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Diffstat (limited to 'drivers/soc/tegra/pmc.c')
-rw-r--r--drivers/soc/tegra/pmc.c87
1 files changed, 39 insertions, 48 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index f432aa022a..d6bfcea5ee 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -3,7 +3,7 @@
* drivers/soc/tegra/pmc.c
*
* Copyright (c) 2010 Google, Inc
- * Copyright (c) 2018-2023, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2018-2024, NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Colin Cross <ccross@google.com>
@@ -384,6 +384,7 @@ struct tegra_pmc_soc {
bool has_blink_output;
bool has_usb_sleepwalk;
bool supports_core_domain;
+ bool has_single_mmio_aperture;
};
/**
@@ -1777,30 +1778,6 @@ static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
return TEGRA_IO_PAD_VOLTAGE_3V3;
}
-/**
- * tegra_io_rail_power_on() - enable power to I/O rail
- * @id: Tegra I/O pad ID for which to enable power
- *
- * See also: tegra_io_pad_power_enable()
- */
-int tegra_io_rail_power_on(unsigned int id)
-{
- return tegra_io_pad_power_enable(id);
-}
-EXPORT_SYMBOL(tegra_io_rail_power_on);
-
-/**
- * tegra_io_rail_power_off() - disable power to I/O rail
- * @id: Tegra I/O pad ID for which to disable power
- *
- * See also: tegra_io_pad_power_disable()
- */
-int tegra_io_rail_power_off(unsigned int id)
-{
- return tegra_io_pad_power_disable(id);
-}
-EXPORT_SYMBOL(tegra_io_rail_power_off);
-
#ifdef CONFIG_PM_SLEEP
enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
{
@@ -2909,31 +2886,33 @@ static int tegra_pmc_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wake");
- if (res) {
+ if (pmc->soc->has_single_mmio_aperture) {
+ pmc->wake = base;
+ pmc->aotag = base;
+ pmc->scratch = base;
+ } else {
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "wake");
pmc->wake = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pmc->wake))
return PTR_ERR(pmc->wake);
- } else {
- pmc->wake = base;
- }
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aotag");
- if (res) {
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "aotag");
pmc->aotag = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(pmc->aotag))
return PTR_ERR(pmc->aotag);
- } else {
- pmc->aotag = base;
- }
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch");
- if (res) {
- pmc->scratch = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(pmc->scratch))
- return PTR_ERR(pmc->scratch);
- } else {
- pmc->scratch = base;
+ /* "scratch" is an optional aperture */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "scratch");
+ if (res) {
+ pmc->scratch = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pmc->scratch))
+ return PTR_ERR(pmc->scratch);
+ } else {
+ pmc->scratch = NULL;
+ }
}
pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk");
@@ -2945,12 +2924,15 @@ static int tegra_pmc_probe(struct platform_device *pdev)
* PMC should be last resort for restarting since it soft-resets
* CPU without resetting everything else.
*/
- err = devm_register_reboot_notifier(&pdev->dev,
- &tegra_pmc_reboot_notifier);
- if (err) {
- dev_err(&pdev->dev, "unable to register reboot notifier, %d\n",
- err);
- return err;
+ if (pmc->scratch) {
+ err = devm_register_reboot_notifier(&pdev->dev,
+ &tegra_pmc_reboot_notifier);
+ if (err) {
+ dev_err(&pdev->dev,
+ "unable to register reboot notifier, %d\n",
+ err);
+ return err;
+ }
}
err = devm_register_sys_off_handler(&pdev->dev,
@@ -3324,6 +3306,7 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = {
.num_pmc_clks = 0,
.has_blink_output = true,
.has_usb_sleepwalk = true,
+ .has_single_mmio_aperture = true,
};
static const char * const tegra30_powergates[] = {
@@ -3385,6 +3368,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = {
.num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
.has_blink_output = true,
.has_usb_sleepwalk = true,
+ .has_single_mmio_aperture = true,
};
static const char * const tegra114_powergates[] = {
@@ -3442,6 +3426,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = {
.num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
.has_blink_output = true,
.has_usb_sleepwalk = true,
+ .has_single_mmio_aperture = true,
};
static const char * const tegra124_powergates[] = {
@@ -3586,6 +3571,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = {
.num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
.has_blink_output = true,
.has_usb_sleepwalk = true,
+ .has_single_mmio_aperture = true,
};
static const char * const tegra210_powergates[] = {
@@ -3749,6 +3735,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = {
.num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
.has_blink_output = true,
.has_usb_sleepwalk = true,
+ .has_single_mmio_aperture = true,
};
static const struct tegra_io_pad_soc tegra186_io_pads[] = {
@@ -3946,6 +3933,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = {
.num_pmc_clks = 0,
.has_blink_output = false,
.has_usb_sleepwalk = false,
+ .has_single_mmio_aperture = false,
};
static const struct tegra_io_pad_soc tegra194_io_pads[] = {
@@ -4131,6 +4119,7 @@ static const struct tegra_pmc_soc tegra194_pmc_soc = {
.num_pmc_clks = 0,
.has_blink_output = false,
.has_usb_sleepwalk = false,
+ .has_single_mmio_aperture = false,
};
static const struct tegra_io_pad_soc tegra234_io_pads[] = {
@@ -4220,6 +4209,7 @@ static const char * const tegra234_reset_sources[] = {
};
static const struct tegra_wake_event tegra234_wake_events[] = {
+ TEGRA_WAKE_GPIO("sd-wake", 8, 0, TEGRA234_MAIN_GPIO(G, 7)),
TEGRA_WAKE_IRQ("pmu", 24, 209),
TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
TEGRA_WAKE_GPIO("mgbe", 56, 0, TEGRA234_MAIN_GPIO(Y, 3)),
@@ -4259,6 +4249,7 @@ static const struct tegra_pmc_soc tegra234_pmc_soc = {
.pmc_clks_data = NULL,
.num_pmc_clks = 0,
.has_blink_output = false,
+ .has_single_mmio_aperture = false,
};
static const struct of_device_id tegra_pmc_match[] = {