| Message ID | 20181213182714.26094-6-geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | pinctrl: sh-pfc: Fix config register descriptions | expand |
On Thu, Dec 13, 2018 at 07:27:04PM +0100, Geert Uytterhoeven wrote: > The SEL_I2C1 (MOD_SEL0[21:20]) field in Module Select Register 0 has a > width of 2 bits, i.e. it allows programming one out of 4 different > configurations. > However, the MOD_SEL0_21_20 macro contains 8 values instead of 4, > overflowing into the subsequent fields in the register, and thus breaking > the configuration of the latter. > > Fix this by dropping the bogus last 4 values, including the non-existent > SEL_I2C1_4 configuration. > > Fixes: 6d4036a1e3b3ac0f ("pinctrl: sh-pfc: Initial R8A77990 PFC support") > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a77990.c b/drivers/pinctrl/sh-pfc/pfc-r8a77990.c index d5b7a83e8b614370..e40908dc37e06264 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a77990.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a77990.c @@ -399,7 +399,7 @@ FM(IP12_31_28) IP12_31_28 FM(IP13_31_28) IP13_31_28 FM(IP14_31_28) IP14_31_28 FM #define MOD_SEL0_24 FM(SEL_HSCIF0_0) FM(SEL_HSCIF0_1) #define MOD_SEL0_23 FM(SEL_HSCIF1_0) FM(SEL_HSCIF1_1) #define MOD_SEL0_22 FM(SEL_HSCIF2_0) FM(SEL_HSCIF2_1) -#define MOD_SEL0_21_20 FM(SEL_I2C1_0) FM(SEL_I2C1_1) FM(SEL_I2C1_2) FM(SEL_I2C1_3) FM(SEL_I2C1_4) F_(0, 0) F_(0, 0) F_(0, 0) +#define MOD_SEL0_21_20 FM(SEL_I2C1_0) FM(SEL_I2C1_1) FM(SEL_I2C1_2) FM(SEL_I2C1_3) #define MOD_SEL0_19_18_17 FM(SEL_I2C2_0) FM(SEL_I2C2_1) FM(SEL_I2C2_2) FM(SEL_I2C2_3) FM(SEL_I2C2_4) F_(0, 0) F_(0, 0) F_(0, 0) #define MOD_SEL0_16 FM(SEL_NDFC_0) FM(SEL_NDFC_1) #define MOD_SEL0_15 FM(SEL_PWM0_0) FM(SEL_PWM0_1)
The SEL_I2C1 (MOD_SEL0[21:20]) field in Module Select Register 0 has a width of 2 bits, i.e. it allows programming one out of 4 different configurations. However, the MOD_SEL0_21_20 macro contains 8 values instead of 4, overflowing into the subsequent fields in the register, and thus breaking the configuration of the latter. Fix this by dropping the bogus last 4 values, including the non-existent SEL_I2C1_4 configuration. Fixes: 6d4036a1e3b3ac0f ("pinctrl: sh-pfc: Initial R8A77990 PFC support") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- drivers/pinctrl/sh-pfc/pfc-r8a77990.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)