From patchwork Thu Mar 2 01:18:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergio Prado X-Patchwork-Id: 9599425 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4346A604A8 for ; Thu, 2 Mar 2017 01:21:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 318702857F for ; Thu, 2 Mar 2017 01:21:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2607C28583; Thu, 2 Mar 2017 01:21:12 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 28B002857F for ; Thu, 2 Mar 2017 01:21:10 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=lpiKJo5tBUO49EF2p1o86R6pj6m4+t7O5p+FIKK57/A=; b=HVQLcrYQMQ+RbpqyWbM2mNaUlA cM59R+UO1AMpFTBbq/1rClPeQLLdHncrlXMoFh6IIkIFYOuyNF0QeOajlAqnYHWdev2XMyL1mF92w vGxSoJjY8H2HBTEHcA6oLx/HSbYpNrI3pCnF+8PzwPqADApCik/+MDiQGpUqfpkLNI8BgUIgUlrE9 nw9Ak8Wlia8HbrX5UFeMcOuCCbnS+GrM+Go9QJosDfVoXr78CykQHs5Nh0upWCZ7rCgmKTwpxtfWn yvmGIc2kNZi/zPT/imcuaETyxIof645OXdjqe1NdL1aFLSd2ecpODEeiYYrgRdWnzZF+9PDlrkzgu IpCVgA8w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cjFQZ-00070U-4c; Thu, 02 Mar 2017 01:21:07 +0000 Received: from mail-qk0-x243.google.com ([2607:f8b0:400d:c09::243]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cjFPM-0005C6-5i for linux-arm-kernel@lists.infradead.org; Thu, 02 Mar 2017 01:19:54 +0000 Received: by mail-qk0-x243.google.com with SMTP id s186so15358094qkb.1 for ; Wed, 01 Mar 2017 17:19:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=e-labworks-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=mLu5nmKotW+gbk1lwwIo0O+mnNwZYo+mGSQcpmEkxng=; b=m0JY/UGgzIJ7TtFk7WHwi1B5qWARVltkbPbxzEnF9rEecmuSlxAJrO5oKVUBmSWH9l oYMiJSs/isXjeqp0BtElgcVD2+7fDq22KI3DmQEihWScZdPTgBBT9vKN6r/DT5agNF1j 9imy9Z1P10I97s3OwlDY3j7A/iq6YQZiNCcuAfnVWk07J8mVuFAHuazl1NaVsv5O/1aL 2vqsHV8Td3C6FCT92Yz/+T7vD0pycEYbJX4aPp9Adrj5MSLrTkR0C3I3LghQo5y1QyXV OWTvhWEh/d8KxXh8UIUR/82OB1PI3a6jzEuVYxEQ771F/N31KtNXJPO+S6tMSGxzVXE7 365g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=mLu5nmKotW+gbk1lwwIo0O+mnNwZYo+mGSQcpmEkxng=; b=X9TF8EfLMpWIQ+OTsOBeKAAYYBdjKNv3bTRYnxe+34p6BLC5QRmAfzRpuxDCMNZv3q nmxwSpj8o8P6HC3YwCJBVtV3K0MsEy3jeeY97QG/qUNhJ1EL93Ee/vo3NqZhKaXf4kok YOg+Bu2Yoc1V5VAhBAWj6rALcsokYYT6lmTb9DpaBWLEOt4jdvXH2bA/ZyaxFiHUutl8 E/XY0nhX/wc31suIahSr472jJXqSR+Lrlc4q3TTh2upPocxEmUpDiftYHmsLxY6mMarl guCQqhkh1gf7cb5HACuDWlwnRN6HMJAMOPl6OC7Fvad3bfmT6mecmZ746alcgGXj5F5p DoeQ== X-Gm-Message-State: AMke39mIGHxRykXtNYoycnC0z2JMNy9SLuQp55KNTcTk3O2mTVOv9mamrj6MiNxsPSMvBg== X-Received: by 10.55.42.24 with SMTP id q24mr13852791qkh.51.1488417571942; Wed, 01 Mar 2017 17:19:31 -0800 (PST) Received: from localhost.localdomain ([177.32.242.153]) by smtp.gmail.com with ESMTPSA id w44sm4373330qta.4.2017.03.01.17.19.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 01 Mar 2017 17:19:31 -0800 (PST) From: Sergio Prado To: ulf.hansson@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ben-linux@fluff.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 2/2] mmc: host: s3cmci: allow probing from device tree Date: Wed, 1 Mar 2017 22:18:56 -0300 Message-Id: <1488417536-15110-3-git-send-email-sergio.prado@e-labworks.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1488417536-15110-1-git-send-email-sergio.prado@e-labworks.com> References: <1488417536-15110-1-git-send-email-sergio.prado@e-labworks.