* [PATCH 00/15] Support ROHM BD71815 PMIC
@ 2021-01-08 13:27 Matti Vaittinen
2021-01-08 13:29 ` [PATCH 01/15] rtc: bd70528: Do not require parent data Matti Vaittinen
` (14 more replies)
0 siblings, 15 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:27 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
Patch series introducing support for ROHM BD71815 PMIC
Please note that this series depend on previously sent patches.
Already merged regulator patches (in regulator tree - not yet in Linus'
tree):
[PATCH] regulator: ROHM bd7xxxx: Do not depend on parent driver data
https://lore.kernel.org/lkml/20210105130221.GA3438042@localhost.localdomain/
[PATCH] regulator: bd718x7: Stop using parent data
https://lore.kernel.org/lkml/20210107122355.GA35080@localhost.localdomain/
Already merged GPIO patch (in GPIO tree - not yet in Linus' tree):
[PATCH] gpio: bd7xxxx: Do not depend on parent driver data
https://lore.kernel.org/lkml/20210105125335.GA3430233@localhost.localdomain/
Also, the patches 1 and 2 have been sent separately to clk and rtc
subsystems - but they have not yet been reviewed / applied. They are
present also in this series because the series depends on those changes.
I will drop those patches from this series if they get merged to clk/RTC
trees from previous submissions.
Please note that due to the dependencies all of the patches are probably
not applying cleanly to all subsystem trees. (regulator/RTC patches to
other subsystems). I understand it perfectly well if this series can't be
merged before all dependencies are merged to all relevant subsystem trees
but I would be grateful if I got the first set of review comments even
before that.
ROHM BD71815 is a power management IC used in some battery powered
systems. It contains regulators, GPO(s), charger + coulomb counter, RTC
and a clock gate.
All regulators can be controlled via I2C. LDO4 can additionally be set to
be enabled/disabled by a GPIO. LDO3 voltage could be selected from two
voltages written into separate VSEL reisters using GPIO but this mode is
not supported by driver. On top of that the PMIC has the typical HW
state machine which is present also on many other ROHM PMICs.
IC contains two GPOs - but one of the GPOs is marked as GND in
data-sheet. Thus the driver by default only exposes one GPO. The second
GPO can be enabled by special DT property.
RTC is almost similar to what is on BD71828. For currently used features
only the register address offset to RTC block differs.
The charger driver is not included in this series. ROHM has a charger
driver with some fuel-gauging logig written in but this is not included
here. I am working on separating the logic from HW specific driver and
supporting both BD71815 and BD71828 chargers in separate patch series.
---
Matti Vaittinen (15):
rtc: bd70528: Do not require parent data
clk: BD718x7: Do not depend on parent driver data
mfd: bd718x7: simplify by cleaning unnecessary device data
dt_bindings: bd71828: Add clock output mode
dt_bindings: mfd: Add ROHM BD71815 PMIC
dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
mfd: Add ROHM BD71815 ID
mfd: Support for ROHM BD71815 PMIC core
gpio: support ROHM BD71815 GPOs
regulator: helpers: Export helper voltage listing
regulator: rohm-regulator: SNVS dvs and linear voltage support
regulator: Support ROHM BD71815 regulators
clk: bd718x7: Add support for clk gate on ROHM BD71815 PMIC
rtc: bd70528: Support RTC on ROHM BD71815
MAINTAINERS: Add ROHM BD71815AGW
.../bindings/mfd/rohm,bd71815-pmic.yaml | 198 +++++
.../bindings/mfd/rohm,bd71828-pmic.yaml | 7 +
.../regulator/rohm,bd71815-regulator.yaml | 104 +++
MAINTAINERS | 3 +
drivers/clk/clk-bd718x7.c | 21 +-
drivers/gpio/Kconfig | 10 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-bd71815.c | 160 +++++
drivers/mfd/Kconfig | 15 +-
drivers/mfd/rohm-bd71828.c | 416 ++++++++++-
drivers/mfd/rohm-bd718x7.c | 43 +-
drivers/regulator/Kconfig | 11 +
drivers/regulator/Makefile | 1 +
drivers/regulator/bd71815-regulator.c | 675 ++++++++++++++++++
drivers/regulator/helpers.c | 36 +-
drivers/regulator/rohm-regulator.c | 23 +-
drivers/rtc/Kconfig | 6 +-
drivers/rtc/rtc-bd70528.c | 104 +--
include/linux/mfd/rohm-bd71815.h | 584 +++++++++++++++
include/linux/mfd/rohm-bd71828.h | 3 +
include/linux/mfd/rohm-bd718x7.h | 13 -
include/linux/mfd/rohm-generic.h | 7 +-
include/linux/regulator/driver.h | 2 +
23 files changed, 2300 insertions(+), 143 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
create mode 100644 drivers/gpio/gpio-bd71815.c
create mode 100644 drivers/regulator/bd71815-regulator.c
create mode 100644 include/linux/mfd/rohm-bd71815.h
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH 01/15] rtc: bd70528: Do not require parent data
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
@ 2021-01-08 13:29 ` Matti Vaittinen
2021-01-08 13:31 ` [PATCH 02/15] clk: BD718x7: Do not depend on parent driver data Matti Vaittinen
` (13 subsequent siblings)
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:29 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Matti Vaittinen, Linus Walleij, Alessandro Zummo,
Alexandre Belloni, linux-kernel, linux-power, linux-rtc
The ROHM BD71828 and BD71815 RTC drivers only need the regmap
pointer from parent. Regmap can be obtained via dev_get_regmap()
so do not require parent to populate driver data for that.
BD70528 on the other hand requires parent data to access the
watchdog so leave the parent data for BD70528 here for now.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
Please note that this same change has been sent individually:
https://lore.kernel.org/lkml/20210105152350.GA3714833@localhost.localdomain/
It is present in this series only because some patches depend on it.
drivers/rtc/rtc-bd70528.c | 67 ++++++++++++++++++---------------------
1 file changed, 31 insertions(+), 36 deletions(-)
diff --git a/drivers/rtc/rtc-bd70528.c b/drivers/rtc/rtc-bd70528.c
index 4492b770422c..a255aac6740a 100644
--- a/drivers/rtc/rtc-bd70528.c
+++ b/drivers/rtc/rtc-bd70528.c
@@ -52,6 +52,7 @@ struct bd70528_rtc_alm {
struct bd70528_rtc {
struct rohm_regmap_dev *parent;
+ struct regmap *regmap;
struct device *dev;
u8 reg_time_start;
bool has_rtc_timers;
@@ -234,9 +235,8 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a)
int ret;
struct bd71828_rtc_alm alm;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD71828_REG_RTC_ALM_START,
+ ret = regmap_bulk_read(r->regmap, BD71828_REG_RTC_ALM_START,
&alm, sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
@@ -250,7 +250,7 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a)
else
alm.alm_mask |= BD70528_MASK_ALM_EN;
- ret = regmap_bulk_write(parent->regmap, BD71828_REG_RTC_ALM_START,
+ ret = regmap_bulk_write(r->regmap, BD71828_REG_RTC_ALM_START,
&alm, sizeof(alm));
if (ret)
dev_err(dev, "Failed to set alarm time\n");
@@ -265,17 +265,16 @@ static int bd70528_set_alarm(struct device *dev, struct rtc_wkalrm *a)
struct bd70528_rtc_alm alm;
int ret;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD70528_REG_RTC_WAKE_START,
- &wake, sizeof(wake));
+ ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_WAKE_START, &wake,
+ sizeof(wake));
if (ret) {
dev_err(dev, "Failed to read wake regs\n");
return ret;
}
- ret = regmap_bulk_read(parent->regmap, BD70528_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_ALM_START, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -292,15 +291,14 @@ static int bd70528_set_alarm(struct device *dev, struct rtc_wkalrm *a)
wake.ctrl &= ~BD70528_MASK_WAKE_EN;
}
- ret = regmap_bulk_write(parent->regmap,
- BD70528_REG_RTC_WAKE_START, &wake,
+ ret = regmap_bulk_write(r->regmap, BD70528_REG_RTC_WAKE_START, &wake,
sizeof(wake));
if (ret) {
dev_err(dev, "Failed to set wake time\n");
return ret;
}
- ret = regmap_bulk_write(parent->regmap, BD70528_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_write(r->regmap, BD70528_REG_RTC_ALM_START, &alm,
+ sizeof(alm));
if (ret)
dev_err(dev, "Failed to set alarm time\n");
@@ -312,9 +310,8 @@ static int bd71828_read_alarm(struct device *dev, struct rtc_wkalrm *a)
int ret;
struct bd71828_rtc_alm alm;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD71828_REG_RTC_ALM_START,
+ ret = regmap_bulk_read(r->regmap, BD71828_REG_RTC_ALM_START,
&alm, sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
@@ -336,10 +333,9 @@ static int bd70528_read_alarm(struct device *dev, struct rtc_wkalrm *a)
struct bd70528_rtc_alm alm;
int ret;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
- ret = regmap_bulk_read(parent->regmap, BD70528_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_ALM_START, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -360,14 +356,12 @@ static int bd70528_set_time_locked(struct device *dev, struct rtc_time *t)
int ret, tmpret, old_states;
struct bd70528_rtc_data rtc_data;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
ret = bd70528_disable_rtc_based_timers(r, &old_states);
if (ret)
return ret;
- tmpret = regmap_bulk_read(parent->regmap,
- r->reg_time_start, &rtc_data,
+ tmpret = regmap_bulk_read(r->regmap, r->reg_time_start, &rtc_data,
sizeof(rtc_data));
if (tmpret) {
dev_err(dev, "Failed to read RTC time registers\n");
@@ -375,8 +369,7 @@ static int bd70528_set_time_locked(struct device *dev, struct rtc_time *t)
}
tm2rtc(t, &rtc_data);
- tmpret = regmap_bulk_write(parent->regmap,
- r->reg_time_start, &rtc_data,
+ tmpret = regmap_bulk_write(r->regmap, r->reg_time_start, &rtc_data,
sizeof(rtc_data));
if (tmpret) {
dev_err(dev, "Failed to set RTC time\n");
@@ -410,13 +403,11 @@ static int bd70528_set_time(struct device *dev, struct rtc_time *t)
static int bd70528_get_time(struct device *dev, struct rtc_time *t)
{
struct bd70528_rtc *r = dev_get_drvdata(dev);
- struct rohm_regmap_dev *parent = r->parent;
struct bd70528_rtc_data rtc_data;
int ret;
/* read the RTC date and time registers all at once */
- ret = regmap_bulk_read(parent->regmap,
- r->reg_time_start, &rtc_data,
+ ret = regmap_bulk_read(r->regmap, r->reg_time_start, &rtc_data,
sizeof(rtc_data));
if (ret) {
dev_err(dev, "Failed to read RTC time (err %d)\n", ret);
@@ -443,7 +434,7 @@ static int bd70528_alm_enable(struct device *dev, unsigned int enabled)
dev_err(dev, "Failed to change wake state\n");
goto out_unlock;
}
- ret = regmap_update_bits(r->parent->regmap, BD70528_REG_RTC_ALM_MASK,
+ ret = regmap_update_bits(r->regmap, BD70528_REG_RTC_ALM_MASK,
BD70528_MASK_ALM_EN, enableval);
if (ret)
dev_err(dev, "Failed to change alarm state\n");
@@ -462,7 +453,7 @@ static int bd71828_alm_enable(struct device *dev, unsigned int enabled)
if (!enabled)
enableval = 0;
- ret = regmap_update_bits(r->parent->regmap, BD71828_REG_RTC_ALM0_MASK,
+ ret = regmap_update_bits(r->regmap, BD71828_REG_RTC_ALM0_MASK,
BD70528_MASK_ALM_EN, enableval);
if (ret)
dev_err(dev, "Failed to change alarm state\n");
@@ -498,7 +489,6 @@ static int bd70528_probe(struct platform_device *pdev)
{
struct bd70528_rtc *bd_rtc;
const struct rtc_class_ops *rtc_ops;
- struct rohm_regmap_dev *parent;
const char *irq_name;
int ret;
struct rtc_device *rtc;
@@ -508,20 +498,25 @@ static int bd70528_probe(struct platform_device *pdev)
u8 hour_reg;
enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data;
- parent = dev_get_drvdata(pdev->dev.parent);
- if (!parent) {
- dev_err(&pdev->dev, "No MFD driver data\n");
- return -EINVAL;
- }
bd_rtc = devm_kzalloc(&pdev->dev, sizeof(*bd_rtc), GFP_KERNEL);
if (!bd_rtc)
return -ENOMEM;
- bd_rtc->parent = parent;
+ bd_rtc->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!bd_rtc->regmap) {
+ dev_err(&pdev->dev, "No regmap\n");
+ return -EINVAL;
+ }
+
bd_rtc->dev = &pdev->dev;
switch (chip) {
case ROHM_CHIP_TYPE_BD70528:
+ bd_rtc->parent = dev_get_drvdata(pdev->dev.parent);
+ if (!bd_rtc->parent) {
+ dev_err(&pdev->dev, "No MFD data\n");
+ return -EINVAL;
+ }
irq_name = "bd70528-rtc-alm";
bd_rtc->has_rtc_timers = true;
bd_rtc->reg_time_start = BD70528_REG_RTC_START;
@@ -547,7 +542,7 @@ static int bd70528_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, bd_rtc);
- ret = regmap_read(parent->regmap, hour_reg, &hr);
+ ret = regmap_read(bd_rtc->regmap, hour_reg, &hr);
if (ret) {
dev_err(&pdev->dev, "Failed to reag RTC clock\n");
@@ -595,7 +590,7 @@ static int bd70528_probe(struct platform_device *pdev)
* from sub-registers when IRQ is disabled or freed.
*/
if (enable_main_irq) {
- ret = regmap_update_bits(parent->regmap,
+ ret = regmap_update_bits(bd_rtc->regmap,
BD70528_REG_INT_MAIN_MASK,
BD70528_INT_RTC_MASK, 0);
if (ret) {
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 02/15] clk: BD718x7: Do not depend on parent driver data
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
2021-01-08 13:29 ` [PATCH 01/15] rtc: bd70528: Do not require parent data Matti Vaittinen
@ 2021-01-08 13:31 ` Matti Vaittinen
2021-01-08 13:32 ` [PATCH 03/15] mfd: bd718x7: simplify by cleaning unnecessary device data Matti Vaittinen
` (12 subsequent siblings)
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:31 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Matti Vaittinen, Michael Turquette, Stephen Boyd,
Linus Walleij, linux-kernel, linux-power, linux-clk
The bd718x7 only needs a regmap from parent device. This can be
obtained by call to dev_get_regmap. Do not require parent to
populate the driver data for this.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
Please note that this same change has been sent individually:
https://lore.kernel.org/lkml/20210105123028.GA3409663@localhost.localdomain/
It is present in this series only because some patches depend on it.
drivers/clk/clk-bd718x7.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c
index b52e8d6f660c..17d90e09f1c0 100644
--- a/drivers/clk/clk-bd718x7.c
+++ b/drivers/clk/clk-bd718x7.c
@@ -31,12 +31,12 @@ struct bd718xx_clk {
u8 reg;
u8 mask;
struct platform_device *pdev;
- struct rohm_regmap_dev *mfd;
+ struct regmap *regmap;
};
static int bd71837_clk_set(struct bd718xx_clk *c, unsigned int status)
{
- return regmap_update_bits(c->mfd->regmap, c->reg, c->mask, status);
+ return regmap_update_bits(c->regmap, c->reg, c->mask, status);
}
static void bd71837_clk_disable(struct clk_hw *hw)
@@ -62,7 +62,7 @@ static int bd71837_clk_is_enabled(struct clk_hw *hw)
int rval;
struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
- rval = regmap_read(c->mfd->regmap, c->reg, &enabled);
+ rval = regmap_read(c->regmap, c->reg, &enabled);
if (rval)
return rval;
@@ -82,7 +82,6 @@ static int bd71837_clk_probe(struct platform_device *pdev)
int rval = -ENOMEM;
const char *parent_clk;
struct device *parent = pdev->dev.parent;
- struct rohm_regmap_dev *mfd = dev_get_drvdata(parent);
struct clk_init_data init = {
.name = "bd718xx-32k-out",
.ops = &bd71837_clk_ops,
@@ -93,6 +92,10 @@ static int bd71837_clk_probe(struct platform_device *pdev)
if (!c)
return -ENOMEM;
+ c->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!c->regmap)
+ return -ENODEV;
+
init.num_parents = 1;
parent_clk = of_clk_get_parent_name(parent->of_node, 0);
@@ -119,7 +122,6 @@ static int bd71837_clk_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Unknown clk chip\n");
return -EINVAL;
}
- c->mfd = mfd;
c->pdev = pdev;
c->hw.init = &init;
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 03/15] mfd: bd718x7: simplify by cleaning unnecessary device data
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
2021-01-08 13:29 ` [PATCH 01/15] rtc: bd70528: Do not require parent data Matti Vaittinen
2021-01-08 13:31 ` [PATCH 02/15] clk: BD718x7: Do not depend on parent driver data Matti Vaittinen
@ 2021-01-08 13:32 ` Matti Vaittinen
2021-01-08 13:34 ` [PATCH 04/15] dt_bindings: bd71828: Add clock output mode Matti Vaittinen
` (11 subsequent siblings)
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:32 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
Most ROHM PMIC sub-devices only use the regmap pointer from
parent device. They can obtain this by dev_get_regamap so in
most cases the MFD device does not need to allocate and populate
the driver data. Simplify drivers by removing this.
The BD70528 still needs the access to watchdog mutex so keep
rohm_regmap_dev in use on BD70528 RTC and WDG drivers for now.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/mfd/rohm-bd718x7.c | 43 ++++++++++++--------------------
include/linux/mfd/rohm-bd718x7.h | 13 ----------
2 files changed, 16 insertions(+), 40 deletions(-)
diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c
index c32c1b6c98fa..bfd81f78beae 100644
--- a/drivers/mfd/rohm-bd718x7.c
+++ b/drivers/mfd/rohm-bd718x7.c
@@ -91,9 +91,9 @@ static const struct regmap_config bd718xx_regmap_config = {
.cache_type = REGCACHE_RBTREE,
};
-static int bd718xx_init_press_duration(struct bd718xx *bd718xx)
+static int bd718xx_init_press_duration(struct regmap *regmap,
+ struct device *dev)
{
- struct device* dev = bd718xx->chip.dev;
u32 short_press_ms, long_press_ms;
u32 short_press_value, long_press_value;
int ret;
@@ -102,8 +102,7 @@ static int bd718xx_init_press_duration(struct bd718xx *bd718xx)
&short_press_ms);
if (!ret) {
short_press_value = min(15u, (short_press_ms + 250) / 500);
- ret = regmap_update_bits(bd718xx->chip.regmap,
- BD718XX_REG_PWRONCONFIG0,
+ ret = regmap_update_bits(regmap, BD718XX_REG_PWRONCONFIG0,
BD718XX_PWRBTN_PRESS_DURATION_MASK,
short_press_value);
if (ret) {
@@ -116,8 +115,7 @@ static int bd718xx_init_press_duration(struct bd718xx *bd718xx)
&long_press_ms);
if (!ret) {
long_press_value = min(15u, (long_press_ms + 500) / 1000);
- ret = regmap_update_bits(bd718xx->chip.regmap,
- BD718XX_REG_PWRONCONFIG1,
+ ret = regmap_update_bits(regmap, BD718XX_REG_PWRONCONFIG1,
BD718XX_PWRBTN_PRESS_DURATION_MASK,
long_press_value);
if (ret) {
@@ -132,7 +130,8 @@ static int bd718xx_init_press_duration(struct bd718xx *bd718xx)
static int bd718xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
- struct bd718xx *bd718xx;
+ struct regmap *regmap;
+ struct regmap_irq_chip_data *irq_data;
int ret;
unsigned int chip_type;
struct mfd_cell *mfd;
@@ -142,13 +141,6 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c,
dev_err(&i2c->dev, "No IRQ configured\n");
return -EINVAL;
}
-
- bd718xx = devm_kzalloc(&i2c->dev, sizeof(struct bd718xx), GFP_KERNEL);
-
- if (!bd718xx)
- return -ENOMEM;
-
- bd718xx->chip_irq = i2c->irq;
chip_type = (unsigned int)(uintptr_t)
of_device_get_match_data(&i2c->dev);
switch (chip_type) {
@@ -164,29 +156,26 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c,
dev_err(&i2c->dev, "Unknown device type");
return -EINVAL;
}
- bd718xx->chip.dev = &i2c->dev;
- dev_set_drvdata(&i2c->dev, bd718xx);
- bd718xx->chip.regmap = devm_regmap_init_i2c(i2c,
- &bd718xx_regmap_config);
- if (IS_ERR(bd718xx->chip.regmap)) {
+ regmap = devm_regmap_init_i2c(i2c, &bd718xx_regmap_config);
+ if (IS_ERR(regmap)) {
dev_err(&i2c->dev, "regmap initialization failed\n");
- return PTR_ERR(bd718xx->chip.regmap);
+ return PTR_ERR(regmap);
}
- ret = devm_regmap_add_irq_chip(&i2c->dev, bd718xx->chip.regmap,
- bd718xx->chip_irq, IRQF_ONESHOT, 0,
- &bd718xx_irq_chip, &bd718xx->irq_data);
+ ret = devm_regmap_add_irq_chip(&i2c->dev, regmap, i2c->irq,
+ IRQF_ONESHOT, 0, &bd718xx_irq_chip,
+ &irq_data);
if (ret) {
dev_err(&i2c->dev, "Failed to add irq_chip\n");
return ret;
}
- ret = bd718xx_init_press_duration(bd718xx);
+ ret = bd718xx_init_press_duration(regmap, &i2c->dev);
if (ret)
return ret;
- ret = regmap_irq_get_virq(bd718xx->irq_data, BD718XX_INT_PWRBTN_S);
+ ret = regmap_irq_get_virq(irq_data, BD718XX_INT_PWRBTN_S);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to get the IRQ\n");
@@ -195,9 +184,9 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c,
button.irq = ret;
- ret = devm_mfd_add_devices(bd718xx->chip.dev, PLATFORM_DEVID_AUTO,
+ ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
mfd, cells, NULL, 0,
- regmap_irq_get_domain(bd718xx->irq_data));
+ regmap_irq_get_domain(irq_data));
if (ret)
dev_err(&i2c->dev, "Failed to create subdevices\n");
diff --git a/include/linux/mfd/rohm-bd718x7.h b/include/linux/mfd/rohm-bd718x7.h
index bee2474a8f9f..df2918198d37 100644
--- a/include/linux/mfd/rohm-bd718x7.h
+++ b/include/linux/mfd/rohm-bd718x7.h
@@ -310,17 +310,4 @@ enum {
BD718XX_PWRBTN_LONG_PRESS_15S
};
-struct bd718xx {
- /*
- * Please keep this as the first member here as some
- * drivers (clk) supporting more than one chip may only know this
- * generic struct 'struct rohm_regmap_dev' and assume it is
- * the first chunk of parent device's private data.
- */
- struct rohm_regmap_dev chip;
-
- int chip_irq;
- struct regmap_irq_chip_data *irq_data;
-};
-
#endif /* __LINUX_MFD_BD718XX_H__ */
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 04/15] dt_bindings: bd71828: Add clock output mode
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (2 preceding siblings ...)
2021-01-08 13:32 ` [PATCH 03/15] mfd: bd718x7: simplify by cleaning unnecessary device data Matti Vaittinen
@ 2021-01-08 13:34 ` Matti Vaittinen
2021-01-13 13:52 ` Rob Herring
2021-01-08 13:34 ` [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC Matti Vaittinen
` (10 subsequent siblings)
14 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:34 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Matti Vaittinen, Michael Turquette,
Stephen Boyd, Linus Walleij, devicetree, linux-kernel,
linux-power, linux-clk
The BD71828 allows configuring the clk32kout pin mode to CMOS or
open-drain. Add device-tree property for specifying the preferred mode.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
.../devicetree/bindings/mfd/rohm,bd71828-pmic.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
index 3a6a1a26e2b3..cba085836bc0 100644
--- a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
+++ b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
@@ -44,6 +44,13 @@ properties:
clock-output-names:
const: bd71828-32k-out
+ rohm,clkout-mode:
+ description: clk32kout mode. Can be set to "open-drain" or "cmos".
+ $ref: "/schemas/types.yaml#/definitions/string"
+ enum:
+ - open-drain
+ - cmos
+
rohm,charger-sense-resistor-ohms:
minimum: 10000000
maximum: 50000000
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (3 preceding siblings ...)
2021-01-08 13:34 ` [PATCH 04/15] dt_bindings: bd71828: Add clock output mode Matti Vaittinen
@ 2021-01-08 13:34 ` Matti Vaittinen
2021-01-11 19:06 ` Rob Herring
2021-01-08 13:36 ` [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators Matti Vaittinen
` (9 subsequent siblings)
14 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:34 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
Document DT bindings for ROHM BD71815.
BD71815 is a single-chip power management IC mainly for battery-powered
portable devices. The IC integrates 5 bucks, 7 LDOs, a boost driver for
LED, a battery charger with a Coulomb counter, a real-time clock, a 32kHz
clock and two general-purpose outputs although only one is documented by
the data-sheet.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
.../bindings/mfd/rohm,bd71815-pmic.yaml | 198 ++++++++++++++++++
1 file changed, 198 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
new file mode 100644
index 000000000000..2206b2008acd
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
@@ -0,0 +1,198 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD71815 Power Management Integrated Circuit bindings
+
+maintainers:
+ - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
+
+description: |
+ BD71815AGW is a single-chip power management ICs for battery-powered
+ portable devices. It integrates 5 buck converters, 8 LDOs, a boost driver
+ for LED and a 500 mA single-cell linear charger. Also included is a Coulomb
+ counter, a real-time clock (RTC), and a 32.768 kHz clock gate and two GPOs.
