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* [PATCH v2 0/7] Tegra PMC pinctrl pad configuration
@ 2018-07-11 14:01 Aapo Vienamo
  2018-07-11 14:01 ` [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo
                   ` (6 more replies)
  0 siblings, 7 replies; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:01 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Hi all,

The Tegra Power Management Controller (PMC) can set pad power states
and voltage configuration. This series implements pinctrl interfaces
for configuring said pad properties.

Changelog
v2:
	- Add Tegra186 AO_HV pad
	- Make the IO pad tables narrower
	- Add parens to TEGRA_IO_PAD() and TEGRA_IO_PIN_DESC()
	- Fix a typo in the dt-bindings docs
	- Remove old pmc pad voltage configuration APIs
	- Check return value of tegra_io_pad_find() in
	  tegra_io_pad_pinconf_get()/_set()

Aapo Vienamo (7):
  soc/tegra: pmc: Fix pad voltage configuration for Tegra186
  soc/tegra: pmc: Factor out DPD register bit calculation
  soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  soc/tegra: pmc: Use X macro to generate IO pad tables
  dt-bindings: Add Tegra PMC pad configuration bindings
  soc/tegra: pmc: Remove public pad voltage APIs
  soc/tegra: pmc: Implement pad configuration via pinctrl

 .../bindings/arm/tegra/nvidia,tegra186-pmc.txt     |  84 ++++
 .../bindings/arm/tegra/nvidia,tegra20-pmc.txt      |  95 ++++
 drivers/soc/tegra/pmc.c                            | 513 +++++++++++++++------
 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h |  18 +
 include/soc/tegra/pmc.h                            |  15 +-
 5 files changed, 583 insertions(+), 142 deletions(-)
 create mode 100644 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h

-- 
2.7.4


^ permalink raw reply	[flat|nested] 15+ messages in thread
* [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
@ 2018-07-11 14:01 ` Aapo Vienamo
  2018-07-11 15:27   ` Jon Hunter
  2018-07-11 14:01 ` [PATCH v2 2/7] soc/tegra: pmc: Factor out DPD register bit calculation Aapo Vienamo
                   ` (5 subsequent siblings)
  6 siblings, 1 reply; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:01 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Implement support for the PMC_IMPL_E_33V_PWR register which replaces
PMC_PWR_DET register interface of the SoC generations preceding
Tegra186. Also add the voltage bit offsets to the tegra186_io_pads[]
table and the AO_HV pad.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 55 ++++++++++++++++++++++++++++++++++---------------
 include/soc/tegra/pmc.h |  1 +
 2 files changed, 39 insertions(+), 17 deletions(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 2d6f3fc..f926332 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -65,6 +65,8 @@
 
 #define PWRGATE_STATUS			0x38
 
+#define PMC_IMPL_E_33V_PWR		0x40
+
 #define PMC_PWR_DET			0x48
 
 #define PMC_SCRATCH0_MODE_RECOVERY	BIT(31)
@@ -154,6 +156,7 @@ struct tegra_pmc_soc {
 	bool has_tsense_reset;
 	bool has_gpu_clamps;
 	bool needs_mbist_war;
+	bool has_impl_33v_pwr;
 
 	const struct tegra_io_pad_soc *io_pads;
 	unsigned int num_io_pads;
@@ -1073,20 +1076,29 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
 
 	mutex_lock(&pmc->powergates_lock);
 
-	/* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
-	value = tegra_pmc_readl(PMC_PWR_DET);
-	value |= BIT(pad->voltage);
-	tegra_pmc_writel(value, PMC_PWR_DET);
+	if (pmc->soc->has_impl_33v_pwr) {
+		value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR);
+		if (voltage == TEGRA_IO_PAD_1800000UV)
+			value &= ~BIT(pad->voltage);
+		else
+			value |= BIT(pad->voltage);
+		tegra_pmc_writel(value, PMC_IMPL_E_33V_PWR);
+	} else {
+		/* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
+		value = tegra_pmc_readl(PMC_PWR_DET);
+		value |= BIT(pad->voltage);
+		tegra_pmc_writel(value, PMC_PWR_DET);
 
-	/* update I/O voltage */
-	value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
+		/* update I/O voltage */
+		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
 
-	if (voltage == TEGRA_IO_PAD_1800000UV)
-		value &= ~BIT(pad->voltage);
-	else
-		value |= BIT(pad->voltage);
+		if (voltage == TEGRA_IO_PAD_1800000UV)
+			value &= ~BIT(pad->voltage);
+		else
+			value |= BIT(pad->voltage);
 
-	tegra_pmc_writel(value, PMC_PWR_DET_VALUE);
+		tegra_pmc_writel(value, PMC_PWR_DET_VALUE);
+	}
 
 	mutex_unlock(&pmc->powergates_lock);
 
@@ -1108,7 +1120,10 @@ int tegra_io_pad_get_voltage(enum tegra_io_pad id)
 	if (pad->voltage == UINT_MAX)
 		return -ENOTSUPP;
 
-	value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
+	if (pmc->soc->has_impl_33v_pwr)
+		value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR);
+	else
+		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
 
 	if ((value & BIT(pad->voltage)) == 0)
 		return TEGRA_IO_PAD_1800000UV;
@@ -1567,6 +1582,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = {
 	.cpu_powergates = tegra30_cpu_powergates,
 	.has_tsense_reset = true,
 	.has_gpu_clamps = false,
+	.has_impl_33v_pwr = false,
 	.num_io_pads = 0,
 	.io_pads = NULL,
 	.regs = &tegra20_pmc_regs,
@@ -1609,6 +1625,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = {
 	.cpu_powergates = tegra114_cpu_powergates,
 	.has_tsense_reset = true,
 	.has_gpu_clamps = false,
+	.has_impl_33v_pwr = false,
 	.num_io_pads = 0,
 	.io_pads = NULL,
 	.regs = &tegra20_pmc_regs,
@@ -1689,6 +1706,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = {
 	.cpu_powergates = tegra124_cpu_powergates,
 	.has_tsense_reset = true,
 	.has_gpu_clamps = true,
+	.has_impl_33v_pwr = false,
 	.num_io_pads = ARRAY_SIZE(tegra124_io_pads),
 	.io_pads = tegra124_io_pads,
 	.regs = &tegra20_pmc_regs,
@@ -1778,6 +1796,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = {
 	.cpu_powergates = tegra210_cpu_powergates,
 	.has_tsense_reset = true,
 	.has_gpu_clamps = true,
+	.has_impl_33v_pwr = false,
 	.needs_mbist_war = true,
 	.num_io_pads = ARRAY_SIZE(tegra210_io_pads),
 	.io_pads = tegra210_io_pads,
@@ -1806,7 +1825,7 @@ static const struct tegra_io_pad_soc tegra186_io_pads[] = {
 	{ .id = TEGRA_IO_PAD_HDMI_DP0, .dpd = 28, .voltage = UINT_MAX },
 	{ .id = TEGRA_IO_PAD_HDMI_DP1, .dpd = 29, .voltage = UINT_MAX },
 	{ .id = TEGRA_IO_PAD_PEX_CNTRL, .dpd = 32, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC2_HV, .dpd = 34, .voltage = UINT_MAX },
+	{ .id = TEGRA_IO_PAD_SDMMC2_HV, .dpd = 34, .voltage = 5 },
 	{ .id = TEGRA_IO_PAD_SDMMC4, .dpd = 36, .voltage = UINT_MAX },
 	{ .id = TEGRA_IO_PAD_CAM, .dpd = 38, .voltage = UINT_MAX },
 	{ .id = TEGRA_IO_PAD_DSIB, .dpd = 40, .voltage = UINT_MAX },
@@ -1818,12 +1837,13 @@ static const struct tegra_io_pad_soc tegra186_io_pads[] = {
 	{ .id = TEGRA_IO_PAD_CSIF, .dpd = 46, .voltage = UINT_MAX },
 	{ .id = TEGRA_IO_PAD_SPI, .dpd = 47, .voltage = UINT_MAX },
 	{ .id = TEGRA_IO_PAD_UFS, .dpd = 49, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DMIC_HV, .dpd = 52, .voltage = UINT_MAX },
+	{ .id = TEGRA_IO_PAD_DMIC_HV, .dpd = 52, .voltage = 2 },
 	{ .id = TEGRA_IO_PAD_EDP, .dpd = 53, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC1_HV, .dpd = 55, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC3_HV, .dpd = 56, .voltage = UINT_MAX },
+	{ .id = TEGRA_IO_PAD_SDMMC1_HV, .dpd = 55, .voltage = 4 },
+	{ .id = TEGRA_IO_PAD_SDMMC3_HV, .dpd = 56, .voltage = 6 },
 	{ .id = TEGRA_IO_PAD_CONN, .dpd = 60, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = UINT_MAX },
+	{ .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = 1 },
+	{ .id = TEGRA_IO_PAD_AO_HV, .dpd = UINT_MAX, .voltage = 0 },
 };
 
 static const struct tegra_pmc_regs tegra186_pmc_regs = {
@@ -1876,6 +1896,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = {
 	.cpu_powergates = NULL,
 	.has_tsense_reset = false,
 	.has_gpu_clamps = false,
+	.has_impl_33v_pwr = true,
 	.num_io_pads = ARRAY_SIZE(tegra186_io_pads),
 	.io_pads = tegra186_io_pads,
 	.regs = &tegra186_pmc_regs,
diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
index c32bf91..445aa66 100644
--- a/include/soc/tegra/pmc.h
+++ b/include/soc/tegra/pmc.h
@@ -134,6 +134,7 @@ enum tegra_io_pad {
 	TEGRA_IO_PAD_USB2,
 	TEGRA_IO_PAD_USB3,
 	TEGRA_IO_PAD_USB_BIAS,
+	TEGRA_IO_PAD_AO_HV,
 };
 
 /* deprecated, use TEGRA_IO_PAD_{HDMI,LVDS} instead */
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* [PATCH v2 2/7] soc/tegra: pmc: Factor out DPD register bit calculation
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
  2018-07-11 14:01 ` [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo
@ 2018-07-11 14:01 ` Aapo Vienamo
  2018-07-11 14:01 ` [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered() Aapo Vienamo
                   ` (4 subsequent siblings)
  6 siblings, 0 replies; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:01 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Factor out the the code to calculate the correct DPD register and bit
number for a given pad. This logic will be needed to query the status
register.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index f926332..393ca72 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -922,11 +922,12 @@ tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id)
 	return NULL;
 }
 
