glamo-mci: Cleanup mmc clock rate control.

SVN-Revision: 16936

5 files changed, 325 insertions, 409 deletions

diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c
index 1a6adcdeae..60cfae843f 100644
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c
@@ -76,6 +76,7 @@ struct reg_range {
 	char *name;
 	char dump;
 };
+
 struct reg_range reg_range[] = {
 	{ 0x0000, 0x76,		"General",	1 },
 	{ 0x0200, 0x18,		"Host Bus",	1 },
@@ -86,7 +87,7 @@ struct reg_range reg_range[] = {
 /*		{ 0x0c00, 0xcc,		"MPEG",		0 }, */
 	{ 0x1100, 0xb2,		"LCD 1",	1 },
 	{ 0x1200, 0x64,		"LCD 2",	1 },
-	{ 0x1400, 0x40,		"MMC",		1 },
+	{ 0x1400, 0x42,		"MMC",		1 },
 /*		{ 0x1500, 0x080,	"MPU 0",	0 },
 	{ 0x1580, 0x080,	"MPU 1",	0 },
 	{ 0x1600, 0x080,	"Cmd Queue",	0 },
@@ -478,7 +479,7 @@ int __glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine)
 		break;
 	case GLAMO_ENGINE_2D:
 			__reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_2D,
-			                   GLAMO_CLOCK_2D_EN_M7CLK |
+							   GLAMO_CLOCK_2D_EN_M7CLK |
 							   GLAMO_CLOCK_2D_EN_GCLK |
 							   GLAMO_CLOCK_2D_DG_M7CLK |
 							   GLAMO_CLOCK_2D_DG_GCLK,
@@ -544,7 +545,40 @@ u_int16_t glamo_engine_clkreg_get(struct glamo_core *glamo,
 }
 EXPORT_SYMBOL_GPL(glamo_engine_clkreg_get);
 
-struct glamo_script reset_regs[] = {
+static const struct glamo_script engine_div_regs[__NUM_GLAMO_ENGINES] = {
+	[GLAMO_ENGINE_LCD] = {GLAMO_REG_CLOCK_GEN5_1, GLAMO_CLOCK_GEN51_EN_DIV_DCLK},
+	[GLAMO_ENGINE_MMC] = {GLAMO_REG_CLOCK_GEN5_1, GLAMO_CLOCK_GEN51_EN_DIV_TCLK},
+	[GLAMO_ENGINE_2D]  = {GLAMO_REG_CLOCK_GEN5_1, GLAMO_CLOCK_GEN51_EN_DIV_GCLK},
+};
+
+void glamo_engine_div_enable(struct glamo_core *glamo, enum glamo_engine engine)
+{
+	uint16_t reg = engine_div_regs[engine].reg;
+	uint16_t bit = engine_div_regs[engine].val;
+	uint16_t val;
+
+	spin_lock(&glamo->lock);
+	val = __reg_read(glamo, reg);
+	__reg_write(glamo, reg, val | bit);
+	spin_unlock(&glamo->lock);
+	mdelay(5);
+}
+EXPORT_SYMBOL_GPL(glamo_engine_div_enable);
+
+void glamo_engine_div_disable(struct glamo_core *glamo, enum glamo_engine engine)
+{
+	uint16_t reg = engine_div_regs[engine].reg;
+	uint16_t bit = engine_div_regs[engine].val;
+	uint16_t val;
+
+	spin_lock(&glamo->lock);
+	val = __reg_read(glamo, reg);
+	__reg_write(glamo, reg, val & ~bit);
+	spin_unlock(&glamo->lock);
+}
+EXPORT_SYMBOL_GPL(glamo_engine_div_disable);
+
+static const struct glamo_script reset_regs[] = {
 	[GLAMO_ENGINE_LCD] = {
 		GLAMO_REG_CLOCK_LCD, GLAMO_CLOCK_LCD_RESET
 	},
@@ -572,18 +606,18 @@ struct glamo_script reset_regs[] = {
 
 void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine)
 {
-	struct glamo_script *rst;
+    uint16_t reg = reset_regs[engine].reg;
+    uint16_t val = reset_regs[engine].val;
 
 	if (engine >= ARRAY_SIZE(reset_regs)) {
 		dev_warn(&glamo->pdev->dev, "unknown engine %u ", engine);
 		return;
 	}
 
-	rst = &reset_regs[engine];
 
 	spin_lock(&glamo->lock);
-	__reg_set_bit(glamo, rst->reg, rst->val);
-	__reg_clear_bit(glamo, rst->reg, rst->val);
+	__reg_set_bit(glamo, reg, val);
+	__reg_clear_bit(glamo, reg, val);
 	spin_unlock(&glamo->lock);
 }
 EXPORT_SYMBOL_GPL(glamo_engine_reset);
@@ -599,21 +633,12 @@ void glamo_lcm_reset(struct platform_device *pdev, int level)
 }
 EXPORT_SYMBOL_GPL(glamo_lcm_reset);
 
-enum glamo_pll {
-	GLAMO_PLL1,
-	GLAMO_PLL2,
-};
-
-static int glamo_pll_rate(struct glamo_core *glamo,
+int glamo_pll_rate(struct glamo_core *glamo,
 			  enum glamo_pll pll)
 {
 	u_int16_t reg;
-	unsigned int div = 512;
 	unsigned int osci = glamo->pdata->osci_clock_rate;
 
