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authorSoeren Moch <smoch@web.de>2020-01-12 04:55:00 +0300
committerLee Jones <lee.jones@linaro.org>2020-03-30 09:35:27 +0300
commitd8f083a302f7f69eecd513ce1aa828cfff41f0cf (patch)
tree7cc8d37a9340f3ba63db6a5c5674ff6800d88a28 /drivers/mfd
parent9a153b0ed196cc6052ea6a32f517cbf5015c8d29 (diff)
downloadlinux-d8f083a302f7f69eecd513ce1aa828cfff41f0cf.tar.xz
mfd: rk808: Always use poweroff when requested
With the device tree property "rockchip,system-power-controller" we explicitly request to use this PMIC to power off the system. So always register our poweroff function, even if some other handler (probably PSCI poweroff) was registered before. This does tend to reveal a warning on shutdown due to the Rockchip I2C driver not implementing an atomic transfer method, however since the write to DEV_OFF takes effect immediately the I2C completion interrupt is moot anyway, and as the very last thing written to the console it is only visible to users going out of their way to capture serial output. Signed-off-by: Soeren Moch <smoch@web.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> [ rm: note potential warning in commit message ] 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.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index a69a6742ecdc..616e44e7ef98 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -550,7 +550,7 @@ static int rk808_probe(struct i2c_client *client,
const struct mfd_cell *cells;
int nr_pre_init_regs;
int nr_cells;
- int pm_off = 0, msb, lsb;
+ int msb, lsb;
unsigned char pmic_id_msb, pmic_id_lsb;
int ret;
int i;
@@ -674,16 +674,9 @@ static int rk808_probe(struct i2c_client *client,
goto err_irq;
}
- pm_off = of_property_read_bool(np,
- "rockchip,system-power-controller");
- if (pm_off && !pm_power_off) {
+ if (of_property_read_bool(np, "rockchip,system-power-controller")) {
rk808_i2c_client = client;
pm_power_off = rk808->pm_pwroff_fn;
- }
-
- if (pm_off && !pm_power_off_prepare) {
- if (!rk808_i2c_client)
- rk808_i2c_client = client;
pm_power_off_prepare = rk808->pm_pwroff_prep_fn;
}