-static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request,
-				unsigned long *status, u32 *mask)
+static int tegra_io_pad_get_dpd_register_bit(enum tegra_io_pad id,
+					     unsigned long *request,
+					     unsigned long *status,
+					     u32 *mask)
 {
 	const struct tegra_io_pad_soc *pad;
-	unsigned long rate, value;
 
 	pad = tegra_io_pad_find(pmc, id);
 	if (!pad) {
@@ -947,6 +948,19 @@ static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request,
 		*request = pmc->soc->regs->dpd2_req;
 	}
 
+	return 0;
+}
+
+static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request,
+				unsigned long *status, u32 *mask)
+{
+	unsigned long rate, value;
+	int err;
+
+	err = tegra_io_pad_get_dpd_register_bit(id, request, status, mask);
+	if (err)
+		return err;
+
 	if (pmc->clk) {
 		rate = clk_get_rate(pmc->clk);
 		if (!rate) {
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
  2018-07-11 14:01 ` [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo
  2018-07-11 14:01 ` [PATCH v2 2/7] soc/tegra: pmc: Factor out DPD register bit calculation Aapo Vienamo
@ 2018-07-11 14:01 ` Aapo Vienamo
  2018-07-11 15:23   ` Jon Hunter
  2018-07-11 14:01 ` [PATCH v2 4/7] soc/tegra: pmc: Use X macro to generate IO pad tables Aapo Vienamo
                   ` (3 subsequent siblings)
  6 siblings, 1 reply; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:01 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Implement a function to query whether a pad is in deep power down mode.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 17 +++++++++++++++++
 include/soc/tegra/pmc.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 393ca72..fa47e7a 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -1075,6 +1075,23 @@ int tegra_io_pad_power_disable(enum tegra_io_pad id)
 }
 EXPORT_SYMBOL(tegra_io_pad_power_disable);
 
+int tegra_io_pad_is_powered(enum tegra_io_pad id)
+{
+	unsigned long request, status;
+	u32 mask;
+	u32 value;
+	int err;
+
+	err = tegra_io_pad_get_dpd_register_bit(id, &request, &status, &mask);
+	if (err)
+		return err;
+
+	value = tegra_pmc_readl(status);
+
+	return !(value & mask);
+}
+EXPORT_SYMBOL(tegra_io_pad_is_powered);
+
 int tegra_io_pad_set_voltage(enum tegra_io_pad id,
 			     enum tegra_io_pad_voltage voltage)
 {
diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
index 445aa66..14206e8 100644
--- a/include/soc/tegra/pmc.h
+++ b/include/soc/tegra/pmc.h
@@ -163,6 +163,7 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
 
 int tegra_io_pad_power_enable(enum tegra_io_pad id);
 int tegra_io_pad_power_disable(enum tegra_io_pad id);
+int tegra_io_pad_is_powered(enum tegra_io_pad id);
 int tegra_io_pad_set_voltage(enum tegra_io_pad id,
 			     enum tegra_io_pad_voltage voltage);
 int tegra_io_pad_get_voltage(enum tegra_io_pad id);
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* [PATCH v2 4/7] soc/tegra: pmc: Use X macro to generate IO pad tables
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
                   ` (2 preceding siblings ...)
  2018-07-11 14:01 ` [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered() Aapo Vienamo
@ 2018-07-11 14:01 ` Aapo Vienamo
  2018-07-11 14:05 ` [PATCH v2 5/7] dt-bindings: Add Tegra PMC pad configuration bindings Aapo Vienamo
                   ` (2 subsequent siblings)
  6 siblings, 0 replies; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:01 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Refactor the IO pad tables into macro tables so that they can be reused
to generate pinctrl pin descriptors. Also add a name field which is
needed by pinctrl.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 233 ++++++++++++++++++++++++++----------------------
 1 file changed, 127 insertions(+), 106 deletions(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index fa47e7a..f68dbfa 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -137,6 +137,7 @@ struct tegra_io_pad_soc {
 	enum tegra_io_pad id;
 	unsigned int dpd;
 	unsigned int voltage;
+	const char *name;
 };
 
 struct tegra_pmc_regs {
@@ -1697,37 +1698,49 @@ static const u8 tegra124_cpu_powergates[] = {
 	TEGRA_POWERGATE_CPU3,
 };
 
+#define TEGRA_IO_PAD(_id, _dpd, _voltage, _name)	\
+	((struct tegra_io_pad_soc) {			\
+		.id	= (_id),			\
+		.dpd	= (_dpd),			\
+		.voltage = (_voltage),			\
+		.name	= (_name),			\
+	})
+
+#define TEGRA124_IO_PAD_TABLE(_pad)					\
+	/* .id                          .dpd    .voltage  .name	*/	\
+	_pad(TEGRA_IO_PAD_AUDIO,	17,	UINT_MAX, "audio"),	\
+	_pad(TEGRA_IO_PAD_BB,		15,	UINT_MAX, "bb"),	\
+	_pad(TEGRA_IO_PAD_CAM,		36,	UINT_MAX, "cam"),	\
+	_pad(TEGRA_IO_PAD_COMP,		22,	UINT_MAX, "comp"),	\
+	_pad(TEGRA_IO_PAD_CSIA,		0,	UINT_MAX, "csia"),	\
+	_pad(TEGRA_IO_PAD_CSIB,		1,	UINT_MAX, "csb"),	\
+	_pad(TEGRA_IO_PAD_CSIE,		44,	UINT_MAX, "cse"),	\
+	_pad(TEGRA_IO_PAD_DSI,		2,	UINT_MAX, "dsi"),	\
+	_pad(TEGRA_IO_PAD_DSIB,		39,	UINT_MAX, "dsib"),	\
+	_pad(TEGRA_IO_PAD_DSIC,		40,	UINT_MAX, "dsic"),	\
+	_pad(TEGRA_IO_PAD_DSID,		41,	UINT_MAX, "dsid"),	\
+	_pad(TEGRA_IO_PAD_HDMI,		28,	UINT_MAX, "hdmi"),	\
+	_pad(TEGRA_IO_PAD_HSIC,		19,	UINT_MAX, "hsic"),	\
+	_pad(TEGRA_IO_PAD_HV,		38,	UINT_MAX, "hv"),	\
+	_pad(TEGRA_IO_PAD_LVDS,		57,	UINT_MAX, "lvds"),	\
+	_pad(TEGRA_IO_PAD_MIPI_BIAS,	3,	UINT_MAX, "mipi-bias"),	\
+	_pad(TEGRA_IO_PAD_NAND,		13,	UINT_MAX, "nand"),	\
+	_pad(TEGRA_IO_PAD_PEX_BIAS,	4,	UINT_MAX, "pex-bias"),	\
+	_pad(TEGRA_IO_PAD_PEX_CLK1,	5,	UINT_MAX, "pex-clk1"),	\
+	_pad(TEGRA_IO_PAD_PEX_CLK2,	6,	UINT_MAX, "pex-clk2"),	\
+	_pad(TEGRA_IO_PAD_PEX_CNTRL,	32,	UINT_MAX, "pex-cntrl"),	\
+	_pad(TEGRA_IO_PAD_SDMMC1,	33,	UINT_MAX, "sdmmc1"),	\
+	_pad(TEGRA_IO_PAD_SDMMC3,	34,	UINT_MAX, "sdmmc3"),	\
+	_pad(TEGRA_IO_PAD_SDMMC4,	35,	UINT_MAX, "sdmmc4"),	\
+	_pad(TEGRA_IO_PAD_SYS_DDC,	58,	UINT_MAX, "sys_ddc"),	\
+	_pad(TEGRA_IO_PAD_UART,		14,	UINT_MAX, "uart"),	\
+	_pad(TEGRA_IO_PAD_USB0,		9,	UINT_MAX, "usb0"),	\
+	_pad(TEGRA_IO_PAD_USB1,		10,	UINT_MAX, "usb1"),	\
+	_pad(TEGRA_IO_PAD_USB2,		11,	UINT_MAX, "usb2"),	\
+	_pad(TEGRA_IO_PAD_USB_BIAS,	12,	UINT_MAX, "usb_bias")
+
 static const struct tegra_io_pad_soc tegra124_io_pads[] = {
-	{ .id = TEGRA_IO_PAD_AUDIO, .dpd = 17, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_BB, .dpd = 15, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CAM, .dpd = 36, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_COMP, .dpd = 22, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIA, .dpd = 0, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIB, .dpd = 1, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIE, .dpd = 44, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSI, .dpd = 2, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSIB, .dpd = 39, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSIC, .dpd = 40, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSID, .dpd = 41, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HDMI, .dpd = 28, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HSIC, .dpd = 19, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HV, .dpd = 38, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_LVDS, .dpd = 57, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_MIPI_BIAS, .dpd = 3, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_NAND, .dpd = 13, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_BIAS, .dpd = 4, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK1, .dpd = 5, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK2, .dpd = 6, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CNTRL, .dpd = 32, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC1, .dpd = 33, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC3, .dpd = 34, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC4, .dpd = 35, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SYS_DDC, .dpd = 58, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_UART, .dpd = 14, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB0, .dpd = 9, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB1, .dpd = 10, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB2, .dpd = 11, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB_BIAS, .dpd = 12, .voltage = UINT_MAX },
+	TEGRA124_IO_PAD_TABLE(TEGRA_IO_PAD)
 };
 
 static const struct tegra_pmc_soc tegra124_pmc_soc = {
@@ -1779,45 +1792,49 @@ static const u8 tegra210_cpu_powergates[] = {
 	TEGRA_POWERGATE_CPU3,
 };
 
