[PATCH 2/2] media: rc: remove zte zx ir driver

From: Arnd Bergmann
Date: Wed Jan 20 2021 - 10:34:19 EST

From: Arnd Bergmann <arnd@xxxxxxxx>

The zte zx platform is getting removed, so this driver is no
longer needed.

Cc: Jun Nie <jun.nie@xxxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
.../devicetree/bindings/media/zx-irdec.txt | 14 --
drivers/media/rc/Kconfig | 11 --
drivers/media/rc/Makefile | 1 -
drivers/media/rc/zx-irdec.c | 181 ------------------
4 files changed, 207 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/media/zx-irdec.txt
delete mode 100644 drivers/media/rc/zx-irdec.c

diff --git a/Documentation/devicetree/bindings/media/zx-irdec.txt b/Documentation/devicetree/bindings/media/zx-irdec.txt
deleted file mode 100644
index 295b9fab593e..000000000000
--- a/Documentation/devicetree/bindings/media/zx-irdec.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-IR Decoder (IRDEC) on ZTE ZX family SoCs
-
-Required properties:
- - compatible: Should be "zte,zx296718-irdec".
- - reg: Physical base address and length of IRDEC registers.
- - interrupts: Interrupt number of IRDEC.
-
-Exmaples:
-
- irdec: ir-decoder@111000 {
- compatible = "zte,zx296718-irdec";
- reg = <0x111000 0x1000>;
- interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
- };
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 39bc75cc1848..afeef7d99a5a 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -509,17 +509,6 @@ config RC_XBOX_DVD
To compile this driver as a module, choose M here: the module will be
called xbox_remote.

