Change in this patch include
comments fix from David Brownell and Mark
TPS6235x chip based PR785 power modules are from Texas Instruments
for OMAP3 EVM boards. This patch supports the PR785 card
and provides the driver support for the TPS devices.
For compilation, the LCD and MMC drivers are modified and will not
work. Further patches will be provided for support of LCD and MMC
with PR785 boards.
Signed-off-by: Manikandan Pillai <mani.pillai@xxxxxx>
---
arch/arm/mach-omap2/Kconfig | 11 +++
arch/arm/mach-omap2/board-omap3evm.c | 139 ++++++++++++++++++++++++++++++++
arch/arm/mach-omap2/mmc-twl4030.c | 4 +-
arch/arm/plat-omap/i2c.c | 4 +-
drivers/regulator/tps6235x-regulator.c | 8 +-
drivers/video/omap/lcd_omap3evm.c | 6 ++
6 files changed, 166 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 0a86a88..91890be 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -121,6 +121,17 @@ config MACH_OMAP3EVM
bool "OMAP 3530 EVM board"
depends on ARCH_OMAP3 && ARCH_OMAP34XX
+menu "PR785 Power board selection for OMAP3 EVM"
+config OMAP3EVM_PR785
+ bool "Power board for OMAP3 EVM"
+ depends on I2C=y && ARCH_OMAP34XX
+ help
+ Say yes here if you are using the TPS6235x based PR785 Power Module
+ for the EVM boards. This core driver provides register access and IRQ
+ handling facilities, and registers devices for the various functions
+ so that function-specific drivers can bind to them.
+endmenu
+
config MACH_OMAP3_BEAGLE
bool "OMAP3 BEAGLE board"
depends on ARCH_OMAP3 && ARCH_OMAP34XX
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index e4e60e2..4eac042 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -36,11 +36,20 @@
#include <mach/usb-ehci.h>
#include <mach/common.h>
#include <mach/mcspi.h>
+#include <mach/mux.h>
#include "sdram-micron-mt46h32m32lf-6.h"
#include "twl4030-generic-scripts.h"
#include "mmc-twl4030.h"
+#include <linux/regulator/machine.h>
+#if defined(CONFIG_OMAP3EVM_PR785) && defined(CONFIG_TWL4030_CORE)
+#error config err : only one of OMAP3EVM_PR785 or TWL4030_CORE can be defined
+#endif
+
+struct platform_device *vdd2_platform_device;
+struct platform_device *vdd1_platform_device;
+extern struct platform_device omap_i2c_devices[];
static struct resource omap3evm_smc911x_resources[] = {
[0] = {
@@ -89,6 +98,7 @@ static struct omap_uart_config omap3_evm_uart_config __initdata = {
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};
+#if defined(CONFIG_TWL4030_CORE)
static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
.gpio_base = OMAP_MAX_GPIO_LINES,
.irq_base = TWL4030_GPIO_IRQ_BASE,
@@ -150,11 +160,66 @@ static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
.platform_data = &omap3evm_twldata,
},
};
+#endif
+
+#if defined(CONFIG_OMAP3EVM_PR785)
+/* CORE voltage regulator */
+struct regulator_consumer_supply tps62352_core_consumers = {
+ .supply = "vdd2",
+};
+
+/* MPU voltage regulator */
+struct regulator_consumer_supply tps62352_mpu_consumers = {
+ .supply = "vdd1",
+};
+
+struct regulator_init_data vdd2_tps_regulator_data = {
+ .constraints = {
+ .min_uV = 750000,
+ .max_uV = 1537000,
+ .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_STATUS),
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &tps62352_core_consumers,
+};
+
+struct regulator_init_data vdd1_tps_regulator_data = {
+ .constraints = {
+ .min_uV = 750000,
+ .max_uV = 1537000,
+ .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_STATUS),
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &tps62352_mpu_consumers,
+};
+
+static struct i2c_board_info __initdata tps_6235x_i2c_board_info[] = {