+#define TEGRA210_IO_PAD_TABLE(_pad)					   \
+	/*   .id                        .dpd     .voltage  .name */	   \
+	_pad(TEGRA_IO_PAD_AUDIO,       17,	 5,	   "audio"),	   \
+	_pad(TEGRA_IO_PAD_AUDIO_HV,    61,	 18,	   "audio-hv"),	   \
+	_pad(TEGRA_IO_PAD_CAM,	       36,	 10,	   "cam"),	   \
+	_pad(TEGRA_IO_PAD_CSIA,	       0,	 UINT_MAX, "csia"),	   \
+	_pad(TEGRA_IO_PAD_CSIB,	       1,	 UINT_MAX, "csib"),	   \
+	_pad(TEGRA_IO_PAD_CSIC,	       42,	 UINT_MAX, "csic"),	   \
+	_pad(TEGRA_IO_PAD_CSID,	       43,	 UINT_MAX, "csid"),	   \
+	_pad(TEGRA_IO_PAD_CSIE,	       44,	 UINT_MAX, "csie"),	   \
+	_pad(TEGRA_IO_PAD_CSIF,	       45,	 UINT_MAX, "csif"),	   \
+	_pad(TEGRA_IO_PAD_DBG,	       25,	 19,	   "dbg"),	   \
+	_pad(TEGRA_IO_PAD_DEBUG_NONAO, 26,	 UINT_MAX, "debug-nonao"), \
+	_pad(TEGRA_IO_PAD_DMIC,	       50,	 20,	   "dmic"),	   \
+	_pad(TEGRA_IO_PAD_DP,	       51,	 UINT_MAX, "dp"),	   \
+	_pad(TEGRA_IO_PAD_DSI,	       2,	 UINT_MAX, "dsi"),	   \
+	_pad(TEGRA_IO_PAD_DSIB,	       39,	 UINT_MAX, "dsib"),	   \
+	_pad(TEGRA_IO_PAD_DSIC,	       40,	 UINT_MAX, "dsic"),	   \
+	_pad(TEGRA_IO_PAD_DSID,	       41,	 UINT_MAX, "dsid"),	   \
+	_pad(TEGRA_IO_PAD_EMMC,	       35,	 UINT_MAX, "emmc"),	   \
+	_pad(TEGRA_IO_PAD_EMMC2,       37,	 UINT_MAX, "emmc2"),	   \
+	_pad(TEGRA_IO_PAD_GPIO,	       27,	 21,	   "gpio"),	   \
+	_pad(TEGRA_IO_PAD_HDMI,	       28,	 UINT_MAX, "hdmi"),	   \
+	_pad(TEGRA_IO_PAD_HSIC,	       19,	 UINT_MAX, "hsic"),	   \
+	_pad(TEGRA_IO_PAD_LVDS,	       57,	 UINT_MAX, "lvds"),	   \
+	_pad(TEGRA_IO_PAD_MIPI_BIAS,   3,	 UINT_MAX, "mipi-bias"),   \
+	_pad(TEGRA_IO_PAD_PEX_BIAS,    4,	 UINT_MAX, "pex-bias"),    \
+	_pad(TEGRA_IO_PAD_PEX_CLK1,    5,	 UINT_MAX, "pex-clk1"),    \
+	_pad(TEGRA_IO_PAD_PEX_CLK2,    6,	 UINT_MAX, "pex-clk2"),    \
+	_pad(TEGRA_IO_PAD_PEX_CNTRL,   UINT_MAX, 11,	   "pex-cntrl"),   \
+	_pad(TEGRA_IO_PAD_SDMMC1,      33,	 12,	   "sdmmc1"),	   \
+	_pad(TEGRA_IO_PAD_SDMMC3,      34,	 13,	   "sdmmc3"),	   \
+	_pad(TEGRA_IO_PAD_SPI,	       46,	 22,	   "spi"),	   \
+	_pad(TEGRA_IO_PAD_SPI_HV,      47,	 23,	   "spi-hv"),	   \
+	_pad(TEGRA_IO_PAD_UART,	       14,	 2,	   "uart"),	   \
+	_pad(TEGRA_IO_PAD_USB0,	       9,	 UINT_MAX, "usb0"),	   \
+	_pad(TEGRA_IO_PAD_USB1,	       10,	 UINT_MAX, "usb1"),	   \
+	_pad(TEGRA_IO_PAD_USB2,	       11,	 UINT_MAX, "usb2"),	   \
+	_pad(TEGRA_IO_PAD_USB3,	       18,	 UINT_MAX, "usb3"),	   \
+	_pad(TEGRA_IO_PAD_USB_BIAS,    12,	 UINT_MAX, "usb-bias")
+
 static const struct tegra_io_pad_soc tegra210_io_pads[] = {
-	{ .id = TEGRA_IO_PAD_AUDIO, .dpd = 17, .voltage = 5 },
-	{ .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = 18 },
-	{ .id = TEGRA_IO_PAD_CAM, .dpd = 36, .voltage = 10 },
-	{ .id = TEGRA_IO_PAD_CSIA, .dpd = 0, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIB, .dpd = 1, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIC, .dpd = 42, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSID, .dpd = 43, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIE, .dpd = 44, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIF, .dpd = 45, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DBG, .dpd = 25, .voltage = 19 },
-	{ .id = TEGRA_IO_PAD_DEBUG_NONAO, .dpd = 26, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DMIC, .dpd = 50, .voltage = 20 },
-	{ .id = TEGRA_IO_PAD_DP, .dpd = 51, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSI, .dpd = 2, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSIB, .dpd = 39, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSIC, .dpd = 40, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSID, .dpd = 41, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_EMMC, .dpd = 35, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_EMMC2, .dpd = 37, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_GPIO, .dpd = 27, .voltage = 21 },
-	{ .id = TEGRA_IO_PAD_HDMI, .dpd = 28, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HSIC, .dpd = 19, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_LVDS, .dpd = 57, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_MIPI_BIAS, .dpd = 3, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_BIAS, .dpd = 4, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK1, .dpd = 5, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK2, .dpd = 6, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CNTRL, .dpd = UINT_MAX, .voltage = 11 },
-	{ .id = TEGRA_IO_PAD_SDMMC1, .dpd = 33, .voltage = 12 },
-	{ .id = TEGRA_IO_PAD_SDMMC3, .dpd = 34, .voltage = 13 },
-	{ .id = TEGRA_IO_PAD_SPI, .dpd = 46, .voltage = 22 },
-	{ .id = TEGRA_IO_PAD_SPI_HV, .dpd = 47, .voltage = 23 },
-	{ .id = TEGRA_IO_PAD_UART, .dpd = 14, .voltage = 2 },
-	{ .id = TEGRA_IO_PAD_USB0, .dpd = 9, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB1, .dpd = 10, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB2, .dpd = 11, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB3, .dpd = 18, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB_BIAS, .dpd = 12, .voltage = UINT_MAX },
+	TEGRA210_IO_PAD_TABLE(TEGRA_IO_PAD)
 };
 
 static const struct tegra_pmc_soc tegra210_pmc_soc = {
@@ -1836,45 +1853,49 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = {
 	.setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
 };
 
+#define TEGRA186_IO_PAD_TABLE(_pad)					     \
+	/*   .id                        .dpd      .voltage  .name */	     \
+	_pad(TEGRA_IO_PAD_CSIA,		0,	  UINT_MAX, "csia"),	     \
+	_pad(TEGRA_IO_PAD_CSIB,		1,	  UINT_MAX, "csib"),	     \
+	_pad(TEGRA_IO_PAD_DSI,		2,	  UINT_MAX, "dsi"),	     \
+	_pad(TEGRA_IO_PAD_MIPI_BIAS,	3,	  UINT_MAX, "mipi-bias"),    \
+	_pad(TEGRA_IO_PAD_PEX_CLK_BIAS,	4,	  UINT_MAX, "pex-clk-bias"), \
+	_pad(TEGRA_IO_PAD_PEX_CLK3,	5,	  UINT_MAX, "pex-clk3"),     \
+	_pad(TEGRA_IO_PAD_PEX_CLK2,	6,	  UINT_MAX, "pex-clk2"),     \
+	_pad(TEGRA_IO_PAD_PEX_CLK1,	7,	  UINT_MAX, "pex-clk1"),     \
+	_pad(TEGRA_IO_PAD_USB0,		9,	  UINT_MAX, "usb0"),	     \
+	_pad(TEGRA_IO_PAD_USB1,		10,	  UINT_MAX, "usb1"),	     \
+	_pad(TEGRA_IO_PAD_USB2,		11,	  UINT_MAX, "usb2"),	     \
+	_pad(TEGRA_IO_PAD_USB_BIAS,	12,	  UINT_MAX, "usb-bias"),     \
+	_pad(TEGRA_IO_PAD_UART,		14,	  UINT_MAX, "uart"),	     \
+	_pad(TEGRA_IO_PAD_AUDIO,	17,	  UINT_MAX, "audio"),	     \
+	_pad(TEGRA_IO_PAD_HSIC,		19,	  UINT_MAX, "hsic"),	     \
+	_pad(TEGRA_IO_PAD_DBG,		25,	  UINT_MAX, "dbg"),	     \
+	_pad(TEGRA_IO_PAD_HDMI_DP0,	28,	  UINT_MAX, "hdmi-dp0"),     \
+	_pad(TEGRA_IO_PAD_HDMI_DP1,	29,	  UINT_MAX, "hdmi-dp1"),     \
+	_pad(TEGRA_IO_PAD_PEX_CNTRL,	32,	  UINT_MAX, "pex-cntrl"),    \
+	_pad(TEGRA_IO_PAD_SDMMC2_HV,	34,	  5,	    "sdmmc2-hv"),    \
+	_pad(TEGRA_IO_PAD_SDMMC4,	36,	  UINT_MAX, "sdmmc4"),	     \
+	_pad(TEGRA_IO_PAD_CAM,		38,	  UINT_MAX, "cam"),	     \
+	_pad(TEGRA_IO_PAD_DSIB,		40,	  UINT_MAX, "dsib"),	     \
+	_pad(TEGRA_IO_PAD_DSIC,		41,	  UINT_MAX, "dsic"),	     \
+	_pad(TEGRA_IO_PAD_DSID,		42,	  UINT_MAX, "dsid"),	     \
+	_pad(TEGRA_IO_PAD_CSIC,		43,	  UINT_MAX, "csic"),	     \
+	_pad(TEGRA_IO_PAD_CSID,		44,	  UINT_MAX, "csid"),	     \
+	_pad(TEGRA_IO_PAD_CSIE,		45,	  UINT_MAX, "csie"),	     \
+	_pad(TEGRA_IO_PAD_CSIF,		46,	  UINT_MAX, "csif"),	     \
+	_pad(TEGRA_IO_PAD_SPI,		47,	  UINT_MAX, "spi"),	     \
+	_pad(TEGRA_IO_PAD_UFS,		49,	  UINT_MAX, "ufs"),	     \
+	_pad(TEGRA_IO_PAD_DMIC_HV,	52,	  2,	    "dmic-hv"),	     \
+	_pad(TEGRA_IO_PAD_EDP,		53,	  UINT_MAX, "edp"),	     \
+	_pad(TEGRA_IO_PAD_SDMMC1_HV,	55,	  4,	    "sdmmc1-hv"),    \
+	_pad(TEGRA_IO_PAD_SDMMC3_HV,	56,	  6,	    "sdmmc3-hv"),    \
+	_pad(TEGRA_IO_PAD_CONN,		60,	  UINT_MAX, "conn"),	     \
+	_pad(TEGRA_IO_PAD_AUDIO_HV,	61,	  1,	    "audio-hv"),     \
+	_pad(TEGRA_IO_PAD_AO_HV,	UINT_MAX, 0,	    "ao-hv")
+
 static const struct tegra_io_pad_soc tegra186_io_pads[] = {
-	{ .id = TEGRA_IO_PAD_CSIA, .dpd = 0, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIB, .dpd = 1, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSI, .dpd = 2, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_MIPI_BIAS, .dpd = 3, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK_BIAS, .dpd = 4, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK3, .dpd = 5, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK2, .dpd = 6, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CLK1, .dpd = 7, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB0, .dpd = 9, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB1, .dpd = 10, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB2, .dpd = 11, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_USB_BIAS, .dpd = 12, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_UART, .dpd = 14, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_AUDIO, .dpd = 17, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HSIC, .dpd = 19, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DBG, .dpd = 25, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HDMI_DP0, .dpd = 28, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_HDMI_DP1, .dpd = 29, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_PEX_CNTRL, .dpd = 32, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC2_HV, .dpd = 34, .voltage = 5 },
-	{ .id = TEGRA_IO_PAD_SDMMC4, .dpd = 36, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CAM, .dpd = 38, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSIB, .dpd = 40, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSIC, .dpd = 41, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DSID, .dpd = 42, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIC, .dpd = 43, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSID, .dpd = 44, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIE, .dpd = 45, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_CSIF, .dpd = 46, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SPI, .dpd = 47, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_UFS, .dpd = 49, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_DMIC_HV, .dpd = 52, .voltage = 2 },
-	{ .id = TEGRA_IO_PAD_EDP, .dpd = 53, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_SDMMC1_HV, .dpd = 55, .voltage = 4 },
-	{ .id = TEGRA_IO_PAD_SDMMC3_HV, .dpd = 56, .voltage = 6 },
-	{ .id = TEGRA_IO_PAD_CONN, .dpd = 60, .voltage = UINT_MAX },
-	{ .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = 1 },
-	{ .id = TEGRA_IO_PAD_AO_HV, .dpd = UINT_MAX, .voltage = 0 },
+	TEGRA186_IO_PAD_TABLE(TEGRA_IO_PAD)
 };
 
