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[23.128.96.18]) by mx.google.com with ESMTP id dk4si748700ejb.529.2020.05.06.02.14.44; Wed, 06 May 2020 02:15:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@st.com header.s=STMicroelectronics header.b=dbvO4y34; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=st.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729084AbgEFJMu (ORCPT + 99 others); Wed, 6 May 2020 05:12:50 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:39188 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728573AbgEFJMt (ORCPT ); Wed, 6 May 2020 05:12:49 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04697EYU001972; Wed, 6 May 2020 11:12:15 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=FFPoL2nGGNtuAD7mez7l8e+HMoVw9jvWzFRFU4SpXK0=; b=dbvO4y34C1rjH2MbZmgemxSfCslgkmHcKUS5eSV3NsB4rT5HCD2l2r/PMsX6ju2qc+6A opjnSKJKcf0hOhKirR2jesIuG2mzpiWEtdSXp4EBMJHtr3Tfn3EXnrWiOUFbIdcEMTn3 Qj/0JzefQIGq0rNQgYLzGLD5zG+pCImNtr/TntO/oumNOUL0zNCpA0/4WiTh6jYWNAdA tbehZN4iksE+UwFuzc9sNmBtacduhkHLuTvJin7zJ/n3bw3J4bPRaYjwUPDuqHz6HQeN 0grCIA7dWxBkySLsLOtb8i15U2YN8N63MOHTka50jcbvpdyUu4tq7DlN/paki7/WP/ia IQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 30rxb254xw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 06 May 2020 11:12:15 +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 81CCD10002A; Wed, 6 May 2020 11:12:14 +0200 (CEST) Received: from Webmail-eu.st.com (sfhdag6node2.st.com [10.75.127.17]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 6DFC62AB477; Wed, 6 May 2020 11:12:14 +0200 (CEST) Received: from localhost (10.75.127.49) by SFHDAG6NODE2.st.com (10.75.127.17) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 6 May 2020 11:12:09 +0200 From: Christophe Kerello To: , , , , , , CC: , , , , , Christophe Kerello Subject: [PATCH v4 04/10] mtd: rawnand: stm32_fmc2: cleanup Date: Wed, 6 May 2020 11:11:13 +0200 Message-ID: <1588756279-17289-5-git-send-email-christophe.kerello@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1588756279-17289-1-git-send-email-christophe.kerello@st.com> References: <1588756279-17289-1-git-send-email-christophe.kerello@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG6NODE1.st.com (10.75.127.16) To SFHDAG6NODE2.st.com (10.75.127.17) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-05-06_03:2020-05-04,2020-05-06 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch renames functions and local variables. This cleanup is done to get all functions starting by stm32_fmc2_nfc in the FMC2 raw NAND driver when all functions will start by stm32_fmc2_ebi in the FMC2 EBI driver. Signed-off-by: Christophe Kerello Reviewed-by: Miquel Raynal --- Changes in v3: - fix s/conf/cf/, s/nfc/NFC/ - add Miquel reviewed-by tag drivers/mtd/nand/raw/stm32_fmc2_nand.c | 810 ++++++++++++++++----------------- 1 file changed, 403 insertions(+), 407 deletions(-) diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c index 5778a95..0d108fb 100644 --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c @@ -280,12 +280,12 @@ static inline struct stm32_fmc2_nfc *to_stm32_nfc(struct nand_controller *base) return container_of(base, struct stm32_fmc2_nfc, base); } -static void stm32_fmc2_timings_init(struct nand_chip *chip) +static void stm32_fmc2_nfc_timings_init(struct nand_chip *chip) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct stm32_fmc2_nand *nand = to_fmc2_nand(chip); struct stm32_fmc2_timings *timings = &nand->timings; - u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR); + u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); u32 pmem, patt; /* Set tclr/tar timings */ @@ -306,15 +306,15 @@ static void stm32_fmc2_timings_init(struct nand_chip *chip) patt |= FMC2_PATT_ATTHOLD(timings->thold_att); patt |= FMC2_PATT_ATTHIZ(timings->thiz); - writel_relaxed(pcr, fmc2->io_base + FMC2_PCR); - writel_relaxed(pmem, fmc2->io_base + FMC2_PMEM); - writel_relaxed(patt, fmc2->io_base + FMC2_PATT); + writel_relaxed(pcr, nfc->io_base + FMC2_PCR); + writel_relaxed(pmem, nfc->io_base + FMC2_PMEM); + writel_relaxed(patt, nfc->io_base + FMC2_PATT); } -static void stm32_fmc2_setup(struct nand_chip *chip) +static void stm32_fmc2_nfc_setup(struct nand_chip *chip) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); - u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); + u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); /* Configure ECC algorithm (default configuration is Hamming) */ pcr &= ~FMC2_PCR_ECCALG; @@ -335,174 +335,174 @@ static void stm32_fmc2_setup(struct nand_chip *chip) pcr &= ~FMC2_PCR_ECCSS_MASK; pcr |= FMC2_PCR_ECCSS(FMC2_PCR_ECCSS_512); - writel_relaxed(pcr, fmc2->io_base + FMC2_PCR); + writel_relaxed(pcr, nfc->io_base + FMC2_PCR); } -static int stm32_fmc2_select_chip(struct nand_chip *chip, int chipnr) +static int stm32_fmc2_nfc_select_chip(struct nand_chip *chip, int chipnr) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct stm32_fmc2_nand *nand = to_fmc2_nand(chip); struct dma_slave_config dma_cfg; int ret; - if (nand->cs_used[chipnr] == fmc2->cs_sel) + if (nand->cs_used[chipnr] == nfc->cs_sel) return 0; - fmc2->cs_sel = nand->cs_used[chipnr]; - stm32_fmc2_setup(chip); - stm32_fmc2_timings_init(chip); + nfc->cs_sel = nand->cs_used[chipnr]; + stm32_fmc2_nfc_setup(chip); + stm32_fmc2_nfc_timings_init(chip); - if (fmc2->dma_tx_ch && fmc2->dma_rx_ch) { + if (nfc->dma_tx_ch && nfc->dma_rx_ch) { memset(&dma_cfg, 0, sizeof(dma_cfg)); - dma_cfg.src_addr = fmc2->data_phys_addr[fmc2->cs_sel]; - dma_cfg.dst_addr = fmc2->data_phys_addr[fmc2->cs_sel]; + dma_cfg.src_addr = nfc->data_phys_addr[nfc->cs_sel]; + dma_cfg.dst_addr = nfc->data_phys_addr[nfc->cs_sel]; dma_cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; dma_cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; dma_cfg.src_maxburst = 32; dma_cfg.dst_maxburst = 32; - ret = dmaengine_slave_config(fmc2->dma_tx_ch, &dma_cfg); + ret = dmaengine_slave_config(nfc->dma_tx_ch, &dma_cfg); if (ret) { - dev_err(fmc2->dev, "tx DMA engine slave config failed\n"); + dev_err(nfc->dev, "tx DMA engine slave config failed\n"); return ret; } - ret = dmaengine_slave_config(fmc2->dma_rx_ch, &dma_cfg); + ret = dmaengine_slave_config(nfc->dma_rx_ch, &dma_cfg); if (ret) { - dev_err(fmc2->dev, "rx DMA engine slave config failed\n"); + dev_err(nfc->dev, "rx DMA engine slave config failed\n"); return ret; } } - if (fmc2->dma_ecc_ch) { + if (nfc->dma_ecc_ch) { /* * Hamming: we read HECCR register * BCH4/BCH8: we read BCHDSRSx registers */ memset(&dma_cfg, 0, sizeof(dma_cfg)); - dma_cfg.src_addr = fmc2->io_phys_addr; + dma_cfg.src_addr = nfc->io_phys_addr; dma_cfg.src_addr += chip->ecc.strength == FMC2_ECC_HAM ? FMC2_HECCR : FMC2_BCHDSR0; dma_cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - ret = dmaengine_slave_config(fmc2->dma_ecc_ch, &dma_cfg); + ret = dmaengine_slave_config(nfc->dma_ecc_ch, &dma_cfg); if (ret) { - dev_err(fmc2->dev, "ECC DMA engine slave config failed\n"); + dev_err(nfc->dev, "ECC DMA engine slave config failed\n"); return ret; } /* Calculate ECC