+ {
+ I2C_BOARD_INFO("tps62352", 0x4A),
+ .flags = I2C_CLIENT_WAKE,
+ .platform_data = &vdd2_tps_regulator_data,
+ },
+ {
+ I2C_BOARD_INFO("tps62353", 0x48),
+ .flags = I2C_CLIENT_WAKE,
+ .platform_data = &vdd1_tps_regulator_data,
+ },
+};
+#endif
static int __init omap3_evm_i2c_init(void)
{
+#if defined(CONFIG_OMAP3EVM_PR785)
+ omap_register_i2c_bus(1, 2600, tps_6235x_i2c_board_info,
+ ARRAY_SIZE(tps_6235x_i2c_board_info));
+
+#endif
+#if defined(CONFIG_TWL4030_CORE)
omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
ARRAY_SIZE(omap3evm_i2c_boardinfo));
+#endif
omap_register_i2c_bus(2, 400, NULL, 0);
omap_register_i2c_bus(3, 400, NULL, 0);
return 0;
@@ -233,6 +298,7 @@ static struct platform_device *omap3_evm_devices[] __initdata = {
&omap3evm_smc911x_device,
};
+#if defined(CONFIG_TWL4030_CORE)
static struct twl4030_hsmmc_info mmc[] __initdata = {
{
.mmc = 1,
@@ -242,6 +308,74 @@ static struct twl4030_hsmmc_info mmc[] __initdata = {
},
{} /* Terminator */
};
+#endif
+
+#if defined(CONFIG_OMAP3EVM_PR785)
+/* This is the callback function used to find the correct
+ * i2c platform child for the regulator consumer
+*/
+int omap_i2c_match_child(struct device *dev, void *data)
+{
+ struct regulator_init_data *reg_init_data = dev->platform_data;
+ char *name = data;
+
+ /* Child does not match */
+ if (strcmp(name, reg_init_data->consumer_supplies->supply))
+ return 0;
+ else
+ return 1;
+}
+
+int omap_i2c_register_child(struct platform_device *pdev_parent,
+ const char *name, struct platform_device **pdev)
+{
+ int ret = 0;
+
+ *pdev = platform_device_alloc(name, -1);
+ if (pdev == NULL) {
+ dev_err(&(*pdev)->dev, "Failed to alloc i2c-child %s\n", name);
+ return -1;
+ }
+
+ (*pdev)->dev.parent = &pdev_parent->dev;
+ if (!strcmp(name, "vdd2_consumer"))
+ (*pdev)->dev.platform_data = &vdd2_tps_regulator_data;
+ else if (!strcmp(name, "vdd1_consumer"))
+ (*pdev)->dev.platform_data = &vdd1_tps_regulator_data;
+
+
+ ret = platform_device_add(*pdev);
+ if (ret != 0) {
+ dev_err(&(*pdev)->dev, "Failed to register %s: %d\n",
+ name, ret);
+ platform_device_put(*pdev);
+ *pdev = NULL;
+ }
+ return ret;
+}
+
+static void omap_init_pr785(void)
+{
+ struct platform_device *pdev;
+ /* Initialize the mux settings for PR785 power module board */
+ if (cpu_is_omap343x()) {
+ omap_cfg_reg(AF26_34XX_GPIO0);
+ omap_cfg_reg(AF22_34XX_GPIO9);
+ omap_cfg_reg(AF6_34XX_GPIO140_UP);
+ omap_cfg_reg(AE6_34XX_GPIO141);
+ omap_cfg_reg(AF5_34XX_GPIO142);
+ omap_cfg_reg(AE5_34XX_GPIO143);
+ }
+ /* Initialize the regulator consumer platform devices here */
+ pdev = &omap_i2c_devices[0];
+ omap_i2c_register_child(pdev, "vdd2_consumer", \
+ &vdd2_platform_device);
+ omap_i2c_register_child(pdev, "vdd1_consumer", \
+ &vdd1_platform_device);
+ tps62352_core_consumers.dev = &vdd2_platform_device->dev;
+ tps62352_mpu_consumers.dev = &vdd1_platform_device->dev;
+}
+#endif
static void __init omap3_evm_init(void)
{
@@ -255,7 +389,12 @@ static void __init omap3_evm_init(void)
ARRAY_SIZE(omap3evm_spi_board_info));
omap_serial_init();
+#if defined(CONFIG_TWL4030_CORE)
twl4030_mmc_init(mmc);
+#endif
+#if defined(CONFIG_OMAP3EVM_PR785)
+ omap_init_pr785();
+#endif
usb_musb_init();
usb_ehci_init();
omap3evm_flash_init();
diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c
index 437f520..d907889 100644
--- a/arch/arm/mach-omap2/mmc-twl4030.c
+++ b/arch/arm/mach-omap2/mmc-twl4030.c
@@ -168,7 +168,7 @@ static int twl_mmc_resume(struct device *dev, int slot)
*/
static int twl_mmc_set_voltage(struct twl_mmc_controller *c, int vdd)
