diff options
| author | Stefan Agner <stefan@agner.ch> | 2014-09-06 16:25:04 (GMT) |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-09-23 09:45:47 (GMT) |
| commit | 3dac1918a4912cea9375e76cb3916b751cef22db (patch) | |
| tree | 7497cb27472c195901735c1b5e6fa926331bd72e /drivers/pinctrl/freescale/pinctrl-imx.h | |
| parent | 3ccc11f6b82c34646c8a4233278251d9e9e99390 (diff) | |
| download | linux-3dac1918a4912cea9375e76cb3916b751cef22db.tar.xz | |
pinctrl: imx: detect uninitialized pins
The pinctrl driver initialized the register offsets for the pins
with 0. On Vybrid an offset of 0 is a valid offset for the pinctrl
mux register. So far, this was solved using the ZERO_OFFSET_VALID
flag which allowed offsets of 0. However, this does not allow to
verify whether a pins struct imx_pmx_func was initialized or not.
Use signed offset values for register offsets and initialize those
with -1 in order to detect uninitialized offset values reliable.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/freescale/pinctrl-imx.h')
| -rw-r--r-- | drivers/pinctrl/freescale/pinctrl-imx.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/freescale/pinctrl-imx.h index db408b0..49e55d3 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.h +++ b/drivers/pinctrl/freescale/pinctrl-imx.h @@ -67,8 +67,8 @@ struct imx_pmx_func { * @conf_reg: config register offset */ struct imx_pin_reg { - u16 mux_reg; - u16 conf_reg; + s16 mux_reg; + s16 conf_reg; }; struct imx_pinctrl_soc_info { @@ -83,8 +83,7 @@ struct imx_pinctrl_soc_info { unsigned int flags; }; -#define ZERO_OFFSET_VALID 0x1 -#define SHARE_MUX_CONF_REG 0x2 +#define SHARE_MUX_CONF_REG 0x1 #define NO_MUX 0x0 #define NO_PAD 0x0 |