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Differential D33372 Diff 99819 sys/arm64/rockchip/rk_pinctrl.c

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sys/arm64/rockchip/rk_pinctrl.c

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} }
static int static int
rk_pinctrl_get_flags(device_t pinctrl, device_t gpio, uint32_t pin, rk_pinctrl_get_flags(device_t pinctrl, device_t gpio, uint32_t pin,
uint32_t *flags) uint32_t *flags)
{ {
struct rk_pinctrl_softc *sc; struct rk_pinctrl_softc *sc;
struct syscon *syscon; struct syscon *syscon;
uint32_t reg, mask, bit; uint32_t reg, bit;
uint32_t bias; uint32_t bias;
int bank; int bank;
int rv = 0; int rv = 0;
bool is_gpio; bool is_gpio;
sc = device_get_softc(pinctrl); sc = device_get_softc(pinctrl);
RK_PINCTRL_LOCK(sc); RK_PINCTRL_LOCK(sc);
rv = rk_pinctrl_get_bank(sc, gpio, &bank); rv = rk_pinctrl_get_bank(sc, gpio, &bank);
if (rv != 0) if (rv != 0)
goto done; goto done;
syscon = sc->conf->get_syscon(sc, bank); syscon = sc->conf->get_syscon(sc, bank);
rv = rk_pinctrl_is_gpio_locked(sc, syscon, bank, pin, &is_gpio); rv = rk_pinctrl_is_gpio_locked(sc, syscon, bank, pin, &is_gpio);
if (rv != 0) if (rv != 0)
goto done; goto done;
if (!is_gpio) { if (!is_gpio) {
rv = EINVAL; rv = EINVAL;
goto done; goto done;
} }
/* Get the pullup/pulldown configuration */ /* Get the pullup/pulldown configuration */
reg = sc->conf->get_pd_offset(sc, bank); reg = sc->conf->get_pd_offset(sc, bank);
reg += bank * 0x10 + ((pin / 8) * 0x4); reg += bank * 0x10 + ((pin / 8) * 0x4);
bit = (pin % 8) * 2; bit = (pin % 8) * 2;
mask = (0x3 << bit) << 16;
reg = SYSCON_READ_4(syscon, reg); reg = SYSCON_READ_4(syscon, reg);
reg = (reg >> bit) & 0x3; reg = (reg >> bit) & 0x3;
bias = sc->conf->resolv_bias_value(bank, reg); bias = sc->conf->resolv_bias_value(bank, reg);
*flags = bias; *flags = bias;
done: done:
RK_PINCTRL_UNLOCK(sc); RK_PINCTRL_UNLOCK(sc);
return (rv); return (rv);
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