ARM: omap: remove debug-leds driver

It has been impossible to select this driver for six years
without anyone noticing, so just kill it completely.

Fixes: 54ea18e8866a ("ARM: OMAP2+: Remove board file for H4")
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index dfa19d5..dc53ea8 100644 (file)
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -11,16 +11,6 @@ config ARCH_OMAP_OTG
 
 comment "OMAP Feature Selections"
 
-config OMAP_DEBUG_DEVICES
-       bool
-       help
-         For debug cards on TI reference boards.
-
-config OMAP_DEBUG_LEDS
-       def_bool y if NEW_LEDS
-       depends on OMAP_DEBUG_DEVICES
-       select LEDS_CLASS
-
 config POWER_AVS_OMAP
        bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2"
        depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM

diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 98a7b60..68ccec9 100644 (file)
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -7,7 +7,3 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-omap/include
 
 # Common support
 obj-y := sram.o dma.o
-
-# omap_device support (OMAP2+ only at the moment)
-
-obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o

diff --git a/arch/arm/plat-omap/debug-leds.c b/arch/arm/plat-omap/debug-leds.c
deleted file mode 100644 (file)
index 2b698d0..0000000
--- a/arch/arm/plat-omap/debug-leds.c
+++ /dev/null
@@ -1,171 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/arm/plat-omap/debug-leds.c
- *
- * Copyright 2011 by Bryan Wu <bryan.wu@canonical.com>
- * Copyright 2003 by Texas Instruments Incorporated
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/leds.h>
-#include <linux/io.h>
-#include <linux/platform_data/gpio-omap.h>
-#include <linux/slab.h>
-
-#include <asm/mach-types.h>
-
-/* Many OMAP development platforms reuse the same "debug board"; these
- * platforms include H2, H3, H4, and Perseus2.  There are 16 LEDs on the
- * debug board (all green), accessed through FPGA registers.
- */
-
-/* NOTE:  most boards don't have a static mapping for the FPGA ... */
-struct h2p2_dbg_fpga {
-       /* offset 0x00 */
-       u16             smc91x[8];
-       /* offset 0x10 */
-       u16             fpga_rev;
-       u16             board_rev;
-       u16             gpio_outputs;
-       u16             leds;
-       /* offset 0x18 */
-       u16             misc_inputs;
-       u16             lan_status;
-       u16             lan_reset;
-       u16             reserved0;
-       /* offset 0x20 */
-       u16             ps2_data;
-       u16             ps2_ctrl;
-       /* plus also 4 rs232 ports ... */
-};
-
-static struct h2p2_dbg_fpga __iomem *fpga;
-
-static u16 fpga_led_state;
-
-struct dbg_led {
-       struct led_classdev     cdev;
-       u16                     mask;
-};
-
-static const struct {
-       const char *name;
-       const char *trigger;
-} dbg_leds[] = {
-       { "dbg:d4", "heartbeat", },
-       { "dbg:d5", "cpu0", },
-       { "dbg:d6", "default-on", },
-       { "dbg:d7", },
-       { "dbg:d8", },
-       { "dbg:d9", },
-       { "dbg:d10", },
-       { "dbg:d11", },
-       { "dbg:d12", },
-       { "dbg:d13", },
-       { "dbg:d14", },
-       { "dbg:d15", },
-       { "dbg:d16", },
-       { "dbg:d17", },
-       { "dbg:d18", },
-       { "dbg:d19", },
-};
-
-/*
- * The triggers lines up below will only be used if the
- * LED triggers are compiled in.
- */
-static void dbg_led_set(struct led_classdev *cdev,
-                             enum led_brightness b)
-{
-       struct dbg_led *led = container_of(cdev, struct dbg_led, cdev);
-       u16 reg;
-
-       reg = readw_relaxed(&fpga->leds);
-       if (b != LED_OFF)
-               reg |= led->mask;
-       else
-               reg &= ~led->mask;
-       writew_relaxed(reg, &fpga->leds);
-}
-
-static enum led_brightness dbg_led_get(struct led_classdev *cdev)
-{
-       struct dbg_led *led = container_of(cdev, struct dbg_led, cdev);
-       u16 reg;
-
-       reg = readw_relaxed(&fpga->leds);
-       return (reg & led->mask) ? LED_FULL : LED_OFF;
-}
-
-static int fpga_probe(struct platform_device *pdev)
-{
-       struct resource *iomem;
-       int i;
-
-       iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!iomem)
-               return -ENODEV;
-
-       fpga = ioremap(iomem->start, resource_size(iomem));
-       writew_relaxed(0xff, &fpga->leds);
-
-       for (i = 0; i < ARRAY_SIZE(dbg_leds); i++) {
-               struct dbg_led *led;
-
-               led = kzalloc(sizeof(*led), GFP_KERNEL);
-               if (!led)
-                       break;
-
-               led->cdev.name = dbg_leds[i].name;
-               led->cdev.brightness_set = dbg_led_set;
-               led->cdev.brightness_get = dbg_led_get;
-               led->cdev.default_trigger = dbg_leds[i].trigger;
-               led->mask = BIT(i);
-
-               if (led_classdev_register(NULL, &led->cdev) < 0) {
-                       kfree(led);
-                       break;
-               }
-       }
-
-       return 0;
-}
-
-static int fpga_suspend_noirq(struct device *dev)
-{
-       fpga_led_state = readw_relaxed(&fpga->leds);
-       writew_relaxed(0xff, &fpga->leds);
-
-       return 0;
-}
-
-static int fpga_resume_noirq(struct device *dev)
-{
-       writew_relaxed(~fpga_led_state, &fpga->leds);
-       return 0;
-}
-
-static const struct dev_pm_ops fpga_dev_pm_ops = {
-       .suspend_noirq = fpga_suspend_noirq,
-       .resume_noirq = fpga_resume_noirq,
-};
-
-static struct platform_driver led_driver = {
-       .driver.name    = "omap_dbg_led",
-       .driver.pm      = &fpga_dev_pm_ops,
-       .probe          = fpga_probe,
-};
-
-static int __init fpga_init(void)
-{
-       if (machine_is_omap_h4()
-                       || machine_is_omap_h3()
-                       || machine_is_omap_h2()
-                       || machine_is_omap_perseus2()
-                       )
-               return platform_driver_register(&led_driver);
-       return 0;
-}
-fs_initcall(fpga_init);