[PATCH v2 0/9] unshare and simplify omap_hsmmc platform struct

[PATCH v2 0/9] unshare and simplify omap_hsmmc platform struct

[Andreas Fenkart]

v2:
- replace erroneous mmci by omap1/2
- add description to all patches
- full compile check with:
	CONFIG_MACH_OMAP3_BEAGLE=y
	CONFIG_MACH_DEVKIT8000=y
	CONFIG_MACH_OMAP_LDP=y
	CONFIG_MACH_OMAP3530_LV_SOM=y
	CONFIG_MACH_OMAP3_TORPEDO=y
	CONFIG_MACH_OVERO=y
	CONFIG_MACH_OMAP3517EVM=y
	CONFIG_MACH_CRANEBOARD=y
	CONFIG_MACH_OMAP3_PANDORA=y
	CONFIG_MACH_TOUCHBOOK=y
	CONFIG_MACH_OMAP_3430SDP=y
	CONFIG_MACH_NOKIA_RX51=y
	CONFIG_MACH_CM_T35=y
	CONFIG_MACH_CM_T3517=y
	CONFIG_MACH_CM_T3730=y
	CONFIG_MACH_SBC3530=y
- reorganized and added more patches, hence no blank ack added


Andreas Fenkart (9):
  omap_hsmmc: use separate platform data for ompa3 and omap 1/2 driver
  omap_hsmmc: remove unused fields in platform_data
  omap_hsmmc: remove un-initialized callbacks from platform data
  omap_hsmmc: remove un-ready power_saving field in omap2_hsmmc_info
  omap_hsmmc: remove unused get_context_loss_count callback
  omap_hsmmc: remove unnecessary omap_hsmmc_slot_data indirection
  omap_hsmmc: pass mmc_priv struct to gpio init / free
  omap_hsmmc: Remove unnecessary callbacks from platform data
  omap_hsmmc: remove unused slot_id parameter

 arch/arm/mach-omap2/board-rx51-peripherals.c       |   4 +-
 arch/arm/mach-omap2/hsmmc.c                        | 155 +++++------
 arch/arm/mach-omap2/hsmmc.h                        |   9 +-
 arch/arm/mach-omap2/mmc.h                          |   6 +-
 .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c |   6 +-
 arch/arm/mach-omap2/omap_hwmod_3xxx_data.c         |   6 +-
 drivers/mmc/host/omap_hsmmc.c                      | 282 ++++++++++-----------
 include/linux/platform_data/hsmmc-omap.h           |  88 +++++++
 8 files changed, 299 insertions(+), 257 deletions(-)
 create mode 100644 include/linux/platform_data/hsmmc-omap.h

-- 
2.1.0

[PATCH v2 1/9] omap_hsmmc: use separate platform data for ompa3 and omap 1/2 driver

[Andreas Fenkart]

- mmci driver supports multiple slots, omap_hsmmc only one
this leads to one of the major confusions in the omap_hsmmc driver

- platform data should be read-only for the driver
most callbacks are not set by the omap3 platform init code while being
required by the driver, leading to the fact that they are set by the
driver during it's probe function
typical example are card detect / read only detect callbacks

un-bundling by searching for driver name \"omap_hsmmc in the
arch/arm folder. omap_hsmmc_platform_data is not initialized directly,
but from omap2_hsmmc_info, which is defined in a separate header file
not touched by this patch

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 07d4c7b..e3555f2 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -47,7 +47,7 @@ static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
 				  int power_on, int vdd)
 {
 	u32 reg, prog_io;
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
+	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
 	if (mmc->slots[0].remux)
 		mmc->slots[0].remux(dev, slot, power_on);
@@ -120,7 +120,7 @@ static void omap_hsmmc1_after_set_reg(struct device *dev, int slot,
 	}
 }
 
-static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
+static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
 {
 	u32 reg;
 
@@ -135,7 +135,7 @@ static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
 static void hsmmc2_before_set_reg(struct device *dev, int slot,
 				   int power_on, int vdd)
 {
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
+	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
 	if (mmc->slots[0].remux)
 		mmc->slots[0].remux(dev, slot, power_on);
@@ -147,7 +147,7 @@ static void hsmmc2_before_set_reg(struct device *dev, int slot,
 static int am35x_hsmmc2_set_power(struct device *dev, int slot,
 				  int power_on, int vdd)
 {
-	struct omap_mmc_platform_data *mmc = dev->platform_data;
+	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
 	if (power_on)
 		hsmmc2_select_input_clk_src(mmc);
@@ -161,8 +161,8 @@ static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
 	return 0;
 }
 
-static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
-			int controller_nr)
+static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
+				  *mmc_controller, int controller_nr)
 {
 	if (gpio_is_valid(mmc_controller->slots[0].switch_pin) &&
 		(mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
@@ -243,7 +243,7 @@ static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
 }
 
 static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
-					struct omap_mmc_platform_data *mmc)
+					struct omap_hsmmc_platform_data *mmc)
 {
 	char *hc_name;
 
@@ -368,7 +368,7 @@ static int omap_hsmmc_done;
 void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 {
 	struct platform_device *pdev;
-	struct omap_mmc_platform_data *mmc_pdata;
+	struct omap_hsmmc_platform_data *mmc_pdata;
 	int res;
 
 	if (omap_hsmmc_done != 1)
@@ -408,12 +408,12 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
 	struct omap_device *od;
 	struct platform_device *pdev;
 	char oh_name[MAX_OMAP_MMC_HWMOD_NAME_LEN];
-	struct omap_mmc_platform_data *mmc_data;
-	struct omap_mmc_dev_attr *mmc_dev_attr;
+	struct omap_hsmmc_platform_data *mmc_data;
+	struct omap_hsmmc_dev_attr *mmc_dev_attr;
 	char *name;
 	int res;
 
-	mmc_data = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL);
+	mmc_data = kzalloc(sizeof(*mmc_data), GFP_KERNEL);
 	if (!mmc_data) {
 		pr_err("Cannot allocate memory for mmc device!\n");
 		return;
@@ -463,7 +463,7 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
 	}
 
 	res = platform_device_add_data(pdev, mmc_data,
-			      sizeof(struct omap_mmc_platform_data));
+			      sizeof(struct omap_hsmmc_platform_data));
 	if (res) {
 		pr_err("Could not add pdata for %s\n", name);
 		goto put_pdev;
diff --git a/arch/arm/mach-omap2/mmc.h b/arch/arm/mach-omap2/mmc.h
index 0cd4b08..db28c14 100644
--- a/arch/arm/mach-omap2/mmc.h
+++ b/arch/arm/mach-omap2/mmc.h
@@ -1,5 +1,5 @@
 #include <linux/mmc/host.h>
-#include <linux/platform_data/mmc-omap.h>
+#include <linux/platform_data/hsmmc-omap.h>
 
 #define OMAP24XX_NR_MMC		2
 #define OMAP2420_MMC_SIZE	OMAP1_MMC_SIZE
@@ -8,9 +8,9 @@
 #define OMAP4_MMC_REG_OFFSET	0x100
 
 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
-void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data);
+void omap242x_init_mmc(struct omap_hsmmc_platform_data **mmc_data);
 #else
-static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
+static inline void omap242x_init_mmc(struct omap_hsmmc_platform_data **mmc_data)
 {
 }
 #endif
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
index a579b89..7a85958 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
@@ -836,7 +836,7 @@ static struct omap_hwmod_class am33xx_mmc_hwmod_class = {
 };
 
 /* mmc0 */
-static struct omap_mmc_dev_attr am33xx_mmc0_dev_attr = {
+static struct omap_hsmmc_dev_attr am33xx_mmc0_dev_attr = {
 	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
 };
 
@@ -854,7 +854,7 @@ struct omap_hwmod am33xx_mmc0_hwmod = {
 };
 
 /* mmc1 */
-static struct omap_mmc_dev_attr am33xx_mmc1_dev_attr = {
+static struct omap_hsmmc_dev_attr am33xx_mmc1_dev_attr = {
 	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
 };
 
@@ -872,7 +872,7 @@ struct omap_hwmod am33xx_mmc1_hwmod = {
 };
 
 /* mmc2 */
-static struct omap_mmc_dev_attr am33xx_mmc2_dev_attr = {
+static struct omap_hsmmc_dev_attr am33xx_mmc2_dev_attr = {
 	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
 };
 struct omap_hwmod am33xx_mmc2_hwmod = {
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 1cd0cfd..20a2b88 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -1786,12 +1786,12 @@ static struct omap_hwmod_opt_clk omap34xx_mmc1_opt_clks[] = {
 	{ .role = "dbck", .clk = "omap_32k_fck", },
 };
 
-static struct omap_mmc_dev_attr mmc1_dev_attr = {
+static struct omap_hsmmc_dev_attr mmc1_dev_attr = {
 	.flags = OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
 };
 
 /* See 35xx errata 2.1.1.128 in SPRZ278F */
-static struct omap_mmc_dev_attr mmc1_pre_es3_dev_attr = {
+static struct omap_hsmmc_dev_attr mmc1_pre_es3_dev_attr = {
 	.flags = (OMAP_HSMMC_SUPPORTS_DUAL_VOLT |
 		  OMAP_HSMMC_BROKEN_MULTIBLOCK_READ),
 };
@@ -1854,7 +1854,7 @@ static struct omap_hwmod_opt_clk omap34xx_mmc2_opt_clks[] = {
 };
 
 /* See 35xx errata 2.1.1.128 in SPRZ278F */
-static struct omap_mmc_dev_attr mmc2_pre_es3_dev_attr = {
+static struct omap_hsmmc_dev_attr mmc2_pre_es3_dev_attr = {
 	.flags = OMAP_HSMMC_BROKEN_MULTIBLOCK_READ,
 };
 
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 35ac2e4..5f2b5b7 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -42,7 +42,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/pm_runtime.h>
-#include <linux/platform_data/mmc-omap.h>
+#include <linux/platform_data/hsmmc-omap.h>
 
 /* OMAP HSMMC Host Controller Registers */
 #define OMAP_HSMMC_SYSSTATUS	0x0014
@@ -220,7 +220,7 @@ struct omap_hsmmc_host {
 #define HSMMC_SDIO_IRQ_ENABLED	(1 << 1)        /* SDIO irq enabled */
 #define HSMMC_WAKE_IRQ_ENABLED	(1 << 2)
 	struct omap_hsmmc_next	next_data;
-	struct	omap_mmc_platform_data	*pdata;
+	struct	omap_hsmmc_platform_data	*pdata;
 };
 
 struct omap_mmc_of_data {
@@ -233,7 +233,7 @@ static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host);
 static int omap_hsmmc_card_detect(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_mmc_platform_data *mmc = host->pdata;
+	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	/* NOTE: assumes card detect signal is active-low */
 	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
@@ -242,7 +242,7 @@ static int omap_hsmmc_card_detect(struct device *dev, int slot)
 static int omap_hsmmc_get_wp(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_mmc_platform_data *mmc = host->pdata;
+	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	/* NOTE: assumes write protect signal is active-high */
 	return gpio_get_value_cansleep(mmc->slots[0].gpio_wp);
@@ -251,7 +251,7 @@ static int omap_hsmmc_get_wp(struct device *dev, int slot)
 static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_mmc_platform_data *mmc = host->pdata;
+	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	/* NOTE: assumes card detect signal is active-low */
 	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
@@ -262,7 +262,7 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_mmc_platform_data *mmc = host->pdata;
+	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	disable_irq(mmc->slots[0].card_detect_irq);
 	return 0;
@@ -271,7 +271,7 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_mmc_platform_data *mmc = host->pdata;
+	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	enable_irq(mmc->slots[0].card_detect_irq);
 	return 0;
@@ -449,7 +449,7 @@ static inline int omap_hsmmc_have_reg(void)
 
 #endif
 
-static int omap_hsmmc_gpio_init(struct omap_mmc_platform_data *pdata)
+static int omap_hsmmc_gpio_init(struct omap_hsmmc_platform_data *pdata)
 {
 	int ret;
 