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170301_171952_534986_8CBA9692 X-CRM114-Status: GOOD ( 19.01 ) 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: Sergio Prado MIME-Version: 1.0 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 Allows configuring Samsung S3C24XX MMC/SD/SDIO controller using a device tree. Signed-off-by: Sergio Prado --- drivers/mmc/host/s3cmci.c | 298 ++++++++++++++++++++++++---------------------- drivers/mmc/host/s3cmci.h | 3 +- 2 files changed, 158 insertions(+), 143 deletions(-) diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index 7a173f8c455b..d066dbdb957c 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -24,6 +24,10 @@ #include #include #include +#include +#include +#include +#include #include #include @@ -128,6 +132,22 @@ enum dbg_channels { dbg_conf = (1 << 8), }; +struct s3cmci_variant_data { + int s3c2440_compatible; +}; + +static const struct s3cmci_variant_data s3c2410_s3cmci_variant_data = { + .s3c2440_compatible = 0, +}; + +static const struct s3cmci_variant_data s3c2412_s3cmci_variant_data = { + .s3c2440_compatible = 1, +}; + +static const struct s3cmci_variant_data s3c2440_s3cmci_variant_data = { + .s3c2440_compatible = 1, +}; + static const int dbgmap_err = dbg_fail; static const int dbgmap_info = dbg_info | dbg_conf; static const int dbgmap_debug = dbg_err | dbg_debug; @@ -731,7 +751,7 @@ static irqreturn_t s3cmci_irq(int irq, void *dev_id) goto clear_status_bits; /* Check for FIFO failure */ - if (host->is2440) { + if (host->variant->s3c2440_compatible) { if (mci_fsta & S3C2440_SDIFSTA_FIFOFAIL) { dbg(host, dbg_err, "FIFO failure\n"); host->mrq->data->error = -EILSEQ; @@ -807,21 +827,6 @@ static irqreturn_t s3cmci_irq(int irq, void *dev_id) } -/* - * ISR for the CardDetect Pin -*/ - -static irqreturn_t s3cmci_irq_cd(int irq, void *dev_id) -{ - struct s3cmci_host *host = (struct s3cmci_host *)dev_id; - - dbg(host, dbg_irq, "card detect\n"); - - mmc_detect_change(host->mmc, msecs_to_jiffies(500)); - - return IRQ_HANDLED; -} - static void s3cmci_dma_done_callback(void *arg) { struct s3cmci_host *host = arg; @@ -913,7 +918,7 @@ static void finalize_request(struct s3cmci_host *host) if (s3cmci_host_usedma(host)) dmaengine_terminate_all(host->dma); - if (host->is2440) { + if (host->variant->s3c2440_compatible) { /* Clear failure register and reset fifo. */ writel(S3C2440_SDIFSTA_FIFORESET | S3C2440_SDIFSTA_FIFOFAIL, @@ -1026,7 +1031,7 @@ static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data) dcon |= S3C2410_SDIDCON_XFER_RXSTART; } - if (host->is2440) { + if (host->variant->s3c2440_compatible) { dcon |= S3C2440_SDIDCON_DS_WORD; dcon |= S3C2440_SDIDCON_DATSTART; } @@ -1045,7 +1050,7 @@ static int s3cmci_setup_data(struct s3cmci_host *host, struct mmc_data *data) /* write TIMER register */ - if (host->is2440) { + if (host->variant->s3c2440_compatible) { writel(0x007FFFFF, host->base + S3C2410_SDITIMER); } else { writel(0x0000FFFF, host->base + S3C2410_SDITIMER); @@ -1177,19 +1182,6 @@ static void s3cmci_send_request(struct mmc_host *mmc) s3cmci_enable_irq(host, true); } -static int s3cmci_card_present(struct mmc_host *mmc) -{ - struct s3cmci_host *host = mmc_priv(mmc); - struct s3c24xx_mci_pdata *pdata = host->pdata; - int ret; - - if (pdata->no_detect) - return -ENOSYS; - - ret = gpio_get_value(pdata->gpio_detect) ? 