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[U-Boot,v3,4/9] power: axp209: Define the chip version mask

Message ID 4fa8e8327308d8111aed87a3dc493bc6c3a58799.1542823428.git-series.plaes@plaes.org
State Accepted
Commit f5eebc792559d33ddf973f640f7570d042e3bbe8
Delegated to: Jagannadha Sutradharudu Teki
Headers show
Series Stop AXP from crashing when enabling LDO3 | expand

Commit Message

Priit Laes Nov. 21, 2018, 6:05 p.m. UTC 
From: Olliver Schinagl <oliver@schinagl.nl>

Use a define for the chip version mask on the axp209.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
 drivers/power/axp209.c | 5 +----
 include/axp209.h       | 2 ++
 2 files changed, 3 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/power/axp209.c b/drivers/power/axp209.c
index 6de5ec6..e13c762 100644
--- a/drivers/power/axp209.c
+++ b/drivers/power/axp209.c
@@ -153,10 +153,7 @@  int axp_init(void)
 	if (rc)
 		return rc;
 
-	/* Low 4 bits is chip version */
-	ver &= 0x0f;
-
-	if (ver != 0x1)
+	if ((ver & AXP209_CHIP_VERSION_MASK) != 0x1)
 		return -EINVAL;
 
 	/* Mask all interrupts */
diff --git a/include/axp209.h b/include/axp209.h
index 3a4fc28..43e3873 100644
--- a/include/axp209.h
+++ b/include/axp209.h
@@ -25,6 +25,8 @@  enum axp209_reg {
 #define AXP209_POWER_STATUS_ON_BY_DC	BIT(0)
 #define AXP209_POWER_STATUS_VBUS_USABLE	BIT(4)
 
+#define AXP209_CHIP_VERSION_MASK	0x0f
+
 #define AXP209_OUTPUT_CTRL_EXTEN	BIT(0)
 #define AXP209_OUTPUT_CTRL_DCDC3	BIT(1)
 #define AXP209_OUTPUT_CTRL_LDO2		BIT(2)