@@ -492,7 +492,7 @@ err_free_sp:
 	return ret;
 }
 
-static void omap_hsmmc_gpio_free(struct omap_mmc_platform_data *pdata)
+static void omap_hsmmc_gpio_free(struct omap_hsmmc_platform_data *pdata)
 {
 	if (gpio_is_valid(pdata->slots[0].gpio_wp))
 		gpio_free(pdata->slots[0].gpio_wp);
@@ -1286,7 +1286,7 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
 {
 	struct omap_hsmmc_host *host = dev_id;
-	struct omap_mmc_slot_data *slot = &mmc_slot(host);
+	struct omap_hsmmc_slot_data *slot = &mmc_slot(host);
 	int carddetect;
 
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
@@ -1947,9 +1947,9 @@ static const struct of_device_id omap_mmc_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, omap_mmc_of_match);
 
-static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
+static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 {
-	struct omap_mmc_platform_data *pdata;
+	struct omap_hsmmc_platform_data *pdata;
 	struct device_node *np = dev->of_node;
 	u32 bus_width, max_freq;
 	int cd_gpio, wp_gpio;
@@ -1999,7 +1999,7 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 	return pdata;
 }
 #else
-static inline struct omap_mmc_platform_data
+static inline struct omap_hsmmc_platform_data
 			*of_get_hsmmc_pdata(struct device *dev)
 {
 	return ERR_PTR(-EINVAL);
@@ -2008,7 +2008,7 @@ static inline struct omap_mmc_platform_data
 
 static int omap_hsmmc_probe(struct platform_device *pdev)
 {
-	struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
+	struct omap_hsmmc_platform_data *pdata = pdev->dev.platform_data;
 	struct mmc_host *mmc;
 	struct omap_hsmmc_host *host = NULL;
 	struct resource *res;
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
new file mode 100644
index 0000000..cb91db4
--- /dev/null
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -0,0 +1,152 @@
+/*
+ * MMC definitions for OMAP2
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define OMAP_MMC_MAX_SLOTS	1
+
+/*
+ * struct omap_hsmmc_dev_attr.flags possibilities
+ *
+ * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
+ *    operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
+ *    should be set if this is the case.  See for example Section 22.5.3
+ *    "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
+ *    Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
+ *
+ * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
+ *    don't work correctly on some MMC controller instances on some
+ *    OMAP3 SoCs; this flag should be set if this is the case.  See
+ *    for example Advisory 2.1.1.128 "MMC: Multiple Block Read
+ *    Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
+ *    Revision F (October 2010) (SPRZ278F).
+ */
+#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT		BIT(0)
+#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ	BIT(1)
+#define OMAP_HSMMC_SWAKEUP_MISSING		BIT(2)
+
+struct mmc_card;
+
+struct omap_hsmmc_dev_attr {
+	u8 flags;
+};
+
+struct omap_hsmmc_platform_data {
+	/* back-link to device */
+	struct device *dev;
+
+	/* number of slots per controller */
+	unsigned nr_slots:2;
+
+	/* set if your board has components or wiring that limits the
+	 * maximum frequency on the MMC bus */
+	unsigned int max_freq;
+
+	/* switch the bus to a new slot */
+	int (*switch_slot)(struct device *dev, int slot);
+	/* initialize board-specific MMC functionality, can be NULL if
+	 * not supported */
+	int (*init)(struct device *dev);
+	void (*cleanup)(struct device *dev);
+	void (*shutdown)(struct device *dev);
+
+	/* To handle board related suspend/resume functionality for MMC */
+	int (*suspend)(struct device *dev, int slot);
+	int (*resume)(struct device *dev, int slot);
+
+	/* Return context loss count due to PM states changing */
+	int (*get_context_loss_count)(struct device *dev);
+
+	/* Integrating attributes from the omap_hwmod layer */
+	u8 controller_flags;
+
+	/* Register offset deviation */
+	u16 reg_offset;
+
+	struct omap_hsmmc_slot_data {
+		/*
+		 * 4/8 wires and any additional host capabilities
+		 * need to OR'd all capabilities (ref. linux/mmc/host.h)
+		 */
+		u8  wires;	/* Used for the MMC driver on omap1 and 2420 */
+		u32 caps;	/* Used for the MMC driver on 2430 and later */
+		u32 pm_caps;	/* PM capabilities of the mmc */
+
+		/*
+		 * nomux means "standard" muxing is wrong on this board, and
+		 * that board-specific code handled it before common init logic.
+		 */
+		unsigned nomux:1;
+
+		/* switch pin can be for card detect (default) or card cover */
+		unsigned cover:1;
+
+		/* use the internal clock */
+		unsigned internal_clock:1;
+
+		/* nonremovable e.g. eMMC */
+		unsigned nonremovable:1;
+
+		/* Try to sleep or power off when possible */
+		unsigned power_saving:1;
+
+		/* If using power_saving and the MMC power is not to go off */
+		unsigned no_off:1;
+
+		/* eMMC does not handle power off when not in sleep state */
+		unsigned no_regulator_off_init:1;
+
+		/* Regulator off remapped to sleep */
+		unsigned vcc_aux_disable_is_sleep:1;
+
+		/* we can put the features above into this variable */
+#define HSMMC_HAS_PBIAS		(1 << 0)
+#define HSMMC_HAS_UPDATED_RESET	(1 << 1)
+#define HSMMC_HAS_HSPE_SUPPORT	(1 << 2)
+#define MMC_OMAP7XX		(1 << 3)
+#define MMC_OMAP15XX		(1 << 4)
+#define MMC_OMAP16XX		(1 << 5)
+		unsigned features;
+
+		int switch_pin;			/* gpio (card detect) */
+		int gpio_wp;			/* gpio (write protect) */
+
+		int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
+		int (*set_power)(struct device *dev, int slot,
+				 int power_on, int vdd);
+		int (*get_ro)(struct device *dev, int slot);
+		void (*remux)(struct device *dev, int slot, int power_on);
+		/* Call back before enabling / disabling regulators */
+		void (*before_set_reg)(struct device *dev, int slot,
+				       int power_on, int vdd);
+		/* Call back after enabling / disabling regulators */
+		void (*after_set_reg)(struct device *dev, int slot,
+				      int power_on, int vdd);
+		/* if we have special card, init it using this callback */
+		void (*init_card)(struct mmc_card *card);
+
+		/* return MMC cover switch state, can be NULL if not supported.
+		 *
+		 * possible return values:
+		 *   0 - closed
+		 *   1 - open
+		 */
+		int (*get_cover_state)(struct device *dev, int slot);
+
+		const char *name;
+		u32 ocr_mask;
+
+		/* Card detection IRQs */
+		int card_detect_irq;
+
+		int (*card_detect)(struct device *dev, int slot);
+
+		unsigned int ban_openended:1;
+
+	} slots[OMAP_MMC_MAX_SLOTS];
+};
-- 
2.1.0

[PATCH v2 2/9] omap_hsmmc: remove unused fields in platform_data

[Andreas Fenkart]

platform data is built from omap2_hsmmc_info, remove all fields that
are never set in omap_hsmmc_info, hence never copied to platform data.
Note that the omap_hsmmc driver never used any of these fields, they were
completely unused

compile tested for these platforms
CONFIG_MACH_OMAP3_BEAGLE=y
CONFIG_MACH_DEVKIT8000=y
CONFIG_MACH_OMAP_LDP=y
CONFIG_MACH_OMAP3530_LV_SOM=y
CONFIG_MACH_OMAP3_TORPEDO=y
CONFIG_MACH_OVERO=y
CONFIG_MACH_OMAP3517EVM=y
CONFIG_MACH_CRANEBOARD=y
CONFIG_MACH_OMAP3_PANDORA=y
CONFIG_MACH_TOUCHBOOK=y
CONFIG_MACH_OMAP_3430SDP=y
CONFIG_MACH_NOKIA_RX51=y
CONFIG_MACH_CM_T35=y
CONFIG_MACH_CM_T3517=y
CONFIG_MACH_CM_T3730=y
CONFIG_MACH_SBC3530=y

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index e3555f2..1c10402 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -262,9 +262,7 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	mmc->slots[0].name = hc_name;
 	mmc->nr_slots = 1;
 	mmc->slots[0].caps = c->caps;
-	mmc->slots[0].pm_caps = c->pm_caps;
 	mmc->slots[0].internal_clock = !c->ext_clock;
-	mmc->max_freq = c->max_freq;
 	mmc->reg_offset = 0;
 	mmc->get_context_loss_count = hsmmc_get_context_loss;
 
@@ -280,18 +278,6 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	if (c->nonremovable)
 		mmc->slots[0].nonremovable = 1;
 
-	if (c->power_saving)
-		mmc->slots[0].power_saving = 1;
-
-	if (c->no_off)
-		mmc->slots[0].no_off = 1;
-
-	if (c->no_off_init)
-		mmc->slots[0].no_regulator_off_init = c->no_off_init;
-
-	if (c->vcc_aux_disable_is_sleep)
-		mmc->slots[0].vcc_aux_disable_is_sleep = 1;
-
 	/*
 	 * NOTE:  MMC slots should have a Vcc regulator set up.
 	 * This may be from a TWL4030-family chip, another
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 7f2e790..bdc8870 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -12,23 +12,17 @@ struct omap2_hsmmc_info {
 	u8	mmc;		/* controller 1/2/3 */
 	u32	caps;		/* 4/8 wires and any additional host
 				 * capabilities OR'd (ref. linux/mmc/host.h) */
-	u32	pm_caps;	/* PM capabilities */
 	bool	transceiver;	/* MMC-2 option */
 	bool	ext_clock;	/* use external pin for input clock */
 	bool	cover_only;	/* No card detect - just cover switch */
 	bool	nonremovable;	/* Nonremovable e.g. eMMC */
 	bool	power_saving;	/* Try to sleep or power off when possible */
-	bool	no_off;		/* power_saving and power is not to go off */
-	bool	no_off_init;	/* no power off when not in MMC sleep state */
-	bool	vcc_aux_disable_is_sleep; /* Regulator off remapped to sleep */
 	bool	deferred;	/* mmc needs a deferred probe */
 	int	gpio_cd;	/* or -EINVAL */
 	int	gpio_wp;	/* or -EINVAL */
 	char	*name;		/* or NULL for default */
 	struct platform_device *pdev;	/* mmc controller instance */
 	int	ocr_mask;	/* temporary HACK */
-	int	max_freq;	/* maximum clock, if constrained by external
-				 * circuitry, or 0 for default */
 	/* Remux (pad configuration) when powering on/off */
 	void (*remux)(struct device *dev, int slot, int power_on);
 	/* init some special card */
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index cb91db4..026efb6 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -30,8 +30,6 @@
 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ	BIT(1)
 #define OMAP_HSMMC_SWAKEUP_MISSING		BIT(2)
 
-struct mmc_card;
-
 struct omap_hsmmc_dev_attr {
 	u8 flags;
 };
@@ -73,16 +71,9 @@ struct omap_hsmmc_platform_data {
 		 * 4/8 wires and any additional host capabilities
 		 * need to OR'd all capabilities (ref. linux/mmc/host.h)
 		 */
-		u8  wires;	/* Used for the MMC driver on omap1 and 2420 */
 		u32 caps;	/* Used for the MMC driver on 2430 and later */
 		u32 pm_caps;	/* PM capabilities of the mmc */
 
-		/*
-		 * nomux means "standard" muxing is wrong on this board, and
-		 * that board-specific code handled it before common init logic.
-		 */
-		unsigned nomux:1;
-
 		/* switch pin can be for card detect (default) or card cover */
 		unsigned cover:1;
 
@@ -92,25 +83,13 @@ struct omap_hsmmc_platform_data {
 		/* nonremovable e.g. eMMC */
 		unsigned nonremovable:1;
 
-		/* Try to sleep or power off when possible */
-		unsigned power_saving:1;
-
-		/* If using power_saving and the MMC power is not to go off */
-		unsigned no_off:1;
-
 		/* eMMC does not handle power off when not in sleep state */
 		unsigned no_regulator_off_init:1;
 
-		/* Regulator off remapped to sleep */
-		unsigned vcc_aux_disable_is_sleep:1;
-
 		/* we can put the features above into this variable */
 #define HSMMC_HAS_PBIAS		(1 << 0)
 #define HSMMC_HAS_UPDATED_RESET	(1 << 1)
 #define HSMMC_HAS_HSPE_SUPPORT	(1 << 2)
-#define MMC_OMAP7XX		(1 << 3)
-#define MMC_OMAP15XX		(1 << 4)
-#define MMC_OMAP16XX		(1 << 5)
 		unsigned features;
 
 		int switch_pin;			/* gpio (card detect) */
@@ -145,8 +124,5 @@ struct omap_hsmmc_platform_data {
 		int card_detect_irq;
 
 		int (*card_detect)(struct device *dev, int slot);
-
-		unsigned int ban_openended:1;
-
 	} slots[OMAP_MMC_MAX_SLOTS];
 };
-- 
2.1.0