+
+properties:
+ compatible:
+ const: rohm,bd71815
+
+ reg:
+ description:
+ I2C slave address.
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ gpio-controller: true
+ "#gpio-cells":
+ const: 2
+ description: |
+ The first cell is the pin number and the second cell is used to specify
+ flags. See ../gpio/gpio.txt for more information.
+
+ clocks:
+ maxItems: 1
+ "#clock-cells":
+ const: 0
+ clock-output-names:
+ const: bd71815-32k-out
+
+ rohm,clkout-mode:
+ description: clk32kout mode. Can be set to "open-drain" or "cmos".
+ $ref: "/schemas/types.yaml#/definitions/string"
+ enum:
+ - open-drain
+ - cmos
+
+ rohm,charger-sense-resistor-ohms:
+ minimum: 10000000
+ maximum: 50000000
+ description: |
+ BD71827 and BD71828 have SAR ADC for measuring charging currents.
+ External sense resistor (RSENSE in data sheet) should be used. If some
+ other but 30MOhm resistor is used the resistance value should be given
+ here in Ohms.
+
+ regulators:
+ $ref: ../regulator/rohm,bd71815-regulator.yaml
+ description:
+ List of child nodes that specify the regulators.
+
+ gpio-reserved-ranges:
+ description: |
+ Usage of BD71828 GPIO pins can be changed via OTP. This property can be
+ used to mark the pins which should not be configured for GPIO. Please see
+ the ../gpio/gpio.txt for more information.
+
+ rohm,enable-hidden-gpo:
+ description: |
+ The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the
+ data-sheet as it's location in the middle of GND pins makes it hard to
+ use on PCB. If your board has managed to use this pin you can enable the
+ second GPO by defining this property. Dont enable this if you are unsure
+ about how the E5 pin is connected on your board.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - "#clock-cells"
+ - regulators
+ - gpio-controller
+ - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/leds/common.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pmic: pmic@4b {
+ compatible = "rohm,bd71815";
+ reg = <0x4b>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
+
+ clocks = <&osc 0>;
+ #clock-cells = <0>;
+ clock-output-names = "bd71815-32k-out";
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ rohm,charger-sense-resistor-ohms = <10000000>;
+
+ regulators {
+ buck1: buck1 {
+ regulator-name = "buck1";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-always-on;
+ regulator-ramp-delay = <1250>;
+ rohm,dvs-run-voltage = <1150000>;
+ rohm,dvs-suspend-voltage = <950000>;
+ };
+ buck2: buck2 {
+ regulator-name = "buck2";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-always-on;
+ regulator-ramp-delay = <1250>;
+ rohm,dvs-run-voltage = <1150000>;
+ rohm,dvs-suspend-voltage = <950000>;
+ };
+ buck3: buck3 {
+ regulator-name = "buck3";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <2700000>;
+ regulator-always-on;
+ };
+ buck4: buck4 {
+ regulator-name = "buck4";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1850000>;
+ regulator-always-on;
+ };
+ buck5: buck5 {
+ regulator-name = "buck5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ ldo1: ldo1 {
+ regulator-name = "ldo1";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ ldo2: ldo2 {
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ ldo3: ldo3 {
+ regulator-name = "ldo3";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ ldo4: ldo4 {
+ regulator-name = "ldo4";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ ldo5: ldo5 {
+ regulator-name = "ldo5";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+ ldo6: ldodvref {
+ regulator-name = "ldodvref";
+ regulator-always-on;
+ };
+ ldo7: ldolpsr {
+ regulator-name = "ldolpsr";
+ regulator-always-on;
+ };
+
+ boost: wled {
+ regulator-name = "wled";
+ regulator-min-microamp = <10>;
+ regulator-max-microamp = <25000>;
+ };
+ };
+ };
+ };
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (4 preceding siblings ...)
2021-01-08 13:34 ` [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC Matti Vaittinen
@ 2021-01-08 13:36 ` Matti Vaittinen
2021-01-11 19:09 ` Rob Herring
2021-01-08 13:37 ` [PATCH 07/15] mfd: Add ROHM BD71815 ID Matti Vaittinen
` (8 subsequent siblings)
14 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:36 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Linus Walleij, devicetree, linux-kernel,
linux-power, linux-gpio
Add binding documentation for regulators on ROHM BD71815 PMIC.
5 bucks, 7 LDOs and a boost for LED.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
.../regulator/rohm,bd71815-regulator.yaml | 104 ++++++++++++++++++
1 file changed, 104 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
new file mode 100644
index 000000000000..2aa21603698c
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD71815 Power Management Integrated Circuit regulators
+
+maintainers:
+ - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
+
+description: |
+ This module is part of the ROHM BD718215 MFD device. For more details
+ see Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml.
+
+ The regulator controller is represented as a sub-node of the PMIC node
+ on the device tree.
+
+ The valid names for BD71815 regulator nodes are
+ buck1, buck2, buck3, buck4, buck5,
+ ldo1, ldo2, ldo3, ldo4, ldo5,
+ ldodvref, ldolpsr, wled
+
+patternProperties:
+ "^(ldo|buck)[1-5]$":
+ type: object
+ description:
+ Properties for single LDO/BUCK regulator.
+ $ref: regulator.yaml#
+
+ properties:
+ regulator-name:
+ pattern: "^(ldo|buck)[1-5]$"
+ description:
+ should be "ldo1", ..., "ldo5" and "buck1", ..., "buck5"
+
+ rohm,vsel-gpios:
+ description:
+ GPIO used to control ldo4 state (when ldo4 is controlled by GPIO).
+
+ rohm,dvs-run-voltage:
+ description:
+ PMIC "RUN" state voltage in uV when PMIC HW states are used. See
+ comments below for bucks/LDOs which support this. 0 means
+ regulator should be disabled at RUN state.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ rohm,dvs-snvs-voltage:
+ description:
+ Whether to keep regulator enabled at "SNVS" state or not.
+ 0 means regulator should be disabled at SNVS state, non zero voltage
+ keeps regulator enabled. BD71815 does not change voltage level
+ when PMIC transitions to SNVS.SNVS voltage depends on the previous
+ state (from which the PMIC transitioned to SNVS).
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ rohm,dvs-suspend-voltage:
+ description:
+ PMIC "SUSPEND" state voltage in uV when PMIC HW states are used. See
+ comments below for bucks/LDOs which support this. 0 means
+ regulator should be disabled at SUSPEND state.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ rohm,dvs-lpsr-voltage:
+ description:
+ PMIC "LPSR" state voltage in uV when PMIC HW states are used. See
+ comments below for bucks/LDOs which support this. 0 means
+ regulator should be disabled at LPSR state.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3300000
+
+ # Bucks 1 and 2 support giving separate voltages for operational states
+ # (RUN /CLEAN according to data-sheet) and non operational states
+ # (LPSR/SUSPEND). The voltage is automatically changed when HW
+ # state changes. Omitting these properties from bucks 1 and 2 leave
+ # buck voltages to not be toggled by HW state. Enable status may still
+ # be toggled by state changes depending on HW default settings.
+ #
+ # Bucks 3-5 and ldos 1-5 support setting the RUN state voltage here.
+ # Given RUN voltage is used at all states if regulator is enabled at
+ # given state.
+ # Values given for other states are regarded as enable/disable at
+ # given state (see below).
+ #
+ # All regulators except WLED support specifying enable/disable status
+ # for each of the HW states (RUN/SNVS/SUSPEND/LPSR). HW defaults can
+ # be overridden by setting voltage to 0 (regulator disabled at given
+ # state) or non-zero (regulator enabled at given state). Please note
+ # that setting non zero voltages for bucks 1/2 will also enable voltage
+ # changes according to state change.
+
+ required:
+ - regulator-name
+
+ unevaluatedProperties: false
+
+additionalProperties: false
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 07/15] mfd: Add ROHM BD71815 ID
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (5 preceding siblings ...)
2021-01-08 13:36 ` [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators Matti Vaittinen
@ 2021-01-08 13:37 ` Matti Vaittinen
2021-01-08 13:37 ` [PATCH 08/15] mfd: Support for ROHM BD71815 PMIC core Matti Vaittinen
` (7 subsequent siblings)
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:37 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
Add chip ID for ROHM BD71815 and PMIC so that drivers can identify
this IC.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
include/linux/mfd/rohm-generic.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
index 4283b5b33e04..e99e569d3cc1 100644
--- a/include/linux/mfd/rohm-generic.h
+++ b/include/linux/mfd/rohm-generic.h
@@ -12,6 +12,7 @@ enum rohm_chip_type {
ROHM_CHIP_TYPE_BD71847,
ROHM_CHIP_TYPE_BD70528,
ROHM_CHIP_TYPE_BD71828,
+ ROHM_CHIP_TYPE_BD71815,
ROHM_CHIP_TYPE_AMOUNT
};
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 08/15] mfd: Support for ROHM BD71815 PMIC core
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (6 preceding siblings ...)
2021-01-08 13:37 ` [PATCH 07/15] mfd: Add ROHM BD71815 ID Matti Vaittinen
@ 2021-01-08 13:37 ` Matti Vaittinen
2021-01-08 13:39 ` [PATCH 09/15] gpio: support ROHM BD71815 GPOs Matti Vaittinen
` (6 subsequent siblings)
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:37 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
Add core support for ROHM BD71815 Power Management IC.
The IC integrates regulators, a battery charger with a coulomb counter,
a real-time clock (RTC), clock gate and general-purpose outputs (GPO).
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/mfd/Kconfig | 15 +-
drivers/mfd/rohm-bd71828.c | 416 ++++++++++++++++++++--
include/linux/mfd/rohm-bd71815.h | 584 +++++++++++++++++++++++++++++++
include/linux/mfd/rohm-bd71828.h | 3 +
4 files changed, 975 insertions(+), 43 deletions(-)
create mode 100644 include/linux/mfd/rohm-bd71815.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 8b99a13669bf..eb8bfb663dfa 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1996,19 +1996,20 @@ config MFD_ROHM_BD70528
charger.
config MFD_ROHM_BD71828
- tristate "ROHM BD71828 Power Management IC"
+ tristate "ROHM BD71828 and BD71815 Power Management IC"
depends on I2C=y
depends on OF
select REGMAP_I2C
select REGMAP_IRQ
select MFD_CORE
help
- Select this option to get support for the ROHM BD71828 Power
- Management IC. BD71828GW is a single-chip power management IC for
- battery-powered portable devices. The IC integrates 7 buck
- converters, 7 LDOs, and a 1500 mA single-cell linear charger.
- Also included is a Coulomb counter, a real-time clock (RTC), and
- a 32.768 kHz clock gate.
+ Select this option to get support for the ROHM BD71828 and BD71815
+ Power Management ICs. BD71828GW and BD71815AGW are single-chip power
+ management ICs mainly for battery-powered portable devices.
+ The BD71828 integrates 7 buck converters and 7 LDOs. The BD71815
+ has 5 bucks, 7 LDOs, and a boost for driving LEDs. Both ICs provide
+ also a single-cell linear charger, a Coulomb counter, a real-time
+ clock (RTC), GPIOs and a 32.768 kHz clock gate.
config MFD_STM32_LPTIMER
tristate "Support for STM32 Low-Power Timer"
diff --git a/drivers/mfd/rohm-bd71828.c b/drivers/mfd/rohm-bd71828.c
index 210261d026f2..28b82477ce4c 100644
--- a/drivers/mfd/rohm-bd71828.c
+++ b/drivers/mfd/rohm-bd71828.c
@@ -2,7 +2,7 @@
//
// Copyright (C) 2019 ROHM Semiconductors
//
-// ROHM BD71828 PMIC driver
+// ROHM BD71828/BD71815 PMIC driver
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
@@ -11,7 +11,9 @@
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
+#include <linux/mfd/rohm-bd71815.h>
#include <linux/mfd/rohm-bd71828.h>
+#include <linux/mfd/rohm-generic.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
@@ -29,12 +31,102 @@ static struct gpio_keys_platform_data bd71828_powerkey_data = {
.name = "bd71828-pwrkey",
};
-static const struct resource rtc_irqs[] = {
+static const struct resource bd71815_rtc_irqs[] = {
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC0, "bd71815-rtc-alm-0"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC1, "bd71815-rtc-alm-1"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC2, "bd71815-rtc-alm-2"),
+};
+
+static const struct resource bd71828_rtc_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd71828-rtc-alm-0"),
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd71828-rtc-alm-1"),
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC2, "bd71828-rtc-alm-2"),
};
+static struct resource bd71815_power_irqs[] = {
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_RMV, "bd71815-dcin-rmv"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-clps-out"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-clps-in"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_RES, "bd71815-dcin-ovp-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_DET, "bd71815-dcin-ovp-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_RES, "bd71815-dcin-mon-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_DET, "bd71815-dcin-mon-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_UV_RES, "bd71815-vsys-uv-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_UV_DET, "bd71815-vsys-uv-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_RES, "bd71815-vsys-low-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_DET, "bd71815-vsys-low-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TEMP, "bd71815-chg-wdg-temp"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TIME, "bd71815-chg-wdg"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_RES, "bd71815-rechg-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_DET, "bd71815-rechg-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RANGED_TEMP_TRANSITION,
+ "bd71815-ranged-temp-transit"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_STATE_TRANSITION,
+ "bd71815-chg-state-change"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_TEMP_NORMAL,
+ "bd71815-bat-temp-normal"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_TEMP_ERANGE,
+ "bd71815-bat-temp-erange"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_REMOVED, "bd71815-bat-rmv"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_DETECTED, "bd71815-bat-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_THERM_REMOVED, "bd71815-therm-rmv"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_THERM_DETECTED, "bd71815-therm-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_DEAD, "bd71815-bat-dead"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_SHORTC_RES,
+ "bd71815-bat-short-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_SHORTC_DET,
+ "bd71815-bat-short-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_LOW_VOLT_RES,
+ "bd71815-bat-low-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_LOW_VOLT_DET,
+ "bd71815-bat-low-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_VOLT_RES,
+ "bd71815-bat-over-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_VOLT_DET,
+ "bd71815-bat-over-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_MON_RES, "bd71815-bat-mon-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_MON_DET, "bd71815-bat-mon-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON1, "bd71815-bat-cc-mon1"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON2, "bd71815-bat-cc-mon2"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON3, "bd71815-bat-cc-mon3"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_1_RES,
+ "bd71815-bat-oc1-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_1_DET,
+ "bd71815-bat-oc1-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_RES,
+ "bd71815-bat-oc2-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_DET,
+ "bd71815-bat-oc2-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_RES,
+ "bd71815-bat-oc3-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_DET,
+ "bd71815-bat-oc3-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES,
+ "bd71815-bat-low-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET,
+ "bd71815-bat-low-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-bat-hi-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-bat-hi-det"),
+};
+
+static struct mfd_cell bd71815_mfd_cells[] = {
+ { .name = "bd71815-pmic", },
+ { .name = "bd71815-clk", },
+ { .name = "bd71815-gpo", },
+ {
+ .name = "bd71815-power",
+ .num_resources = ARRAY_SIZE(bd71815_power_irqs),
+ .resources = &bd71815_power_irqs[0],
+ },
+ {
+ .name = "bd71815-rtc",
+ .num_resources = ARRAY_SIZE(bd71815_rtc_irqs),
+ .resources = &bd71815_rtc_irqs[0],
+ },
+};
+
static struct mfd_cell bd71828_mfd_cells[] = {
{ .name = "bd71828-pmic", },
{ .name = "bd71828-gpio", },
@@ -47,8 +139,8 @@ static struct mfd_cell bd71828_mfd_cells[] = {
{ .name = "bd71827-power", },
{
.name = "bd71828-rtc",
- .resources = rtc_irqs,
- .num_resources = ARRAY_SIZE(rtc_irqs),
+ .resources = bd71828_rtc_irqs,
+ .num_resources = ARRAY_SIZE(bd71828_rtc_irqs),
}, {
.name = "gpio-keys",
.platform_data = &bd71828_powerkey_data,
@@ -56,7 +148,35 @@ static struct mfd_cell bd71828_mfd_cells[] = {
},
};
-static const struct regmap_range volatile_ranges[] = {
+static const struct regmap_range bd71815_volatile_ranges[] = {
+ {
+ .range_min = BD71815_REG_SEC,
+ .range_max = BD71815_REG_YEAR,
+ }, {
+ .range_min = BD71815_REG_CONF,
+ .range_max = BD71815_REG_BAT_TEMP,
+ }, {
+ .range_min = BD71815_REG_VM_IBAT_U,
+ .range_max = BD71815_REG_CC_CTRL,
+ }, {
+ .range_min = BD71815_REG_CC_STAT,
+ .range_max = BD71815_REG_CC_CURCD_L,
+ }, {
+ .range_min = BD71815_REG_VM_BTMP_MON,
+ .range_max = BD71815_REG_VM_BTMP_MON,
+ }, {
+ .range_min = BD71815_REG_INT_STAT,
+ .range_max = BD71815_REG_INT_UPDATE,
+ }, {
+ .range_min = BD71815_REG_VM_VSYS_U,
+ .range_max = BD71815_REG_REX_CTRL_1,
+ }, {
+ .range_min = BD71815_REG_FULL_CCNTD_3,
+ .range_max = BD71815_REG_CCNTD_CHG_2,
+ },
+};
+
+static const struct regmap_range bd71828_volatile_ranges[] = {
{
.range_min = BD71828_REG_PS_CTRL_1,
.range_max = BD71828_REG_PS_CTRL_1,
@@ -80,15 +200,28 @@ static const struct regmap_range volatile_ranges[] = {
},
};
-static const struct regmap_access_table volatile_regs = {
- .yes_ranges = &volatile_ranges[0],
- .n_yes_ranges = ARRAY_SIZE(volatile_ranges),
+static const struct regmap_access_table bd71815_volatile_regs = {
+ .yes_ranges = &bd71815_volatile_ranges[0],
+ .n_yes_ranges = ARRAY_SIZE(bd71815_volatile_ranges),
+};
+
+static const struct regmap_access_table bd71828_volatile_regs = {
+ .yes_ranges = &bd71828_volatile_ranges[0],
+ .n_yes_ranges = ARRAY_SIZE(bd71828_volatile_ranges),
+};
+
+static const struct regmap_config bd71815_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .volatile_table = &bd71815_volatile_regs,
+ .max_register = BD71815_MAX_REGISTER - 1,
+ .cache_type = REGCACHE_RBTREE,
};
-static struct regmap_config bd71828_regmap = {
+static const struct regmap_config bd71828_regmap = {
.reg_bits = 8,
.val_bits = 8,
- .volatile_table = &volatile_regs,
+ .volatile_table = &bd71828_volatile_regs,
.max_register = BD71828_MAX_REGISTER,
.cache_type = REGCACHE_RBTREE,
};
@@ -96,7 +229,7 @@ static struct regmap_config bd71828_regmap = {
/*
* Mapping of main IRQ register bits to sub-IRQ register offsets so that we can
* access corect sub-IRQ registers based on bits that are set in main IRQ
- * register.
+ * register. BD71815 and BD71828 have same sub-register-block offests.
*/
static unsigned int bit0_offsets[] = {11}; /* RTC IRQ */
@@ -108,7 +241,7 @@ static unsigned int bit5_offsets[] = {3}; /* VSYS IRQ */
static unsigned int bit6_offsets[] = {1, 2}; /* DCIN IRQ */
static unsigned int bit7_offsets[] = {0}; /* BUCK IRQ */
-static struct regmap_irq_sub_irq_map bd71828_sub_irq_offsets[] = {
+static struct regmap_irq_sub_irq_map bd718xx_sub_irq_offsets[] = {
REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),
@@ -119,6 +252,130 @@ static struct regmap_irq_sub_irq_map bd71828_sub_irq_offsets[] = {
REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets),
};
+static const struct regmap_irq bd71815_irqs[] = {
+ REGMAP_IRQ_REG(BD71815_INT_BUCK1_OCP, 0, BD71815_INT_BUCK1_OCP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BUCK2_OCP, 0, BD71815_INT_BUCK2_OCP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BUCK3_OCP, 0, BD71815_INT_BUCK3_OCP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BUCK4_OCP, 0, BD71815_INT_BUCK4_OCP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BUCK5_OCP, 0, BD71815_INT_BUCK5_OCP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_LED_OVP, 0, BD71815_INT_LED_OVP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_LED_OCP, 0, BD71815_INT_LED_OCP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_LED_SCP, 0, BD71815_INT_LED_SCP_MASK),
+ /* DCIN1 interrupts */
+ REGMAP_IRQ_REG(BD71815_INT_DCIN_RMV, 1, BD71815_INT_DCIN_RMV_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CLPS_OUT, 1, BD71815_INT_CLPS_OUT_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CLPS_IN, 1, BD71815_INT_CLPS_IN_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_DCIN_OVP_RES, 1,
+ BD71815_INT_DCIN_OVP_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_DCIN_OVP_DET, 1,
+ BD71815_INT_DCIN_OVP_DET_MASK),
+ /* DCIN2 interrupts */
+ REGMAP_IRQ_REG(BD71815_INT_DCIN_MON_RES, 2,
+ BD71815_INT_DCIN_MON_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_DCIN_MON_DET, 2,
+ BD71815_INT_DCIN_MON_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_WDOG, 2, BD71815_INT_WDOG_MASK),
+ /* Vsys */
+ REGMAP_IRQ_REG(BD71815_INT_VSYS_UV_RES, 3,
+ BD71815_INT_VSYS_UV_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_VSYS_UV_DET, 3,
+ BD71815_INT_VSYS_UV_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_VSYS_LOW_RES, 3,
+ BD71815_INT_VSYS_LOW_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_VSYS_LOW_DET, 3,
+ BD71815_INT_VSYS_LOW_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_VSYS_MON_RES, 3,
+ BD71815_INT_VSYS_MON_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_VSYS_MON_DET, 3,
+ BD71815_INT_VSYS_MON_DET_MASK),
+ /* Charger */
+ REGMAP_IRQ_REG(BD71815_INT_CHG_WDG_TEMP, 4,
+ BD71815_INT_CHG_WDG_TEMP_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CHG_WDG_TIME, 4,
+ BD71815_INT_CHG_WDG_TIME_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CHG_RECHARGE_RES, 4,
+ BD71815_INT_CHG_RECHARGE_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CHG_RECHARGE_DET, 4,
+ BD71815_INT_CHG_RECHARGE_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CHG_RANGED_TEMP_TRANSITION, 4,
+ BD71815_INT_CHG_RANGED_TEMP_TRANSITION_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_CHG_STATE_TRANSITION, 4,
+ BD71815_INT_CHG_STATE_TRANSITION_MASK),
+ /* Battery */
+ REGMAP_IRQ_REG(BD71815_INT_BAT_TEMP_NORMAL, 5,
+ BD71815_INT_BAT_TEMP_NORMAL_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_TEMP_ERANGE, 5,
+ BD71815_INT_BAT_TEMP_ERANGE_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_REMOVED, 5,
+ BD71815_INT_BAT_REMOVED_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_DETECTED, 5,
+ BD71815_INT_BAT_DETECTED_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_THERM_REMOVED, 5,
+ BD71815_INT_THERM_REMOVED_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_THERM_DETECTED, 5,
+ BD71815_INT_THERM_DETECTED_MASK),
+ /* Battery Mon 1 */
+ REGMAP_IRQ_REG(BD71815_INT_BAT_DEAD, 6, BD71815_INT_BAT_DEAD_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_SHORTC_RES, 6,
+ BD71815_INT_BAT_SHORTC_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_SHORTC_DET, 6,
+ BD71815_INT_BAT_SHORTC_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_LOW_VOLT_RES, 6,
+ BD71815_INT_BAT_LOW_VOLT_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_LOW_VOLT_DET, 6,
+ BD71815_INT_BAT_LOW_VOLT_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_VOLT_RES, 6,
+ BD71815_INT_BAT_OVER_VOLT_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_VOLT_DET, 6,
+ BD71815_INT_BAT_OVER_VOLT_DET_MASK),
+ /* Battery Mon 2 */
+ REGMAP_IRQ_REG(BD71815_INT_BAT_MON_RES, 7,
+ BD71815_INT_BAT_MON_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_MON_DET, 7,
+ BD71815_INT_BAT_MON_DET_MASK),
+ /* Battery Mon 3 (Coulomb counter) */
+ REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON1, 8,
+ BD71815_INT_BAT_CC_MON1_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON2, 8,
+ BD71815_INT_BAT_CC_MON2_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON3, 8,
+ BD71815_INT_BAT_CC_MON3_MASK),
+ /* Battery Mon 4 */
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_1_RES, 9,
+ BD71815_INT_BAT_OVER_CURR_1_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_1_DET, 9,
+ BD71815_INT_BAT_OVER_CURR_1_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_2_RES, 9,
+ BD71815_INT_BAT_OVER_CURR_2_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_2_DET, 9,
+ BD71815_INT_BAT_OVER_CURR_2_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_3_RES, 9,
+ BD71815_INT_BAT_OVER_CURR_3_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_3_DET, 9,
+ BD71815_INT_BAT_OVER_CURR_3_DET_MASK),
+ /* Temperature */
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_LOW_RES, 10,
+ BD71815_INT_TEMP_BAT_LOW_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_LOW_DET, 10,
+ BD71815_INT_TEMP_BAT_LOW_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_HI_RES, 10,
+ BD71815_INT_TEMP_BAT_HI_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_HI_DET, 10,
+ BD71815_INT_TEMP_BAT_HI_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_125_RES, 10,
+ BD71815_INT_TEMP_CHIP_OVER_125_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_125_DET, 10,
+ BD71815_INT_TEMP_CHIP_OVER_125_DET_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_VF_RES, 10,
+ BD71815_INT_TEMP_CHIP_OVER_VF_RES_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_VF_DET, 10,
+ BD71815_INT_TEMP_CHIP_OVER_VF_DET_MASK),
+ /* RTC Alarm */
+ REGMAP_IRQ_REG(BD71815_INT_RTC0, 11, BD71815_INT_RTC0_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_RTC1, 11, BD71815_INT_RTC1_MASK),
+ REGMAP_IRQ_REG(BD71815_INT_RTC2, 11, BD71815_INT_RTC2_MASK),
+};
+
static struct regmap_irq bd71828_irqs[] = {
REGMAP_IRQ_REG(BD71828_INT_BUCK1_OCP, 0, BD71828_INT_BUCK1_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK2_OCP, 0, BD71828_INT_BUCK2_OCP_MASK),
@@ -267,57 +524,138 @@ static struct regmap_irq_chip bd71828_irq_chip = {
.init_ack_masked = true,
.num_regs = 12,
.num_main_regs = 1,
- .sub_reg_offsets = &bd71828_sub_irq_offsets[0],
+ .sub_reg_offsets = &bd718xx_sub_irq_offsets[0],
+ .num_main_status_bits = 8,
+ .irq_reg_stride = 1,
+};
+
+static struct regmap_irq_chip bd71815_irq_chip = {
+ .name = "bd71815_irq",
+ .main_status = BD71815_REG_INT_STAT,
+ .irqs = &bd71815_irqs[0],
+ .num_irqs = ARRAY_SIZE(bd71815_irqs),
+ .status_base = BD71815_REG_INT_STAT_01,
+ .mask_base = BD71815_REG_INT_EN_01,
+ .ack_base = BD71815_REG_INT_STAT_01,
+ .mask_invert = true,
+ .init_ack_masked = true,
+ .num_regs = 12,
+ .num_main_regs = 1,
+ .sub_reg_offsets = &bd718xx_sub_irq_offsets[0],
.num_main_status_bits = 8,
.irq_reg_stride = 1,
};
+static int set_clk_mode(struct device *dev, struct regmap *regmap,
+ int clkmode_reg)
+{
+ int ret;
+ const char *mode;
+
+ ret = of_property_read_string_index(dev->of_node, "rohm,clkout-mode", 0,
+ &mode);
+ if (ret) {
+ if (ret == -EINVAL)
+ return 0;
+ return ret;
+ }
+ if (!strncmp(mode, "open-drain", 10)) {
+ dev_dbg(dev, "configuring clk32kout as open-drain");
+ ret = regmap_update_bits(regmap, clkmode_reg, OUT32K_MODE,
+ OUT32K_MODE_OPEN_DRAIN);
+ } else if (!strncmp(mode, "cmos", 4)) {
+ dev_dbg(dev, "configuring clk32kout as cmos");
+ ret = regmap_update_bits(regmap, clkmode_reg, OUT32K_MODE,
+ OUT32K_MODE_CMOS);
+ } else {
+ dev_err(dev, "bad clk32kout mode configuration");
+ return -EINVAL;
+ }
+ return ret;
+}
+
static int bd71828_i2c_probe(struct i2c_client *i2c)
{
- struct rohm_regmap_dev *chip;
struct regmap_irq_chip_data *irq_data;
int ret;
+ struct regmap *regmap;
+ const struct regmap_config *regmap_config;
+ struct regmap_irq_chip *irqchip;
+ unsigned int chip_type;
+ struct mfd_cell *mfd;
+ int cells;
+ int button_irq;
+ int clkmode_reg;
if (!i2c->irq) {
dev_err(&i2c->dev, "No IRQ configured\n");
return -EINVAL;
}
- chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
-
- dev_set_drvdata(&i2c->dev, chip);
+ chip_type = (unsigned int)(uintptr_t)
+ of_device_get_match_data(&i2c->dev);
+ switch (chip_type) {
+ case ROHM_CHIP_TYPE_BD71828:
+ mfd = bd71828_mfd_cells;
+ cells = ARRAY_SIZE(bd71828_mfd_cells);
+ regmap_config = &bd71828_regmap;
+ irqchip = &bd71828_irq_chip;
+ clkmode_reg = BD71815_REG_OUT32K;
+ button_irq = BD71828_INT_SHORTPUSH;
+ dev_info(&i2c->dev, "BD71828 found\n");
+ break;
+ case ROHM_CHIP_TYPE_BD71815:
+ mfd = bd71815_mfd_cells;
+ cells = ARRAY_SIZE(bd71815_mfd_cells);
+ regmap_config = &bd71815_regmap;
+ irqchip = &bd71815_irq_chip;
+ clkmode_reg = BD71828_REG_OUT32K;
+ /*
+ * If BD71817 support is needed we should be able to handle it
+ * with proper DT configs + BD71815 drivers + power-button.