 static const struct tegra_pmc_regs tegra186_pmc_regs = {
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* [PATCH v2 5/7] dt-bindings: Add Tegra PMC pad configuration bindings
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
                   ` (3 preceding siblings ...)
  2018-07-11 14:01 ` [PATCH v2 4/7] soc/tegra: pmc: Use X macro to generate IO pad tables Aapo Vienamo
@ 2018-07-11 14:05 ` Aapo Vienamo
  2018-07-11 14:05 ` [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo
  2018-07-11 14:06 ` [PATCH v2 7/7] soc/tegra: pmc: Implement pad configuration via pinctrl Aapo Vienamo
  6 siblings, 0 replies; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:05 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Document the pinctrl bindings used by the PMC driver for performing pad
configuration. Both nvidia,tegra186-pmc.txt and nvidia,tegra20-pmc.txt
are modified as they both cover SoC generations for which these bindings
apply.

Add a header defining Tegra PMC pad voltage configurations.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
---
 .../bindings/arm/tegra/nvidia,tegra186-pmc.txt     | 84 +++++++++++++++++++
 .../bindings/arm/tegra/nvidia,tegra20-pmc.txt      | 95 ++++++++++++++++++++++
 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h | 18 ++++
 3 files changed, 197 insertions(+)
 create mode 100644 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h

diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt
index 5a3bf7c..9528f41 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.txt
@@ -34,3 +34,87 @@ Board DTS:
 	pmc@c360000 {
 		nvidia,invert-interrupt;
 	};
+
+== Pad Control Nodes ==
+
+The PMC can be used to set pad power state and voltage configuration.
+The pad configuration is done via the pinctrl framework. The driver
+implements power-source, low-power-enable, and low-power-disable pinconf
+pin configuration node properties. Each pinctrl pin corresponds to a
+single Tegra PMC pad. Thus, in the following sections of this document
+pin refers to the pinctrl frameworks notion of a Tegra PMC pad.
+
+The pad configuration state nodes are placed under the pmc node and they
+are referred to by the pinctrl client device properties. For more
+information see the examples presented later and
+Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt.
+
+The values accepted by power-source property are
+TEGRA_IO_PAD_VOLTAGE_1V8 and TEGRA_IO_PAD_VOLTAGE_3V3, which are defined
+in dt-bindings/pinctrl/pinctrl-tegra-io-pad.h.
+
+Following pinctrl pin name strings are present on Tegra186:
+csia		csib		dsi		mipi-bias
+pex-clk-bias	pex-clk3	pex-clk2	pex-clk1
+usb0		usb1		usb2		usb-bias
+uart		audio		hsic		dbg
+hdmi-dp0	hdmi-dp1	pex-cntrl	sdmmc2-hv
+sdmmc4		cam		dsib		dsic
+dsid		csic		csid		csie
+dsif		spi		ufs		dmic-hv
+edp		sdmmc1-hv	sdmmc3-hv	conn
+audio-hv	ao-hv
+
+All of the listed Tegra186 pins except ao-hv support the
+low-power-enable and low-power-disable properties. The power-source
+property is supported following Tegra210 pins: sdmmc2-hv, dmic-hv,
+sdmmc1-hv, sdmmc3-hv, audio-hv, ao-hv.
+
+Pad configuration state example:
+	pmc: pmc@7000e400 {
+		compatible = "nvidia,tegra186-pmc";
+		reg = <0 0x0c360000 0 0x10000>,
+		      <0 0x0c370000 0 0x10000>,
+		      <0 0x0c380000 0 0x10000>,
+		      <0 0x0c390000 0 0x10000>;
+		reg-names = "pmc", "wake", "aotag", "scratch";
+
+		...
+
+		sdmmc1_3v3: sdmmc1-3v3 {
+			pins = "sdmmc1-hv";
+			power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>;
+		};
+
+		sdmmc1_1v8: sdmmc1-1v8 {
+			pins = "sdmmc1-hv";
+			power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>;
+		};
+
+		hdmi_off: hdmi-off {
+			pins = "hdmi";
+			low-power-enable;
+		}
+
+		hdmi_on: hdmi-on {
+			pins = "hdmi";
+			low-power-disable;
+		}
+	};
+
+Pinctrl client example:
+	sdmmc1: sdhci@3400000 {
+		...
+		pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
+		pinctrl-0 = <&sdmmc1_3v3>;
+		pinctrl-1 = <&sdmmc1_1v8>;
+	};
+
+	...
+
+	sor0: sor@15540000 {
+		...
+		pinctrl-0 = <&hdmi_off>;
+		pinctrl-1 = <&hdmi_on>;
+		pinctrl-names = "hdmi-on", "hdmi-off";
+	};
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
index a74b37b..d50a505 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
@@ -195,3 +195,98 @@ Example:
 		power-domains = <&pd_audio>;
 		...
 	};
+
+== Pad Control Nodes ==
+
+The PMC can be used to set pad power state and voltage configuration.
+This functionality is present on SoCs from Tegra124 onwards. The pad
+configuration is done via the pinctrl framework. The driver implements
+power-source, low-power-enable, and low-power-disable pinconf pin
+configuration node properties. Each pinctrl pin corresponds to a single
+Tegra PMC pad. Thus, in the following sections of this document pin
+refers to the pinctrl frameworks notion of a Tegra PMC pad.
+
+The pad configuration state nodes are placed under the pmc node and they
+are referred to by the pinctrl client device properties. For more
+information see the examples presented later and
+Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt.
+
+The values accepted by power-source property are
+TEGRA_IO_PAD_VOLTAGE_1V8 and TEGRA_IO_PAD_VOLTAGE_3V3, which are defined
+in dt-bindings/pinctrl/pinctrl-tegra-io-pad.h.
+
+Following pinctrl pin name strings are present on Tegra124 and Tegra132:
+audio		bb		cam		comp
+csia		csb		cse		dsi
+dsib		dsic		dsid		hdmi
+hsic		hv		lvds		mipi-bias
+nand		pex-bias	pex-clk1	pex-clk2
+pex-cntrl	sdmmc1		sdmmc3		sdmmc4
+sys_ddc		uart		usb0		usb1
+usb2		usb_bias
+
+All of the listed Tegra124 and Tegra132 pins support the
+low-power-enable and low-power-disable properties. None of the pins
+support the power-source property.
+
+Following pinctrl pin name strings are present on Tegra210:
+audio		audio-hv	cam		csia
+csib		csic		csid		csie
+csif		dbg		debug-nonao	dmic
+dp		dsi		dsib		dsic
+dsid		emmc		emmc2		gpio
+hdmi		hsic		lvds		mipi-bias
+pex-bias	pex-clk1	pex-clk2	pex-cntrl
+sdmmc1		sdmmc3		spi		spi-hv
+uart		usb0		usb1		usb2
+usb3		usb-bias
+
+All of the listed Tegra210 pins except pex-cntrl support the
+low-power-enable and low-power-disable properties. The power-source
+property is supported following Tegra210 pins: audio, audio-hv, cam,
+dbg, dmic, gpio, pex-cntrl, sdmmc1, sdmmc3, spi, spi-hv, and uart.
+
+Pad configuration state example:
+	pmc: pmc@7000e400 {
+		compatible = "nvidia,tegra210-pmc";
+		reg = <0x0 0x7000e400 0x0 0x400>;
+		clocks = <&tegra_car TEGRA210_CLK_PCLK>, <&clk32k_in>;
+		clock-names = "pclk", "clk32k_in";
+
+		...
+
+		sdmmc1_3v3: sdmmc1-3v3 {
+			pins = "sdmmc1";
+			power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>;
+		};
+
+		sdmmc1_1v8: sdmmc1-1v8 {
+			pins = "sdmmc1";
+			power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>;
+		};
+
+		hdmi_off: hdmi-off {
+			pins = "hdmi";
+			low-power-enable;
+		}
+
+		hdmi_on: hdmi-on {
+			pins = "hdmi";
+			low-power-disable;
+		}
+	};
+
+Pinctrl client example:
+	sdmmc1: sdhci@700b0000 {
+		...
+		pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
+		pinctrl-0 = <&sdmmc1_3v3>;
+		pinctrl-1 = <&sdmmc1_1v8>;
+	};
+	...
+	sor@54540000 {
+		...
+		pinctrl-0 = <&hdmi_off>;
+		pinctrl-1 = <&hdmi_on>;
+		pinctrl-names = "hdmi-on", "hdmi-off";
+	};
diff --git a/include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h b/include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h
new file mode 100644
index 0000000..20f4340
--- /dev/null
+++ b/include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * pinctrl-tegra-io-pad.h: Tegra I/O pad source voltage configuration constants
+ * pinctrl bindings.
+ *
+ * Copyright (c) 2018, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Author: Aapo Vienamo <avienamo@nvidia.com>
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_TEGRA_IO_PAD_H
+#define _DT_BINDINGS_PINCTRL_TEGRA_IO_PAD_H
+
+/* Voltage levels of the I/O pad's source rail */
+#define TEGRA_IO_PAD_VOLTAGE_1V8	0
+#define TEGRA_IO_PAD_VOLTAGE_3V3	1
+
+#endif
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
                   ` (4 preceding siblings ...)
  2018-07-11 14:05 ` [PATCH v2 5/7] dt-bindings: Add Tegra PMC pad configuration bindings Aapo Vienamo
@ 2018-07-11 14:05 ` Aapo Vienamo
  2018-07-11 15:30   ` Jon Hunter
  2018-07-12  0:05   ` kbuild test robot
  2018-07-11 14:06 ` [PATCH v2 7/7] soc/tegra: pmc: Implement pad configuration via pinctrl Aapo Vienamo
  6 siblings, 2 replies; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:05 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Make tegra_io_pad_set_voltage() and tegra_io_pad_get_voltage() static
and remove the prototypes from pmc.h. Remove enum tegra_io_pad_voltage
and use the defines from <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
instead.