[PATCH v2 3/9] omap_hsmmc: remove un-initialized callbacks from platform data

[Andreas Fenkart]

these callbacks are not set, probably legacy omap 1/2 features

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 5f2b5b7..f68ac1a 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2204,18 +2204,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	if (pdata->init != NULL) {
-		if (pdata->init(&pdev->dev) != 0) {
-			dev_err(mmc_dev(host->mmc),
-				"Unable to configure MMC IRQs\n");
-			goto err_irq;
-		}
-	}
-
 	if (omap_hsmmc_have_reg() && !mmc_slot(host).set_power) {
 		ret = omap_hsmmc_reg_get(host);
 		if (ret)
-			goto err_reg;
+			goto err_irq;
 		host->use_reg = 1;
 	}
 
@@ -2278,9 +2270,6 @@ err_slot_name:
 err_irq_cd:
 	if (host->use_reg)
 		omap_hsmmc_reg_put(host);
-err_reg:
-	if (host->pdata->cleanup)
-		host->pdata->cleanup(&pdev->dev);
 err_irq:
 	if (host->tx_chan)
 		dma_release_channel(host->tx_chan);
@@ -2306,8 +2295,6 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 	mmc_remove_host(host->mmc);
 	if (host->use_reg)
 		omap_hsmmc_reg_put(host);
-	if (host->pdata->cleanup)
-		host->pdata->cleanup(&pdev->dev);
 
 	if (host->tx_chan)
 		dma_release_channel(host->tx_chan);
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 026efb6..2807786 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -45,14 +45,6 @@ struct omap_hsmmc_platform_data {
 	 * maximum frequency on the MMC bus */
 	unsigned int max_freq;
 
-	/* switch the bus to a new slot */
-	int (*switch_slot)(struct device *dev, int slot);
-	/* initialize board-specific MMC functionality, can be NULL if
-	 * not supported */
-	int (*init)(struct device *dev);
-	void (*cleanup)(struct device *dev);
-	void (*shutdown)(struct device *dev);
-
 	/* To handle board related suspend/resume functionality for MMC */
 	int (*suspend)(struct device *dev, int slot);
 	int (*resume)(struct device *dev, int slot);
@@ -95,7 +87,6 @@ struct omap_hsmmc_platform_data {
 		int switch_pin;			/* gpio (card detect) */
 		int gpio_wp;			/* gpio (write protect) */
 
-		int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
 		int (*set_power)(struct device *dev, int slot,
 				 int power_on, int vdd);
 		int (*get_ro)(struct device *dev, int slot);
-- 
2.1.0

[PATCH v2 4/9] omap_hsmmc: remove un-ready power_saving field in omap2_hsmmc_info

[Andreas Fenkart]

these fields are never read, probably an unimplemented feature
or superseded by pm_runtime

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index ddfc8df..0a8ac84 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -500,7 +500,6 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
 		.cover_only	= true,
 		.gpio_cd	= 160,
 		.gpio_wp	= -EINVAL,
-		.power_saving	= true,
 	},
 	{
 		.name		= "internal",
@@ -510,7 +509,6 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.nonremovable	= true,
-		.power_saving	= true,
 		.remux		= rx51_mmc2_remux,
 	},
 	{}	/* Terminator */
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index bdc8870..30c78c1 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -16,7 +16,6 @@ struct omap2_hsmmc_info {
 	bool	ext_clock;	/* use external pin for input clock */
 	bool	cover_only;	/* No card detect - just cover switch */
 	bool	nonremovable;	/* Nonremovable e.g. eMMC */
-	bool	power_saving;	/* Try to sleep or power off when possible */
 	bool	deferred;	/* mmc needs a deferred probe */
 	int	gpio_cd;	/* or -EINVAL */
 	int	gpio_wp;	/* or -EINVAL */
-- 
2.1.0

[PATCH v2 5/9] omap_hsmmc: remove unused get_context_loss_count callback

[Andreas Fenkart]

trigger of this callback has been removed in 0a82e06e6183

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 1c10402..312f13d 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -32,17 +32,6 @@ static u16 control_devconf1_offset;
 
 #define HSMMC_NAME_LEN	9
 
-#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
-
-static int hsmmc_get_context_loss(struct device *dev)
-{
-	return omap_pm_get_dev_context_loss_count(dev);
-}
-
-#else
-#define hsmmc_get_context_loss NULL
-#endif
-
 static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
 				  int power_on, int vdd)
 {
@@ -264,7 +253,6 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	mmc->slots[0].caps = c->caps;
 	mmc->slots[0].internal_clock = !c->ext_clock;
 	mmc->reg_offset = 0;
-	mmc->get_context_loss_count = hsmmc_get_context_loss;
 
 	mmc->slots[0].switch_pin = c->gpio_cd;
 	mmc->slots[0].gpio_wp = c->gpio_wp;
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 2807786..dc44dfb 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -49,9 +49,6 @@ struct omap_hsmmc_platform_data {
 	int (*suspend)(struct device *dev, int slot);
 	int (*resume)(struct device *dev, int slot);
 
-	/* Return context loss count due to PM states changing */
-	int (*get_context_loss_count)(struct device *dev);
-
 	/* Integrating attributes from the omap_hwmod layer */
 	u8 controller_flags;
 
-- 
2.1.0

[PATCH v2 6/9] omap_hsmmc: remove unnecessary omap_hsmmc_slot_data indirection

[Andreas Fenkart]

omap_hsmmc supports only one slot per controller, see OMAP_MMC_MAX_SLOTS.
This unnecessary indirection leads to confusion in the omap_hsmmc driver.
For example the card_detect callback is not installed by platform code
but from the driver probe function. So it should be a field of
omap_hsmmc_host. But since it is declared under the platform slot while
the drivers struct omap_hsmmc_host has no slot abstraction, this looks
like a bug, especially when not familiar that this driver only supports
1 slot anyway.
Either we should add a slot abstraction to omap_hsmmc_host or remove
it from the platform data struct. Removed since slot support is
an un-implemented feature

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 312f13d..a535cd3 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -38,8 +38,8 @@ static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
 	u32 reg, prog_io;
 	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
-	if (mmc->slots[0].remux)
-		mmc->slots[0].remux(dev, slot, power_on);
+	if (mmc->remux)
+		mmc->remux(dev, slot, power_on);
 
 	/*
 	 * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
@@ -61,7 +61,7 @@ static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
 			omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
 		}
 
-		if (mmc->slots[0].internal_clock) {
+		if (mmc->internal_clock) {
 			reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
 			reg |= OMAP2_MMCSDIO1ADPCLKISEL;
 			omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
@@ -114,7 +114,7 @@ static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
 	u32 reg;
 
 	reg = omap_ctrl_readl(control_devconf1_offset);
-	if (mmc->slots[0].internal_clock)
+	if (mmc->internal_clock)
 		reg |= OMAP2_MMCSDIO2ADPCLKISEL;
 	else
 		reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
@@ -126,8 +126,8 @@ static void hsmmc2_before_set_reg(struct device *dev, int slot,
 {
 	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
-	if (mmc->slots[0].remux)
-		mmc->slots[0].remux(dev, slot, power_on);
+	if (mmc->remux)
+		mmc->remux(dev, slot, power_on);
 
 	if (power_on)
 		hsmmc2_select_input_clk_src(mmc);
@@ -153,14 +153,14 @@ static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
 static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
 				  *mmc_controller, int controller_nr)
 {
-	if (gpio_is_valid(mmc_controller->slots[0].switch_pin) &&
-		(mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
-		omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
-					OMAP_PIN_INPUT_PULLUP);
-	if (gpio_is_valid(mmc_controller->slots[0].gpio_wp) &&
-		(mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
-		omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
-					OMAP_PIN_INPUT_PULLUP);
+	if (gpio_is_valid(mmc_controller->switch_pin) &&
+	    (mmc_controller->switch_pin < OMAP_MAX_GPIO_LINES))
+		omap_mux_init_gpio(mmc_controller->switch_pin,
+				   OMAP_PIN_INPUT_PULLUP);
+	if (gpio_is_valid(mmc_controller->gpio_wp) &&
+	    (mmc_controller->gpio_wp < OMAP_MAX_GPIO_LINES))
+		omap_mux_init_gpio(mmc_controller->gpio_wp,
+				   OMAP_PIN_INPUT_PULLUP);
 	if (cpu_is_omap34xx()) {
 		if (controller_nr == 0) {
 			omap_mux_init_signal("sdmmc1_clk",
@@ -169,7 +169,7 @@ static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
 				OMAP_PIN_INPUT_PULLUP);
 			omap_mux_init_signal("sdmmc1_dat0",
 				OMAP_PIN_INPUT_PULLUP);
-			if (mmc_controller->slots[0].caps &
+			if (mmc_controller->caps &
 				(MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) {
 				omap_mux_init_signal("sdmmc1_dat1",
 					OMAP_PIN_INPUT_PULLUP);
@@ -178,7 +178,7 @@ static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
 				omap_mux_init_signal("sdmmc1_dat3",
 					OMAP_PIN_INPUT_PULLUP);
 			}
-			if (mmc_controller->slots[0].caps &
+			if (mmc_controller->caps &
 						MMC_CAP_8_BIT_DATA) {
 				omap_mux_init_signal("sdmmc1_dat4",
 					OMAP_PIN_INPUT_PULLUP);
@@ -203,7 +203,7 @@ static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
 			 * For 8 wire configurations, Lines DAT4, 5, 6 and 7
 			 * need to be muxed in the board-*.c files
 			 */
-			if (mmc_controller->slots[0].caps &
+			if (mmc_controller->caps &
 				(MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)) {
 				omap_mux_init_signal("sdmmc2_dat1",
 					OMAP_PIN_INPUT_PULLUP);
@@ -212,7 +212,7 @@ static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data
 				omap_mux_init_signal("sdmmc2_dat3",
 					OMAP_PIN_INPUT_PULLUP);
 			}
-			if (mmc_controller->slots[0].caps &
+			if (mmc_controller->caps &
 							MMC_CAP_8_BIT_DATA) {
 				omap_mux_init_signal("sdmmc2_dat4.sdmmc2_dat4",
 					OMAP_PIN_INPUT_PULLUP);
@@ -248,23 +248,23 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	else
 		snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
 								c->mmc, 1);
-	mmc->slots[0].name = hc_name;
+	mmc->name = hc_name;
 	mmc->nr_slots = 1;
-	mmc->slots[0].caps = c->caps;
-	mmc->slots[0].internal_clock = !c->ext_clock;
+	mmc->caps = c->caps;
+	mmc->internal_clock = !c->ext_clock;
 	mmc->reg_offset = 0;
 
-	mmc->slots[0].switch_pin = c->gpio_cd;
-	mmc->slots[0].gpio_wp = c->gpio_wp;
+	mmc->switch_pin = c->gpio_cd;
+	mmc->gpio_wp = c->gpio_wp;
 
-	mmc->slots[0].remux = c->remux;
-	mmc->slots[0].init_card = c->init_card;
+	mmc->remux = c->remux;
+	mmc->init_card = c->init_card;
 
 	if (c->cover_only)
-		mmc->slots[0].cover = 1;
+		mmc->cover = 1;
 
 	if (c->nonremovable)
-		mmc->slots[0].nonremovable = 1;
+		mmc->nonremovable = 1;
 
