diff options
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 6e630e87fed6..921382fc5fdf 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -24,6 +24,8 @@ #include <linux/pinctrl/pinctrl.h> #include <linux/pinctrl/pinmux.h> +#include <linux/platform_data/x86/pwm-lpss.h> + #include "../core.h" #include "pinctrl-intel.h" @@ -49,6 +51,8 @@ #define PADOWN_MASK(p) (GENMASK(3, 0) << PADOWN_SHIFT(p)) #define PADOWN_GPP(p) ((p) / 8) +#define PWMC 0x204 + /* Offset from pad_regs */ #define PADCFG0 0x000 #define PADCFG0_RXEVCFG_SHIFT 25 @@ -1502,6 +1506,27 @@ static int intel_pinctrl_pm_init(struct intel_pinctrl *pctrl) return 0; } +static int intel_pinctrl_probe_pwm(struct intel_pinctrl *pctrl, + struct intel_community *community) +{ + static const struct pwm_lpss_boardinfo info = { + .clk_rate = 19200000, + .npwm = 1, + .base_unit_bits = 22, + .bypass = true, + }; + struct pwm_lpss_chip *pwm; + + if (!(community->features & PINCTRL_FEATURE_PWM)) + return 0; + + if (!IS_REACHABLE(CONFIG_PWM_LPSS)) + return 0; + + pwm = devm_pwm_lpss_probe(pctrl->dev, community->regs + PWMC, &info); + return PTR_ERR_OR_ZERO(pwm); +} + static int intel_pinctrl_probe(struct platform_device *pdev, const struct intel_pinctrl_soc_data *soc_data) { @@ -1588,6 +1613,10 @@ static int intel_pinctrl_probe(struct platform_device *pdev, ret = intel_pinctrl_add_padgroups_by_size(pctrl, community); if (ret) return ret; + + ret = intel_pinctrl_probe_pwm(pctrl, community); + if (ret) + return ret; } irq = platform_get_irq(pdev, 0); |