length needed for one sector */ - fmc2->dma_ecc_len = chip->ecc.strength == FMC2_ECC_HAM ? - FMC2_HECCR_LEN : FMC2_BCHDSRS_LEN; + nfc->dma_ecc_len = chip->ecc.strength == FMC2_ECC_HAM ? + FMC2_HECCR_LEN : FMC2_BCHDSRS_LEN; } return 0; } -static void stm32_fmc2_set_buswidth_16(struct stm32_fmc2_nfc *fmc2, bool set) +static void stm32_fmc2_nfc_set_buswidth_16(struct stm32_fmc2_nfc *nfc, bool set) { - u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR); + u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); pcr &= ~FMC2_PCR_PWID_MASK; if (set) pcr |= FMC2_PCR_PWID(FMC2_PCR_PWID_BUSWIDTH_16); - writel_relaxed(pcr, fmc2->io_base + FMC2_PCR); + writel_relaxed(pcr, nfc->io_base + FMC2_PCR); } -static void stm32_fmc2_set_ecc(struct stm32_fmc2_nfc *fmc2, bool enable) +static void stm32_fmc2_nfc_set_ecc(struct stm32_fmc2_nfc *nfc, bool enable) { - u32 pcr = readl(fmc2->io_base + FMC2_PCR); + u32 pcr = readl(nfc->io_base + FMC2_PCR); pcr &= ~FMC2_PCR_ECCEN; if (enable) pcr |= FMC2_PCR_ECCEN; - writel(pcr, fmc2->io_base + FMC2_PCR); + writel(pcr, nfc->io_base + FMC2_PCR); } -static inline void stm32_fmc2_enable_seq_irq(struct stm32_fmc2_nfc *fmc2) +static inline void stm32_fmc2_nfc_enable_seq_irq(struct stm32_fmc2_nfc *nfc) { - u32 csqier = readl_relaxed(fmc2->io_base + FMC2_CSQIER); + u32 csqier = readl_relaxed(nfc->io_base + FMC2_CSQIER); csqier |= FMC2_CSQIER_TCIE; - fmc2->irq_state = FMC2_IRQ_SEQ; + nfc->irq_state = FMC2_IRQ_SEQ; - writel_relaxed(csqier, fmc2->io_base + FMC2_CSQIER); + writel_relaxed(csqier, nfc->io_base + FMC2_CSQIER); } -static inline void stm32_fmc2_disable_seq_irq(struct stm32_fmc2_nfc *fmc2) +static inline void stm32_fmc2_nfc_disable_seq_irq(struct stm32_fmc2_nfc *nfc) { - u32 csqier = readl_relaxed(fmc2->io_base + FMC2_CSQIER); + u32 csqier = readl_relaxed(nfc->io_base + FMC2_CSQIER); csqier &= ~FMC2_CSQIER_TCIE; - writel_relaxed(csqier, fmc2->io_base + FMC2_CSQIER); + writel_relaxed(csqier, nfc->io_base + FMC2_CSQIER); - fmc2->irq_state = FMC2_IRQ_UNKNOWN; + nfc->irq_state = FMC2_IRQ_UNKNOWN; } -static inline void stm32_fmc2_clear_seq_irq(struct stm32_fmc2_nfc *fmc2) +static inline void stm32_fmc2_nfc_clear_seq_irq(struct stm32_fmc2_nfc *nfc) { - writel_relaxed(FMC2_CSQICR_CLEAR_IRQ, fmc2->io_base + FMC2_CSQICR); + writel_relaxed(FMC2_CSQICR_CLEAR_IRQ, nfc->io_base + FMC2_CSQICR); } -static inline void stm32_fmc2_enable_bch_irq(struct stm32_fmc2_nfc *fmc2, - int mode) +static inline void stm32_fmc2_nfc_enable_bch_irq(struct stm32_fmc2_nfc *nfc, + int mode) { - u32 bchier = readl_relaxed(fmc2->io_base + FMC2_BCHIER); + u32 bchier = readl_relaxed(nfc->io_base + FMC2_BCHIER); if (mode == NAND_ECC_WRITE) bchier |= FMC2_BCHIER_EPBRIE; else bchier |= FMC2_BCHIER_DERIE; - fmc2->irq_state = FMC2_IRQ_BCH; + nfc->irq_state = FMC2_IRQ_BCH; - writel_relaxed(bchier, fmc2->io_base + FMC2_BCHIER); + writel_relaxed(bchier, nfc->io_base + FMC2_BCHIER); } -static inline void stm32_fmc2_disable_bch_irq(struct stm32_fmc2_nfc *fmc2) +static inline void stm32_fmc2_nfc_disable_bch_irq(struct stm32_fmc2_nfc *nfc) { - u32 bchier = readl_relaxed(fmc2->io_base + FMC2_BCHIER); + u32 bchier = readl_relaxed(nfc->io_base + FMC2_BCHIER); bchier &= ~FMC2_BCHIER_DERIE; bchier &= ~FMC2_BCHIER_EPBRIE; - writel_relaxed(bchier, fmc2->io_base + FMC2_BCHIER); + writel_relaxed(bchier, nfc->io_base + FMC2_BCHIER); - fmc2->irq_state = FMC2_IRQ_UNKNOWN; + nfc->irq_state = FMC2_IRQ_UNKNOWN; } -static inline void stm32_fmc2_clear_bch_irq(struct stm32_fmc2_nfc *fmc2) +static inline void stm32_fmc2_nfc_clear_bch_irq(struct stm32_fmc2_nfc *nfc) { - writel_relaxed(FMC2_BCHICR_CLEAR_IRQ, fmc2->io_base + FMC2_BCHICR); + writel_relaxed(FMC2_BCHICR_CLEAR_IRQ, nfc->io_base + FMC2_BCHICR); } /* * Enable ECC logic and reset syndrome/parity bits previously calculated * Syndrome/parity bits is cleared by setting the ECCEN bit to 0 */ -static void stm32_fmc2_hwctl(struct nand_chip *chip, int mode) +static void stm32_fmc2_nfc_hwctl(struct nand_chip *chip, int mode) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); - stm32_fmc2_set_ecc(fmc2, false); + stm32_fmc2_nfc_set_ecc(nfc, false); if (chip->ecc.strength != FMC2_ECC_HAM) { - u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR); + u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); if (mode == NAND_ECC_WRITE) pcr |= FMC2_PCR_WEN; else pcr &= ~FMC2_PCR_WEN; - writel_relaxed(pcr, fmc2->io_base + FMC2_PCR); + writel_relaxed(pcr, nfc->io_base + FMC2_PCR); - reinit_completion(&fmc2->complete); - stm32_fmc2_clear_bch_irq(fmc2); - stm32_fmc2_enable_bch_irq(fmc2, mode); + reinit_completion(&nfc->complete); + stm32_fmc2_nfc_clear_bch_irq(nfc); + stm32_fmc2_nfc_enable_bch_irq(nfc, mode); } - stm32_fmc2_set_ecc(fmc2, true); + stm32_fmc2_nfc_set_ecc(nfc, true); } /* @@ -510,37 +510,37 @@ static void stm32_fmc2_hwctl(struct nand_chip *chip, int mode) * ECC is 3 bytes for 512 bytes of data (supports error correction up to * max of 1-bit) */ -static inline void stm32_fmc2_ham_set_ecc(const u32 ecc_sta, u8 *ecc) +static inline void stm32_fmc2_nfc_ham_set_ecc(const u32 ecc_sta, u8 *ecc) { ecc[0] = ecc_sta; ecc[1] = ecc_sta >> 8; ecc[2] = ecc_sta >> 16; } -static int stm32_fmc2_ham_calculate(struct nand_chip *chip, const u8 *data, - u8 *ecc) +static int stm32_fmc2_nfc_ham_calculate(struct nand_chip *chip, const u8 *data, + u8 *ecc) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); u32 sr, heccr; int ret; - ret = readl_relaxed_poll_timeout(fmc2->io_base + FMC2_SR, + ret = readl_relaxed_poll_timeout(nfc->io_base + FMC2_SR, sr, sr & FMC2_SR_NWRF, 1, 1000 * FMC2_TIMEOUT_MS); if (ret) { - dev_err(fmc2->dev, "ham timeout\n"); + dev_err(nfc->dev, "ham timeout\n"); return ret; } - heccr = readl_relaxed(fmc2->io_base + FMC2_HECCR); - stm32_fmc2_ham_set_ecc(heccr, ecc); - stm32_fmc2_set_ecc(fmc2, false); + heccr = readl_relaxed(nfc->io_base + FMC2_HECCR); + stm32_fmc2_nfc_ham_set_ecc(heccr, ecc); + stm32_fmc2_nfc_set_ecc(nfc, false); return 0; } -static int stm32_fmc2_ham_correct(struct nand_chip *chip, u8 *dat, - u8 *read_ecc, u8 *calc_ecc) +static int stm32_fmc2_nfc_ham_correct(struct nand_chip *chip, u8 *dat, + u8 *read_ecc, u8 *calc_ecc) { u8 bit_position = 0, b0, b1, b2; u32 byte_addr = 0, b; @@ -596,28 +596,28 @@ static int stm32_fmc2_ham_correct(struct nand_chip *chip, u8 *dat, * ECC is 7/13 bytes for 512 bytes of data (supports error correction up to * max of 4-bit/8-bit) */ -static int stm32_fmc2_bch_calculate(struct nand_chip *chip, const u8 *data, - u8 *ecc) +static int stm32_fmc2_nfc_bch_calculate(struct nand_chip *chip, const u8 *data, + u8 *ecc) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); u32 bchpbr; /* Wait until the BCH code is ready */ - if (!wait_for_completion_timeout(&fmc2->complete, + if (!wait_for_completion_timeout(&nfc->complete, msecs_to_jiffies(FMC2_TIMEOUT_MS))) { - dev_err(fmc2->dev, "bch timeout\n"); - stm32_fmc2_disable_bch_irq(fmc2); + dev_err(nfc->dev, "bch timeout\n"); + stm32_fmc2_nfc_disable_bch_irq(nfc); return -ETIMEDOUT; } /* Read parity bits */ - bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR1); + bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR1); ecc[0] = bchpbr; ecc[1] = bchpbr >> 8; ecc[2] = bchpbr >> 16; ecc[3] = bchpbr >> 24; - bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR2); + bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR2); ecc[4] = bchpbr; ecc[5] = bchpbr >> 8; ecc[6] = bchpbr >> 16; @@ -625,22 +625,22 @@ static int stm32_fmc2_bch_calculate(struct nand_chip *chip, const u8 *data, if (chip->ecc.strength == FMC2_ECC_BCH8) { ecc[7] = bchpbr >> 24; - bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR3); + bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR3); ecc[8] = bchpbr; ecc[9] = bchpbr >> 8; ecc[10] = bchpbr >> 16; ecc[11] = bchpbr >> 24; - bchpbr = readl_relaxed(fmc2->io_base + FMC2_BCHPBR4); + bchpbr = readl_relaxed(nfc->io_base + FMC2_BCHPBR4); ecc[12] = bchpbr; } - stm32_fmc2_set_ecc(fmc2, false); + stm32_fmc2_nfc_set_ecc(nfc, false); return 0; } -static int stm32_fmc2_bch_decode(int eccsize, u8 *dat, u32 *ecc_sta) +static int stm32_fmc2_nfc_bch_decode(int eccsize, u8 *dat, u32 *ecc_sta) { u32 bchdsr0 = ecc_sta[0]; u32 bchdsr1 = ecc_sta[1]; @@ -679,33 +679,33 @@ static int stm32_fmc2_bch_decode(int eccsize, u8 *dat, u32 *ecc_sta) return nb_errs; } -static int stm32_fmc2_bch_correct(struct nand_chip *chip, u8 *dat, - u8 *read_ecc, u8 *calc_ecc) +static int stm32_fmc2_nfc_bch_correct(struct nand_chip *chip, u8 *dat, + u8 *read_ecc, u8 *calc_ecc) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); u32 ecc_sta[5]; /* Wait until the decoding error is ready */ - if (!wait_for_completion_timeout(&fmc2->complete, + if (!wait_for_completion_timeout(&nfc->complete, msecs_to_jiffies(FMC2_TIMEOUT_MS))) { - dev_err(fmc2->dev, "bch timeout\n"); - stm32_fmc2_disable_bch_irq(fmc2); + dev_err(nfc->dev, "bch timeout\n"); + stm32_fmc2_nfc_disable_bch_irq(nfc); return -ETIMEDOUT; } - ecc_sta[0] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR0); - ecc_sta[1] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR1); - ecc_sta[2] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR2); - ecc_sta[3] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR3); - ecc_sta[4] = readl_relaxed(fmc2->io_base + FMC2_BCHDSR4); + ecc_sta[0] = readl_relaxed(nfc->io_base + FMC2_BCHDSR0); + ecc_sta[1] = readl_relaxed(nfc->io_base + FMC2_BCHDSR1); + ecc_sta[2] = readl_relaxed(nfc->io_base + FMC2_BCHDSR2); + ecc_sta[3] = readl_relaxed(nfc->io_base + FMC2_BCHDSR3); + ecc_sta[4] = readl_relaxed(nfc->io_base + FMC2_BCHDSR4); - stm32_fmc2_set_ecc(fmc2, false); + stm32_fmc2_nfc_set_ecc(nfc, false); - return stm32_fmc2_bch_decode(chip->ecc.size, dat, ecc_sta); + return stm32_fmc2_nfc_bch_decode(chip->ecc.size, dat, ecc_sta); } -static int stm32_fmc2_read_page(struct nand_chip *chip, u8 *buf, - int oob_required, int page) +static int stm32_fmc2_nfc_read_page(struct nand_chip *chip, u8 *buf, + int oob_required, int page) { struct mtd_info *mtd = nand_to_mtd(chip); int ret, i, s, stat, eccsize = chip->ecc.size; @@ -767,21 +767,21 @@ static int stm32_fmc2_read_page(struct nand_chip *chip, u8 *buf, } /* Sequencer read/write configuration */ -static void stm32_fmc2_rw_page_init(struct nand_chip *chip, int page, - int raw, bool write_data) +static void stm32_fmc2_nfc_rw_page_init(struct nand_chip *chip, int page, + int raw, bool write_data) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct mtd_info *mtd = nand_to_mtd(chip); u32 csqcfgr1, csqcfgr2, csqcfgr3; u32 csqar1, csqar2; u32 ecc_offset = mtd->writesize + FMC2_BBM_LEN; - u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR); + u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); if (write_data) pcr |= FMC2_PCR_WEN; else pcr &= ~FMC2_PCR_WEN; - writel_relaxed(pcr, fmc2->io_base + FMC2_PCR); + writel_relaxed(pcr, nfc->io_base + FMC2_PCR); /* * - Set Program Page/Page Read command @@ -843,7 +843,7 @@ static void stm32_fmc2_rw_page_init(struct nand_chip *chip, int page, * - Calculate the number of address cycles to be issued * - Set byte 5 of address cycle if needed */ - csqar2 = FMC2_CSQCAR2_NANDCEN(fmc2->cs_sel); + csqar2 = FMC2_CSQCAR2_NANDCEN(nfc->cs_sel); if (chip->options & NAND_BUSWIDTH_16) csqar2 |= FMC2_CSQCAR2_SAO(ecc_offset >> 1); else @@ -855,31 +855,32 @@ static void stm32_fmc2_rw_page_init(struct nand_chip *chip, int page, csqcfgr1 |= FMC2_CSQCFGR1_ACYNBR(4); } - writel_relaxed(csqcfgr1, fmc2->io_base + FMC2_CSQCFGR1); - writel_relaxed(csqcfgr2, fmc2->io_base + FMC2_CSQCFGR2); - writel_relaxed(csqcfgr3, fmc2->io_base + FMC2_CSQCFGR3); - writel_relaxed(csqar1, fmc2->io_base + FMC2_CSQAR1); - writel_relaxed(csqar2, fmc2->io_base + FMC2_CSQAR2); + writel_relaxed(csqcfgr1, nfc->io_base + FMC2_CSQCFGR1); + writel_relaxed(csqcfgr2, nfc->io_base + FMC2_CSQCFGR2); + writel_relaxed(csqcfgr3, nfc->io_base + FMC2_CSQCFGR3); + writel_relaxed(csqar1, nfc->io_base + FMC2_CSQAR1); + writel_relaxed(csqar2, nfc->io_base + FMC2_CSQAR2); } -static void stm32_fmc2_dma_callback(void *arg) +static void stm32_fmc2_nfc_dma_callback(void *arg) { complete((struct completion *)arg); } /* Read/write data from/to a page */ -static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf, - int raw, bool write_data) +static int stm32_fmc2_nfc_xfer(struct nand_chip *chip, const u8 *buf, + int raw, bool write_data) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct dma_async_tx_descriptor *desc_data, *desc_ecc; struct scatterlist *sg; - struct dma_chan *dma_ch = fmc2->dma_rx_ch; + struct dma_chan *dma_ch = nfc->dma_rx_ch; enum dma_data_direction dma_data_dir = DMA_FROM_DEVICE; enum dma_transfer_direction dma_transfer_dir = DMA_DEV_TO_MEM; - u32 csqcr = readl_relaxed(fmc2->io_base + FMC2_CSQCR); + u32 csqcr = readl_relaxed(nfc->io_base + FMC2_CSQCR); int eccsteps = chip->ecc.steps; int eccsize = chip->ecc.size; + unsigned long timeout = msecs_to_jiffies(FMC2_TIMEOUT_MS); const u8 *p = buf; int s, ret; @@ -887,20 +888,20 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf, if (write_data) { dma_data_dir = DMA_TO_DEVICE; dma_transfer_dir = DMA_MEM_TO_DEV; - dma_ch = fmc2->dma_tx_ch; + dma_ch = nfc->dma_tx_ch; } - for_each_sg(fmc2->dma_data_sg.sgl, sg, eccsteps, s) { + for_each_sg(nfc->dma_data_sg.sgl, sg, eccsteps, s) { sg_set_buf(sg, p, eccsize); p += eccsize; } - ret = dma_map_sg(fmc2->dev, fmc2->dma_data_sg.sgl, + ret = dma_map_sg(nfc->dev, nfc->dma_data_sg.sgl, eccsteps, dma_data_dir); if (ret < 0) return ret; - desc_data = dmaengine_prep_slave_sg(dma_ch, fmc2->dma_data_sg.sgl, + desc_data = dmaengine_prep_slave_sg(dma_ch, nfc->dma_data_sg.sgl, eccsteps, dma_transfer_dir, DMA_PREP_INTERRUPT); if (!desc_data) { @@ -908,10 +909,10 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf, goto err_unmap_data; } - reinit_completion(&fmc2->dma_data_complete); - reinit_completion(&fmc2->complete); - desc_data->callback = stm32_fmc2_dma_callback; - desc_data->callback_param = &fmc2->dma_data_complete; + reinit_completion(&nfc->dma_data_complete); + reinit_completion(&nfc->complete); + desc_data->callback = stm32_fmc2_nfc_dma_callback; + desc_data->callback_param = &nfc->dma_data_complete; ret = dma_submit_error(dmaengine_submit(desc_data)); if (ret) goto err_unmap_data; @@ -920,19 +921,19 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf, if (!write_data && !raw) { /* Configure DMA ECC status */ - p = fmc2->ecc_buf; - for_each_sg(fmc2->dma_ecc_sg.sgl, sg, eccsteps, s) { - sg_set_buf(sg, p, fmc2->dma_ecc_len); - p += fmc2->dma_ecc_len; + p = nfc->ecc_buf; + for_each_sg(nfc->dma_ecc_sg.sgl, sg, eccsteps, s) { + sg_set_buf(sg, p, nfc->dma_ecc_len); + p += nfc->dma_ecc_len; } - ret = dma_map_sg(fmc2->dev, fmc2->dma_ecc_sg.sgl, + ret = dma_map_sg(nfc->dev, nfc->dma_ecc_sg.sgl, eccsteps, dma_data_dir); if (ret < 0) goto err_unmap_data; - desc_ecc = dmaengine_prep_slave_sg(fmc2->dma_ecc_ch, - fmc2->dma_ecc_sg.sgl, + desc_ecc = dmaengine_prep_slave_sg(nfc->dma_ecc_ch, + nfc->dma_ecc_sg.sgl, eccsteps, dma_transfer_dir, DMA_PREP_INTERRUPT); if (!desc_ecc) { @@ -940,76 +941,73 @@ static int stm32_fmc2_xfer(struct nand_chip *chip, const u8 *buf, goto err_unmap_ecc; } - reinit_completion(&fmc2->dma_ecc_complete); - desc_ecc->callback = stm32_fmc2_dma_callback; - desc_ecc->callback_param = &fmc2->dma_ecc_complete; + reinit_completion(&nfc->dma_ecc_complete); + desc_ecc->callback = stm32_fmc2_nfc_dma_callback; + desc_ecc->callback_param = &nfc->dma_ecc_complete; ret = dma_submit_error(dmaengine_submit(desc_ecc)); if (ret) goto err_unmap_ecc; - dma_async_issue_pending(fmc2->dma_ecc_ch); + dma_async_issue_pending(nfc->dma_ecc_ch); } - stm32_fmc2_clear_seq_irq(fmc2); - stm32_fmc2_enable_seq_irq(fmc2); + stm32_fmc2_nfc_clear_seq_irq(nfc); + stm32_fmc2_nfc_enable_seq_irq(nfc); /* Start the transfer */ csqcr |= FMC2_CSQCR_CSQSTART; - writel_relaxed(csqcr, fmc2->io_base + FMC2_CSQCR); + writel_relaxed(csqcr, nfc->io_base + FMC2_CSQCR); /* Wait end of sequencer transfer */ - if (!wait_for_completion_timeout(&fmc2->complete, - msecs_to_jiffies(FMC2_TIMEOUT_MS))) { - dev_err(fmc2->dev, "seq timeout\n"); - stm32_fmc2_disable_seq_irq(fmc2); + if (!wait_for_completion_timeout(&nfc->complete, timeout)) { + dev_err(nfc->dev, "seq timeout\n"); + stm32_fmc2_nfc_disable_seq_irq(nfc); dmaengine_terminate_all(dma_ch); if (!write_data && !raw) - dmaengine_terminate_all(fmc2->dma_ecc_ch); + dmaengine_terminate_all(nfc->dma_ecc_ch); ret = -ETIMEDOUT; goto err_unmap_ecc; } /* Wait DMA data transfer completion */ - if (!wait_for_completion_timeout(&fmc2->dma_data_complete, - msecs_to_jiffies(FMC2_TIMEOUT_MS))) { - dev_err(fmc2->dev, "data DMA timeout\n"); + if (!wait_for_completion_timeout(&nfc->dma_data_complete, timeout)) { + dev_err(nfc->dev, "data DMA timeout\n"); dmaengine_terminate_all(dma_ch); ret = -ETIMEDOUT; } /* Wait DMA ECC transfer completion */ if (!write_data && !raw) { - if (!wait_for_completion_timeout(&fmc2->dma_ecc_complete, - msecs_to_jiffies(FMC2_TIMEOUT_MS))) { - dev_err(fmc2->dev, "ECC DMA timeout\n"); - dmaengine_terminate_all(fmc2->dma_ecc_ch); + if (!wait_for_completion_timeout(&nfc->dma_ecc_complete, + timeout)) { + dev_err(nfc->dev, "ECC DMA timeout\n"); + dmaengine_terminate_all(nfc->dma_ecc_ch); ret = -ETIMEDOUT; } } err_unmap_ecc: if (!write_data && !raw) - dma_unmap_sg(fmc2->dev, fmc2->dma_ecc_sg.sgl, + dma_unmap_sg(nfc->dev, nfc->dma_ecc_sg.sgl, eccsteps, dma_data_dir); err_unmap_data: - dma_unmap_sg(fmc2->dev, fmc2->dma_data_sg.sgl, eccsteps, dma_data_dir); + dma_unmap_sg(nfc->dev, nfc->dma_data_sg.sgl, eccsteps, dma_data_dir); return ret; } -static int stm32_fmc2_sequencer_write(struct nand_chip *chip, - const u8 *buf, int oob_required, - int page, int raw) +static int stm32_fmc2_nfc_seq_write(struct nand_chip *chip, const u8 *buf, + int oob_required, int page, int raw) { struct mtd_info *mtd = nand_to_mtd(chip); int ret; /* Configure the sequencer */ - stm32_fmc2_rw_page_init(chip, page, raw, true); + stm32_fmc2_nfc_rw_page_init(chip, page, raw, true); /* Write the page */ - ret = stm32_fmc2_xfer(chip, buf, raw, true); + ret = stm32_fmc2_nfc_xfer(chip, buf, raw, true); if (ret) return ret; @@ -1025,53 +1023,50 @@ static int stm32_fmc2_sequencer_write(struct nand_chip *chip, return nand_prog_page_end_op(chip); } -static int stm32_fmc2_sequencer_write_page(struct nand_chip *chip, - const u8 *buf, - int oob_required, - int page) +static int stm32_fmc2_nfc_seq_write_page(struct nand_chip *chip, const u8 *buf, + int oob_required, int page) { int ret; - ret = stm32_fmc2_select_chip(chip, chip->cur_cs); + ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs); if (ret) return ret; - return stm32_fmc2_sequencer_write(chip, buf, oob_required, page, false); + return stm32_fmc2_nfc_seq_write(chip, buf, oob_required, page, false); } -static int stm32_fmc2_sequencer_write_page_raw(struct nand_chip *chip, - const u8 *buf, - int oob_required, - int page) +static int stm32_fmc2_nfc_seq_write_page_raw(struct nand_chip *chip, + const u8 *buf, int oob_required, + int page) { int ret; - ret = stm32_fmc2_select_chip(chip, chip->cur_cs); + ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs); if (ret) return ret; - return stm32_fmc2_sequencer_write(chip, buf, oob_required, page, true); + return stm32_fmc2_nfc_seq_write(chip, buf, oob_required, page, true); } /* Get a status indicating which sectors have errors */ -static inline u16 stm32_fmc2_get_mapping_status(struct stm32_fmc2_nfc *fmc2) +static inline u16 stm32_fmc2_nfc_get_mapping_status(struct stm32_fmc2_nfc *nfc) { - u32 csqemsr = readl_relaxed(fmc2->io_base + FMC2_CSQEMSR); + u32 csqemsr = readl_relaxed(nfc->io_base + FMC2_CSQEMSR); return csqemsr & FMC2_CSQEMSR_SEM; } -static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat, - u8 *read_ecc, u8 *calc_ecc) +static int stm32_fmc2_nfc_seq_correct(struct nand_chip *chip, u8 *dat, + u8 *read_ecc, u8 *calc_ecc) { struct mtd_info *mtd = nand_to_mtd(chip); - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; int eccstrength = chip->ecc.strength; int i, s, eccsize = chip->ecc.size; - u32 *ecc_sta = (u32 *)fmc2->ecc_buf; - u16 sta_map = stm32_fmc2_get_mapping_status(fmc2); + u32 *ecc_sta = (u32 *)nfc->ecc_buf; + u16 sta_map = stm32_fmc2_nfc_get_mapping_status(nfc); unsigned int max_bitflips = 0; for (i = 0, s = 0; s < eccsteps; s++, i += eccbytes, dat += eccsize) { @@ -1080,10 +1075,11 @@ static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat, if (eccstrength == FMC2_ECC_HAM) { /* Ecc_sta = FMC2_HECCR */ if (sta_map & BIT(s)) { - stm32_fmc2_ham_set_ecc(*ecc_sta, &calc_ecc[i]); - stat = stm32_fmc2_ham_correct(chip, dat, - &read_ecc[i], - &calc_ecc[i]); + stm32_fmc2_nfc_ham_set_ecc(*ecc_sta, + &calc_ecc[i]); + stat = stm32_fmc2_nfc_ham_correct(chip, dat, + &read_ecc[i], + &calc_ecc[i]); } ecc_sta++; } else { @@ -1095,8 +1091,8 @@ static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat, * Ecc_sta[4] = FMC2_BCHDSR4 */ if (sta_map & BIT(s)) - stat = stm32_fmc2_bch_decode(eccsize, dat, - ecc_sta); + stat = stm32_fmc2_nfc_bch_decode(eccsize, dat, + ecc_sta); ecc_sta += 5; } @@ -1119,29 +1115,29 @@ static int stm32_fmc2_sequencer_correct(struct nand_chip *chip, u8 *dat, return max_bitflips; } -static int stm32_fmc2_sequencer_read_page(struct nand_chip *chip, u8 *buf, - int oob_required, int page) +static int stm32_fmc2_nfc_seq_read_page(struct nand_chip *chip, u8 *buf, + int oob_required, int page) { struct mtd_info *mtd = nand_to_mtd(chip); - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); u8 *ecc_calc = chip->ecc.calc_buf; u8 *ecc_code = chip->ecc.code_buf; u16 sta_map; int ret; - ret = stm32_fmc2_select_chip(chip, chip->cur_cs); + ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs); if (ret) return ret; /* Configure the sequencer */ - stm32_fmc2_rw_page_init(chip, page, 0, false); + stm32_fmc2_nfc_rw_page_init(chip, page, 0, false); /* Read the page */ - ret = stm32_fmc2_xfer(chip, buf, 0, false); + ret = stm32_fmc2_nfc_xfer(chip, buf, 0, false); if (ret) return ret; - sta_map = stm32_fmc2_get_mapping_status(fmc2); + sta_map = stm32_fmc2_nfc_get_mapping_status(nfc); /* Check if errors happen */ if (likely(!sta_map)) { @@ -1168,21 +1164,21 @@ static int stm32_fmc2_sequencer_read_page(struct nand_chip *chip, u8 *buf, return chip->ecc.correct(chip, buf, ecc_code, ecc_calc); } -static int stm32_fmc2_sequencer_read_page_raw(struct nand_chip *chip, u8 *buf, - int oob_required, int page) +static int stm32_fmc2_nfc_seq_read_page_raw(struct nand_chip *chip, u8 *buf, + int oob_required, int page) { struct mtd_info *mtd = nand_to_mtd(chip); int ret; - ret = stm32_fmc2_select_chip(chip, chip->cur_cs); + ret = stm32_fmc2_nfc_select_chip(chip, chip->cur_cs); if (ret) return ret; /* Configure the sequencer */ - stm32_fmc2_rw_page_init(chip, page, 1, false); + stm32_fmc2_nfc_rw_page_init(chip, page, 1, false); /* Read the page */ - ret = stm32_fmc2_xfer(chip, buf, 1, false); + ret = stm32_fmc2_nfc_xfer(chip, buf, 1, false); if (ret) return ret; @@ -1195,31 +1191,31 @@ static int stm32_fmc2_sequencer_read_page_raw(struct nand_chip *chip, u8 *buf, return 0; } -static irqreturn_t stm32_fmc2_irq(int irq, void *dev_id) +static irqreturn_t stm32_fmc2_nfc_irq(int irq, void *dev_id) { - struct stm32_fmc2_nfc *fmc2 = (struct stm32_fmc2_nfc *)dev_id; + struct stm32_fmc2_nfc *nfc = (struct stm32_fmc2_nfc *)dev_id; - if (fmc2->irq_state == FMC2_IRQ_SEQ) + if (nfc->irq_state == FMC2_IRQ_SEQ) /* Sequencer is used */ - stm32_fmc2_disable_seq_irq(fmc2); - else if (fmc2->irq_state == FMC2_IRQ_BCH) + stm32_fmc2_nfc_disable_seq_irq(nfc); + else if (nfc->irq_state == FMC2_IRQ_BCH) /* BCH is used */ - stm32_fmc2_disable_bch_irq(fmc2); + stm32_fmc2_nfc_disable_bch_irq(nfc); - complete(&fmc2->complete); + complete(&nfc->complete); return IRQ_HANDLED; } -static void stm32_fmc2_read_data(struct nand_chip *chip, void *buf, - unsigned int len, bool force_8bit) +static void stm32_fmc2_nfc_read_data(struct nand_chip *chip, void *buf, + unsigned int len, bool force_8bit) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); - void __iomem *io_addr_r = fmc2->data_base[fmc2->cs_sel]; + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); + void __iomem *io_addr_r = nfc->data_base[nfc->cs_sel]; if (force_8bit && chip->options & NAND_BUSWIDTH_16) /* Reconfigure bus width to 8-bit */ - stm32_fmc2_set_buswidth_16(fmc2, false); + stm32_fmc2_nfc_set_buswidth_16(nfc, false); if (!IS_ALIGNED((uintptr_t)buf, sizeof(u32))) { if (!IS_ALIGNED((uintptr_t)buf, sizeof(u16)) && len) { @@ -1255,18 +1251,18 @@ static void stm32_fmc2_read_data(struct nand_chip *chip, void *buf, if (force_8bit && chip->options & NAND_BUSWIDTH_16) /* Reconfigure bus width to 16-bit */ - stm32_fmc2_set_buswidth_16(fmc2, true); + stm32_fmc2_nfc_set_buswidth_16(nfc, true); } -static void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf, - unsigned int len, bool force_8bit) +static void stm32_fmc2_nfc_write_data(struct nand_chip *chip, const void *buf, + unsigned int len, bool force_8bit) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); - void __iomem *io_addr_w = fmc2->data_base[fmc2->cs_sel]; + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); + void __iomem *io_addr_w = nfc->data_base[nfc->cs_sel]; if (force_8bit && chip->options & NAND_BUSWIDTH_16) /* Reconfigure bus width to 8-bit */ - stm32_fmc2_set_buswidth_16(fmc2, false); + stm32_fmc2_nfc_set_buswidth_16(nfc, false); if (!IS_ALIGNED((uintptr_t)buf, sizeof(u32))) { if (!IS_ALIGNED((uintptr_t)buf, sizeof(u16)) && len) { @@ -1302,44 +1298,45 @@ static void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf, if (force_8bit && chip->options & NAND_BUSWIDTH_16) /* Reconfigure bus width to 16-bit */ - stm32_fmc2_set_buswidth_16(fmc2, true); + stm32_fmc2_nfc_set_buswidth_16(nfc, true); } -static int stm32_fmc2_waitrdy(struct nand_chip *chip, unsigned long timeout_ms) +static int stm32_fmc2_nfc_waitrdy(struct nand_chip *chip, + unsigned long timeout_ms) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); const struct nand_sdr_timings *timings; u32 isr, sr; /* Check if there is no pending requests to the NAND flash */ - if (readl_relaxed_poll_timeout_atomic(fmc2->io_base + FMC2_SR, sr, + if (readl_relaxed_poll_timeout_atomic(nfc->io_base + FMC2_SR, sr, sr & FMC2_SR_NWRF, 1, 1000 * FMC2_TIMEOUT_MS)) - dev_warn(fmc2->dev, "Waitrdy timeout\n"); + dev_warn(nfc->dev, "Waitrdy timeout\n"); /* Wait tWB before R/B# signal is low */ timings = nand_get_sdr_timings(&chip->data_interface); ndelay(PSEC_TO_NSEC(timings->tWB_max)); /* R/B# signal is low, clear high level flag */ - writel_relaxed(FMC2_ICR_CIHLF, fmc2->io_base + FMC2_ICR); + writel_relaxed(FMC2_ICR_CIHLF, nfc->io_base + FMC2_ICR); /* Wait R/B# signal is high */ - return readl_relaxed_poll_timeout_atomic(fmc2->io_base + FMC2_ISR, + return readl_relaxed_poll_timeout_atomic(nfc->io_base + FMC2_ISR, isr, isr & FMC2_ISR_IHLF, 5, 1000 * timeout_ms); } -static int stm32_fmc2_exec_op(struct nand_chip *chip, - const struct nand_operation *op, - bool check_only) +static int stm32_fmc2_nfc_exec_op(struct nand_chip *chip, + const struct nand_operation *op, + bool check_only) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); const struct nand_op_instr *instr = NULL; - unsigned int op_id, i; + unsigned int op_id, i, timeout; int ret; - ret = stm32_fmc2_select_chip(chip, op->cs); + ret = stm32_fmc2_nfc_select_chip(chip, op->cs); if (ret) return ret; @@ -1352,30 +1349,30 @@ static int stm32_fmc2_exec_op(struct nand_chip *chip, switch (instr->type) { case NAND_OP_CMD_INSTR: writeb_relaxed(instr->ctx.cmd.opcode, - fmc2->cmd_base[fmc2->cs_sel]); + nfc->cmd_base[nfc->cs_sel]); break; case NAND_OP_ADDR_INSTR: for (i = 0; i < instr->ctx.addr.naddrs; i++) writeb_relaxed(instr->ctx.addr.addrs[i], - fmc2->addr_base[fmc2->cs_sel]); + nfc->addr_base[nfc->cs_sel]); break; case NAND_OP_DATA_IN_INSTR: - stm32_fmc2_read_data(chip, instr->ctx.data.buf.in, - instr->ctx.data.len, - instr->ctx.data.force_8bit); + stm32_fmc2_nfc_read_data(chip, instr->ctx.data.buf.in, + instr->ctx.data.len, + instr->ctx.data.force_8bit); break; case NAND_OP_DATA_OUT_INSTR: - stm32_fmc2_write_data(chip, instr->ctx.data.buf.out, - instr->ctx.data.len, - instr->ctx.data.force_8bit); + stm32_fmc2_nfc_write_data(chip, instr->ctx.data.buf.out, + instr->ctx.data.len, + instr->ctx.data.force_8bit); break; case NAND_OP_WAITRDY_INSTR: - ret = stm32_fmc2_waitrdy(chip, - instr->ctx.waitrdy.timeout_ms); + timeout = instr->ctx.waitrdy.timeout_ms; + ret = stm32_fmc2_nfc_waitrdy(chip, timeout); break; } } @@ -1383,13 +1380,13 @@ static int stm32_fmc2_exec_op(struct nand_chip *chip, return ret; } -static void stm32_fmc2_init(struct stm32_fmc2_nfc *fmc2) +static void stm32_fmc2_nfc_init(struct stm32_fmc2_nfc *nfc) { - u32 pcr = readl_relaxed(fmc2->io_base + FMC2_PCR); - u32 bcr1 = readl_relaxed(fmc2->io_base + FMC2_BCR1); + u32 pcr = readl_relaxed(nfc->io_base + FMC2_PCR); + u32 bcr1 = readl_relaxed(nfc->io_base + FMC2_BCR1); /* Set CS used to undefined */ - fmc2->cs_sel = -1; + nfc->cs_sel = -1; /* Enable wait feature and nand flash memory bank */ pcr |= FMC2_PCR_PWAITEN; @@ -1419,19 +1416,19 @@ static void stm32_fmc2_init(struct stm32_fmc2_nfc *fmc2) /* Enable FMC2 controller */ bcr1 |= FMC2_BCR1_FMC2EN; - writel_relaxed(bcr1, fmc2->io_base + FMC2_BCR1); - writel_relaxed(pcr, fmc2->io_base + FMC2_PCR); - writel_relaxed(FMC2_PMEM_DEFAULT, fmc2->io_base + FMC2_PMEM); - writel_relaxed(FMC2_PATT_DEFAULT, fmc2->io_base + FMC2_PATT); + writel_relaxed(bcr1, nfc->io_base + FMC2_BCR1); + writel_relaxed(pcr, nfc->io_base + FMC2_PCR); + writel_relaxed(FMC2_PMEM_DEFAULT, nfc->io_base + FMC2_PMEM); + writel_relaxed(FMC2_PATT_DEFAULT, nfc->io_base + FMC2_PATT); } -static void stm32_fmc2_calc_timings(struct nand_chip *chip, - const struct nand_sdr_timings *sdrt) +static void stm32_fmc2_nfc_calc_timings(struct nand_chip *chip, + const struct nand_sdr_timings *sdrt) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct stm32_fmc2_nand *nand = to_fmc2_nand(chip); struct stm32_fmc2_timings *tims = &nand->timings; - unsigned long hclk = clk_get_rate(fmc2->clk); + unsigned long hclk = clk_get_rate(nfc->clk); unsigned long hclkp = NSEC_PER_SEC / (hclk / 1000); unsigned long timing, tar, tclr, thiz, twait; unsigned long tset_mem, tset_att, thold_mem, thold_att; @@ -1555,8 +1552,8 @@ static void stm32_fmc2_calc_timings(struct nand_chip *chip, tims->thold_att = clamp_val(timing, 1, FMC2_PMEM_PATT_TIMING_MASK); } -static int stm32_fmc2_setup_interface(struct nand_chip *chip, int chipnr, - const struct nand_data_interface *conf) +static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, int chipnr, + const struct nand_data_interface *conf) { const struct nand_sdr_timings *sdrt; @@ -1567,68 +1564,67 @@ static int stm32_fmc2_setup_interface(struct nand_chip *chip, int chipnr, if (chipnr == NAND_DATA_IFACE_CHECK_ONLY) return 0; - stm32_fmc2_calc_timings(chip, sdrt); - stm32_fmc2_timings_init(chip); + stm32_fmc2_nfc_calc_timings(chip, sdrt); + stm32_fmc2_nfc_timings_init(chip); return 0; } -static int stm32_fmc2_dma_setup(struct stm32_fmc2_nfc *fmc2) +static int stm32_fmc2_nfc_dma_setup(struct stm32_fmc2_nfc *nfc) { int ret = 0; - fmc2->dma_tx_ch = dma_request_chan(fmc2->dev, "tx"); - if (IS_ERR(fmc2->dma_tx_ch)) { - ret = PTR_ERR(fmc2->dma_tx_ch); + nfc->dma_tx_ch = dma_request_chan(nfc->dev, "tx"); + if (IS_ERR(nfc->dma_tx_ch)) { + ret = PTR_ERR(nfc->dma_tx_ch); if (ret != -ENODEV) - dev_err(fmc2->dev, + dev_err(nfc->dev, "failed to request tx DMA channel: %d\n", ret); - fmc2->dma_tx_ch = NULL; + nfc->dma_tx_ch = NULL; goto err_dma; } - fmc2->dma_rx_ch = dma_request_chan(fmc2->dev, "rx"); - if (IS_ERR(fmc2->dma_rx_ch)) { - ret = PTR_ERR(fmc2->dma_rx_ch); + nfc->dma_rx_ch = dma_request_chan(nfc->dev, "rx"); + if (IS_ERR(nfc->dma_rx_ch)) { + ret = PTR_ERR(nfc->dma_rx_ch); if (ret != -ENODEV) - dev_err(fmc2->dev, + dev_err(nfc->dev, "failed to request rx DMA channel: %d\n", ret); - fmc2->dma_rx_ch = NULL; + nfc->dma_rx_ch = NULL; goto err_dma; } - fmc2->dma_ecc_ch = dma_request_chan(fmc2->dev, "ecc"); - if (IS_ERR(fmc2->dma_ecc_ch)) { - ret = PTR_ERR(fmc2->dma_ecc_ch); + nfc->dma_ecc_ch = dma_request_chan(nfc->dev, "ecc"); + if (IS_ERR(nfc->dma_ecc_ch)) { + ret = PTR_ERR(nfc->dma_ecc_ch); if (ret != -ENODEV) - dev_err(fmc2->dev, + dev_err(nfc->dev, "failed to request ecc DMA channel: %d\n", ret); - fmc2->dma_ecc_ch = NULL; + nfc->dma_ecc_ch = NULL; goto err_dma; } - ret = sg_alloc_table(&fmc2->dma_ecc_sg, FMC2_MAX_SG, GFP_KERNEL); + ret = sg_alloc_table(&nfc->dma_ecc_sg, FMC2_MAX_SG, GFP_KERNEL); if (ret) return ret; /* Allocate a buffer to store ECC status registers */ - fmc2->ecc_buf = devm_kzalloc(fmc2->dev, FMC2_MAX_ECC_BUF_LEN, - GFP_KERNEL); - if (!fmc2->ecc_buf) + nfc->ecc_buf = devm_kzalloc(nfc->dev, FMC2_MAX_ECC_BUF_LEN, GFP_KERNEL); + if (!nfc->ecc_buf) return -ENOMEM; - ret = sg_alloc_table(&fmc2->dma_data_sg, FMC2_MAX_SG, GFP_KERNEL); + ret = sg_alloc_table(&nfc->dma_data_sg, FMC2_MAX_SG, GFP_KERNEL); if (ret) return ret; - init_completion(&fmc2->dma_data_complete); - init_completion(&fmc2->dma_ecc_complete); + init_completion(&nfc->dma_data_complete); + init_completion(&nfc->dma_ecc_complete); return 0; err_dma: if (ret == -ENODEV) { - dev_warn(fmc2->dev, + dev_warn(nfc->dev, "DMAs not defined in the DT, polling mode is used\n"); ret = 0; } @@ -1636,34 +1632,34 @@ static int stm32_fmc2_dma_setup(struct stm32_fmc2_nfc *fmc2) return ret; } -static void stm32_fmc2_nand_callbacks_setup(struct nand_chip *chip) +static void stm32_fmc2_nfc_nand_callbacks_setup(struct nand_chip *chip) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); /* * Specific callbacks to read/write a page depending on * the mode (polling/sequencer) and the algo used (Hamming, BCH). */ - if (fmc2->dma_tx_ch && fmc2->dma_rx_ch && fmc2->dma_ecc_ch) { + if (nfc->dma_tx_ch && nfc->dma_rx_ch && nfc->dma_ecc_ch) { /* DMA => use sequencer mode callbacks */ - chip->ecc.correct = stm32_fmc2_sequencer_correct; - chip->ecc.write_page = stm32_fmc2_sequencer_write_page; - chip->ecc.read_page = stm32_fmc2_sequencer_read_page; - chip->ecc.write_page_raw = stm32_fmc2_sequencer_write_page_raw; - chip->ecc.read_page_raw = stm32_fmc2_sequencer_read_page_raw; + chip->ecc.correct = stm32_fmc2_nfc_seq_correct; + chip->ecc.write_page = stm32_fmc2_nfc_seq_write_page; + chip->ecc.read_page = stm32_fmc2_nfc_seq_read_page; + chip->ecc.write_page_raw = stm32_fmc2_nfc_seq_write_page_raw; + chip->ecc.read_page_raw = stm32_fmc2_nfc_seq_read_page_raw; } else { /* No DMA => use polling mode callbacks */ - chip->ecc.hwctl = stm32_fmc2_hwctl; + chip->ecc.hwctl = stm32_fmc2_nfc_hwctl; if (chip->ecc.strength == FMC2_ECC_HAM) { /* Hamming is used */ - chip->ecc.calculate = stm32_fmc2_ham_calculate; - chip->ecc.correct = stm32_fmc2_ham_correct; + chip->ecc.calculate = stm32_fmc2_nfc_ham_calculate; + chip->ecc.correct = stm32_fmc2_nfc_ham_correct; chip->ecc.options |= NAND_ECC_GENERIC_ERASED_CHECK; } else { /* BCH is used */ - chip->ecc.calculate = stm32_fmc2_bch_calculate; - chip->ecc.correct = stm32_fmc2_bch_correct; - chip->ecc.read_page = stm32_fmc2_read_page; + chip->ecc.calculate = stm32_fmc2_nfc_bch_calculate; + chip->ecc.correct = stm32_fmc2_nfc_bch_correct; + chip->ecc.read_page = stm32_fmc2_nfc_read_page; } } @@ -1676,8 +1672,8 @@ static void stm32_fmc2_nand_callbacks_setup(struct nand_chip *chip) chip->ecc.bytes = chip->options & NAND_BUSWIDTH_16 ? 