-	if (osci == 32768)
-		div = 1;
-
 	switch (pll) {
 	case GLAMO_PLL1:
 		reg = __reg_read(glamo, GLAMO_REG_PLL_GEN1);
@@ -624,18 +649,19 @@ static int glamo_pll_rate(struct glamo_core *glamo,
 	default:
 		return -EINVAL;
 	}
-	return (osci/div)*reg;
+	return osci*reg;
 }
+EXPORT_SYMBOL_GPL(glamo_pll_rate);
 
 int glamo_engine_reclock(struct glamo_core *glamo,
 			 enum glamo_engine engine,
-			 int ps)
+			 int hz)
 {
-	int pll, khz;
-	u_int16_t reg, mask, val = 0;
+	int pll;
+	u_int16_t reg, mask, div;
 
-	if (!ps)
-		return 0;
+	if (!hz)
+		return -EINVAL;
 
 	switch (engine) {
 	case GLAMO_ENGINE_LCD:
@@ -643,6 +669,11 @@ int glamo_engine_reclock(struct glamo_core *glamo,
 		reg = GLAMO_REG_CLOCK_GEN7;
 		mask = 0xff;
 		break;
+	case GLAMO_ENGINE_MMC:
+		pll = GLAMO_PLL1;
+		reg = GLAMO_REG_CLOCK_GEN8;
+		mask = 0xff;
+		break;
 	default:
 		dev_warn(&glamo->pdev->dev,
 			 "reclock of engine 0x%x not supported\n", engine);
@@ -651,23 +682,22 @@ int glamo_engine_reclock(struct glamo_core *glamo,
 	}
 
 	pll = glamo_pll_rate(glamo, pll);
-	khz = 1000000000UL / ps;
 
-	if (khz)
-		val = (pll / khz) / 1000;
+	div = pll / hz;
+
+	if (div != 0 && pll / div <= hz)
+		--div;
+
+	if (div > mask)
+		div = mask;
 
 	dev_dbg(&glamo->pdev->dev,
-			"PLL %d, kHZ %d, div %d\n", pll, khz, val);
+			"PLL %d, kHZ %d, div %d\n", pll, hz / 1000, div);
 
-	if (val) {
-		val--;
-		reg_set_bit_mask(glamo, reg, mask, val);
-		mdelay(5); /* wait some time to stabilize */
+	reg_set_bit_mask(glamo, reg, mask, div);
+	mdelay(5); /* wait some time to stabilize */
 
-		return 0;
-	} else {
-		return -EINVAL;
-	}
+	return pll / (div + 1);
 }
 EXPORT_SYMBOL_GPL(glamo_engine_reclock);
 
@@ -675,7 +705,7 @@ EXPORT_SYMBOL_GPL(glamo_engine_reclock);
  * script support
  ***********************************************************************/
 
-int glamo_run_script(struct glamo_core *glamo, struct glamo_script *script,
+int glamo_run_script(struct glamo_core *glamo, const struct glamo_script *script,
 		     int len, int may_sleep)
 {
 	int i;
@@ -746,7 +776,7 @@ int glamo_run_script(struct glamo_core *glamo, struct glamo_script *script,
 }
 EXPORT_SYMBOL(glamo_run_script);
 
-static struct glamo_script glamo_init_script[] = {
+static const struct glamo_script glamo_init_script[] = {
 	{ GLAMO_REG_CLOCK_HOST,		0x1000 },
 		{ 0xfffe, 2 },
 	{ GLAMO_REG_CLOCK_MEMORY, 	0x1000 },
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.h b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.h
index 4675371025..f0c2ec3ee2 100644
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.h
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.h
@@ -17,6 +17,11 @@
 #define GLAMO_MMC_BUFFER_SIZE (64 * 1024)
 #define GLAMO_FB_SIZE	(GLAMO_INTERNAL_RAM_SIZE - GLAMO_MMC_BUFFER_SIZE)
 
+enum glamo_pll {
+    GLAMO_PLL1,
+    GLAMO_PLL2,
+};
+
 struct glamo_core {
 	int irq;
 	int irq_works; /* 0 means PCB does not support Glamo IRQ */
@@ -38,8 +43,14 @@ struct glamo_script {
 	u_int16_t val;
 };
 
+void glamo_engine_div_enable(struct glamo_core *glamo, enum glamo_engine engine);
+void glamo_engine_div_disable(struct glamo_core *glamo, enum glamo_engine engine);
+
+
+int glamo_pll_rate(struct glamo_core *glamo, enum glamo_pll pll);
+
 int glamo_run_script(struct glamo_core *glamo,
-		     struct glamo_script *script, int len, int may_sleep);
+		     const struct glamo_script *script, int len, int may_sleep);
 
 int glamo_engine_enable(struct glamo_core *glamo, enum glamo_engine engine);
 int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine);
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c
index 07a5251747..59491720e2 100644
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c
@@ -321,7 +321,7 @@ static void glamofb_program_mode(struct glamofb_handle* gfb) {
 	if (var->pixclock)
 		glamo_engine_reclock(gcore,
 				     GLAMO_ENGINE_LCD,
-				     gfb->fb->var.pixclock);
+				     (1000000000UL / gfb->fb->var.pixclock) * 1000);
 
 	reg_set_bit_mask(gfb,
 			 GLAMO_REG_LCD_WIDTH,
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
index ef39017ec6..37373f5d18 100644
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
@@ -23,15 +23,41 @@
 #include <linux/crc7.h>
 #include <linux/scatterlist.h>
 #include <linux/io.h>
+#include <linux/regulator/consumer.h>
 #include <linux/mfd/glamo.h>
 
-#include "glamo-mci.h"
 #include "glamo-core.h"
 #include "glamo-regs.h"
 
 #define DRIVER_NAME "glamo-mci"
 