+ * BD71815 data-sheet does not list the power-button IRQ so we
+ * don't use it.
+ */
+ button_irq = 0;
+ dev_info(&i2c->dev, "BD71815 found\n");
+ break;
+ default:
+ dev_err(&i2c->dev, "Unknown device type");
+ return -EINVAL;
+ }
- chip->regmap = devm_regmap_init_i2c(i2c, &bd71828_regmap);
- if (IS_ERR(chip->regmap)) {
+ regmap = devm_regmap_init_i2c(i2c, regmap_config);
+ if (IS_ERR(regmap)) {
dev_err(&i2c->dev, "Failed to initialize Regmap\n");
- return PTR_ERR(chip->regmap);
+ return PTR_ERR(regmap);
}
- ret = devm_regmap_add_irq_chip(&i2c->dev, chip->regmap,
- i2c->irq, IRQF_ONESHOT, 0,
- &bd71828_irq_chip, &irq_data);
+ ret = devm_regmap_add_irq_chip(&i2c->dev, regmap, i2c->irq,
+ IRQF_ONESHOT, 0, irqchip, &irq_data);
if (ret) {
dev_err(&i2c->dev, "Failed to add IRQ chip\n");
return ret;
}
dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n",
- bd71828_irq_chip.num_irqs);
+ irqchip->num_irqs);
- ret = regmap_irq_get_virq(irq_data, BD71828_INT_SHORTPUSH);
- if (ret < 0) {
- dev_err(&i2c->dev, "Failed to get the power-key IRQ\n");
- return ret;
+ if (button_irq) {
+ ret = regmap_irq_get_virq(irq_data, button_irq);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to get the power-key IRQ\n");
+ return ret;
+ }
+
+ button.irq = ret;
}
- button.irq = ret;
+ ret = set_clk_mode(&i2c->dev, regmap, clkmode_reg);
+ if (ret)
+ return ret;
- ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
- bd71828_mfd_cells,
- ARRAY_SIZE(bd71828_mfd_cells), NULL, 0,
- regmap_irq_get_domain(irq_data));
+ ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, mfd, cells,
+ NULL, 0, regmap_irq_get_domain(irq_data));
if (ret)
dev_err(&i2c->dev, "Failed to create subdevices\n");
@@ -325,7 +663,13 @@ static int bd71828_i2c_probe(struct i2c_client *i2c)
}
static const struct of_device_id bd71828_of_match[] = {
- { .compatible = "rohm,bd71828", },
+ {
+ .compatible = "rohm,bd71828",
+ .data = (void *)ROHM_CHIP_TYPE_BD71828,
+ }, {
+ .compatible = "rohm,bd71815",
+ .data = (void *)ROHM_CHIP_TYPE_BD71815,
+ },
{ },
};
MODULE_DEVICE_TABLE(of, bd71828_of_match);
diff --git a/include/linux/mfd/rohm-bd71815.h b/include/linux/mfd/rohm-bd71815.h
new file mode 100644
index 000000000000..ae5b8a99de2d
--- /dev/null
+++ b/include/linux/mfd/rohm-bd71815.h
@@ -0,0 +1,584 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2014 Embest Technology Co. Ltd. Inc.
+ *
+ * Author: yanglsh@embest-tech.com
+ *
+ * 2020, 2021 Heavily modified by:
+ * Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
+ */
+
+#ifndef _MFD_BD71815_H
+#define _MFD_BD71815_H
+
+#include <linux/regmap.h>
+
+enum {
+ BD71815_BUCK1 = 0,
+ BD71815_BUCK2,
+ BD71815_BUCK3,
+ BD71815_BUCK4,
+ BD71815_BUCK5,
+ /* General Purpose */
+ BD71815_LDO1,
+ BD71815_LDO2,
+ BD71815_LDO3,
+ /* LDOs for SD Card and SD Card Interface */
+ BD71815_LDO4,
+ BD71815_LDO5,
+ /* LDO for DDR Reference Voltage */
+ BD71815_LDODVREF,
+ /* LDO for Low-Power State Retention */
+ BD71815_LDOLPSR,
+ BD71815_WLED,
+ BD71815_REGULATOR_CNT,
+};
+
+#define BD71815_SUPPLY_STATE_ENABLED 0x1
+
+enum {
+ BD71815_REG_DEVICE = 0,
+ BD71815_REG_PWRCTRL,
+ BD71815_REG_BUCK1_MODE,
+ BD71815_REG_BUCK2_MODE,
+ BD71815_REG_BUCK3_MODE,
+ BD71815_REG_BUCK4_MODE,
+ BD71815_REG_BUCK5_MODE,
+ BD71815_REG_BUCK1_VOLT_H,
+ BD71815_REG_BUCK1_VOLT_L,
+ BD71815_REG_BUCK2_VOLT_H,
+ BD71815_REG_BUCK2_VOLT_L,
+ BD71815_REG_BUCK3_VOLT,
+ BD71815_REG_BUCK4_VOLT,
+ BD71815_REG_BUCK5_VOLT,
+ BD71815_REG_LED_CTRL,
+ BD71815_REG_LED_DIMM,
+ BD71815_REG_LDO_MODE1,
+ BD71815_REG_LDO_MODE2,
+ BD71815_REG_LDO_MODE3,
+ BD71815_REG_LDO_MODE4,
+ BD71815_REG_LDO1_VOLT,
+ BD71815_REG_LDO2_VOLT,
+ BD71815_REG_LDO3_VOLT,
+ BD71815_REG_LDO4_VOLT,
+ BD71815_REG_LDO5_VOLT_H,
+ BD71815_REG_LDO5_VOLT_L,
+ BD71815_REG_BUCK_PD_DIS,
+ BD71815_REG_LDO_PD_DIS,
+ BD71815_REG_GPO,
+ BD71815_REG_OUT32K,
+ BD71815_REG_SEC,
+ BD71815_REG_MIN,
+ BD71815_REG_HOUR,
+ BD71815_REG_WEEK,
+ BD71815_REG_DAY,
+ BD71815_REG_MONTH,
+ BD71815_REG_YEAR,
+ BD71815_REG_ALM0_SEC,
+
+ BD71815_REG_ALM1_SEC = 0x2C,
+
+ BD71815_REG_ALM0_MASK = 0x33,
+ BD71815_REG_ALM1_MASK,
+ BD71815_REG_ALM2,
+ BD71815_REG_TRIM,
+ BD71815_REG_CONF,
+ BD71815_REG_SYS_INIT,
+ BD71815_REG_CHG_STATE,
+ BD71815_REG_CHG_LAST_STATE,
+ BD71815_REG_BAT_STAT,
+ BD71815_REG_DCIN_STAT,
+ BD71815_REG_VSYS_STAT,
+ BD71815_REG_CHG_STAT,
+ BD71815_REG_CHG_WDT_STAT,
+ BD71815_REG_BAT_TEMP,
+ BD71815_REG_IGNORE_0,
+ BD71815_REG_INHIBIT_0,
+ BD71815_REG_DCIN_CLPS,
+ BD71815_REG_VSYS_REG,
+ BD71815_REG_VSYS_MAX,
+ BD71815_REG_VSYS_MIN,
+ BD71815_REG_CHG_SET1,
+ BD71815_REG_CHG_SET2,
+ BD71815_REG_CHG_WDT_PRE,
+ BD71815_REG_CHG_WDT_FST,
+ BD71815_REG_CHG_IPRE,
+ BD71815_REG_CHG_IFST,
+ BD71815_REG_CHG_IFST_TERM,
+ BD71815_REG_CHG_VPRE,
+ BD71815_REG_CHG_VBAT_1,
+ BD71815_REG_CHG_VBAT_2,
+ BD71815_REG_CHG_VBAT_3,
+ BD71815_REG_CHG_LED_1,
+ BD71815_REG_VF_TH,
+ BD71815_REG_BAT_SET_1,
+ BD71815_REG_BAT_SET_2,
+ BD71815_REG_BAT_SET_3,
+ BD71815_REG_ALM_VBAT_TH_U,
+ BD71815_REG_ALM_VBAT_TH_L,
+ BD71815_REG_ALM_DCIN_TH,
+ BD71815_REG_ALM_VSYS_TH,
+ BD71815_REG_VM_IBAT_U,
+ BD71815_REG_VM_IBAT_L,
+ BD71815_REG_VM_VBAT_U,
+ BD71815_REG_VM_VBAT_L,
+ BD71815_REG_VM_BTMP,
+ BD71815_REG_VM_VTH,
+ BD71815_REG_VM_DCIN_U,
+ BD71815_REG_VM_DCIN_L,
+ BD71815_REG_VM_VSYS,
+ BD71815_REG_VM_VF,
+ BD71815_REG_VM_OCI_PRE_U,
+ BD71815_REG_VM_OCI_PRE_L,
+ BD71815_REG_VM_OCV_PRE_U,
+ BD71815_REG_VM_OCV_PRE_L,
+ BD71815_REG_VM_OCI_PST_U,
+ BD71815_REG_VM_OCI_PST_L,
+ BD71815_REG_VM_OCV_PST_U,
+ BD71815_REG_VM_OCV_PST_L,
+ BD71815_REG_VM_SA_VBAT_U,
+ BD71815_REG_VM_SA_VBAT_L,
+ BD71815_REG_VM_SA_IBAT_U,
+ BD71815_REG_VM_SA_IBAT_L,
+ BD71815_REG_CC_CTRL,
+ BD71815_REG_CC_BATCAP1_TH_U,
+ BD71815_REG_CC_BATCAP1_TH_L,
+ BD71815_REG_CC_BATCAP2_TH_U,
+ BD71815_REG_CC_BATCAP2_TH_L,
+ BD71815_REG_CC_BATCAP3_TH_U,
+ BD71815_REG_CC_BATCAP3_TH_L,
+ BD71815_REG_CC_STAT,
+ BD71815_REG_CC_CCNTD_3,
+ BD71815_REG_CC_CCNTD_2,
+ BD71815_REG_CC_CCNTD_1,
+ BD71815_REG_CC_CCNTD_0,
+ BD71815_REG_CC_CURCD_U,
+ BD71815_REG_CC_CURCD_L,
+ BD71815_REG_VM_OCUR_THR_1,
+ BD71815_REG_VM_OCUR_DUR_1,
+ BD71815_REG_VM_OCUR_THR_2,
+ BD71815_REG_VM_OCUR_DUR_2,
+ BD71815_REG_VM_OCUR_THR_3,
+ BD71815_REG_VM_OCUR_DUR_3,
+ BD71815_REG_VM_OCUR_MON,
+ BD71815_REG_VM_BTMP_OV_THR,
+ BD71815_REG_VM_BTMP_OV_DUR,
+ BD71815_REG_VM_BTMP_LO_THR,
+ BD71815_REG_VM_BTMP_LO_DUR,
+ BD71815_REG_VM_BTMP_MON,
+ BD71815_REG_INT_EN_01,
+
+ BD71815_REG_INT_EN_11 = 0x95,
+ BD71815_REG_INT_EN_12,
+ BD71815_REG_INT_STAT,
+ BD71815_REG_INT_STAT_01,
+ BD71815_REG_INT_STAT_02,
+ BD71815_REG_INT_STAT_03,
+ BD71815_REG_INT_STAT_04,
+ BD71815_REG_INT_STAT_05,
+ BD71815_REG_INT_STAT_06,
+ BD71815_REG_INT_STAT_07,
+ BD71815_REG_INT_STAT_08,
+ BD71815_REG_INT_STAT_09,
+ BD71815_REG_INT_STAT_10,
+ BD71815_REG_INT_STAT_11,
+ BD71815_REG_INT_STAT_12,
+ BD71815_REG_INT_UPDATE,
+
+ BD71815_REG_VM_VSYS_U = 0xC0,
+ BD71815_REG_VM_VSYS_L,
+ BD71815_REG_VM_SA_VSYS_U,
+ BD71815_REG_VM_SA_VSYS_L,
+
+ BD71815_REG_VM_SA_IBAT_MIN_U = 0xD0,
+ BD71815_REG_VM_SA_IBAT_MIN_L,
+ BD71815_REG_VM_SA_IBAT_MAX_U,
+ BD71815_REG_VM_SA_IBAT_MAX_L,
+ BD71815_REG_VM_SA_VBAT_MIN_U,
+ BD71815_REG_VM_SA_VBAT_MIN_L,
+ BD71815_REG_VM_SA_VBAT_MAX_U,
+ BD71815_REG_VM_SA_VBAT_MAX_L,
+ BD71815_REG_VM_SA_VSYS_MIN_U,
+ BD71815_REG_VM_SA_VSYS_MIN_L,
+ BD71815_REG_VM_SA_VSYS_MAX_U,
+ BD71815_REG_VM_SA_VSYS_MAX_L,
+ BD71815_REG_VM_SA_MINMAX_CLR,
+
+ BD71815_REG_REX_CCNTD_3 = 0xE0,
+ BD71815_REG_REX_CCNTD_2,
+ BD71815_REG_REX_CCNTD_1,
+ BD71815_REG_REX_CCNTD_0,
+ BD71815_REG_REX_SA_VBAT_U,
+ BD71815_REG_REX_SA_VBAT_L,
+ BD71815_REG_REX_CTRL_1,
+ BD71815_REG_REX_CTRL_2,
+ BD71815_REG_FULL_CCNTD_3,
+ BD71815_REG_FULL_CCNTD_2,
+ BD71815_REG_FULL_CCNTD_1,
+ BD71815_REG_FULL_CCNTD_0,
+ BD71815_REG_FULL_CTRL,
+
+ BD71815_REG_CCNTD_CHG_3 = 0xF0,
+ BD71815_REG_CCNTD_CHG_2,
+
+ BD71815_REG_TEST_MODE = 0xFE,
+ BD71815_MAX_REGISTER,
+};
+
+/* BD71815_REG_BUCK1_MODE bits */
+#define BD71815_BUCK_RAMPRATE_MASK 0xC0
+#define BD71815_BUCK_RAMPRATE_10P00MV 0x0
+#define BD71815_BUCK_RAMPRATE_5P00MV 0x01
+#define BD71815_BUCK_RAMPRATE_2P50MV 0x02
+#define BD71815_BUCK_RAMPRATE_1P25MV 0x03
+
+#define BD71815_BUCK_PWM_FIXED BIT(4)
+#define BD71815_BUCK_SNVS_ON BIT(3)
+#define BD71815_BUCK_RUN_ON BIT(2)
+#define BD71815_BUCK_LPSR_ON BIT(1)
+#define BD71815_BUCK_SUSP_ON BIT(0)
+
+/* BD71815_REG_BUCK1_VOLT_H bits */
+#define BD71815_BUCK_DVSSEL 0x80
+#define BD71815_BUCK_STBY_DVS 0x40
+#define BD71815_VOLT_MASK 0x3F
+#define BD71815_BUCK1_H_DEFAULT 0x14
+#define BD71815_BUCK1_L_DEFAULT 0x14
+
+/* BD71815_REG_BUCK2_VOLT_H bits */
+#define BD71815_BUCK2_H_DEFAULT 0x14
+#define BD71815_BUCK2_L_DEFAULT 0x14
+
+/* WLED output */
+/* current register mask */
+#define LED_DIMM_MASK 0x3f
+/* LED enable bits at LED_CTRL reg */
+#define LED_CHGDONE_EN BIT(4)
+#define LED_RUN_ON BIT(2)
+#define LED_LPSR_ON BIT(1)
+#define LED_SUSP_ON BIT(0)
+
+/* BD71815_REG_LDO1_CTRL bits */
+#define LDO1_EN 0x01
+#define LDO2_EN 0x02
+#define LDO3_EN 0x04
+#define DVREF_EN 0x08
+#define VOSNVS_SW_EN 0x10
+
+/* LDO_MODE1_register */
+#define LDO1_SNVS_ON BIT(7)
+#define LDO1_RUN_ON BIT(6)
+#define LDO1_LPSR_ON BIT(5)
+#define LDO1_SUSP_ON BIT(4)
+/* set => register control, unset => GPIO control */
+#define LDO4_MODE_MASK BIT(3)
+#define LDO4_MODE_I2C BIT(3)
+#define LDO4_MODE_GPIO 0
+/* set => register control, unset => start when DCIN connected */
+#define LDO3_MODE_MASK BIT(2)
+#define LDO3_MODE_I2C BIT(2)
+#define LDO3_MODE_DCIN 0
+
+/* LDO_MODE2 register */
+#define LDO3_SNVS_ON BIT(7)
+#define LDO3_RUN_ON BIT(6)
+#define LDO3_LPSR_ON BIT(5)
+#define LDO3_SUSP_ON BIT(4)
+#define LDO2_SNVS_ON BIT(3)
+#define LDO2_RUN_ON BIT(2)
+#define LDO2_LPSR_ON BIT(1)
+#define LDO2_SUSP_ON BIT(0)
+
+
+/* LDO_MODE3 register */
+#define LDO5_SNVS_ON BIT(7)
+#define LDO5_RUN_ON BIT(6)
+#define LDO5_LPSR_ON BIT(5)
+#define LDO5_SUSP_ON BIT(4)
+#define LDO4_SNVS_ON BIT(3)
+#define LDO4_RUN_ON BIT(2)
+#define LDO4_LPSR_ON BIT(1)
+#define LDO4_SUSP_ON BIT(0)
+
+/* LDO_MODE4 register */
+#define DVREF_SNVS_ON BIT(7)
+#define DVREF_RUN_ON BIT(6)
+#define DVREF_LPSR_ON BIT(5)
+#define DVREF_SUSP_ON BIT(4)
+#define LDO_LPSR_SNVS_ON BIT(3)
+#define LDO_LPSR_RUN_ON BIT(2)
+#define LDO_LPSR_LPSR_ON BIT(1)
+#define LDO_LPSR_SUSP_ON BIT(0)
+
+/* BD71815_REG_OUT32K bits */
+#define OUT32K_EN BIT(0)
+#define OUT32K_MODE BIT(1)
+#define OUT32K_MODE_CMOS BIT(1)
+#define OUT32K_MODE_OPEN_DRAIN 0
+
+/* BD71815_REG_BAT_STAT bits */
+#define BAT_DET 0x20
+#define BAT_DET_OFFSET 5
+#define BAT_DET_DONE 0x10
+#define VBAT_OV 0x08
+#define DBAT_DET 0x01
+
+/* BD71815_REG_VBUS_STAT bits */
+#define VBUS_DET 0x01
+
+#define BD71815_REG_RTC_START BD71815_REG_SEC
+#define BD71815_REG_RTC_ALM_START BD71815_REG_ALM0_SEC
+
+/* BD71815_REG_ALM0_MASK bits */
+#define A0_ONESEC 0x80
+
+/* BD71815_REG_INT_EN_00 bits */
+#define ALMALE 0x1
+
+/* BD71815_REG_INT_STAT_03 bits */
+#define DCIN_MON_DET 0x02
+#define DCIN_MON_RES 0x01
+#define POWERON_LONG 0x04
+#define POWERON_MID 0x08
+#define POWERON_SHORT 0x10
+#define POWERON_PRESS 0x20
+
+
+/* BD71805_REG_INT_STAT_08 bits */
+#define VBAT_MON_DET 0x02
+#define VBAT_MON_RES 0x01
+
+/* BD71805_REG_INT_STAT_11 bits */
+#define INT_STAT_11_VF_DET 0x80
+#define INT_STAT_11_VF_RES 0x40
+#define INT_STAT_11_VF125_DET 0x20
+#define INT_STAT_11_VF125_RES 0x10
+#define INT_STAT_11_OVTMP_DET 0x08
+#define INT_STAT_11_OVTMP_RES 0x04
+#define INT_STAT_11_LOTMP_DET 0x02
+#define INT_STAT_11_LOTMP_RES 0x01
+
+#define VBAT_MON_DET 0x02
+#define VBAT_MON_RES 0x01
+
+/* BD71815_REG_PWRCTRL bits */
+#define RESTARTEN 0x01
+
+/* BD71815_REG_GPO bits */
+#define READY_FORCE_LOW BIT(2)
+#define BD71815_GPIO_DRIVE_MASK BIT(4)
+#define BD71815_GPIO_OPEN_DRAIN 0
+#define BD71815_GPIO_CMOS BIT(4)
+
+/* BD71815_REG_CHG_SET1 bits */
+#define CHG_EN BIT(0)
+
+/* BD71815 interrupt masks */
+enum {
+ BD71815_INT_EN_01_BUCKAST_MASK = 0x0F,
+ BD71815_INT_EN_02_DCINAST_MASK = 0x3E,
+ BD71815_INT_EN_03_DCINAST_MASK = 0x3F,
+ BD71815_INT_EN_04_VSYSAST_MASK = 0xCF,
+ BD71815_INT_EN_05_CHGAST_MASK = 0xFC,
+ BD71815_INT_EN_06_BATAST_MASK = 0xF3,
+ BD71815_INT_EN_07_BMONAST_MASK = 0xFE,
+ BD71815_INT_EN_08_BMONAST_MASK = 0x03,
+ BD71815_INT_EN_09_BMONAST_MASK = 0x07,
+ BD71815_INT_EN_10_BMONAST_MASK = 0x3F,
+ BD71815_INT_EN_11_TMPAST_MASK = 0xFF,
+ BD71815_INT_EN_12_ALMAST_MASK = 0x07,
+};
+/* BD71815 interrupt irqs */
+enum {
+ /* BUCK reg interrupts */
+ BD71815_INT_BUCK1_OCP,
+ BD71815_INT_BUCK2_OCP,
+ BD71815_INT_BUCK3_OCP,
+ BD71815_INT_BUCK4_OCP,
+ BD71815_INT_BUCK5_OCP,
+ BD71815_INT_LED_OVP,
+ BD71815_INT_LED_OCP,
+ BD71815_INT_LED_SCP,
+ /* DCIN1 interrupts */
+ BD71815_INT_DCIN_RMV,
+ BD71815_INT_CLPS_OUT,
+ BD71815_INT_CLPS_IN,
+ BD71815_INT_DCIN_OVP_RES,
+ BD71815_INT_DCIN_OVP_DET,
+ /* DCIN2 interrupts */
+ BD71815_INT_DCIN_MON_RES,
+ BD71815_INT_DCIN_MON_DET,
+ BD71815_INT_WDOG,
+ /* Vsys INT_STAT_04 */
+ BD71815_INT_VSYS_UV_RES,
+ BD71815_INT_VSYS_UV_DET,
+ BD71815_INT_VSYS_LOW_RES,
+ BD71815_INT_VSYS_LOW_DET,
+ BD71815_INT_VSYS_MON_RES,
+ BD71815_INT_VSYS_MON_DET,
+ /* Charger INT_STAT_05 */
+ BD71815_INT_CHG_WDG_TEMP,
+ BD71815_INT_CHG_WDG_TIME,
+ BD71815_INT_CHG_RECHARGE_RES,
+ BD71815_INT_CHG_RECHARGE_DET,
+ BD71815_INT_CHG_RANGED_TEMP_TRANSITION,
+ BD71815_INT_CHG_STATE_TRANSITION,
+ /* Battery INT_STAT_06 */
+ BD71815_INT_BAT_TEMP_NORMAL,
+ BD71815_INT_BAT_TEMP_ERANGE,
+ BD71815_INT_BAT_REMOVED,
+ BD71815_INT_BAT_DETECTED,
+ BD71815_INT_THERM_REMOVED,
+ BD71815_INT_THERM_DETECTED,
+ /* Battery Mon 1 INT_STAT_07 */
+ BD71815_INT_BAT_DEAD,
+ BD71815_INT_BAT_SHORTC_RES,
+ BD71815_INT_BAT_SHORTC_DET,
+ BD71815_INT_BAT_LOW_VOLT_RES,
+ BD71815_INT_BAT_LOW_VOLT_DET,
+ BD71815_INT_BAT_OVER_VOLT_RES,
+ BD71815_INT_BAT_OVER_VOLT_DET,
+ /* Battery Mon 2 INT_STAT_08 */
+ BD71815_INT_BAT_MON_RES,
+ BD71815_INT_BAT_MON_DET,
+ /* Battery Mon 3 (Coulomb counter) INT_STAT_09 */
+ BD71815_INT_BAT_CC_MON1,
+ BD71815_INT_BAT_CC_MON2,
+ BD71815_INT_BAT_CC_MON3,
+ /* Battery Mon 4 INT_STAT_10 */
+ BD71815_INT_BAT_OVER_CURR_1_RES,
+ BD71815_INT_BAT_OVER_CURR_1_DET,
+ BD71815_INT_BAT_OVER_CURR_2_RES,
+ BD71815_INT_BAT_OVER_CURR_2_DET,
+ BD71815_INT_BAT_OVER_CURR_3_RES,
+ BD71815_INT_BAT_OVER_CURR_3_DET,
+ /* Temperature INT_STAT_11 */
+ BD71815_INT_TEMP_BAT_LOW_RES,
+ BD71815_INT_TEMP_BAT_LOW_DET,
+ BD71815_INT_TEMP_BAT_HI_RES,
+ BD71815_INT_TEMP_BAT_HI_DET,
+ BD71815_INT_TEMP_CHIP_OVER_125_RES,
+ BD71815_INT_TEMP_CHIP_OVER_125_DET,
+ BD71815_INT_TEMP_CHIP_OVER_VF_RES,
+ BD71815_INT_TEMP_CHIP_OVER_VF_DET,
+ /* RTC Alarm INT_STAT_12 */
+ BD71815_INT_RTC0,
+ BD71815_INT_RTC1,
+ BD71815_INT_RTC2,
+};
+
+#define BD71815_INT_BUCK1_OCP_MASK BIT(0)
+#define BD71815_INT_BUCK2_OCP_MASK BIT(1)
+#define BD71815_INT_BUCK3_OCP_MASK BIT(2)
+#define BD71815_INT_BUCK4_OCP_MASK BIT(3)
+#define BD71815_INT_BUCK5_OCP_MASK BIT(4)
+#define BD71815_INT_LED_OVP_MASK BIT(5)
+#define BD71815_INT_LED_OCP_MASK BIT(6)
+#define BD71815_INT_LED_SCP_MASK BIT(7)
+
+#define BD71815_INT_DCIN_RMV_MASK BIT(1)
+#define BD71815_INT_CLPS_OUT_MASK BIT(2)
+#define BD71815_INT_CLPS_IN_MASK BIT(3)
+#define BD71815_INT_DCIN_OVP_RES_MASK BIT(4)
+#define BD71815_INT_DCIN_OVP_DET_MASK BIT(5)
+
+#define BD71815_INT_DCIN_MON_RES_MASK BIT(0)
+#define BD71815_INT_DCIN_MON_DET_MASK BIT(1)
+#define BD71815_INT_WDOG_MASK BIT(6)
+
+#define BD71815_INT_VSYS_UV_RES_MASK BIT(0)
+#define BD71815_INT_VSYS_UV_DET_MASK BIT(1)
+#define BD71815_INT_VSYS_LOW_RES_MASK BIT(2)
+#define BD71815_INT_VSYS_LOW_DET_MASK BIT(3)
+#define BD71815_INT_VSYS_MON_RES_MASK BIT(6)
+#define BD71815_INT_VSYS_MON_DET_MASK BIT(7)
+
+#define BD71815_INT_CHG_WDG_TEMP_MASK BIT(2)
+#define BD71815_INT_CHG_WDG_TIME_MASK BIT(3)
+#define BD71815_INT_CHG_RECHARGE_RES_MASK BIT(4)
+#define BD71815_INT_CHG_RECHARGE_DET_MASK BIT(5)
+#define BD71815_INT_CHG_RANGED_TEMP_TRANSITION_MASK BIT(6)
+#define BD71815_INT_CHG_STATE_TRANSITION_MASK BIT(7)
+
+#define BD71815_INT_BAT_TEMP_NORMAL_MASK BIT(0)
+#define BD71815_INT_BAT_TEMP_ERANGE_MASK BIT(1)
+#define BD71815_INT_BAT_REMOVED_MASK BIT(4)
+#define BD71815_INT_BAT_DETECTED_MASK BIT(5)
+#define BD71815_INT_THERM_REMOVED_MASK BIT(6)
+#define BD71815_INT_THERM_DETECTED_MASK BIT(7)
+
+#define BD71815_INT_BAT_DEAD_MASK BIT(1)
+#define BD71815_INT_BAT_SHORTC_RES_MASK BIT(2)
+#define BD71815_INT_BAT_SHORTC_DET_MASK BIT(3)