8 : 7; } -static int stm32_fmc2_nand_ooblayout_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) +static int stm32_fmc2_nfc_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) { struct nand_chip *chip = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &chip->ecc; @@ -1691,8 +1687,8 @@ static int stm32_fmc2_nand_ooblayout_ecc(struct mtd_info *mtd, int section, return 0; } -static int stm32_fmc2_nand_ooblayout_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) +static int stm32_fmc2_nfc_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) { struct nand_chip *chip = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &chip->ecc; @@ -1706,12 +1702,12 @@ static int stm32_fmc2_nand_ooblayout_free(struct mtd_info *mtd, int section, return 0; } -static const struct mtd_ooblayout_ops stm32_fmc2_nand_ooblayout_ops = { - .ecc = stm32_fmc2_nand_ooblayout_ecc, - .free = stm32_fmc2_nand_ooblayout_free, +static const struct mtd_ooblayout_ops stm32_fmc2_nfc_ooblayout_ops = { + .ecc = stm32_fmc2_nfc_ooblayout_ecc, + .free = stm32_fmc2_nfc_ooblayout_free, }; -static int stm32_fmc2_calc_ecc_bytes(int step_size, int strength) +static int stm32_fmc2_nfc_calc_ecc_bytes(int step_size, int strength) { /* Hamming */ if (strength == FMC2_ECC_HAM) @@ -1725,13 +1721,13 @@ static int stm32_fmc2_calc_ecc_bytes(int step_size, int strength) return 8; } -NAND_ECC_CAPS_SINGLE(stm32_fmc2_ecc_caps, stm32_fmc2_calc_ecc_bytes, +NAND_ECC_CAPS_SINGLE(stm32_fmc2_nfc_ecc_caps, stm32_fmc2_nfc_calc_ecc_bytes, FMC2_ECC_STEP_SIZE, FMC2_ECC_HAM, FMC2_ECC_BCH4, FMC2_ECC_BCH8); -static int stm32_fmc2_attach_chip(struct nand_chip *chip) +static int stm32_fmc2_nfc_attach_chip(struct nand_chip *chip) { - struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller); + struct stm32_fmc2_nfc *nfc = to_stm32_nfc(chip->controller); struct mtd_info *mtd = nand_to_mtd(chip); int ret; @@ -1743,45 +1739,45 @@ static int stm32_fmc2_attach_chip(struct nand_chip *chip) * ECC sector size = 512 */ if (chip->ecc.mode != NAND_ECC_HW) { - dev_err(fmc2->dev, "nand_ecc_mode is not well defined in the DT\n"); + dev_err(nfc->dev, "nand_ecc_mode is not well defined in the DT\n"); return -EINVAL; } - ret = nand_ecc_choose_conf(chip, &stm32_fmc2_ecc_caps, + ret = nand_ecc_choose_conf(chip, &stm32_fmc2_nfc_ecc_caps, mtd->oobsize - FMC2_BBM_LEN); if (ret) { - dev_err(fmc2->dev, "no valid ECC settings set\n"); + dev_err(nfc->dev, "no valid ECC settings set\n"); return ret; } if (mtd->writesize / chip->ecc.size > FMC2_MAX_SG) { - dev_err(fmc2->dev, "nand page size is not supported\n"); + dev_err(nfc->dev, "nand page size is not supported\n"); return -EINVAL; } if (chip->bbt_options & NAND_BBT_USE_FLASH) chip->bbt_options |= NAND_BBT_NO_OOB; - stm32_fmc2_nand_callbacks_setup(chip); + stm32_fmc2_nfc_nand_callbacks_setup(chip); - mtd_set_ooblayout(mtd, &stm32_fmc2_nand_ooblayout_ops); + mtd_set_ooblayout(mtd, &stm32_fmc2_nfc_ooblayout_ops); if (chip->options & NAND_BUSWIDTH_16) - stm32_fmc2_set_buswidth_16(fmc2, true); + stm32_fmc2_nfc_set_buswidth_16(nfc, true); return 0; } -static const struct nand_controller_ops stm32_fmc2_nand_controller_ops = { - .attach_chip = stm32_fmc2_attach_chip, - .exec_op = stm32_fmc2_exec_op, - .setup_data_interface = stm32_fmc2_setup_interface, +static const struct nand_controller_ops stm32_fmc2_nfc_controller_ops = { + .attach_chip = stm32_fmc2_nfc_attach_chip, + .exec_op = stm32_fmc2_nfc_exec_op, + .setup_data_interface = stm32_fmc2_nfc_setup_interface, }; -static int stm32_fmc2_parse_child(struct stm32_fmc2_nfc *fmc2, - struct device_node *dn) +static int stm32_fmc2_nfc_parse_child(struct stm32_fmc2_nfc *nfc, + struct device_node *dn) { - struct stm32_fmc2_nand *nand = &fmc2->nand; + struct stm32_fmc2_nand *nand = &nfc->nand; u32 cs; int ret, i; @@ -1790,29 +1786,29 @@ static int stm32_fmc2_parse_child(struct stm32_fmc2_nfc *fmc2, nand->ncs /= sizeof(u32); if (!nand->ncs) { - dev_err(fmc2->dev, "invalid reg property size\n"); + dev_err(nfc->dev, "invalid reg property size\n"); return -EINVAL; } for (i = 0; i < nand->ncs; i++) { ret = of_property_read_u32_index(dn, "reg", i, &cs); if (ret) { - dev_err(fmc2->dev, "could not retrieve reg property: %d\n", + dev_err(nfc->dev, "could not retrieve reg property: %d\n", ret); return ret; } if (cs > FMC2_MAX_CE) { - dev_err(fmc2->dev, "invalid reg value: %d\n", cs); + dev_err(nfc->dev, "invalid reg value: %d\n", cs); return -EINVAL; } - if (fmc2->cs_assigned & BIT(cs)) { - dev_err(fmc2->dev, "cs already assigned: %d\n", cs); + if (nfc->cs_assigned & BIT(cs)) { + dev_err(nfc->dev, "cs already assigned: %d\n", cs); return -EINVAL; } - fmc2->cs_assigned |= BIT(cs); + nfc->cs_assigned |= BIT(cs); nand->cs_used[i] = cs; } @@ -1821,25 +1817,25 @@ static int stm32_fmc2_parse_child(struct stm32_fmc2_nfc *fmc2, return 0; } -static int stm32_fmc2_parse_dt(struct stm32_fmc2_nfc *fmc2) +static int stm32_fmc2_nfc_parse_dt(struct stm32_fmc2_nfc *nfc) { - struct device_node *dn = fmc2->dev->of_node; + struct device_node *dn = nfc->dev->of_node; struct device_node *child; int nchips = of_get_child_count(dn); int ret = 0; if (!nchips) { - dev_err(fmc2->dev, "NAND chip not defined\n"); + dev_err(nfc->dev, "NAND chip not defined\n"); return -EINVAL; } if (nchips > 1) { - dev_err(fmc2->dev, "too many NAND chips defined\n"); + dev_err(nfc->dev, "too many NAND chips defined\n"); return -EINVAL; } for_each_child_of_node(dn, child) { - ret = stm32_fmc2_parse_child(fmc2, child); + ret = stm32_fmc2_nfc_parse_child(nfc, child); if (ret < 0) { of_node_put(child); return ret; @@ -1849,79 +1845,79 @@ static int stm32_fmc2_parse_dt(struct stm32_fmc2_nfc *fmc2) return ret; } -static int stm32_fmc2_probe(struct platform_device *pdev) +static int stm32_fmc2_nfc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct reset_control *rstc; - struct stm32_fmc2_nfc *fmc2; + struct stm32_fmc2_nfc *nfc; struct stm32_fmc2_nand *nand; struct resource *res; struct mtd_info *mtd; struct nand_chip *chip; int chip_cs, mem_region, ret, irq; - fmc2 = devm_kzalloc(dev, sizeof(*fmc2), GFP_KERNEL); - if (!fmc2) + nfc = devm_kzalloc(dev, sizeof(*nfc), GFP_KERNEL); + if (!nfc) return -ENOMEM; - fmc2->dev = dev; - nand_controller_init(&fmc2->base); - fmc2->base.ops = &stm32_fmc2_nand_controller_ops; + nfc->dev = dev; + nand_controller_init(&nfc->base); + nfc->base.ops = &stm32_fmc2_nfc_controller_ops; - ret = stm32_fmc2_parse_dt(fmc2); + ret = stm32_fmc2_nfc_parse_dt(nfc); if (ret) return ret; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - fmc2->io_base = devm_ioremap_resource(dev, res); - if (IS_ERR(fmc2->io_base)) - return PTR_ERR(fmc2->io_base); + nfc->io_base = devm_ioremap_resource(dev, res); + if (IS_ERR(nfc->io_base)) + return PTR_ERR(nfc->io_base); - fmc2->io_phys_addr = res->start; + nfc->io_phys_addr = res->start; for (chip_cs = 0, mem_region = 1; chip_cs < FMC2_MAX_CE; chip_cs++, mem_region += 3) { - if (!