From: AngeloGioacchino Del Regno <[email protected]>
This patch series adds support for the Novatek NT36xxx Series' In-Cell
touchscreen (integrated into the DriverIC).
This patch series has been tested against the following devices:
- Sony Xperia 10 (SDM630 Ganges Kirin)
- Sony Xperia 10 Plus (SDM636 Ganges Mermaid)
Changes in v2:
- Fixed sparse warnings from lkp kernel test robot
Changes in v3 (as requested by Dmitry Torokhov):
- Using shorthand u16/u32 (sorry for the overlook!)
- Now using more input and touchscreen APIs
- Fixed useless workqueue involvements
- Removed useless locking
- Switched reads and writes to use regmap
- Moved header contents to nt36xxx.c
- Fixed reset gpio handling
- Other cleanups
- P.S.: Thanks, Dmitry!
Changes in v4:
- Fixed regmap read length for CRC_ERR_FLAG final check
- Fixed YAML binding, as requested by Krzysztof Kozlowski
Changes in v5:
- Replaced subsystem maintainer's name with .. mine,
usage of additionalProperties to unevaluatedProperties
and a typo fix for reset-gpios as per Rob Herring's review
- Changed compatible string as per Krzysztof K. request
- Renamed the novatek,nt36xxx.yaml file to just nt36xxx.yaml
in order to now reflect the driver name instead of the DT
compatible
- Fixed blank line at EOF
Changes in v6:
- Removed include of_gpio.h, added mod_devicetable.h and
gpio/consumer.h
- Added kerneldoc to relevant functions/enum
- Used traditional patterns for error checking where possible
- Documented calls to usleep/msleep
- Using be16_to_cpu / get_unaligned_be16 where possible
- Added helper for CRC error check on retrieved buffer
- Decreased indentation in the CRC reboot recovery function
- Removed instances of error code sum
- Dropped all likely/unlikely optimization as per request
- Removed redundant reset_gpio checks
- Dropped of_match_ptr and ifdefs for CONFIG_OF
AngeloGioacchino Del Regno (3):
dt-bindings: Add vendor prefix for Novatek Microelectronics Corp.
Input: Add Novatek NT36xxx touchscreen driver
dt-bindings: touchscreen: Add binding for Novatek NT36xxx series
driver
.../bindings/input/touchscreen/nt36xxx.yaml | 59 ++
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
drivers/input/touchscreen/Kconfig | 12 +
drivers/input/touchscreen/Makefile | 1 +
drivers/input/touchscreen/nt36xxx.c | 895 ++++++++++++++++++
5 files changed, 969 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/nt36xxx.yaml
create mode 100644 drivers/input/touchscreen/nt36xxx.c
--
2.28.0
From: AngeloGioacchino Del Regno <[email protected]>
Add binding for the Novatek NT36xxx series touchscreen driver.
Signed-off-by: AngeloGioacchino Del Regno <[email protected]>
---
.../bindings/input/touchscreen/nt36xxx.yaml | 59 +++++++++++++++++++
1 file changed, 59 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/nt36xxx.yaml
diff --git a/Documentation/devicetree/bindings/input/touchscreen/nt36xxx.yaml b/Documentation/devicetree/bindings/input/touchscreen/nt36xxx.yaml
new file mode 100644
index 000000000000..1486b20d6c49
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/nt36xxx.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/nt36xxx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Novatek NT36xxx series touchscreen controller Bindings
+
+maintainers:
+ - AngeloGioacchino Del Regno <[email protected]>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: novatek,nt36525
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ vdd-supply:
+ description: Power supply regulator for VDD pin
+
+ vio-supply:
+ description: Power supply regulator on VDD-IO pin
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@62 {
+ compatible = "novatek,nt36525";
+ reg = <0x62>;
+ interrupt-parent = <&tlmm>;
+ interrupts = <45 IRQ_TYPE_EDGE_RISING>;
+ reset-gpio = <&tlmm 102 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+...
--
2.28.0
From: AngeloGioacchino Del Regno <[email protected]>
Add prefix for Novatek Microelectronics Corp.
Signed-off-by: AngeloGioacchino Del Regno <[email protected]>
Acked-by: Rob Herring <[email protected]>
---
Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 66e45112a8d7..f98ea0af487d 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -740,6 +740,8 @@ patternProperties:
description: Nokia
"^nordic,.*":
description: Nordic Semiconductor
+ "^novatek,.*":
+ description: Novatek Microelectronics Corp.
"^novtech,.*":
description: NovTech, Inc.
"^nutsboard,.*":
--
2.28.0