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Subject[PATCH 2/2] pinctrl: Use new GPIO_LINE_DIRECTION
Use newly added GPIO defines GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT instead of using hard-coded 1 and 0.

Main benefit is to make it easier to see which values mean IN and which
OUT. As a side effect this helps GPIO framework to change the direction
defines to something else if ever needed.

Please note that return value from get_direction call on
pinctrl-axp209 driver was changed. Previously pinctrl-axp209 might have
returned value 2 for direction INPUT.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/pinctrl/bcm/pinctrl-bcm2835.c | 5 ++++-
drivers/pinctrl/bcm/pinctrl-iproc-gpio.c | 5 ++++-
drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 5 ++++-
drivers/pinctrl/mediatek/pinctrl-paris.c | 5 ++++-
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 5 ++++-
drivers/pinctrl/nomadik/pinctrl-nomadik.c | 7 +++++--
drivers/pinctrl/pinctrl-amd.c | 5 ++++-
drivers/pinctrl/pinctrl-at91.c | 5 ++++-
drivers/pinctrl/pinctrl-axp209.c | 7 +++++--
drivers/pinctrl/pinctrl-ingenic.c | 14 ++++++++++----
drivers/pinctrl/pinctrl-ocelot.c | 5 ++++-
drivers/pinctrl/pinctrl-oxnas.c | 5 ++++-
drivers/pinctrl/pinctrl-pic32.c | 5 ++++-
drivers/pinctrl/pinctrl-pistachio.c | 5 ++++-
drivers/pinctrl/pinctrl-rk805.c | 7 +++++--
drivers/pinctrl/pinctrl-rockchip.c | 5 ++++-
drivers/pinctrl/pinctrl-rza1.c | 5 ++++-
drivers/pinctrl/pinctrl-rza2.c | 6 +++---
drivers/pinctrl/pinctrl-st.c | 14 +++++++++++---
drivers/pinctrl/pinctrl-stmfx.c | 17 ++++++++++++++---
drivers/pinctrl/pinctrl-sx150x.c | 9 ++++++---
drivers/pinctrl/qcom/pinctrl-msm.c | 4 ++--
drivers/pinctrl/stm32/pinctrl-stm32.c | 4 ++--
drivers/pinctrl/vt8500/pinctrl-wmt.c | 6 ++++--
24 files changed, 119 insertions(+), 41 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 0de1a3a96984..d3294964bb4e 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -322,7 +322,10 @@ static int bcm2835_gpio_get_direction(struct gpio_chip *chip, unsigned int offse
if (fsel > BCM2835_FSEL_GPIO_OUT)
return -EINVAL;

- return (fsel == BCM2835_FSEL_GPIO_IN);
+ if (fsel == BCM2835_FSEL_GPIO_IN)
+ return GPIO_LINE_DIRECTION_IN;
+
+ return GPIO_LINE_DIRECTION_OUT;
}

static void bcm2835_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
diff --git a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
index 42f7ab383ad9..3a0a9735ebd4 100644
--- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
+++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c
@@ -357,7 +357,10 @@ static int iproc_gpio_get_direction(struct gpio_chip *gc, unsigned int gpio)
unsigned int offset = IPROC_GPIO_REG(gpio, IPROC_GPIO_OUT_EN_OFFSET);
unsigned int shift = IPROC_GPIO_SHIFT(gpio);

- return !(readl(chip->base + offset) & BIT(shift));
+ if (readl(chip->base + offset) & BIT(shift))
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static void iproc_gpio_set(struct gpio_chip *gc, unsigned gpio, int val)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 53f52b9a0acd..4c11217e7d25 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -804,7 +804,10 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
pctl->devdata->spec_dir_set(&reg_addr, offset);

regmap_read(pctl->regmap1, reg_addr, &read_val);
- return !(read_val & bit);
+ if (read_val & bit)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int mtk_gpio_get(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index 923264d0e9ef..d70bb3aec2c9 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -699,7 +699,10 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
if (err)
return err;