0 : 1; - return ret ^ pdata->detect_invert; -} - static void s3cmci_request(struct mmc_host *mmc, struct mmc_request *mrq) { struct s3cmci_host *host = mmc_priv(mmc); @@ -1198,7 +1190,7 @@ static void s3cmci_request(struct mmc_host *mmc, struct mmc_request *mrq) host->cmd_is_stop = 0; host->mrq = mrq; - if (s3cmci_card_present(mmc) == 0) { + if (mmc_gpio_get_cd(mmc) == 0) { dbg(host, dbg_err, "%s: no medium present\n", __func__); host->mrq->cmd->error = -ENOMEDIUM; mmc_request_done(mmc, mrq); @@ -1242,22 +1234,24 @@ static void s3cmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) case MMC_POWER_ON: case MMC_POWER_UP: /* Configure GPE5...GPE10 pins in SD mode */ - s3c_gpio_cfgall_range(S3C2410_GPE(5), 6, S3C_GPIO_SFN(2), - S3C_GPIO_PULL_NONE); + if (!host->pdev->dev.of_node) + s3c_gpio_cfgall_range(S3C2410_GPE(5), 6, S3C_GPIO_SFN(2), + S3C_GPIO_PULL_NONE); if (host->pdata->set_power) host->pdata->set_power(ios->power_mode, ios->vdd); - if (!host->is2440) + if (!host->variant->s3c2440_compatible) mci_con |= S3C2410_SDICON_FIFORESET; break; case MMC_POWER_OFF: default: - gpio_direction_output(S3C2410_GPE(5), 0); + if (!host->pdev->dev.of_node) + gpio_direction_output(S3C2410_GPE(5), 0); - if (host->is2440) + if (host->variant->s3c2440_compatible) mci_con |= S3C2440_SDICON_SDRESET; if (host->pdata->set_power) @@ -1295,21 +1289,6 @@ static void s3cmci_reset(struct s3cmci_host *host) writel(con, host->base + S3C2410_SDICON); } -static int s3cmci_get_ro(struct mmc_host *mmc) -{ - struct s3cmci_host *host = mmc_priv(mmc); - struct s3c24xx_mci_pdata *pdata = host->pdata; - int ret; - - if (pdata->no_wprotect) - return 0; - - ret = gpio_get_value(pdata->gpio_wprotect) ? 1 : 0; - ret ^= pdata->wprotect_invert; - - return ret; -} - static void s3cmci_enable_sdio_irq(struct mmc_host *mmc, int enable) { struct s3cmci_host *host = mmc_priv(mmc); @@ -1353,8 +1332,8 @@ static void s3cmci_enable_sdio_irq(struct mmc_host *mmc, int enable) static struct mmc_host_ops s3cmci_ops = { .request = s3cmci_request, .set_ios = s3cmci_set_ios, - .get_ro = s3cmci_get_ro, - .get_cd = s3cmci_card_present, + .get_ro = mmc_gpio_get_ro, + .get_cd = mmc_gpio_get_cd, .enable_sdio_irq = s3cmci_enable_sdio_irq, }; @@ -1430,7 +1409,7 @@ static int s3cmci_state_show(struct seq_file *seq, void *v) seq_printf(seq, "Register base = 0x%08x\n", (u32)host->base); seq_printf(seq, "Clock rate = %ld\n", host->clk_rate); seq_printf(seq, "Prescale = %d\n", host->prescaler); - seq_printf(seq, "is2440 = %d\n", host->is2440); + seq_printf(seq, "S3C2440 compatible = %d\n", host->variant->s3c2440_compatible); seq_printf(seq, "IRQ = %d\n", host->irq); seq_printf(seq, "IRQ enabled = %d\n", host->irq_enabled); seq_printf(seq, "IRQ disabled = %d\n", host->irq_disabled); @@ -1545,21 +1524,15 @@ static inline void s3cmci_debugfs_remove(struct s3cmci_host *host) { } #endif /* CONFIG_DEBUG_FS */ -static int s3cmci_probe(struct platform_device *pdev) +static int s3cmci_probe_pdata(struct s3cmci_host *host) { - struct s3cmci_host *host; - struct mmc_host *mmc; - int ret; - int is2440; - int i; + struct platform_device *pdev = host->pdev; + struct mmc_host *mmc = host->mmc; + struct s3c24xx_mci_pdata *pdata; + int i, ret; - is2440 = platform_get_device_id(pdev)->driver_data; - - mmc = mmc_alloc_host(sizeof(struct s3cmci_host), &pdev->dev); - if (!mmc) { - ret = -ENOMEM; - goto probe_out; - } + host->variant = (const struct s3cmci_variant_data *) + platform_get_device_id(pdev)->driver_data; for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++) { ret = gpio_request(i, dev_name(&pdev->dev)); @@ -1569,25 +1542,103 @@ static int s3cmci_probe(struct platform_device *pdev) for (i--; i >= S3C2410_GPE(5); i--) gpio_free(i); - goto probe_free_host; + return