From patchwork Thu Apr 4 11:13:13 2013
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Piotr Wilczek
X-Patchwork-Id: 233712
X-Patchwork-Delegate: promsoft@gmail.com
Return-Path:
X-Original-To: incoming@patchwork.ozlabs.org
Delivered-To: patchwork-incoming@bilbo.ozlabs.org
Received: from theia.denx.de (theia.denx.de [85.214.87.163])
by ozlabs.org (Postfix) with ESMTP id D7C482C0090
for ;
Thu, 4 Apr 2013 22:13:54 +1100 (EST)
Received: from localhost (localhost [127.0.0.1])
by theia.denx.de (Postfix) with ESMTP id B0D924A054;
Thu, 4 Apr 2013 13:13:51 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at theia.denx.de
Received: from theia.denx.de ([127.0.0.1])
by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id S4imGoFu4Bdr; Thu, 4 Apr 2013 13:13:51 +0200 (CEST)
Received: from theia.denx.de (localhost [127.0.0.1])
by theia.denx.de (Postfix) with ESMTP id 219A94A03B;
Thu, 4 Apr 2013 13:13:43 +0200 (CEST)
Received: from localhost (localhost [127.0.0.1])
by theia.denx.de (Postfix) with ESMTP id 8D2E84A027
for ; Thu, 4 Apr 2013 13:13:39 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at theia.denx.de
Received: from theia.denx.de ([127.0.0.1])
by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id Vscwj3J1CYKA for ;
Thu, 4 Apr 2013 13:13:38 +0200 (CEST)
X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5
NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested)
Received: from mailout4.samsung.com (mailout4.samsung.com [203.254.224.34])
by theia.denx.de (Postfix) with ESMTP id B263E4A028
for ; Thu, 4 Apr 2013 13:13:37 +0200 (CEST)
Received: from epcpsbgm2.samsung.com (epcpsbgm2 [203.254.230.27])
by mailout4.samsung.com
(Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit
(built Nov
17 2011)) with ESMTP id <0MKQ00M019U9XA40@mailout4.samsung.com> for
u-boot@lists.denx.de; Thu, 04 Apr 2013 20:13:35 +0900 (KST)
X-AuditID: cbfee61b-b7f076d0000034b6-5c-515d605f2103
Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA)
with SMTP id 7C.F6.13494.F506D515;
Thu, 04 Apr 2013 20:13:35 +0900 (KST)
Received: from mcdsrvbld02.digital.local ([106.116.37.23])
by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01
(7.0.4.24.0) 64bit (built Nov 17 2011))
with ESMTPA id <0MKQ00A409UC4P40@mmp2.samsung.com>; Thu,
04 Apr 2013 20:13:34 +0900 (KST)
From: Piotr Wilczek
To: u-boot@lists.denx.de
Date: Thu, 04 Apr 2013 13:13:13 +0200
Message-id: <1365074001-5360-2-git-send-email-p.wilczek@samsung.com>
X-Mailer: git-send-email 1.7.10
In-reply-to: <1365074001-5360-1-git-send-email-p.wilczek@samsung.com>
References: <1365074001-5360-1-git-send-email-p.wilczek@samsung.com>
X-Brightmail-Tracker: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Cc: Piotr Wilczek ,
Kyungmin Park ,
Rajeshwari Shinde
Subject: [U-Boot] [PATCH v2 1/9] pmic:max77686: add function to set voltage
and mode
X-BeenThere: u-boot@lists.denx.de
X-Mailman-Version: 2.1.11
Precedence: list
List-Id: U-Boot discussion
List-Unsubscribe: ,
List-Archive:
List-Post:
List-Help:
List-Subscribe: ,
MIME-Version: 1.0
Sender: u-boot-bounces@lists.denx.de
Errors-To: u-boot-bounces@lists.denx.de
This patch add new functions to pmic max77686 to set voltage and mode.