- return !value;
+ if (value)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int mtk_gpio_get(struct gpio_chip *chip, unsigned int gpio)
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index f2f5fcd9a237..73e41515d978 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -403,7 +403,10 @@ static int armada_37xx_gpio_get_direction(struct gpio_chip *chip,
mask = BIT(offset);
regmap_read(info->regmap, reg, &val);

- return !(val & mask);
+ if (val & mask)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int armada_37xx_gpio_direction_output(struct gpio_chip *chip,
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 2a8190b11d10..21f0e044ef2d 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -850,11 +850,14 @@ static int nmk_gpio_get_dir(struct gpio_chip *chip, unsigned offset)

clk_enable(nmk_chip->clk);

- dir = !(readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset));
+ dir = readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset);

clk_disable(nmk_chip->clk);

- return dir;
+ if (dir)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 2c61141519f8..9331a6b84acd 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -46,7 +46,10 @@ static int amd_gpio_get_direction(struct gpio_chip *gc, unsigned offset)
pin_reg = readl(gpio_dev->base + offset * 4);
raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);

- return !(pin_reg & BIT(OUTPUT_ENABLE_OFF));
+ if (pin_reg & BIT(OUTPUT_ENABLE_OFF))
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int amd_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index d6e7e9f0ddec..a3444c638337 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1414,7 +1414,10 @@ static int at91_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
u32 osr;

osr = readl_relaxed(pio + PIO_OSR);
- return !(osr & mask);
+ if (osr & mask)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int at91_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/pinctrl/pinctrl-axp209.c b/drivers/pinctrl/pinctrl-axp209.c
index be5b645815e5..207cbae3a7bf 100644
--- a/drivers/pinctrl/pinctrl-axp209.c
+++ b/drivers/pinctrl/pinctrl-axp209.c
@@ -149,13 +149,16 @@ static int axp20x_gpio_get_direction(struct gpio_chip *chip,
* going to change the value soon anyway. Default to output.
*/
if ((val & AXP20X_GPIO_FUNCTIONS) > 2)
- return 0;
+ return GPIO_LINE_DIRECTION_OUT;

/*
* The GPIO directions are the three lowest values.
* 2 is input, 0 and 1 are output
*/
- return val & 2;
+ if (val & 2)
+ return GPIO_LINE_DIRECTION_IN;
+
+ return GPIO_LINE_DIRECTION_OUT;
}

static int axp20x_gpio_output(struct gpio_chip *chip, unsigned int offset,
diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 6e2683016c1f..faee2f33792b 100644
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -1643,13 +1643,19 @@ static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
struct ingenic_pinctrl *jzpc = jzgc->jzpc;
unsigned int pin = gc->base + offset;

- if (jzpc->version >= ID_JZ4760)
- return ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PAT1);
+ if (jzpc->version >= ID_JZ4760) {
+ if (ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PAT1))
+ return GPIO_LINE_DIRECTION_IN;
+ return GPIO_LINE_DIRECTION_OUT;
+ }

if (ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_SELECT))
- return true;
+ return GPIO_LINE_DIRECTION_IN;
+
+ if (ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_DIR))
+ return GPIO_LINE_DIRECTION_OUT;

- return !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_DIR);
+ return GPIO_LINE_DIRECTION_IN;
}

static const struct pinctrl_ops ingenic_pctlops = {
diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index fb76fb2e9ea5..c3ae4b070c3d 100644
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c
@@ -604,7 +604,10 @@ static int ocelot_gpio_get_direction(struct gpio_chip *chip,

regmap_read(info->map, REG(OCELOT_GPIO_OE, info, offset), &val);