(fmc2->cs_assigned & BIT(chip_cs))) + if (!(nfc->cs_assigned & BIT(chip_cs))) continue; res = platform_get_resource(pdev, IORESOURCE_MEM, mem_region); - fmc2->data_base[chip_cs] = devm_ioremap_resource(dev, res); - if (IS_ERR(fmc2->data_base[chip_cs])) - return PTR_ERR(fmc2->data_base[chip_cs]); + nfc->data_base[chip_cs] = devm_ioremap_resource(dev, res); + if (IS_ERR(nfc->data_base[chip_cs])) + return PTR_ERR(nfc->data_base[chip_cs]); - fmc2->data_phys_addr[chip_cs] = res->start; + nfc->data_phys_addr[chip_cs] = res->start; res = platform_get_resource(pdev, IORESOURCE_MEM, mem_region + 1); - fmc2->cmd_base[chip_cs] = devm_ioremap_resource(dev, res); - if (IS_ERR(fmc2->cmd_base[chip_cs])) - return PTR_ERR(fmc2->cmd_base[chip_cs]); + nfc->cmd_base[chip_cs] = devm_ioremap_resource(dev, res); + if (IS_ERR(nfc->cmd_base[chip_cs])) + return PTR_ERR(nfc->cmd_base[chip_cs]); res = platform_get_resource(pdev, IORESOURCE_MEM, mem_region + 2); - fmc2->addr_base[chip_cs] = devm_ioremap_resource(dev, res); - if (IS_ERR(fmc2->addr_base[chip_cs])) - return PTR_ERR(fmc2->addr_base[chip_cs]); + nfc->addr_base[chip_cs] = devm_ioremap_resource(dev, res); + if (IS_ERR(nfc->addr_base[chip_cs])) + return PTR_ERR(nfc->addr_base[chip_cs]); } irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; - ret = devm_request_irq(dev, irq, stm32_fmc2_irq, 0, - dev_name(dev), fmc2); + ret = devm_request_irq(dev, irq, stm32_fmc2_nfc_irq, 0, + dev_name(dev), nfc); if (ret) { dev_err(dev, "failed to request irq\n"); return ret; } - init_completion(&fmc2->complete); + init_completion(&nfc->complete); - fmc2->clk = devm_clk_get(dev, NULL); - if (IS_ERR(fmc2->clk)) - return PTR_ERR(fmc2->clk); + nfc->clk = devm_clk_get(dev, NULL); + if (IS_ERR(nfc->clk)) + return PTR_ERR(nfc->clk); - ret = clk_prepare_enable(fmc2->clk); + ret = clk_prepare_enable(nfc->clk); if (ret) { dev_err(dev, "can not enable the clock\n"); return ret; @@ -1937,18 +1933,18 @@ static int stm32_fmc2_probe(struct platform_device *pdev) reset_control_deassert(rstc); } - ret = stm32_fmc2_dma_setup(fmc2); + ret = stm32_fmc2_nfc_dma_setup(nfc); if (ret) goto err_release_dma; - stm32_fmc2_init(fmc2); + stm32_fmc2_nfc_init(nfc); - nand = &fmc2->nand; + nand = &nfc->nand; chip = &nand->chip; mtd = nand_to_mtd(chip); mtd->dev.parent = dev; - chip->controller = &fmc2->base; + chip->controller = &nfc->base; chip->options |= NAND_BUSWIDTH_AUTO | NAND_NO_SUBPAGE_WRITE | NAND_USE_BOUNCE_BUFFER; @@ -1966,7 +1962,7 @@ static int stm32_fmc2_probe(struct platform_device *pdev) if (ret) goto err_nand_cleanup; - platform_set_drvdata(pdev, fmc2); + platform_set_drvdata(pdev, nfc); return 0; @@ -1974,73 +1970,73 @@ static int stm32_fmc2_probe(struct platform_device *pdev) nand_cleanup(chip); err_release_dma: - if (fmc2->dma_ecc_ch) - dma_release_channel(fmc2->dma_ecc_ch); - if (fmc2->dma_tx_ch) - dma_release_channel(fmc2->dma_tx_ch); - if (fmc2->dma_rx_ch) - dma_release_channel(fmc2->dma_rx_ch); + if (nfc->dma_ecc_ch) + dma_release_channel(nfc->dma_ecc_ch); + if (nfc->dma_tx_ch) + dma_release_channel(nfc->dma_tx_ch); + if (nfc->dma_rx_ch) + dma_release_channel(nfc->dma_rx_ch); - sg_free_table(&fmc2->dma_data_sg); - sg_free_table(&fmc2->dma_ecc_sg); + sg_free_table(&nfc->dma_data_sg); + sg_free_table(&nfc->dma_ecc_sg); err_clk_disable: - clk_disable_unprepare(fmc2->clk); + clk_disable_unprepare(nfc->clk); return ret; } -static int stm32_fmc2_remove(struct platform_device *pdev) +static int stm32_fmc2_nfc_remove(struct platform_device *pdev) { - struct stm32_fmc2_nfc *fmc2 = platform_get_drvdata(pdev); - struct stm32_fmc2_nand *nand = &fmc2->nand; + struct stm32_fmc2_nfc *nfc = platform_get_drvdata(pdev); + struct stm32_fmc2_nand *nand = &nfc->nand; nand_release(&nand->chip); - if (fmc2->dma_ecc_ch) - dma_release_channel(fmc2->dma_ecc_ch); - if (fmc2->dma_tx_ch) - dma_release_channel(fmc2->dma_tx_ch); - if (fmc2->dma_rx_ch) - dma_release_channel(fmc2->dma_rx_ch); + if (nfc->dma_ecc_ch) + dma_release_channel(nfc->dma_ecc_ch); + if (nfc->dma_tx_ch) + dma_release_channel(nfc->dma_tx_ch); + if (nfc->dma_rx_ch) + dma_release_channel(nfc->dma_rx_ch); - sg_free_table(&fmc2->dma_data_sg); - sg_free_table(&fmc2->dma_ecc_sg); + sg_free_table(&nfc->dma_data_sg); + sg_free_table(&nfc->dma_ecc_sg); - clk_disable_unprepare(fmc2->clk); + clk_disable_unprepare(nfc->clk); return 0; } -static int __maybe_unused stm32_fmc2_suspend(struct device *dev) +static int __maybe_unused stm32_fmc2_nfc_suspend(struct device *dev) { - struct stm32_fmc2_nfc *fmc2 = dev_get_drvdata(dev); + struct stm32_fmc2_nfc *nfc = dev_get_drvdata(dev); - clk_disable_unprepare(fmc2->clk); + clk_disable_unprepare(nfc->clk); pinctrl_pm_select_sleep_state(dev); return 0; } -static int __maybe_unused stm32_fmc2_resume(struct device *dev) +static int __maybe_unused stm32_fmc2_nfc_resume(struct device *dev) { - struct stm32_fmc2_nfc *fmc2 = dev_get_drvdata(dev); - struct stm32_fmc2_nand *nand = &fmc2->nand; + struct stm32_fmc2_nfc *nfc = dev_get_drvdata(dev); + struct stm32_fmc2_nand *nand = &nfc->nand; int chip_cs, ret; pinctrl_pm_select_default_state(dev); - ret = clk_prepare_enable(fmc2->clk); + ret = clk_prepare_enable(nfc->clk); if (ret) { dev_err(dev, "can not enable the clock\n"); return ret; } - stm32_fmc2_init(fmc2); + stm32_fmc2_nfc_init(nfc); for (chip_cs = 0; chip_cs < FMC2_MAX_CE; chip_cs++) { - if (!(fmc2->cs_assigned & BIT(chip_cs))) + if (!(nfc->cs_assigned & BIT(chip_cs))) continue; nand_reset(&nand->chip, chip_cs); @@ -2049,27 +2045,27 @@ static int __maybe_unused stm32_fmc2_resume(struct device *dev) return 0; } -static SIMPLE_DEV_PM_OPS(stm32_fmc2_pm_ops, stm32_fmc2_suspend, - stm32_fmc2_resume); +static SIMPLE_DEV_PM_OPS(stm32_fmc2_nfc_pm_ops, stm32_fmc2_nfc_suspend, + stm32_fmc2_nfc_resume); -static const struct of_device_id stm32_fmc2_match[] = { +static const struct of_device_id stm32_fmc2_nfc_match[] = { {.compatible = "st,stm32mp15-fmc2"}, {} }; -MODULE_DEVICE_TABLE(of, stm32_fmc2_match); +MODULE_DEVICE_TABLE(of, stm32_fmc2_nfc_match); -static struct platform_driver stm32_fmc2_driver = { - .probe = stm32_fmc2_probe, - .remove = stm32_fmc2_remove, +static struct platform_driver stm32_fmc2_nfc_driver = { + .probe = stm32_fmc2_nfc_probe, + .remove = stm32_fmc2_nfc_remove, .driver = { - .name = "stm32_fmc2_nand", - .of_match_table = stm32_fmc2_match, - .pm = &stm32_fmc2_pm_ops, + .name = "stm32_fmc2_nfc", + .of_match_table = stm32_fmc2_nfc_match, + .pm = &stm32_fmc2_nfc_pm_ops, }, }; -module_platform_driver(stm32_fmc2_driver); +module_platform_driver(stm32_fmc2_nfc_driver); -MODULE_ALIAS("platform:stm32_fmc2_nand"); +MODULE_ALIAS("platform:stm32_fmc2_nfc"); MODULE_AUTHOR("Christophe Kerello "); -MODULE_DESCRIPTION("STMicroelectronics STM32 FMC2 nand driver"); +MODULE_DESCRIPTION("STMicroelectronics STM32 FMC2 NFC driver"); MODULE_LICENSE("GPL v2"); -- 1.9.1