From e3f44f5c891da635123b734a056dd1275eb34d83 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Tue, 25 Jul 2017 08:30:12 -0600
Subject: dm: power: Convert as3722 to driver model

Convert this PMIC driver to driver model and fix up other users. The
regulator and GPIO functions are now handled by separate drivers.

Update nyan-big to work correct. Three boards will need to be updated by
the maintainers: apalis-tk1, cei-tk1-som. Also the TODO in the code re
as3722_sd_set_voltage() needs to be completed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>
---
 board/nvidia/jetson-tk1/jetson-tk1.c | 44 ++++++++++++++++++++++++++----------
 board/nvidia/nyan-big/nyan-big.c     | 22 ++++++++++--------
 2 files changed, 45 insertions(+), 21 deletions(-)

(limited to 'board/nvidia')

diff --git a/board/nvidia/jetson-tk1/jetson-tk1.c b/board/nvidia/jetson-tk1/jetson-tk1.c
index a66b710cdd..bd08a2eed4 100644
--- a/board/nvidia/jetson-tk1/jetson-tk1.c
+++ b/board/nvidia/jetson-tk1/jetson-tk1.c
@@ -6,7 +6,9 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <power/as3722.h>
+#include <power/pmic.h>
 
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
@@ -37,27 +39,45 @@ void pinmux_init(void)
 }
 
 #ifdef CONFIG_PCI_TEGRA
-int tegra_pcie_board_init(void)
+/* TODO: Convert to driver model */
+static int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
 {
-	struct udevice *pmic;
 	int err;
 
-	err = as3722_init(&pmic);
+	if (sd > 6)
+		return -EINVAL;
+
+	err = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
 	if (err) {
-		error("failed to initialize AS3722 PMIC: %d\n", err);
+		error("failed to update SD control register: %d", err);
 		return err;
 	}
 
-	err = as3722_sd_enable(pmic, 4);
-	if (err < 0) {
-		error("failed to enable SD4: %d\n", err);
-		return err;
+	return 0;
+}
+
+int tegra_pcie_board_init(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = uclass_get_device_by_driver(UCLASS_PMIC,
+					  DM_GET_DRIVER(pmic_as3722), &dev);
+	if (ret) {
+		debug("%s: Failed to find PMIC\n", __func__);
+		return ret;
 	}
 
-	err = as3722_sd_set_voltage(pmic, 4, 0x24);
-	if (err < 0) {
-		error("failed to set SD4 voltage: %d\n", err);
-		return err;
+	ret = as3722_sd_enable(dev, 4);
+	if (ret < 0) {
+		error("failed to enable SD4: %d\n", ret);
+		return ret;
+	}
+
+	ret = as3722_sd_set_voltage(dev, 4, 0x24);
+	if (ret < 0) {
+		error("failed to set SD4 voltage: %d\n", ret);
+		return ret;
 	}
 
 	return 0;
diff --git a/board/nvidia/nyan-big/nyan-big.c b/board/nvidia/nyan-big/nyan-big.c
index 8f68ae9fbe..54acf5418d 100644
--- a/board/nvidia/nyan-big/nyan-big.c
+++ b/board/nvidia/nyan-big/nyan-big.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <errno.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
@@ -46,20 +47,23 @@ int tegra_board_id(void)
 
 int tegra_lcd_pmic_init(int board_id)
 {
-	struct udevice *pmic;
+	struct udevice *dev;
 	int ret;
 
-	ret = as3722_get(&pmic);
-	if (ret)
-		return -ENOENT;
+	ret = uclass_get_device_by_driver(UCLASS_PMIC,
+					  DM_GET_DRIVER(pmic_as3722), &dev);
+	if (ret) {
+		debug("%s: Failed to find PMIC\n", __func__);
+		return ret;
+	}
 
 	if (board_id == 0)
-		as3722_write(pmic, 0x00, 0x3c);
+		pmic_reg_write(dev, 0x00, 0x3c);
 	else
-		as3722_write(pmic, 0x00, 0x50);
-	as3722_write(pmic, 0x12, 0x10);
-	as3722_write(pmic, 0x0c, 0x07);
-	as3722_write(pmic, 0x20, 0x10);
+		pmic_reg_write(dev, 0x00, 0x50);
+	pmic_reg_write(dev, 0x12, 0x10);
+	pmic_reg_write(dev, 0x0c, 0x07);
+	pmic_reg_write(dev, 0x20, 0x10);
 
 	return 0;
 }
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