4, + [OFFSET_INTR_MASK] = 0x8, + [OFFSET_INTR_STAT] = 0xc, + [OFFSET_CONTROL] = 0x10, + [OFFSET_TRANSFER_LEN] = 0x14, + [OFFSET_TRANSAC_LEN] = 0x18, + [OFFSET_DELAY_LEN] = 0x1c, + [OFFSET_TIMING] = 0x20, + [OFFSET_START] = 0x24, + [OFFSET_EXT_CONF] = 0x28, + [OFFSET_FIFO_STAT] = 0x30, + [OFFSET_FIFO_THRESH] = 0x34, + [OFFSET_FIFO_ADDR_CLR] = 0x38, + [OFFSET_IO_CONFIG] = 0x40, + [OFFSET_RSV_DEBUG] = 0x44, + [OFFSET_HS] = 0x48, + [OFFSET_SOFTRESET] = 0x50, + [OFFSET_DCM_EN] = 0x54, + [OFFSET_PATH_DIR] = 0x60, + [OFFSET_DEBUGSTAT] = 0x64, + [OFFSET_DEBUGCTRL] = 0x68, + [OFFSET_TRANSFER_LEN_AUX] = 0x6c, + [OFFSET_CLOCK_DIV] = 0x70, }; struct mtk_i2c_compatible { const struct i2c_adapter_quirks *quirks; + const u16 *regs; unsigned char pmic_i2c: 1; unsigned char dcm: 1; unsigned char auto_restart: 1; @@ -181,6 +209,7 @@ struct mtk_i2c { }; static const struct mtk_i2c_compatible mt2712_compat = { + .regs = mt_i2c_regs_v1, .pmic_i2c = 0, .dcm = 1, .auto_restart = 1, @@ -191,6 +220,7 @@ struct mtk_i2c { static const struct mtk_i2c_compatible mt6577_compat = { .quirks = &mt6577_i2c_quirks, + .regs = mt_i2c_regs_v1, .pmic_i2c = 0, .dcm = 1, .auto_restart = 0, @@ -201,6 +231,7 @@ struct mtk_i2c { static const struct mtk_i2c_compatible mt6589_compat = { .quirks = &mt6577_i2c_quirks, + .regs = mt_i2c_regs_v1, .pmic_i2c = 1, .dcm = 0, .auto_restart = 0, @@ -211,6 +242,7 @@ struct mtk_i2c { static const struct mtk_i2c_compatible mt7622_compat = { .quirks = &mt7622_i2c_quirks, + .regs = mt_i2c_regs_v1, .pmic_i2c = 0, .dcm = 1, .auto_restart = 1, @@ -220,6 +252,7 @@ struct mtk_i2c { }; static const struct mtk_i2c_compatible mt8173_compat = { + .regs = mt_i2c_regs_v1, .pmic_i2c = 0, .dcm = 1, .auto_restart = 1, @@ -238,6 +271,17 @@ struct mtk_i2c { }; MODULE_DEVICE_TABLE(of, mtk_i2c_of_match); +static u16 mtk_i2c_readw(struct mtk_i2c *i2c, enum I2C_REGS_OFFSET reg) +{ + return readw(i2c->base + i2c->dev_comp->regs[reg]); +} + +static void mtk_i2c_writew(struct mtk_i2c *i2c, u16 val, + enum I2C_REGS_OFFSET reg) +{ + writew(val, i2c->base + i2c->dev_comp->regs[reg]); +} + static int mtk_i2c_clock_enable(struct mtk_i2c *i2c) { int ret; @@ -278,31 +322,31 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c) { u16 control_reg; - writew(I2C_SOFT_RST, i2c->base + OFFSET_SOFTRESET); + mtk_i2c_writew(i2c, I2C_SOFT_RST, OFFSET_SOFTRESET); /* Set ioconfig */ if (i2c->use_push_pull) - writew(I2C_IO_CONFIG_PUSH_PULL, i2c->base + OFFSET_IO_CONFIG); + mtk_i2c_writew(i2c, I2C_IO_CONFIG_PUSH_PULL, OFFSET_IO_CONFIG); else - writew(I2C_IO_CONFIG_OPEN_DRAIN, i2c->base + OFFSET_IO_CONFIG); + mtk_i2c_writew(i2c, I2C_IO_CONFIG_OPEN_DRAIN, OFFSET_IO_CONFIG); if (i2c->dev_comp->dcm) - writew(I2C_DCM_DISABLE, i2c->base + OFFSET_DCM_EN); + mtk_i2c_writew(i2c, I2C_DCM_DISABLE, OFFSET_DCM_EN); if (i2c->dev_comp->timing_adjust) - writew(I2C_DEFAULT_CLK_DIV - 1, i2c->base + OFFSET_CLOCK_DIV); + mtk_i2c_writew(i2c, I2C_DEFAULT_CLK_DIV - 1, OFFSET_CLOCK_DIV); - writew(i2c->timing_reg, i2c->base + OFFSET_TIMING); - writew(i2c->high_speed_reg, i2c->base + OFFSET_HS); + mtk_i2c_writew(i2c, i2c->timing_reg, OFFSET_TIMING); + mtk_i2c_writew(i2c, i2c->high_speed_reg, OFFSET_HS); /* If use i2c pin from PMIC mt6397 side, need set PATH_DIR first */ if (i2c->have_pmic) - writew(I2C_CONTROL_WRAPPER, i2c->base + OFFSET_PATH_DIR); + mtk_i2c_writew(i2c, I2C_CONTROL_WRAPPER, OFFSET_PATH_DIR); control_reg = I2C_CONTROL_ACKERR_DET_EN | I2C_CONTROL_CLK_EXT_EN | I2C_CONTROL_DMA_EN; - writew(control_reg, i2c->base + OFFSET_CONTROL); - writew(I2C_DELAY_LEN, i2c->base + OFFSET_DELAY_LEN); + mtk_i2c_writew(i2c, control_reg, OFFSET_CONTROL); + mtk_i2c_writew(i2c, I2C_DELAY_LEN, OFFSET_DELAY_LEN); writel(I2C_DMA_HARD_RST, i2c->pdmabase + OFFSET_RST); udelay(50); @@ -454,7 +498,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs, reinit_completion(&i2c->msg_complete); - control_reg = readw(i2c->base + OFFSET_CONTROL) & + control_reg = mtk_i2c_readw(i2c, OFFSET_CONTROL) & ~(I2C_CONTROL_DIR_CHANGE | I2C_CONTROL_RS); if ((i2c->speed_hz > MAX_FS_MODE_SPEED) || (left_num >= 1)) control_reg |= I2C_CONTROL_RS; @@ -462,40 +506,41 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs, if (i2c->op == I2C_MASTER_WRRD) control_reg |= I2C_CONTROL_DIR_CHANGE | I2C_CONTROL_RS; - writew(control_reg, i2c->base + OFFSET_CONTROL); + mtk_i2c_writew(i2c, control_reg, OFFSET_CONTROL); /* set start condition */ if (i2c->speed_hz <= I2C_DEFAULT_SPEED) - writew(I2C_ST_START_CON, i2c->base + OFFSET_EXT_CONF); + mtk_i2c_writew(i2c, I2C_ST_START_CON, OFFSET_EXT_CONF); else - writew(I2C_FS_START_CON, i2c->base + OFFSET_EXT_CONF); + mtk_i2c_writew(i2c, I2C_FS_START_CON, OFFSET_EXT_CONF); addr_reg = i2c_8bit_addr_from_msg(msgs); - writew(addr_reg, i2c->base + OFFSET_SLAVE_ADDR); + mtk_i2c_writew(i2c, addr_reg, OFFSET_SLAVE_ADDR); /* Clear interrupt status */ - writew(restart_flag | I2C_HS_NACKERR | I2C_ACKERR | - I2C_TRANSAC_COMP, i2c->base + OFFSET_INTR_STAT); - writew(I2C_FIFO_ADDR_CLR, i2c->base + OFFSET_FIFO_ADDR_CLR); + mtk_i2c_writew(i2c, restart_flag | I2C_HS_NACKERR | I2C_ACKERR | + I2C_TRANSAC_COMP, OFFSET_INTR_STAT); + + mtk_i2c_writew(i2c, I2C_FIFO_ADDR_CLR, OFFSET_FIFO_ADDR_CLR); /* Enable interrupt */ - writew(restart_flag | I2C_HS_NACKERR | I2C_ACKERR | - I2C_TRANSAC_COMP, i2c->base + OFFSET_INTR_MASK); + mtk_i2c_writew(i2c, restart_flag | I2C_HS_NACKERR | I2C_ACKERR | + I2C_TRANSAC_COMP, OFFSET_INTR_MASK); /* Set transfer and transaction len */ if (i2c->op == I2C_MASTER_WRRD) { if (i2c->dev_comp->aux_len_reg) { - writew(msgs->len, i2c->base + OFFSET_TRANSFER_LEN); - writew((msgs + 1)->len, i2c->base + - OFFSET_TRANSFER_LEN_AUX); + mtk_i2c_writew(i2c, msgs->len, OFFSET_TRANSFER_LEN); + mtk_i2c_writew(i2c, (msgs + 1)->len, + OFFSET_TRANSFER_LEN_AUX); } else { - writew(msgs->len | ((msgs + 1)->len) << 8, - i2c->base + OFFSET_TRANSFER_LEN); + mtk_i2c_writew(i2c, msgs->len | ((msgs + 1)->len) << 8, + OFFSET_TRANSFER_LEN); } - writew(I2C_WRRD_TRANAC_VALUE, i2c->base + OFFSET_TRANSAC_LEN); + mtk_i2c_writew(i2c, I2C_WRRD_TRANAC_VALUE, OFFSET_TRANSAC_LEN); } else { - writew(msgs->len, i2c->base + OFFSET_TRANSFER_LEN); - writew(num, i2c->base + OFFSET_TRANSAC_LEN); + mtk_i2c_writew(i2c, msgs->len, OFFSET_TRANSFER_LEN); + mtk_i2c_writew(i2c, num, OFFSET_TRANSAC_LEN); } /* Prepare buffer data to start transfer */ @@ -607,14 +652,14 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs, if (left_num >= 1) start_reg |= I2C_RS_MUL_CNFG; } - writew(start_reg, i2c->base + OFFSET_START); + mtk_i2c_writew(i2c, start_reg, OFFSET_START); ret = wait_for_completion_timeout(&i2c->msg_complete, i2c->adap.timeout); /* Clear interrupt mask */ - writew(~(restart_flag | I2C_HS_NACKERR | I2C_ACKERR | - I2C_TRANSAC_COMP), i2c->base + OFFSET_INTR_MASK); + mtk_i2c_writew(i2c, ~(restart_flag | I2C_HS_NACKERR | I2C_ACKERR | + I2C_TRANSAC_COMP), OFFSET_INTR_MASK); if (i2c->op == I2C_MASTER_WR) { dma_unmap_single(i2c->dev, wpaddr, @@ -724,8 +769,8 @@ static irqreturn_t mtk_i2c_irq(int irqno, void *dev_id) if (i2c->auto_restart) restart_flag = I2C_RS_TRANSFER; - intr_stat = readw(i2c->base + OFFSET_INTR_STAT); - writew(intr_stat, i2c->base + OFFSET_INTR_STAT); + intr_stat = mtk_i2c_readw(i2c, OFFSET_INTR_STAT); + mtk_i2c_writew(i2c, intr_stat, OFFSET_INTR_STAT); /* * when occurs ack error, i2c controller generate two interrupts @@ -737,8 +782,8 @@ static irqreturn_t mtk_i2c_irq(int irqno, void *dev_id) if (i2c->ignore_restart_irq && (i2c->irq_stat & restart_flag)) { i2c->ignore_restart_irq = false; i2c->irq_stat = 0; - writew(I2C_RS_MUL_CNFG | I2C_RS_MUL_TRIG | I2C_TRANSAC_START, - i2c->base + OFFSET_START); + mtk_i2c_writew(i2c, I2C_RS_MUL_CNFG | I2C_RS_MUL_TRIG | + I2C_TRANSAC_START, OFFSET_START); } else { if (i2c->irq_stat & (I2C_TRANSAC_COMP | restart_flag)) complete(&i2c->msg_complete); From patchwork Tue Apr 2 12:35:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UWlpIFdhbmcgKOeOi+eQqik=?