+#define BD71815_INT_BAT_LOW_VOLT_RES_MASK BIT(4)
+#define BD71815_INT_BAT_LOW_VOLT_DET_MASK BIT(5)
+#define BD71815_INT_BAT_OVER_VOLT_RES_MASK BIT(6)
+#define BD71815_INT_BAT_OVER_VOLT_DET_MASK BIT(7)
+
+#define BD71815_INT_BAT_MON_RES_MASK BIT(0)
+#define BD71815_INT_BAT_MON_DET_MASK BIT(1)
+
+#define BD71815_INT_BAT_CC_MON1_MASK BIT(0)
+#define BD71815_INT_BAT_CC_MON2_MASK BIT(1)
+#define BD71815_INT_BAT_CC_MON3_MASK BIT(2)
+
+#define BD71815_INT_BAT_OVER_CURR_1_RES_MASK BIT(0)
+#define BD71815_INT_BAT_OVER_CURR_1_DET_MASK BIT(1)
+#define BD71815_INT_BAT_OVER_CURR_2_RES_MASK BIT(2)
+#define BD71815_INT_BAT_OVER_CURR_2_DET_MASK BIT(3)
+#define BD71815_INT_BAT_OVER_CURR_3_RES_MASK BIT(4)
+#define BD71815_INT_BAT_OVER_CURR_3_DET_MASK BIT(5)
+
+#define BD71815_INT_TEMP_BAT_LOW_RES_MASK BIT(0)
+#define BD71815_INT_TEMP_BAT_LOW_DET_MASK BIT(1)
+#define BD71815_INT_TEMP_BAT_HI_RES_MASK BIT(2)
+#define BD71815_INT_TEMP_BAT_HI_DET_MASK BIT(3)
+#define BD71815_INT_TEMP_CHIP_OVER_125_RES_MASK BIT(4)
+#define BD71815_INT_TEMP_CHIP_OVER_125_DET_MASK BIT(5)
+#define BD71815_INT_TEMP_CHIP_OVER_VF_RES_MASK BIT(6)
+#define BD71815_INT_TEMP_CHIP_OVER_VF_DET_MASK BIT(7)
+
+#define BD71815_INT_RTC0_MASK BIT(0)
+#define BD71815_INT_RTC1_MASK BIT(1)
+#define BD71815_INT_RTC2_MASK BIT(2)
+
+/* BD71815_REG_CC_CTRL bits */
+#define CCNTRST 0x80
+#define CCNTENB 0x40
+#define CCCALIB 0x20
+
+/* BD71815_REG_CHG_SET1 bits */
+#define WDT_AUTO 0x40
+
+/* BD71815_REG_CC_CURCD */
+#define CURDIR_Discharging 0x8000
+
+/* BD71815_REG_VM_SA_IBAT */
+#define IBAT_SA_DIR_Discharging 0x8000
+
+/* BD71815_REG_VM_SA_MINMAX_CLR bits */
+#define VSYS_SA_MIN_CLR 0x10
+#define VBAT_SA_MIN_CLR 0x01
+
+/* BD71815_REG_REX_CTRL_1 bits */
+#define REX_CLR 0x10
+
+/* BD71815_REG_REX_CTRL_1 bits */
+#define REX_PMU_STATE_MASK 0x04
+
+/* BD71815_REG_FULL_CTRL bits */
+#define FULL_CLR 0x10
+
+/* BD71815_REG_LED_CTRL bits */
+#define CHGDONE_LED_EN 0x10
+
+enum CHG_STATE {
+ CHG_STATE_SUSPEND = 0x0, /**< suspend state */
+ CHG_STATE_TRICKLE_CHARGE, /**< trickle charge state */
+ CHG_STATE_PRE_CHARGE, /**< precharge state */
+ CHG_STATE_FAST_CHARGE, /**< fast charge state */
+ CHG_STATE_TOP_OFF, /**< top off state */
+ CHG_STATE_DONE, /**< charge complete */
+};
+
+#endif /* __LINUX_MFD_BD71815_H */
diff --git a/include/linux/mfd/rohm-bd71828.h b/include/linux/mfd/rohm-bd71828.h
index 017a4c01cb31..c7ab69c87ee8 100644
--- a/include/linux/mfd/rohm-bd71828.h
+++ b/include/linux/mfd/rohm-bd71828.h
@@ -151,6 +151,9 @@ enum {
#define BD71828_REG_GPIO_CTRL3 0x49
#define BD71828_REG_IO_STAT 0xed
+/* clk */
+#define BD71828_REG_OUT32K 0x4b
+
/* RTC */
#define BD71828_REG_RTC_SEC 0x4c
#define BD71828_REG_RTC_MINUTE 0x4d
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 09/15] gpio: support ROHM BD71815 GPOs
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (7 preceding siblings ...)
2021-01-08 13:37 ` [PATCH 08/15] mfd: Support for ROHM BD71815 PMIC core Matti Vaittinen
@ 2021-01-08 13:39 ` Matti Vaittinen
2021-01-08 19:28 ` kernel test robot
2021-01-09 0:45 ` Linus Walleij
2021-01-08 13:41 ` [PATCH 10/15] regulator: helpers: Export helper voltage listing Matti Vaittinen
` (5 subsequent siblings)
14 siblings, 2 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:39 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Matti Vaittinen, Linus Walleij, Bartosz Golaszewski,
linux-kernel, linux-power, linux-gpio
Support GPO(s) found from ROHM BD71815 power management IC. The IC has two
GPO pins but only one is properly documented in data-sheet. The driver
exposes by default only the documented GPO. The second GPO is connected to
E5 pin and is marked as GND in data-sheet. Control for this undocumented
pin can be enabled using a special DT property.
This driver is derived from work by Peter Yang <yanglsh@embest-tech.com>
although not so much of original is left.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/gpio/Kconfig | 10 +++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-bd71815.c | 160 ++++++++++++++++++++++++++++++++++++
3 files changed, 171 insertions(+)
create mode 100644 drivers/gpio/gpio-bd71815.c
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 5d4de5cd6759..14a169c3232e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1072,6 +1072,16 @@ config GPIO_BD70528
This driver can also be built as a module. If so, the module
will be called gpio-bd70528.
+config GPIO_BD71815
+ tristate "ROHM BD71815 PMIC GPIO support"
+ depends on MFD_ROHM_BD71828
+ help
+ Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
+ available on the ROHM PMIC.
+
+ This driver can also be built as a module. If so, the module
+ will be called gpio-bd71815.
+
config GPIO_BD71828
tristate "ROHM BD71828 GPIO support"
depends on MFD_ROHM_BD71828
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 09dada80ac34..87ae0762eafa 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o
obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o
obj-$(CONFIG_GPIO_BCM_XGS_IPROC) += gpio-xgs-iproc.o
obj-$(CONFIG_GPIO_BD70528) += gpio-bd70528.o
+obj-$(CONFIG_GPIO_BD71815) += gpio-bd71815.o
obj-$(CONFIG_GPIO_BD71828) += gpio-bd71828.o
obj-$(CONFIG_GPIO_BD9571MWV) += gpio-bd9571mwv.o
obj-$(CONFIG_GPIO_BRCMSTB) += gpio-brcmstb.o
diff --git a/drivers/gpio/gpio-bd71815.c b/drivers/gpio/gpio-bd71815.c
new file mode 100644
index 000000000000..5beac32fd07b
--- /dev/null
+++ b/drivers/gpio/gpio-bd71815.c
@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Support to GPOs on ROHM BD71815
+ */
+#define DEBUG
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kthread.h>
+#include <linux/irq.h>
+#include <linux/gpio/driver.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/mfd/rohm-bd71815.h>
+#include <linux/mfd/rohm-generic.h>
+
+struct bd71815_gpio {
+ struct gpio_chip chip;
+ struct device *dev;
+ struct regmap *regmap;
+ /*
+ * Sigh. The BD71815 and BD71817 were originally designed to support two
+ * GPO pins. At some point it was noticed the second GPO pin which is
+ * the E5 pin located at the center of IC is hard to use on PCB (due to
+ * the location). It was decided to not promote this second GPO and pin
+ * is marked as GND on the data-sheet. The functionality is still there
+ * though! I guess driving GPO connected to ground is a bad idea. Thus
+ * we do not support it by default. OTOH - the original driver written
+ * by colleagues at Embest did support controlling this second GPO. It
+ * is thus possible this is used in some of the products.
+ *
+ * This driver does not by default support configuring this second GPO
+ * but allows using it by providing the DT property
+ * "rohm,enable-hidden-gpo".
+ */
+ bool e5_pin_is_gpo;
+};
+
+static int bd71815gpo_get(struct gpio_chip *chip, unsigned int offset)
+{
+ struct bd71815_gpio *bd71815 = gpiochip_get_data(chip);
+ int ret = 0;
+ int val;
+
+ ret = regmap_read(bd71815->regmap, BD71815_REG_GPO, &val);
+ if (ret)
+ return ret;
+
+ return (val >> offset) & 1;
+}
+
+static void bd71815gpo_set(struct gpio_chip *chip, unsigned int offset,
+ int value)
+{
+ struct bd71815_gpio *bd71815 = gpiochip_get_data(chip);
+ int ret, val, mask;
+
+ if (!bd71815->e5_pin_is_gpo && offset)
+ return;
+
+ mask = BIT(offset);
+ val = value ? mask : 0;
+ ret = regmap_update_bits(bd71815->regmap, BD71815_REG_GPO, mask, val);
+ if (ret)
+ dev_warn(bd71815->dev, "failed to toggle GPO\n");
+}
+
+static int bd71815_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
+{
+ struct bd71815_gpio *bdgpio = gpiochip_get_data(chip);
+
+ if (!bdgpio->e5_pin_is_gpo && offset)
+ return -EOPNOTSUPP;
+
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ return regmap_update_bits(bdgpio->regmap,
+ BD71815_REG_GPO,
+ BD71815_GPIO_DRIVE_MASK << offset,
+ BD71815_GPIO_OPEN_DRAIN << offset);
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ return regmap_update_bits(bdgpio->regmap,
+ BD71815_REG_GPO,
+ BD71815_GPIO_DRIVE_MASK << offset,
+ BD71815_GPIO_CMOS << offset);
+ default:
+ break;
+ }
+ return -EOPNOTSUPP;
+}
+
+/* BD71815 GPIO is actually GPO */
+static int bd71815gpo_direction_get(struct gpio_chip *gc, unsigned int offset)
+{
+ return GPIO_LINE_DIRECTION_OUT;
+}
+
+/* Template for GPIO chip */
+static struct gpio_chip bd71815gpo_chip = {
+ .label = "bd71815",
+ .owner = THIS_MODULE,
+ .get = bd71815gpo_get,
+ .get_direction = bd71815gpo_direction_get,
+ .set = bd71815gpo_set,
+ .set_config = bd71815_gpio_set_config,
+ .can_sleep = 1,
+};
+
+static int gpo_bd71815_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct bd71815_gpio *g;
+
+ g = devm_kzalloc(&pdev->dev, sizeof(*g), GFP_KERNEL);
+ if (!g)
+ return -ENOMEM;
+
+ g->e5_pin_is_gpo = of_property_read_bool(pdev->dev.parent->of_node,
+ "rohm,enable-hidden-gpo");
+ g->chip = bd71815gpo_chip;
+ g->chip.base = -1;
+ g->chip.ngpio = 1;
+ if (g->e5_pin_is_gpo)
+ g->chip.ngpio = 2;
+ g->chip.parent = pdev->dev.parent;
+ g->chip.of_node = pdev->dev.parent->of_node;
+ g->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ g->dev = &pdev->dev;
+
+ ret = devm_gpiochip_add_data(&pdev->dev, &g->chip, g);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+static const struct platform_device_id bd7181x_gpo_id[] = {
+ { "bd71815-gpo", ROHM_CHIP_TYPE_BD71815 },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, bd7181x_gpo_id);
+
+static struct platform_driver gpo_bd71815_driver = {
+ .driver = {
+ .name = "bd71815-gpo",
+ .owner = THIS_MODULE,
+ },
+ .probe = gpo_bd71815_probe,
+ .id_table = bd7181x_gpo_id,
+};
+
+module_platform_driver(gpo_bd71815_driver);
+
+/* Note: this hardware lives inside an I2C-based multi-function device. */
+MODULE_ALIAS("platform:bd71815-gpo");
+
+MODULE_AUTHOR("Peter Yang <yanglsh@embest-tech.com>");
+MODULE_DESCRIPTION("GPO interface for BD71815");
+MODULE_LICENSE("GPL");
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 10/15] regulator: helpers: Export helper voltage listing
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (8 preceding siblings ...)
2021-01-08 13:39 ` [PATCH 09/15] gpio: support ROHM BD71815 GPOs Matti Vaittinen
@ 2021-01-08 13:41 ` Matti Vaittinen
2021-01-08 13:42 ` [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support Matti Vaittinen
` (4 subsequent siblings)
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:41 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Liam Girdwood, Mark Brown, Matti Vaittinen,
linux-kernel, linux-power
Some drivers need to translate voltage values to selectors prior regulator
registration. Currently a regulator_desc based list_voltages helper is only
exported for regulators using the linear_ranges. Export similar helper also
for regulators using simple linear mapping.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/regulator/helpers.c | 36 +++++++++++++++++++++++++-------
include/linux/regulator/driver.h | 2 ++
2 files changed, 30 insertions(+), 8 deletions(-)
diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c
index e4bb09bbd3fa..3cd0babac8a3 100644
--- a/drivers/regulator/helpers.c
+++ b/drivers/regulator/helpers.c
@@ -508,6 +508,33 @@ int regulator_map_voltage_pickable_linear_range(struct regulator_dev *rdev,
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_pickable_linear_range);
+/**
+ * regulator_desc_list_voltage_linear - List voltages with simple calculation
+ *
+ * @desc: Regulator desc for regulator which volatges are to be listed
+ * @selector: Selector to convert into a voltage
+ *
+ * Regulators with a simple linear mapping between voltages and
+ * selectors can set min_uV and uV_step in the regulator descriptor
+ * and then use this function prior regulator registration to list
+ * the voltages. This is useful when voltages need to be listed during
+ * device-tree parsing.
+ */
+int regulator_desc_list_voltage_linear(const struct regulator_desc *desc,
+ unsigned int selector)
+{
+ if (selector >= desc->n_voltages)
+ return -EINVAL;
+
+ if (selector < desc->linear_min_sel)
+ return 0;
+
+ selector -= desc->linear_min_sel;
+
+ return desc->min_uV + (desc->uV_step * selector);
+}
+EXPORT_SYMBOL_GPL(regulator_desc_list_voltage_linear);
+
/**
* regulator_list_voltage_linear - List voltages with simple calculation
*
@@ -521,14 +548,7 @@ EXPORT_SYMBOL_GPL(regulator_map_voltage_pickable_linear_range);
int regulator_list_voltage_linear(struct regulator_dev *rdev,
unsigned int selector)
{
- if (selector >= rdev->desc->n_voltages)
- return -EINVAL;
- if (selector < rdev->desc->linear_min_sel)
- return 0;
-
- selector -= rdev->desc->linear_min_sel;
-
- return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
+ return regulator_desc_list_voltage_linear(rdev->desc, selector);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear);
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 11cade73726c..05a8e0bb924a 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -540,4 +540,6 @@ void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data);
int regulator_desc_list_voltage_linear_range(const struct regulator_desc *desc,
unsigned int selector);
+int regulator_desc_list_voltage_linear(const struct regulator_desc *desc,
+ unsigned int selector);
#endif
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (9 preceding siblings ...)
2021-01-08 13:41 ` [PATCH 10/15] regulator: helpers: Export helper voltage listing Matti Vaittinen
@ 2021-01-08 13:42 ` Matti Vaittinen
2021-01-15 8:26 ` Lee Jones
2021-01-08 13:43 ` [PATCH 12/15] regulator: Support ROHM BD71815 regulators Matti Vaittinen
` (3 subsequent siblings)
14 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:42 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Liam Girdwood, Mark Brown, Matti Vaittinen,
linux-kernel, linux-power
The helper for obtaining HW-state based DVS voltage levels currently only
works for regulators using linear-ranges. Extend support to regulators with
simple linear mappings and add also proper error path if pickable-ranges
regulators call this.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/regulator/rohm-regulator.c | 23 +++++++++++++++++++++--
include/linux/mfd/rohm-generic.h | 6 +++++-
2 files changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/regulator/rohm-regulator.c b/drivers/regulator/rohm-regulator.c
index 399002383b28..9248bd63afa9 100644
--- a/drivers/regulator/rohm-regulator.c
+++ b/drivers/regulator/rohm-regulator.c
@@ -22,13 +22,26 @@ static int set_dvs_level(const struct regulator_desc *desc,
return ret;
return 0;
}
-
+ /* If voltage is set to 0 => disable */
if (uv == 0) {
if (omask)
return regmap_update_bits(regmap, oreg, omask, 0);
}
+ /* Some setups don't allow setting own voltage but do allow enabling */
+ if (!mask) {
+ if (omask)
+ return regmap_update_bits(regmap, oreg, omask, omask);
+
+ return -EINVAL;
+ }
for (i = 0; i < desc->n_voltages; i++) {
- ret = regulator_desc_list_voltage_linear_range(desc, i);
+ /* NOTE to next hacker - Does not support pickable ranges */
+ if (desc->linear_range_selectors)
+ return -EINVAL;
+ if (desc->n_linear_ranges)
+ ret = regulator_desc_list_voltage_linear_range(desc, i);
+ else
+ ret = regulator_desc_list_voltage_linear(desc, i);
if (ret < 0)
continue;
if (ret == uv) {
@@ -79,6 +92,12 @@ int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
mask = dvs->lpsr_mask;
omask = dvs->lpsr_on_mask;
break;
+ case ROHM_DVS_LEVEL_SNVS:
+ prop = "rohm,dvs-snvs-voltage";
+ reg = dvs->snvs_reg;
+ mask = dvs->snvs_mask;
+ omask = dvs->snvs_on_mask;
+ break;
default:
return -EINVAL;
}
diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
index e99e569d3cc1..2f5fbfd0c6b3 100644
--- a/include/linux/mfd/rohm-generic.h
+++ b/include/linux/mfd/rohm-generic.h
@@ -27,7 +27,8 @@ enum {
ROHM_DVS_LEVEL_IDLE,
ROHM_DVS_LEVEL_SUSPEND,
ROHM_DVS_LEVEL_LPSR,
- ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_LPSR,
+ ROHM_DVS_LEVEL_SNVS,
+ ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS,
};
/**
@@ -66,6 +67,9 @@ struct rohm_dvs_config {
unsigned int lpsr_reg;
unsigned int lpsr_mask;
unsigned int lpsr_on_mask;
+ unsigned int snvs_reg;
+ unsigned int snvs_mask;
+ unsigned int snvs_on_mask;
};
#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 12/15] regulator: Support ROHM BD71815 regulators
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (10 preceding siblings ...)