-static void glamo_mci_send_request(struct mmc_host *mmc);
+struct glamo_mci_host {
+	struct platform_device *pdev;
+	struct glamo_mmc_platform_data *pdata;
+	struct mmc_host        *mmc;
+	struct resource        *mmio_mem;
+	struct resource        *data_mem;
+	void __iomem           *mmio_base;
+	u16 __iomem            *data_base;
+
+	struct regulator *regulator;
+	struct mmc_request *mrq;
+
+	unsigned int clk_rate;
+
+	unsigned short vdd;
+	char           power_mode;
+
+	unsigned char request_counter;
+
+	struct timer_list disable_timer;
+
+	struct work_struct irq_work;
+
+	unsigned clk_enabled : 1;
+};
+
+static void glamo_mci_send_request(struct mmc_host *mmc, struct mmc_request* mrq);
 static void glamo_mci_send_command(struct glamo_mci_host *host,
 				  struct mmc_command *cmd);
 
@@ -48,7 +74,7 @@ static void glamo_mci_send_command(struct glamo_mci_host *host,
  * for example
  */
 
-static int sd_max_clk = 50000000 / 3;
+static int sd_max_clk = 50000000;
 module_param(sd_max_clk, int, 0644);
 
 /*
@@ -85,35 +111,6 @@ static int sd_post_power_clock = 1000000;
 module_param(sd_post_power_clock, int, 0644);
 
 
-/*
- * SD Signal drive strength
- *
- * you can override this on kernel commandline using
- *
- *   glamo_mci.sd_drive=0
- *
- * for example
- */
-
-static int sd_drive;
-module_param(sd_drive, int, 0644);
-
-/*
- * SD allow SD clock to run while idle
- *
- * you can override this on kernel commandline using
- *
- *   glamo_mci.sd_idleclk=0
- *
- * for example
- */
-
-static int sd_idleclk = 0; /* disallow idle clock by default */
-module_param(sd_idleclk, int, 0644);
-
-/* used to stash real idleclk state in suspend: we force it to run in there */
-static int suspend_sd_idleclk;
-
 static inline void glamo_reg_write(struct glamo_mci_host *glamo,
 				u_int16_t reg, u_int16_t val)
 {
@@ -140,11 +137,34 @@ static void glamo_reg_set_bit_mask(struct glamo_mci_host *glamo,
 	glamo_reg_write(glamo, reg, tmp);
 }
 
-static void do_pio_read(struct glamo_mci_host *host)
+static void glamo_mci_clock_disable(struct glamo_mci_host *host) {
+	if (host->clk_enabled) {
+/*		glamo_engine_div_disable(host->pdata->core, GLAMO_ENGINE_MMC);*/
+		host->clk_enabled = 0;
+        printk("clk disabled\n");
+	}
+}
+
+static void glamo_mci_clock_enable(struct glamo_mci_host *host) {
+	del_timer_sync(&host->disable_timer);
+
+	if (!host->clk_enabled) {
+		glamo_engine_div_enable(host->pdata->core, GLAMO_ENGINE_MMC);
+		host->clk_enabled = 1;
+        printk("clk enabled\n");
+	}
+}
+
+static void glamo_mci_disable_timer(unsigned long data) {
+	struct glamo_mci_host *host = (struct glamo_mci_host *)data;
+	glamo_mci_clock_disable(host);
+}
+
+
+static void do_pio_read(struct glamo_mci_host *host, struct mmc_data *data)
 {
 	struct scatterlist *sg;
 	u16 __iomem *from_ptr = host->data_base;
-	struct mmc_data *data = host->mrq->data;
 	void *sg_pointer;
 
 	dev_dbg(&host->pdev->dev, "pio_read():\n");
@@ -159,14 +179,13 @@ static void do_pio_read(struct glamo_mci_host *host)
 	}
 
 	dev_dbg(&host->pdev->dev, "pio_read(): "
-	        "complete (no more data).\n");
+			"complete (no more data).\n");
 }
 
-static void do_pio_write(struct glamo_mci_host *host)
+static void do_pio_write(struct glamo_mci_host *host, struct mmc_data *data)
 {
 	struct scatterlist *sg;
 	u16 __iomem *to_ptr = host->data_base;
-	struct mmc_data *data = host->mrq->data;
 	void *sg_pointer;
 
 	dev_dbg(&host->pdev->dev, "pio_write():\n");
@@ -182,117 +201,41 @@ static void do_pio_write(struct glamo_mci_host *host)
 	dev_dbg(&host->pdev->dev, "pio_write(): complete\n");
 }
 
-static void glamo_mci_fix_card_div(struct glamo_mci_host *host, int div)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&host->pdata->core->lock, flags);
-
-	if (div < 0) {
-		/* stop clock - remove clock from divider input */
-		writew(readw(host->pdata->core->base +
-		     GLAMO_REG_CLOCK_GEN5_1) & (~GLAMO_CLOCK_GEN51_EN_DIV_TCLK),
-		     host->pdata->core->base + GLAMO_REG_CLOCK_GEN5_1);
-	} else {
-
-		if (host->force_slow_during_powerup)
-			div = host->clk_rate / sd_post_power_clock;
-		else if (host->pdata->glamo_mmc_use_slow &&
-		         host->pdata->glamo_mmc_use_slow())
-			div = div * sd_slow_ratio;
-
-		if (div > 255)
-			div = 255;
-		/*
-		 * set the nearest prescaler factor
-		 *
-		 * register shared with SCLK divisor -- no chance of race because
-		 * we don't use sensor interface
-		 */
-		writew((readw(host->pdata->core->base +
-		              GLAMO_REG_CLOCK_GEN8) & 0xff00) | div,
-		       host->pdata->core->base + GLAMO_REG_CLOCK_GEN8);
-		/* enable clock to divider input */
-		writew(readw(host->pdata->core->base +
-		             GLAMO_REG_CLOCK_GEN5_1) | GLAMO_CLOCK_GEN51_EN_DIV_TCLK,
-		       host->pdata->core->base + GLAMO_REG_CLOCK_GEN5_1);
-	}
-	spin_unlock_irqrestore(&host->pdata->core->lock, flags);
-	mdelay(5);
-}
-
 static int glamo_mci_set_card_clock(struct glamo_mci_host *host, int freq)
 {
-	int div = 0;
 	int real_rate = 0;
 