= X-Patchwork-Id: 10881505 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9E43813B5 for ; Tue, 2 Apr 2019 12:36:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8555B2844B for ; Tue, 2 Apr 2019 12:36:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8345B28939; Tue, 2 Apr 2019 12:36:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 321762844B for ; 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Tue, 2 Apr 2019 20:36:08 +0800 From: Qii Wang To: Subject: [PATCH RESEND v6 2/6] dt-bindings: i2c: Add Mediatek MT8183 i2c binding Date: Tue, 2 Apr 2019 20:35:56 +0800 Message-ID: <1554208560-14817-3-git-send-email-qii.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> References: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_053621_090553_56F531A8 X-CRM114-Status: UNSURE ( 9.09 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, qii.wang@mediatek.com, srv_heupstream@mediatek.com, robh@kernel.org, leilk.liu@mediatek.com, xinping.qian@mediatek.com, linux-kernel@vger.kernel.org, liguo.zhang@mediatek.com, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add MT8183 i2c binding to binding file. Compare to MT2712 i2c controller, MT8183 has different registers, offsets, and clock. Signed-off-by: Qii Wang Reviewed-by: Matthias Brugger --- Documentation/devicetree/bindings/i2c/i2c-mtk.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt index ee4c324..b052f29 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt @@ -12,13 +12,15 @@ Required properties: "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623 "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629 "mediatek,mt8173-i2c": for MediaTek MT8173 + "mediatek,mt8183-i2c": for MediaTek MT8183 - reg: physical base address of the controller and dma base, length of memory mapped region. - interrupts: interrupt number to the cpu. - clock-div: the fixed value for frequency divider of clock source in i2c module. Each IC may be different. - clocks: clock name from clock manager - - clock-names: Must include "main" and "dma", if enable have-pmic need include + - clock-names: Must include "main" and "dma", "arb" is for multi-master that + one bus has more than two i2c controllers, if enable have-pmic need include "pmic" extra. Optional properties: From patchwork Tue Apr 2 12:35:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UWlpIFdhbmcgKOeOi+eQqik=?= X-Patchwork-Id: 10881625 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D2DE915AC for ; Tue, 2 Apr 2019 12:52:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B7DB42889E for ; Tue, 2 Apr 2019 12:52:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AC072288C7; Tue, 2 Apr 2019 12:52:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3DAA92889E for ; Tue, 2 Apr 2019 12:52:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc: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:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=i6u1vb5g/nevg5dU0nAwghwGOfjD+xtUuUgt2NHXufQ=; b=PUIRQ6SLTFeSXc lXoIZHrdMwzRrTAgikCC2pFzqHxe41RIAE4H6FzHh3IhysQYJ2cf7uImuTmmktSjWm6nTJ8XVtUJj eBgeCw1PG2kD3ygIpZepeSfLj/+W6SDTLSbwYx/u6JQHDK6cxdnCYDqv65IPe61S/Yi/PuimEE1lp D+T2yFv2m+Rs4IBFBDg/gSZeIvL1ZICC/3F67GZU2gyR72c3LzCX8Op8fReJj5amFtP+68r41gt2Z 7wqBV5c7j/MwtWBR1d8tWsQH2cfaXqya+NYaRszY9OPKH5qT812Mc06nNP8aizHsS7GATyNgEV/qT 3m1INkRPTWJZeANBSFfw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hBIuD-0006Dm-FO; Tue, 02 Apr 2019 12:52:45 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hBIeO-0002dB-1R; Tue, 02 Apr 2019 12:36:26 +0000 X-UUID: bc54b4cf854d452ba5eb47d576632dc1-20190402 X-UUID: bc54b4cf854d452ba5eb47d576632dc1-20190402 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1466872864; Tue, 02 Apr 2019 04:36:19 -0800 Received: from mtkmbs03n2.mediatek.inc (172.21.101.182) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 05:36:18 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 20:36:09 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 2 Apr 2019 20:36:09 +0800 From: Qii Wang To: Subject: [PATCH RESEND v6 3/6] i2c: mediatek: Add arb clock in i2c driver Date: Tue, 2 Apr 2019 20:35:57 +0800 Message-ID: <1554208560-14817-4-git-send-email-qii.