These functions aren't used outside of the pmc driver and new use cases
should use the pinctrl interface instead.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 17 ++++++++---------
 include/soc/tegra/pmc.h | 13 -------------
 2 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index f68dbfa..8926831 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -45,6 +45,8 @@
 #include <soc/tegra/fuse.h>
 #include <soc/tegra/pmc.h>
 
+#include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
+
 #define PMC_CNTRL			0x0
 #define  PMC_CNTRL_INTR_POLARITY	BIT(17) /* inverts INTR polarity */
 #define  PMC_CNTRL_CPU_PWRREQ_OE	BIT(16) /* CPU pwr req enable */
@@ -1093,8 +1095,7 @@ int tegra_io_pad_is_powered(enum tegra_io_pad id)
 }
 EXPORT_SYMBOL(tegra_io_pad_is_powered);
 
-int tegra_io_pad_set_voltage(enum tegra_io_pad id,
-			     enum tegra_io_pad_voltage voltage)
+static int tegra_io_pad_set_voltage(enum tegra_io_pad id, int voltage)
 {
 	const struct tegra_io_pad_soc *pad;
 	u32 value;
@@ -1110,7 +1111,7 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
 
 	if (pmc->soc->has_impl_33v_pwr) {
 		value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR);
-		if (voltage == TEGRA_IO_PAD_1800000UV)
+		if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
 			value &= ~BIT(pad->voltage);
 		else
 			value |= BIT(pad->voltage);
@@ -1124,7 +1125,7 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
 		/* update I/O voltage */
 		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
 
-		if (voltage == TEGRA_IO_PAD_1800000UV)
+		if (voltage == TEGRA_IO_PAD_VOLTAGE_3V3)
 			value &= ~BIT(pad->voltage);
 		else
 			value |= BIT(pad->voltage);
@@ -1138,9 +1139,8 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
 
 	return 0;
 }
-EXPORT_SYMBOL(tegra_io_pad_set_voltage);
 
-int tegra_io_pad_get_voltage(enum tegra_io_pad id)
+static int tegra_io_pad_get_voltage(enum tegra_io_pad id)
 {
 	const struct tegra_io_pad_soc *pad;
 	u32 value;
@@ -1158,11 +1158,10 @@ int tegra_io_pad_get_voltage(enum tegra_io_pad id)
 		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
 
 	if ((value & BIT(pad->voltage)) == 0)
-		return TEGRA_IO_PAD_1800000UV;
+		return TEGRA_IO_PAD_VOLTAGE_1V8;
 
-	return TEGRA_IO_PAD_3300000UV;
+	return TEGRA_IO_PAD_VOLTAGE_3V3;
 }
-EXPORT_SYMBOL(tegra_io_pad_get_voltage);
 
 /**
  * tegra_io_rail_power_on() - enable power to I/O rail
diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
index 14206e8..b6294f6 100644
--- a/include/soc/tegra/pmc.h
+++ b/include/soc/tegra/pmc.h
@@ -141,16 +141,6 @@ enum tegra_io_pad {
 #define TEGRA_IO_RAIL_HDMI	TEGRA_IO_PAD_HDMI
 #define TEGRA_IO_RAIL_LVDS	TEGRA_IO_PAD_LVDS
 
-/**
- * enum tegra_io_pad_voltage - voltage level of the I/O pad's source rail
- * @TEGRA_IO_PAD_1800000UV: 1.8 V
- * @TEGRA_IO_PAD_3300000UV: 3.3 V
- */
-enum tegra_io_pad_voltage {
-	TEGRA_IO_PAD_1800000UV,
-	TEGRA_IO_PAD_3300000UV,
-};
-
 #ifdef CONFIG_SOC_TEGRA_PMC
 int tegra_powergate_is_powered(unsigned int id);
 int tegra_powergate_power_on(unsigned int id);
@@ -164,9 +154,6 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
 int tegra_io_pad_power_enable(enum tegra_io_pad id);
 int tegra_io_pad_power_disable(enum tegra_io_pad id);
 int tegra_io_pad_is_powered(enum tegra_io_pad id);
-int tegra_io_pad_set_voltage(enum tegra_io_pad id,
-			     enum tegra_io_pad_voltage voltage);
-int tegra_io_pad_get_voltage(enum tegra_io_pad id);
 
 /* deprecated, use tegra_io_pad_power_{enable,disable}() instead */
 int tegra_io_rail_power_on(unsigned int id);
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* [PATCH v2 7/7] soc/tegra: pmc: Implement pad configuration via pinctrl
  2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
                   ` (5 preceding siblings ...)
  2018-07-11 14:05 ` [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo
@ 2018-07-11 14:06 ` Aapo Vienamo
  6 siblings, 0 replies; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-11 14:06 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Thierry Reding, Jonathan Hunter,
	Mikko Perttunen
  Cc: Aapo Vienamo, devicetree, linux-tegra, linux-kernel

Register a pinctrl device and implement get and set functions for
PIN_CONFIG_LOW_POWER_MODE and PIN_CONFIG_POWER_SOURCE parameters.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 187 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 185 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 8926831..ff72948 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -33,6 +33,9 @@
 #include <linux/of_address.h>
 #include <linux/of_clk.h>
 #include <linux/of_platform.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <linux/reboot.h>
@@ -164,6 +167,9 @@ struct tegra_pmc_soc {
 	const struct tegra_io_pad_soc *io_pads;
 	unsigned int num_io_pads;
 
+	const struct pinctrl_pin_desc *pin_descs;
+	unsigned int num_pin_descs;
+
 	const struct tegra_pmc_regs *regs;
 	void (*init)(struct tegra_pmc *pmc);
 	void (*setup_irq_polarity)(struct tegra_pmc *pmc,
@@ -222,6 +228,8 @@ struct tegra_pmc {
 	DECLARE_BITMAP(powergates_available, TEGRA_POWERGATE_MAX);
 
 	struct mutex powergates_lock;
+
+	struct pinctrl_dev *pctl_dev;
 };
 
 static struct tegra_pmc *pmc = &(struct tegra_pmc) {
@@ -1399,6 +1407,142 @@ static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc)
 	of_node_put(np);
 }
 