 	if (freq) {
-		/* Set clock */
-		for (div = 0; div < 255; div++) {
-			real_rate = host->clk_rate / (div + 1);
-			if (real_rate <= freq)
-				break;
-		}
-
-		host->clk_div = div;
-		glamo_mci_fix_card_div(host, div);
+		glamo_mci_clock_enable(host);
+		real_rate = glamo_engine_reclock(host->pdata->core, GLAMO_ENGINE_MMC, freq);
 	} else {
-		/* stop clock */
-		host->clk_div = 0xff;
-
-		if (!sd_idleclk && !host->force_slow_during_powerup)
-			/* clock off */
-			glamo_mci_fix_card_div(host, -1);
+		glamo_mci_clock_disable(host);
 	}
-	host->real_rate = real_rate;
+
 	return real_rate;
 }
 
+static void glamo_mci_request_done(struct glamo_mci_host *host, struct
+mmc_request *mrq) {
+	mod_timer(&host->disable_timer, jiffies + HZ / 16);
 
-static void glamo_mci_irq_worker(struct work_struct *work)
-{
-	struct glamo_mci_host *host =
-			    container_of(work, struct glamo_mci_host, irq_work);
-	struct mmc_command *cmd = host->mrq->cmd;
-
-	if (cmd->data->flags & MMC_DATA_READ) {
-		do_pio_read(host);
-	}
-
-	/* issue STOP if we have been given one to use */
-	if (host->mrq->stop) {
-		glamo_mci_send_command(host, host->mrq->stop);
-	}
-
-	if (!sd_idleclk && !host->force_slow_during_powerup)
-		/* clock off */
-		glamo_mci_fix_card_div(host, -1);
-
-	host->mrq = NULL;
-	mmc_request_done(host->mmc, cmd->mrq);
+	mmc_request_done(host->mmc, mrq);
 }
 
-static irqreturn_t glamo_mci_irq(int irq, void *devid)
+
+static void glamo_mci_irq_worker(struct work_struct *work)
 {
-	struct glamo_mci_host *host = (struct glamo_mci_host*)devid;
-	u16 status;
+	struct glamo_mci_host *host = container_of(work, struct glamo_mci_host,
+												irq_work);
 	struct mmc_command *cmd;
-	unsigned long flags;
+	uint16_t status;
 
-	if (host->suspending) { /* bad news, dangerous time */
-		dev_err(&host->pdev->dev, "****glamo_mci_irq before resumed\n");
-		goto leave;
-	}
+	if (!host->mrq || !host->mrq->cmd)
+		return;
 
-	if (!host->mrq)
-		goto leave;
 	cmd = host->mrq->cmd;
-	if (!cmd)
-		goto leave;
-
-	spin_lock_irqsave(&host->lock, flags);
 
-	status = readw(host->mmio_base + GLAMO_REG_MMC_RB_STAT1);
+	status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
 	dev_dbg(&host->pdev->dev, "status = 0x%04x\n", status);
 
 	/* we ignore a data timeout report if we are also told the data came */
@@ -300,36 +243,34 @@ static irqreturn_t glamo_mci_irq(int irq, void *devid)
 		status &= ~GLAMO_STAT1_MMC_DTOUT;
 
 	if (status & (GLAMO_STAT1_MMC_RTOUT |
-		      GLAMO_STAT1_MMC_DTOUT))
+			  GLAMO_STAT1_MMC_DTOUT))
 		cmd->error = -ETIMEDOUT;
 	if (status & (GLAMO_STAT1_MMC_BWERR |
-		      GLAMO_STAT1_MMC_BRERR))
+			  GLAMO_STAT1_MMC_BRERR))
 		cmd->error = -EILSEQ;
 	if (cmd->error) {
 		dev_info(&host->pdev->dev, "Error after cmd: 0x%x\n", status);
 		goto done;
 	}
 
-	/*
-	 * disable the initial slow start after first bulk transfer
-	 */
-	if (host->force_slow_during_powerup)
-		host->force_slow_during_powerup--;
-
-	/*
-	 * we perform the memcpy out of Glamo memory outside of IRQ context
-	 * so we don't block other interrupts
-	 */
-	schedule_work(&host->irq_work);
+	/* issue STOP if we have been given one to use */
+	if (host->mrq->stop)
+		glamo_mci_send_command(host, host->mrq->stop);
 
-	goto unlock;
+	if (cmd->data->flags & MMC_DATA_READ)
+		do_pio_read(host, cmd->data);
 
 done:
 	host->mrq = NULL;
-	mmc_request_done(host->mmc, cmd->mrq);
-unlock:
-	spin_unlock_irqrestore(&host->lock, flags);
-leave:
+	glamo_mci_request_done(host, cmd->mrq);
+}
+
+static irqreturn_t glamo_mci_irq(int irq, void *devid)
+{
+	struct glamo_mci_host *host = (struct glamo_mci_host*)devid;
+
+	schedule_work(&host->irq_work);
+
 	return IRQ_HANDLED;
 }
 
@@ -341,13 +282,12 @@ static void glamo_mci_send_command(struct glamo_mci_host *host,
 	unsigned int timeout = 1000000;
 	u16 * reg_resp = (u16 *)(host->mmio_base + GLAMO_REG_MMC_CMD_RSP1);
 	u16 status;
+	int triggers_int = 1;
 
 	/* if we can't do it, reject as busy */
-	if (!readw(host->mmio_base + GLAMO_REG_MMC_RB_STAT1) &
-	     GLAMO_STAT1_MMC_IDLE) {
-		host->mrq = NULL;
+	if (!glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1) &
+		 GLAMO_STAT1_MMC_IDLE) {
 		cmd->error = -EBUSY;
-		mmc_request_done(host->mmc, host->mrq);
 		return;
 	}
 