2021-01-08 13:42 ` [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support Matti Vaittinen
@ 2021-01-08 13:43 ` Matti Vaittinen
2021-01-08 22:30 ` kernel test robot
2021-01-08 13:45 ` [PATCH 13/15] clk: bd718x7: Add support for clk gate on ROHM BD71815 PMIC Matti Vaittinen
` (2 subsequent siblings)
14 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:43 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Liam Girdwood, Mark Brown, Matti Vaittinen,
linux-kernel, linux-power
Support voltage control for regulators on ROHM BD71815 PMIC.
ROHM BD71815 contains 5 bucks, 7 LDOs and a boost (intended for LED).
Bucks 1 and 2 support HW state based voltage level and enable states. Other
regulators support HW state based enable states. All bucks and LDOs 1-5
allow voltage changes for RUN state and LDO4 can be enabled/disabled via
GPIO.
LDO3 does support changing between two predetermined voltages by using
a GPIO but this functionality is not included in this commit.
This work is derived from driver originally written by Tony Luo
<luofc@embedinfo.com> - although not much of original work is left.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/regulator/Kconfig | 11 +
drivers/regulator/Makefile | 1 +
drivers/regulator/bd71815-regulator.c | 675 ++++++++++++++++++++++++++
3 files changed, 687 insertions(+)
create mode 100644 drivers/regulator/bd71815-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 020a00d6696b..b2426f30f9fd 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -196,6 +196,17 @@ config REGULATOR_BD70528
This driver can also be built as a module. If so, the module
will be called bd70528-regulator.
+config REGULATOR_BD71815
+ tristate "ROHM BD71815 Power Regulator"
+ depends on MFD_ROHM_BD71828
+ help
+ This driver supports voltage regulators on ROHM BD71815 PMIC.
+ This will enable support for the software controllable buck
+ and LDO regulators and a current regulator for LEDs.
+
+ This driver can also be built as a module. If so, the module
+ will be called bd71815-regulator.
+
config REGULATOR_BD71828
tristate "ROHM BD71828 Power Regulator"
depends on MFD_ROHM_BD71828
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 6ebae516258e..6223c73a8000 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_REGULATOR_AS3722) += as3722-regulator.o
obj-$(CONFIG_REGULATOR_AXP20X) += axp20x-regulator.o
obj-$(CONFIG_REGULATOR_BCM590XX) += bcm590xx-regulator.o
obj-$(CONFIG_REGULATOR_BD70528) += bd70528-regulator.o
+obj-$(CONFIG_REGULATOR_BD71815) += bd71815-regulator.o
obj-$(CONFIG_REGULATOR_BD71828) += bd71828-regulator.o
obj-$(CONFIG_REGULATOR_BD718XX) += bd718x7-regulator.o
obj-$(CONFIG_REGULATOR_BD9571MWV) += bd9571mwv-regulator.o
diff --git a/drivers/regulator/bd71815-regulator.c b/drivers/regulator/bd71815-regulator.c
new file mode 100644
index 000000000000..56d3292361d2
--- /dev/null
+++ b/drivers/regulator/bd71815-regulator.c
@@ -0,0 +1,675 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2014 Embest Technology Co. Ltd. Inc.
+ * bd71815-regulator.c ROHM BD71815 regulator driver
+ *
+ * Author: Tony Luo <luofc@embedinfo.com>
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/mfd/rohm-generic.h>
+#include <linux/mfd/rohm-bd71815.h>
+#include <linux/regulator/of_regulator.h>
+
+#define BD71815_STANDBY_OFFSET 0
+#define BD71815_DVS_BUCK_NUM 2
+#define BD71815_DVS_HIGH_LOW 2
+
+struct bd71815_regulator {
+ struct regulator_desc desc;
+ const struct rohm_dvs_config *dvs;
+};
+
+struct bd71815_pmic {
+ struct bd71815_regulator descs[BD71815_REGULATOR_CNT];
+ struct regmap *regmap;
+ struct device *dev;
+ struct gpio_descs *gps;
+ struct regulator_dev *rdev[BD71815_REGULATOR_CNT];
+};
+
+static const int bd7181x_wled_currents[] = {
+ /* 0x00 */
+ 10, 20, 30, 50,
+ 70, 100, 200, 300,
+ 500, 700, 1000, 2000,
+ 3000, 4000, 5000, 6000,
+ /* 0x10 */
+ 7000, 8000, 9000, 10000,
+ 11000, 12000, 13000, 14000,
+ 15000, 16000, 17000, 18000,
+ 19000, 20000, 21000, 22000,
+ /* 0x20 */
+ 23000, 24000, 25000,
+};
+
+const struct rohm_dvs_config buck1_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_BUCK1_VOLT_H,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = BD71815_BUCK_RUN_ON,
+ .snvs_on_mask = BD71815_BUCK_SNVS_ON,
+ .suspend_reg = BD71815_REG_BUCK1_VOLT_L,
+ .suspend_mask = BD71815_VOLT_MASK,
+ .suspend_on_mask = BD71815_BUCK_SUSP_ON,
+ .lpsr_reg = BD71815_REG_BUCK1_VOLT_L,
+ .lpsr_mask = BD71815_VOLT_MASK,
+ .lpsr_on_mask = BD71815_BUCK_LPSR_ON,
+};
+
+const struct rohm_dvs_config buck2_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_BUCK2_VOLT_H,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = BD71815_BUCK_RUN_ON,
+ .snvs_on_mask = BD71815_BUCK_SNVS_ON,
+ .suspend_reg = BD71815_REG_BUCK2_VOLT_L,
+ .suspend_mask = BD71815_VOLT_MASK,
+ .suspend_on_mask = BD71815_BUCK_SUSP_ON,
+ .lpsr_reg = BD71815_REG_BUCK2_VOLT_L,
+ .lpsr_mask = BD71815_VOLT_MASK,
+ .lpsr_on_mask = BD71815_BUCK_LPSR_ON,
+};
+
+const struct rohm_dvs_config buck3_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_BUCK3_VOLT,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = BD71815_BUCK_RUN_ON,
+ .snvs_on_mask = BD71815_BUCK_SNVS_ON,
+ .suspend_on_mask = BD71815_BUCK_SUSP_ON,
+ .lpsr_on_mask = BD71815_BUCK_LPSR_ON,
+};
+
+const struct rohm_dvs_config buck4_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_BUCK4_VOLT,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = BD71815_BUCK_RUN_ON,
+ .snvs_on_mask = BD71815_BUCK_SNVS_ON,
+ .suspend_on_mask = BD71815_BUCK_SUSP_ON,
+ .lpsr_on_mask = BD71815_BUCK_LPSR_ON,
+};
+
+const struct rohm_dvs_config ldo1_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_LDO_MODE1,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = LDO1_RUN_ON,
+ .snvs_on_mask = LDO1_SNVS_ON,
+ .suspend_on_mask = LDO1_SUSP_ON,
+ .lpsr_on_mask = LDO1_LPSR_ON,
+};
+
+const struct rohm_dvs_config ldo2_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_LDO_MODE2,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = LDO2_RUN_ON,
+ .snvs_on_mask = LDO2_SNVS_ON,
+ .suspend_on_mask = LDO2_SUSP_ON,
+ .lpsr_on_mask = LDO2_LPSR_ON,
+};
+
+const struct rohm_dvs_config ldo3_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_LDO_MODE2,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = LDO3_RUN_ON,
+ .snvs_on_mask = LDO3_SNVS_ON,
+ .suspend_on_mask = LDO3_SUSP_ON,
+ .lpsr_on_mask = LDO3_LPSR_ON,
+};
+
+const struct rohm_dvs_config ldo4_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_LDO_MODE3,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = LDO4_RUN_ON,
+ .snvs_on_mask = LDO4_SNVS_ON,
+ .suspend_on_mask = LDO4_SUSP_ON,
+ .lpsr_on_mask = LDO4_LPSR_ON,
+};
+
+const struct rohm_dvs_config ldo5_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_LDO_MODE3,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = LDO5_RUN_ON,
+ .snvs_on_mask = LDO5_SNVS_ON,
+ .suspend_on_mask = LDO5_SUSP_ON,
+ .lpsr_on_mask = LDO5_LPSR_ON,
+};
+
+const struct rohm_dvs_config dvref_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_on_mask = DVREF_RUN_ON,
+ .snvs_on_mask = DVREF_SNVS_ON,
+ .suspend_on_mask = DVREF_SUSP_ON,
+ .lpsr_on_mask = DVREF_LPSR_ON,
+};
+
+const struct rohm_dvs_config ldolpsr_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_on_mask = DVREF_RUN_ON,
+ .snvs_on_mask = DVREF_SNVS_ON,
+ .suspend_on_mask = DVREF_SUSP_ON,
+ .lpsr_on_mask = DVREF_LPSR_ON,
+};
+
+const struct rohm_dvs_config buck5_dvs = {
+ .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS |
+ ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR,
+ .run_reg = BD71815_REG_BUCK5_VOLT,
+ .run_mask = BD71815_VOLT_MASK,
+ .run_on_mask = BD71815_BUCK_RUN_ON,
+ .snvs_on_mask = BD71815_BUCK_SNVS_ON,
+ .suspend_on_mask = BD71815_BUCK_SUSP_ON,
+ .lpsr_on_mask = BD71815_BUCK_LPSR_ON,
+};
+
+static int set_hw_dvs_levels(struct device_node *np,
+ const struct regulator_desc *desc,
+ struct regulator_config *cfg)
+{
+ struct bd71815_regulator *data;
+
+ data = container_of(desc, struct bd71815_regulator, desc);
+ return rohm_regulator_set_dvs_levels(data->dvs, np, desc, cfg->regmap);
+}
+
+static int buck12_set_hw_dvs_levels(struct device_node *np,
+ const struct regulator_desc *desc,
+ struct regulator_config *cfg)
+{
+ struct bd71815_regulator *data;
+ int ret = 0, val;
+
+ data = container_of(desc, struct bd71815_regulator, desc);
+
+ if (of_find_property(np, "rohm,dvs-run-voltage", NULL) ||
+ of_find_property(np, "rohm,dvs-suspend-voltage", NULL) ||
+ of_find_property(np, "rohm,dvs-lpsr-voltage", NULL) ||
+ of_find_property(np, "rohm,dvs-snvs-voltage", NULL)) {
+ ret = regmap_read(cfg->regmap, desc->vsel_reg, &val);
+ if (ret)
+ return ret;
+
+ if (!(BD71815_BUCK_STBY_DVS & val) &&
+ !(BD71815_BUCK_DVSSEL & val)) {
+ int val2;
+
+ /*
+ * We are currently using voltage from _L.
+ * We'd better copy it to _H and switch to it to
+ * avoid shutting us down if LPSR or SUSPEND is set to
+ * disabled. _L value is at reg _H + 1
+ */
+ ret = regmap_read(cfg->regmap, desc->vsel_reg + 1,
+ &val2);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(cfg->regmap, desc->vsel_reg,
+ BD71815_VOLT_MASK |
+ BD71815_BUCK_DVSSEL,
+ val2 | BD71815_BUCK_DVSSEL);
+ if (ret)
+ return ret;
+ }
+ ret = rohm_regulator_set_dvs_levels(data->dvs, np, desc,
+ cfg->regmap);
+ if (ret)
+ return ret;
+ /*
+ * DVS levels were given => use HW-state machine for voltage
+ * controls. NOTE: This means that if voltage is changed
+ * by SW the ramp-rate is not respected. Should we disable
+ * SW voltage control when the HW state machine is used?
+ */
+ ret = regmap_update_bits(cfg->regmap, desc->vsel_reg,
+ BD71815_BUCK_STBY_DVS,
+ BD71815_BUCK_STBY_DVS);
+ }
+
+ return ret;
+}
+
+/*
+ * BUCK1/2
+ * BUCK1RAMPRATE[1:0] BUCK1 DVS ramp rate setting
+ * 00: 10.00mV/usec 10mV 1uS
+ * 01: 5.00mV/usec 10mV 2uS
+ * 10: 2.50mV/usec 10mV 4uS
+ * 11: 1.25mV/usec 10mV 8uS
+ */
+static int bd7181x_buck12_set_ramp_delay(struct regulator_dev *rdev,
+ int ramp_delay)
+{
+ struct bd71815_pmic *pmic = rdev_get_drvdata(rdev);
+ int id = rdev->desc->id;
+ unsigned int ramp_value = BD71815_BUCK_RAMPRATE_10P00MV;
+
+ switch (ramp_delay) {
+ case 1 ... 1250:
+ ramp_value = BD71815_BUCK_RAMPRATE_1P25MV;
+ break;
+ case 1251 ... 2500:
+ ramp_value = BD71815_BUCK_RAMPRATE_2P50MV;
+ break;
+ case 2501 ... 5000:
+ ramp_value = BD71815_BUCK_RAMPRATE_5P00MV;
+ break;
+ case 5001 ... 10000:
+ ramp_value = BD71815_BUCK_RAMPRATE_10P00MV;
+ break;
+ default:
+ ramp_value = BD71815_BUCK_RAMPRATE_10P00MV;
+ dev_err(pmic->dev,
+ "%s: ramp_delay: %d not supported, setting 10000mV//us\n",
+ rdev->desc->name, ramp_delay);
+ }
+
+ return regmap_update_bits(pmic->regmap, BD71815_REG_BUCK1_MODE + id*0x1,
+ BD71815_BUCK_RAMPRATE_MASK, ramp_value << 6);
+}
+
+static int bd7181x_led_set_current_limit(struct regulator_dev *rdev,
+ int min_uA, int max_uA)
+{
+ int ret;
+ int onstatus;
+
+ onstatus = regulator_is_enabled_regmap(rdev);
+
+ ret = regulator_set_current_limit_regmap(rdev, min_uA, max_uA);
+ if (!ret) {
+ int newstatus;
+
+ newstatus = regulator_is_enabled_regmap(rdev);
+ if (onstatus != newstatus) {
+ /*
+ * HW FIX: spurious led status change detected. Toggle
+ * state as a workaround
+ */
+ if (onstatus)
+ ret = regulator_enable_regmap(rdev);
+ else
+ ret = regulator_disable_regmap(rdev);
+
+ if (ret)
+ dev_err(rdev_get_dev(rdev),
+ "LED status error\n");
+ }
+ }
+ return ret;
+}
+
+static int bd7181x_buck12_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct bd71815_pmic *pmic = rdev_get_drvdata(rdev);
+ int rid = rdev_get_id(rdev);
+ int ret, regh, regl, val;
+
+ regh = BD71815_REG_BUCK1_VOLT_H + rid * 0x2;
+ regl = BD71815_REG_BUCK1_VOLT_L + rid * 0x2;
+
+ ret = regmap_read(pmic->regmap, regh, &val);
+ if (ret)
+ return ret;
+
+ /*
+ * If we use HW state machine based voltage reg selection - then we
+ * return BD71815_REG_BUCK1_VOLT_H which is used at RUN.
+ * Else we do return the BD71815_REG_BUCK1_VOLT_H or
+ * BD71815_REG_BUCK1_VOLT_L depending on which is selected to be used
+ * by BD71815_BUCK_DVSSEL bit
+ */
+ if ((!(val & BD71815_BUCK_STBY_DVS)) && (!(val & BD71815_BUCK_DVSSEL)))
+ ret = regmap_read(pmic->regmap, regl, &val);
+
+ if (ret)
+ return ret;
+
+ return val & BD71815_VOLT_MASK;
+}
+
+/*
+ * For Buck 1/2.
+ *
+ */
+static int bd7181x_buck12_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned int sel)
+{
+ struct bd71815_pmic *pmic = rdev_get_drvdata(rdev);
+ int rid = rdev_get_id(rdev);
+ int ret, val, reg, regh, regl;
+
+ regh = BD71815_REG_BUCK1_VOLT_H + rid*0x2;
+ regl = BD71815_REG_BUCK1_VOLT_L + rid*0x2;
+
+ ret = regmap_read(pmic->regmap, regh, &val);
+ if (ret)
+ return ret;
+
+ /*
+ * If bucks 1 & 2 are controlled by state machine - then the RUN state
+ * voltage is set to BD71815_VOLT_MASK. Changing SUSPEND/LPSR voltages at
+ * runtime is not supported by this driver.
+ */
+ if (((val & BD71815_BUCK_STBY_DVS))) {
+ return regmap_update_bits(pmic->regmap, regh, BD71815_VOLT_MASK,
+ sel);
+ }
+ /* Update new voltage to the register which is not selected now */
+ if (val & BD71815_BUCK_DVSSEL)
+ reg = regl;
+ else
+ reg = regh;
+
+ ret = regmap_update_bits(pmic->regmap, reg, BD71815_VOLT_MASK, sel);
+ if (ret)
+ return ret;
+
+ /* Select the other DVS register to be used */
+ return regmap_update_bits(pmic->regmap, regh, BD71815_BUCK_DVSSEL, ~val);
+}
+
+static const struct regulator_ops bd7181x_ldo_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+};
+
+static const struct regulator_ops bd7181x_fixed_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+};
+
+static const struct regulator_ops bd7181x_buck_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+};
+
+static const struct regulator_ops bd7181x_buck12_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_voltage_sel = bd7181x_buck12_set_voltage_sel,
+ .get_voltage_sel = bd7181x_buck12_get_voltage_sel,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_ramp_delay = bd7181x_buck12_set_ramp_delay,
+};
+
+static const struct regulator_ops bd7181x_led_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .set_current_limit = bd7181x_led_set_current_limit,
+ .get_current_limit = regulator_get_current_limit_regmap,
+};
+
+#define BD71815_FIXED_REG(_name, _id, ereg, emsk, voltage, _dvs) \
+ [(_id)] = { \
+ .desc = { \
+ .name = #_name, \
+ .of_match = of_match_ptr(#_name), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .n_voltages = 1, \
+ .ops = &bd7181x_fixed_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = (_id), \
+ .owner = THIS_MODULE, \
+ .min_uV = (voltage), \
+ .enable_reg = (ereg), \
+ .enable_mask = (emsk), \
+ .of_parse_cb = set_hw_dvs_levels, \
+ }, \
+ .dvs = (_dvs), \
+ }
+
+#define BD71815_BUCK_REG(_name, _id, vsel, ereg, min, max, step, _dvs) \
+ [(_id)] = { \
+ .desc = { \
+ .name = #_name, \
+ .of_match = of_match_ptr(#_name), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .n_voltages = ((max) - (min)) / (step) + 1, \
+ .ops = &bd7181x_buck_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = (_id), \
+ .owner = THIS_MODULE, \
+ .min_uV = (min), \
+ .uV_step = (step), \
+ .vsel_reg = (vsel), \
+ .vsel_mask = BD71815_VOLT_MASK, \
+ .enable_reg = (ereg), \
+ .enable_mask = BD71815_BUCK_RUN_ON, \
+ .of_parse_cb = set_hw_dvs_levels, \
+ }, \
+ .dvs = (_dvs), \
+ }
+
+#define BD71815_BUCK12_REG(_name, _id, vsel, ereg, min, max, step, \
+ _dvs) \
+ [(_id)] = { \
+ .desc = { \
+ .name = #_name, \
+ .of_match = of_match_ptr(#_name), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .n_voltages = ((max) - (min)) / (step) + 1, \
+ .ops = &bd7181x_buck12_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = (_id), \
+ .owner = THIS_MODULE, \
+ .min_uV = (min), \
+ .uV_step = (step), \
+ .vsel_reg = (vsel), \
+ .vsel_mask = 0x3f, \
+ .enable_reg = (ereg), \
+ .enable_mask = 0x04, \
+ .of_parse_cb = buck12_set_hw_dvs_levels, \
+ }, \
+ .dvs = (_dvs), \
+ }
+
+#define BD71815_LED_REG(_name, _id, csel, mask, ereg, emsk, currents) \
+ [(_id)] = { \
+ .desc = { \
+ .name = #_name, \
+ .of_match = of_match_ptr(#_name), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .n_current_limits = ARRAY_SIZE(currents), \
+ .ops = &bd7181x_led_regulator_ops, \
+ .type = REGULATOR_CURRENT, \
+ .id = (_id), \
+ .owner = THIS_MODULE, \
+ .curr_table = currents, \
+ .csel_reg = (csel), \
+ .csel_mask = (mask), \
+ .enable_reg = (ereg), \
+ .enable_mask = (emsk), \
+ }, \
+ }
+
+#define BD71815_LDO_REG(_name, _id, vsel, ereg, emsk, min, max, step, \
+ _dvs) \
+ [(_id)] = { \
+ .desc = { \
+ .name = #_name, \
+ .of_match = of_match_ptr(#_name), \
+ .regulators_node = of_match_ptr("regulators"), \
+ .n_voltages = ((max) - (min)) / (step) + 1, \
+ .ops = &bd7181x_ldo_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = (_id), \
+ .owner = THIS_MODULE, \
+ .min_uV = (min), \
+ .uV_step = (step), \
+ .vsel_reg = (vsel), \
+ .vsel_mask = BD71815_VOLT_MASK, \
+ .enable_reg = (ereg), \
+ .enable_mask = (emsk), \
+ .of_parse_cb = set_hw_dvs_levels, \
+ }, \
+ .dvs = (_dvs), \
+ }
+
+static struct bd71815_regulator bd71815_regulators[] = {
+ BD71815_BUCK12_REG(buck1, BD71815_BUCK1, BD71815_REG_BUCK1_VOLT_H,
+ BD71815_REG_BUCK1_MODE, 800000, 2000000, 25000,
+ &buck1_dvs),
+ BD71815_BUCK12_REG(buck2, BD71815_BUCK2, BD71815_REG_BUCK2_VOLT_H,
+ BD71815_REG_BUCK2_MODE, 800000, 2000000, 25000,
+ &buck2_dvs),
+ BD71815_BUCK_REG(buck3, BD71815_BUCK3, BD71815_REG_BUCK3_VOLT,
+ BD71815_REG_BUCK3_MODE, 1200000, 2700000, 50000,
+ &buck3_dvs),
+ BD71815_BUCK_REG(buck4, BD71815_BUCK4, BD71815_REG_BUCK4_VOLT,
+ BD71815_REG_BUCK4_MODE, 1100000, 1850000, 25000,
+ &buck4_dvs),
+ BD71815_BUCK_REG(buck5, BD71815_BUCK5, BD71815_REG_BUCK5_VOLT,
+ BD71815_REG_BUCK5_MODE, 1800000, 3300000, 50000,
+ &buck5_dvs),
+ BD71815_LDO_REG(ldo1, BD71815_LDO1, BD71815_REG_LDO1_VOLT,
+ BD71815_REG_LDO_MODE1, LDO1_RUN_ON, 800000, 3300000,
+ 50000, &ldo1_dvs),
+ BD71815_LDO_REG(ldo2, BD71815_LDO2, BD71815_REG_LDO2_VOLT,
+ BD71815_REG_LDO_MODE2, LDO2_RUN_ON, 800000, 3300000,
+ 50000, &ldo2_dvs),
+ /*
+ * Let's default LDO3 to be enabled by SW. We can override ops if DT
+ * says LDO3 should be enabled by HW when DCIN is connected.
+ */
+ BD71815_LDO_REG(ldo3, BD71815_LDO3, BD71815_REG_LDO3_VOLT,
+ BD71815_REG_LDO_MODE2, LDO3_RUN_ON, 800000, 3300000,
+ 50000, &ldo3_dvs),
+ BD71815_LDO_REG(ldo4, BD71815_LDO4, BD71815_REG_LDO4_VOLT,
+ BD71815_REG_LDO_MODE3, LDO4_RUN_ON, 800000, 3300000,
+ 50000, &ldo4_dvs),
+ BD71815_LDO_REG(ldo5, BD71815_LDO5, BD71815_REG_LDO5_VOLT_H,
+ BD71815_REG_LDO_MODE3, LDO5_RUN_ON, 800000, 3300000,
+ 50000, &ldo5_dvs),
+ BD71815_FIXED_REG(ldodvref, BD71815_LDODVREF, BD71815_REG_LDO_MODE4,
+ DVREF_RUN_ON, 3000000, &dvref_dvs),
+ BD71815_FIXED_REG(ldolpsr, BD71815_LDOLPSR, BD71815_REG_LDO_MODE4,
+ LDO_LPSR_RUN_ON, 1800000, &ldolpsr_dvs),
+ BD71815_LED_REG(wled, BD71815_WLED, BD71815_REG_LED_DIMM, LED_DIMM_MASK,
+ BD71815_REG_LED_CTRL, LED_RUN_ON,
+ bd7181x_wled_currents),
+};
+
+int bd7181x_probe(struct platform_device *pdev)
+{
+ struct bd71815_pmic *pmic;
+ struct regulator_config config = {};
+ int i, ret;
+ struct gpio_desc *ldo4_en;
+
+ pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
+ if (!pmic)
+ return -ENOMEM;
+
+ memcpy(pmic->descs, bd71815_regulators, sizeof(pmic->descs));
+
+ pmic->dev = &pdev->dev;
+ pmic->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!pmic->regmap) {
+ dev_err(pmic->dev, "No parent regmap\n");
+ return -ENODEV;
+ }
+ platform_set_drvdata(pdev, pmic);
+ ldo4_en = devm_gpiod_get_from_of_node(&pdev->dev,
+ pdev->dev.parent->of_node,
+ "rohm,vsel-gpios", 0,
+ GPIOD_ASIS, "ldo4-en");
+
+ if (IS_ERR(ldo4_en)) {
+ ret = PTR_ERR(ldo4_en);
+ if (ret != -ENOENT)
+ return ret;
+ ldo4_en = NULL;
+ }
+
+ /* Disable to go to ship-mode */
+ ret = regmap_update_bits(pmic->regmap, BD71815_REG_PWRCTRL, RESTARTEN, 0);
+ if (ret)
+ return ret;
+
+ config.dev = pdev->dev.parent;
+ config.regmap = pmic->regmap;
+
+ for (i = 0; i < BD71815_REGULATOR_CNT; i++) {
+ struct regulator_desc *desc;
+ struct regulator_dev *rdev;
+
+ desc = &pmic->descs[i].desc;
+ if (i == BD71815_LDO4)
+ config.ena_gpiod = ldo4_en;
+
+ config.driver_data = pmic;
+
+ rdev = devm_regulator_register(&pdev->dev, desc, &config);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev,
+ "failed to register %s regulator\n",
+ desc->name);
+ return PTR_ERR(rdev);
+ }
+ config.ena_gpiod = NULL;
+ pmic->rdev[i] = rdev;
+ }
+ return 0;
+}
+
+static const struct platform_device_id bd7181x_pmic_id[] = {
+ { "bd71815-pmic", ROHM_CHIP_TYPE_BD71815 },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, bd7181x_pmic_id);
+
+static struct platform_driver bd7181x_regulator = {
+ .driver = {
+ .name = "bd7181x-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = bd7181x_probe,
+ .id_table = bd7181x_pmic_id,
+/* .remove = bd7181x_remove, */
+};
+module_platform_driver(bd7181x_regulator);
+
+MODULE_AUTHOR("Tony Luo <luofc@embedinfo.com>");
+MODULE_DESCRIPTION("BD71815 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bd7181x-pmic");
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 13/15] clk: bd718x7: Add support for clk gate on ROHM BD71815 PMIC
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (11 preceding siblings ...)
