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authorRobin Murphy <robin.murphy@arm.com>2020-01-12 01:55:04 +0000
committerLee Jones <lee.jones@linaro.org>2020-03-30 07:35:28 +0100
commit42679765faf286259b16acf284eb52d68877ff32 (patch)
tree46e7188a0bdce57c80e09c6db330efbe27863a31 /drivers/mfd
parent7a52cbccee8df0edfee30b81fdbb7d4f9d27ffd5 (diff)
downloadlinux-42679765faf286259b16acf284eb52d68877ff32.tar.bz2
mfd: rk808: Convert RK805 to shutdown/suspend hooks
RK805 has the same kind of dual-role sleep/shutdown pin as RK809/RK817, so it makes little sense for the driver to have to have two completely different mechanisms to handle essentially the same thing. Move RK805 over to the shutdown/suspend flow to clean things up. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/rk808.c37
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index b2265c6e94ae..d109b9f14407 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -185,7 +185,6 @@ static const struct rk808_reg_data rk805_pre_init_reg[] = {
{RK805_BUCK4_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
RK805_BUCK4_ILMAX_3500MA},
{RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
- {RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
{RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
};
@@ -448,21 +447,6 @@ static const struct regmap_irq_chip rk818_irq_chip = {
static struct i2c_client *rk808_i2c_client;
-static void rk805_device_shutdown_prepare(void)
-{
- int ret;
- struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
-
- if (!rk808)
- return;
-
- ret = regmap_update_bits(rk808->regmap,
- RK805_GPIO_IO_POL_REG,
- SLP_SD_MSK, SHUTDOWN_FUN);
- if (ret)
- dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
-}
-
static void rk808_pm_power_off(void)
{
int ret;
@@ -496,6 +480,12 @@ static void rk8xx_shutdown(struct i2c_client *client)
int ret;
switch (rk808->variant) {
+ case RK805_ID:
+ ret = regmap_update_bits(rk808->regmap,
+ RK805_GPIO_IO_POL_REG,
+ SLP_SD_MSK,
+ SHUTDOWN_FUN);
+ break;
case RK809_ID:
case RK817_ID:
ret = regmap_update_bits(rk808->regmap,
@@ -574,7 +564,6 @@ static int rk808_probe(struct i2c_client *client,
nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
cells = rk805s;
nr_cells = ARRAY_SIZE(rk805s);
- rk808->pm_pwroff_prep_fn = rk805_device_shutdown_prepare;
break;
case RK808_ID:
rk808->regmap_cfg = &rk808_regmap_config;
@@ -653,7 +642,6 @@ static int rk808_probe(struct i2c_client *client,
if (of_property_read_bool(np, "rockchip,system-power-controller")) {
rk808_i2c_client = client;
pm_power_off = rk808_pm_power_off;
- pm_power_off_prepare = rk808->pm_pwroff_prep_fn;
}
return 0;
@@ -676,13 +664,6 @@ static int rk808_remove(struct i2c_client *client)
if (pm_power_off == rk808_pm_power_off)
pm_power_off = NULL;
- /**
- * As above, check if the pointer is set by us before overwrite.
- */
- if (rk808->pm_pwroff_prep_fn &&
- pm_power_off_prepare == rk808->pm_pwroff_prep_fn)
- pm_power_off_prepare = NULL;
-
return 0;
}
@@ -692,6 +673,12 @@ static int __maybe_unused rk8xx_suspend(struct device *dev)
int ret = 0;
switch (rk808->variant) {
+ case RK805_ID:
+ ret = regmap_update_bits(rk808->regmap,
+ RK805_GPIO_IO_POL_REG,
+ SLP_SD_MSK,
+ SLEEP_FUN);
+ break;
case RK809_ID:
case RK817_ID:
ret = regmap_update_bits(rk808->regmap,