@@ -360,9 +300,9 @@ static void glamo_mci_send_command(struct glamo_mci_host *host,
 	u8a[5] = (crc7(0, u8a, 5) << 1) | 0x01; /* crc7 on first 5 bytes of packet */
 
 	/* issue the wire-order array including CRC in register order */
-	writew((u8a[4] << 8) | u8a[5], host->mmio_base + GLAMO_REG_MMC_CMD_REG1);
-	writew((u8a[2] << 8) | u8a[3], host->mmio_base + GLAMO_REG_MMC_CMD_REG2);
-	writew((u8a[0] << 8) | u8a[1], host->mmio_base + GLAMO_REG_MMC_CMD_REG3);
+	glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG1, ((u8a[4] << 8) | u8a[5]));
+	glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG2, ((u8a[2] << 8) | u8a[3]));
+	glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG3, ((u8a[0] << 8) | u8a[1]));
 
 	/* command index toggle */
 	fire |= (host->request_counter & 1) << 12;
@@ -440,27 +380,36 @@ static void glamo_mci_send_command(struct glamo_mci_host *host,
 			 /* multiblock with stop */
 			fire |= GLAMO_FIRE_MMC_CC_MBWS;
 		else
- 			 /* multiblock NO stop-- 'RESERVED'? */
+			 /* multiblock NO stop-- 'RESERVED'? */
 			fire |= GLAMO_FIRE_MMC_CC_MBWNS;
 		break;
 	case MMC_STOP_TRANSMISSION:
 		fire |= GLAMO_FIRE_MMC_CC_STOP; /* STOP */
+		triggers_int = 0;
 		break;
 	default:
 		fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
+		triggers_int = 0;
 		break;
 	}
+
+	if (triggers_int)
+		host->mrq = cmd->mrq;
+
 	/* always largest timeout */
-	writew(0xfff, host->mmio_base + GLAMO_REG_MMC_TIMEOUT);
+	glamo_reg_write(host, GLAMO_REG_MMC_TIMEOUT, 0xfff);
 
 	/* Generate interrupt on txfer */
-	glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC, ~0x3e,
-		   0x0800 | GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
-		   GLAMO_BASIC_MMC_EN_COMPL_INT | (sd_drive << 6));
+	glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC, 0xff36,
+			0x0800 |
+			GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
+			GLAMO_BASIC_MMC_EN_COMPL_INT |
+			GLAMO_BASIC_MMC_EN_DATA_PUPS |
+			GLAMO_BASIC_MMC_EN_CMD_PUP);
 
 	/* send the command out on the wire */
 	/* dev_info(&host->pdev->dev, "Using FIRE %04X\n", fire); */
-	writew(fire, host->mmio_base + GLAMO_REG_MMC_CMD_FIRE);
+	glamo_reg_write(host, GLAMO_REG_MMC_CMD_FIRE, fire);
 
 	/* we are deselecting card?  because it isn't going to ack then... */
 	if ((cmd->opcode == 7) && (cmd->arg == 0))
@@ -470,15 +419,14 @@ static void glamo_mci_send_command(struct glamo_mci_host *host,
 	 * we must spin until response is ready or timed out
 	 * -- we don't get interrupts unless there is a bulk rx
 	 */
-	udelay(5);
 	do
-		status = readw(host->mmio_base + GLAMO_REG_MMC_RB_STAT1);
+		status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
 	while (((((status >> 15) & 1) != (host->request_counter & 1)) ||
 		(!(status & (GLAMO_STAT1_MMC_RB_RRDY |
-			     GLAMO_STAT1_MMC_RTOUT |
-			     GLAMO_STAT1_MMC_DTOUT |
-			     GLAMO_STAT1_MMC_BWERR |
-			     GLAMO_STAT1_MMC_BRERR)))) && (timeout--));
+				 GLAMO_STAT1_MMC_RTOUT |
+				 GLAMO_STAT1_MMC_DTOUT |
+				 GLAMO_STAT1_MMC_BWERR |
+				 GLAMO_STAT1_MMC_BRERR)))) && (timeout--));
 
 	if ((status & (GLAMO_STAT1_MMC_RTOUT |
 				   GLAMO_STAT1_MMC_DTOUT)) ||
@@ -492,17 +440,17 @@ static void glamo_mci_send_command(struct glamo_mci_host *host,
 	if (cmd->flags & MMC_RSP_PRESENT) {
 		if (cmd->flags & MMC_RSP_136) {
 			cmd->resp[3] = readw(&reg_resp[0]) |
-			               (readw(&reg_resp[1]) << 16);
+						   (readw(&reg_resp[1]) << 16);
 			cmd->resp[2] = readw(&reg_resp[2]) |
-			               (readw(&reg_resp[3]) << 16);
+						   (readw(&reg_resp[3]) << 16);
 			cmd->resp[1] = readw(&reg_resp[4]) |
-			               (readw(&reg_resp[5]) << 16);
+						   (readw(&reg_resp[5]) << 16);
 			cmd->resp[0] = readw(&reg_resp[6]) |
-			               (readw(&reg_resp[7]) << 16);
+						   (readw(&reg_resp[7]) << 16);
 		} else {
 			cmd->resp[0] = (readw(&reg_resp[0]) >> 8) |
-			               (readw(&reg_resp[1]) << 8) |
-			               ((readw(&reg_resp[2])) << 24);
+						   (readw(&reg_resp[1]) << 8) |
+						   ((readw(&reg_resp[2])) << 24);
 		}
 	}
 }
@@ -511,28 +459,63 @@ static int glamo_mci_prepare_pio(struct glamo_mci_host *host,
 				 struct mmc_data *data)
 {
 	/* set up the block info */
-	writew(data->blksz, host->mmio_base + GLAMO_REG_MMC_DATBLKLEN);
-	writew(data->blocks, host->mmio_base + GLAMO_REG_MMC_DATBLKCNT);
-	dev_dbg(&host->pdev->dev, "(blksz=%d, count=%d)\n",
-				   data->blksz, data->blocks);
+	glamo_reg_write(host, GLAMO_REG_MMC_DATBLKLEN, data->blksz);
+	glamo_reg_write(host, GLAMO_REG_MMC_DATBLKCNT, data->blocks);
+
 	data->bytes_xfered = 0;
 
