X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fpower%2Faxp221.c;h=7bbaec87e455947788a66fcfedd665fb52217544;hb=97a8d010e029111e5711a45264a726bedbeb24c4;hp=826567a836b2284d9185533cc242659fb3e6be47;hpb=f3fba5665b066615a39d157a4a4970824695b91d;p=oweals%2Fu-boot.git

diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c
index 826567a836..7bbaec87e4 100644
--- a/drivers/power/axp221.c
+++ b/drivers/power/axp221.c
@@ -1,4 +1,10 @@
 /*
+ * AXP221 and AXP223 driver
+ *
+ * IMPORTANT when making changes to this file check that the registers
+ * used are the same for the axp221 and axp223.
+ *
+ * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
  * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
  *
  * SPDX-License-Identifier:	GPL-2.0+
@@ -6,7 +12,8 @@
 
 #include <common.h>
 #include <errno.h>
-#include <asm/arch/p2wi.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/pmic_bus.h>
 #include <axp221.h>
 
 static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
@@ -19,58 +26,94 @@ static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
 	return (mvolt - min) / div;
 }
 
-static int axp221_setbits(u8 reg, u8 bits)
+int axp221_set_dcdc1(unsigned int mvolt)
 {
 	int ret;
-	u8 val;
+	u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
 
-	ret = p2wi_read(reg, &val);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_DCDC1_EN);
+
+	ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	val |= bits;
-	return p2wi_write(reg, val);
-}
-
-int axp221_set_dcdc1(unsigned int mvolt)
-{
-	int ret;
-	u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
-
-	ret = p2wi_write(AXP221_DCDC1_CTRL, cfg);
+	ret = pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+			       AXP221_OUTPUT_CTRL2_DCDC1SW_EN);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL2,
-			      AXP221_OUTPUT_CTRL2_DCDC1_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_DCDC1_EN);
 }
 
 int axp221_set_dcdc2(unsigned int mvolt)
 {
+	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
 
-	return p2wi_write(AXP221_DCDC2_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_DCDC2_EN);
+
+	ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
+	if (ret)
+		return ret;
+
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_DCDC2_EN);
 }
 
 int axp221_set_dcdc3(unsigned int mvolt)
 {
+	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
 
-	return p2wi_write(AXP221_DCDC3_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_DCDC3_EN);
+
+	ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
+	if (ret)
+		return ret;
+
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_DCDC3_EN);
 }
 
 int axp221_set_dcdc4(unsigned int mvolt)
 {
+	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
 
-	return p2wi_write(AXP221_DCDC4_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_DCDC4_EN);
+
+	ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
+	if (ret)
+		return ret;
+
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_DCDC4_EN);
 }
 
 int axp221_set_dcdc5(unsigned int mvolt)
 {
+	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
 
-	return p2wi_write(AXP221_DCDC5_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_DCDC5_EN);
+
+	ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
+	if (ret)
+		return ret;
+
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_DCDC5_EN);
 }
 
 int axp221_set_dldo1(unsigned int mvolt)
@@ -78,12 +121,16 @@ int axp221_set_dldo1(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_DLDO1_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
+					AXP221_OUTPUT_CTRL2_DLDO1_EN);
+
+	ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL2,
-			      AXP221_OUTPUT_CTRL2_DLDO1_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+				AXP221_OUTPUT_CTRL2_DLDO1_EN);
 }
 
 int axp221_set_dldo2(unsigned int mvolt)
@@ -91,12 +138,16 @@ int axp221_set_dldo2(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_DLDO2_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
+					AXP221_OUTPUT_CTRL2_DLDO2_EN);
+
+	ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL2,
-			      AXP221_OUTPUT_CTRL2_DLDO2_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+				AXP221_OUTPUT_CTRL2_DLDO2_EN);
 }
 
 int axp221_set_dldo3(unsigned int mvolt)
@@ -104,12 +155,16 @@ int axp221_set_dldo3(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_DLDO3_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
+					AXP221_OUTPUT_CTRL2_DLDO3_EN);
+
+	ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL2,
-			      AXP221_OUTPUT_CTRL2_DLDO3_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+				AXP221_OUTPUT_CTRL2_DLDO3_EN);
 }
 
