hwmon: (sht15) Root out platform data

After finding out there are active users of this sensor I noticed:

- It has a single PXA27x board file using the platform data
- The platform data is only used to carry two GPIO pins, all other
  fields are unused
- The driver does not use GPIO descriptors but the legacy GPIO
  API

I saw we can swiftly fix this by:

- Killing off the platform data entirely
- Define a GPIO descriptor lookup table in the board file
- Use the standard devm_gpiod_get() to grab the GPIO descriptors
  from either the device tree or the board file table.

This compiles, but needs testing.

Cc: arm@kernel.org
Cc: Marco Franchi <marco.franchi@nxp.com>
Cc: Davide Hug <d@videhug.ch>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Marco Franchi <marco.franchi@nxp.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 0 insertions, 38 deletions

diff --git a/include/linux/platform_data/sht15.h b/include/linux/platform_data/sht15.h
deleted file mode 100644
index 12289c1e9413..000000000000
--- a/include/linux/platform_data/sht15.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * sht15.h - support for the SHT15 Temperature and Humidity Sensor
- *
- * Copyright (c) 2009 Jonathan Cameron
- *
- * Copyright (c) 2007 Wouter Horre
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * For further information, see the Documentation/hwmon/sht15 file.
- */
-
-#ifndef _PDATA_SHT15_H
-#define _PDATA_SHT15_H
-
-/**
- * struct sht15_platform_data - sht15 connectivity info
- * @gpio_data:          no. of gpio to which bidirectional data line is
- *                      connected.
- * @gpio_sck:           no. of gpio to which the data clock is connected.
- * @supply_mv:          supply voltage in mv. Overridden by regulator if
- *                      available.
- * @checksum:           flag to indicate the checksum should be validated.
- * @no_otp_reload:      flag to indicate no reload from OTP.
- * @low_resolution:     flag to indicate the temp/humidity resolution to use.
- */
-struct sht15_platform_data {
-        int gpio_data;
-        int gpio_sck;
-        int supply_mv;
-        bool checksum;
-        bool no_otp_reload;
-        bool low_resolution;
-};
-
-#endif /* _PDATA_SHT15_H */