+static int tegra_io_pad_pinctrl_get_groups_count(struct pinctrl_dev *pctl_dev)
+{
+	return pmc->soc->num_io_pads;
+}
+
+static const char *tegra_io_pad_pinctrl_get_group_name(
+		struct pinctrl_dev *pctl, unsigned int group)
+{
+	return pmc->soc->io_pads[group].name;
+}
+
+static int tegra_io_pad_pinctrl_get_group_pins(struct pinctrl_dev *pctl_dev,
+					       unsigned int group,
+					       const unsigned int **pins,
+					       unsigned int *num_pins)
+{
+	*pins = &pmc->soc->io_pads[group].id;
+	*num_pins = 1;
+	return 0;
+}
+
+static const struct pinctrl_ops tegra_io_pad_pinctrl_ops = {
+	.get_groups_count = tegra_io_pad_pinctrl_get_groups_count,
+	.get_group_name = tegra_io_pad_pinctrl_get_group_name,
+	.get_group_pins = tegra_io_pad_pinctrl_get_group_pins,
+	.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
+	.dt_free_map = pinconf_generic_dt_free_map,
+};
+
+static int tegra_io_pad_pinconf_get(struct pinctrl_dev *pctl_dev,
+				    unsigned int pin, unsigned long *config)
+{
+	const struct tegra_io_pad_soc *pad = tegra_io_pad_find(pmc, pin);
+	enum pin_config_param param = pinconf_to_config_param(*config);
+	int ret;
+	u32 arg;
+
+	if (!pad)
+		return -EINVAL;
+
+	switch (param) {
+	case PIN_CONFIG_POWER_SOURCE:
+		ret = tegra_io_pad_get_voltage(pad->id);
+		if (ret < 0)
+			return ret;
+		arg = ret;
+		break;
+	case PIN_CONFIG_LOW_POWER_MODE:
+		ret = tegra_io_pad_is_powered(pad->id);
+		if (ret < 0)
+			return ret;
+		arg = !ret;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	*config = pinconf_to_config_packed(param, arg);
+
+	return 0;
+}
+
+static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev,
+				    unsigned int pin, unsigned long *configs,
+				    unsigned int num_configs)
+{
+	const struct tegra_io_pad_soc *pad = tegra_io_pad_find(pmc, pin);
+	enum pin_config_param param;
+	unsigned int i;
+	int err;
+	u32 arg;
+
+	if (!pad)
+		return -EINVAL;
+
+	for (i = 0; i < num_configs; ++i) {
+		param = pinconf_to_config_param(configs[i]);
+		arg = pinconf_to_config_argument(configs[i]);
+
+		switch (param) {
+		case PIN_CONFIG_LOW_POWER_MODE:
+			if (arg)
+				err = tegra_io_pad_power_disable(pad->id);
+			else
+				err = tegra_io_pad_power_enable(pad->id);
+			if (err)
+				return err;
+			break;
+		case PIN_CONFIG_POWER_SOURCE:
+			if (arg != TEGRA_IO_PAD_VOLTAGE_1V8 &&
+			    arg != TEGRA_IO_PAD_VOLTAGE_3V3)
+				return -EINVAL;
+			err = tegra_io_pad_set_voltage(pad->id, arg);
+			if (err)
+				return err;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static const struct pinconf_ops tegra_io_pad_pinconf_ops = {
+	.pin_config_get = tegra_io_pad_pinconf_get,
+	.pin_config_set = tegra_io_pad_pinconf_set,
+	.is_generic = true,
+};
+
+static struct pinctrl_desc tegra_pmc_pctl_desc = {
+	.pctlops = &tegra_io_pad_pinctrl_ops,
+	.confops = &tegra_io_pad_pinconf_ops,
+};
+
+static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc)
+{
+	int err = 0;
+
+	if (!pmc->soc->num_pin_descs)
+		return 0;
+
+	tegra_pmc_pctl_desc.name = dev_name(pmc->dev);
+	tegra_pmc_pctl_desc.pins = pmc->soc->pin_descs;
+	tegra_pmc_pctl_desc.npins = pmc->soc->num_pin_descs;
+
+	pmc->pctl_dev = devm_pinctrl_register(pmc->dev, &tegra_pmc_pctl_desc,
+					      pmc);
+	if (IS_ERR(pmc->pctl_dev)) {
+		err = PTR_ERR(pmc->pctl_dev);
+		dev_err(pmc->dev, "unable to register pinctrl, %d\n", err);
+	}
+
+	return err;
+}
+
 static int tegra_pmc_probe(struct platform_device *pdev)
 {
 	void __iomem *base;
@@ -1476,18 +1620,27 @@ static int tegra_pmc_probe(struct platform_device *pdev)
 
 	err = register_restart_handler(&tegra_pmc_restart_handler);
 	if (err) {
-		debugfs_remove(pmc->debugfs);
 		dev_err(&pdev->dev, "unable to register restart handler, %d\n",
 			err);
-		return err;
+		goto cleanup_debugfs;
 	}
 
+	err = tegra_pmc_pinctrl_init(pmc);
+	if (err)
+		goto cleanup_restart_handler;
+
 	mutex_lock(&pmc->powergates_lock);
 	iounmap(pmc->base);
 	pmc->base = base;
 	mutex_unlock(&pmc->powergates_lock);
 
 	return 0;
+
+cleanup_restart_handler:
+	unregister_restart_handler(&tegra_pmc_restart_handler);
+cleanup_debugfs:
+	debugfs_remove(pmc->debugfs);
+	return err;
 }
 
 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
@@ -1577,6 +1730,8 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = {
 	.has_gpu_clamps = false,
 	.num_io_pads = 0,
 	.io_pads = NULL,
+	.num_pin_descs = 0,
+	.pin_descs = NULL,
 	.regs = &tegra20_pmc_regs,
 	.init = tegra20_pmc_init,
 	.setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
@@ -1616,6 +1771,8 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = {
 	.has_impl_33v_pwr = false,
 	.num_io_pads = 0,
 	.io_pads = NULL,
+	.num_pin_descs = 0,
+	.pin_descs = NULL,
 	.regs = &tegra20_pmc_regs,
 	.init = tegra20_pmc_init,
 	.setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
@@ -1659,6 +1816,8 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = {
 	.has_impl_33v_pwr = false,
 	.num_io_pads = 0,
 	.io_pads = NULL,
+	.num_pin_descs = 0,
+	.pin_descs = NULL,
 	.regs = &tegra20_pmc_regs,
 	.init = tegra20_pmc_init,
 	.setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
@@ -1705,6 +1864,12 @@ static const u8 tegra124_cpu_powergates[] = {
 		.name	= (_name),			\
 	})
 
+#define TEGRA_IO_PIN_DESC(_id, _dpd, _voltage, _name)	\
+	((struct pinctrl_pin_desc) {			\
+		.number = (_id),			\
+		.name	= (_name)			\
+	})
+
 #define TEGRA124_IO_PAD_TABLE(_pad)					\
 	/* .id                          .dpd    .voltage  .name	*/	\
 	_pad(TEGRA_IO_PAD_AUDIO,	17,	UINT_MAX, "audio"),	\
@@ -1742,6 +1907,10 @@ static const struct tegra_io_pad_soc tegra124_io_pads[] = {
 	TEGRA124_IO_PAD_TABLE(TEGRA_IO_PAD)
 };
 
+static const struct pinctrl_pin_desc tegra124_pin_descs[] = {
+	TEGRA124_IO_PAD_TABLE(TEGRA_IO_PIN_DESC)
+};
+
 static const struct tegra_pmc_soc tegra124_pmc_soc = {
 	.num_powergates = ARRAY_SIZE(tegra124_powergates),
 	.powergates = tegra124_powergates,
@@ -1752,6 +1921,8 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = {
 	.has_impl_33v_pwr = false,
 	.num_io_pads = ARRAY_SIZE(tegra124_io_pads),
 	.io_pads = tegra124_io_pads,
+	.num_pin_descs = ARRAY_SIZE(tegra124_pin_descs),
+	.pin_descs = tegra124_pin_descs,
 	.regs = &tegra20_pmc_regs,
 	.init = tegra20_pmc_init,
 	.setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
@@ -1836,6 +2007,10 @@ static const struct tegra_io_pad_soc tegra210_io_pads[] = {
 	TEGRA210_IO_PAD_TABLE(TEGRA_IO_PAD)
 };
 
+static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
+	TEGRA210_IO_PAD_TABLE(TEGRA_IO_PIN_DESC)
+};
+
 static const struct tegra_pmc_soc tegra210_pmc_soc = {
 	.num_powergates = ARRAY_SIZE(tegra210_powergates),
 	.powergates = tegra210_powergates,
@@ -1847,6 +2022,8 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = {
 	.needs_mbist_war = true,
 	.num_io_pads = ARRAY_SIZE(tegra210_io_pads),
 	.io_pads = tegra210_io_pads,
+	.num_pin_descs = ARRAY_SIZE(tegra210_pin_descs),
+	.pin_descs = tegra210_pin_descs,
 	.regs = &tegra20_pmc_regs,
 	.init = tegra20_pmc_init,
 	.setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
@@ -1897,6 +2074,10 @@ static const struct tegra_io_pad_soc tegra186_io_pads[] = {
 	TEGRA186_IO_PAD_TABLE(TEGRA_IO_PAD)
 };
 
+static const struct pinctrl_pin_desc tegra186_pin_descs[] = {
+	TEGRA186_IO_PAD_TABLE(TEGRA_IO_PIN_DESC)
+};
+
 static const struct tegra_pmc_regs tegra186_pmc_regs = {
 	.scratch0 = 0x2000,
 	.dpd_req = 0x74,
@@ -1950,6 +2131,8 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = {
 	.has_impl_33v_pwr = true,
 	.num_io_pads = ARRAY_SIZE(tegra186_io_pads),
 	.io_pads = tegra186_io_pads,
+	.num_pin_descs = ARRAY_SIZE(tegra186_pin_descs),
+	.pin_descs = tegra186_pin_descs,
 	.regs = &tegra186_pmc_regs,
 	.init = NULL,
 	.setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  2018-07-11 14:01 ` [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered() Aapo Vienamo
@ 2018-07-11 15:23   ` Jon Hunter
  2018-07-11 15:26     ` Jon Hunter
  0 siblings, 1 reply; 15+ messages in thread
From: Jon Hunter @ 2018-07-11 15:23 UTC (permalink / raw)
  To: Aapo Vienamo, Rob Herring, Mark Rutland, Thierry Reding, Mikko Perttunen
  Cc: devicetree, linux-tegra, linux-kernel


On 11/07/18 15:01, Aapo Vienamo wrote:
> Implement a function to query whether a pad is in deep power down mode.
Can you elaborate on why this public function is needed and who will be
using this?

Cheers
Jon

-- 
nvpublic

^ permalink raw reply	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  2018-07-11 15:23   ` Jon Hunter
@ 2018-07-11 15:26     ` Jon Hunter
  2018-07-12  7:52       ` Aapo Vienamo
  0 siblings, 1 reply; 15+ messages in thread
From: Jon Hunter @ 2018-07-11 15:26 UTC (permalink / raw)
  To: Aapo Vienamo, Rob Herring, Mark Rutland, Thierry Reding, Mikko Perttunen
  Cc: devicetree, linux-tegra, linux-kernel


On 11/07/18 16:23, Jon Hunter wrote:
> 
> On 11/07/18 15:01, Aapo Vienamo wrote:
>> Implement a function to query whether a pad is in deep power down mode.
> Can you elaborate on why this public function is needed and who will be
> using this?

Or I should say does this need to be public?