ret; } } + if (!pdev->dev.platform_data) + pdev->dev.platform_data = &s3cmci_def_pdata; + + pdata = pdev->dev.platform_data; + + if (pdata->no_wprotect) + mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT; + + if (pdata->no_detect) + mmc->caps |= MMC_CAP_NEEDS_POLL; + + if (pdata->wprotect_invert); + mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH; + + if (pdata->detect_invert) + mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH; + + if (gpio_is_valid(pdata->gpio_detect)) { + ret = mmc_gpio_request_cd(mmc, pdata->gpio_detect, 0); + if (ret) { + dev_err(&pdev->dev, "error requesting GPIO for CD %d\n", + ret); + return ret; + } + } + + if (gpio_is_valid(pdata->gpio_wprotect)) { + ret = mmc_gpio_request_ro(mmc, pdata->gpio_wprotect); + if (ret) { + dev_err(&pdev->dev, "error requesting GPIO for WP %d\n", + ret); + return ret; + } + } + + return 0; +} + +static int s3cmci_probe_dt(struct s3cmci_host *host) +{ + struct platform_device *pdev = host->pdev; + struct s3c24xx_mci_pdata *pdata; + struct mmc_host *mmc = host->mmc; + int ret; + + host->variant = of_device_get_match_data(&pdev->dev); + if (!host->variant) + return -ENODEV; + + ret = mmc_of_parse(mmc); + if (ret) + return ret; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + pdev->dev.platform_data = pdata; + + return 0; +} + +static int s3cmci_probe(struct platform_device *pdev) +{ + struct s3cmci_host *host; + struct mmc_host *mmc; + int ret; + int i; + + mmc = mmc_alloc_host(sizeof(struct s3cmci_host), &pdev->dev); + if (!mmc) { + ret = -ENOMEM; + goto probe_out; + } + host = mmc_priv(mmc); host->mmc = mmc; host->pdev = pdev; - host->is2440 = is2440; + + if (pdev->dev.of_node) + ret = s3cmci_probe_dt(host); + else + ret = s3cmci_probe_pdata(host); + + if (ret) + goto probe_free_host; host->pdata = pdev->dev.platform_data; - if (!host->pdata) { - pdev->dev.platform_data = &s3cmci_def_pdata; - host->pdata = &s3cmci_def_pdata; - } spin_lock_init(&host->complete_lock); tasklet_init(&host->pio_tasklet, pio_tasklet, (unsigned long) host); - if (is2440) { + if (host->variant->s3c2440_compatible) { host->sdiimsk = S3C2440_SDIIMSK; host->sdidata = S3C2440_SDIDATA; host->clk_div = 1; @@ -1645,43 +1696,6 @@ static int s3cmci_probe(struct platform_device *pdev) disable_irq(host->irq); host->irq_state = false; - if (!host->pdata->no_detect) { - ret = gpio_request(host->pdata->gpio_detect, "s3cmci detect"); - if (ret) { - dev_err(&pdev->dev, "failed to get detect gpio\n"); - goto probe_free_irq; - } - - host->irq_cd = gpio_to_irq(host->pdata->gpio_detect); - - if (host->irq_cd >= 0) { - if (request_irq(host->irq_cd, s3cmci_irq_cd, - IRQF_TRIGGER_RISING | - IRQF_TRIGGER_FALLING, - DRIVER_NAME, host)) { - dev_err(&pdev->dev, - "can't get card detect irq.\n"); - ret = -ENOENT; - goto probe_free_gpio_cd; - } - } else { - dev_warn(&pdev->dev, - "host detect has no irq available\n"); - gpio_direction_input(host->pdata->gpio_detect); - } - } else - host->irq_cd = -1; - - if (!host->pdata->no_wprotect) { - ret = gpio_request(host->pdata->gpio_wprotect, "s3cmci wp"); - if (ret) { - dev_err(&pdev->dev, "failed to get writeprotect\n"); - goto probe_free_irq_cd; - } - - gpio_direction_input(host->pdata->gpio_wprotect); - } - /* Depending on the dma state, get a DMA channel to use. */ if (s3cmci_host_usedma(host)) { @@ -1689,7 +1703,7 @@ static int s3cmci_probe(struct platform_device *pdev) ret = PTR_ERR_OR_ZERO(host->dma); if (ret) { dev_err(&pdev->dev, "cannot get DMA channel.