2021-01-08 13:43 ` [PATCH 12/15] regulator: Support ROHM BD71815 regulators Matti Vaittinen
@ 2021-01-08 13:45 ` Matti Vaittinen
2021-01-08 13:46 ` [PATCH 14/15] rtc: bd70528: Support RTC on ROHM BD71815 Matti Vaittinen
2021-01-08 13:46 ` [PATCH 15/15] MAINTAINERS: Add ROHM BD71815AGW Matti Vaittinen
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:45 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Matti Vaittinen, Michael Turquette, Stephen Boyd,
linux-kernel, linux-power, linux-clk
ROHM BD71815 also provide clk signal for RTC. Add control
for gating this clock.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
clk Kconfig fix
---
drivers/clk/clk-bd718x7.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c
index 17d90e09f1c0..d9e70e506d18 100644
--- a/drivers/clk/clk-bd718x7.c
+++ b/drivers/clk/clk-bd718x7.c
@@ -13,6 +13,8 @@
#include <linux/regmap.h>
/* clk control registers */
+/* BD71815 */
+#define BD71815_REG_OUT32K 0x1d
/* BD70528 */
#define BD70528_REG_OUT32K 0x2c
/* BD71828 */
@@ -118,6 +120,10 @@ static int bd71837_clk_probe(struct platform_device *pdev)
c->reg = BD70528_REG_OUT32K;
c->mask = CLK_OUT_EN_MASK;
break;
+ case ROHM_CHIP_TYPE_BD71815:
+ c->reg = BD71815_REG_OUT32K;
+ c->mask = CLK_OUT_EN_MASK;
+ break;
default:
dev_err(&pdev->dev, "Unknown clk chip\n");
return -EINVAL;
@@ -146,6 +152,7 @@ static const struct platform_device_id bd718x7_clk_id[] = {
{ "bd71847-clk", ROHM_CHIP_TYPE_BD71847 },
{ "bd70528-clk", ROHM_CHIP_TYPE_BD70528 },
{ "bd71828-clk", ROHM_CHIP_TYPE_BD71828 },
+ { "bd71815-clk", ROHM_CHIP_TYPE_BD71815 },
{ },
};
MODULE_DEVICE_TABLE(platform, bd718x7_clk_id);
@@ -161,6 +168,6 @@ static struct platform_driver bd71837_clk = {
module_platform_driver(bd71837_clk);
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
-MODULE_DESCRIPTION("BD71837/BD71847/BD70528 chip clk driver");
+MODULE_DESCRIPTION("BD718(15/18/28/37/47/50) and BD70528 chip clk driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bd718xx-clk");
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 14/15] rtc: bd70528: Support RTC on ROHM BD71815
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (12 preceding siblings ...)
2021-01-08 13:45 ` [PATCH 13/15] clk: bd718x7: Add support for clk gate on ROHM BD71815 PMIC Matti Vaittinen
@ 2021-01-08 13:46 ` Matti Vaittinen
2021-01-08 13:46 ` [PATCH 15/15] MAINTAINERS: Add ROHM BD71815AGW Matti Vaittinen
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:46 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Matti Vaittinen, Alessandro Zummo, Alexandre Belloni,
linux-kernel, linux-power, linux-rtc
BD71815 contains similar RTC block as BD71828. Only the address offsets
seem different. Support also BD71815 RTC using rtc-bd70528.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
drivers/rtc/Kconfig | 6 +++---
drivers/rtc/rtc-bd70528.c | 45 ++++++++++++++++++++++++++++++++-------
2 files changed, 40 insertions(+), 11 deletions(-)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 65ad9d0b47ab..9493fff823d1 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -501,11 +501,11 @@ config RTC_DRV_M41T80_WDT
watchdog timer in the ST M41T60 and M41T80 RTC chips series.
config RTC_DRV_BD70528
- tristate "ROHM BD70528 PMIC RTC"
- depends on MFD_ROHM_BD70528 && (BD70528_WATCHDOG || !BD70528_WATCHDOG)
+ tristate "ROHM BD70528, BD71815 and BD71828 PMIC RTC"
+ depends on MFD_ROHM_BD71828 || MFD_ROHM_BD70528 && (BD70528_WATCHDOG || !BD70528_WATCHDOG)
help
If you say Y here you will get support for the RTC
- block on ROHM BD70528 and BD71828 Power Management IC.
+ block on ROHM BD70528, BD71815 and BD71828 Power Management IC.
This driver can also be built as a module. If so, the module
will be called rtc-bd70528.
diff --git a/drivers/rtc/rtc-bd70528.c b/drivers/rtc/rtc-bd70528.c
index a255aac6740a..5fde967b9da8 100644
--- a/drivers/rtc/rtc-bd70528.c
+++ b/drivers/rtc/rtc-bd70528.c
@@ -6,6 +6,7 @@
#include <linux/bcd.h>
#include <linux/mfd/rohm-bd70528.h>
+#include <linux/mfd/rohm-bd71815.h>
#include <linux/mfd/rohm-bd71828.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -13,6 +14,12 @@
#include <linux/regmap.h>
#include <linux/rtc.h>
+/*
+ * On BD71828 and BD71815 the ALM0 MASK is 14 bytes after the ALM0
+ * block start
+ */
+#define BD718XX_ALM_EN_OFFSET 14
+
/*
* We read regs RTC_SEC => RTC_YEAR
* this struct is ordered according to chip registers.
@@ -55,6 +62,7 @@ struct bd70528_rtc {
struct regmap *regmap;
struct device *dev;
u8 reg_time_start;
+ u8 bd718xx_alm_block_start;
bool has_rtc_timers;
};
@@ -236,8 +244,8 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a)
struct bd71828_rtc_alm alm;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- ret = regmap_bulk_read(r->regmap, BD71828_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, r->bd718xx_alm_block_start, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -250,8 +258,8 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a)
else
alm.alm_mask |= BD70528_MASK_ALM_EN;
- ret = regmap_bulk_write(r->regmap, BD71828_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_write(r->regmap, r->bd718xx_alm_block_start, &alm,
+ sizeof(alm));
if (ret)
dev_err(dev, "Failed to set alarm time\n");
@@ -311,8 +319,8 @@ static int bd71828_read_alarm(struct device *dev, struct rtc_wkalrm *a)
struct bd71828_rtc_alm alm;
struct bd70528_rtc *r = dev_get_drvdata(dev);
- ret = regmap_bulk_read(r->regmap, BD71828_REG_RTC_ALM_START,
- &alm, sizeof(alm));
+ ret = regmap_bulk_read(r->regmap, r->bd718xx_alm_block_start, &alm,
+ sizeof(alm));
if (ret) {
dev_err(dev, "Failed to read alarm regs\n");
return ret;
@@ -453,8 +461,9 @@ static int bd71828_alm_enable(struct device *dev, unsigned int enabled)
if (!enabled)
enableval = 0;
- ret = regmap_update_bits(r->regmap, BD71828_REG_RTC_ALM0_MASK,
- BD70528_MASK_ALM_EN, enableval);
+ ret = regmap_update_bits(r->regmap, r->bd718xx_alm_block_start +
+ BD718XX_ALM_EN_OFFSET, BD70528_MASK_ALM_EN,
+ enableval);
if (ret)
dev_err(dev, "Failed to change alarm state\n");
@@ -524,9 +533,28 @@ static int bd70528_probe(struct platform_device *pdev)
enable_main_irq = true;
rtc_ops = &bd70528_rtc_ops;
break;
+ case ROHM_CHIP_TYPE_BD71815:
+ irq_name = "bd71815-rtc-alm-0";
+ bd_rtc->reg_time_start = BD71815_REG_RTC_START;
+
+ /*
+ * See also BD718XX_ALM_EN_OFFSET:
+ * This works for BD71828 and BD71815 as they have same offset
+ * between ALM0 start and ALM0_MASK. If new ICs are to be
+ * added this requires proper check as ALM0_MASK is not located
+ * at the end of ALM0 block - but after all ALM blocks so if
+ * amount of ALMs differ the offset to enable/disable is likely
+ * to be incorrect and enable/disable must be given as own
+ * reg address here.
+ */
+ bd_rtc->bd718xx_alm_block_start = BD71815_REG_RTC_ALM_START;
+ hour_reg = BD71815_REG_HOUR;
+ rtc_ops = &bd71828_rtc_ops;
+ break;
case ROHM_CHIP_TYPE_BD71828:
irq_name = "bd71828-rtc-alm-0";
bd_rtc->reg_time_start = BD71828_REG_RTC_START;
+ bd_rtc->bd718xx_alm_block_start = BD71828_REG_RTC_ALM_START;
hour_reg = BD71828_REG_RTC_HOUR;
rtc_ops = &bd71828_rtc_ops;
break;
@@ -605,6 +633,7 @@ static int bd70528_probe(struct platform_device *pdev)
static const struct platform_device_id bd718x7_rtc_id[] = {
{ "bd70528-rtc", ROHM_CHIP_TYPE_BD70528 },
{ "bd71828-rtc", ROHM_CHIP_TYPE_BD71828 },
+ { "bd71815-rtc", ROHM_CHIP_TYPE_BD71815 },
{ },
};
MODULE_DEVICE_TABLE(platform, bd718x7_rtc_id);
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* [PATCH 15/15] MAINTAINERS: Add ROHM BD71815AGW
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
` (13 preceding siblings ...)
2021-01-08 13:46 ` [PATCH 14/15] rtc: bd70528: Support RTC on ROHM BD71815 Matti Vaittinen
@ 2021-01-08 13:46 ` Matti Vaittinen
14 siblings, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-08 13:46 UTC (permalink / raw)
To: matti.vaittinen, mazziesaccount
Cc: Lee Jones, Rob Herring, Liam Girdwood, Mark Brown,
Matti Vaittinen, Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
Add maintainer entries for ROHM BD71815AGW drivers.
New regulator and GPIO drivers were introduced for these PMICs.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
---
MAINTAINERS | 3 +++
1 file changed, 3 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 281de213ef47..eac1875ec788 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15102,18 +15102,21 @@ F: Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt
F: Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt
F: drivers/clk/clk-bd718x7.c
F: drivers/gpio/gpio-bd70528.c
+F: drivers/gpio/gpio-bd71815.c
F: drivers/gpio/gpio-bd71828.c
F: drivers/mfd/rohm-bd70528.c
F: drivers/mfd/rohm-bd71828.c
F: drivers/mfd/rohm-bd718x7.c
F: drivers/power/supply/bd70528-charger.c
F: drivers/regulator/bd70528-regulator.c
+F: drivers/regulator/bd71815-regulator.c
F: drivers/regulator/bd71828-regulator.c
F: drivers/regulator/bd718x7-regulator.c
F: drivers/regulator/rohm-regulator.c
F: drivers/rtc/rtc-bd70528.c
F: drivers/watchdog/bd70528_wdt.c
F: include/linux/mfd/rohm-bd70528.h
+F: include/linux/mfd/rohm-bd71815.h
F: include/linux/mfd/rohm-bd71828.h
F: include/linux/mfd/rohm-bd718x7.h
F: include/linux/mfd/rohm-generic.h
--
2.25.4
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
^ permalink raw reply related [flat|nested] 34+ messages in thread
* Re: [PATCH 09/15] gpio: support ROHM BD71815 GPOs
2021-01-08 13:39 ` [PATCH 09/15] gpio: support ROHM BD71815 GPOs Matti Vaittinen
@ 2021-01-08 19:28 ` kernel test robot
2021-01-09 0:45 ` Linus Walleij
1 sibling, 0 replies; 34+ messages in thread
From: kernel test robot @ 2021-01-08 19:28 UTC (permalink / raw)
To: Matti Vaittinen, Matti Vaittinen
Cc: kbuild-all, Lee Jones, Matti Vaittinen, Matti Vaittinen,
Linus Walleij, Bartosz Golaszewski, linux-kernel, linux-power,
linux-gpio
[-- Attachment #1: Type: text/plain, Size: 2143 bytes --]
Hi Matti,
I love your patch! Perhaps something to improve:
[auto build test WARNING on lee-mfd/for-mfd-next]
[also build test WARNING on regulator/for-next abelloni/rtc-next v5.11-rc2 next-20210108]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Matti-Vaittinen/Support-ROHM-BD71815-PMIC/20210108-215230
base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next
config: powerpc64-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/67af8e83e681acc78ab2552025592e881252e470
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Matti-Vaittinen/Support-ROHM-BD71815-PMIC/20210108-215230
git checkout 67af8e83e681acc78ab2552025592e881252e470
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/gpio/gpio-bd71815.c:5: warning: "DEBUG" redefined
5 | #define DEBUG
|
<command-line>: note: this is the location of the previous definition
vim +/DEBUG +5 drivers/gpio/gpio-bd71815.c
> 5 #define DEBUG
6 #include <linux/module.h>
7 #include <linux/init.h>
8 #include <linux/kthread.h>
9 #include <linux/irq.h>
10 #include <linux/gpio/driver.h>
11 #include <linux/platform_device.h>
12 #include <linux/of.h>
13 #include <linux/mfd/rohm-bd71815.h>
14 #include <linux/mfd/rohm-generic.h>
15
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 71631 bytes --]
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 12/15] regulator: Support ROHM BD71815 regulators
2021-01-08 13:43 ` [PATCH 12/15] regulator: Support ROHM BD71815 regulators Matti Vaittinen
@ 2021-01-08 22:30 ` kernel test robot
0 siblings, 0 replies; 34+ messages in thread
From: kernel test robot @ 2021-01-08 22:30 UTC (permalink / raw)
To: Matti Vaittinen, Matti Vaittinen
Cc: kbuild-all, Lee Jones, Liam Girdwood, Mark Brown,
Matti Vaittinen, Matti Vaittinen, linux-kernel, linux-power
[-- Attachment #1: Type: text/plain, Size: 3762 bytes --]
Hi Matti,
I love your patch! Perhaps something to improve:
[auto build test WARNING on lee-mfd/for-mfd-next]
[also build test WARNING on regulator/for-next abelloni/rtc-next v5.11-rc2 next-20210108]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Matti-Vaittinen/Support-ROHM-BD71815-PMIC/20210108-215230
base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next
config: powerpc64-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/c84f932f4232b680eb9cc134cf94999bfda0a948
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Matti-Vaittinen/Support-ROHM-BD71815-PMIC/20210108-215230
git checkout c84f932f4232b680eb9cc134cf94999bfda0a948
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/regulator/bd71815-regulator.c:592:5: warning: no previous prototype for 'bd7181x_probe' [-Wmissing-prototypes]
592 | int bd7181x_probe(struct platform_device *pdev)
| ^~~~~~~~~~~~~
vim +/bd7181x_probe +592 drivers/regulator/bd71815-regulator.c
591
> 592 int bd7181x_probe(struct platform_device *pdev)
593 {
594 struct bd71815_pmic *pmic;
595 struct regulator_config config = {};
596 int i, ret;
597 struct gpio_desc *ldo4_en;
598
599 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
600 if (!pmic)
601 return -ENOMEM;
602
603 memcpy(pmic->descs, bd71815_regulators, sizeof(pmic->descs));
604
605 pmic->dev = &pdev->dev;
606 pmic->regmap = dev_get_regmap(pdev->dev.parent, NULL);
607 if (!pmic->regmap) {
608 dev_err(pmic->dev, "No parent regmap\n");
609 return -ENODEV;
610 }
611 platform_set_drvdata(pdev, pmic);
612 ldo4_en = devm_gpiod_get_from_of_node(&pdev->dev,
613 pdev->dev.parent->of_node,
614 "rohm,vsel-gpios", 0,
615 GPIOD_ASIS, "ldo4-en");
616
617 if (IS_ERR(ldo4_en)) {
618 ret = PTR_ERR(ldo4_en);
619 if (ret != -ENOENT)
620 return ret;
621 ldo4_en = NULL;
622 }
623
624 /* Disable to go to ship-mode */
625 ret = regmap_update_bits(pmic->regmap, BD71815_REG_PWRCTRL, RESTARTEN, 0);
626 if (ret)
627 return ret;
628
629 config.dev = pdev->dev.parent;
630 config.regmap = pmic->regmap;
631
632 for (i = 0; i < BD71815_REGULATOR_CNT; i++) {
633 struct regulator_desc *desc;
634 struct regulator_dev *rdev;
635
636 desc = &pmic->descs[i].desc;
637 if (i == BD71815_LDO4)
638 config.ena_gpiod = ldo4_en;
639
640 config.driver_data = pmic;
641
642 rdev = devm_regulator_register(&pdev->dev, desc, &config);
643 if (IS_ERR(rdev)) {
644 dev_err(&pdev->dev,
645 "failed to register %s regulator\n",
646 desc->name);
647 return PTR_ERR(rdev);
648 }
649 config.ena_gpiod = NULL;
650 pmic->rdev[i] = rdev;
651 }
652 return 0;
653 }
654
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 71634 bytes --]
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 09/15] gpio: support ROHM BD71815 GPOs
2021-01-08 13:39 ` [PATCH 09/15] gpio: support ROHM BD71815 GPOs Matti Vaittinen
2021-01-08 19:28 ` kernel test robot
@ 2021-01-09 0:45 ` Linus Walleij
2021-01-11 6:15 ` Vaittinen, Matti
1 sibling, 1 reply; 34+ messages in thread
From: Linus Walleij @ 2021-01-09 0:45 UTC (permalink / raw)
To: Matti Vaittinen
Cc: Matti Vaittinen, Lee Jones, Bartosz Golaszewski, linux-kernel,
linux-power, open list:GPIO SUBSYSTEM
On Fri, Jan 8, 2021 at 2:39 PM Matti Vaittinen
<matti.vaittinen@fi.rohmeurope.com> wrote:
> Support GPO(s) found from ROHM BD71815 power management IC. The IC has two
> GPO pins but only one is properly documented in data-sheet. The driver
> exposes by default only the documented GPO. The second GPO is connected to
> E5 pin and is marked as GND in data-sheet. Control for this undocumented
> pin can be enabled using a special DT property.
>
> This driver is derived from work by Peter Yang <yanglsh@embest-tech.com>
> although not so much of original is left.
>
> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Overall this looks good!
> + depends on MFD_ROHM_BD71828
I suppose this makes i possible to merge out-of-order with the
core patches actually.
> +#define DEBUG
Why? Development artifact?
> +#include <linux/kthread.h>
You certainly do not need this.
> +#include <linux/mfd/rohm-bd71815.h>
> +#include <linux/mfd/rohm-generic.h>
I guess registers come from these? Do you need both?
Add a comment about what they provide.
> + g->chip.ngpio = 1;
> + if (g->e5_pin_is_gpo)
> + g->chip.ngpio = 2;
Overwriting value, how not elegant.
if (g->e5_pin_is_gpo)
g->chip.ngpio = 2;
else
g->chip.ngpio = 1;
> + g->chip.parent = pdev->dev.parent;
> + g->chip.of_node = pdev->dev.parent->of_node;
> + g->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> + g->dev = &pdev->dev;
> +
> + ret = devm_gpiochip_add_data(&pdev->dev, &g->chip, g);
> + if (ret < 0) {
> + dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);
> + return ret;
> + }
It's a bit confusing how you use pdev->dev.parent for some stuff
and &pdev->dev for some.
What about assinging
struct device *dev = pdev->dev.parent;
and use dev for all the calls, it looks like it'd work fine.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 09/15] gpio: support ROHM BD71815 GPOs
2021-01-09 0:45 ` Linus Walleij
@ 2021-01-11 6:15 ` Vaittinen, Matti
2021-01-11 7:26 ` Vaittinen, Matti
0 siblings, 1 reply; 34+ messages in thread
From: Vaittinen, Matti @ 2021-01-11 6:15 UTC (permalink / raw)
To: linus.walleij
Cc: mazziesaccount, linux-power, linux-gpio, bgolaszewski,
linux-kernel, lee.jones
Hi Linus,
Thanks a lot for review!
On Sat, 2021-01-09 at 01:45 +0100, Linus Walleij wrote:
> On Fri, Jan 8, 2021 at 2:39 PM Matti Vaittinen
> <matti.vaittinen@fi.rohmeurope.com> wrote:
>
> > Support GPO(s) found from ROHM BD71815 power management IC. The IC
> > has two
> > GPO pins but only one is properly documented in data-sheet. The
> > driver
> > exposes by default only the documented GPO. The second GPO is
> > connected to
> > E5 pin and is marked as GND in data-sheet. Control for this
> > undocumented
> > pin can be enabled using a special DT property.
> >
> > This driver is derived from work by Peter Yang <
> > yanglsh@embest-tech.com>
> > although not so much of original is left.
> >
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
>
> Overall this looks good!
>
> > + depends on MFD_ROHM_BD71828
>
> I suppose this makes i possible to merge out-of-order with the
> core patches actually.
Actually not. MFD_ROHM_BD71828 is existing config as this BD71815 uses
same MFD driver with BD71828. So MFD headers should be in before
merging the depending sub-device drivers.
>
> > +#define DEBUG
>
> Why? Development artifact?
Ouch. Thanks for spotting it :) I'll get rid of that.
> > +#include <linux/kthread.h>
>
> You certainly do not need this.
>
> > +#include <linux/mfd/rohm-bd71815.h>
> > +#include <linux/mfd/rohm-generic.h>
>
> I guess registers come from these? Do you need both?
> Add a comment about what they provide.
Ok. Can do. (registers, I will recheck if I can get rid of including
the rohm-generic)
>
> > + g->chip.ngpio = 1;
> > + if (g->e5_pin_is_gpo)
> > + g->chip.ngpio = 2;
>
> Overwriting value, how not elegant.
>
> if (g->e5_pin_is_gpo)
> g->chip.ngpio = 2;
> else
> g->chip.ngpio = 1;
matter of taste I'd say :) As I would say about functions named like
_foo() ;) Not a poin I would fight over though - I can change this :]
> > + g->chip.parent = pdev->dev.parent;
> > + g->chip.of_node = pdev->dev.parent->of_node;
> > + g->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> > + g->dev = &pdev->dev;
> > +
> > + ret = devm_gpiochip_add_data(&pdev->dev, &g->chip, g);
> > + if (ret < 0) {
> > + dev_err(&pdev->dev, "could not register gpiochip,
> > %d\n", ret);
> > + return ret;
> > + }
>
> It's a bit confusing how you use pdev->dev.parent for some stuff
> and &pdev->dev for some.
>
> What about assinging
>
> struct device *dev = pdev->dev.parent;
>
> and use dev for all the calls, it looks like it'd work fine.
I wouldn't bind the lifetime of devm functions to the parent device. I
am not sure if it would work - what happens we bind lifetime of XX to
parent device - and next call at probe fails (for example with
DEFERRED?) I _assume_ the XX bound to parent is not released? (Please,
do correct me if I am wrong!)
Br,
Matti Vaittinen
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 09/15] gpio: support ROHM BD71815 GPOs
2021-01-11 6:15 ` Vaittinen, Matti
@ 2021-01-11 7:26 ` Vaittinen, Matti
0 siblings, 0 replies; 34+ messages in thread
From: Vaittinen, Matti @ 2021-01-11 7:26 UTC (permalink / raw)
To: linus.walleij
Cc: mazziesaccount, linux-power, linux-gpio, bgolaszewski,
linux-kernel, lee.jones
On Mon, 2021-01-11 at 08:15 +0200, Matti Vaittinen wrote:
> On Sat, 2021-01-09 at 01:45 +0100, Linus Walleij wrote:
> > On Fri, Jan 8, 2021 at 2:39 PM Matti Vaittinen
> > <matti.vaittinen@fi.rohmeurope.com> wrote:
> >
> > > Support GPO(s) found from ROHM BD71815 power management IC. The
> > > IC
> > > has two
> > > GPO pins but only one is properly documented in data-sheet. The
> > > driver
> > > exposes by default only the documented GPO. The second GPO is
> > > connected to
> > > E5 pin and is marked as GND in data-sheet. Control for this
> > > undocumented
> > > pin can be enabled using a special DT property.
> > >
> > > This driver is derived from work by Peter Yang <
> > > yanglsh@embest-tech.com>
> > > although not so much of original is left.
> > >
> > > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com
> > > >
// Snip
> > > + g->chip.parent = pdev->dev.parent;
> > > + g->chip.of_node = pdev->dev.parent->of_node;
> > > + g->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> > > + g->dev = &pdev->dev;
> > > +
> > > + ret = devm_gpiochip_add_data(&pdev->dev, &g->chip, g);
> > > + if (ret < 0) {
> > > + dev_err(&pdev->dev, "could not register gpiochip,
> > > %d\n", ret);
> > > + return ret;
> > > + }
> >
> > It's a bit confusing how you use pdev->dev.parent for some stuff
> > and &pdev->dev for some.