Jon

-- 
nvpublic

^ permalink raw reply	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186
  2018-07-11 14:01 ` [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo
@ 2018-07-11 15:27   ` Jon Hunter
  0 siblings, 0 replies; 15+ messages in thread
From: Jon Hunter @ 2018-07-11 15:27 UTC (permalink / raw)
  To: Aapo Vienamo, Rob Herring, Mark Rutland, Thierry Reding, Mikko Perttunen
  Cc: devicetree, linux-tegra, linux-kernel


On 11/07/18 15:01, Aapo Vienamo wrote:
> Implement support for the PMC_IMPL_E_33V_PWR register which replaces
> PMC_PWR_DET register interface of the SoC generations preceding
> Tegra186. Also add the voltage bit offsets to the tegra186_io_pads[]
> table and the AO_HV pad.
> 
> Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
> ---
>  drivers/soc/tegra/pmc.c | 55 ++++++++++++++++++++++++++++++++++---------------
>  include/soc/tegra/pmc.h |  1 +
>  2 files changed, 39 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
> index 2d6f3fc..f926332 100644
> --- a/drivers/soc/tegra/pmc.c
> +++ b/drivers/soc/tegra/pmc.c
> @@ -65,6 +65,8 @@
>  
>  #define PWRGATE_STATUS			0x38
>  
> +#define PMC_IMPL_E_33V_PWR		0x40
> +
>  #define PMC_PWR_DET			0x48
>  
>  #define PMC_SCRATCH0_MODE_RECOVERY	BIT(31)
> @@ -154,6 +156,7 @@ struct tegra_pmc_soc {
>  	bool has_tsense_reset;
>  	bool has_gpu_clamps;
>  	bool needs_mbist_war;
> +	bool has_impl_33v_pwr;
>  
>  	const struct tegra_io_pad_soc *io_pads;
>  	unsigned int num_io_pads;
> @@ -1073,20 +1076,29 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
>  
>  	mutex_lock(&pmc->powergates_lock);
>  
> -	/* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
> -	value = tegra_pmc_readl(PMC_PWR_DET);
> -	value |= BIT(pad->voltage);
> -	tegra_pmc_writel(value, PMC_PWR_DET);
> +	if (pmc->soc->has_impl_33v_pwr) {
> +		value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR);
> +		if (voltage == TEGRA_IO_PAD_1800000UV)
> +			value &= ~BIT(pad->voltage);
> +		else
> +			value |= BIT(pad->voltage);
> +		tegra_pmc_writel(value, PMC_IMPL_E_33V_PWR);
> +	} else {
> +		/* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
> +		value = tegra_pmc_readl(PMC_PWR_DET);
> +		value |= BIT(pad->voltage);
> +		tegra_pmc_writel(value, PMC_PWR_DET);
>  
> -	/* update I/O voltage */
> -	value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
> +		/* update I/O voltage */
> +		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
>  
> -	if (voltage == TEGRA_IO_PAD_1800000UV)
> -		value &= ~BIT(pad->voltage);
> -	else
> -		value |= BIT(pad->voltage);
> +		if (voltage == TEGRA_IO_PAD_1800000UV)
> +			value &= ~BIT(pad->voltage);
> +		else
> +			value |= BIT(pad->voltage);
>  
> -	tegra_pmc_writel(value, PMC_PWR_DET_VALUE);
> +		tegra_pmc_writel(value, PMC_PWR_DET_VALUE);
> +	}
>  
>  	mutex_unlock(&pmc->powergates_lock);
>  
> @@ -1108,7 +1120,10 @@ int tegra_io_pad_get_voltage(enum tegra_io_pad id)
>  	if (pad->voltage == UINT_MAX)
>  		return -ENOTSUPP;
>  
> -	value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
> +	if (pmc->soc->has_impl_33v_pwr)
> +		value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR);
> +	else
> +		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
>  
>  	if ((value & BIT(pad->voltage)) == 0)
>  		return TEGRA_IO_PAD_1800000UV;
> @@ -1567,6 +1582,7 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = {
>  	.cpu_powergates = tegra30_cpu_powergates,
>  	.has_tsense_reset = true,
>  	.has_gpu_clamps = false,
> +	.has_impl_33v_pwr = false,
>  	.num_io_pads = 0,
>  	.io_pads = NULL,
>  	.regs = &tegra20_pmc_regs,
> @@ -1609,6 +1625,7 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = {
>  	.cpu_powergates = tegra114_cpu_powergates,
>  	.has_tsense_reset = true,
>  	.has_gpu_clamps = false,
> +	.has_impl_33v_pwr = false,
>  	.num_io_pads = 0,
>  	.io_pads = NULL,
>  	.regs = &tegra20_pmc_regs,
> @@ -1689,6 +1706,7 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = {
>  	.cpu_powergates = tegra124_cpu_powergates,
>  	.has_tsense_reset = true,
>  	.has_gpu_clamps = true,
> +	.has_impl_33v_pwr = false,
>  	.num_io_pads = ARRAY_SIZE(tegra124_io_pads),
>  	.io_pads = tegra124_io_pads,
>  	.regs = &tegra20_pmc_regs,
> @@ -1778,6 +1796,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = {
>  	.cpu_powergates = tegra210_cpu_powergates,
>  	.has_tsense_reset = true,
>  	.has_gpu_clamps = true,
> +	.has_impl_33v_pwr = false,
>  	.needs_mbist_war = true,
>  	.num_io_pads = ARRAY_SIZE(tegra210_io_pads),
>  	.io_pads = tegra210_io_pads,
> @@ -1806,7 +1825,7 @@ static const struct tegra_io_pad_soc tegra186_io_pads[] = {
>  	{ .id = TEGRA_IO_PAD_HDMI_DP0, .dpd = 28, .voltage = UINT_MAX },
>  	{ .id = TEGRA_IO_PAD_HDMI_DP1, .dpd = 29, .voltage = UINT_MAX },
>  	{ .id = TEGRA_IO_PAD_PEX_CNTRL, .dpd = 32, .voltage = UINT_MAX },
> -	{ .id = TEGRA_IO_PAD_SDMMC2_HV, .dpd = 34, .voltage = UINT_MAX },
> +	{ .id = TEGRA_IO_PAD_SDMMC2_HV, .dpd = 34, .voltage = 5 },
>  	{ .id = TEGRA_IO_PAD_SDMMC4, .dpd = 36, .voltage = UINT_MAX },
>  	{ .id = TEGRA_IO_PAD_CAM, .dpd = 38, .voltage = UINT_MAX },
>  	{ .id = TEGRA_IO_PAD_DSIB, .dpd = 40, .voltage = UINT_MAX },
> @@ -1818,12 +1837,13 @@ static const struct tegra_io_pad_soc tegra186_io_pads[] = {
>  	{ .id = TEGRA_IO_PAD_CSIF, .dpd = 46, .voltage = UINT_MAX },
>  	{ .id = TEGRA_IO_PAD_SPI, .dpd = 47, .voltage = UINT_MAX },
>  	{ .id = TEGRA_IO_PAD_UFS, .dpd = 49, .voltage = UINT_MAX },
> -	{ .id = TEGRA_IO_PAD_DMIC_HV, .dpd = 52, .voltage = UINT_MAX },
> +	{ .id = TEGRA_IO_PAD_DMIC_HV, .dpd = 52, .voltage = 2 },
>  	{ .id = TEGRA_IO_PAD_EDP, .dpd = 53, .voltage = UINT_MAX },
> -	{ .id = TEGRA_IO_PAD_SDMMC1_HV, .dpd = 55, .voltage = UINT_MAX },
> -	{ .id = TEGRA_IO_PAD_SDMMC3_HV, .dpd = 56, .voltage = UINT_MAX },
> +	{ .id = TEGRA_IO_PAD_SDMMC1_HV, .dpd = 55, .voltage = 4 },
> +	{ .id = TEGRA_IO_PAD_SDMMC3_HV, .dpd = 56, .voltage = 6 },
>  	{ .id = TEGRA_IO_PAD_CONN, .dpd = 60, .voltage = UINT_MAX },
> -	{ .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = UINT_MAX },
> +	{ .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = 1 },
> +	{ .id = TEGRA_IO_PAD_AO_HV, .dpd = UINT_MAX, .voltage = 0 },
>  };
>  
>  static const struct tegra_pmc_regs tegra186_pmc_regs = {
> @@ -1876,6 +1896,7 @@ static const struct tegra_pmc_soc tegra186_pmc_soc = {
>  	.cpu_powergates = NULL,
>  	.has_tsense_reset = false,
>  	.has_gpu_clamps = false,
> +	.has_impl_33v_pwr = true,
>  	.num_io_pads = ARRAY_SIZE(tegra186_io_pads),
>  	.io_pads = tegra186_io_pads,
>  	.regs = &tegra186_pmc_regs,
> diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
> index c32bf91..445aa66 100644
> --- a/include/soc/tegra/pmc.h
> +++ b/include/soc/tegra/pmc.h
> @@ -134,6 +134,7 @@ enum tegra_io_pad {
>  	TEGRA_IO_PAD_USB2,
>  	TEGRA_IO_PAD_USB3,
>  	TEGRA_IO_PAD_USB_BIAS,
> +	TEGRA_IO_PAD_AO_HV,
>  };
>  
>  /* deprecated, use TEGRA_IO_PAD_{HDMI,LVDS} instead */

Acked-by: Jon Hunter <jonathanh@nvidia.com>

Cheers
Jon

-- 
nvpublic

^ permalink raw reply	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs
  2018-07-11 14:05 ` [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo
@ 2018-07-11 15:30   ` Jon Hunter
  2018-07-12  0:05   ` kbuild test robot
  1 sibling, 0 replies; 15+ messages in thread
From: Jon Hunter @ 2018-07-11 15:30 UTC (permalink / raw)
  To: Aapo Vienamo, Rob Herring, Mark Rutland, Thierry Reding,
	Mikko Perttunen, Laxman Dewangan
  Cc: devicetree, linux-tegra, linux-kernel

Adding Laxman ...