\n"); - goto probe_free_gpio_wp; + goto probe_free_irq; } } @@ -1731,7 +1745,7 @@ static int s3cmci_probe(struct platform_device *pdev) dbg(host, dbg_debug, "probe: mode:%s mapped mci_base:%p irq:%u irq_cd:%u dma:%p.\n", - (host->is2440?"2440":""), + (host->variant->s3c2440_compatible?"2440":""), host->base, host->irq, host->irq_cd, host->dma); ret = s3cmci_cpufreq_register(host); @@ -1768,18 +1782,6 @@ static int s3cmci_probe(struct platform_device *pdev) if (s3cmci_host_usedma(host)) dma_release_channel(host->dma); - probe_free_gpio_wp: - if (!host->pdata->no_wprotect) - gpio_free(host->pdata->gpio_wprotect); - - probe_free_gpio_cd: - if (!host->pdata->no_detect) - gpio_free(host->pdata->gpio_detect); - - probe_free_irq_cd: - if (host->irq_cd >= 0) - free_irq(host->irq_cd, host); - probe_free_irq: free_irq(host->irq, host); @@ -1790,8 +1792,9 @@ static int s3cmci_probe(struct platform_device *pdev) release_mem_region(host->mem->start, resource_size(host->mem)); probe_free_gpio: - for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++) - gpio_free(i); + if (!pdev->dev.of_node) + for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++) + gpio_free(i); probe_free_host: mmc_free_host(mmc); @@ -1818,7 +1821,6 @@ static int s3cmci_remove(struct platform_device *pdev) { struct mmc_host *mmc = platform_get_drvdata(pdev); struct s3cmci_host *host = mmc_priv(mmc); - struct s3c24xx_mci_pdata *pd = host->pdata; int i; s3cmci_shutdown(pdev); @@ -1832,15 +1834,9 @@ static int s3cmci_remove(struct platform_device *pdev) free_irq(host->irq, host); - if (!pd->no_wprotect) - gpio_free(pd->gpio_wprotect); - - if (!pd->no_detect) - gpio_free(pd->gpio_detect); - - for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++) - gpio_free(i); - + if (!pdev->dev.of_node) + for (i = S3C2410_GPE(5); i <= S3C2410_GPE(10); i++) + gpio_free(i); iounmap(host->base); release_mem_region(host->mem->start, resource_size(host->mem)); @@ -1849,16 +1845,33 @@ static int s3cmci_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id s3cmci_dt_match[] = { + { + .compatible = "samsung,s3c2410-sdi", + .data = &s3c2410_s3cmci_variant_data, + }, + { + .compatible = "samsung,s3c2412-sdi", + .data = &s3c2412_s3cmci_variant_data, + }, + { + .compatible = "samsung,s3c2440-sdi", + .data = &s3c2440_s3cmci_variant_data, + }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, sdhci_s3c_dt_match); + static const struct platform_device_id s3cmci_driver_ids[] = { { .name = "s3c2410-sdi", - .driver_data = 0, + .driver_data = (kernel_ulong_t) &s3c2410_s3cmci_variant_data, }, { .name = "s3c2412-sdi", - .driver_data = 1, + .driver_data = (kernel_ulong_t) &s3c2412_s3cmci_variant_data, }, { .name = "s3c2440-sdi", - .driver_data = 1, + .driver_data = (kernel_ulong_t) &s3c2440_s3cmci_variant_data, }, { } }; @@ -1868,6 +1881,7 @@ static int s3cmci_remove(struct platform_device *pdev) static struct platform_driver s3cmci_driver = { .driver = { .name = "s3c-sdi", + .of_match_table = s3cmci_dt_match, }, .id_table = s3cmci_driver_ids, .probe = s3cmci_probe, diff --git a/drivers/mmc/host/s3cmci.h b/drivers/mmc/host/s3cmci.h index 30c2c0dd1bc8..e9fe48915a2e 100644 --- a/drivers/mmc/host/s3cmci.h +++ b/drivers/mmc/host/s3cmci.h @@ -33,7 +33,8 @@ struct s3cmci_host { unsigned long real_rate; u8 prescaler; - int is2440; + const struct s3cmci_variant_data *variant; + unsigned sdiimsk; unsigned sdidata;