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| author | Dong Aisheng <aisheng.dong@nxp.com> | 2017-07-25 21:41:55 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-08-14 15:01:01 +0200 |
| commit | 3be6f65102a859d0a4b1b6448df8f4214f3d45ae (patch) | |
| tree | b57f2697a8168ab245e6febce4f8b8b1e7f167b5 /drivers/pinctrl/freescale/pinctrl-vf610.c | |
| parent | a5c771e6cbdbe026d933c28a7705f6246bac7e64 (diff) | |
| download | linux-3be6f65102a859d0a4b1b6448df8f4214f3d45ae.tar.gz linux-3be6f65102a859d0a4b1b6448df8f4214f3d45ae.tar.bz2 linux-3be6f65102a859d0a4b1b6448df8f4214f3d45ae.zip | |
pinctrl: imx: make imx_pmx_ops.gpio_set_direction platform specific callbacks
Various IMX platforms may have different imx_pmx_ops.gpio_set_direction
implementations, so let's make it platform specific callbacks instead of
the fixed common one.
Currently only VF610 platform implements it. No function level changes.
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/freescale/pinctrl-vf610.c')
| -rw-r--r-- | drivers/pinctrl/freescale/pinctrl-vf610.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-vf610.c b/drivers/pinctrl/freescale/pinctrl-vf610.c index 3bd85564d1e4..ac18bb6d6d5e 100644 --- a/drivers/pinctrl/freescale/pinctrl-vf610.c +++ b/drivers/pinctrl/freescale/pinctrl-vf610.c @@ -295,10 +295,35 @@ static const struct pinctrl_pin_desc vf610_pinctrl_pads[] = { IMX_PINCTRL_PIN(VF610_PAD_PTA7), }; +static int vf610_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned offset, bool input) +{ + struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); + struct imx_pinctrl_soc_info *info = ipctl->info; + const struct imx_pin_reg *pin_reg; + u32 reg; + + pin_reg = &info->pin_regs[offset]; + if (pin_reg->mux_reg == -1) + return -EINVAL; + + /* IBE always enabled allows us to read the value "on the wire" */ + reg = readl(ipctl->base + pin_reg->mux_reg); + if (input) + reg &= ~0x2; + else + reg |= 0x2; + writel(reg, ipctl->base + pin_reg->mux_reg); + + return 0; +} + static struct imx_pinctrl_soc_info vf610_pinctrl_info = { .pins = vf610_pinctrl_pads, .npins = ARRAY_SIZE(vf610_pinctrl_pads), .flags = SHARE_MUX_CONF_REG | ZERO_OFFSET_VALID, + .gpio_set_direction = vf610_pmx_gpio_set_direction, .mux_mask = 0x700000, .mux_shift = 20, }; |