Merge tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:

 - Add a new LED common module for ti-lmu driver family

 - Modify MFD ti-lmu bindings
        - add ti,brightness-resolution
        - add the ramp up/down property

 - Add regulator support for LM36274 driver to lm363x-regulator.c

 - New LED class drivers with DT bindings:
        - leds-spi-byte
        - leds-lm36274
        - leds-lm3697 (move the support from MFD to LED subsystem)

 - Simplify getting the I2C adapter of a client:
        - leds-tca6507
        - leds-pca955x

 - Convert LED documentation to ReST

* tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  dt: leds-lm36274.txt: fix a broken reference to ti-lmu.txt
  docs: leds: convert to ReST
  leds: leds-tca6507: simplify getting the adapter of a client
  leds: leds-pca955x: simplify getting the adapter of a client
  leds: lm36274: Introduce the TI LM36274 LED driver
  dt-bindings: leds: Add LED bindings for the LM36274
  regulator: lm363x: Add support for LM36274
  mfd: ti-lmu: Add LM36274 support to the ti-lmu
  dt-bindings: mfd: Add lm36274 bindings to ti-lmu
  leds: max77650: Remove set but not used variable 'parent'
  leds: avoid flush_work in atomic context
  leds: lm3697: Introduce the lm3697 driver
  mfd: ti-lmu: Remove support for LM3697
  dt-bindings: ti-lmu: Modify dt bindings for the LM3697
  leds: TI LMU: Add common code for TI LMU devices
  leds: spi-byte: add single byte SPI LED driver
  dt-bindings: leds: Add binding for spi-byte LED.
  dt-bindings: mfd: LMU: Add ti,brightness-resolution
  dt-bindings: mfd: LMU: Add the ramp up/down property

1 files changed, 47 insertions, 0 deletions

diff --git a/include/linux/leds-ti-lmu-common.h b/include/linux/leds-ti-lmu-common.h
new file mode 100644
index 000000000000..5eb111f38803
--- /dev/null
+++ b/include/linux/leds-ti-lmu-common.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// TI LMU Common Core
+// Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+
+#ifndef _TI_LMU_COMMON_H_
+#define _TI_LMU_COMMON_H_
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <uapi/linux/uleds.h>
+
+#define LMU_11BIT_LSB_MASK	(BIT(0) | BIT(1) | BIT(2))
+#define LMU_11BIT_MSB_SHIFT	3
+
+#define MAX_BRIGHTNESS_8BIT	255
+#define MAX_BRIGHTNESS_11BIT	2047
+
+struct ti_lmu_bank {
+	struct regmap *regmap;
+
+	int max_brightness;
+
+	u8 lsb_brightness_reg;
+	u8 msb_brightness_reg;
+
+	u8 runtime_ramp_reg;
+	u32 ramp_up_usec;
+	u32 ramp_down_usec;
+};
+
+int ti_lmu_common_set_brightness(struct ti_lmu_bank *lmu_bank, int brightness);
+
+int ti_lmu_common_set_ramp(struct ti_lmu_bank *lmu_bank);
+
+int ti_lmu_common_get_ramp_params(struct device *dev,
+				  struct fwnode_handle *child,
+				  struct ti_lmu_bank *lmu_data);
+
+int ti_lmu_common_get_brt_res(struct device *dev, struct fwnode_handle *child,
+			      struct ti_lmu_bank *lmu_data);
+
+#endif /* _TI_LMU_COMMON_H_ */