add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/lm3533-ctrlbank.c
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@@ -1,14 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * lm3533-ctrlbank.c -- LM3533 Generic Control Bank interface
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  *
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  * Copyright (C) 2011-2012 Texas Instruments
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  *
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  * Author: Johan Hovold <jhovold@gmail.com>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under  the terms of the GNU General  Public License as published by the
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- * Free Software Foundation;  either version 2 of the License, or (at your
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- * option) any later version.
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  */
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 #include <linux/device.h>
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@@ -21,7 +17,6 @@
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 #define LM3533_MAX_CURRENT_MAX		29800
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 #define LM3533_MAX_CURRENT_STEP		800
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-#define LM3533_BRIGHTNESS_MAX		255
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 #define LM3533_PWM_MAX			0x3f
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 #define LM3533_REG_PWM_BASE		0x14
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@@ -93,41 +88,33 @@
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 }
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 EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_max_current);
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90
 
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-#define lm3533_ctrlbank_set(_name, _NAME)				\
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-int lm3533_ctrlbank_set_##_name(struct lm3533_ctrlbank *cb, u8 val)	\
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-{									\
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-	u8 reg;								\
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-	int ret;							\
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-									\
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-	if (val > LM3533_##_NAME##_MAX)					\
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-		return -EINVAL;						\
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-									\
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-	reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_##_NAME##_BASE);	\
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-	ret = lm3533_write(cb->lm3533, reg, val);			\
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-	if (ret)							\
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-		dev_err(cb->dev, "failed to set " #_name "\n");		\
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-									\
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-	return ret;							\
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-}									\
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-EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_##_name);
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+int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val)
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+{
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+	u8 reg;
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+	int ret;
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-#define lm3533_ctrlbank_get(_name, _NAME)				\
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-int lm3533_ctrlbank_get_##_name(struct lm3533_ctrlbank *cb, u8 *val)	\
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-{									\
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-	u8 reg;								\
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-	int ret;							\
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-									\
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-	reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_##_NAME##_BASE);	\
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-	ret = lm3533_read(cb->lm3533, reg, val);			\
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-	if (ret)							\
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-		dev_err(cb->dev, "failed to get " #_name "\n");		\
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-									\
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-	return ret;							\
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-}									\
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-EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_##_name);
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+	reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_BRIGHTNESS_BASE);
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+	ret = lm3533_write(cb->lm3533, reg, val);
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+	if (ret)
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+		dev_err(cb->dev, "failed to set brightness\n");
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-lm3533_ctrlbank_set(brightness, BRIGHTNESS);
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-lm3533_ctrlbank_get(brightness, BRIGHTNESS);
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+	return ret;
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+}
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+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_brightness);
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+
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+int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val)
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+{
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+	u8 reg;
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+	int ret;
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+
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+	reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_BRIGHTNESS_BASE);
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+	ret = lm3533_read(cb->lm3533, reg, val);
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+	if (ret)
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+		dev_err(cb->dev, "failed to get brightness\n");
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+
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+	return ret;
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+}
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+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_brightness);
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 /*
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  * PWM-input control mask:
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@@ -139,9 +126,36 @@
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  *   bit 1 - PWM-input enabled in Zone 0
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  *   bit 0 - PWM-input enabled
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  */
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-lm3533_ctrlbank_set(pwm, PWM);
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-lm3533_ctrlbank_get(pwm, PWM);
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+int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val)
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+{
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+	u8 reg;
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+	int ret;
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+	if (val > LM3533_PWM_MAX)
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+		return -EINVAL;
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+
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+	reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_PWM_BASE);
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+	ret = lm3533_write(cb->lm3533, reg, val);
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+	if (ret)
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+		dev_err(cb->dev, "failed to set PWM mask\n");
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+
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+	return ret;
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+}
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+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_set_pwm);
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+
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+int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val)
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+{
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+	u8 reg;
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+	int ret;
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+
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+	reg = lm3533_ctrlbank_get_reg(cb, LM3533_REG_PWM_BASE);
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+	ret = lm3533_read(cb->lm3533, reg, val);
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+	if (ret)
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+		dev_err(cb->dev, "failed to get PWM mask\n");
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+
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+	return ret;
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+}
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+EXPORT_SYMBOL_GPL(lm3533_ctrlbank_get_pwm);
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 MODULE_AUTHOR("Johan Hovold <jhovold@gmail.com>");
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 MODULE_DESCRIPTION("LM3533 Control Bank interface");