 	/* if write, prep the write into the shared RAM before the command */
 	if (data->flags & MMC_DATA_WRITE) {
-		do_pio_write(host);
+		do_pio_write(host, data);
+	}
+
+	dev_dbg(&host->pdev->dev, "(blksz=%d, count=%d)\n",
+				   data->blksz, data->blocks);
+	return 0;
+}
+
+static int glamo_mci_irq_poll(struct glamo_mci_host *host,
+				struct mmc_command *cmd)
+{
+	int timeout = 1000000;
+	/*
+	 * if the glamo INT# line isn't wired (*cough* it can happen)
+	 * I'm afraid we have to spin on the IRQ status bit and "be
+	 * our own INT# line"
+	 */
+	/*
+	 * we have faith we will get an "interrupt"...
+	 * but something insane like suspend problems can mean
+	 * we spin here forever, so we timeout after a LONG time
+	 */
+	while ((!(readw(host->pdata->core->base +
+		 GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) &&
+		   (timeout--));
+
+	if (timeout < 0) {
+		if (cmd->data->error)
+			cmd->data->error = -ETIMEDOUT;
+		dev_err(&host->pdev->dev, "Payload timeout\n");
+		return -ETIMEDOUT;
 	}
+	/* ack this interrupt source */
+	writew(GLAMO_IRQ_MMC, host->pdata->core->base +
+		   GLAMO_REG_IRQ_CLEAR);
+
+	/* yay we are an interrupt controller! -- call the ISR
+	 * it will stop clock to card
+	 */
+	glamo_mci_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
+
 	return 0;
 }
 
-static void glamo_mci_send_request(struct mmc_host *mmc)
+static void glamo_mci_send_request(struct mmc_host *mmc, struct mmc_request *mrq)
 {
 	struct glamo_mci_host *host = mmc_priv(mmc);
-	struct mmc_request *mrq = host->mrq;
 	struct mmc_command *cmd = mrq->cmd;
-	int timeout = 1000000;
 
 	host->request_counter++;
-	/* this guy has data to read/write? */
 	if (cmd->data) {
 		if(glamo_mci_prepare_pio(host, cmd->data)) {
 			cmd->data->error = -EIO;
@@ -545,11 +528,7 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
 		 cmd->opcode, cmd->arg, cmd->data, cmd->mrq->stop,
 		 cmd->flags);
 
-	/* resume requested clock rate
-	 * scale it down by sd_slow_ratio if platform requests it
-	 */
-	glamo_mci_fix_card_div(host, host->clk_div);
-
+	glamo_mci_clock_enable(host);
 	glamo_mci_send_command(host, cmd);
 
 	/*
@@ -558,6 +537,12 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
 	if (!cmd->data || cmd->error)
 		goto done;
 
+
+	if (!host->pdata->core->irq_works) {
+		if (glamo_mci_irq_poll(host, mrq->cmd))
+			goto done;
+	}
+
 	/*
 	 * Otherwise can can use the interrupt as async completion --
 	 * if there is read data coming, or we wait for write data to complete,
@@ -565,95 +550,30 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
 	 * will service it
 	 */
 	dev_dbg(&host->pdev->dev, "Waiting for payload data\n");
-	/*
-	 * if the glamo INT# line isn't wired (*cough* it can happen)
-	 * I'm afraid we have to spin on the IRQ status bit and "be
-	 * our own INT# line"
-	 */
-	if (!host->pdata->core->irq_works) {
-		/*
-		 * we have faith we will get an "interrupt"...
-		 * but something insane like suspend problems can mean
-		 * we spin here forever, so we timeout after a LONG time
-		 */
-		while ((!(readw(host->pdata->core->base +
-			 GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) &&
-		       (timeout--));
-
-		if (timeout < 0) {
-			if (cmd->data->error)
-				cmd->data->error = -ETIMEDOUT;
-			dev_err(&host->pdev->dev, "Payload timeout\n");
-			goto bail;
-		}
-		/* ack this interrupt source */
-		writew(GLAMO_IRQ_MMC, host->pdata->core->base +
-		       GLAMO_REG_IRQ_CLEAR);
-
-		/* yay we are an interrupt controller! -- call the ISR
-		 * it will stop clock to card
-		 */
-		glamo_mci_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
-	}
 	return;
 done:
-	host->mrq = NULL;
-	mmc_request_done(host->mmc, cmd->mrq);
-bail:
-	if (!sd_idleclk && !host->force_slow_during_powerup)
-		/* stop the clock to card */
-		glamo_mci_fix_card_div(host, -1);
+	glamo_mci_request_done(host, mrq);
 }
 
-static void glamo_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct glamo_mci_host *host = mmc_priv(mmc);
-
-	host->mrq = mrq;
-	glamo_mci_send_request(mmc);
-}
-
-static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
-	struct glamo_mci_host *host = mmc_priv(mmc);
-	int bus_width = 0;
-	int powering = 0;
+static void glamo_mci_set_power_mode(struct glamo_mci_host *host,
+				unsigned char power_mode) {
 	int ret;
 