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> References: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: F667A60E98AAC97AC6022E4B507BD1DDB4F6965D142566EE88B017C13EC2E8D22000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_053624_165854_A18BBCAE X-CRM114-Status: GOOD ( 13.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, qii.wang@mediatek.com, srv_heupstream@mediatek.com, robh@kernel.org, leilk.liu@mediatek.com, xinping.qian@mediatek.com, linux-kernel@vger.kernel.org, liguo.zhang@mediatek.com, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP When two i2c controllers are internally connected to the same GPIO pins, the arb clock is needed to ensure that the waveforms do not interfere with each other. And we also need to enable the interrupt to find arb lost, old i2c controllers also have the bit. Signed-off-by: Qii Wang Reviewed-by: Nicolas Boichat Reviewed-by: Matthias Brugger --- drivers/i2c/busses/i2c-mt65xx.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index be36018..1a7235e 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -35,6 +35,7 @@ #include #define I2C_RS_TRANSFER (1 << 4) +#define I2C_ARB_LOST (1 << 3) #define I2C_HS_NACKERR (1 << 2) #define I2C_ACKERR (1 << 1) #define I2C_TRANSAC_COMP (1 << 0) @@ -181,6 +182,7 @@ struct mtk_i2c { struct clk *clk_main; /* main clock for i2c bus */ struct clk *clk_dma; /* DMA clock for i2c via DMA */ struct clk *clk_pmic; /* PMIC clock for i2c from PMIC */ + struct clk *clk_arb; /* Arbitrator clock for i2c */ bool have_pmic; /* can use i2c pins from PMIC */ bool use_push_pull; /* IO config push-pull mode */ @@ -299,8 +301,18 @@ static int mtk_i2c_clock_enable(struct mtk_i2c *i2c) if (ret) goto err_pmic; } + + if (i2c->clk_arb) { + ret = clk_prepare_enable(i2c->clk_arb); + if (ret) + goto err_arb; + } + return 0; +err_arb: + if (i2c->have_pmic) + clk_disable_unprepare(i2c->clk_pmic); err_pmic: clk_disable_unprepare(i2c->clk_main); err_main: @@ -311,6 +323,9 @@ static int mtk_i2c_clock_enable(struct mtk_i2c *i2c) static void mtk_i2c_clock_disable(struct mtk_i2c *i2c) { + if (i2c->clk_arb) + clk_disable_unprepare(i2c->clk_arb); + if (i2c->have_pmic) clk_disable_unprepare(i2c->clk_pmic); @@ -519,13 +534,13 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs, /* Clear interrupt status */ mtk_i2c_writew(i2c, restart_flag | I2C_HS_NACKERR | I2C_ACKERR | - I2C_TRANSAC_COMP, OFFSET_INTR_STAT); + I2C_ARB_LOST | I2C_TRANSAC_COMP, OFFSET_INTR_STAT); mtk_i2c_writew(i2c, I2C_FIFO_ADDR_CLR, OFFSET_FIFO_ADDR_CLR); /* Enable interrupt */ mtk_i2c_writew(i2c, restart_flag | I2C_HS_NACKERR | I2C_ACKERR | - I2C_TRANSAC_COMP, OFFSET_INTR_MASK); + I2C_ARB_LOST | I2C_TRANSAC_COMP, OFFSET_INTR_MASK); /* Set transfer and transaction len */ if (i2c->op == I2C_MASTER_WRRD) { @@ -659,7 +674,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs, /* Clear interrupt mask */ mtk_i2c_writew(i2c, ~(restart_flag | I2C_HS_NACKERR | I2C_ACKERR | - I2C_TRANSAC_COMP), OFFSET_INTR_MASK); + I2C_ARB_LOST | I2C_TRANSAC_COMP), OFFSET_INTR_MASK); if (i2c->op == I2C_MASTER_WR) { dma_unmap_single(i2c->dev, wpaddr, @@ -884,6 +899,10 @@ static int mtk_i2c_probe(struct platform_device *pdev) return PTR_ERR(i2c->clk_dma); } + i2c->clk_arb = devm_clk_get(&pdev->dev, "arb"); + if (IS_ERR(i2c->clk_arb)) + i2c->clk_arb = NULL; + clk = i2c->clk_main; if (i2c->have_pmic) { i2c->clk_pmic = devm_clk_get(&pdev->dev, "pmic"); From patchwork Tue Apr 2 12:35:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UWlpIFdhbmcgKOeOi+eQqik=?