 	/*
 	 * NOTE:  MMC slots should have a Vcc regulator set up.
@@ -274,42 +274,42 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	 * temporary HACK: ocr_mask instead of fixed supply
 	 */
 	if (soc_is_am35xx())
-		mmc->slots[0].ocr_mask = MMC_VDD_165_195 |
+		mmc->ocr_mask = MMC_VDD_165_195 |
 					 MMC_VDD_26_27 |
 					 MMC_VDD_27_28 |
 					 MMC_VDD_29_30 |
 					 MMC_VDD_30_31 |
 					 MMC_VDD_31_32;
 	else
-		mmc->slots[0].ocr_mask = c->ocr_mask;
+		mmc->ocr_mask = c->ocr_mask;
 
 	if (!soc_is_am35xx())
-		mmc->slots[0].features |= HSMMC_HAS_PBIAS;
+		mmc->features |= HSMMC_HAS_PBIAS;
 
 	switch (c->mmc) {
 	case 1:
-		if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
+		if (mmc->features & HSMMC_HAS_PBIAS) {
 			/* on-chip level shifting via PBIAS0/PBIAS1 */
-			mmc->slots[0].before_set_reg =
+			mmc->before_set_reg =
 					omap_hsmmc1_before_set_reg;
-			mmc->slots[0].after_set_reg =
+			mmc->after_set_reg =
 					omap_hsmmc1_after_set_reg;
 		}
 
 		if (soc_is_am35xx())
-			mmc->slots[0].set_power = nop_mmc_set_power;
+			mmc->set_power = nop_mmc_set_power;
 
 		/* OMAP3630 HSMMC1 supports only 4-bit */
 		if (cpu_is_omap3630() &&
 				(c->caps & MMC_CAP_8_BIT_DATA)) {
 			c->caps &= ~MMC_CAP_8_BIT_DATA;
 			c->caps |= MMC_CAP_4_BIT_DATA;
-			mmc->slots[0].caps = c->caps;
+			mmc->caps = c->caps;
 		}
 		break;
 	case 2:
 		if (soc_is_am35xx())
-			mmc->slots[0].set_power = am35x_hsmmc2_set_power;
+			mmc->set_power = am35x_hsmmc2_set_power;
 
 		if (c->ext_clock)
 			c->transceiver = 1;
@@ -317,17 +317,17 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 			c->caps &= ~MMC_CAP_8_BIT_DATA;
 			c->caps |= MMC_CAP_4_BIT_DATA;
 		}
-		if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
+		if (mmc->features & HSMMC_HAS_PBIAS) {
 			/* off-chip level shifting, or none */
-			mmc->slots[0].before_set_reg = hsmmc2_before_set_reg;
-			mmc->slots[0].after_set_reg = NULL;
+			mmc->before_set_reg = hsmmc2_before_set_reg;
+			mmc->after_set_reg = NULL;
 		}
 		break;
 	case 3:
 	case 4:
 	case 5:
-		mmc->slots[0].before_set_reg = NULL;
-		mmc->slots[0].after_set_reg = NULL;
+		mmc->before_set_reg = NULL;
+		mmc->after_set_reg = NULL;
 		break;
 	default:
 		pr_err("MMC%d configuration not supported!\n", c->mmc);
@@ -362,8 +362,8 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 		if (!mmc_pdata)
 			continue;
 
-		mmc_pdata->slots[0].switch_pin = c->gpio_cd;
-		mmc_pdata->slots[0].gpio_wp = c->gpio_wp;
+		mmc_pdata->switch_pin = c->gpio_cd;
+		mmc_pdata->gpio_wp = c->gpio_wp;
 
 		res = omap_device_register(pdev);
 		if (res)
@@ -463,7 +463,7 @@ put_pdev:
 	platform_device_put(pdev);
 
 free_name:
-	kfree(mmc_data->slots[0].name);
+	kfree(mmc_data->name);
 
 free_mmc:
 	kfree(mmc_data);
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index f68ac1a..d05b7f3 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -155,7 +155,7 @@
  * omap.c controller driver. Luckily this is not currently done on any known
  * omap_hsmmc.c device.
  */
-#define mmc_slot(host)		(host->pdata->slots[host->slot_id])
+#define mmc_pdata(host)		host->pdata
 
 /*
  * MMC Host controller read/write API's
@@ -236,7 +236,7 @@ static int omap_hsmmc_card_detect(struct device *dev, int slot)
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	/* NOTE: assumes card detect signal is active-low */
-	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
+	return !gpio_get_value_cansleep(mmc->switch_pin);
 }
 
 static int omap_hsmmc_get_wp(struct device *dev, int slot)
@@ -245,7 +245,7 @@ static int omap_hsmmc_get_wp(struct device *dev, int slot)
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	/* NOTE: assumes write protect signal is active-high */
-	return gpio_get_value_cansleep(mmc->slots[0].gpio_wp);
+	return gpio_get_value_cansleep(mmc->gpio_wp);
 }
 
 static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
@@ -254,7 +254,7 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
 	/* NOTE: assumes card detect signal is active-low */
-	return !gpio_get_value_cansleep(mmc->slots[0].switch_pin);
+	return !gpio_get_value_cansleep(mmc->switch_pin);
 }
 
 #ifdef CONFIG_PM
@@ -264,7 +264,7 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
-	disable_irq(mmc->slots[0].card_detect_irq);
+	disable_irq(mmc->card_detect_irq);
 	return 0;
 }
 
@@ -273,7 +273,7 @@ static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
-	enable_irq(mmc->slots[0].card_detect_irq);
+	enable_irq(mmc->card_detect_irq);
 	return 0;
 }
 
@@ -300,8 +300,8 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on,
 	if (!host->vcc)
 		return 0;
 
-	if (mmc_slot(host).before_set_reg)
-		mmc_slot(host).before_set_reg(dev, slot, power_on, vdd);
+	if (mmc_pdata(host)->before_set_reg)
+		mmc_pdata(host)->before_set_reg(dev, slot, power_on, vdd);
 
 	if (host->pbias) {
 		if (host->pbias_enabled == 1) {
@@ -363,8 +363,8 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on,
 		}
 	}
 
-	if (mmc_slot(host).after_set_reg)
-		mmc_slot(host).after_set_reg(dev, slot, power_on, vdd);
+	if (mmc_pdata(host)->after_set_reg)
+		mmc_pdata(host)->after_set_reg(dev, slot, power_on, vdd);
 
 error_set_power:
 	return ret;
@@ -383,18 +383,18 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 	} else {
 		host->vcc = reg;
 		ocr_value = mmc_regulator_get_ocrmask(reg);
-		if (!mmc_slot(host).ocr_mask) {
-			mmc_slot(host).ocr_mask = ocr_value;
+		if (!mmc_pdata(host)->ocr_mask) {
+			mmc_pdata(host)->ocr_mask = ocr_value;
 		} else {
-			if (!(mmc_slot(host).ocr_mask & ocr_value)) {
+			if (!(mmc_pdata(host)->ocr_mask & ocr_value)) {
 				dev_err(host->dev, "ocrmask %x is not supported\n",
-					mmc_slot(host).ocr_mask);
-				mmc_slot(host).ocr_mask = 0;
+					mmc_pdata(host)->ocr_mask);
+				mmc_pdata(host)->ocr_mask = 0;
 				return -EINVAL;
 			}
 		}
 	}
-	mmc_slot(host).set_power = omap_hsmmc_set_power;
+	mmc_pdata(host)->set_power = omap_hsmmc_set_power;
 
 	/* Allow an aux regulator */
 	reg = devm_regulator_get_optional(host->dev, "vmmc_aux");
@@ -404,7 +404,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 	host->pbias = IS_ERR(reg) ? NULL : reg;
 
 	/* For eMMC do not power off when not in sleep state */
-	if (mmc_slot(host).no_regulator_off_init)
+	if (mmc_pdata(host)->no_regulator_off_init)
 		return 0;
 	/*
 	 * To disable boot_on regulator, enable regulator
@@ -412,10 +412,10 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 	 */
 	if ((host->vcc && regulator_is_enabled(host->vcc) > 0) ||
 	    (host->vcc_aux && regulator_is_enabled(host->vcc_aux))) {
-		int vdd = ffs(mmc_slot(host).ocr_mask) - 1;
+		int vdd = ffs(mmc_pdata(host)->ocr_mask) - 1;
 
-		mmc_slot(host).set_power(host->dev, host->slot_id, 1, vdd);
-		mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
+		mmc_pdata(host)->set_power(host->dev, host->slot_id, 1, vdd);
+		mmc_pdata(host)->set_power(host->dev, host->slot_id, 0, 0);
 	}
 
 	return 0;
@@ -423,7 +423,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 
 static void omap_hsmmc_reg_put(struct omap_hsmmc_host *host)
 {
-	mmc_slot(host).set_power = NULL;
+	mmc_pdata(host)->set_power = NULL;
 }
 
 static inline int omap_hsmmc_have_reg(void)
@@ -453,51 +453,53 @@ static int omap_hsmmc_gpio_init(struct omap_hsmmc_platform_data *pdata)
 {
 	int ret;
 
-	if (gpio_is_valid(pdata->slots[0].switch_pin)) {
-		if (pdata->slots[0].cover)
-			pdata->slots[0].get_cover_state =
+	if (gpio_is_valid(pdata->switch_pin)) {
+		if (pdata->cover)
+			pdata->get_cover_state =
 					omap_hsmmc_get_cover_state;
 		else
-			pdata->slots[0].card_detect = omap_hsmmc_card_detect;
-		pdata->slots[0].card_detect_irq =
-				gpio_to_irq(pdata->slots[0].switch_pin);
-		ret = gpio_request(pdata->slots[0].switch_pin, "mmc_cd");
+			pdata->card_detect = omap_hsmmc_card_detect;
+		pdata->card_detect_irq =
+				gpio_to_irq(pdata->switch_pin);
+		ret = gpio_request(pdata->switch_pin, "mmc_cd");
 		if (ret)
 			return ret;
-		ret = gpio_direction_input(pdata->slots[0].switch_pin);
+		ret = gpio_direction_input(pdata->switch_pin);
 		if (ret)
 			goto err_free_sp;
-	} else
-		pdata->slots[0].switch_pin = -EINVAL;
+	} else {
+		pdata->switch_pin = -EINVAL;
+	}
 
-	if (gpio_is_valid(pdata->slots[0].gpio_wp)) {
-		pdata->slots[0].get_ro = omap_hsmmc_get_wp;
-		ret = gpio_request(pdata->slots[0].gpio_wp, "mmc_wp");
+	if (gpio_is_valid(pdata->gpio_wp)) {
+		pdata->get_ro = omap_hsmmc_get_wp;
+		ret = gpio_request(pdata->gpio_wp, "mmc_wp");
 		if (ret)
 			goto err_free_cd;
-		ret = gpio_direction_input(pdata->slots[0].gpio_wp);
+		ret = gpio_direction_input(pdata->gpio_wp);
 		if (ret)
 			goto err_free_wp;
-	} else
-		pdata->slots[0].gpio_wp = -EINVAL;
+	} else {
+		pdata->gpio_wp = -EINVAL;
+	}
 
 	return 0;
 
 err_free_wp:
-	gpio_free(pdata->slots[0].gpio_wp);
+	gpio_free(pdata->gpio_wp);
 err_free_cd:
-	if (gpio_is_valid(pdata->slots[0].switch_pin))
+	if (gpio_is_valid(pdata->switch_pin))
 err_free_sp:
-		gpio_free(pdata->slots[0].switch_pin);
+		gpio_free(pdata->switch_pin);
 	return ret;
 }
 
 static void omap_hsmmc_gpio_free(struct omap_hsmmc_platform_data *pdata)
 {
-	if (gpio_is_valid(pdata->slots[0].gpio_wp))
-		gpio_free(pdata->slots[0].gpio_wp);
-	if (gpio_is_valid(pdata->slots[0].switch_pin))
-		gpio_free(pdata->slots[0].switch_pin);
+	if (gpio_is_valid(pdata->gpio_wp))
+		gpio_free(pdata->gpio_wp);
+	if (gpio_is_valid(pdata->switch_pin))
+		gpio_free(pdata->switch_pin);
 }
 
 /*
@@ -607,7 +609,7 @@ static void omap_hsmmc_set_clock(struct omap_hsmmc_host *host)
 	 *	  in capabilities register
 	 *	- MMC/SD clock coming out of controller > 25MHz
 	 */
-	if ((mmc_slot(host).features & HSMMC_HAS_HSPE_SUPPORT) &&
+	if ((mmc_pdata(host)->features & HSMMC_HAS_HSPE_SUPPORT) &&
 	    (ios->timing != MMC_TIMING_MMC_DDR52) &&
 	    ((OMAP_HSMMC_READ(host->base, CAPA) & HSS) == HSS)) {
 		regval = OMAP_HSMMC_READ(host->base, HCTL);
@@ -791,8 +793,8 @@ int omap_hsmmc_cover_is_closed(struct omap_hsmmc_host *host)
 {
 	int r = 1;
 