-	if (host->suspending) {
-		dev_err(&host->pdev->dev, "IGNORING glamo_mci_set_ios while "
-								 "suspended\n");
+	if (power_mode == host->power_mode)
 		return;
-	}
 
-	/* Set power */
-	switch(ios->power_mode) {
+	switch(power_mode) {
 	case MMC_POWER_UP:
-		ret = regulator_enable(host->regulator);
-		if (ret)
-			dev_err(&host->pdev->dev, "Failed to enable regulator: %d\n", ret);
+		if (host->power_mode == MMC_POWER_OFF) {
+			ret = regulator_enable(host->regulator);
+			if (ret)
+				dev_err(&host->pdev->dev, "Failed to enable regulator: %d\n", ret);
+		}
 		break;
 	case MMC_POWER_ON:
-		/*
-		 * we should use very slow clock until first bulk
-		 * transfer completes OK
-		 */
-		host->force_slow_during_powerup = 1;
-
-		if (host->power_mode_current == MMC_POWER_OFF) {
-			glamo_engine_enable(host->pdata->core,
-							      GLAMO_ENGINE_MMC);
-			powering = 1;
-		}
 		break;
-
 	case MMC_POWER_OFF:
 	default:
-		if (host->power_mode_current == MMC_POWER_OFF)
-			break;
-		/* never want clocking with dead card */
-		glamo_mci_fix_card_div(host, -1);
-
 		glamo_engine_disable(host->pdata->core,
 				     GLAMO_ENGINE_MMC);
 
@@ -662,44 +582,50 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 			dev_warn(&host->pdev->dev, "Failed to disable regulator: %d\n", ret);
 		break;
 	}
-	host->power_mode_current = ios->power_mode;
+	host->power_mode = power_mode;
+}
 
-	if (host->vdd_current != ios->vdd) {
+static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct glamo_mci_host *host = mmc_priv(mmc);
+	int bus_width = 0;
+	int rate;
+	int sd_drive;
+	int ret;
+
+	/* Set power */
+	glamo_mci_set_power_mode(host, ios->power_mode);
+
+	if (host->vdd != ios->vdd) {
 		ret = mmc_regulator_set_ocr(host->regulator, ios->vdd);
 		if (ret)
 			dev_err(&host->pdev->dev, "Failed to set regulator voltage: %d\n", ret);
 		else
-			host->vdd_current = ios->vdd;
+			host->vdd = ios->vdd;
 	}
-	glamo_mci_set_card_clock(host, ios->clock);
-
-	/* after power-up, we are meant to give it >= 74 clocks so it can
-	 * initialize itself.  Doubt any modern cards need it but anyway...
-	 */
-	if (powering)
-		mdelay(1);
-
-	if (!sd_idleclk && !host->force_slow_during_powerup)
-		/* stop the clock to card, because we are idle until transfer */
-		glamo_mci_fix_card_div(host, -1);
+	rate = glamo_mci_set_card_clock(host, ios->clock);
 
 	if ((ios->power_mode == MMC_POWER_ON) ||
 	    (ios->power_mode == MMC_POWER_UP)) {
 		dev_info(&host->pdev->dev,
-			"powered (vdd = %d) clk: %lukHz div=%d (req: %ukHz). "
-			"Bus width=%d\n",(int)ios->vdd,
-			host->real_rate / 1000, (int)host->clk_div,
+			"powered (vdd = %hu) clk: %dkHz div=%hu (req: %ukHz). "
+			"Bus width=%d\n", ios->vdd,
+			rate / 1000, 0,
 			ios->clock / 1000, (int)ios->bus_width);
-	} else
+	} else {
 		dev_info(&host->pdev->dev, "glamo_mci_set_ios: power down.\n");
+	}
 
 	/* set bus width */
 	if (ios->bus_width == MMC_BUS_WIDTH_4)
 		bus_width = GLAMO_BASIC_MMC_EN_4BIT_DATA;
+
+	sd_drive = (rate * 4) / host->clk_rate;
+	if (sd_drive > 3)
+		sd_drive = 3;
+
 	glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC,
-					       GLAMO_BASIC_MMC_EN_4BIT_DATA |
-					       GLAMO_BASIC_MMC_EN_DR_STR0 |
-					       GLAMO_BASIC_MMC_EN_DR_STR1,
+					       GLAMO_BASIC_MMC_EN_4BIT_DATA | 0xb0,
 						   bus_width | sd_drive << 6);
 }
 
@@ -713,7 +639,7 @@ static int glamo_mci_get_ro(struct mmc_host *mmc)
 }
 
 static struct mmc_host_ops glamo_mci_ops = {
-	.request	= glamo_mci_request,
+	.request	= glamo_mci_send_request,
 	.set_ios	= glamo_mci_set_ios,
 	.get_ro		= glamo_mci_get_ro,
 };
@@ -736,9 +662,9 @@ static int glamo_mci_probe(struct platform_device *pdev)
 	host->mmc = mmc;
 	host->pdev = pdev;
 	host->pdata = pdev->dev.platform_data;
-	host->power_mode_current = MMC_POWER_OFF;
+	host->power_mode = MMC_POWER_OFF;
+	host->clk_enabled = 0;
 
-	spin_lock_init(&host->lock);
 	INIT_WORK(&host->irq_work, glamo_mci_irq_worker);
 
 	host->regulator = regulator_get(pdev->dev.parent, "SD_3V3");
@@ -810,9 +736,8 @@ static int glamo_mci_probe(struct platform_device *pdev)
 	}
 
 
-	host->vdd_current = 0;
-	host->clk_rate = 50000000; /* really it's 49152000 */
-	host->clk_div = 16;
+	host->vdd = 0;
+	host->clk_rate = glamo_pll_rate(host->pdata->core, GLAMO_PLL1);
 
