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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
| commit | 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch) | |
| tree | fa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/reset/sti | |
| parent | d4e493caf788ef44982e131ff9c786546904d934 (diff) | |
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/reset/sti')
| -rw-r--r-- | drivers/reset/sti/reset-stih407.c | 5 | ||||
| -rw-r--r-- | drivers/reset/sti/reset-syscfg.c | 27 |
2 files changed, 31 insertions, 1 deletions
diff --git a/drivers/reset/sti/reset-stih407.c b/drivers/reset/sti/reset-stih407.c index 827eb3dae..6fb22af99 100644 --- a/drivers/reset/sti/reset-stih407.c +++ b/drivers/reset/sti/reset-stih407.c @@ -52,6 +52,7 @@ static const struct syscfg_reset_channel_data stih407_powerdowns[] = { }; /* Reset Generator control 0/1 */ +#define SYSCFG_5128 0x200 #define SYSCFG_5131 0x20c #define SYSCFG_5132 0x210 @@ -96,6 +97,10 @@ static const struct syscfg_reset_channel_data stih407_softresets[] = { [STIH407_ERAM_HVA_SOFTRESET] = STIH407_SRST_CORE(SYSCFG_5132, 1), [STIH407_LPM_SOFTRESET] = STIH407_SRST_SBC(SYSCFG_4002, 2), [STIH407_KEYSCAN_SOFTRESET] = STIH407_SRST_LPM(LPM_SYSCFG_1, 8), + [STIH407_ST231_AUD_SOFTRESET] = STIH407_SRST_CORE(SYSCFG_5131, 26), + [STIH407_ST231_DMU_SOFTRESET] = STIH407_SRST_CORE(SYSCFG_5131, 27), + [STIH407_ST231_GP0_SOFTRESET] = STIH407_SRST_CORE(SYSCFG_5131, 28), + [STIH407_ST231_GP1_SOFTRESET] = STIH407_SRST_CORE(SYSCFG_5128, 2), }; /* PicoPHY reset/control */ diff --git a/drivers/reset/sti/reset-syscfg.c b/drivers/reset/sti/reset-syscfg.c index a145cc066..1600cc755 100644 --- a/drivers/reset/sti/reset-syscfg.c +++ b/drivers/reset/sti/reset-syscfg.c @@ -103,17 +103,42 @@ static int syscfg_reset_deassert(struct reset_controller_dev *rcdev, static int syscfg_reset_dev(struct reset_controller_dev *rcdev, unsigned long idx) { - int err = syscfg_reset_assert(rcdev, idx); + int err; + + err = syscfg_reset_assert(rcdev, idx); if (err) return err; return syscfg_reset_deassert(rcdev, idx); } +static int syscfg_reset_status(struct reset_controller_dev *rcdev, + unsigned long idx) +{ + struct syscfg_reset_controller *rst = to_syscfg_reset_controller(rcdev); + const struct syscfg_reset_channel *ch; + u32 ret_val = 0; + int err; + + if (idx >= rcdev->nr_resets) + return -EINVAL; + + ch = &rst->channels[idx]; + if (ch->ack) + err = regmap_field_read(ch->ack, &ret_val); + else + err = regmap_field_read(ch->reset, &ret_val); + if (err) + return err; + + return rst->active_low ? !ret_val : !!ret_val; +} + static struct reset_control_ops syscfg_reset_ops = { .reset = syscfg_reset_dev, .assert = syscfg_reset_assert, .deassert = syscfg_reset_deassert, + .status = syscfg_reset_status, }; static int syscfg_reset_controller_register(struct device *dev, |