mfd: Use macros instead of some constant magic numbers for menelaus

This patch is originally done by Carlos Eduardo Aguiar. Original fix is
commit 3305829b2816072b9c8ed01374b205ae4de74027 in
git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git

Author modified the fix for mainline version of menelaus.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c
index e02b57423ac439edc34d3f27644bf241d13be4e1..4ba85bbdb4c12b60bdb6944223d4a467626f7c3e 100644 (file)
--- a/drivers/mfd/menelaus.c
+++ b/drivers/mfd/menelaus.c
@@ -128,6 +128,39 @@
 #define MENELAUS_RESERVED14_IRQ                14      /* Reserved */
 #define MENELAUS_RESERVED15_IRQ                15      /* Reserved */
 
+/* VCORE_CTRL1 register */
+#define VCORE_CTRL1_BYP_COMP           (1 << 5)
+#define VCORE_CTRL1_HW_NSW             (1 << 7)
+
+/* GPIO_CTRL register */
+#define GPIO_CTRL_SLOTSELEN            (1 << 5)
+#define GPIO_CTRL_SLPCTLEN             (1 << 6)
+#define GPIO1_DIR_INPUT                        (1 << 0)
+#define GPIO2_DIR_INPUT                        (1 << 1)
+#define GPIO3_DIR_INPUT                        (1 << 2)
+
+/* MCT_CTRL1 register */
+#define MCT_CTRL1_S1_CMD_OD            (1 << 2)
+#define MCT_CTRL1_S2_CMD_OD            (1 << 3)
+
+/* MCT_CTRL2 register */
+#define MCT_CTRL2_VS2_SEL_D0           (1 << 0)
+#define MCT_CTRL2_VS2_SEL_D1           (1 << 1)
+#define MCT_CTRL2_S1CD_BUFEN           (1 << 4)
+#define MCT_CTRL2_S2CD_BUFEN           (1 << 5)
+#define MCT_CTRL2_S1CD_DBEN            (1 << 6)
+#define MCT_CTRL2_S2CD_BEN             (1 << 7)
+
+/* MCT_CTRL3 register */
+#define MCT_CTRL3_SLOT1_EN             (1 << 0)
+#define MCT_CTRL3_SLOT2_EN             (1 << 1)
+#define MCT_CTRL3_S1_AUTO_EN           (1 << 2)
+#define MCT_CTRL3_S2_AUTO_EN           (1 << 3)
+
+/* MCT_PIN_ST register */
+#define MCT_PIN_ST_S1_CD_ST            (1 << 0)
+#define MCT_PIN_ST_S2_CD_ST            (1 << 1)
+
 static void menelaus_work(struct work_struct *_menelaus);
 
 struct menelaus_chip {
@@ -249,10 +282,10 @@ static void menelaus_mmc_cd_work(struct menelaus_chip *menelaus_hw)
                return;
 
        if (!(reg & 0x1))
-               card_mask |= (1 << 0);
+               card_mask |= MCT_PIN_ST_S1_CD_ST;
 
        if (!(reg & 0x2))
-               card_mask |= (1 << 1);
+               card_mask |= MCT_PIN_ST_S2_CD_ST;
 