-	if (mmc_slot(host).get_cover_state)
-		r = mmc_slot(host).get_cover_state(host->dev, host->slot_id);
+	if (mmc_pdata(host)->get_cover_state)
+		r = mmc_pdata(host)->get_cover_state(host->dev, host->slot_id);
 	return r;
 }
 
@@ -816,7 +818,7 @@ omap_hsmmc_show_slot_name(struct device *dev, struct device_attribute *attr,
 	struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
 
-	return sprintf(buf, "%s\n", mmc_slot(host).name);
+	return sprintf(buf, "%s\n", mmc_pdata(host)->name);
 }
 
 static DEVICE_ATTR(slot_name, S_IRUGO, omap_hsmmc_show_slot_name, NULL);
@@ -1061,7 +1063,7 @@ static inline void omap_hsmmc_reset_controller_fsm(struct omap_hsmmc_host *host,
 	 * OMAP4 ES2 and greater has an updated reset logic.
 	 * Monitor a 0->1 transition first
 	 */
-	if (mmc_slot(host).features & HSMMC_HAS_UPDATED_RESET) {
+	if (mmc_pdata(host)->features & HSMMC_HAS_UPDATED_RESET) {
 		while ((!(OMAP_HSMMC_READ(host->base, SYSCTL) & bit))
 					&& (i++ < limit))
 			udelay(1);
@@ -1210,12 +1212,12 @@ static int omap_hsmmc_switch_opcond(struct omap_hsmmc_host *host, int vdd)
 		clk_disable_unprepare(host->dbclk);
 
 	/* Turn the power off */
-	ret = mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
+	ret = mmc_pdata(host)->set_power(host->dev, host->slot_id, 0, 0);
 
 	/* Turn the power ON with given VDD 1.8 or 3.0v */
 	if (!ret)
-		ret = mmc_slot(host).set_power(host->dev, host->slot_id, 1,
-					       vdd);
+		ret = mmc_pdata(host)->set_power(host->dev, host->slot_id, 1,
+						 vdd);
 	pm_runtime_get_sync(host->dev);
 	if (host->dbclk)
 		clk_prepare_enable(host->dbclk);
@@ -1259,11 +1261,11 @@ err:
 /* Protect the card while the cover is open */
 static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 {
-	if (!mmc_slot(host).get_cover_state)
+	if (!mmc_pdata(host)->get_cover_state)
 		return;
 
 	host->reqs_blocked = 0;
-	if (mmc_slot(host).get_cover_state(host->dev, host->slot_id)) {
+	if (mmc_pdata(host)->get_cover_state(host->dev, host->slot_id)) {
 		if (host->protect_card) {
 			dev_info(host->dev, "%s: cover is closed, "
 					 "card is now accessible\n",
@@ -1286,13 +1288,13 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
 {
 	struct omap_hsmmc_host *host = dev_id;
-	struct omap_hsmmc_slot_data *slot = &mmc_slot(host);
+	struct omap_hsmmc_platform_data *pdata = host->pdata;
 	int carddetect;
 
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
-	if (slot->card_detect)
-		carddetect = slot->card_detect(host->dev, host->slot_id);
+	if (pdata->card_detect)
+		carddetect = pdata->card_detect(host->dev, host->slot_id);
 	else {
 		omap_hsmmc_protect_card(host);
 		carddetect = -ENOSYS;
@@ -1618,12 +1620,12 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (ios->power_mode != host->power_mode) {
 		switch (ios->power_mode) {
 		case MMC_POWER_OFF:
-			mmc_slot(host).set_power(host->dev, host->slot_id,
-						 0, 0);
+			mmc_pdata(host)->set_power(host->dev, host->slot_id,
+						   0, 0);
 			break;
 		case MMC_POWER_UP:
-			mmc_slot(host).set_power(host->dev, host->slot_id,
-						 1, ios->vdd);
+			mmc_pdata(host)->set_power(host->dev, host->slot_id,
+						   1, ios->vdd);
 			break;
 		case MMC_POWER_ON:
 			do_send_init_stream = 1;
@@ -1668,26 +1670,26 @@ static int omap_hsmmc_get_cd(struct mmc_host *mmc)
 {
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
 
-	if (!mmc_slot(host).card_detect)
+	if (!mmc_pdata(host)->card_detect)
 		return -ENOSYS;
-	return mmc_slot(host).card_detect(host->dev, host->slot_id);
+	return mmc_pdata(host)->card_detect(host->dev, host->slot_id);
 }
 
 static int omap_hsmmc_get_ro(struct mmc_host *mmc)
 {
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
 
-	if (!mmc_slot(host).get_ro)
+	if (!mmc_pdata(host)->get_ro)
 		return -ENOSYS;
-	return mmc_slot(host).get_ro(host->dev, 0);
+	return mmc_pdata(host)->get_ro(host->dev, 0);
 }
 
 static void omap_hsmmc_init_card(struct mmc_host *mmc, struct mmc_card *card)
 {
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
 
-	if (mmc_slot(host).init_card)
-		mmc_slot(host).init_card(card);
+	if (mmc_pdata(host)->init_card)
+		mmc_pdata(host)->init_card(card);
 }
 
 static void omap_hsmmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
@@ -1968,33 +1970,33 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 
 	/* This driver only supports 1 slot */
 	pdata->nr_slots = 1;
-	pdata->slots[0].switch_pin = cd_gpio;
-	pdata->slots[0].gpio_wp = wp_gpio;
+	pdata->switch_pin = cd_gpio;
+	pdata->gpio_wp = wp_gpio;
 
 	if (of_find_property(np, "ti,non-removable", NULL)) {
-		pdata->slots[0].nonremovable = true;
-		pdata->slots[0].no_regulator_off_init = true;
+		pdata->nonremovable = true;
+		pdata->no_regulator_off_init = true;
 	}
 	of_property_read_u32(np, "bus-width", &bus_width);
 	if (bus_width == 4)
-		pdata->slots[0].caps |= MMC_CAP_4_BIT_DATA;
+		pdata->caps |= MMC_CAP_4_BIT_DATA;
 	else if (bus_width == 8)
-		pdata->slots[0].caps |= MMC_CAP_8_BIT_DATA;
+		pdata->caps |= MMC_CAP_8_BIT_DATA;
 
 	if (of_find_property(np, "ti,needs-special-reset", NULL))
-		pdata->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
+		pdata->features |= HSMMC_HAS_UPDATED_RESET;
 
 	if (!of_property_read_u32(np, "max-frequency", &max_freq))
 		pdata->max_freq = max_freq;
 
 	if (of_find_property(np, "ti,needs-special-hs-handling", NULL))
-		pdata->slots[0].features |= HSMMC_HAS_HSPE_SUPPORT;
+		pdata->features |= HSMMC_HAS_HSPE_SUPPORT;
 
 	if (of_find_property(np, "keep-power-in-suspend", NULL))
-		pdata->slots[0].pm_caps |= MMC_PM_KEEP_POWER;
+		pdata->pm_caps |= MMC_PM_KEEP_POWER;
 
 	if (of_find_property(np, "enable-sdio-wakeup", NULL))
-		pdata->slots[0].pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
+		pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
 
 	return pdata;
 }
@@ -2144,14 +2146,14 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
 		     MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE;
 
-	mmc->caps |= mmc_slot(host).caps;
+	mmc->caps |= mmc_pdata(host)->caps;
 	if (mmc->caps & MMC_CAP_8_BIT_DATA)
 		mmc->caps |= MMC_CAP_4_BIT_DATA;
 
-	if (mmc_slot(host).nonremovable)
+	if (mmc_pdata(host)->nonremovable)
 		mmc->caps |= MMC_CAP_NONREMOVABLE;
 
-	mmc->pm_caps = mmc_slot(host).pm_caps;
+	mmc->pm_caps = mmc_pdata(host)->pm_caps;
 
 	omap_hsmmc_conf_bus_power(host);
 
@@ -2204,19 +2206,19 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	if (omap_hsmmc_have_reg() && !mmc_slot(host).set_power) {
+	if (omap_hsmmc_have_reg() && !mmc_pdata(host)->set_power) {
 		ret = omap_hsmmc_reg_get(host);
 		if (ret)
 			goto err_irq;
 		host->use_reg = 1;
 	}
 
-	mmc->ocr_avail = mmc_slot(host).ocr_mask;
+	mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
 
 	/* Request IRQ for card detect */
-	if ((mmc_slot(host).card_detect_irq)) {
+	if ((mmc_pdata(host)->card_detect_irq)) {
 		ret = devm_request_threaded_irq(&pdev->dev,
-						mmc_slot(host).card_detect_irq,
+						mmc_pdata(host)->card_detect_irq,
 						NULL, omap_hsmmc_detect,
 					   IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 					   mmc_hostname(mmc), host);
@@ -2247,12 +2249,13 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 
 	mmc_add_host(mmc);
 
-	if (mmc_slot(host).name != NULL) {
+	if (mmc_pdata(host)->name != NULL) {
 		ret = device_create_file(&mmc->class_dev, &dev_attr_slot_name);
 		if (ret < 0)
 			goto err_slot_name;
 	}
-	if (mmc_slot(host).card_detect_irq && mmc_slot(host).get_cover_state) {
+	if (mmc_pdata(host)->card_detect_irq &&
+	    mmc_pdata(host)->get_cover_state) {
 		ret = device_create_file(&mmc->class_dev,
 					&dev_attr_cover_switch);
 		if (ret < 0)
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index dc44dfb..f84eebe 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -8,8 +8,6 @@
  * published by the Free Software Foundation.
  */
 
-#define OMAP_MMC_MAX_SLOTS	1
-
 /*
  * struct omap_hsmmc_dev_attr.flags possibilities
  *
@@ -55,62 +53,60 @@ struct omap_hsmmc_platform_data {
 	/* Register offset deviation */
 	u16 reg_offset;
 
-	struct omap_hsmmc_slot_data {
-		/*
-		 * 4/8 wires and any additional host capabilities
-		 * need to OR'd all capabilities (ref. linux/mmc/host.h)
-		 */
-		u32 caps;	/* Used for the MMC driver on 2430 and later */
-		u32 pm_caps;	/* PM capabilities of the mmc */
+	/*
+	 * 4/8 wires and any additional host capabilities
+	 * need to OR'd all capabilities (ref. linux/mmc/host.h)
+	 */
+	u32 caps;	/* Used for the MMC driver on 2430 and later */
+	u32 pm_caps;	/* PM capabilities of the mmc */
 
-		/* switch pin can be for card detect (default) or card cover */
-		unsigned cover:1;
+	/* switch pin can be for card detect (default) or card cover */
+	unsigned cover:1;
 
-		/* use the internal clock */
-		unsigned internal_clock:1;
+	/* use the internal clock */
+	unsigned internal_clock:1;
 
-		/* nonremovable e.g. eMMC */
-		unsigned nonremovable:1;
+	/* nonremovable e.g. eMMC */
+	unsigned nonremovable:1;
 
-		/* eMMC does not handle power off when not in sleep state */
-		unsigned no_regulator_off_init:1;
+	/* eMMC does not handle power off when not in sleep state */
+	unsigned no_regulator_off_init:1;
 
