[PATCH v3] ARM: omap2: twl-common: Add default power configuration

[Peter Ujfalusi]

From: Matthias Brugger <matthias.bgg at gmail.com>

This patch adds a generic power script configuration.
When rebooting an OMAP3530 at 125 MHz, the reboot hangs.
With the generic power script, TWL4030 will be reset
when a warm reset occures. This way the OMAP3530 does not
hang on reboot.

Signed-off-by: Matthias Brugger <matthias.bgg at gmail.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
---
Tony, Matthias,

Changes since v2:
- remove the __initdata from all the structures introduced by this patch

Regards,
Peter

 arch/arm/mach-omap2/twl-common.c | 38 ++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/twl-common.h |  1 +
 2 files changed, 39 insertions(+)

diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 51e138c..7551bbc 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -121,6 +121,41 @@ static struct twl4030_audio_data omap3_audio_pdata = {
 	.codec = &omap3_codec,
 };
 
+static struct twl4030_ins wrst_seq[] __initdata = {
+	{MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_OFF), 2},
+	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_WRST), 15},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_WRST), 15},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_WRST), 0x60},
+	{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 2},
+	{MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_ACTIVE), 2},
+};
+
+static struct twl4030_script wrst_script __initdata = {
+	.script = wrst_seq,
+	.size	= ARRAY_SIZE(wrst_seq),
+	.flags	= TWL4030_WRST_SCRIPT,
+};
+
+static struct twl4030_script *omap3_power_scripts[] __initdata = {
+	&wrst_script,
+};
+
+static struct twl4030_resconfig omap3_rconfig[] __initdata = {
+	{ .resource = RES_HFCLKOUT, .devgroup = DEV_GRP_P3, .type = -1,
+		.type2 = -1 },
+	{ .resource = RES_VDD1, .devgroup = DEV_GRP_P1, .type = -1,
+		.type2 = -1 },
+	{ .resource = RES_VDD2, .devgroup = DEV_GRP_P1, .type = -1,
+		.type2 = -1 },
+	{ 0, 0},
+};
+
+static struct twl4030_power_data omap3_power_pdata __initdata = {
+	.scripts	= omap3_power_scripts,
+	.num		= ARRAY_SIZE(omap3_power_scripts),
+	.resource_config = omap3_rconfig,
+};
+
 static struct regulator_consumer_supply omap3_vdda_dac_supplies[] = {
 	REGULATOR_SUPPLY("vdda_dac", "omapdss_venc"),
 };
@@ -225,6 +260,9 @@ void __init omap3_pmic_get_config(struct twl4030_platform_data *pmic_data,
 	if (pdata_flags & TWL_COMMON_PDATA_AUDIO && !pmic_data->audio)
 		pmic_data->audio = &omap3_audio_pdata;
 
+	if (pdata_flags & TWL_COMMON_PDATA_POWER && !pmic_data->power)
+		pmic_data->power = &omap3_power_pdata;
+
 	/* Common regulator configurations */
 	if (regulators_flags & TWL_COMMON_REGULATOR_VDAC && !pmic_data->vdac)
 		pmic_data->vdac = &omap3_vdac_idata;
diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h
index 24b65d0..b64590b8 100644
--- a/arch/arm/mach-omap2/twl-common.h
+++ b/arch/arm/mach-omap2/twl-common.h
@@ -7,6 +7,7 @@
 #define TWL_COMMON_PDATA_BCI		(1 << 1)
 #define TWL_COMMON_PDATA_MADC		(1 << 2)
 #define TWL_COMMON_PDATA_AUDIO		(1 << 3)
+#define TWL_COMMON_PDATA_POWER		(1 << 4)
 
 /* Common LDO regulators for TWL4030/TWL6030 */
 #define TWL_COMMON_REGULATOR_VDAC	(1 << 0)
-- 
1.8.1.5