Hi Dmitry, Sekhar,
On Thu, Mar 9, 2017 at 3:31 PM, <yegorslists@xxxxxxxxxxxxxx> wrote:
> From: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
>
> This patch adds support for DT to tps6507x-ts driver.
>
> Signed-off-by: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
> ---
> drivers/input/touchscreen/tps6507x-ts.c | 40 ++++++++++-----------------------
> 1 file changed, 12 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
> index fbaa2f68..502ed0c 100644
> --- a/drivers/input/touchscreen/tps6507x-ts.c
> +++ b/drivers/input/touchscreen/tps6507x-ts.c
> @@ -22,6 +22,8 @@
> #include <linux/mfd/tps6507x.h>
> #include <linux/input/tps6507x-ts.h>
> #include <linux/delay.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
>
> #define TSC_DEFAULT_POLL_PERIOD 30 /* ms */
> #define TPS_DEFAULT_MIN_PRESSURE 0x30
> @@ -202,30 +204,11 @@ static void tps6507x_ts_poll(struct input_polled_dev *poll_dev)
> static int tps6507x_ts_probe(struct platform_device *pdev)
> {
> struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
> - const struct tps6507x_board *tps_board;
> - const struct touchscreen_init_data *init_data;
> struct tps6507x_ts *tsc;
> struct input_polled_dev *poll_dev;
> struct input_dev *input_dev;
> int error;
>
> - /*
> - * tps_board points to pmic related constants
> - * coming from the board-evm file.
> - */
> - tps_board = dev_get_platdata(tps6507x_dev->dev);
> - if (!tps_board) {
> - dev_err(tps6507x_dev->dev,
> - "Could not find tps6507x platform data\n");
> - return -ENODEV;
> - }
> -
> - /*
> - * init_data points to array of regulator_init structures
> - * coming from the board-evm file.
> - */
> - init_data = tps_board->tps6507x_ts_init_data;
> -
> tsc = devm_kzalloc(&pdev->dev, sizeof(struct tps6507x_ts), GFP_KERNEL);
> if (!tsc) {
> dev_err(tps6507x_dev->dev, "failed to allocate driver data\n");
> @@ -234,8 +217,6 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
>
> tsc->mfd = tps6507x_dev;
> tsc->dev = tps6507x_dev->dev;
> - tsc->min_pressure = init_data ?
> - init_data->min_pressure : TPS_DEFAULT_MIN_PRESSURE;
>
> snprintf(tsc->phys, sizeof(tsc->phys),
> "%s/input0", dev_name(tsc->dev));
> @@ -250,8 +231,6 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
>
> poll_dev->private = tsc;
> poll_dev->poll = tps6507x_ts_poll;
> - poll_dev->poll_interval = init_data ?
> - init_data->poll_period : TSC_DEFAULT_POLL_PERIOD;
>
> input_dev = poll_dev->input;
> input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
> @@ -265,11 +244,16 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
> input_dev->phys = tsc->phys;
> input_dev->dev.parent = tsc->dev;
> input_dev->id.bustype = BUS_I2C;
> - if (init_data) {
> - input_dev->id.vendor = init_data->vendor;
> - input_dev->id.product = init_data->product;
> - input_dev->id.version = init_data->version;
> - }
> + input_dev->id.vendor = 0;
> + input_dev->id.product = 65070;
> + input_dev->id.version = 0x100;
I've left the data as is to preserve current behavior until we decide
on what exact IDs to take.
> + tsc->poll_dev->poll_interval = TSC_DEFAULT_POLL_PERIOD;
> + tsc->min_pressure = TPS_DEFAULT_MIN_PRESSURE;
> + device_property_read_u32_array(tsc->dev, "ti,poll-period",
> + &tsc->poll_dev->poll_interval, 1);
> + device_property_read_u16_array(tsc->dev, "ti,min-pressure",
> + &tsc->min_pressure, 1);
This is working for DT, but I have problems with converting
arch/arm/mach-davinci/board-da850-evm.c
tps is a i2c device. How do I obtain struct device *dev from i2c_board?
Yegor
> error = tps6507x_adc_standby(tsc);
> if (error)
> --
> 2.1.4
>
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