-		/* we can put the features above into this variable */
+	/* we can put the features above into this variable */
 #define HSMMC_HAS_PBIAS		(1 << 0)
 #define HSMMC_HAS_UPDATED_RESET	(1 << 1)
 #define HSMMC_HAS_HSPE_SUPPORT	(1 << 2)
-		unsigned features;
-
-		int switch_pin;			/* gpio (card detect) */
-		int gpio_wp;			/* gpio (write protect) */
-
-		int (*set_power)(struct device *dev, int slot,
-				 int power_on, int vdd);
-		int (*get_ro)(struct device *dev, int slot);
-		void (*remux)(struct device *dev, int slot, int power_on);
-		/* Call back before enabling / disabling regulators */
-		void (*before_set_reg)(struct device *dev, int slot,
-				       int power_on, int vdd);
-		/* Call back after enabling / disabling regulators */
-		void (*after_set_reg)(struct device *dev, int slot,
-				      int power_on, int vdd);
-		/* if we have special card, init it using this callback */
-		void (*init_card)(struct mmc_card *card);
-
-		/* return MMC cover switch state, can be NULL if not supported.
-		 *
-		 * possible return values:
-		 *   0 - closed
-		 *   1 - open
-		 */
-		int (*get_cover_state)(struct device *dev, int slot);
-
-		const char *name;
-		u32 ocr_mask;
-
-		/* Card detection IRQs */
-		int card_detect_irq;
-
-		int (*card_detect)(struct device *dev, int slot);
-	} slots[OMAP_MMC_MAX_SLOTS];
+	unsigned features;
+
+	int switch_pin;			/* gpio (card detect) */
+	int gpio_wp;			/* gpio (write protect) */
+
+	int (*set_power)(struct device *dev, int slot,
+			 int power_on, int vdd);
+	int (*get_ro)(struct device *dev, int slot);
+	void (*remux)(struct device *dev, int slot, int power_on);
+	/* Call back before enabling / disabling regulators */
+	void (*before_set_reg)(struct device *dev, int slot,
+			       int power_on, int vdd);
+	/* Call back after enabling / disabling regulators */
+	void (*after_set_reg)(struct device *dev, int slot,
+			      int power_on, int vdd);
+	/* if we have special card, init it using this callback */
+	void (*init_card)(struct mmc_card *card);
+
+	/* return MMC cover switch state, can be NULL if not supported.
+	 *
+	 * possible return values:
+	 *   0 - closed
+	 *   1 - open
+	 */
+	int (*get_cover_state)(struct device *dev, int slot);
+
+	const char *name;
+	u32 ocr_mask;
+
+	/* Card detection IRQs */
+	int card_detect_irq;
+
+	int (*card_detect)(struct device *dev, int slot);
 };
-- 
2.1.0

[PATCH v2 7/9] omap_hsmmc: pass mmc_priv struct to gpio init / free

[Andreas Fenkart]

this is needed when installing callbacks in the host struct and not
in the platform data, e.g. cover detect irq should be stored in
omap_hsmmc_host and not platform data

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d05b7f3..f8cd3b3 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -449,7 +449,8 @@ static inline int omap_hsmmc_have_reg(void)
 
 #endif
 
-static int omap_hsmmc_gpio_init(struct omap_hsmmc_platform_data *pdata)
+static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
+				struct omap_hsmmc_platform_data *pdata)
 {
 	int ret;
 
@@ -494,7 +495,8 @@ err_free_sp:
 	return ret;
 }
 
-static void omap_hsmmc_gpio_free(struct omap_hsmmc_platform_data *pdata)
+static void omap_hsmmc_gpio_free(struct omap_hsmmc_host *host,
+				 struct omap_hsmmc_platform_data *pdata)
 {
 	if (gpio_is_valid(pdata->gpio_wp))
 		gpio_free(pdata->gpio_wp);
@@ -2054,14 +2056,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
-	ret = omap_hsmmc_gpio_init(pdata);
-	if (ret)
-		goto err;
-
 	mmc = mmc_alloc_host(sizeof(struct omap_hsmmc_host), &pdev->dev);
 	if (!mmc) {
 		ret = -ENOMEM;
-		goto err_alloc;
+		goto err;
 	}
 
 	host		= mmc_priv(mmc);
@@ -2078,6 +2076,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	host->next_data.cookie = 1;
 	host->pbias_enabled = 0;
 
+	ret = omap_hsmmc_gpio_init(host, pdata);
+	if (ret)
+		goto err_gpio;
+
 	platform_set_drvdata(pdev, host);
 
 	if (pdev->dev.of_node)
@@ -2283,9 +2285,9 @@ err_irq:
 	if (host->dbclk)
 		clk_disable_unprepare(host->dbclk);
 err1:
+	omap_hsmmc_gpio_free(host, pdata);
+err_gpio:
 	mmc_free_host(mmc);
-err_alloc:
-	omap_hsmmc_gpio_free(pdata);
 err:
 	return ret;
 }
@@ -2309,7 +2311,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 	if (host->dbclk)
 		clk_disable_unprepare(host->dbclk);
 
-	omap_hsmmc_gpio_free(host->pdata);
+	omap_hsmmc_gpio_free(host, host->pdata);
 	mmc_free_host(host->mmc);
 
 	return 0;
-- 
2.1.0

[PATCH v2 8/9] omap_hsmmc: Remove unnecessary callbacks from platform data

[Andreas Fenkart]

These callbacks are set during driver probe and not from the platform
init, -- evtl. they had been for oamp 1/2 -- for omap3 they are local
functions of the driver. These indirection could be dropped
altogether in favor of regular function calls TODO

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index f8cd3b3..0a1398a 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -221,6 +221,25 @@ struct omap_hsmmc_host {
 #define HSMMC_WAKE_IRQ_ENABLED	(1 << 2)
 	struct omap_hsmmc_next	next_data;
 	struct	omap_hsmmc_platform_data	*pdata;
+
+	/* To handle board related suspend/resume functionality for MMC */
+	int (*suspend)(struct device *dev, int slot);
+	int (*resume)(struct device *dev, int slot);
+
+	/* return MMC cover switch state, can be NULL if not supported.
+	 *
+	 * possible return values:
+	 *   0 - closed
+	 *   1 - open
+	 */
+	int (*get_cover_state)(struct device *dev, int slot);
+
+	/* Card detection IRQs */
+	int card_detect_irq;
+
+	int (*card_detect)(struct device *dev, int slot);
+	int (*get_ro)(struct device *dev, int slot);
+
 };
 
 struct omap_mmc_of_data {
@@ -262,18 +281,16 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
-	disable_irq(mmc->card_detect_irq);
+	disable_irq(host->card_detect_irq);
 	return 0;
 }
 
 static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
-	struct omap_hsmmc_platform_data *mmc = host->pdata;
 
-	enable_irq(mmc->card_detect_irq);
+	enable_irq(host->card_detect_irq);
 	return 0;
 }
 
@@ -456,11 +473,11 @@ static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
 
 	if (gpio_is_valid(pdata->switch_pin)) {
 		if (pdata->cover)
-			pdata->get_cover_state =
-					omap_hsmmc_get_cover_state;
+			host->get_cover_state =
+				omap_hsmmc_get_cover_state;
 		else
-			pdata->card_detect = omap_hsmmc_card_detect;
-		pdata->card_detect_irq =
+			host->card_detect = omap_hsmmc_card_detect;
+		host->card_detect_irq =
 				gpio_to_irq(pdata->switch_pin);
 		ret = gpio_request(pdata->switch_pin, "mmc_cd");
 		if (ret)
@@ -473,7 +490,7 @@ static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host,
 	}
 
 	if (gpio_is_valid(pdata->gpio_wp)) {
-		pdata->get_ro = omap_hsmmc_get_wp;
+		host->get_ro = omap_hsmmc_get_wp;
 		ret = gpio_request(pdata->gpio_wp, "mmc_wp");
 		if (ret)
 			goto err_free_cd;
@@ -795,8 +812,8 @@ int omap_hsmmc_cover_is_closed(struct omap_hsmmc_host *host)
 {
 	int r = 1;
 
-	if (mmc_pdata(host)->get_cover_state)
-		r = mmc_pdata(host)->get_cover_state(host->dev, host->slot_id);
+	if (host->get_cover_state)
+		r = host->get_cover_state(host->dev, host->slot_id);
 	return r;
 }
 
@@ -1263,11 +1280,11 @@ err:
 /* Protect the card while the cover is open */
 static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 {
-	if (!mmc_pdata(host)->get_cover_state)
+	if (!host->get_cover_state)
 		return;
 
 	host->reqs_blocked = 0;
-	if (mmc_pdata(host)->get_cover_state(host->dev, host->slot_id)) {
+	if (host->get_cover_state(host->dev, host->slot_id)) {
 		if (host->protect_card) {
 			dev_info(host->dev, "%s: cover is closed, "
 					 "card is now accessible\n",
@@ -1290,13 +1307,12 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
 {
 	struct omap_hsmmc_host *host = dev_id;
-	struct omap_hsmmc_platform_data *pdata = host->pdata;
 	int carddetect;
 
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
-	if (pdata->card_detect)
-		carddetect = pdata->card_detect(host->dev, host->slot_id);
+	if (host->card_detect)
+		carddetect = host->card_detect(host->dev, host->slot_id);
 	else {
 		omap_hsmmc_protect_card(host);
 		carddetect = -ENOSYS;
@@ -1672,18 +1688,18 @@ static int omap_hsmmc_get_cd(struct mmc_host *mmc)
 {
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
 
-	if (!mmc_pdata(host)->card_detect)
+	if (!host->card_detect)
 		return -ENOSYS;
-	return mmc_pdata(host)->card_detect(host->dev, host->slot_id);
+	return host->card_detect(host->dev, host->slot_id);
 }
 
 static int omap_hsmmc_get_ro(struct mmc_host *mmc)
 {
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
 
-	if (!mmc_pdata(host)->get_ro)
+	if (!host->get_ro)
 		return -ENOSYS;
-	return mmc_pdata(host)->get_ro(host->dev, 0);
+	return host->get_ro(host->dev, 0);
 }
 
 static void omap_hsmmc_init_card(struct mmc_host *mmc, struct mmc_card *card)
@@ -2218,9 +2234,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
 
 	/* Request IRQ for card detect */
-	if ((mmc_pdata(host)->card_detect_irq)) {
+	if (host->card_detect_irq) {
 		ret = devm_request_threaded_irq(&pdev->dev,
-						mmc_pdata(host)->card_detect_irq,
+						host->card_detect_irq,
 						NULL, omap_hsmmc_detect,
 					   IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 					   mmc_hostname(mmc), host);
@@ -2229,8 +2245,8 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 				"Unable to grab MMC CD IRQ\n");
 			goto err_irq_cd;
 		}
-		pdata->suspend = omap_hsmmc_suspend_cdirq;
-		pdata->resume = omap_hsmmc_resume_cdirq;
+		host->suspend = omap_hsmmc_suspend_cdirq;
+		host->resume = omap_hsmmc_resume_cdirq;
 	}
 
 	omap_hsmmc_disable_irq(host);
@@ -2256,8 +2272,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 		if (ret < 0)
 			goto err_slot_name;
 	}
-	if (mmc_pdata(host)->card_detect_irq &&
-	    mmc_pdata(host)->get_cover_state) {
+	if (host->card_detect_irq && host->get_cover_state) {
 		ret = device_create_file(&mmc->class_dev,
 					&dev_attr_cover_switch);
 		if (ret < 0)
@@ -2322,8 +2337,8 @@ static int omap_hsmmc_prepare(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
-	if (host->pdata->suspend)
-		return host->pdata->suspend(dev, host->slot_id);
+	if (host->suspend)
+		return host->suspend(dev, host->slot_id);
 
 	return 0;
 }
@@ -2332,8 +2347,8 @@ static void omap_hsmmc_complete(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
-	if (host->pdata->resume)
-		host->pdata->resume(dev, host->slot_id);
+	if (host->resume)
+		host->resume(dev, host->slot_id);
 
 }
 
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index f84eebe..0069d27 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -43,10 +43,6 @@ struct omap_hsmmc_platform_data {
 	 * maximum frequency on the MMC bus */
 	unsigned int max_freq;
 
-	/* To handle board related suspend/resume functionality for MMC */
-	int (*suspend)(struct device *dev, int slot);
-	int (*resume)(struct device *dev, int slot);
-
 	/* Integrating attributes from the omap_hwmod layer */
 	u8 controller_flags;
 
@@ -83,7 +79,6 @@ struct omap_hsmmc_platform_data {
 
 	int (*set_power)(struct device *dev, int slot,
 			 int power_on, int vdd);
-	int (*get_ro)(struct device *dev, int slot);
 	void (*remux)(struct device *dev, int slot, int power_on);
 	/* Call back before enabling / disabling regulators */
 	void (*before_set_reg)(struct device *dev, int slot,
@@ -94,19 +89,6 @@ struct omap_hsmmc_platform_data {
 	/* if we have special card, init it using this callback */
 	void (*init_card)(struct mmc_card *card);
 