{
- int ret;
+ int ret = 0;
u8 vmmc, dev_grp_val;
switch (1 << vdd) {
@@ -223,6 +223,7 @@ static int twl_mmc_set_voltage(struct twl_mmc_controller *c, int vdd)
else
dev_grp_val = LDO_CLR; /* Power down */
+#if defined(CONFIG_TWL4030_CORE)
ret = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
dev_grp_val, c->twl_vmmc_dev_grp);
if (ret)
@@ -231,6 +232,7 @@ static int twl_mmc_set_voltage(struct twl_mmc_controller *c, int vdd)
ret = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
vmmc, c->twl_mmc_dedicated);
+#endif
return ret;
}
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index 89a6ab0..732d9a8 100644
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -27,6 +27,8 @@
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <mach/mux.h>
+#include <linux/string.h>
+#include <linux/regulator/machine.h>
#define OMAP_I2C_SIZE 0x3f
#define OMAP1_I2C_BASE 0xfffb3800
@@ -69,7 +71,7 @@ static struct resource i2c_resources[][2] = {
}
static u32 i2c_rate[ARRAY_SIZE(i2c_resources)];
-static struct platform_device omap_i2c_devices[] = {
+struct platform_device omap_i2c_devices[] = {
I2C_DEV_BUILDER(1, i2c_resources[0], &i2c_rate[0]),
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
I2C_DEV_BUILDER(2, i2c_resources[1], &i2c_rate[1]),
diff --git a/drivers/regulator/tps6235x-regulator.c b/drivers/regulator/tps6235x-regulator.c
index f10fae6..36e6fcf 100644
--- a/drivers/regulator/tps6235x-regulator.c
+++ b/drivers/regulator/tps6235x-regulator.c
@@ -82,12 +82,12 @@ static inline int tps_6235x_write_reg(struct tps *tps, u8 reg, u8 val)
static int tps6235x_dcdc_is_enabled(struct regulator_dev *dev)
{
+ unsigned char vsel1;
struct tps *tps = rdev_get_drvdata(dev);
- ret = tps_6235x_read_reg(tps, TPS6235X_REG_VSEL1, &vsel1);
- /* REVISIT we need to be able to report errors here ... */
+ tps_6235x_read_reg(tps, TPS6235X_REG_VSEL1, &vsel1);
- return !!(vsel1 & TPS6235X_EN_DCDC);
+ return !(vsel1 & TPS6235X_EN_DCDC);
}
static int tps6235x_dcdc_enable(struct regulator_dev *dev)
@@ -121,7 +121,7 @@ static int tps6235x_dcdc_disable(struct regulator_dev *dev)
static int tps6235x_dcdc_get_voltage(struct regulator_dev *dev)
{
- struct i2c_client *tps_info = rdev_get_drvdata(dev);
+ struct tps *tps = rdev_get_drvdata(dev);
unsigned char vsel1;
const struct tps_info *info = tps->info;
int status;
diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c
index 1c3d814..4f373b2 100644
--- a/drivers/video/omap/lcd_omap3evm.c
+++ b/drivers/video/omap/lcd_omap3evm.c
@@ -66,9 +66,11 @@ static int omap3evm_panel_init(struct lcd_panel *panel,
gpio_direction_output(LCD_PANEL_LR, 1);
gpio_direction_output(LCD_PANEL_UD, 1);
+#if defined(CONFIG_TWL4030_CORE)
twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN);
twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON);
twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF);
+#endif
bklight_level = 100;
return 0;
@@ -97,6 +99,7 @@ static unsigned long omap3evm_panel_get_caps(struct lcd_panel *panel)
static int omap3evm_bklight_setlevel(struct lcd_panel *panel,
unsigned int level)
{
+#if defined(CONFIG_TWL4030_CORE)
u8 c;
if ((level >= 0) && (level <= 100)) {
c = (125 * (100 - level)) / 100 + 2;
@@ -104,6 +107,9 @@ static int omap3evm_bklight_setlevel(struct lcd_panel *panel,
bklight_level = level;
}
return 0;
+#endif
+ /* Fix this once patch fix is sent out for TPS-boards */
+ return -1;
}
static unsigned int omap3evm_bklight_getlevel(struct lcd_panel *panel)
--
1.5.6
--
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