-config IR_ZX
- tristate "ZTE ZX IR remote control"
- depends on RC_CORE
- depends on ARCH_ZX || COMPILE_TEST
- help
- Say Y if you want to use the IR remote control available
- on ZTE ZX family SoCs.
-
- To compile this driver as a module, choose M here: the
- module will be called zx-irdec.
-
config IR_TOY
tristate "Infrared Toy and IR Droid"
depends on RC_CORE
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index f46a72071a7b..23eb7d43d2ff 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -47,6 +47,5 @@ obj-$(CONFIG_IR_IMG) += img-ir/
obj-$(CONFIG_IR_SERIAL) += serial_ir.o
obj-$(CONFIG_IR_SIR) += sir_ir.o
obj-$(CONFIG_IR_MTK) += mtk-cir.o
-obj-$(CONFIG_IR_ZX) += zx-irdec.o
obj-$(CONFIG_RC_XBOX_DVD) += xbox_remote.o
obj-$(CONFIG_IR_TOY) += ir_toy.o
diff --git a/drivers/media/rc/zx-irdec.c b/drivers/media/rc/zx-irdec.c
deleted file mode 100644
index 948ad90ae5d8..000000000000
--- a/drivers/media/rc/zx-irdec.c
+++ /dev/null
@@ -1,181 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2017 Sanechips Technology Co., Ltd.
- * Copyright 2017 Linaro Ltd.
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-
-#include <media/rc-core.h>
-
-#define DRIVER_NAME "zx-irdec"
-
-#define ZX_IR_ENABLE 0x04
-#define ZX_IREN BIT(0)
-#define ZX_IR_CTRL 0x08
-#define ZX_DEGL_MASK GENMASK(21, 20)
-#define ZX_DEGL_VALUE(x) (((x) << 20) & ZX_DEGL_MASK)
-#define ZX_WDBEGIN_MASK GENMASK(18, 8)
-#define ZX_WDBEGIN_VALUE(x) (((x) << 8) & ZX_WDBEGIN_MASK)
-#define ZX_IR_INTEN 0x10
-#define ZX_IR_INTSTCLR 0x14
-#define ZX_IR_CODE 0x30
-#define ZX_IR_CNUM 0x34
-#define ZX_NECRPT BIT(16)
-
-struct zx_irdec {
- void __iomem *base;
- struct rc_dev *rcd;
-};
-
-static void zx_irdec_set_mask(struct zx_irdec *irdec, unsigned int reg,
- u32 mask, u32 value)
-{
- u32 data;
-
- data = readl(irdec->base + reg);
- data &= ~mask;
- data |= value & mask;
- writel(data, irdec->base + reg);
-}
-
-static irqreturn_t zx_irdec_irq(int irq, void *dev_id)
-{
- struct zx_irdec *irdec = dev_id;
- u8 address, not_address;
- u8 command, not_command;
- u32 rawcode, scancode;
- enum rc_proto rc_proto;
-
- /* Clear interrupt */
- writel(1, irdec->base + ZX_IR_INTSTCLR);
-
- /* Check repeat frame */
- if (readl(irdec->base + ZX_IR_CNUM) & ZX_NECRPT) {
- rc_repeat(irdec->rcd);
- goto done;
- }
-
- rawcode = readl(irdec->base + ZX_IR_CODE);
- not_command = (rawcode >> 24) & 0xff;
- command = (rawcode >> 16) & 0xff;
- not_address = (rawcode >> 8) & 0xff;
- address = rawcode & 0xff;
-
- scancode = ir_nec_bytes_to_scancode(address, not_address,
- command, not_command,
- &rc_proto);
- rc_keydown(irdec->rcd, rc_proto, scancode, 0);
-
-done:
- return IRQ_HANDLED;
-}
-
-static int zx_irdec_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct zx_irdec *irdec;
- struct resource *res;
- struct rc_dev *rcd;
- int irq;
- int ret;
-
- irdec = devm_kzalloc(dev, sizeof(*irdec), GFP_KERNEL);
- if (!irdec)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- irdec->base = devm_ioremap_resource(dev, res);
- if (IS_ERR(irdec->base))
- return PTR_ERR(irdec->base);
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- rcd = devm_rc_allocate_device(dev, RC_DRIVER_SCANCODE);
- if (!rcd) {
- dev_err(dev, "failed to allocate rc device\n");
- return -ENOMEM;
- }
-
- irdec->rcd = rcd;
-
- rcd->priv = irdec;
- rcd->input_phys = DRIVER_NAME "/input0";
- rcd->input_id.bustype = BUS_HOST;
- rcd->map_name = RC_MAP_ZX_IRDEC;
- rcd->allowed_protocols = RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX |
- RC_PROTO_BIT_NEC32;
- rcd->driver_name = DRIVER_NAME;
- rcd->device_name = DRIVER_NAME;
-
- platform_set_drvdata(pdev, irdec);
-
- ret = devm_rc_register_device(dev, rcd);
- if (ret) {
- dev_err(dev, "failed to register rc device\n");
- return ret;
- }
-
- ret = devm_request_irq(dev, irq, zx_irdec_irq, 0, NULL, irdec);
- if (ret) {
- dev_err(dev, "failed to request irq\n");
- return ret;
- }
-
- /*
- * Initialize deglitch level and watchdog counter beginner as
- * recommended by vendor BSP code.
- */
- zx_irdec_set_mask(irdec, ZX_IR_CTRL, ZX_DEGL_MASK, ZX_DEGL_VALUE(0));
- zx_irdec_set_mask(irdec, ZX_IR_CTRL, ZX_WDBEGIN_MASK,
- ZX_WDBEGIN_VALUE(0x21c));
-
- /* Enable interrupt */
- writel(1, irdec->base + ZX_IR_INTEN);
-
- /* Enable the decoder */
- zx_irdec_set_mask(irdec, ZX_IR_ENABLE, ZX_IREN, ZX_IREN);
-
- return 0;
-}
-
-static int zx_irdec_remove(struct platform_device *pdev)
-{
- struct zx_irdec *irdec = platform_get_drvdata(pdev);
-
- /* Disable the decoder */
- zx_irdec_set_mask(irdec, ZX_IR_ENABLE, ZX_IREN, 0);
-
- /* Disable interrupt */
- writel(0, irdec->base + ZX_IR_INTEN);
-
- return 0;
-}
-
-static const struct of_device_id zx_irdec_match[] = {
- { .compatible = "zte,zx296718-irdec" },
- { },
-};
-MODULE_DEVICE_TABLE(of, zx_irdec_match);
-
-static struct platform_driver zx_irdec_driver = {
- .probe = zx_irdec_probe,
- .remove = zx_irdec_remove,
- .driver = {
- .name = DRIVER_NAME,
- .of_match_table = zx_irdec_match,
- },
-};
-module_platform_driver(zx_irdec_driver);
-
-MODULE_DESCRIPTION("ZTE ZX IR remote control driver");
-MODULE_AUTHOR("Shawn Guo <shawn.guo@xxxxxxxxxx>");
-MODULE_LICENSE("GPL v2");
--
2.29.2