[PATCH 5.9 178/252] counter/ti-eqep: Fix regmap max_register

From: Greg Kroah-Hartman
Date: Mon Nov 23 2020 - 08:08:08 EST


From: David Lechner <david@xxxxxxxxxxxxxx>

[ Upstream commit 271b339236e1c0e6448bc1cafeaedcb529324bf0 ]

The values given were the offset of the register after the last
register instead of the actual last register in each range. Fix
by using the correct last register of each range.

Fixes: f213729f6796 ("counter: new TI eQEP driver")
Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
Acked-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
Link: https://lore.kernel.org/r/20201025165122.607866-1-david@xxxxxxxxxxxxxx
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/counter/ti-eqep.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/counter/ti-eqep.c b/drivers/counter/ti-eqep.c
index 1ff07faef27f3..5d6470968d2cd 100644
--- a/drivers/counter/ti-eqep.c
+++ b/drivers/counter/ti-eqep.c
@@ -368,7 +368,7 @@ static const struct regmap_config ti_eqep_regmap32_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
- .max_register = 0x24,
+ .max_register = QUPRD,
};

static const struct regmap_config ti_eqep_regmap16_config = {
@@ -376,7 +376,7 @@ static const struct regmap_config ti_eqep_regmap16_config = {
.reg_bits = 16,
.val_bits = 16,
.reg_stride = 2,
- .max_register = 0x1e,
+ .max_register = QCPRDLAT,
};

static int ti_eqep_probe(struct platform_device *pdev)
--
2.27.0