= X-Patchwork-Id: 10881513 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 965C613B5 for ; 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Tue, 02 Apr 2019 12:36:24 +0000 X-UUID: ff265815f7394c2ba547b8eff6113b47-20190402 X-UUID: ff265815f7394c2ba547b8eff6113b47-20190402 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 800735741; Tue, 02 Apr 2019 04:36:13 -0800 Received: from mtkmbs03n1.mediatek.inc (172.21.101.181) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 05:36:12 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n1.mediatek.inc (172.21.101.181) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 20:36:10 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 2 Apr 2019 20:36:10 +0800 From: Qii Wang To: Subject: [PATCH RESEND v6 4/6] i2c: mediatek: Add i2c and apdma sync in i2c driver Date: Tue, 2 Apr 2019 20:35:58 +0800 Message-ID: <1554208560-14817-5-git-send-email-qii.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> References: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_053622_766785_B83FEA4B X-CRM114-Status: UNSURE ( 9.56 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, qii.wang@mediatek.com, srv_heupstream@mediatek.com, robh@kernel.org, leilk.liu@mediatek.com, xinping.qian@mediatek.com, linux-kernel@vger.kernel.org, liguo.zhang@mediatek.com, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP When i2c and apdma use different source clocks, we should enable synchronization between them. Signed-off-by: Qii Wang Reviewed-by: Nicolas Boichat Reviewed-by: Matthias Brugger --- drivers/i2c/busses/i2c-mt65xx.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 1a7235e..6137ad7 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -77,6 +77,8 @@ #define I2C_CONTROL_DIR_CHANGE (0x1 << 4) #define I2C_CONTROL_ACKERR_DET_EN (0x1 << 5) #define I2C_CONTROL_TRANSFER_LEN_CHANGE (0x1 << 6) +#define I2C_CONTROL_DMAACK_EN (0x1 << 8) +#define I2C_CONTROL_ASYNC_MODE (0x1 << 9) #define I2C_CONTROL_WRAPPER (0x1 << 0) #define I2C_DRV_NAME "i2c-mt65xx" @@ -169,6 +171,7 @@ struct mtk_i2c_compatible { unsigned char aux_len_reg: 1; unsigned char support_33bits: 1; unsigned char timing_adjust: 1; + unsigned char dma_sync: 1; }; struct mtk_i2c { @@ -218,6 +221,7 @@ struct mtk_i2c { .aux_len_reg = 1, .support_33bits = 1, .timing_adjust = 1, + .dma_sync = 0, }; static const struct mtk_i2c_compatible mt6577_compat = { @@ -229,6 +233,7 @@ struct mtk_i2c { .aux_len_reg = 0, .support_33bits = 0, .timing_adjust = 0, + .dma_sync = 0, }; static const struct mtk_i2c_compatible mt6589_compat = { @@ -240,6 +245,7 @@ struct mtk_i2c { .aux_len_reg = 0, .support_33bits = 0, .timing_adjust = 0, + .dma_sync = 0, }; static const struct mtk_i2c_compatible mt7622_compat = { @@ -251,6 +257,7 @@ struct mtk_i2c { .aux_len_reg = 1, .support_33bits = 0, .timing_adjust = 0, + .dma_sync = 0, }; static const struct mtk_i2c_compatible mt8173_compat = { @@ -261,6 +268,7 @@ struct mtk_i2c { .aux_len_reg = 1, .support_33bits = 1, .timing_adjust = 0, + .dma_sync = 0, }; static const struct of_device_id mtk_i2c_of_match[] = { @@ -360,6 +368,9 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c) control_reg = I2C_CONTROL_ACKERR_DET_EN | I2C_CONTROL_CLK_EXT_EN | I2C_CONTROL_DMA_EN; + if (i2c->dev_comp->dma_sync) + control_reg |= I2C_CONTROL_DMAACK_EN | I2C_CONTROL_ASYNC_MODE; + mtk_i2c_writew(i2c, control_reg, OFFSET_CONTROL); mtk_i2c_writew(i2c, I2C_DELAY_LEN, OFFSET_DELAY_LEN); From patchwork Tue Apr 2 12:35:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UWlpIFdhbmcgKOeOi+eQqik=?= X-Patchwork-Id: 10881521 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 08EF513B5 for ; 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Tue, 02 Apr 2019 12:36:34 +0000 X-UUID: 6a8ceb56ab094302a54644eb466de8c8-20190402 X-UUID: 6a8ceb56ab094302a54644eb466de8c8-20190402 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 40629345; Tue, 02 Apr 2019 04:36:21 -0800 Received: from mtkmbs03n2.mediatek.inc (172.21.101.182) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 05:36:19 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 20:36:11 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 2 Apr 2019 20:36:10 +0800 From: Qii Wang To: Subject: [PATCH RESEND v6 5/6] i2c: mediatek: Add i2c support for MediaTek MT8183 Date: Tue, 2 Apr 2019 20:35:59 +0800 Message-ID: <1554208560-14817-6-git-send-email-qii.