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Subject[PATCH v2 10/28] ARM: tegra: pinmux: Add missing drive pingroups and fix suspend
Date
From: Gary King <gking@nvidia.com>

Adds missing drive pingroups, saves all drive pingroups in
suspend, and restores the pinmux registers in the proper order.

Signed-off-by: Gary King <gking@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
---
arch/arm/mach-tegra/include/mach/pinmux-t2.h | 10 ++++++++++
arch/arm/mach-tegra/pinmux-t2-tables.c | 25 +++++++++++++++++++++----
2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-tegra/include/mach/pinmux-t2.h b/arch/arm/mach-tegra/include/mach/pinmux-t2.h
index e5b9d74..4c26263 100644
--- a/arch/arm/mach-tegra/include/mach/pinmux-t2.h
+++ b/arch/arm/mach-tegra/include/mach/pinmux-t2.h
@@ -167,6 +167,16 @@ enum tegra_drive_pingroup {
TEGRA_DRIVE_PINGROUP_XM2D,
TEGRA_DRIVE_PINGROUP_XM2CLK,
TEGRA_DRIVE_PINGROUP_MEMCOMP,
+ TEGRA_DRIVE_PINGROUP_SDIO1,
+ TEGRA_DRIVE_PINGROUP_CRT,
+ TEGRA_DRIVE_PINGROUP_DDC,
+ TEGRA_DRIVE_PINGROUP_GMA,
+ TEGRA_DRIVE_PINGROUP_GMB,
+ TEGRA_DRIVE_PINGROUP_GMC,
+ TEGRA_DRIVE_PINGROUP_GMD,
+ TEGRA_DRIVE_PINGROUP_GME,
+ TEGRA_DRIVE_PINGROUP_OWR,
+ TEGRA_DRIVE_PINGROUP_UAD,
TEGRA_MAX_DRIVE_PINGROUP,
};

diff --git a/arch/arm/mach-tegra/pinmux-t2-tables.c b/arch/arm/mach-tegra/pinmux-t2-tables.c
index 4d97d5c..a475367 100644
--- a/arch/arm/mach-tegra/pinmux-t2-tables.c
+++ b/arch/arm/mach-tegra/pinmux-t2-tables.c
@@ -66,6 +66,16 @@ const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE
DRIVE_PINGROUP(XM2D, 0x8cc),
DRIVE_PINGROUP(XM2CLK, 0x8d0),
DRIVE_PINGROUP(MEMCOMP, 0x8d4),
+ DRIVE_PINGROUP(SDIO1, 0x8e0),
+ DRIVE_PINGROUP(CRT, 0x8ec),
+ DRIVE_PINGROUP(DDC, 0x8f0),
+ DRIVE_PINGROUP(GMA, 0x8f4),
+ DRIVE_PINGROUP(GMB, 0x8f8),
+ DRIVE_PINGROUP(GMC, 0x8fc),
+ DRIVE_PINGROUP(GMD, 0x900),
+ DRIVE_PINGROUP(GME, 0x904),
+ DRIVE_PINGROUP(OWR, 0x908),
+ DRIVE_PINGROUP(UAD, 0x90c),
};

#define PINGROUP(pg_name, vdd, f0, f1, f2, f3, f_safe, \
@@ -217,7 +227,8 @@ const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
#define PULLUPDOWN_REG_NUM 5

static u32 pinmux_reg[TRISTATE_REG_NUM + PIN_MUX_CTL_REG_NUM +
- PULLUPDOWN_REG_NUM];
+ PULLUPDOWN_REG_NUM +
+ ARRAY_SIZE(tegra_soc_drive_pingroups)];

static inline unsigned long pg_readl(unsigned long offset)
{
@@ -234,14 +245,17 @@ void tegra_pinmux_suspend(void)
unsigned int i;
u32 *ctx = pinmux_reg;

- for (i = 0; i < TRISTATE_REG_NUM; i++)
- *ctx++ = pg_readl(TRISTATE_REG_A + i*4);
-
for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
*ctx++ = pg_readl(PIN_MUX_CTL_REG_A + i*4);

for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
*ctx++ = pg_readl(PULLUPDOWN_REG_A + i*4);
+
+ for (i = 0; i < TRISTATE_REG_NUM; i++)
+ *ctx++ = pg_readl(TRISTATE_REG_A + i*4);
+
+ for (i = 0; i < ARRAY_SIZE(tegra_soc_drive_pingroups); i++)
+ *ctx++ = pg_readl(tegra_soc_drive_pingroups[i].reg);
}

void tegra_pinmux_resume(void)
@@ -257,5 +271,8 @@ void tegra_pinmux_resume(void)

for (i = 0; i < TRISTATE_REG_NUM; i++)
pg_writel(*ctx++, TRISTATE_REG_A + i*4);
+
+ for (i = 0; i < ARRAY_SIZE(tegra_soc_drive_pingroups); i++)
+ pg_writel(*ctx++, tegra_soc_drive_pingroups[i].reg);
}
#endif
--
1.7.3.1


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