| Message ID | 20201127111420.96500-1-alexandru.ardelean@analog.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/4] Input: adp5589-keys - add default platform data | expand |
> -----Original Message----- > From: Alexandru Ardelean <alexandru.ardelean@analog.com> > Sent: Friday, November 27, 2020 1:14 PM > To: linux-input@vger.kernel.org; linux-kernel@vger.kernel.org; > devicetree@vger.kernel.org > Cc: lars@metafoo.de; dmitry.torokhov@gmail.com; robh+dt@kernel.org; > Ardelean, Alexandru <alexandru.Ardelean@analog.com> > Subject: [PATCH v3 1/4] Input: adp5589-keys - add default platform data > > From: Lars-Peter Clausen <lars@metafoo.de> > > If no platform data is supplied use a dummy platform data that configures the > device in GPIO only mode. This change adds a adp5589_kpad_pdata_get() helper > that returns the default platform-data. This can be later extended to load > configuration from device-trees or ACPI. > Ping on this for the input subsystem. Since patch 4 was applied by Rob, maybe for input, only the first 3 should be applied. Or, should I re-send just the first 3? Thanks Alex > Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> > Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> > --- > > Changelog v2 - v3: > * https://lore.kernel.org/linux-input/20201124082255.13427-1- > alexandru.ardelean@analog.com/ > * added patch 'dt-bindings: add ADP5585/ADP5589 entries to trivial-devices' > > drivers/input/keyboard/adp5589-keys.c | 33 +++++++++++++++++++-------- > 1 file changed, 24 insertions(+), 9 deletions(-) > > diff --git a/drivers/input/keyboard/adp5589-keys.c > b/drivers/input/keyboard/adp5589-keys.c > index e2cdf14d90cd..742bf4b97dbb 100644 > --- a/drivers/input/keyboard/adp5589-keys.c > +++ b/drivers/input/keyboard/adp5589-keys.c > @@ -369,6 +369,25 @@ static const struct adp_constants const_adp5585 = { > .reg = adp5585_reg, > }; > > +static const struct adp5589_gpio_platform_data adp5589_default_gpio_pdata > = { > + .gpio_start = -1, > +}; > + > +static const struct adp5589_kpad_platform_data adp5589_default_pdata = { > + .gpio_data = &adp5589_default_gpio_pdata, }; > + > +static const struct adp5589_kpad_platform_data *adp5589_kpad_pdata_get( > + struct device *dev) > +{ > + const struct adp5589_kpad_platform_data *pdata = > +dev_get_platdata(dev); > + > + if (!pdata) > + pdata = &adp5589_default_pdata; > + > + return pdata; > +} > + > static int adp5589_read(struct i2c_client *client, u8 reg) { > int ret = i2c_smbus_read_byte_data(client, reg); @@ -498,7 +517,8 @@ > static int adp5589_build_gpiomap(struct adp5589_kpad *kpad, static int > adp5589_gpio_add(struct adp5589_kpad *kpad) { > struct device *dev = &kpad->client->dev; > - const struct adp5589_kpad_platform_data *pdata = > dev_get_platdata(dev); > + const struct adp5589_kpad_platform_data *pdata = > + adp5589_kpad_pdata_get(dev); > const struct adp5589_gpio_platform_data *gpio_data = pdata- > >gpio_data; > int i, error; > > @@ -619,7 +639,7 @@ static int adp5589_setup(struct adp5589_kpad *kpad) { > struct i2c_client *client = kpad->client; > const struct adp5589_kpad_platform_data *pdata = > - dev_get_platdata(&client->dev); > + adp5589_kpad_pdata_get(&client->dev); > u8 (*reg) (u8) = kpad->var->reg; > unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0; > unsigned char pull_mask = 0; > @@ -824,7 +844,7 @@ static int adp5589_keypad_add(struct adp5589_kpad > *kpad, unsigned int revid) { > struct i2c_client *client = kpad->client; > const struct adp5589_kpad_platform_data *pdata = > - dev_get_platdata(&client->dev); > + adp5589_kpad_pdata_get(&client->dev); > struct input_dev *input; > unsigned int i; > int error; > @@ -948,7 +968,7 @@ static int adp5589_probe(struct i2c_client *client, { > struct adp5589_kpad *kpad; > const struct adp5589_kpad_platform_data *pdata = > - dev_get_platdata(&client->dev); > + adp5589_kpad_pdata_get(&client->dev); > unsigned int revid; > int error, ret; > > @@ -958,11 +978,6 @@ static int adp5589_probe(struct i2c_client *client, > return -EIO; > } > > - if (!pdata) { > - dev_err(&client->dev, "no platform data?