> >
> > What about assinging
> >
> > struct device *dev = pdev->dev.parent;
> >
> > and use dev for all the calls, it looks like it'd work fine.
>
> I wouldn't bind the lifetime of devm functions to the parent device.
> I
> am not sure if it would work - what happens we bind lifetime of XX to
> parent device - and next call at probe fails (for example with
> DEFERRED?) I _assume_ the XX bound to parent is not released?
> (Please,
> do correct me if I am wrong!)
/*
* Bind devm lifetime to this platform device => use dev for devm.
* also the prints should originate from this device.
*/
dev = &pdev->dev;
/* The device-tree and regmap come from MFD => use parent for that */
parent = dev->parent;
Maybe adding dev and parent variables + comments would clear it up?
Br,
Matti Vaittinen
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC
2021-01-08 13:34 ` [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC Matti Vaittinen
@ 2021-01-11 19:06 ` Rob Herring
2021-01-12 6:14 ` Vaittinen, Matti
0 siblings, 1 reply; 34+ messages in thread
From: Rob Herring @ 2021-01-11 19:06 UTC (permalink / raw)
To: Matti Vaittinen
Cc: mazziesaccount, Lee Jones, Liam Girdwood, Mark Brown,
Michael Turquette, Stephen Boyd, Linus Walleij,
Bartosz Golaszewski, Alessandro Zummo, Alexandre Belloni,
devicetree, linux-kernel, linux-power, linux-clk, linux-gpio,
linux-rtc
On Fri, Jan 08, 2021 at 03:34:52PM +0200, Matti Vaittinen wrote:
> Document DT bindings for ROHM BD71815.
>
> BD71815 is a single-chip power management IC mainly for battery-powered
> portable devices. The IC integrates 5 bucks, 7 LDOs, a boost driver for
> LED, a battery charger with a Coulomb counter, a real-time clock, a 32kHz
> clock and two general-purpose outputs although only one is documented by
> the data-sheet.
>
> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> ---
> .../bindings/mfd/rohm,bd71815-pmic.yaml | 198 ++++++++++++++++++
> 1 file changed, 198 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
>
> diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
> new file mode 100644
> index 000000000000..2206b2008acd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
> @@ -0,0 +1,198 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ROHM BD71815 Power Management Integrated Circuit bindings
> +
> +maintainers:
> + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> +
> +description: |
> + BD71815AGW is a single-chip power management ICs for battery-powered
> + portable devices. It integrates 5 buck converters, 8 LDOs, a boost driver
> + for LED and a 500 mA single-cell linear charger. Also included is a Coulomb
> + counter, a real-time clock (RTC), and a 32.768 kHz clock gate and two GPOs.
> +
> +properties:
> + compatible:
> + const: rohm,bd71815
> +
> + reg:
> + description:
> + I2C slave address.
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + gpio-controller: true
Add a blank line here.
> + "#gpio-cells":
> + const: 2
> + description: |
> + The first cell is the pin number and the second cell is used to specify
> + flags. See ../gpio/gpio.txt for more information.
> +
> + clocks:
> + maxItems: 1
And here.
> + "#clock-cells":
> + const: 0
And here.
> + clock-output-names:
> + const: bd71815-32k-out
> +
> + rohm,clkout-mode:
> + description: clk32kout mode. Can be set to "open-drain" or "cmos".
> + $ref: "/schemas/types.yaml#/definitions/string"
> + enum:
> + - open-drain
> + - cmos
> +
> + rohm,charger-sense-resistor-ohms:
> + minimum: 10000000
> + maximum: 50000000
> + description: |
> + BD71827 and BD71828 have SAR ADC for measuring charging currents.
> + External sense resistor (RSENSE in data sheet) should be used. If some
> + other but 30MOhm resistor is used the resistance value should be given
'something other'
Though this can be expressed as 'default: 30000000'
> + here in Ohms.
> +
> + regulators:
> + $ref: ../regulator/rohm,bd71815-regulator.yaml
This file needs to come first.
> + description:
> + List of child nodes that specify the regulators.
> +
> + gpio-reserved-ranges:
> + description: |
> + Usage of BD71828 GPIO pins can be changed via OTP. This property can be
> + used to mark the pins which should not be configured for GPIO. Please see
> + the ../gpio/gpio.txt for more information.
> +
> + rohm,enable-hidden-gpo:
> + description: |
> + The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the
> + data-sheet as it's location in the middle of GND pins makes it hard to
> + use on PCB. If your board has managed to use this pin you can enable the
> + second GPO by defining this property. Dont enable this if you are unsure
> + about how the E5 pin is connected on your board.
> + type: boolean
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clocks
> + - "#clock-cells"
> + - regulators
> + - gpio-controller
> + - "#gpio-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/leds/common.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pmic: pmic@4b {
> + compatible = "rohm,bd71815";
> + reg = <0x4b>;
> +
> + interrupt-parent = <&gpio1>;
> + interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
> +
> + clocks = <&osc 0>;
> + #clock-cells = <0>;
> + clock-output-names = "bd71815-32k-out";
> +
> + gpio-controller;
> + #gpio-cells = <2>;
> +
> + rohm,charger-sense-resistor-ohms = <10000000>;
> +
> + regulators {
> + buck1: buck1 {
> + regulator-name = "buck1";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <2000000>;
> + regulator-always-on;
> + regulator-ramp-delay = <1250>;
> + rohm,dvs-run-voltage = <1150000>;
> + rohm,dvs-suspend-voltage = <950000>;
> + };
> + buck2: buck2 {
> + regulator-name = "buck2";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <2000000>;
> + regulator-always-on;
> + regulator-ramp-delay = <1250>;
> + rohm,dvs-run-voltage = <1150000>;
> + rohm,dvs-suspend-voltage = <950000>;
> + };
> + buck3: buck3 {
> + regulator-name = "buck3";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <2700000>;
> + regulator-always-on;
> + };
> + buck4: buck4 {
> + regulator-name = "buck4";
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1850000>;
> + regulator-always-on;
> + };
> + buck5: buck5 {
> + regulator-name = "buck5";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + ldo1: ldo1 {
> + regulator-name = "ldo1";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + ldo2: ldo2 {
> + regulator-name = "ldo2";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + ldo3: ldo3 {
> + regulator-name = "ldo3";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + ldo4: ldo4 {
> + regulator-name = "ldo4";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + ldo5: ldo5 {
> + regulator-name = "ldo5";
> + regulator-min-microvolt = <800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + };
> + ldo6: ldodvref {
> + regulator-name = "ldodvref";
> + regulator-always-on;
> + };
> + ldo7: ldolpsr {
> + regulator-name = "ldolpsr";
> + regulator-always-on;
> + };
> +
> + boost: wled {
> + regulator-name = "wled";
> + regulator-min-microamp = <10>;
> + regulator-max-microamp = <25000>;
> + };
> + };
> + };
> + };
> --
> 2.25.4
>
>
> --
> Matti Vaittinen, Linux device drivers
> ROHM Semiconductors, Finland SWDC
> Kiviharjunlenkki 1E
> 90220 OULU
> FINLAND
>
> ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
> Simon says - in Latin please.
> ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
> Thanks to Simon Glass for the translation =]
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
2021-01-08 13:36 ` [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators Matti Vaittinen
@ 2021-01-11 19:09 ` Rob Herring
2021-01-12 6:10 ` Matti Vaittinen
0 siblings, 1 reply; 34+ messages in thread
From: Rob Herring @ 2021-01-11 19:09 UTC (permalink / raw)
To: Matti Vaittinen
Cc: mazziesaccount, Lee Jones, Liam Girdwood, Mark Brown,
Linus Walleij, devicetree, linux-kernel, linux-power, linux-gpio
On Fri, Jan 08, 2021 at 03:36:38PM +0200, Matti Vaittinen wrote:
> Add binding documentation for regulators on ROHM BD71815 PMIC.
> 5 bucks, 7 LDOs and a boost for LED.
>
> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> ---
> .../regulator/rohm,bd71815-regulator.yaml | 104 ++++++++++++++++++
> 1 file changed, 104 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
>
> diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
> new file mode 100644
> index 000000000000..2aa21603698c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
> @@ -0,0 +1,104 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ROHM BD71815 Power Management Integrated Circuit regulators
> +
> +maintainers:
> + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> +
> +description: |
> + This module is part of the ROHM BD718215 MFD device. For more details
> + see Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml.
> +
> + The regulator controller is represented as a sub-node of the PMIC node
> + on the device tree.
> +
> + The valid names for BD71815 regulator nodes are
> + buck1, buck2, buck3, buck4, buck5,
> + ldo1, ldo2, ldo3, ldo4, ldo5,
> + ldodvref, ldolpsr, wled
No schema for the last 3?
> +
> +patternProperties:
> + "^(ldo|buck)[1-5]$":
> + type: object
> + description:
> + Properties for single LDO/BUCK regulator.
> + $ref: regulator.yaml#
> +
> + properties:
> + regulator-name:
> + pattern: "^(ldo|buck)[1-5]$"
> + description:
> + should be "ldo1", ..., "ldo5" and "buck1", ..., "buck5"
> +
> + rohm,vsel-gpios:
> + description:
> + GPIO used to control ldo4 state (when ldo4 is controlled by GPIO).
> +
> + rohm,dvs-run-voltage:
These should have a unit suffix.
> + description:
> + PMIC "RUN" state voltage in uV when PMIC HW states are used. See
> + comments below for bucks/LDOs which support this. 0 means
> + regulator should be disabled at RUN state.
> + $ref: "/schemas/types.yaml#/definitions/uint32"
> + minimum: 0
> + maximum: 3300000
> +
> + rohm,dvs-snvs-voltage:
> + description:
> + Whether to keep regulator enabled at "SNVS" state or not.
> + 0 means regulator should be disabled at SNVS state, non zero voltage
> + keeps regulator enabled. BD71815 does not change voltage level
> + when PMIC transitions to SNVS.SNVS voltage depends on the previous
> + state (from which the PMIC transitioned to SNVS).
> + $ref: "/schemas/types.yaml#/definitions/uint32"
> + minimum: 0
> + maximum: 3300000
> +
> + rohm,dvs-suspend-voltage:
> + description:
> + PMIC "SUSPEND" state voltage in uV when PMIC HW states are used. See
> + comments below for bucks/LDOs which support this. 0 means
> + regulator should be disabled at SUSPEND state.
> + $ref: "/schemas/types.yaml#/definitions/uint32"
> + minimum: 0
> + maximum: 3300000
> +
> + rohm,dvs-lpsr-voltage:
> + description:
> + PMIC "LPSR" state voltage in uV when PMIC HW states are used. See
> + comments below for bucks/LDOs which support this. 0 means
> + regulator should be disabled at LPSR state.
> + $ref: "/schemas/types.yaml#/definitions/uint32"
> + minimum: 0
> + maximum: 3300000
> +
> + # Bucks 1 and 2 support giving separate voltages for operational states
> + # (RUN /CLEAN according to data-sheet) and non operational states
> + # (LPSR/SUSPEND). The voltage is automatically changed when HW
> + # state changes. Omitting these properties from bucks 1 and 2 leave
> + # buck voltages to not be toggled by HW state. Enable status may still
> + # be toggled by state changes depending on HW default settings.
> + #
> + # Bucks 3-5 and ldos 1-5 support setting the RUN state voltage here.
> + # Given RUN voltage is used at all states if regulator is enabled at
> + # given state.
> + # Values given for other states are regarded as enable/disable at
> + # given state (see below).
> + #
> + # All regulators except WLED support specifying enable/disable status
> + # for each of the HW states (RUN/SNVS/SUSPEND/LPSR). HW defaults can
> + # be overridden by setting voltage to 0 (regulator disabled at given
> + # state) or non-zero (regulator enabled at given state). Please note
> + # that setting non zero voltages for bucks 1/2 will also enable voltage
> + # changes according to state change.
> +
> + required:
> + - regulator-name
> +
> + unevaluatedProperties: false
> +
> +additionalProperties: false
> --
> 2.25.4
>
>
> --
> Matti Vaittinen, Linux device drivers
> ROHM Semiconductors, Finland SWDC
> Kiviharjunlenkki 1E
> 90220 OULU
> FINLAND
>
> ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
> Simon says - in Latin please.
> ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
> Thanks to Simon Glass for the translation =]
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
2021-01-11 19:09 ` Rob Herring
@ 2021-01-12 6:10 ` Matti Vaittinen
2021-01-13 13:53 ` Rob Herring
0 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-12 6:10 UTC (permalink / raw)
To: Rob Herring
Cc: Lee Jones, Liam Girdwood, Mark Brown, Linus Walleij, devicetree,
linux-kernel, linux-power, linux-gpio
On Mon, 2021-01-11 at 13:09 -0600, Rob Herring wrote:
> On Fri, Jan 08, 2021 at 03:36:38PM +0200, Matti Vaittinen wrote:
> > Add binding documentation for regulators on ROHM BD71815 PMIC.
> > 5 bucks, 7 LDOs and a boost for LED.
> >
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > ---
> > .../regulator/rohm,bd71815-regulator.yaml | 104
> > ++++++++++++++++++
> > 1 file changed, 104 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > regulator.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > regulator.yaml
> > b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > regulator.yaml
> > new file mode 100644
> > index 000000000000..2aa21603698c
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > regulator.yaml
> > @@ -0,0 +1,104 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id:
> > http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ROHM BD71815 Power Management Integrated Circuit regulators
> > +
> > +maintainers:
> > + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > +
> > +description: |
> > + This module is part of the ROHM BD718215 MFD device. For more
> > details
> > + see Documentation/devicetree/bindings/mfd/rohm,bd71815-
> > pmic.yaml.
> > +
> > + The regulator controller is represented as a sub-node of the
> > PMIC node
> > + on the device tree.
> > +
> > + The valid names for BD71815 regulator nodes are
> > + buck1, buck2, buck3, buck4, buck5,
> > + ldo1, ldo2, ldo3, ldo4, ldo5,
> > + ldodvref, ldolpsr, wled
>
> No schema for the last 3?
Thanks Rob. I'm unsure what I have been thinking of :( I'll fix this
for next version.
>
> > +
> > +patternProperties:
> > + "^(ldo|buck)[1-5]$":
> > + type: object
> > + description:
> > + Properties for single LDO/BUCK regulator.
> > + $ref: regulator.yaml#
> > +
> > + properties:
> > + regulator-name:
> > + pattern: "^(ldo|buck)[1-5]$"
> > + description:
> > + should be "ldo1", ..., "ldo5" and "buck1", ..., "buck5"
> > +
> > + rohm,vsel-gpios:
> > + description:
> > + GPIO used to control ldo4 state (when ldo4 is controlled
> > by GPIO).
> > +
> > + rohm,dvs-run-voltage:
>
> These should have a unit suffix.
I know but these are existing properties. I'd like to re-use them as
they have exported parser helpers - and I am unsure what kind of
breakages changing them would cause. (The BD71837/BD71847 which
introduced these properties are one of the PMICs which are pretty
widely used.)
Best Regards
Matti Vaittinen
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC
2021-01-11 19:06 ` Rob Herring
@ 2021-01-12 6:14 ` Vaittinen, Matti
0 siblings, 0 replies; 34+ messages in thread
From: Vaittinen, Matti @ 2021-01-12 6:14 UTC (permalink / raw)
To: robh
Cc: linux-gpio, linux-rtc, linux-clk, a.zummo, broonie, sboyd,
linus.walleij, bgolaszewski, lee.jones, linux-power,
alexandre.belloni, lgirdwood, mturquette, linux-kernel,
devicetree
On Mon, 2021-01-11 at 13:06 -0600, Rob Herring wrote:
> On Fri, Jan 08, 2021 at 03:34:52PM +0200, Matti Vaittinen wrote:
> > Document DT bindings for ROHM BD71815.
> >
> > BD71815 is a single-chip power management IC mainly for battery-
> > powered
> > portable devices. The IC integrates 5 bucks, 7 LDOs, a boost driver
> > for
> > LED, a battery charger with a Coulomb counter, a real-time clock, a
> > 32kHz
> > clock and two general-purpose outputs although only one is
> > documented by
> > the data-sheet.
> >
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > ---
> > .../bindings/mfd/rohm,bd71815-pmic.yaml | 198
> > ++++++++++++++++++
> > 1 file changed, 198 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71815-
> > pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71815-
> > pmic.yaml
> > new file mode 100644
> > index 000000000000..2206b2008acd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
> > @@ -0,0 +1,198 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ROHM BD71815 Power Management Integrated Circuit bindings
> > +
> > +maintainers:
> > + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > +
> > +description: |
> > + BD71815AGW is a single-chip power management ICs for battery-
> > powered
> > + portable devices. It integrates 5 buck converters, 8 LDOs, a
> > boost driver
> > + for LED and a 500 mA single-cell linear charger. Also included
> > is a Coulomb
> > + counter, a real-time clock (RTC), and a 32.768 kHz clock gate
> > and two GPOs.
> > +
> > +properties:
> > + compatible:
> > + const: rohm,bd71815
> > +
> > + reg:
> > + description:
> > + I2C slave address.
> > + maxItems: 1
> > +
> > + interrupts:
> > + maxItems: 1
> > +
> > + gpio-controller: true
>
> Add a blank line here.
>
> > + "#gpio-cells":
> > + const: 2
> > + description: |
> > + The first cell is the pin number and the second cell is used
> > to specify
> > + flags. See ../gpio/gpio.txt for more information.
> > +
> > + clocks:
> > + maxItems: 1
>
> And here.
>
> > + "#clock-cells":
> > + const: 0
>
> And here.
>
> > + clock-output-names:
> > + const: bd71815-32k-out
> > +
> > + rohm,clkout-mode:
> > + description: clk32kout mode. Can be set to "open-drain" or
> > "cmos".
> > + $ref: "/schemas/types.yaml#/definitions/string"
> > + enum:
> > + - open-drain
> > + - cmos
> > +
> > + rohm,charger-sense-resistor-ohms:
> > + minimum: 10000000
> > + maximum: 50000000
> > + description: |
> > + BD71827 and BD71828 have SAR ADC for measuring charging
> > currents.
> > + External sense resistor (RSENSE in data sheet) should be
> > used. If some
> > + other but 30MOhm resistor is used the resistance value
> > should be given
>
> 'something other'
>
> Though this can be expressed as 'default: 30000000'
I guess I'll use both 'something other' and 'default: 30000000' in next
version. 'default: 30000000' is nice for machine parser - but for human
reader the 'something other' is likely to be superior. (No scientific
test conducted to back off this statement though).
Thanks Rob!
Best Regards
Matti Vaittinen
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 04/15] dt_bindings: bd71828: Add clock output mode
2021-01-08 13:34 ` [PATCH 04/15] dt_bindings: bd71828: Add clock output mode Matti Vaittinen
@ 2021-01-13 13:52 ` Rob Herring
2021-01-13 14:52 ` Matti Vaittinen
0 siblings, 1 reply; 34+ messages in thread
From: Rob Herring @ 2021-01-13 13:52 UTC (permalink / raw)
To: Matti Vaittinen
Cc: mazziesaccount, Lee Jones, Michael Turquette, Stephen Boyd,
Linus Walleij, devicetree, linux-kernel, linux-power, linux-clk
On Fri, Jan 08, 2021 at 03:34:16PM +0200, Matti Vaittinen wrote:
> The BD71828 allows configuring the clk32kout pin mode to CMOS or
> open-drain. Add device-tree property for specifying the preferred mode.
>
> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> ---
> .../devicetree/bindings/mfd/rohm,bd71828-pmic.yaml | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> index 3a6a1a26e2b3..cba085836bc0 100644
> --- a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> @@ -44,6 +44,13 @@ properties:
> clock-output-names:
> const: bd71828-32k-out
>
> + rohm,clkout-mode:
> + description: clk32kout mode. Can be set to "open-drain" or "cmos".
> + $ref: "/schemas/types.yaml#/definitions/string"
> + enum:
> + - open-drain
> + - cmos
> +
I think a boolean or tristate ((0/1/not present) if you need 'leave
default') would be better.
> rohm,charger-sense-resistor-ohms:
> minimum: 10000000
> maximum: 50000000
> --
> 2.25.4
>
>
> --
> Matti Vaittinen, Linux device drivers
> ROHM Semiconductors, Finland SWDC
> Kiviharjunlenkki 1E
> 90220 OULU
> FINLAND
>
> ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
> Simon says - in Latin please.
> ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
> Thanks to Simon Glass for the translation =]
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
2021-01-12 6:10 ` Matti Vaittinen
@ 2021-01-13 13:53 ` Rob Herring
2021-01-13 14:23 ` Vaittinen, Matti
0 siblings, 1 reply; 34+ messages in thread
From: Rob Herring @ 2021-01-13 13:53 UTC (permalink / raw)
To: Matti Vaittinen
Cc: Lee Jones, Liam Girdwood, Mark Brown, Linus Walleij, devicetree,
linux-kernel, linux-power, linux-gpio
On Tue, Jan 12, 2021 at 08:10:14AM +0200, Matti Vaittinen wrote:
>
> On Mon, 2021-01-11 at 13:09 -0600, Rob Herring wrote:
> > On Fri, Jan 08, 2021 at 03:36:38PM +0200, Matti Vaittinen wrote:
> > > Add binding documentation for regulators on ROHM BD71815 PMIC.
> > > 5 bucks, 7 LDOs and a boost for LED.
> > >
> > > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > > ---
> > > .../regulator/rohm,bd71815-regulator.yaml | 104
> > > ++++++++++++++++++
> > > 1 file changed, 104 insertions(+)
> > > create mode 100644
> > > Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > regulator.yaml
> > >
> > > diff --git
> > > a/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > regulator.yaml
> > > b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > regulator.yaml
> > > new file mode 100644
> > > index 000000000000..2aa21603698c
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > regulator.yaml
> > > @@ -0,0 +1,104 @@
> > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > > +%YAML 1.2
> > > +---
> > > +$id:
> > > http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: ROHM BD71815 Power Management Integrated Circuit regulators
> > > +
> > > +maintainers:
> > > + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > > +
> > > +description: |
> > > + This module is part of the ROHM BD718215 MFD device. For more
> > > details
> > > + see Documentation/devicetree/bindings/mfd/rohm,bd71815-
> > > pmic.yaml.
> > > +
> > > + The regulator controller is represented as a sub-node of the
> > > PMIC node
> > > + on the device tree.
> > > +
> > > + The valid names for BD71815 regulator nodes are
> > > + buck1, buck2, buck3, buck4, buck5,
> > > + ldo1, ldo2, ldo3, ldo4, ldo5,
> > > + ldodvref, ldolpsr, wled
> >
> > No schema for the last 3?
>
> Thanks Rob. I'm unsure what I have been thinking of :( I'll fix this
> for next version.
>
> >
> > > +
> > > +patternProperties:
> > > + "^(ldo|buck)[1-5]$":
> > > + type: object
> > > + description:
> > > + Properties for single LDO/BUCK regulator.
> > > + $ref: regulator.yaml#
> > > +
> > > + properties:
> > > + regulator-name:
> > > + pattern: "^(ldo|buck)[1-5]$"
> > > + description:
> > > + should be "ldo1", ..., "ldo5" and "buck1", ..., "buck5"
> > > +
> > > + rohm,vsel-gpios:
> > > + description:
> > > + GPIO used to control ldo4 state (when ldo4 is controlled
> > > by GPIO).
> > > +
> > > + rohm,dvs-run-voltage:
> >
> > These should have a unit suffix.
>
> I know but these are existing properties. I'd like to re-use them as
> they have exported parser helpers - and I am unsure what kind of
> breakages changing them would cause. (The BD71837/BD71847 which
> introduced these properties are one of the PMICs which are pretty
> widely used.)
Okay. Hopefully I remember next time I see this...
Rob
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
2021-01-13 13:53 ` Rob Herring
@ 2021-01-13 14:23 ` Vaittinen, Matti
2021-01-13 15:47 ` Rob Herring
0 siblings, 1 reply; 34+ messages in thread
From: Vaittinen, Matti @ 2021-01-13 14:23 UTC (permalink / raw)
To: robh
Cc: broonie, lee.jones, linux-power, linux-gpio, linux-kernel,
linus.walleij, lgirdwood, devicetree
On Wed, 2021-01-13 at 07:53 -0600, Rob Herring wrote:
> On Tue, Jan 12, 2021 at 08:10:14AM +0200, Matti Vaittinen wrote:
> > On Mon, 2021-01-11 at 13:09 -0600, Rob Herring wrote:
> > > On Fri, Jan 08, 2021 at 03:36:38PM +0200, Matti Vaittinen wrote:
> > > > Add binding documentation for regulators on ROHM BD71815 PMIC.
> > > > 5 bucks, 7 LDOs and a boost for LED.
> > > >
> > > > Signed-off-by: Matti Vaittinen <
> > > > matti.vaittinen@fi.rohmeurope.com>
> > > > ---
> > > > .../regulator/rohm,bd71815-regulator.yaml | 104
> > > > ++++++++++++++++++
> > > > 1 file changed, 104 insertions(+)
> > > > create mode 100644
> > > > Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > regulator.yaml
> > > >
> > > > diff --git
> > > > a/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > regulator.yaml
> > > > b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > regulator.yaml
> > > > new file mode 100644
> > > > index 000000000000..2aa21603698c
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > regulator.yaml
> > > > @@ -0,0 +1,104 @@
> > > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > > > +%YAML 1.2
> > > > +---
> > > > +$id:
> > > > http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: ROHM BD71815 Power Management Integrated Circuit
> > > > regulators
> > > > +
> > > > +maintainers:
> > > > + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > > > +
> > > > +description: |
> > > > + This module is part of the ROHM BD718215 MFD device. For
> > > > more
> > > > details
> > > > + see Documentation/devicetree/bindings/mfd/rohm,bd71815-
> > > > pmic.yaml.