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> References: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 9F8051F003967A70845953CDE5D89943199A1F42552708F42BA2D16891A170DA2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_053625_879111_68883556 X-CRM114-Status: GOOD ( 13.22 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, qii.wang@mediatek.com, srv_heupstream@mediatek.com, robh@kernel.org, leilk.liu@mediatek.com, xinping.qian@mediatek.com, linux-kernel@vger.kernel.org, liguo.zhang@mediatek.com, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add i2c compatible for MT8183. Compare to MT2712 i2c controller, MT8183 has different register offsets. Ltiming_reg is added to adjust low width of SCL. Arb clock and dma_sync are needed. Signed-off-by: Qii Wang Reviewed-by: Nicolas Boichat Reviewed-by: Matthias Brugger --- drivers/i2c/busses/i2c-mt65xx.c | 62 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 60 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 6137ad7..745b0d0 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -133,6 +133,7 @@ enum I2C_REGS_OFFSET { OFFSET_DEBUGCTRL, OFFSET_TRANSFER_LEN_AUX, OFFSET_CLOCK_DIV, + OFFSET_LTIMING, }; static const u16 mt_i2c_regs_v1[] = { @@ -162,6 +163,32 @@ enum I2C_REGS_OFFSET { [OFFSET_CLOCK_DIV] = 0x70, }; +static const u16 mt_i2c_regs_v2[] = { + [OFFSET_DATA_PORT] = 0x0, + [OFFSET_SLAVE_ADDR] = 0x4, + [OFFSET_INTR_MASK] = 0x8, + [OFFSET_INTR_STAT] = 0xc, + [OFFSET_CONTROL] = 0x10, + [OFFSET_TRANSFER_LEN] = 0x14, + [OFFSET_TRANSAC_LEN] = 0x18, + [OFFSET_DELAY_LEN] = 0x1c, + [OFFSET_TIMING] = 0x20, + [OFFSET_START] = 0x24, + [OFFSET_EXT_CONF] = 0x28, + [OFFSET_LTIMING] = 0x2c, + [OFFSET_HS] = 0x30, + [OFFSET_IO_CONFIG] = 0x34, + [OFFSET_FIFO_ADDR_CLR] = 0x38, + [OFFSET_TRANSFER_LEN_AUX] = 0x44, + [OFFSET_CLOCK_DIV] = 0x48, + [OFFSET_SOFTRESET] = 0x50, + [OFFSET_DEBUGSTAT] = 0xe0, + [OFFSET_DEBUGCTRL] = 0xe8, + [OFFSET_FIFO_STAT] = 0xf4, + [OFFSET_FIFO_THRESH] = 0xf8, + [OFFSET_DCM_EN] = 0xf88, +}; + struct mtk_i2c_compatible { const struct i2c_adapter_quirks *quirks; const u16 *regs; @@ -172,6 +199,7 @@ struct mtk_i2c_compatible { unsigned char support_33bits: 1; unsigned char timing_adjust: 1; unsigned char dma_sync: 1; + unsigned char ltiming_adjust: 1; }; struct mtk_i2c { @@ -195,6 +223,7 @@ struct mtk_i2c { enum mtk_trans_op op; u16 timing_reg; u16 high_speed_reg; + u16 ltiming_reg; unsigned char auto_restart; bool ignore_restart_irq; const struct mtk_i2c_compatible *dev_comp; @@ -222,6 +251,7 @@ struct mtk_i2c { .support_33bits = 1, .timing_adjust = 1, .dma_sync = 0, + .ltiming_adjust = 0, }; static const struct mtk_i2c_compatible mt6577_compat = { @@ -234,6 +264,7 @@ struct mtk_i2c { .support_33bits = 0, .timing_adjust = 0, .dma_sync = 0, + .ltiming_adjust = 0, }; static const struct mtk_i2c_compatible mt6589_compat = { @@ -246,6 +277,7 @@ struct mtk_i2c { .support_33bits = 0, .timing_adjust = 0, .dma_sync = 0, + .ltiming_adjust = 0, }; static const struct mtk_i2c_compatible mt7622_compat = { @@ -258,6 +290,7 @@ struct mtk_i2c { .support_33bits = 0, .timing_adjust = 0, .dma_sync = 0, + .ltiming_adjust = 0, }; static const struct mtk_i2c_compatible mt8173_compat = { @@ -269,6 +302,19 @@ struct mtk_i2c { .support_33bits = 1, .timing_adjust = 0, .dma_sync = 0, + .ltiming_adjust = 0, +}; + +static const struct mtk_i2c_compatible mt8183_compat = { + .regs = mt_i2c_regs_v2, + .pmic_i2c = 0, + .dcm = 0, + .auto_restart = 1, + .aux_len_reg = 1, + .support_33bits = 1, + .timing_adjust = 1, + .dma_sync = 1, + .ltiming_adjust = 1, }; static const struct of_device_id mtk_i2c_of_match[] = { @@ -277,6 +323,7 @@ struct mtk_i2c { { .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat }, { .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat }, { .