Signed-off-by: Piotr Wilczek
Signed-off-by: Kyungmin Park
CC: Minkyu Kang
CC: Rajeshwari Shinde
Acked-by:Rajeshwari Shinde
---
Changes in v2:
- changed printf to debug
drivers/power/pmic/pmic_max77686.c | 186 ++++++++++++++++++++++++++++++++++++
include/power/max77686_pmic.h | 11 +++
2 files changed, 197 insertions(+)
diff --git a/drivers/power/pmic/pmic_max77686.c b/drivers/power/pmic/pmic_max77686.c
index 7fcb4c0..6b7a1cd 100644
--- a/drivers/power/pmic/pmic_max77686.c
+++ b/drivers/power/pmic/pmic_max77686.c
@@ -30,6 +30,192 @@
DECLARE_GLOBAL_DATA_PTR;
+static const char max77686_buck_addr[] = {
+ 0xff, 0x10, 0x12, 0x1c, 0x26, 0x30, 0x32, 0x34, 0x36, 0x38
+};
+
+static unsigned int max77686_ldo_volt2hex(int ldo, ulong uV)
+{
+ unsigned int hex = 0;
+ const unsigned int max_hex = 0x3f;
+
+ switch (ldo) {
+ case 1:
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 15:
+ hex = (uV - 800000) / 25000;
+ break;
+ default:
+ hex = (uV - 800000) / 50000;
+ }
+
+ if (0 <= hex && hex <= max_hex)
+ return hex;
+
+ debug("%s: %ld is wrong voltage value for LDO%d\n", __func__, uV, ldo);
+ return 0;
+}
+
+int max77686_set_ldo_voltage(struct pmic *p, int ldo, ulong uV)
+{
+ unsigned int val, ret, hex, adr, mask;
+
+ if (ldo < 1 && 26 < ldo) {
+ printf("%s: %d is wrong ldo number\n", __func__, ldo);
+ return -1;
+ }
+
+ adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
+ mask = 0x3f;
+ hex = max77686_ldo_volt2hex(ldo, uV);
+
+ if (!hex)
+ return -1;
+
+ ret = pmic_reg_read(p, adr, &val);
+ val &= ~mask;
+ val |= hex;
+ ret |= pmic_reg_write(p, adr, val);
+
+ return ret;
+}
+
+int max77686_set_ldo_mode(struct pmic *p, int ldo, char opmode)
+{
+ unsigned int val, ret, mask, adr, mode;
+
+ if (ldo < 1 && 26 < ldo) {
+ printf("%s: %d is wrong ldo number\n", __func__, ldo);
+ return -1;
+ }
+
+ adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
+
+ /* mask */
+ mask = 0xc0;
+
+ /* mode */
+ if (opmode == OPMODE_OFF) {
+ mode = 0x00;
+ } else if (opmode == OPMODE_STANDBY) {
+ switch (ldo) {
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 14:
+ case 15:
+ case 16:
+ mode = 0x40;
+ break;
+ default:
+ mode = 0xff;
+ }
+ } else if (opmode == OPMODE_LPM) {
+ mode = 0x80;
+ } else if (opmode == OPMODE_ON) {
+ mode = 0xc0;
+ } else {
+ mode = 0xff;
+ }
+
+ if (mode == 0xff) {
+ printf("%s: %d is not supported on LDO%d\n",
+ __func__, opmode, ldo);
+ return -1;
+ }
+
+ ret = pmic_reg_read(p, adr, &val);
+ val &= ~mask;
+ val |= mode;
+ ret |= pmic_reg_write(p, adr, val);
+
+ return ret;
+}
+
+int max77686_set_buck_mode(struct pmic *p, int buck, char opmode)
+{
+ unsigned int val, ret, mask, adr, size, mode;
+
+ size = sizeof(max77686_buck_addr) / sizeof(*max77686_buck_addr);
+ if (buck >= size) {
+ printf("%s: %d is wrong buck number\n", __func__, buck);
+ return -1;
+ }
+
+ adr = max77686_buck_addr[buck];
+
+ /* mask */
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ mask = 0x30;
+ break;
+ default:
+ mask = 0x03;
+ }
+
+ /* mode */
+ if (opmode == OPMODE_OFF) {
+ mode = 0x00;
+ } else if (opmode == OPMODE_STANDBY) {
+ switch (buck) {
+ case 1:
+ mode = 0x01;
+ break;
+ case 2:
+ case 3:
+ case 4:
+ mode = 0x10;
+ break;
+ default:
+ mode = 0xff;
+ }
+ } else if (opmode == OPMODE_LPM) {
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ mode = 0x20;
+ break;
+ default:
+ mode = 0xff;
+ }
+ } else if (opmode == OPMODE_ON) {
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ mode = 0x30;
+ break;
+ default:
+ mode = 0x03;
+ }
+ } else {
+ mode = 0xff;
+ }
+
+ if (mode == 0xff) {
+ printf("%s: %d is not supported on BUCK%d\n",
+ __func__, opmode, buck);
+ return -1;
+ }
+
+ ret = pmic_reg_read(p, adr, &val);
+ val &= ~mask;
+ val |= mode;
+ ret |= pmic_reg_write(p, adr, val);
+
+ return ret;
+}
+
int pmic_init(unsigned char bus)
{
static const char name[] = "MAX77686_PMIC";
diff --git a/include/power/max77686_pmic.h b/include/power/max77686_pmic.h
index fdc7ca9..ce58c02 100644
--- a/include/power/max77686_pmic.h
+++ b/include/power/max77686_pmic.h
@@ -155,6 +155,17 @@ enum {
EN_LDO = (0x3 << 6),
};
+enum {
+ OPMODE_OFF = 0,
+ OPMODE_STANDBY,
+ OPMODE_LPM,
+ OPMODE_ON,
+};
+
+int max77686_set_ldo_voltage(struct pmic *p, int ldo, ulong uV);
+int max77686_set_ldo_mode(struct pmic *p, int ldo, char opmode);
+int max77686_set_buck_mode(struct pmic *p, int buck, char opmode);
+
/* Buck1 1 volt value */
#define MAX77686_BUCK1OUT_1V 0x5
#define MAX77686_BUCK1CTRL_EN (3 << 0)