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2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/drivers/mmc/host/sdhci_f_sdh30.c
..
..
@@ -1,13 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * linux/drivers/mmc/host/sdhci_f_sdh30.c
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  *
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  * Copyright (C) 2013 - 2015 Fujitsu Semiconductor, Ltd
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  *              Vincent Yang <vincent.yang@tw.fujitsu.com>
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  * Copyright (C) 2015 Linaro Ltd  Andy Green <andy.green@linaro.org>
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- *
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- * This program is free software: you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation, version 2 of the License.
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  */
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9
 
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 #include <linux/acpi.h>
..
..
@@ -19,31 +16,7 @@
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 #include <linux/clk.h>
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17
 
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 #include "sdhci-pltfm.h"
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-
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-/* F_SDH30 extended Controller registers */
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-#define F_SDH30_AHB_CONFIG		0x100
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-#define  F_SDH30_AHB_BIGED		0x00000040
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-#define  F_SDH30_BUSLOCK_DMA		0x00000020
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-#define  F_SDH30_BUSLOCK_EN		0x00000010
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-#define  F_SDH30_SIN			0x00000008
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-#define  F_SDH30_AHB_INCR_16		0x00000004
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-#define  F_SDH30_AHB_INCR_8		0x00000002
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-#define  F_SDH30_AHB_INCR_4		0x00000001
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-
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-#define F_SDH30_TUNING_SETTING		0x108
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-#define  F_SDH30_CMD_CHK_DIS		0x00010000
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-
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-#define F_SDH30_IO_CONTROL2		0x114
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-#define  F_SDH30_CRES_O_DN		0x00080000
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-#define  F_SDH30_MSEL_O_1_8		0x00040000
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-
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-#define F_SDH30_ESD_CONTROL		0x124
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-#define  F_SDH30_EMMC_RST		0x00000002
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-#define  F_SDH30_EMMC_HS200		0x01000000
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-
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-#define F_SDH30_CMD_DAT_DELAY		0x200
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-
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-#define F_SDH30_MIN_CLOCK		400000
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+#include "sdhci_f_sdh30.h"
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20
 
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 struct f_sdhost_priv {
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 	struct clk *clk_iface;
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..
@@ -53,9 +26,16 @@
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 	bool enable_cmd_dat_delay;
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 };
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28
 
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+static void *sdhci_f_sdhost_priv(struct sdhci_host *host)
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+{
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+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
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+
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+	return sdhci_pltfm_priv(pltfm_host);
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+}
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+
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 static void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host)
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 {
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-	struct f_sdhost_priv *priv = sdhci_priv(host);
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+	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
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 	u32 ctrl = 0;
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40
 
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 	usleep_range(2500, 3000);
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@@ -88,7 +68,7 @@
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68
 
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 static void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask)
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 {
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-	struct f_sdhost_priv *priv = sdhci_priv(host);
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+	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
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 	u32 ctl;
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73
 
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 	if (sdhci_readw(host, SDHCI_CLOCK_CONTROL) == 0)
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@@ -112,32 +92,31 @@
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 	.set_uhs_signaling = sdhci_set_uhs_signaling,
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 };
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94
 
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+static const struct sdhci_pltfm_data sdhci_f_sdh30_pltfm_data = {
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+	.ops = &sdhci_f_sdh30_ops,
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+	.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
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+		| SDHCI_QUIRK_INVERTED_WRITE_PROTECT,
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+	.quirks2 = SDHCI_QUIRK2_SUPPORT_SINGLE
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+		|  SDHCI_QUIRK2_TUNING_WORK_AROUND,
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+};
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+
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 static int sdhci_f_sdh30_probe(struct platform_device *pdev)
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 {
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 	struct sdhci_host *host;
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 	struct device *dev = &pdev->dev;
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-	struct resource *res;
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-	int irq, ctrl = 0, ret = 0;
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+	int ctrl = 0, ret = 0;
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 	struct f_sdhost_priv *priv;
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+	struct sdhci_pltfm_host *pltfm_host;
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 	u32 reg = 0;
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-	irq = platform_get_irq(pdev, 0);
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-	if (irq < 0) {
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-		dev_err(dev, "%s: no irq specified\n", __func__);
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-		return irq;
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-	}
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-
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-	host = sdhci_alloc_host(dev, sizeof(struct f_sdhost_priv));
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+	host = sdhci_pltfm_init(pdev, &sdhci_f_sdh30_pltfm_data,
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+				sizeof(struct f_sdhost_priv));
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 	if (IS_ERR(host))
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 		return PTR_ERR(host);
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-	priv = sdhci_priv(host);
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+	pltfm_host = sdhci_priv(host);
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+	priv = sdhci_pltfm_priv(pltfm_host);
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 	priv->dev = dev;
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-
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-	host->quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
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-		       SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
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-	host->quirks2 = SDHCI_QUIRK2_SUPPORT_SINGLE |
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-			SDHCI_QUIRK2_TUNING_WORK_AROUND;
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 	priv->enable_cmd_dat_delay = device_property_read_bool(dev,
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 						"fujitsu,cmd-dat-delay-select");
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@@ -145,19 +124,6 @@
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 	ret = mmc_of_parse(host->mmc);
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 	if (ret)
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 		goto err;
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-
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-	platform_set_drvdata(pdev, host);
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-
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-	host->hw_name = "f_sdh30";
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-	host->ops = &sdhci_f_sdh30_ops;
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-	host->irq = irq;
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-
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	host->ioaddr = devm_ioremap_resource(&pdev->dev, res);
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-	if (IS_ERR(host->ioaddr)) {
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-		ret = PTR_ERR(host->ioaddr);
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-		goto err;
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-	}
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127
 
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 	if (dev_of_node(dev)) {
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 		sdhci_get_of_property(pdev);
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@@ -199,6 +165,9 @@
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 	if (reg & SDHCI_CAN_DO_8BIT)
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 		priv->vendor_hs200 = F_SDH30_EMMC_HS200;
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+	if (!(reg & SDHCI_TIMEOUT_CLK_MASK))
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+		host->quirks |= SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK;
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+
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 	ret = sdhci_add_host(host);
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 	if (ret)
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 		goto err_add_host;
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@@ -210,23 +179,22 @@
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 err_clk:
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 	clk_disable_unprepare(priv->clk_iface);
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 err:
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-	sdhci_free_host(host);
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+	sdhci_pltfm_free(pdev);
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+
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 	return ret;
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 }
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 static int sdhci_f_sdh30_remove(struct platform_device *pdev)
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 {
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 	struct sdhci_host *host = platform_get_drvdata(pdev);
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-	struct f_sdhost_priv *priv = sdhci_priv(host);
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+	struct f_sdhost_priv *priv = sdhci_f_sdhost_priv(host);
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+	struct clk *clk_iface = priv->clk_iface;
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+	struct clk *clk = priv->clk;
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-	sdhci_remove_host(host, readl(host->ioaddr + SDHCI_INT_STATUS) ==
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-			  0xffffffff);
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+	sdhci_pltfm_unregister(pdev);
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-	clk_disable_unprepare(priv->clk_iface);
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-	clk_disable_unprepare(priv->clk);
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-
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-	sdhci_free_host(host);
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-	platform_set_drvdata(pdev, NULL);
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+	clk_disable_unprepare(clk_iface);
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+	clk_disable_unprepare(clk);
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 	return 0;
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 }