mmc: dw_mmc: change the array of slots

It doesn't need to use the array of slots anymore.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 1b415da..8ed3c87 100644 (file)
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2563,8 +2563,7 @@ static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status)
 
 static void dw_mci_handle_cd(struct dw_mci *host)
 {
-       int i = 0;
-       struct dw_mci_slot *slot = host->slot[i];
+       struct dw_mci_slot *slot = host->slot;
 
        if (slot->mmc->ops->card_event)
                slot->mmc->ops->card_event(slot->mmc);
@@ -2576,8 +2575,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 {
        struct dw_mci *host = dev_id;
        u32 pending;
-       int i = 0;
-       struct dw_mci_slot *slot = host->slot[i];
+       struct dw_mci_slot *slot = host->slot;
 
        pending = mci_readl(host, MINTSTS); /* read-only mask reg */
 
@@ -2707,7 +2705,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
        slot->sdio_id = host->sdio_id0 + id;
        slot->mmc = mmc;
        slot->host = host;
-       host->slot[id] = slot;
+       host->slot = slot;
 
        mmc->ops = &dw_mci_ops;
        if (device_property_read_u32_array(host->dev, "clock-freq-min-max",
@@ -2807,7 +2805,7 @@ static void dw_mci_cleanup_slot(struct dw_mci_slot *slot, unsigned int id)
 {
        /* Debugfs stuff is cleaned up by mmc core */
        mmc_remove_host(slot->mmc);
-       slot->host->slot[id] = NULL;
+       slot->host->slot = NULL;
        mmc_free_host(slot->mmc);
 }
 
@@ -2998,14 +2996,13 @@ static void dw_mci_enable_cd(struct dw_mci *host)
 {
        unsigned long irqflags;
        u32 temp;
-       int i = 0;
        struct dw_mci_slot *slot;
 
        /*
         * No need for CD if all slots have a non-error GPIO
         * as well as broken card detection is found.
         */
-       slot = host->slot[i];
+       slot = host->slot;
        if (slot->mmc->caps & MMC_CAP_NEEDS_POLL)
                return;
 
@@ -3233,8 +3230,8 @@ void dw_mci_remove(struct dw_mci *host)
        int i = 0;
 
        dev_dbg(host->dev, "remove slot %d\n", i);
-       if (host->slot[i])
-               dw_mci_cleanup_slot(host->slot[i], i);
+       if (host->slot)
+               dw_mci_cleanup_slot(host->slot, i);
 
        mci_writel(host, RINTSTS, 0xFFFFFFFF);
        mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
@@ -3277,9 +3274,9 @@ EXPORT_SYMBOL(dw_mci_runtime_suspend);
 
 int dw_mci_runtime_resume(struct device *dev)
 {
-       int i = 0, ret = 0;
+       int ret = 0;
        struct dw_mci *host = dev_get_drvdata(dev);
-       struct dw_mci_slot *slot = host->slot[i];
+       struct dw_mci_slot *slot = host->slot;
 
        if (host->cur_slot &&
            (mmc_can_gpio_cd(host->cur_slot->mmc) ||

diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index ce34736..1ec8f40 100644 (file)
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -20,8 +20,6 @@
 #include <linux/reset.h>
 #include <linux/interrupt.h>
 
-#define MAX_MCI_SLOTS  2
-
 enum dw_mci_state {
        STATE_IDLE = 0,
        STATE_SENDING_CMD,
@@ -215,7 +213,7 @@ struct dw_mci {
        void                    *priv;
        struct clk              *biu_clk;
        struct clk              *ciu_clk;
-       struct dw_mci_slot      *slot[MAX_MCI_SLOTS];
+       struct dw_mci_slot      *slot;
 
        /* FIFO push and pull */
        int                     fifo_depth;