-	/* return MMC cover switch state, can be NULL if not supported.
-	 *
-	 * possible return values:
-	 *   0 - closed
-	 *   1 - open
-	 */
-	int (*get_cover_state)(struct device *dev, int slot);
-
 	const char *name;
 	u32 ocr_mask;
-
-	/* Card detection IRQs */
-	int card_detect_irq;
-
-	int (*card_detect)(struct device *dev, int slot);
 };
-- 
2.1.0

[PATCH v2 9/9] omap_hsmmc: remove unused slot_id parameter

[Andreas Fenkart]

omap_hsmmc only supports one slot. So slot id is always zero, and
slot id is never used in the callbacks

Signed-off-by: Andreas Fenkart <afenkart@gmail.com>

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 0a8ac84..3d5040f 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -484,7 +484,7 @@ static struct omap_mux_partition *partition;
  * Current flows to eMMC when eMMC is off and the data lines are pulled up,
  * so pull them down. N.B. we pull 8 lines because we are using 8 lines.
  */
-static void rx51_mmc2_remux(struct device *dev, int slot, int power_on)
+static void rx51_mmc2_remux(struct device *dev, int power_on)
 {
 	if (power_on)
 		omap_mux_write_array(partition, rx51_mmc2_on_mux);
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index a535cd3..bdc0402 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -32,14 +32,14 @@ static u16 control_devconf1_offset;
 
 #define HSMMC_NAME_LEN	9
 
-static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
-				  int power_on, int vdd)
+static void omap_hsmmc1_before_set_reg(struct device *dev,
+				       int power_on, int vdd)
 {
 	u32 reg, prog_io;
 	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
 	if (mmc->remux)
-		mmc->remux(dev, slot, power_on);
+		mmc->remux(dev, power_on);
 
 	/*
 	 * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
@@ -85,8 +85,7 @@ static void omap_hsmmc1_before_set_reg(struct device *dev, int slot,
 	}
 }
 
-static void omap_hsmmc1_after_set_reg(struct device *dev, int slot,
-				 int power_on, int vdd)
+static void omap_hsmmc1_after_set_reg(struct device *dev, int power_on, int vdd)
 {
 	u32 reg;
 
@@ -121,20 +120,18 @@ static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
 	omap_ctrl_writel(reg, control_devconf1_offset);
 }
 
-static void hsmmc2_before_set_reg(struct device *dev, int slot,
-				   int power_on, int vdd)
+static void hsmmc2_before_set_reg(struct device *dev, int power_on, int vdd)
 {
 	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
 	if (mmc->remux)
-		mmc->remux(dev, slot, power_on);
+		mmc->remux(dev, power_on);
 
 	if (power_on)
 		hsmmc2_select_input_clk_src(mmc);
 }
 
-static int am35x_hsmmc2_set_power(struct device *dev, int slot,
-				  int power_on, int vdd)
+static int am35x_hsmmc2_set_power(struct device *dev, int power_on, int vdd)
 {
 	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
 
@@ -144,8 +141,7 @@ static int am35x_hsmmc2_set_power(struct device *dev, int slot,
 	return 0;
 }
 
-static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
-							int vdd)
+static int nop_mmc_set_power(struct device *dev, int power_on, int vdd)
 {
 	return 0;
 }
@@ -249,7 +245,6 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 		snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
 								c->mmc, 1);
 	mmc->name = hc_name;
-	mmc->nr_slots = 1;
 	mmc->caps = c->caps;
 	mmc->internal_clock = !c->ext_clock;
 	mmc->reg_offset = 0;
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 30c78c1..148cd9b 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -23,7 +23,7 @@ struct omap2_hsmmc_info {
 	struct platform_device *pdev;	/* mmc controller instance */
 	int	ocr_mask;	/* temporary HACK */
 	/* Remux (pad configuration) when powering on/off */
-	void (*remux)(struct device *dev, int slot, int power_on);
+	void (*remux)(struct device *dev, int power_on);
 	/* init some special card */
 	void (*init_card)(struct mmc_card *card);
 };
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 0a1398a..c063882 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -207,7 +207,6 @@ struct omap_hsmmc_host {
 	int			use_dma, dma_ch;
 	struct dma_chan		*tx_chan;
 	struct dma_chan		*rx_chan;
-	int			slot_id;
 	int			response_busy;
 	int			context_loss;
 	int			protect_card;
@@ -223,8 +222,8 @@ struct omap_hsmmc_host {
 	struct	omap_hsmmc_platform_data	*pdata;
 
 	/* To handle board related suspend/resume functionality for MMC */
-	int (*suspend)(struct device *dev, int slot);
-	int (*resume)(struct device *dev, int slot);
+	int (*suspend)(struct device *dev);
+	int (*resume)(struct device *dev);
 
 	/* return MMC cover switch state, can be NULL if not supported.
 	 *
@@ -232,13 +231,13 @@ struct omap_hsmmc_host {
 	 *   0 - closed
 	 *   1 - open
 	 */
-	int (*get_cover_state)(struct device *dev, int slot);
+	int (*get_cover_state)(struct device *dev);
 
 	/* Card detection IRQs */
 	int card_detect_irq;
 
-	int (*card_detect)(struct device *dev, int slot);
-	int (*get_ro)(struct device *dev, int slot);
+	int (*card_detect)(struct device *dev);
+	int (*get_ro)(struct device *dev);
 
 };
 
@@ -249,7 +248,7 @@ struct omap_mmc_of_data {
 
 static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host);
 
-static int omap_hsmmc_card_detect(struct device *dev, int slot)
+static int omap_hsmmc_card_detect(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
@@ -258,7 +257,7 @@ static int omap_hsmmc_card_detect(struct device *dev, int slot)
 	return !gpio_get_value_cansleep(mmc->switch_pin);
 }
 
-static int omap_hsmmc_get_wp(struct device *dev, int slot)
+static int omap_hsmmc_get_wp(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
@@ -267,7 +266,7 @@ static int omap_hsmmc_get_wp(struct device *dev, int slot)
 	return gpio_get_value_cansleep(mmc->gpio_wp);
 }
 
-static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
+static int omap_hsmmc_get_cover_state(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 	struct omap_hsmmc_platform_data *mmc = host->pdata;
@@ -278,7 +277,7 @@ static int omap_hsmmc_get_cover_state(struct device *dev, int slot)
 
 #ifdef CONFIG_PM
 
-static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
+static int omap_hsmmc_suspend_cdirq(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
@@ -286,7 +285,7 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot)
 	return 0;
 }
 
-static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
+static int omap_hsmmc_resume_cdirq(struct device *dev)
 {
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
@@ -303,8 +302,7 @@ static int omap_hsmmc_resume_cdirq(struct device *dev, int slot)
 
 #ifdef CONFIG_REGULATOR
 
-static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on,
-				   int vdd)
+static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
 {
 	struct omap_hsmmc_host *host =
 		platform_get_drvdata(to_platform_device(dev));
@@ -318,7 +316,7 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on,
 		return 0;
 
 	if (mmc_pdata(host)->before_set_reg)
-		mmc_pdata(host)->before_set_reg(dev, slot, power_on, vdd);
+		mmc_pdata(host)->before_set_reg(dev, power_on, vdd);
 
 	if (host->pbias) {
 		if (host->pbias_enabled == 1) {
@@ -381,7 +379,7 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on,
 	}
 
 	if (mmc_pdata(host)->after_set_reg)
-		mmc_pdata(host)->after_set_reg(dev, slot, power_on, vdd);
+		mmc_pdata(host)->after_set_reg(dev, power_on, vdd);
 
 error_set_power:
 	return ret;
@@ -431,8 +429,8 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 	    (host->vcc_aux && regulator_is_enabled(host->vcc_aux))) {
 		int vdd = ffs(mmc_pdata(host)->ocr_mask) - 1;
 
-		mmc_pdata(host)->set_power(host->dev, host->slot_id, 1, vdd);
-		mmc_pdata(host)->set_power(host->dev, host->slot_id, 0, 0);
+		mmc_pdata(host)->set_power(host->dev, 1, vdd);
+		mmc_pdata(host)->set_power(host->dev, 0, 0);
 	}
 
 	return 0;
@@ -813,7 +811,7 @@ int omap_hsmmc_cover_is_closed(struct omap_hsmmc_host *host)
 	int r = 1;
 
 	if (host->get_cover_state)
-		r = host->get_cover_state(host->dev, host->slot_id);
+		r = host->get_cover_state(host->dev);
 	return r;
 }
 
@@ -1231,12 +1229,11 @@ static int omap_hsmmc_switch_opcond(struct omap_hsmmc_host *host, int vdd)
 		clk_disable_unprepare(host->dbclk);
 
 	/* Turn the power off */
-	ret = mmc_pdata(host)->set_power(host->dev, host->slot_id, 0, 0);
+	ret = mmc_pdata(host)->set_power(host->dev, 0, 0);
 
 	/* Turn the power ON with given VDD 1.8 or 3.0v */
 	if (!ret)
-		ret = mmc_pdata(host)->set_power(host->dev, host->slot_id, 1,
-						 vdd);
+		ret = mmc_pdata(host)->set_power(host->dev, 1, vdd);
 	pm_runtime_get_sync(host->dev);
 	if (host->dbclk)
 		clk_prepare_enable(host->dbclk);
@@ -1284,7 +1281,7 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
 		return;
 
 	host->reqs_blocked = 0;
-	if (host->get_cover_state(host->dev, host->slot_id)) {
+	if (host->get_cover_state(host->dev)) {
 		if (host->protect_card) {
 			dev_info(host->dev, "%s: cover is closed, "
 					 "card is now accessible\n",
@@ -1312,7 +1309,7 @@ static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
 	if (host->card_detect)
-		carddetect = host->card_detect(host->dev, host->slot_id);
+		carddetect = host->card_detect(host->dev);
 	else {
 		omap_hsmmc_protect_card(host);
 		carddetect = -ENOSYS;
@@ -1638,12 +1635,10 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (ios->power_mode != host->power_mode) {
 		switch (ios->power_mode) {
 		case MMC_POWER_OFF:
-			mmc_pdata(host)->set_power(host->dev, host->slot_id,
-						   0, 0);
+			mmc_pdata(host)->set_power(host->dev, 0, 0);
 			break;
 		case MMC_POWER_UP:
-			mmc_pdata(host)->set_power(host->dev, host->slot_id,
-						   1, ios->vdd);
+			mmc_pdata(host)->set_power(host->dev, 1, ios->vdd);
 			break;
 		case MMC_POWER_ON:
 			do_send_init_stream = 1;
@@ -1690,7 +1685,7 @@ static int omap_hsmmc_get_cd(struct mmc_host *mmc)
 
 	if (!host->card_detect)
 		return -ENOSYS;
-	return host->card_detect(host->dev, host->slot_id);
+	return host->card_detect(host->dev);
 }
 
 static int omap_hsmmc_get_ro(struct mmc_host *mmc)
@@ -1699,7 +1694,7 @@ static int omap_hsmmc_get_ro(struct mmc_host *mmc)
 
 	if (!host->get_ro)
 		return -ENOSYS;
-	return host->get_ro(host->dev, 0);
+	return host->get_ro(host->dev);
 }
 
 static void omap_hsmmc_init_card(struct mmc_host *mmc, struct mmc_card *card)
@@ -1986,8 +1981,6 @@ static struct omap_hsmmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
 	if (of_find_property(np, "ti,dual-volt", NULL))
 		pdata->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
 
-	/* This driver only supports 1 slot */
-	pdata->nr_slots = 1;
 	pdata->switch_pin = cd_gpio;
 	pdata->gpio_wp = wp_gpio;
 
@@ -2058,11 +2051,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	if (pdata->nr_slots == 0) {
-		dev_err(&pdev->dev, "No Slots\n");
-		return -ENXIO;
-	}
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
 	if (res == NULL || irq < 0)
@@ -2085,7 +2073,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	host->use_dma	= 1;
 	host->dma_ch	= -1;
 	host->irq	= irq;
-	host->slot_id	= 0;
 	host->mapbase	= res->start + pdata->reg_offset;
 	host->base	= base + pdata->reg_offset;
 	host->power_mode = MMC_POWER_OFF;
@@ -2338,7 +2325,7 @@ static int omap_hsmmc_prepare(struct device *dev)
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
 	if (host->suspend)
-		return host->suspend(dev, host->slot_id);
+		return host->suspend(dev);
 
 	return 0;
 }
@@ -2348,7 +2335,7 @@ static void omap_hsmmc_complete(struct device *dev)
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
 	if (host->resume)
-		host->resume(dev, host->slot_id);
+		host->resume(dev);
 