- return !(val & BIT(offset % 32));
+ if (val & BIT(offset % 32))
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int ocelot_gpio_direction_input(struct gpio_chip *chip,
diff --git a/drivers/pinctrl/pinctrl-oxnas.c b/drivers/pinctrl/pinctrl-oxnas.c
index 55488ca246f1..7d6d17b94ab9 100644
--- a/drivers/pinctrl/pinctrl-oxnas.c
+++ b/drivers/pinctrl/pinctrl-oxnas.c
@@ -756,7 +756,10 @@ static int oxnas_gpio_get_direction(struct gpio_chip *chip,
struct oxnas_gpio_bank *bank = gpiochip_get_data(chip);
u32 mask = BIT(offset);

- return !(readl_relaxed(bank->reg_base + OUTPUT_EN) & mask);
+ if (readl_relaxed(bank->reg_base + OUTPUT_EN) & mask)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int oxnas_gpio_direction_input(struct gpio_chip *chip,
diff --git a/drivers/pinctrl/pinctrl-pic32.c b/drivers/pinctrl/pinctrl-pic32.c
index e7f6dd5ab578..dd65178fbda2 100644
--- a/drivers/pinctrl/pinctrl-pic32.c
+++ b/drivers/pinctrl/pinctrl-pic32.c
@@ -1990,7 +1990,10 @@ static int pic32_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
struct pic32_gpio_bank *bank = gpiochip_get_data(chip);

- return !!(readl(bank->reg_base + TRIS_REG) & BIT(offset));
+ if (readl(bank->reg_base + TRIS_REG) & BIT(offset))
+ return GPIO_LINE_DIRECTION_IN;
+
+ return GPIO_LINE_DIRECTION_OUT;
}

static void pic32_gpio_irq_ack(struct irq_data *data)
diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c
index 379e9a6a6d89..c33375f5c5ff 100644
--- a/drivers/pinctrl/pinctrl-pistachio.c
+++ b/drivers/pinctrl/pinctrl-pistachio.c
@@ -1166,7 +1166,10 @@ static int pistachio_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
struct pistachio_gpio_bank *bank = gpiochip_get_data(chip);

- return !(gpio_readl(bank, GPIO_OUTPUT_EN) & BIT(offset));
+ if (gpio_readl(bank, GPIO_OUTPUT_EN) & BIT(offset))
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int pistachio_gpio_get(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/pinctrl/pinctrl-rk805.c b/drivers/pinctrl/pinctrl-rk805.c
index 26adbe9d6d42..cccbe072274e 100644
--- a/drivers/pinctrl/pinctrl-rk805.c
+++ b/drivers/pinctrl/pinctrl-rk805.c
@@ -184,7 +184,7 @@ static int rk805_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)

/* default output*/
if (!pci->pin_cfg[offset].dir_msk)
- return 0;
+ return GPIO_LINE_DIRECTION_OUT;

ret = regmap_read(pci->rk808->regmap,
pci->pin_cfg[offset].reg,
@@ -194,7 +194,10 @@ static int rk805_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
return ret;
}

- return !(val & pci->pin_cfg[offset].dir_msk);
+ if (val & pci->pin_cfg[offset].dir_msk)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static const struct gpio_chip rk805_gpio_chip = {
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index dc0bbf198cbc..cf5181ad817e 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2211,7 +2211,10 @@ static int rockchip_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
clk_disable(bank->clk);

- return !(data & BIT(offset));
+ if (data & BIT(offset))
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

/*
diff --git a/drivers/pinctrl/pinctrl-rza1.c b/drivers/pinctrl/pinctrl-rza1.c
index 215db220d795..002bd7346562 100644
--- a/drivers/pinctrl/pinctrl-rza1.c
+++ b/drivers/pinctrl/pinctrl-rza1.c
@@ -777,7 +777,10 @@ static int rza1_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
{
struct rza1_port *port = gpiochip_get_data(chip);

