regulator: tps65910: wire up sleep control configuration

This enables configuring the PMIC's sleep mode via device-tree.

A pointer indirection to sleep mode data is removed, as it simplifies
the implementation slightly. In current kernel tree, platform data
structure is not used outside MFD cell drivers.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Mark Brown <broonie@kernel.org>

3 files changed, 20 insertions, 8 deletions

diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt
index 38833e63a59f..8af1202b381d 100644
--- a/Documentation/devicetree/bindings/mfd/tps65910.txt
+++ b/Documentation/devicetree/bindings/mfd/tps65910.txt
@@ -61,6 +61,10 @@ Optional properties:
   There should be 9 entries here, one for each gpio.
 - ti,system-power-controller: Telling whether or not this pmic is controlling
   the system power.
+- ti,sleep-enable: Enable SLEEP state.
+- ti,sleep-keep-therm: Keep thermal monitoring on in sleep state.
+- ti,sleep-keep-ck32k: Keep the 32KHz clock output on in sleep state.
+- ti,sleep-keep-hsclk: Keep high speed internal clock on in sleep state.
 
 Regulator Optional properties:
 - ti,regulator-ext-sleep-control: enable external sleep
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index 11cab1582f2f..8263605f6d2f 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -328,11 +328,7 @@ static int tps65910_sleepinit(struct tps65910 *tps65910,
                 goto err_sleep_init;
         }
 
-        /* Return if there is no sleep keepon data. */
-        if (!pmic_pdata->slp_keepon)
-                return 0;
-
-        if (pmic_pdata->slp_keepon->therm_keepon) {
+        if (pmic_pdata->slp_keepon.therm_keepon) {
                 ret = tps65910_reg_set_bits(tps65910,
                                 TPS65910_SLEEP_KEEP_RES_ON,
                                 SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
@@ -342,7 +338,7 @@ static int tps65910_sleepinit(struct tps65910 *tps65910,
                 }
         }
 
-        if (pmic_pdata->slp_keepon->clkout32k_keepon) {
+        if (pmic_pdata->slp_keepon.clkout32k_keepon) {
                 ret = tps65910_reg_set_bits(tps65910,
                                 TPS65910_SLEEP_KEEP_RES_ON,
                                 SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
@@ -352,7 +348,7 @@ static int tps65910_sleepinit(struct tps65910 *tps65910,
                 }
         }
 
-        if (pmic_pdata->slp_keepon->i2chs_keepon) {
+        if (pmic_pdata->slp_keepon.i2chs_keepon) {
                 ret = tps65910_reg_set_bits(tps65910,
                                 TPS65910_SLEEP_KEEP_RES_ON,
                                 SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
@@ -415,6 +411,18 @@ static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
         prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
         board_info->en_ck32k_xtal = prop;
 
+        prop = of_property_read_bool(np, "ti,sleep-enable");
+        board_info->en_dev_slp = prop;
+
+        prop = of_property_read_bool(np, "ti,sleep-keep-therm");
+        board_info->slp_keepon.therm_keepon = prop;
+
+        prop = of_property_read_bool(np, "ti,sleep-keep-ck32k");
+        board_info->slp_keepon.clkout32k_keepon = prop;
+
+        prop = of_property_read_bool(np, "ti,sleep-keep-hsclk");
+        board_info->slp_keepon.i2chs_keepon = prop;
+
         board_info->irq = client->irq;
         board_info->irq_base = -1;
         board_info->pm_off = of_property_read_bool(np,
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index ffb21e79204d..deffdcd0236f 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -879,7 +879,7 @@ struct tps65910_board {
         bool en_ck32k_xtal;
         bool en_dev_slp;
         bool pm_off;
-        struct tps65910_sleep_keepon_data *slp_keepon;
+        struct tps65910_sleep_keepon_data slp_keepon;
         bool en_gpio_sleep[TPS6591X_MAX_NUM_GPIO];
         unsigned long regulator_ext_sleep_control[TPS65910_NUM_REGS];
         struct regulator_init_data *tps65910_pmic_init_data[TPS65910_NUM_REGS];