diff options
| author | Petlozu Pravareshwar <petlozup@nvidia.com> | 2023-03-30 17:06:21 +0000 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2023-04-03 14:34:00 +0200 |
| commit | a0941221c5c6d4574af69b40ac026c22c24965fc (patch) | |
| tree | dc10330c5968e558bf8695e4b1f30c6c735b8eab /drivers/soc/tegra | |
| parent | cc026ccdd502c3709f06aadfde14d1eac6cc3763 (diff) | |
soc/tegra: pmc: Support software wake-up for SPE
The Sensor Processing Engine(SPE) can trigger a software wake-up of
the device. To support this wake-up for the SPE, set SR_CAPTURE_EN
bit in WAKE_AOWAKE_CNTRL register associated with the wake-up for
the SPE. This SR capturing logic is expected to be enabled for wakes
with short pulse signalling requirements.
Signed-off-by: Viswanath L <viswanathl@nvidia.com>
Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc/tegra')
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index d478be88d580..5d17799524c9 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -177,6 +177,7 @@ /* Tegra186 and later */ #define WAKE_AOWAKE_CNTRL(x) (0x000 + ((x) << 2)) #define WAKE_AOWAKE_CNTRL_LEVEL (1 << 3) +#define WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN (1 << 1) #define WAKE_AOWAKE_MASK_W(x) (0x180 + ((x) << 2)) #define WAKE_AOWAKE_MASK_R(x) (0x300 + ((x) << 2)) #define WAKE_AOWAKE_STATUS_W(x) (0x30c + ((x) << 2)) @@ -191,6 +192,8 @@ #define WAKE_AOWAKE_CTRL 0x4f4 #define WAKE_AOWAKE_CTRL_INTR_POLARITY BIT(0) +#define SW_WAKE_ID 83 /* wake83 */ + /* for secure PMC */ #define TEGRA_SMC_PMC 0xc2fffe00 #define TEGRA_SMC_PMC_READ 0xaa @@ -355,6 +358,7 @@ struct tegra_pmc_soc { void (*setup_irq_polarity)(struct tegra_pmc *pmc, struct device_node *np, bool invert); + void (*set_wake_filters)(struct tegra_pmc *pmc); int (*irq_set_wake)(struct irq_data *data, unsigned int on); int (*irq_set_type)(struct irq_data *data, unsigned int type); int (*powergate_set)(struct tegra_pmc *pmc, unsigned int id, @@ -2416,6 +2420,17 @@ static int tegra210_pmc_irq_set_type(struct irq_data *data, unsigned int type) return 0; } +static void tegra186_pmc_set_wake_filters(struct tegra_pmc *pmc) +{ + u32 value; + + /* SW Wake (wake83) needs SR_CAPTURE filter to be enabled */ + value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID)); + value |= WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN; + writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID)); + dev_dbg(pmc->dev, "WAKE_AOWAKE_CNTRL_83 = 0x%x\n", value); +} + static int tegra186_pmc_irq_set_wake(struct irq_data *data, unsigned int on) { struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data); @@ -3042,6 +3057,10 @@ static int tegra_pmc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pmc); tegra_pm_init_suspend(); + /* Some wakes require specific filter configuration */ + if (pmc->soc->set_wake_filters) + pmc->soc->set_wake_filters(pmc); + return 0; cleanup_powergates: @@ -3938,6 +3957,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = { .regs = &tegra186_pmc_regs, .init = tegra186_pmc_init, .setup_irq_polarity = tegra186_pmc_setup_irq_polarity, + .set_wake_filters = tegra186_pmc_set_wake_filters, .irq_set_wake = tegra186_pmc_irq_set_wake, .irq_set_type = tegra186_pmc_irq_set_type, .reset_sources = tegra186_reset_sources, @@ -4122,6 +4142,7 @@ static const struct tegra_pmc_soc tegra194_pmc_soc = { .regs = &tegra194_pmc_regs, .init = tegra186_pmc_init, .setup_irq_polarity = tegra186_pmc_setup_irq_polarity, + .set_wake_filters = tegra186_pmc_set_wake_filters, .irq_set_wake = tegra186_pmc_irq_set_wake, .irq_set_type = tegra186_pmc_irq_set_type, .reset_sources = tegra194_reset_sources, @@ -4249,6 +4270,7 @@ static const struct tegra_pmc_soc tegra234_pmc_soc = { .regs = &tegra234_pmc_regs, .init = tegra186_pmc_init, .setup_irq_polarity = tegra186_pmc_setup_irq_polarity, + .set_wake_filters = tegra186_pmc_set_wake_filters, .irq_set_wake = tegra186_pmc_irq_set_wake, .irq_set_type = tegra186_pmc_irq_set_type, .reset_sources = tegra234_reset_sources, |