- return !!rza1_get_bit(port, RZA1_PM_REG, gpio);
+ if (rza1_get_bit(port, RZA1_PM_REG, gpio))
+ return GPIO_LINE_DIRECTION_IN;
+
+ return GPIO_LINE_DIRECTION_OUT;
}

static int rza1_gpio_direction_input(struct gpio_chip *chip,
diff --git a/drivers/pinctrl/pinctrl-rza2.c b/drivers/pinctrl/pinctrl-rza2.c
index 3be1d833bf25..0fca1fbc9480 100644
--- a/drivers/pinctrl/pinctrl-rza2.c
+++ b/drivers/pinctrl/pinctrl-rza2.c
@@ -135,10 +135,10 @@ static int rza2_chip_get_direction(struct gpio_chip *chip, unsigned int offset)
reg16 = (reg16 >> (pin * 2)) & RZA2_PDR_MASK;

if (reg16 == RZA2_PDR_OUTPUT)
- return 0;
+ return GPIO_LINE_DIRECTION_OUT;

if (reg16 == RZA2_PDR_INPUT)
- return 1;
+ return GPIO_LINE_DIRECTION_IN;

/*
* This GPIO controller has a default Hi-Z state that is not input or
@@ -146,7 +146,7 @@ static int rza2_chip_get_direction(struct gpio_chip *chip, unsigned int offset)
*/
rza2_pin_to_gpio(priv->base, offset, 1);

- return 1;
+ return GPIO_LINE_DIRECTION_IN;
}

static int rza2_chip_direction_input(struct gpio_chip *chip,
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 00db8b9efb2c..aff589ce446f 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -746,7 +746,10 @@ static int st_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
function = st_pctl_get_pin_function(&pc, offset);
if (function) {
st_pinconf_get_direction(&pc, offset, &config);
- return !ST_PINCONF_UNPACK_OE(config);
+ if (ST_PINCONF_UNPACK_OE(config))
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

/*
@@ -758,7 +761,10 @@ static int st_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
direction |= ((value >> offset) & 0x1) << i;
}

- return (direction == ST_GPIO_DIRECTION_IN);
+ if (direction == ST_GPIO_DIRECTION_IN)
+ return GPIO_LINE_DIRECTION_IN;
+
+ return GPIO_LINE_DIRECTION_OUT;
}

/* Pinctrl Groups */
@@ -996,6 +1002,7 @@ static void st_pinconf_dbg_show(struct pinctrl_dev *pctldev,
unsigned int function;
int offset = st_gpio_pin(pin_id);
char f[16];
+ int oe;

mutex_unlock(&pctldev->mutex);
pc = st_get_pio_control(pctldev, pin_id);
@@ -1008,10 +1015,11 @@ static void st_pinconf_dbg_show(struct pinctrl_dev *pctldev,
else
snprintf(f, 5, "GPIO");

+ oe = st_gpio_get_direction(&pc_to_bank(pc)->gpio_chip, offset);
seq_printf(s, "[OE:%d,PU:%ld,OD:%ld]\t%s\n"
"\t\t[retime:%ld,invclk:%ld,clknotdat:%ld,"
"de:%ld,rt-clk:%ld,rt-delay:%ld]",
- !st_gpio_get_direction(&pc_to_bank(pc)->gpio_chip, offset),
+ (oe == GPIO_LINE_DIRECTION_OUT),
ST_PINCONF_UNPACK_PU(config),
ST_PINCONF_UNPACK_OD(config),
f,
diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
index 564660028fcc..132a0f217692 100644
--- a/drivers/pinctrl/pinctrl-stmfx.c
+++ b/drivers/pinctrl/pinctrl-stmfx.c
@@ -134,10 +134,14 @@ static int stmfx_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
ret = regmap_read(pctl->stmfx->map, reg, &val);
/*
* On stmfx, gpio pins direction is (0)input, (1)output.
- * .get_direction returns 0=out, 1=in
*/
+ if (ret)
+ return ret;