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat }, + { .compatible = "mediatek,mt8183-i2c", .data = &mt8183_compat }, {} }; MODULE_DEVICE_TABLE(of, mtk_i2c_of_match); @@ -361,6 +408,8 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c) mtk_i2c_writew(i2c, i2c->timing_reg, OFFSET_TIMING); mtk_i2c_writew(i2c, i2c->high_speed_reg, OFFSET_HS); + if (i2c->dev_comp->ltiming_adjust) + mtk_i2c_writew(i2c, i2c->ltiming_reg, OFFSET_LTIMING); /* If use i2c pin from PMIC mt6397 side, need set PATH_DIR first */ if (i2c->have_pmic) @@ -460,6 +509,8 @@ static int mtk_i2c_set_speed(struct mtk_i2c *i2c, unsigned int parent_clk) unsigned int clk_src; unsigned int step_cnt; unsigned int sample_cnt; + unsigned int l_step_cnt; + unsigned int l_sample_cnt; unsigned int target_speed; int ret; @@ -469,11 +520,11 @@ static int mtk_i2c_set_speed(struct mtk_i2c *i2c, unsigned int parent_clk) if (target_speed > MAX_FS_MODE_SPEED) { /* Set master code speed register */ ret = mtk_i2c_calculate_speed(i2c, clk_src, MAX_FS_MODE_SPEED, - &step_cnt, &sample_cnt); + &l_step_cnt, &l_sample_cnt); if (ret < 0) return ret; - i2c->timing_reg = (sample_cnt << 8) | step_cnt; + i2c->timing_reg = (l_sample_cnt << 8) | l_step_cnt; /* Set the high speed mode register */ ret = mtk_i2c_calculate_speed(i2c, clk_src, target_speed, @@ -483,6 +534,10 @@ static int mtk_i2c_set_speed(struct mtk_i2c *i2c, unsigned int parent_clk) i2c->high_speed_reg = I2C_TIME_DEFAULT_VALUE | (sample_cnt << 12) | (step_cnt << 8); + + if (i2c->dev_comp->ltiming_adjust) + i2c->ltiming_reg = (l_sample_cnt << 6) | l_step_cnt | + (sample_cnt << 12) | (step_cnt << 9); } else { ret = mtk_i2c_calculate_speed(i2c, clk_src, target_speed, &step_cnt, &sample_cnt); @@ -493,6 +548,9 @@ static int mtk_i2c_set_speed(struct mtk_i2c *i2c, unsigned int parent_clk) /* Disable the high speed transaction */ i2c->high_speed_reg = I2C_TIME_CLR_VALUE; + + if (i2c->dev_comp->ltiming_adjust) + i2c->ltiming_reg = (sample_cnt << 6) | step_cnt; } return 0; From patchwork Tue Apr 2 12:36:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UWlpIFdhbmcgKOeOi+eQqik=?= X-Patchwork-Id: 10881623 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DC86015AC for ; Tue, 2 Apr 2019 12:52:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C4CA2288C3 for ; 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Tue, 02 Apr 2019 04:36:13 -0800 Received: from mtkmbs03n1.mediatek.inc (172.21.101.181) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 05:36:13 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n1.mediatek.inc (172.21.101.181) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 2 Apr 2019 20:36:12 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 2 Apr 2019 20:36:11 +0800 From: Qii Wang To: Subject: [PATCH RESEND v6 6/6] dts: arm64: mt8183: Add I2C nodes Date: Tue, 2 Apr 2019 20:36:00 +0800 Message-ID: <1554208560-14817-7-git-send-email-qii.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> References: <1554208560-14817-1-git-send-email-qii.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_053624_018681_12AEB429 X-CRM114-Status: UNSURE ( 9.18 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, qii.wang@mediatek.com, srv_heupstream@mediatek.com, robh@kernel.org, leilk.liu@mediatek.com, xinping.qian@mediatek.com, linux-kernel@vger.kernel.org, liguo.zhang@mediatek.com, linux-mediatek@lists.infradead.