 }
 
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 0069d27..ef778e1 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -36,9 +36,6 @@ struct omap_hsmmc_platform_data {
 	/* back-link to device */
 	struct device *dev;
 
-	/* number of slots per controller */
-	unsigned nr_slots:2;
-
 	/* set if your board has components or wiring that limits the
 	 * maximum frequency on the MMC bus */
 	unsigned int max_freq;
@@ -77,15 +74,12 @@ struct omap_hsmmc_platform_data {
 	int switch_pin;			/* gpio (card detect) */
 	int gpio_wp;			/* gpio (write protect) */
 
-	int (*set_power)(struct device *dev, int slot,
-			 int power_on, int vdd);
-	void (*remux)(struct device *dev, int slot, int power_on);
+	int (*set_power)(struct device *dev, int power_on, int vdd);
+	void (*remux)(struct device *dev, int power_on);
 	/* Call back before enabling / disabling regulators */
-	void (*before_set_reg)(struct device *dev, int slot,
-			       int power_on, int vdd);
+	void (*before_set_reg)(struct device *dev, int power_on, int vdd);
 	/* Call back after enabling / disabling regulators */
-	void (*after_set_reg)(struct device *dev, int slot,
-			      int power_on, int vdd);
+	void (*after_set_reg)(struct device *dev, int power_on, int vdd);
 	/* if we have special card, init it using this callback */
 	void (*init_card)(struct mmc_card *card);
 
-- 
2.1.0

Re: [PATCH v2 9/9] omap_hsmmc: remove unused slot_id parameter

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 249 bytes --]

On Mon, Sep 29, 2014 at 11:32:59AM +0200, Andreas Fenkart wrote:
> omap_hsmmc only supports one slot. So slot id is always zero, and
> slot id is never used in the callbacks

I wonder if this will break slot multiplexing on n8x0.

-- 
balbi

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [PATCH v2 9/9] omap_hsmmc: remove unused slot_id parameter

[Tony Lindgren]

* Felipe Balbi <balbi@ti.com> [141002 09:43]:
> On Mon, Sep 29, 2014 at 11:32:59AM +0200, Andreas Fenkart wrote:
> > omap_hsmmc only supports one slot. So slot id is always zero, and
> > slot id is never used in the callbacks
> 
> I wonder if this will break slot multiplexing on n8x0.

It's a different driver from this. This series separates out
the omap_mmc (with slot multiplexing) and omap_mmc_hs with no
slot multiplexing.

Regards,

Tony

Re: [PATCH v2 9/9] omap_hsmmc: remove unused slot_id parameter

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 619 bytes --]

On Thu, Oct 02, 2014 at 09:45:29AM -0700, Tony Lindgren wrote:
> * Felipe Balbi <balbi@ti.com> [141002 09:43]:
> > On Mon, Sep 29, 2014 at 11:32:59AM +0200, Andreas Fenkart wrote:
> > > omap_hsmmc only supports one slot. So slot id is always zero, and
> > > slot id is never used in the callbacks
> > 
> > I wonder if this will break slot multiplexing on n8x0.
> 
> It's a different driver from this. This series separates out
> the omap_mmc (with slot multiplexing) and omap_mmc_hs with no
> slot multiplexing.

alright, thanks for confirming :-) In that case, series looks pretty
good :-)

-- 
balbi

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [PATCH v2 0/9] unshare and simplify omap_hsmmc platform struct

[Tony Lindgren]

* Andreas Fenkart <afenkart@gmail.com> [140929 02:33]:
> v2:
> - replace erroneous mmci by omap1/2
> - add description to all patches
> - full compile check with:
> 	CONFIG_MACH_OMAP3_BEAGLE=y
> 	CONFIG_MACH_DEVKIT8000=y
> 	CONFIG_MACH_OMAP_LDP=y
> 	CONFIG_MACH_OMAP3530_LV_SOM=y
> 	CONFIG_MACH_OMAP3_TORPEDO=y
> 	CONFIG_MACH_OVERO=y
> 	CONFIG_MACH_OMAP3517EVM=y
> 	CONFIG_MACH_CRANEBOARD=y
> 	CONFIG_MACH_OMAP3_PANDORA=y
> 	CONFIG_MACH_TOUCHBOOK=y
> 	CONFIG_MACH_OMAP_3430SDP=y
> 	CONFIG_MACH_NOKIA_RX51=y
> 	CONFIG_MACH_CM_T35=y
> 	CONFIG_MACH_CM_T3517=y
> 	CONFIG_MACH_CM_T3730=y
> 	CONFIG_MACH_SBC3530=y
> - reorganized and added more patches, hence no blank ack added
> 
> 
> Andreas Fenkart (9):
>   omap_hsmmc: use separate platform data for ompa3 and omap 1/2 driver
>   omap_hsmmc: remove unused fields in platform_data
>   omap_hsmmc: remove un-initialized callbacks from platform data
>   omap_hsmmc: remove un-ready power_saving field in omap2_hsmmc_info
>   omap_hsmmc: remove unused get_context_loss_count callback
>   omap_hsmmc: remove unnecessary omap_hsmmc_slot_data indirection
>   omap_hsmmc: pass mmc_priv struct to gpio init / free
>   omap_hsmmc: Remove unnecessary callbacks from platform data
>   omap_hsmmc: remove unused slot_id parameter
> 
>  arch/arm/mach-omap2/board-rx51-peripherals.c       |   4 +-
>  arch/arm/mach-omap2/hsmmc.c                        | 155 +++++------
>  arch/arm/mach-omap2/hsmmc.h                        |   9 +-
>  arch/arm/mach-omap2/mmc.h                          |   6 +-
>  .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c |   6 +-
>  arch/arm/mach-omap2/omap_hwmod_3xxx_data.c         |   6 +-
>  drivers/mmc/host/omap_hsmmc.c                      | 282 ++++++++++-----------
>  include/linux/platform_data/hsmmc-omap.h           |  88 +++++++
>  8 files changed, 299 insertions(+), 257 deletions(-)
>  create mode 100644 include/linux/platform_data/hsmmc-omap.h

Looks good to me, please feel free to merge via the MMC
tree as this should not conflict with omap changes. For the
whole series:

Acked-by: Tony Lindgren <tony@atomide.com>

Re: [PATCH v2 0/9] unshare and simplify omap_hsmmc platform struct

[Ulf Hansson]

On 29 September 2014 11:32, Andreas Fenkart <afenkart@gmail.com> wrote:
> v2:
> - replace erroneous mmci by omap1/2
> - add description to all patches
> - full compile check with:
>         CONFIG_MACH_OMAP3_BEAGLE=y
>         CONFIG_MACH_DEVKIT8000=y
>         CONFIG_MACH_OMAP_LDP=y
>         CONFIG_MACH_OMAP3530_LV_SOM=y
>         CONFIG_MACH_OMAP3_TORPEDO=y
>         CONFIG_MACH_OVERO=y
>         CONFIG_MACH_OMAP3517EVM=y
>         CONFIG_MACH_CRANEBOARD=y
>         CONFIG_MACH_OMAP3_PANDORA=y
>         CONFIG_MACH_TOUCHBOOK=y
>         CONFIG_MACH_OMAP_3430SDP=y
>         CONFIG_MACH_NOKIA_RX51=y
>         CONFIG_MACH_CM_T35=y
>         CONFIG_MACH_CM_T3517=y
>         CONFIG_MACH_CM_T3730=y
>         CONFIG_MACH_SBC3530=y
> - reorganized and added more patches, hence no blank ack added
>
>
> Andreas Fenkart (9):
>   omap_hsmmc: use separate platform data for ompa3 and omap 1/2 driver
>   omap_hsmmc: remove unused fields in platform_data
>   omap_hsmmc: remove un-initialized callbacks from platform data
>   omap_hsmmc: remove un-ready power_saving field in omap2_hsmmc_info
>   omap_hsmmc: remove unused get_context_loss_count callback
>   omap_hsmmc: remove unnecessary omap_hsmmc_slot_data indirection
>   omap_hsmmc: pass mmc_priv struct to gpio init / free
>   omap_hsmmc: Remove unnecessary callbacks from platform data
>   omap_hsmmc: remove unused slot_id parameter
>
>  arch/arm/mach-omap2/board-rx51-peripherals.c       |   4 +-
>  arch/arm/mach-omap2/hsmmc.c                        | 155 +++++------
>  arch/arm/mach-omap2/hsmmc.h                        |   9 +-
>  arch/arm/mach-omap2/mmc.h                          |   6 +-
>  .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c |   6 +-
>  arch/arm/mach-omap2/omap_hwmod_3xxx_data.c         |   6 +-
>  drivers/mmc/host/omap_hsmmc.c                      | 282 ++++++++++-----------
>  include/linux/platform_data/hsmmc-omap.h           |  88 +++++++
>  8 files changed, 299 insertions(+), 257 deletions(-)
>  create mode 100644 include/linux/platform_data/hsmmc-omap.h
>
> --
> 2.1.0
>

Thanks! Applied for next!

Kind regards
Uffe

Re: [PATCH v2 0/9] unshare and simplify omap_hsmmc platform struct

[Ulf Hansson]

On 3 October 2014 15:00, Ulf Hansson <ulf.hansson@linaro.org> wrote:
> On 29 September 2014 11:32, Andreas Fenkart <afenkart@gmail.com> wrote:
>> v2:
>> - replace erroneous mmci by omap1/2
>> - add description to all patches
>> - full compile check with:
>>         CONFIG_MACH_OMAP3_BEAGLE=y
>>         CONFIG_MACH_DEVKIT8000=y
>>         CONFIG_MACH_OMAP_LDP=y
>>         CONFIG_MACH_OMAP3530_LV_SOM=y
>>         CONFIG_MACH_OMAP3_TORPEDO=y
>>         CONFIG_MACH_OVERO=y
>>         CONFIG_MACH_OMAP3517EVM=y
>>         CONFIG_MACH_CRANEBOARD=y
>>         CONFIG_MACH_OMAP3_PANDORA=y
>>         CONFIG_MACH_TOUCHBOOK=y
>>         CONFIG_MACH_OMAP_3430SDP=y
>>         CONFIG_MACH_NOKIA_RX51=y
>>         CONFIG_MACH_CM_T35=y
>>         CONFIG_MACH_CM_T3517=y
>>         CONFIG_MACH_CM_T3730=y
>>         CONFIG_MACH_SBC3530=y
>> - reorganized and added more patches, hence no blank ack added
>>
>>
>> Andreas Fenkart (9):
>>   omap_hsmmc: use separate platform data for ompa3 and omap 1/2 driver
>>   omap_hsmmc: remove unused fields in platform_data
>>   omap_hsmmc: remove un-initialized callbacks from platform data
>>   omap_hsmmc: remove un-ready power_saving field in omap2_hsmmc_info
>>   omap_hsmmc: remove unused get_context_loss_count callback
>>   omap_hsmmc: remove unnecessary omap_hsmmc_slot_data indirection
>>   omap_hsmmc: pass mmc_priv struct to gpio init / free
>>   omap_hsmmc: Remove unnecessary callbacks from platform data
>>   omap_hsmmc: remove unused slot_id parameter
>>
>>  arch/arm/mach-omap2/board-rx51-peripherals.c       |   4 +-
>>  arch/arm/mach-omap2/hsmmc.c                        | 155 +++++------
>>  arch/arm/mach-omap2/hsmmc.h                        |   9 +-
>>  arch/arm/mach-omap2/mmc.h                          |   6 +-
>>  .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c |   6 +-
>>  arch/arm/mach-omap2/omap_hwmod_3xxx_data.c         |   6 +-
>>  drivers/mmc/host/omap_hsmmc.c                      | 282 ++++++++++-----------
>>  include/linux/platform_data/hsmmc-omap.h           |  88 +++++++
>>  8 files changed, 299 insertions(+), 257 deletions(-)
>>  create mode 100644 include/linux/platform_data/hsmmc-omap.h
>>
>> --
>> 2.1.0
>>
>
> Thanks! Applied for next!

As you know, these had some issues for omap2. I have dropped them from
next branch, they will have to be considered for 3.19 instead.

Kind regards
Uffe