 int axp221_set_dldo4(unsigned int mvolt)
@@ -117,12 +172,16 @@ int axp221_set_dldo4(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_DLDO4_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
+					AXP221_OUTPUT_CTRL2_DLDO4_EN);
+
+	ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL2,
-			      AXP221_OUTPUT_CTRL2_DLDO4_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
+				AXP221_OUTPUT_CTRL2_DLDO4_EN);
 }
 
 int axp221_set_aldo1(unsigned int mvolt)
@@ -130,12 +189,16 @@ int axp221_set_aldo1(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_ALDO1_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_ALDO1_EN);
+
+	ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL1,
-			      AXP221_OUTPUT_CTRL1_ALDO1_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_ALDO1_EN);
 }
 
 int axp221_set_aldo2(unsigned int mvolt)
@@ -143,12 +206,16 @@ int axp221_set_aldo2(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_ALDO2_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
+					AXP221_OUTPUT_CTRL1_ALDO2_EN);
+
+	ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL1,
-			      AXP221_OUTPUT_CTRL1_ALDO2_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
+				AXP221_OUTPUT_CTRL1_ALDO2_EN);
 }
 
 int axp221_set_aldo3(unsigned int mvolt)
@@ -156,32 +223,73 @@ int axp221_set_aldo3(unsigned int mvolt)
 	int ret;
 	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
 
-	ret = p2wi_write(AXP221_ALDO3_CTRL, cfg);
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL3,
+					AXP221_OUTPUT_CTRL3_ALDO3_EN);
+
+	ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
 	if (ret)
 		return ret;
 
-	return axp221_setbits(AXP221_OUTPUT_CTRL3,
-			      AXP221_OUTPUT_CTRL3_ALDO3_EN);
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL3,
+				AXP221_OUTPUT_CTRL3_ALDO3_EN);
+}
+
+int axp221_set_eldo(int eldo_num, unsigned int mvolt)
+{
+	int ret;
+	u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
+	u8 addr, bits;
+
+	switch (eldo_num) {
+	case 3:
+		addr = AXP221_ELDO3_CTRL;
+		bits = AXP221_OUTPUT_CTRL2_ELDO3_EN;
+		break;
+	case 2:
+		addr = AXP221_ELDO2_CTRL;
+		bits = AXP221_OUTPUT_CTRL2_ELDO2_EN;
+		break;
+	case 1:
+		addr = AXP221_ELDO1_CTRL;
+		bits = AXP221_OUTPUT_CTRL2_ELDO1_EN;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (mvolt == 0)
+		return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2, bits);
+
+	ret = pmic_bus_write(addr, cfg);
+	if (ret)
+		return ret;
+
+	return pmic_bus_setbits(AXP221_OUTPUT_CTRL2, bits);
 }
 
 int axp221_init(void)
 {
+	/* This cannot be 0 because it is used in SPL before BSS is ready */
+	static int needs_init = 1;
 	u8 axp_chip_id;
 	int ret;
 
-	p2wi_init();
-	ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
-				       AXP221_INIT_DATA);
+	if (!needs_init)
+		return 0;
+
+	ret = pmic_bus_init();
 	if (ret)
 		return ret;
 
-	ret = p2wi_read(AXP221_CHIP_ID, &axp_chip_id);
+	ret = pmic_bus_read(AXP221_CHIP_ID, &axp_chip_id);
 	if (ret)
 		return ret;
 
 	if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17))
 		return -ENODEV;
 
+	needs_init = 0;
 	return 0;
 }
 
@@ -194,17 +302,17 @@ int axp221_get_sid(unsigned int *sid)
 	if (ret)
 		return ret;
 
-	ret = p2wi_write(AXP221_PAGE, 1);
+	ret = pmic_bus_write(AXP221_PAGE, 1);
 	if (ret)
 		return ret;
 
 	for (i = 0; i < 16; i++) {
-		ret = p2wi_read(AXP221_SID + i, &dest[i]);
+		ret = pmic_bus_read(AXP221_SID + i, &dest[i]);
 		if (ret)
 			return ret;
 	}
 
-	p2wi_write(AXP221_PAGE, 0);
+	pmic_bus_write(AXP221_PAGE, 0);
 
 	for (i = 0; i < 4; i++)
 		sid[i] = be32_to_cpu(sid[i]);