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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2023-11-22 20:50:37 +0300
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2023-11-24 15:33:30 +0300
commit5398a0e23cf82e2a69088d7080bc588bc07f4284 (patch)
treef00b2bce03a1c5e46e2f0f82e5aaac3c8143fc1c /drivers/pinctrl/intel
parent1a856a22e6036c5f0d6da7568b4550270f989038 (diff)
downloadlinux-5398a0e23cf82e2a69088d7080bc588bc07f4284.tar.xz
pinctrl: baytrail: Factor out byt_gpio_force_input_mode()
There is a piece of code that it being used at least twice. Factor it out. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/pinctrl/intel')
-rw-r--r--drivers/pinctrl/intel/pinctrl-baytrail.c42
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index f1af21dbd5fb..291f0454257b 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -829,6 +829,24 @@ static int byt_set_pull_strength(u32 *reg, u16 strength)
return 0;
}
+static void byt_gpio_force_input_mode(struct intel_pinctrl *vg, unsigned int offset)
+{
+ void __iomem *reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+ u32 value;
+
+ value = readl(reg);
+ if (!(value & BYT_INPUT_EN))
+ return;
+
+ /*
+ * Pull assignment is only applicable in input mode. If
+ * chip is not in input mode, set it and warn about it.
+ */
+ value &= ~BYT_INPUT_EN;
+ writel(value, reg);
+ dev_warn(vg->dev, "Pin %i: forcibly set to input mode\n", offset);
+}
+
static int byt_pin_config_get(struct pinctrl_dev *pctl_dev, unsigned int offset,
unsigned long *config)
{
@@ -919,9 +937,8 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev,
{
struct intel_pinctrl *vg = pinctrl_dev_get_drvdata(pctl_dev);
void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
- void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
void __iomem *db_reg = byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG);
- u32 conf, val, db_pulse, debounce;
+ u32 conf, db_pulse, debounce;
enum pin_config_param param;
unsigned long flags;
int i, ret = 0;
@@ -930,7 +947,6 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev,
raw_spin_lock_irqsave(&byt_lock, flags);
conf = readl(conf_reg);
- val = readl(val_reg);
for (i = 0; i < num_configs; i++) {
param = pinconf_to_config_param(configs[i]);
@@ -945,15 +961,7 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev,
if (arg == 1)
arg = 2000;
- /*
- * Pull assignment is only applicable in input mode. If
- * chip is not in input mode, set it and warn about it.
- */
- if (val & BYT_INPUT_EN) {
- val &= ~BYT_INPUT_EN;
- writel(val, val_reg);
- dev_warn(vg->dev, "Pin %i: forcibly set to input mode\n", offset);
- }
+ byt_gpio_force_input_mode(vg, offset);
conf &= ~BYT_PULL_ASSIGN_MASK;
conf |= BYT_PULL_ASSIGN_DOWN;
@@ -965,15 +973,7 @@ static int byt_pin_config_set(struct pinctrl_dev *pctl_dev,
if (arg == 1)
arg = 2000;
- /*
- * Pull assignment is only applicable in input mode. If
- * chip is not in input mode, set it and warn about it.
- */
- if (val & BYT_INPUT_EN) {
- val &= ~BYT_INPUT_EN;
- writel(val, val_reg);
- dev_warn(vg->dev, "Pin %i: forcibly set to input mode\n", offset);
- }
+ byt_gpio_force_input_mode(vg, offset);
conf &= ~BYT_PULL_ASSIGN_MASK;
conf |= BYT_PULL_ASSIGN_UP;