Patchwork [U-Boot,v5,01/26] pmic:i2c: Handle PMIC I2C transmission comprising of two bytes

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Submitter Łukasz Majewski
Date Nov. 5, 2012, 5:28 p.m.
Message ID <1352136508-14198-2-git-send-email-l.majewski@samsung.com>
Download mbox | patch
Permalink /patch/197227/
State Superseded
Delegated to: Minkyu Kang
Headers show

Comments

Łukasz Majewski - Nov. 5, 2012, 5:28 p.m.
This patch adds support for proper handling of a PMIC I2C transmission
comprising of two bytes.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
---
Changes for v2:
- None
Changes for v3:
- None
Changes for v4:
- None
Changes for v5:
- None
---
 drivers/misc/pmic_i2c.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

Patch

diff --git a/drivers/misc/pmic_i2c.c b/drivers/misc/pmic_i2c.c
index 95a3365..e74c372 100644
--- a/drivers/misc/pmic_i2c.c
+++ b/drivers/misc/pmic_i2c.c
@@ -44,6 +44,10 @@  int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
 		buf[1] = (val >> 8) & 0xff;
 		buf[2] = val & 0xff;
 		break;
+	case 2:
+		buf[0] = (val >> 8) & 0xff;
+		buf[1] = val & 0xff;
+		break;
 	case 1:
 		buf[0] = val & 0xff;
 		break;
@@ -73,6 +77,9 @@  int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
 	case 3:
 		ret_val = buf[0] << 16 | buf[1] << 8 | buf[2];
 		break;
+	case 2:
+		ret_val = buf[0] << 8 | buf[1];
+		break;
 	case 1:
 		ret_val = buf[0];
 		break;
@@ -88,7 +95,7 @@  int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
 int pmic_probe(struct pmic *p)
 {
 	I2C_SET_BUS(p->bus);
-	debug("PMIC:%s probed!\n", p->name);
+	debug("Bus: %d PMIC:%s probed!\n", p->bus, p->name);
 	if (i2c_probe(pmic_i2c_addr)) {
 		printf("Can't find PMIC:%s\n", p->name);
 		return -1;