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds i2c nodes for I2C controllers Signed-off-by: Qii Wang --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 192 ++++++++++++++++++++++++++++++ 1 file changed, 192 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi index 75c4881..3dde2be 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi @@ -16,6 +16,21 @@ #address-cells = <2>; #size-cells = <2>; + aliases { + i2c0 = &i2c0; + i2c1 = &i2c1; + i2c2 = &i2c2; + i2c3 = &i2c3; + i2c4 = &i2c4; + i2c5 = &i2c5; + i2c6 = &i2c6; + i2c7 = &i2c7; + i2c8 = &i2c8; + i2c9 = &i2c9; + i2c10 = &i2c10; + i2c11 = &i2c11; + }; + cpus { #address-cells = <1>; #size-cells = <0>; @@ -299,6 +314,183 @@ status = "disabled"; }; + i2c6: i2c@11005000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11005000 0 0x1000>, + <0 0x11000600 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C6>, + <&infracfg CLK_INFRA_AP_DMA>; + clock-names = "main", "dma"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c0: i2c@11007000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11007000 0 0x1000>, + <0 0x11000080 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C0>, + <&infracfg CLK_INFRA_AP_DMA>; + clock-names = "main", "dma"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c4: i2c@11008000 { + compatible = "mediatek,mt8183-i2c"; + id = <4>; + reg = <0 0x11008000 0 0x1000>, + <0 0x11000100 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C1>, + <&infracfg CLK_INFRA_AP_DMA>, + <&infracfg CLK_INFRA_I2C1_ARBITER>; + clock-names = "main", "dma","arb"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c2: i2c@11009000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11009000 0 0x1000>, + <0 0x11000280 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C2>, + <&infracfg CLK_INFRA_AP_DMA>, + <&infracfg CLK_INFRA_I2C2_ARBITER>; + clock-names = "main", "dma", "arb"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c3: i2c@1100f000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x1100f000 0 0x1000>, + <0 0x11000400 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C3>, + <&infracfg CLK_INFRA_AP_DMA>; + clock-names = "main", "dma"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c1: i2c@11011000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11011000 0 0x1000>, + <0 0x11000480 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C4>, + <&infracfg CLK_INFRA_AP_DMA>; + clock-names = "main", "dma"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + + i2c9: i2c@11014000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11014000 0 0x1000>, + <0 0x11000180 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C1_IMM>, + <&infracfg CLK_INFRA_AP_DMA>, + <&infracfg CLK_INFRA_I2C1_ARBITER>; + clock-names = "main", "dma", "arb"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c10: i2c@11015000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11015000 0 0x1000>, + <0 0x11000300 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C2_IMM>, + <&infracfg CLK_INFRA_AP_DMA>, + <&infracfg CLK_INFRA_I2C2_ARBITER>; + clock-names = "main", "dma", "arb"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c5: i2c@11016000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11016000 0 0x1000>, + <0 0x11000500 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C5>, + <&infracfg CLK_INFRA_AP_DMA>, + <&infracfg CLK_INFRA_I2C5_ARBITER>; + clock-names = "main", "dma", "arb"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c11: i2c@11017000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x11017000 0 0x1000>, + <0 0x11000580 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C5_IMM>, + <&infracfg CLK_INFRA_AP_DMA>, + <&infracfg CLK_INFRA_I2C5_ARBITER>; + clock-names = "main", "dma", "arb"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + + i2c7: i2c@1101a000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x1101a000 0 0x1000>, + <0 0x11000680 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C7>, + <&infracfg CLK_INFRA_AP_DMA>; + clock-names = "main", "dma"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + i2c8: i2c@1101b000 { + compatible = "mediatek,mt8183-i2c"; + reg = <0 0x1101b000 0 0x1000>, + <0 0x11000700 0 0x80>; + interrupts = ; + clocks = <&infracfg CLK_INFRA_I2C8>, + <&infracfg CLK_INFRA_AP_DMA>; + clock-names = "main", "dma"; + clock-div = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + audiosys: syscon@11220000 { compatible = "mediatek,mt8183-audiosys", "syscon"; reg = <0 0x11220000 0 0x1000>;