Add symbols for hard-coded values of BUCK_RAMP field in DVS_RAMP
register. This simplifies a little the code as register update is called
only once.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/regulator/s5m8767.c | 22 ++++++++++------------
include/linux/mfd/samsung/s5m8767.h | 15 +++++++++++++++
2 files changed, 25 insertions(+), 12 deletions(-)
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 397917611ecd..10b4b6a5b08e 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -881,31 +881,29 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
if (s5m8767->buck2_ramp || s5m8767->buck3_ramp
|| s5m8767->buck4_ramp) {
+ unsigned int val;
switch (s5m8767->ramp_delay) {
case 5:
- sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
- 0x40, 0xf0);
+ val = S5M8767_DVS_BUCK_RAMP_5;
break;
case 10:
- sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
- 0x90, 0xf0);
+ val = S5M8767_DVS_BUCK_RAMP_10;
break;
case 25:
- sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
- 0xd0, 0xf0);
+ val = S5M8767_DVS_BUCK_RAMP_25;
break;
case 50:
- sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
- 0xe0, 0xf0);
+ val = S5M8767_DVS_BUCK_RAMP_50;
break;
case 100:
- sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
- 0xf0, 0xf0);
+ val = S5M8767_DVS_BUCK_RAMP_100;
break;
default:
- sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
- 0x90, 0xf0);
+ val = S5M8767_DVS_BUCK_RAMP_10;
}
+ sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ val << S5M8767_DVS_BUCK_RAMP_SHIFT,
+ S5M8767_DVS_BUCK_RAMP_MASK);
}
for (i = 0; i < pdata->num_regulators; i++) {
diff --git a/include/linux/mfd/samsung/s5m8767.h b/include/linux/mfd/samsung/s5m8767.h
index 9198377ee859..2ab0b0f03641 100644
--- a/include/linux/mfd/samsung/s5m8767.h
+++ b/include/linux/mfd/samsung/s5m8767.h
@@ -186,4 +186,19 @@ enum s5m8767_regulators {
#define S5M8767_ENCTRL_SHIFT 6
#define S5M8767_ENCTRL_MASK (0x3 << S5M8767_ENCTRL_SHIFT)
+/*
+ * Values for BUCK_RAMP field in DVS_RAMP register, matching raw values
+ * in mV/us.
+ */
+enum s5m8767_dvs_buck_ramp_values {
+ S5M8767_DVS_BUCK_RAMP_5 = 0x4,
+ S5M8767_DVS_BUCK_RAMP_10 = 0x9,
+ S5M8767_DVS_BUCK_RAMP_12_5 = 0xb,
+ S5M8767_DVS_BUCK_RAMP_25 = 0xd,
+ S5M8767_DVS_BUCK_RAMP_50 = 0xe,
+ S5M8767_DVS_BUCK_RAMP_100 = 0xf,
+};
+#define S5M8767_DVS_BUCK_RAMP_SHIFT 4
+#define S5M8767_DVS_BUCK_RAMP_MASK (0xf << S5M8767_DVS_BUCK_RAMP_SHIFT)
+
#endif /* __LINUX_MFD_S5M8767_H */
--
1.7.9.5
--
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