\n"); > - return -EINVAL; > - } > - > kpad = devm_kzalloc(&client->dev, sizeof(*kpad), GFP_KERNEL); > if (!kpad) > return -ENOMEM; > -- > 2.27.0
Hi Alexandru, Lars-Peter, On Fri, Nov 27, 2020 at 01:14:17PM +0200, Alexandru Ardelean wrote: > From: Lars-Peter Clausen <lars@metafoo.de> > > If no platform data is supplied use a dummy platform data that configures > the device in GPIO only mode. This change adds a adp5589_kpad_pdata_get() > helper that returns the default platform-data. This can be later extended > to load configuration from device-trees or ACPI. I was looking at this and I do not think it is a good idea, as later we will need to add negation if someone does nor want use GPIO mode. We should use the standard "gpio-controller" property from the beginning. Thanks.
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c index e2cdf14d90cd..742bf4b97dbb 100644 --- a/drivers/input/keyboard/adp5589-keys.c +++ b/drivers/input/keyboard/adp5589-keys.c @@ -369,6 +369,25 @@ static const struct adp_constants const_adp5585 = { .reg = adp5585_reg, }; +static const struct adp5589_gpio_platform_data adp5589_default_gpio_pdata = { + .gpio_start = -1, +}; + +static const struct adp5589_kpad_platform_data adp5589_default_pdata = { + .gpio_data = &adp5589_default_gpio_pdata, +}; + +static const struct adp5589_kpad_platform_data *adp5589_kpad_pdata_get( + struct device *dev) +{ + const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev); + + if (!pdata) + pdata = &adp5589_default_pdata; + + return pdata; +} + static int adp5589_read(struct i2c_client *client, u8 reg) { int ret = i2c_smbus_read_byte_data(client, reg); @@ -498,7 +517,8 @@ static int adp5589_build_gpiomap(struct adp5589_kpad *kpad, static int adp5589_gpio_add(struct adp5589_kpad *kpad) { struct device *dev = &kpad->client->dev; - const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev); + const struct adp5589_kpad_platform_data *pdata = + adp5589_kpad_pdata_get(dev); const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data; int i, error; @@ -619,7 +639,7 @@ static int adp5589_setup(struct adp5589_kpad *kpad) { struct i2c_client *client = kpad->client; const struct adp5589_kpad_platform_data *pdata = - dev_get_platdata(&client->dev); + adp5589_kpad_pdata_get(&client->dev); u8 (*reg) (u8) = kpad->var->reg; unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0; unsigned char pull_mask = 0; @@ -824,7 +844,7 @@ static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid) { struct i2c_client *client = kpad->client; const struct adp5589_kpad_platform_data *pdata = - dev_get_platdata(&client->dev); + adp5589_kpad_pdata_get(&client->dev); struct input_dev *input; unsigned int i; int error; @@ -948,7 +968,7 @@ static int adp5589_probe(struct i2c_client *client, { struct adp5589_kpad *kpad; const struct adp5589_kpad_platform_data *pdata = - dev_get_platdata(&client->dev); + adp5589_kpad_pdata_get(&client->dev); unsigned int revid; int error, ret; @@ -958,11 +978,6 @@ static int adp5589_probe(struct i2c_client *client, return -EIO; } - if (!pdata) { - dev_err(&client->dev, "no platform data?\n"); - return -EINVAL; - } - kpad = devm_kzalloc(&client->dev, sizeof(*kpad), GFP_KERNEL); if (!kpad) return -ENOMEM;