- return ret ? ret : !(val & mask);
+ if (val & mask)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int stmfx_gpio_direction_input(struct gpio_chip *gc, unsigned int offset)
@@ -223,6 +227,13 @@ static int stmfx_pinconf_get(struct pinctrl_dev *pctldev,
dir = stmfx_gpio_get_direction(&pctl->gpio_chip, pin);
if (dir < 0)
return dir;
+
+ /*
+ * Currently the gpiolib IN is 1 and OUT is 0 but let's not count
+ * on it just to be on the safe side also in the future :)
+ */
+ dir = (dir == GPIO_LINE_DIRECTION_IN) ? 1 : 0;
+
type = stmfx_pinconf_get_type(pctl, pin);
if (type < 0)
return type;
@@ -360,7 +371,7 @@ static void stmfx_pinconf_dbg_show(struct pinctrl_dev *pctldev,
if (val < 0)
return;

- if (!dir) {
+ if (dir == GPIO_LINE_DIRECTION_OUT) {
seq_printf(s, "output %s ", val ? "high" : "low");
if (type)
seq_printf(s, "open drain %s internal pull-up ",
diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c
index 566665931a04..6e74bd87d959 100644
--- a/drivers/pinctrl/pinctrl-sx150x.c
+++ b/drivers/pinctrl/pinctrl-sx150x.c
@@ -391,13 +391,16 @@ static int sx150x_gpio_get_direction(struct gpio_chip *chip,
int ret;

if (sx150x_pin_is_oscio(pctl, offset))
- return false;
+ return GPIO_LINE_DIRECTION_OUT;

ret = regmap_read(pctl->regmap, pctl->data->reg_dir, &value);
if (ret < 0)
return ret;

- return !!(value & BIT(offset));
+ if (value & BIT(offset))
+ return GPIO_LINE_DIRECTION_IN;
+
+ return GPIO_LINE_DIRECTION_OUT;
}

static int sx150x_gpio_get(struct gpio_chip *chip, unsigned int offset)
@@ -687,7 +690,7 @@ static int sx150x_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
if (ret < 0)
return ret;

- if (ret)
+ if (ret == GPIO_LINE_DIRECTION_IN)
return -EINVAL;

ret = sx150x_gpio_get(&pctl->gpio, pin);
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 763da0be10d6..8844ca1261d5 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -485,8 +485,8 @@ static int msm_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)

val = msm_readl_ctl(pctrl, g);

- /* 0 = output, 1 = input */
- return val & BIT(g->oe_bit) ? 0 : 1;
+ return val & BIT(g->oe_bit) ? GPIO_LINE_DIRECTION_OUT :
+ GPIO_LINE_DIRECTION_IN;
}

static int msm_gpio_get(struct gpio_chip *chip, unsigned offset)
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index 2d5e0435af0a..72e0669ca7c8 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -283,9 +283,9 @@ static int stm32_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)

stm32_pmx_get_mode(bank, pin, &mode, &alt);
if ((alt == 0) && (mode == 0))
- ret = 1;
+ ret = GPIO_LINE_DIRECTION_IN;
else if ((alt == 0) && (mode == 1))
- ret = 0;
+ ret = GPIO_LINE_DIRECTION_OUT;
else
ret = -EINVAL;

diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.c b/drivers/pinctrl/vt8500/pinctrl-wmt.c
index 4d5cd7d8c760..7f2aceba295a 100644
--- a/drivers/pinctrl/vt8500/pinctrl-wmt.c
+++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c
@@ -486,8 +486,10 @@ static int wmt_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
u32 val;

val = readl_relaxed(data->base + reg_dir);
- /* Return 0 == output, 1 == input */
- return !(val & BIT(bit));
+ if (val & BIT(bit))
+ GPIO_LINE_DIRECTION_OUT;
+
+ return GPIO_LINE_DIRECTION_IN;
}

static int wmt_gpio_get_value(struct gpio_chip *chip, unsigned offset)
--
2.21.0

--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]

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