 	/* explain our host controller capabilities */
 	mmc->ops       = &glamo_mci_ops;
@@ -821,7 +746,7 @@ static int glamo_mci_probe(struct platform_device *pdev)
 	                 MMC_CAP_MMC_HIGHSPEED |
 	                 MMC_CAP_SD_HIGHSPEED;
 	mmc->f_min     = host->clk_rate / 256;
-	mmc->f_max     = sd_max_clk;
+	mmc->f_max     = host->clk_rate;
 
 	mmc->max_blk_count = (1 << 16) - 1; /* GLAMO_REG_MMC_RB_BLKCNT */
 	mmc->max_blk_size  = (1 << 12) - 1; /* GLAMO_REG_MMC_RB_BLKLEN */
@@ -841,21 +766,24 @@ static int glamo_mci_probe(struct platform_device *pdev)
 	glamo_engine_enable(host->pdata->core, GLAMO_ENGINE_MMC);
 	glamo_engine_reset(host->pdata->core, GLAMO_ENGINE_MMC);
 
+	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS1,
+			(u16)(host->data_mem->start));
+	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS2,
+			(u16)(host->data_mem->start >> 16));
+
+	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS1,
+			(u16)(host->data_mem->start));
+	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS2,
+			(u16)(host->data_mem->start >> 16));
+
+	setup_timer(&host->disable_timer, glamo_mci_disable_timer,
+				(unsigned long)host);
+
 	if ((ret = mmc_add_host(mmc))) {
 		dev_err(&pdev->dev, "failed to add mmc host.\n");
 		goto probe_freeirq;
 	}
 
-	writew((u16)(host->data_mem->start),
-	       host->mmio_base + GLAMO_REG_MMC_WDATADS1);
-	writew((u16)((host->data_mem->start) >> 16),
-	       host->mmio_base + GLAMO_REG_MMC_WDATADS2);
-
-	writew((u16)host->data_mem->start, host->mmio_base +
-	       GLAMO_REG_MMC_RDATADS1);
-	writew((u16)(host->data_mem->start >> 16), host->mmio_base +
-	       GLAMO_REG_MMC_RDATADS2);
-
 	dev_info(&pdev->dev,"initialisation done.\n");
 	return 0;
 
@@ -904,51 +832,41 @@ static int glamo_mci_remove(struct platform_device *pdev)
 static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct mmc_host *mmc = platform_get_drvdata(dev);
-	struct glamo_mci_host 	*host = mmc_priv(mmc);
+	struct glamo_mci_host *host = mmc_priv(mmc);
 	int ret;
 
 	cancel_work_sync(&host->irq_work);
 
-	/*
-	 * possible workaround for SD corruption during suspend - resume
-	 * make sure the clock was running during suspend and consequently
-	 * resume
-	 */
-	glamo_mci_fix_card_div(host, host->clk_div);
-
-	/* we are going to do more commands to override this in
-	 * mmc_suspend_host(), so we need to change sd_idleclk for the
-	 * duration as well
-	 */
-	suspend_sd_idleclk = sd_idleclk;
-	sd_idleclk = 1;
-
 	ret = mmc_suspend_host(mmc, state);
-
-	host->suspending++;
+	glamo_mci_clock_enable(host);
 
 	return ret;
 }
 
-int glamo_mci_resume(struct platform_device *dev)
+static int glamo_mci_resume(struct platform_device *dev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(dev);
-	struct glamo_mci_host 	*host = mmc_priv(mmc);
+	struct glamo_mci_host *host = mmc_priv(mmc);
 	int ret;
 
-	sd_idleclk = 1;
+    glamo_engine_enable(host->pdata->core, GLAMO_ENGINE_MMC);
+    glamo_engine_reset(host->pdata->core, GLAMO_ENGINE_MMC);
 
-	glamo_engine_enable(host->pdata->core, GLAMO_ENGINE_MMC);
-	glamo_engine_reset(host->pdata->core, GLAMO_ENGINE_MMC);
-
-	host->suspending--;
+	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS1,
+			(u16)(host->data_mem->start));
+	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS2,
+			(u16)(host->data_mem->start >> 16));
 
-	ret = mmc_resume_host(mmc);
+	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS1,
+			(u16)(host->data_mem->start));
+	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS2,
+			(u16)(host->data_mem->start >> 16));
+    mdelay(5);
 
-	/* put sd_idleclk back to pre-suspend state */
-	sd_idleclk = suspend_sd_idleclk;
+	ret = mmc_resume_host(host->mmc);
+/*	glamo_mci_clock_disable(host);*/
 
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(glamo_mci_resume);
 
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.h b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.h
deleted file mode 100644
index 52c3fe3342..0000000000
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *  linux/drivers/mmc/host/glamo-mmc.h - GLAMO MCI driver
- *
- *  Copyright (C) 2007-2008 Openmoko, Inc, Andy Green <andy@openmoko.com>
- *   based on S3C MMC driver -->
- *  Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
- *
- * 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.
- */
-
-#include <linux/regulator/consumer.h>
-
-struct glamo_mci_host {
-	struct platform_device *pdev;
-	struct glamo_mmc_platform_data *pdata;
-	struct mmc_host        *mmc;
-	struct resource        *mmio_mem;
-	struct resource        *data_mem;
-	void __iomem           *mmio_base;
-	u16 __iomem            *data_base;
-
-	int suspending;
-
-	int          power_mode_current;
-	unsigned int vdd_current;
-
-	unsigned long clk_rate;
-	unsigned long clk_div;
-	unsigned long real_rate;
-
-	int force_slow_during_powerup;
-
-	struct mmc_request *mrq;
-	struct work_struct  irq_work;
-
-	spinlock_t lock;
-
-	unsigned int request_counter;
-
-	struct regulator *regulator;
-};