        if (menelaus_hw->mmc_callback)
                menelaus_hw->mmc_callback(menelaus_hw->mmc_callback_data,
@@ -277,14 +310,14 @@ int menelaus_set_mmc_opendrain(int slot, int enable)
        val = ret;
        if (slot == 1) {
                if (enable)
-                       val |= 1 << 2;
+                       val |= MCT_CTRL1_S1_CMD_OD;
                else
-                       val &= ~(1 << 2);
+                       val &= ~MCT_CTRL1_S1_CMD_OD;
        } else {
                if (enable)
-                       val |= 1 << 3;
+                       val |= MCT_CTRL1_S2_CMD_OD;
                else
-                       val &= ~(1 << 3);
+                       val &= ~MCT_CTRL1_S2_CMD_OD;
        }
        ret = menelaus_write_reg(MENELAUS_MCT_CTRL1, val);
        mutex_unlock(&the_menelaus->lock);
@@ -301,11 +334,11 @@ int menelaus_set_slot_sel(int enable)
        ret = menelaus_read_reg(MENELAUS_GPIO_CTRL);
        if (ret < 0)
                goto out;
-       ret |= 0x02;
+       ret |= GPIO2_DIR_INPUT;
        if (enable)
-               ret |= 1 << 5;
+               ret |= GPIO_CTRL_SLOTSELEN;
        else
-               ret &= ~(1 << 5);
+               ret &= ~GPIO_CTRL_SLOTSELEN;
        ret = menelaus_write_reg(MENELAUS_GPIO_CTRL, ret);
 out:
        mutex_unlock(&the_menelaus->lock);
@@ -330,14 +363,14 @@ int menelaus_set_mmc_slot(int slot, int enable, int power, int cd_en)
        val = ret;
        if (slot == 1) {
                if (cd_en)
-                       val |= (1 << 4) | (1 << 6);
+                       val |= MCT_CTRL2_S1CD_BUFEN | MCT_CTRL2_S1CD_DBEN;
                else
-                       val &= ~((1 << 4) | (1 << 6));
+                       val &= ~(MCT_CTRL2_S1CD_BUFEN | MCT_CTRL2_S1CD_DBEN);
        } else {
                if (cd_en)
-                       val |= (1 << 5) | (1 << 7);
+                       val |= MCT_CTRL2_S2CD_BUFEN | MCT_CTRL2_S2CD_BEN;
                else
-                       val &= ~((1 << 5) | (1 << 7));
+                       val &= ~(MCT_CTRL2_S2CD_BUFEN | MCT_CTRL2_S2CD_BEN);
        }
        ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, val);
        if (ret < 0)
@@ -349,25 +382,25 @@ int menelaus_set_mmc_slot(int slot, int enable, int power, int cd_en)
        val = ret;
        if (slot == 1) {
                if (enable)
-                       val |= 1 << 0;
+                       val |= MCT_CTRL3_SLOT1_EN;
                else
-                       val &= ~(1 << 0);
+                       val &= ~MCT_CTRL3_SLOT1_EN;
        } else {
                int b;
 
                if (enable)
-                       val |= 1 << 1;
+                       val |= MCT_CTRL3_SLOT2_EN;
                else
-                       val &= ~(1 << 1);
+                       val &= ~MCT_CTRL3_SLOT2_EN;
                b = menelaus_read_reg(MENELAUS_MCT_CTRL2);
-               b &= ~0x03;
+               b &= ~(MCT_CTRL2_VS2_SEL_D0 | MCT_CTRL2_VS2_SEL_D1);
                b |= power;
                ret = menelaus_write_reg(MENELAUS_MCT_CTRL2, b);
                if (ret < 0)
                        goto out;
        }
        /* Disable autonomous shutdown */
-       val &= ~(0x03 << 2);
+       val &= ~(MCT_CTRL3_S1_AUTO_EN | MCT_CTRL3_S2_AUTO_EN);
        ret = menelaus_write_reg(MENELAUS_MCT_CTRL3, val);
 out:
        mutex_unlock(&the_menelaus->lock);
@@ -552,7 +585,7 @@ int menelaus_set_vcore_hw(unsigned int roof_mV, unsigned int floor_mV)
        if (!the_menelaus->vcore_hw_mode) {
                val = menelaus_read_reg(MENELAUS_VCORE_CTRL1);
                /* HW mode, turn OFF byte comparator */
-               val |= ((1 << 7) | (1 << 5));
+               val |= (VCORE_CTRL1_HW_NSW | VCORE_CTRL1_BYP_COMP);
                ret = menelaus_write_reg(MENELAUS_VCORE_CTRL1, val);
                the_menelaus->vcore_hw_mode = 1;
        }
@@ -749,7 +782,7 @@ int menelaus_set_regulator_sleep(int enable, u32 val)
        ret = menelaus_read_reg(MENELAUS_GPIO_CTRL);
        if (ret < 0)
                goto out;
-       t = ((1 << 6) | 0x04);
+       t = (GPIO_CTRL_SLPCTLEN | GPIO3_DIR_INPUT);
        if (enable)
                ret |= t;
        else