On 11/07/18 15:05, Aapo Vienamo wrote:
> Make tegra_io_pad_set_voltage() and tegra_io_pad_get_voltage() static
> and remove the prototypes from pmc.h. Remove enum tegra_io_pad_voltage
> and use the defines from <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
> instead.
> 
> These functions aren't used outside of the pmc driver and new use cases
> should use the pinctrl interface instead.
> 
> Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
> ---
>  drivers/soc/tegra/pmc.c | 17 ++++++++---------
>  include/soc/tegra/pmc.h | 13 -------------
>  2 files changed, 8 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
> index f68dbfa..8926831 100644
> --- a/drivers/soc/tegra/pmc.c
> +++ b/drivers/soc/tegra/pmc.c
> @@ -45,6 +45,8 @@
>  #include <soc/tegra/fuse.h>
>  #include <soc/tegra/pmc.h>
>  
> +#include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
> +
>  #define PMC_CNTRL			0x0
>  #define  PMC_CNTRL_INTR_POLARITY	BIT(17) /* inverts INTR polarity */
>  #define  PMC_CNTRL_CPU_PWRREQ_OE	BIT(16) /* CPU pwr req enable */
> @@ -1093,8 +1095,7 @@ int tegra_io_pad_is_powered(enum tegra_io_pad id)
>  }
>  EXPORT_SYMBOL(tegra_io_pad_is_powered);
>  
> -int tegra_io_pad_set_voltage(enum tegra_io_pad id,
> -			     enum tegra_io_pad_voltage voltage)
> +static int tegra_io_pad_set_voltage(enum tegra_io_pad id, int voltage)
>  {
>  	const struct tegra_io_pad_soc *pad;
>  	u32 value;
> @@ -1110,7 +1111,7 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
>  
>  	if (pmc->soc->has_impl_33v_pwr) {
>  		value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR);
> -		if (voltage == TEGRA_IO_PAD_1800000UV)
> +		if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
>  			value &= ~BIT(pad->voltage);
>  		else
>  			value |= BIT(pad->voltage);
> @@ -1124,7 +1125,7 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
>  		/* update I/O voltage */
>  		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
>  
> -		if (voltage == TEGRA_IO_PAD_1800000UV)
> +		if (voltage == TEGRA_IO_PAD_VOLTAGE_3V3)
>  			value &= ~BIT(pad->voltage);
>  		else
>  			value |= BIT(pad->voltage);
> @@ -1138,9 +1139,8 @@ int tegra_io_pad_set_voltage(enum tegra_io_pad id,
>  
>  	return 0;
>  }
> -EXPORT_SYMBOL(tegra_io_pad_set_voltage);
>  
> -int tegra_io_pad_get_voltage(enum tegra_io_pad id)
> +static int tegra_io_pad_get_voltage(enum tegra_io_pad id)
>  {
>  	const struct tegra_io_pad_soc *pad;
>  	u32 value;
> @@ -1158,11 +1158,10 @@ int tegra_io_pad_get_voltage(enum tegra_io_pad id)
>  		value = tegra_pmc_readl(PMC_PWR_DET_VALUE);
>  
>  	if ((value & BIT(pad->voltage)) == 0)
> -		return TEGRA_IO_PAD_1800000UV;
> +		return TEGRA_IO_PAD_VOLTAGE_1V8;
>  
> -	return TEGRA_IO_PAD_3300000UV;
> +	return TEGRA_IO_PAD_VOLTAGE_3V3;
>  }
> -EXPORT_SYMBOL(tegra_io_pad_get_voltage);
>  
>  /**
>   * tegra_io_rail_power_on() - enable power to I/O rail
> diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
> index 14206e8..b6294f6 100644
> --- a/include/soc/tegra/pmc.h
> +++ b/include/soc/tegra/pmc.h
> @@ -141,16 +141,6 @@ enum tegra_io_pad {
>  #define TEGRA_IO_RAIL_HDMI	TEGRA_IO_PAD_HDMI
>  #define TEGRA_IO_RAIL_LVDS	TEGRA_IO_PAD_LVDS
>  
> -/**
> - * enum tegra_io_pad_voltage - voltage level of the I/O pad's source rail
> - * @TEGRA_IO_PAD_1800000UV: 1.8 V
> - * @TEGRA_IO_PAD_3300000UV: 3.3 V
> - */
> -enum tegra_io_pad_voltage {
> -	TEGRA_IO_PAD_1800000UV,
> -	TEGRA_IO_PAD_3300000UV,
> -};
> -
>  #ifdef CONFIG_SOC_TEGRA_PMC
>  int tegra_powergate_is_powered(unsigned int id);
>  int tegra_powergate_power_on(unsigned int id);
> @@ -164,9 +154,6 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
>  int tegra_io_pad_power_enable(enum tegra_io_pad id);
>  int tegra_io_pad_power_disable(enum tegra_io_pad id);
>  int tegra_io_pad_is_powered(enum tegra_io_pad id);
> -int tegra_io_pad_set_voltage(enum tegra_io_pad id,
> -			     enum tegra_io_pad_voltage voltage);
> -int tegra_io_pad_get_voltage(enum tegra_io_pad id);
>  
>  /* deprecated, use tegra_io_pad_power_{enable,disable}() instead */
>  int tegra_io_rail_power_on(unsigned int id);
> 

Acked-by: Jon Hunter <jonathanh@nvidia.com>

Cheers
Jon

-- 
nvpublic

^ permalink raw reply	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs
  2018-07-11 14:05 ` [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo
  2018-07-11 15:30   ` Jon Hunter
@ 2018-07-12  0:05   ` kbuild test robot
  1 sibling, 0 replies; 15+ messages in thread
From: kbuild test robot @ 2018-07-12  0:05 UTC (permalink / raw)
  To: Aapo Vienamo
  Cc: kbuild-all, Rob Herring, Mark Rutland, Thierry Reding,
	Jonathan Hunter, Mikko Perttunen, Aapo Vienamo, devicetree,
	linux-tegra, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 2337 bytes --]

Hi Aapo,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tegra/for-next]
[also build test WARNING on v4.18-rc4 next-20180711]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Aapo-Vienamo/soc-tegra-pmc-Fix-pad-voltage-configuration-for-Tegra186/20180712-053245
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next
config: i386-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from drivers/pci/controller/pci-tegra.c:41:0:
>> include/soc/tegra/pmc.h:205:14: warning: 'enum tegra_io_pad_voltage' declared inside parameter list will not be visible outside of this definition or declaration
            enum tegra_io_pad_voltage voltage)
                 ^~~~~~~~~~~~~~~~~~~~
   include/soc/tegra/pmc.h:205:35: error: parameter 2 ('voltage') has incomplete type
            enum tegra_io_pad_voltage voltage)
                                      ^~~~~~~
   include/soc/tegra/pmc.h:204:19: error: function declaration isn't a prototype [-Werror=strict-prototypes]
    static inline int tegra_io_pad_set_voltage(enum tegra_io_pad id,
                      ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +205 include/soc/tegra/pmc.h

21b49910 Laxman Dewangan 2016-10-10  203  
21b49910 Laxman Dewangan 2016-10-10  204  static inline int tegra_io_pad_set_voltage(enum tegra_io_pad id,
21b49910 Laxman Dewangan 2016-10-10 @205  					   enum tegra_io_pad_voltage voltage)
21b49910 Laxman Dewangan 2016-10-10  206  {
21b49910 Laxman Dewangan 2016-10-10  207  	return -ENOSYS;
21b49910 Laxman Dewangan 2016-10-10  208  }
21b49910 Laxman Dewangan 2016-10-10  209  

:::::: The code at line 205 was first introduced by commit
:::::: 21b4991051780b49b217c363f79366ed94c3b4b7 soc/tegra: pmc: Add I/O pad voltage support

:::::: TO: Laxman Dewangan <ldewangan@nvidia.com>
:::::: CC: Thierry Reding <treding@nvidia.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 64112 bytes --]

^ permalink raw reply	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  2018-07-11 15:26     ` Jon Hunter
@ 2018-07-12  7:52       ` Aapo Vienamo
  2018-07-12 10:10         ` Jon Hunter
  0 siblings, 1 reply; 15+ messages in thread
From: Aapo Vienamo @ 2018-07-12  7:52 UTC (permalink / raw)
  To: Jon Hunter
  Cc: Rob Herring, Mark Rutland, Thierry Reding, Mikko Perttunen,
	devicetree, linux-tegra, linux-kernel

On Wed, 11 Jul 2018 16:26:42 +0100
Jon Hunter <jonathanh@nvidia.com> wrote:

> On 11/07/18 16:23, Jon Hunter wrote:
> > 
> > On 11/07/18 15:01, Aapo Vienamo wrote:  
> >> Implement a function to query whether a pad is in deep power down mode.  
> > Can you elaborate on why this public function is needed and who will be
> > using this?  
> 
> Or I should say does this need to be public?

It's only called from the pinconf callbacks and exposing it doesn't
indeed make much sense if we intend to replace direct calls to pmc.c
with pinctrl anyway. I'll make it private on the next iteration of the
series.

 -Aapo

^ permalink raw reply	[flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  2018-07-12  7:52       ` Aapo Vienamo
@ 2018-07-12 10:10         ` Jon Hunter
  0 siblings, 0 replies; 15+ messages in thread
From: Jon Hunter @ 2018-07-12 10:10 UTC (permalink / raw)
  To: Aapo Vienamo
  Cc: Rob Herring, Mark Rutland, Thierry Reding, Mikko Perttunen,
	devicetree, linux-tegra, linux-kernel


On 12/07/18 08:52, Aapo Vienamo wrote:
> On Wed, 11 Jul 2018 16:26:42 +0100
> Jon Hunter <jonathanh@nvidia.com> wrote:
> 
>> On 11/07/18 16:23, Jon Hunter wrote:
>>>
>>> On 11/07/18 15:01, Aapo Vienamo wrote:  
>>>> Implement a function to query whether a pad is in deep power down mode.  
>>> Can you elaborate on why this public function is needed and who will be
>>> using this?  
>>
>> Or I should say does this need to be public?
> 
> It's only called from the pinconf callbacks and exposing it doesn't
> indeed make much sense if we intend to replace direct calls to pmc.c
> with pinctrl anyway. I'll make it private on the next iteration of the
> series.

Yes let's make it private.

Cheers
Jon

-- 
nvpublic

^ permalink raw reply	[flat|nested] 15+ messages in thread
end of thread, other threads:[~2018-07-12 10:10 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-07-11 14:01 [PATCH v2 0/7] Tegra PMC pinctrl pad configuration Aapo Vienamo
2018-07-11 14:01 ` [PATCH v2 1/7] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo
2018-07-11 15:27   ` Jon Hunter
2018-07-11 14:01 ` [PATCH v2 2/7] soc/tegra: pmc: Factor out DPD register bit calculation Aapo Vienamo
2018-07-11 14:01 ` [PATCH v2 3/7] soc/tegra: pmc: Implement tegra_io_pad_is_powered() Aapo Vienamo
2018-07-11 15:23   ` Jon Hunter
2018-07-11 15:26     ` Jon Hunter
2018-07-12  7:52       ` Aapo Vienamo
2018-07-12 10:10         ` Jon Hunter
2018-07-11 14:01 ` [PATCH v2 4/7] soc/tegra: pmc: Use X macro to generate IO pad tables Aapo Vienamo
2018-07-11 14:05 ` [PATCH v2 5/7] dt-bindings: Add Tegra PMC pad configuration bindings Aapo Vienamo
2018-07-11 14:05 ` [PATCH v2 6/7] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo
2018-07-11 15:30   ` Jon Hunter
2018-07-12  0:05   ` kbuild test robot
2018-07-11 14:06 ` [PATCH v2 7/7] soc/tegra: pmc: Implement pad configuration via pinctrl Aapo Vienamo

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