> > > > +
> > > > + The regulator controller is represented as a sub-node of the
> > > > PMIC node
> > > > + on the device tree.
> > > > +
> > > > + The valid names for BD71815 regulator nodes are
> > > > + buck1, buck2, buck3, buck4, buck5,
> > > > + ldo1, ldo2, ldo3, ldo4, ldo5,
> > > > + ldodvref, ldolpsr, wled
> > >
> > > No schema for the last 3?
> >
> > Thanks Rob. I'm unsure what I have been thinking of :( I'll fix
> > this
> > for next version.
> >
> > > > +
> > > > +patternProperties:
> > > > + "^(ldo|buck)[1-5]$":
> > > > + type: object
> > > > + description:
> > > > + Properties for single LDO/BUCK regulator.
> > > > + $ref: regulator.yaml#
> > > > +
> > > > + properties:
> > > > + regulator-name:
> > > > + pattern: "^(ldo|buck)[1-5]$"
> > > > + description:
> > > > + should be "ldo1", ..., "ldo5" and "buck1", ...,
> > > > "buck5"
> > > > +
> > > > + rohm,vsel-gpios:
> > > > + description:
> > > > + GPIO used to control ldo4 state (when ldo4 is
> > > > controlled
> > > > by GPIO).
> > > > +
> > > > + rohm,dvs-run-voltage:
> > >
> > > These should have a unit suffix.
> >
> > I know but these are existing properties. I'd like to re-use them
> > as
> > they have exported parser helpers - and I am unsure what kind of
> > breakages changing them would cause. (The BD71837/BD71847 which
> > introduced these properties are one of the PMICs which are pretty
> > widely used.)
>
> Okay. Hopefully I remember next time I see this...
Actually, I think I can add support for rohm,dvs-run-microvolt and
fellows to these same helpers so new devices can use appropriately
named properties. That would mean there is duplicate properties for
same purpose - but maybe it allows us to eventually deprecate the old
ones... Which of these options would you prefer?
>
> Rob
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 04/15] dt_bindings: bd71828: Add clock output mode
2021-01-13 13:52 ` Rob Herring
@ 2021-01-13 14:52 ` Matti Vaittinen
2021-01-13 15:52 ` Rob Herring
0 siblings, 1 reply; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-13 14:52 UTC (permalink / raw)
To: Rob Herring
Cc: Lee Jones, Michael Turquette, Stephen Boyd, Linus Walleij,
devicetree, linux-kernel, linux-power, linux-clk
On Wed, 2021-01-13 at 07:52 -0600, Rob Herring wrote:
> On Fri, Jan 08, 2021 at 03:34:16PM +0200, Matti Vaittinen wrote:
> > The BD71828 allows configuring the clk32kout pin mode to CMOS or
> > open-drain. Add device-tree property for specifying the preferred
> > mode.
> >
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > ---
> > .../devicetree/bindings/mfd/rohm,bd71828-pmic.yaml | 7
> > +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71828-
> > pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71828-
> > pmic.yaml
> > index 3a6a1a26e2b3..cba085836bc0 100644
> > --- a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> > +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> > @@ -44,6 +44,13 @@ properties:
> > clock-output-names:
> > const: bd71828-32k-out
> >
> > + rohm,clkout-mode:
> > + description: clk32kout mode. Can be set to "open-drain" or
> > "cmos".
> > + $ref: "/schemas/types.yaml#/definitions/string"
> > + enum:
> > + - open-drain
> > + - cmos
> > +
>
> I think a boolean or tristate ((0/1/not present) if you need 'leave
> default') would be better.
I was thinking of boolean but I hit the exact problem of leaving the
default. (Booleans are so tempting for a lazy coder like me :] ) Do you
mean uint with allowed values of 0/1 with the tristated? I can sure do
that - but wouldn't open-drain / cmos be more descriptive?
Best Regards
Matti Vaittinen
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators
2021-01-13 14:23 ` Vaittinen, Matti
@ 2021-01-13 15:47 ` Rob Herring
0 siblings, 0 replies; 34+ messages in thread
From: Rob Herring @ 2021-01-13 15:47 UTC (permalink / raw)
To: Vaittinen, Matti
Cc: broonie, lee.jones, linux-power, linux-gpio, linux-kernel,
linus.walleij, lgirdwood, devicetree
On Wed, Jan 13, 2021 at 8:23 AM Vaittinen, Matti
<Matti.Vaittinen@fi.rohmeurope.com> wrote:
>
>
> On Wed, 2021-01-13 at 07:53 -0600, Rob Herring wrote:
> > On Tue, Jan 12, 2021 at 08:10:14AM +0200, Matti Vaittinen wrote:
> > > On Mon, 2021-01-11 at 13:09 -0600, Rob Herring wrote:
> > > > On Fri, Jan 08, 2021 at 03:36:38PM +0200, Matti Vaittinen wrote:
> > > > > Add binding documentation for regulators on ROHM BD71815 PMIC.
> > > > > 5 bucks, 7 LDOs and a boost for LED.
> > > > >
> > > > > Signed-off-by: Matti Vaittinen <
> > > > > matti.vaittinen@fi.rohmeurope.com>
> > > > > ---
> > > > > .../regulator/rohm,bd71815-regulator.yaml | 104
> > > > > ++++++++++++++++++
> > > > > 1 file changed, 104 insertions(+)
> > > > > create mode 100644
> > > > > Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > > regulator.yaml
> > > > >
> > > > > diff --git
> > > > > a/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > > regulator.yaml
> > > > > b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > > regulator.yaml
> > > > > new file mode 100644
> > > > > index 000000000000..2aa21603698c
> > > > > --- /dev/null
> > > > > +++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-
> > > > > regulator.yaml
> > > > > @@ -0,0 +1,104 @@
> > > > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > > > > +%YAML 1.2
> > > > > +---
> > > > > +$id:
> > > > > http://devicetree.org/schemas/regulator/rohm,bd71815-regulator.yaml#
> > > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > > +
> > > > > +title: ROHM BD71815 Power Management Integrated Circuit
> > > > > regulators
> > > > > +
> > > > > +maintainers:
> > > > > + - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > > > > +
> > > > > +description: |
> > > > > + This module is part of the ROHM BD718215 MFD device. For
> > > > > more
> > > > > details
> > > > > + see Documentation/devicetree/bindings/mfd/rohm,bd71815-
> > > > > pmic.yaml.
> > > > > +
> > > > > + The regulator controller is represented as a sub-node of the
> > > > > PMIC node
> > > > > + on the device tree.
> > > > > +
> > > > > + The valid names for BD71815 regulator nodes are
> > > > > + buck1, buck2, buck3, buck4, buck5,
> > > > > + ldo1, ldo2, ldo3, ldo4, ldo5,
> > > > > + ldodvref, ldolpsr, wled
> > > >
> > > > No schema for the last 3?
> > >
> > > Thanks Rob. I'm unsure what I have been thinking of :( I'll fix
> > > this
> > > for next version.
> > >
> > > > > +
> > > > > +patternProperties:
> > > > > + "^(ldo|buck)[1-5]$":
> > > > > + type: object
> > > > > + description:
> > > > > + Properties for single LDO/BUCK regulator.
> > > > > + $ref: regulator.yaml#
> > > > > +
> > > > > + properties:
> > > > > + regulator-name:
> > > > > + pattern: "^(ldo|buck)[1-5]$"
> > > > > + description:
> > > > > + should be "ldo1", ..., "ldo5" and "buck1", ...,
> > > > > "buck5"
> > > > > +
> > > > > + rohm,vsel-gpios:
> > > > > + description:
> > > > > + GPIO used to control ldo4 state (when ldo4 is
> > > > > controlled
> > > > > by GPIO).
> > > > > +
> > > > > + rohm,dvs-run-voltage:
> > > >
> > > > These should have a unit suffix.
> > >
> > > I know but these are existing properties. I'd like to re-use them
> > > as
> > > they have exported parser helpers - and I am unsure what kind of
> > > breakages changing them would cause. (The BD71837/BD71847 which
> > > introduced these properties are one of the PMICs which are pretty
> > > widely used.)
> >
> > Okay. Hopefully I remember next time I see this...
>
> Actually, I think I can add support for rohm,dvs-run-microvolt and
> fellows to these same helpers so new devices can use appropriately
> named properties. That would mean there is duplicate properties for
> same purpose - but maybe it allows us to eventually deprecate the old
> ones... Which of these options would you prefer?
Just keep the existing ones.
Rob
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 04/15] dt_bindings: bd71828: Add clock output mode
2021-01-13 14:52 ` Matti Vaittinen
@ 2021-01-13 15:52 ` Rob Herring
0 siblings, 0 replies; 34+ messages in thread
From: Rob Herring @ 2021-01-13 15:52 UTC (permalink / raw)
To: Matti Vaittinen
Cc: Lee Jones, Michael Turquette, Stephen Boyd, Linus Walleij,
devicetree, linux-kernel, linux-power, linux-clk
On Wed, Jan 13, 2021 at 8:52 AM Matti Vaittinen
<matti.vaittinen@fi.rohmeurope.com> wrote:
>
>
> On Wed, 2021-01-13 at 07:52 -0600, Rob Herring wrote:
> > On Fri, Jan 08, 2021 at 03:34:16PM +0200, Matti Vaittinen wrote:
> > > The BD71828 allows configuring the clk32kout pin mode to CMOS or
> > > open-drain. Add device-tree property for specifying the preferred
> > > mode.
> > >
> > > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > > ---
> > > .../devicetree/bindings/mfd/rohm,bd71828-pmic.yaml | 7
> > > +++++++
> > > 1 file changed, 7 insertions(+)
> > >
> > > diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71828-
> > > pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71828-
> > > pmic.yaml
> > > index 3a6a1a26e2b3..cba085836bc0 100644
> > > --- a/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> > > +++ b/Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml
> > > @@ -44,6 +44,13 @@ properties:
> > > clock-output-names:
> > > const: bd71828-32k-out
> > >
> > > + rohm,clkout-mode:
> > > + description: clk32kout mode. Can be set to "open-drain" or
> > > "cmos".
> > > + $ref: "/schemas/types.yaml#/definitions/string"
> > > + enum:
> > > + - open-drain
> > > + - cmos
> > > +
> >
> > I think a boolean or tristate ((0/1/not present) if you need 'leave
> > default') would be better.
>
> I was thinking of boolean but I hit the exact problem of leaving the
> default. (Booleans are so tempting for a lazy coder like me :] ) Do you
> mean uint with allowed values of 0/1 with the tristated?
Yes.
> I can sure do
> that - but wouldn't open-drain / cmos be more descriptive?
You'd get at least half by naming it 'rohm,clkout-open-drain'. I think
anyone that knows what open-drain means will know what !open-drain
implies.
Rob
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support
2021-01-08 13:42 ` [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support Matti Vaittinen
@ 2021-01-15 8:26 ` Lee Jones
2021-01-15 9:10 ` Vaittinen, Matti
2021-01-15 9:48 ` Matti Vaittinen
0 siblings, 2 replies; 34+ messages in thread
From: Lee Jones @ 2021-01-15 8:26 UTC (permalink / raw)
To: Matti Vaittinen
Cc: mazziesaccount, Liam Girdwood, Mark Brown, linux-kernel, linux-power
On Fri, 08 Jan 2021, Matti Vaittinen wrote:
> The helper for obtaining HW-state based DVS voltage levels currently only
> works for regulators using linear-ranges. Extend support to regulators with
> simple linear mappings and add also proper error path if pickable-ranges
> regulators call this.
>
> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> ---
> drivers/regulator/rohm-regulator.c | 23 +++++++++++++++++++++--
> include/linux/mfd/rohm-generic.h | 6 +++++-
> 2 files changed, 26 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/regulator/rohm-regulator.c b/drivers/regulator/rohm-regulator.c
> index 399002383b28..9248bd63afa9 100644
> --- a/drivers/regulator/rohm-regulator.c
> +++ b/drivers/regulator/rohm-regulator.c
> @@ -22,13 +22,26 @@ static int set_dvs_level(const struct regulator_desc *desc,
> return ret;
> return 0;
> }
> -
> + /* If voltage is set to 0 => disable */
> if (uv == 0) {
> if (omask)
> return regmap_update_bits(regmap, oreg, omask, 0);
> }
> + /* Some setups don't allow setting own voltage but do allow enabling */
> + if (!mask) {
> + if (omask)
> + return regmap_update_bits(regmap, oreg, omask, omask);
> +
> + return -EINVAL;
> + }
> for (i = 0; i < desc->n_voltages; i++) {
> - ret = regulator_desc_list_voltage_linear_range(desc, i);
> + /* NOTE to next hacker - Does not support pickable ranges */
> + if (desc->linear_range_selectors)
> + return -EINVAL;
> + if (desc->n_linear_ranges)
> + ret = regulator_desc_list_voltage_linear_range(desc, i);
> + else
> + ret = regulator_desc_list_voltage_linear(desc, i);
> if (ret < 0)
> continue;
> if (ret == uv) {
> @@ -79,6 +92,12 @@ int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
> mask = dvs->lpsr_mask;
> omask = dvs->lpsr_on_mask;
> break;
> + case ROHM_DVS_LEVEL_SNVS:
> + prop = "rohm,dvs-snvs-voltage";
> + reg = dvs->snvs_reg;
> + mask = dvs->snvs_mask;
> + omask = dvs->snvs_on_mask;
> + break;
> default:
> return -EINVAL;
> }
> diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
> index e99e569d3cc1..2f5fbfd0c6b3 100644
> --- a/include/linux/mfd/rohm-generic.h
> +++ b/include/linux/mfd/rohm-generic.h
> @@ -27,7 +27,8 @@ enum {
> ROHM_DVS_LEVEL_IDLE,
> ROHM_DVS_LEVEL_SUSPEND,
> ROHM_DVS_LEVEL_LPSR,
> - ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_LPSR,
> + ROHM_DVS_LEVEL_SNVS,
> + ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS,
> };
Does this actually work?
The code that consumes it looks like:
for (i = 0; i < ROHM_DVS_LEVEL_MAX && !ret; i++)
So it will loop through like:
0 (ROHM_DVS_LEVEL_IDLE)
1 (ROHM_DVS_LEVEL_SUSPEND)
2 (ROHM_DVS_LEVEL_LPSR)
3 (ROHM_DVS_LEVEL_SNVS)
Then break, since 'i' will be (== 4) not (< 4).
So the following will never be used:
4 (ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS)
Unless I'm missing something, I think MAX should be the last entry.
> /**
> @@ -66,6 +67,9 @@ struct rohm_dvs_config {
> unsigned int lpsr_reg;
> unsigned int lpsr_mask;
> unsigned int lpsr_on_mask;
> + unsigned int snvs_reg;
> + unsigned int snvs_mask;
> + unsigned int snvs_on_mask;
> };
>
> #if IS_ENABLED(CONFIG_REGULATOR_ROHM)
--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support
2021-01-15 8:26 ` Lee Jones
@ 2021-01-15 9:10 ` Vaittinen, Matti
2021-01-15 9:48 ` Matti Vaittinen
1 sibling, 0 replies; 34+ messages in thread
From: Vaittinen, Matti @ 2021-01-15 9:10 UTC (permalink / raw)
To: lee.jones; +Cc: lgirdwood, linux-power, broonie, linux-kernel
Hello Lee,
Thanks for carefull review! I do appreciate this!
On Fri, 2021-01-15 at 08:26 +0000, Lee Jones wrote:
> On Fri, 08 Jan 2021, Matti Vaittinen wrote:
>
> > The helper for obtaining HW-state based DVS voltage levels
> > currently only
> > works for regulators using linear-ranges. Extend support to
> > regulators with
> > simple linear mappings and add also proper error path if pickable-
> > ranges
> > regulators call this.
> >
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > ---
> > @@ -27,7 +27,8 @@ enum {
> > ROHM_DVS_LEVEL_IDLE,
> > ROHM_DVS_LEVEL_SUSPEND,
> > ROHM_DVS_LEVEL_LPSR,
> > - ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_LPSR,
> > + ROHM_DVS_LEVEL_SNVS,
> > + ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS,
> > };
>
> Does this actually work?
>
> The code that consumes it looks like:
>
> for (i = 0; i < ROHM_DVS_LEVEL_MAX && !ret; i++)
>
> So it will loop through like:
>
> 0 (ROHM_DVS_LEVEL_IDLE)
> 1 (ROHM_DVS_LEVEL_SUSPEND)
> 2 (ROHM_DVS_LEVEL_LPSR)
> 3 (ROHM_DVS_LEVEL_SNVS)
>
> Then break, since 'i' will be (== 4) not (< 4).
>
> So the following will never be used:
>
> 4 (ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS)
>
> Unless I'm missing something, I think MAX should be the last entry.
Good catch. I think you are correct. I will revise this for next
version (and add also fixes tag as it seems the current code is broken
for LPSR).
>
> > /**
> > @@ -66,6 +67,9 @@ struct rohm_dvs_config {
> > unsigned int lpsr_reg;
> > unsigned int lpsr_mask;
> > unsigned int lpsr_on_mask;
> > + unsigned int snvs_reg;
> > + unsigned int snvs_mask;
> > + unsigned int snvs_on_mask;
> > };
> >
> > #if IS_ENABLED(CONFIG_REGULATOR_ROHM)
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support
2021-01-15 8:26 ` Lee Jones
2021-01-15 9:10 ` Vaittinen, Matti
@ 2021-01-15 9:48 ` Matti Vaittinen
1 sibling, 0 replies; 34+ messages in thread
From: Matti Vaittinen @ 2021-01-15 9:48 UTC (permalink / raw)
To: Lee Jones; +Cc: Liam Girdwood, Mark Brown, linux-kernel, linux-power
Hello All,
On Fri, 2021-01-15 at 08:26 +0000, Lee Jones wrote:
> On Fri, 08 Jan 2021, Matti Vaittinen wrote:
>
> > The helper for obtaining HW-state based DVS voltage levels
> > currently only
> > works for regulators using linear-ranges. Extend support to
> > regulators with
> > simple linear mappings and add also proper error path if pickable-
> > ranges
> > regulators call this.
> >
> > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > ---
> > drivers/regulator/rohm-regulator.c | 23 +++++++++++++++++++++--
> > include/linux/mfd/rohm-generic.h | 6 +++++-
> > 2 files changed, 26 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/regulator/rohm-regulator.c
> > b/drivers/regulator/rohm-regulator.c
> > index 399002383b28..9248bd63afa9 100644
> > --- a/drivers/regulator/rohm-regulator.c
> > +++ b/drivers/regulator/rohm-regulator.c
> > @@ -22,13 +22,26 @@ static int set_dvs_level(const struct
> > regulator_desc *desc,
> > return ret;
> > return 0;
> > }
> > -
> > + /* If voltage is set to 0 => disable */
> > if (uv == 0) {
> > if (omask)
> > return regmap_update_bits(regmap, oreg, omask,
> > 0);
> > }
> > + /* Some setups don't allow setting own voltage but do allow
> > enabling */
> > + if (!mask) {
> > + if (omask)
> > + return regmap_update_bits(regmap, oreg, omask,
> > omask);
> > +
> > + return -EINVAL;
> > + }
> > for (i = 0; i < desc->n_voltages; i++) {
> > - ret = regulator_desc_list_voltage_linear_range(desc,
> > i);
> > + /* NOTE to next hacker - Does not support pickable
> > ranges */
> > + if (desc->linear_range_selectors)
> > + return -EINVAL;
> > + if (desc->n_linear_ranges)
> > + ret =
> > regulator_desc_list_voltage_linear_range(desc, i);
> > + else
> > + ret = regulator_desc_list_voltage_linear(desc,
> > i);
> > if (ret < 0)
> > continue;
> > if (ret == uv) {
> > @@ -79,6 +92,12 @@ int rohm_regulator_set_dvs_levels(const struct
> > rohm_dvs_config *dvs,
> > mask = dvs->lpsr_mask;
> > omask = dvs->lpsr_on_mask;
> > break;
> > + case ROHM_DVS_LEVEL_SNVS:
> > + prop = "rohm,dvs-snvs-voltage";
> > + reg = dvs->snvs_reg;
> > + mask = dvs->snvs_mask;
> > + omask = dvs->snvs_on_mask;
> > + break;
> > default:
> > return -EINVAL;
> > }
> > diff --git a/include/linux/mfd/rohm-generic.h
> > b/include/linux/mfd/rohm-generic.h
> > index e99e569d3cc1..2f5fbfd0c6b3 100644
> > --- a/include/linux/mfd/rohm-generic.h
> > +++ b/include/linux/mfd/rohm-generic.h
> > @@ -27,7 +27,8 @@ enum {
> > ROHM_DVS_LEVEL_IDLE,
> > ROHM_DVS_LEVEL_SUSPEND,
> > ROHM_DVS_LEVEL_LPSR,
> > - ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_LPSR,
> > + ROHM_DVS_LEVEL_SNVS,
> > + ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS,
> > };
>
> Does this actually work?
>
> The code that consumes it looks like:
>
> for (i = 0; i < ROHM_DVS_LEVEL_MAX && !ret; i++)
>
> So it will loop through like:
>
> 0 (ROHM_DVS_LEVEL_IDLE)
> 1 (ROHM_DVS_LEVEL_SUSPEND)
> 2 (ROHM_DVS_LEVEL_LPSR)
> 3 (ROHM_DVS_LEVEL_SNVS)
>
> Then break, since 'i' will be (== 4) not (< 4).
>
> So the following will never be used:
>
> 4 (ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_SNVS)
>
> Unless I'm missing something, I think MAX should be the last entry.
I did some further digging. The first enum member is
ROHM_DVS_LEVEL_UNKNOWN => first valid value is 1 (ROHM_DVS_LEVEL_RUN).
=> logic for this part was correct.
But I think there is a problem in how these enum values are used!
for example at bd718x7_regulator.c
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND
This works for values 1 & 2 - but fails miserably for 3...
I see these levels are also used by various boards - so I wonder how
they have worked - and I wonder if fixing this will cause problems...
I will any way send a patch (separately from this series as I guess
this should be fixed rather sooner than later) to fix this.
>
> > /**
> > @@ -66,6 +67,9 @@ struct rohm_dvs_config {
> > unsigned int lpsr_reg;
> > unsigned int lpsr_mask;
> > unsigned int lpsr_on_mask;
> > + unsigned int snvs_reg;
> > + unsigned int snvs_mask;
> > + unsigned int snvs_on_mask;
> > };
> >
> > #if IS_ENABLED(CONFIG_REGULATOR_ROHM)
^ permalink raw reply [flat|nested] 34+ messages in thread
end of thread, other threads:[~2021-01-15 9:49 UTC | newest]
Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-08 13:27 [PATCH 00/15] Support ROHM BD71815 PMIC Matti Vaittinen
2021-01-08 13:29 ` [PATCH 01/15] rtc: bd70528: Do not require parent data Matti Vaittinen
2021-01-08 13:31 ` [PATCH 02/15] clk: BD718x7: Do not depend on parent driver data Matti Vaittinen
2021-01-08 13:32 ` [PATCH 03/15] mfd: bd718x7: simplify by cleaning unnecessary device data Matti Vaittinen
2021-01-08 13:34 ` [PATCH 04/15] dt_bindings: bd71828: Add clock output mode Matti Vaittinen
2021-01-13 13:52 ` Rob Herring
2021-01-13 14:52 ` Matti Vaittinen
2021-01-13 15:52 ` Rob Herring
2021-01-08 13:34 ` [PATCH 05/15] dt_bindings: mfd: Add ROHM BD71815 PMIC Matti Vaittinen
2021-01-11 19:06 ` Rob Herring
2021-01-12 6:14 ` Vaittinen, Matti
2021-01-08 13:36 ` [PATCH 06/15] dt_bindings: regulator: Add ROHM BD71815 PMIC regulators Matti Vaittinen
2021-01-11 19:09 ` Rob Herring
2021-01-12 6:10 ` Matti Vaittinen
2021-01-13 13:53 ` Rob Herring
2021-01-13 14:23 ` Vaittinen, Matti
2021-01-13 15:47 ` Rob Herring
2021-01-08 13:37 ` [PATCH 07/15] mfd: Add ROHM BD71815 ID Matti Vaittinen
2021-01-08 13:37 ` [PATCH 08/15] mfd: Support for ROHM BD71815 PMIC core Matti Vaittinen
2021-01-08 13:39 ` [PATCH 09/15] gpio: support ROHM BD71815 GPOs Matti Vaittinen
2021-01-08 19:28 ` kernel test robot
2021-01-09 0:45 ` Linus Walleij
2021-01-11 6:15 ` Vaittinen, Matti
2021-01-11 7:26 ` Vaittinen, Matti
2021-01-08 13:41 ` [PATCH 10/15] regulator: helpers: Export helper voltage listing Matti Vaittinen
2021-01-08 13:42 ` [PATCH 11/15] regulator: rohm-regulator: SNVS dvs and linear voltage support Matti Vaittinen
2021-01-15 8:26 ` Lee Jones
2021-01-15 9:10 ` Vaittinen, Matti
2021-01-15 9:48 ` Matti Vaittinen
2021-01-08 13:43 ` [PATCH 12/15] regulator: Support ROHM BD71815 regulators Matti Vaittinen
2021-01-08 22:30 ` kernel test robot
2021-01-08 13:45 ` [PATCH 13/15] clk: bd718x7: Add support for clk gate on ROHM BD71815 PMIC Matti Vaittinen
2021-01-08 13:46 ` [PATCH 14/15] rtc: bd70528: Support RTC on ROHM BD71815 Matti Vaittinen
2021-01-08 13:46 ` [PATCH 15/15] MAINTAINERS: Add ROHM BD71815AGW Matti Vaittinen
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