This patch removes DRM_TILCDC_SLAVE_COMPAT option for supporting the
obsolete "ti,tilcdc,slave" device tree binding. The new of_graph based
binding - that is widely used in other drm driver too - has been
supported since Linux v4.2. Maintaining the the backwards dts
conversion code in 0the DRM_TILCDC_SLAVE_COMPAT has become a nuisance
for the device/of development so the we decided to drop it after Linux
v4.14, the 2017 LTS.
Signed-off-by: Jyri Sarha <jsarha@xxxxxx>
---
drivers/gpu/drm/tilcdc/Kconfig | 11 -
drivers/gpu/drm/tilcdc/Makefile | 3 -
drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c | 269 -------------------------
drivers/gpu/drm/tilcdc/tilcdc_slave_compat.dts | 72 -------
drivers/gpu/drm/tilcdc/tilcdc_slave_compat.h | 25 ---
5 files changed, 380 deletions(-)
delete mode 100644 drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c
delete mode 100644 drivers/gpu/drm/tilcdc/tilcdc_slave_compat.dts
delete mode 100644 drivers/gpu/drm/tilcdc/tilcdc_slave_compat.h
diff --git a/drivers/gpu/drm/tilcdc/Kconfig b/drivers/gpu/drm/tilcdc/Kconfig
index 28fed7e..81ac824 100644
--- a/drivers/gpu/drm/tilcdc/Kconfig
+++ b/drivers/gpu/drm/tilcdc/Kconfig
@@ -12,14 +12,3 @@ config DRM_TILCDC
controller, for example AM33xx in beagle-bone, DA8xx, or
OMAP-L1xx. This driver replaces the FB_DA8XX fbdev driver.
-config DRM_TILCDC_SLAVE_COMPAT
- bool "Support device tree blobs using TI LCDC Slave binding"
- depends on DRM_TILCDC
- default y
- select OF_RESOLVE
- select OF_OVERLAY
- help
- Choose this option if you need a kernel that is compatible
- with device tree blobs using the obsolete "ti,tilcdc,slave"
- binding. If you find "ti,tilcdc,slave"-string from your DTB,
- you probably need this. Otherwise you do not.
diff --git a/drivers/gpu/drm/tilcdc/Makefile b/drivers/gpu/drm/tilcdc/Makefile
index 55ebd51..efc2c4f 100644
--- a/drivers/gpu/drm/tilcdc/Makefile
+++ b/drivers/gpu/drm/tilcdc/Makefile
@@ -2,9 +2,6 @@ ifeq (, $(findstring -W,$(EXTRA_CFLAGS)))
ccflags-y += -Werror
endif
-obj-$(CONFIG_DRM_TILCDC_SLAVE_COMPAT) += tilcdc_slave_compat.o \
- tilcdc_slave_compat.dtb.o
-
tilcdc-y := \
tilcdc_plane.o \
tilcdc_crtc.o \
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c b/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c
deleted file mode 100644
index 482299a..0000000
--- a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * Copyright (C) 2015 Texas Instruments
- * Author: Jyri Sarha <jsarha@xxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- */
-
-/*
- * To support the old "ti,tilcdc,slave" binding the binding has to be
- * transformed to the new external encoder binding.
- */
-
-#include <linux/kernel.h>
-#include <linux/of.h>
-#include <linux/of_graph.h>
-#include <linux/of_fdt.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-
-#include "tilcdc_slave_compat.h"
-
-struct kfree_table {
- int total;
- int num;
- void **table;
-};
-
-static int __init kfree_table_init(struct kfree_table *kft)
-{
- kft->total = 32;
- kft->num = 0;
- kft->table = kmalloc(kft->total * sizeof(*kft->table),
- GFP_KERNEL);
- if (!kft->table)
- return -ENOMEM;
-
- return 0;
-}
-
-static int __init kfree_table_add(struct kfree_table *kft, void *p)
-{
- if (kft->num == kft->total) {
- void **old = kft->table;
-
- kft->total *= 2;
- kft->table = krealloc(old, kft->total * sizeof(*kft->table),
- GFP_KERNEL);
- if (!kft->table) {
- kft->table = old;
- kfree(p);
- return -ENOMEM;
- }
- }
- kft->table[kft->num++] = p;
- return 0;
-}
-
-static void __init kfree_table_free(struct kfree_table *kft)
-{
- int i;
-
- for (i = 0; i < kft->num; i++)
- kfree(kft->table[i]);
-
- kfree(kft->table);
-}
-
-static
-struct property * __init tilcdc_prop_dup(const struct property *prop,
- struct kfree_table *kft)
-{
- struct property *nprop;
-
- nprop = kzalloc(sizeof(*nprop), GFP_KERNEL);
- if (!nprop || kfree_table_add(kft, nprop))
- return NULL;
-
- nprop->name = kstrdup(prop->name, GFP_KERNEL);
- if (!nprop->name || kfree_table_add(kft, nprop->name))
- return NULL;
-
- nprop->value = kmemdup(prop->value, prop->length, GFP_KERNEL);
- if (!nprop->value || kfree_table_add(kft, nprop->value))
- return NULL;
-
- nprop->length = prop->length;
-
- return nprop;
-}
-
-static void __init tilcdc_copy_props(struct device_node *from,
- struct device_node *to,
- const char * const props[],
- struct kfree_table *kft)
-{
- struct property *prop;
- int i;
-
- for (i = 0; props[i]; i++) {
- prop = of_find_property(from, props[i], NULL);
- if (!prop)
- continue;
-
- prop = tilcdc_prop_dup(prop, kft);
- if (!prop)
- continue;
-
- prop->next = to->properties;
- to->properties = prop;
- }
-}
-
-static int __init tilcdc_prop_str_update(struct property *prop,
- const char *str,
- struct kfree_table *kft)
-{
- prop->value = kstrdup(str, GFP_KERNEL);
- if (kfree_table_add(kft, prop->value) || !prop->value)
- return -ENOMEM;
- prop->length = strlen(str)+1;
- return 0;
-}
-
-static void __init tilcdc_node_disable(struct device_node *node)
-{
- struct property *prop;
-
- prop = kzalloc(sizeof(*prop), GFP_KERNEL);
- if (!prop)
- return;
-
- prop->name = "status";
- prop->value = "disabled";
- prop->length = strlen((char *)prop->value)+1;
-
- of_update_property(node, prop);
-}
-
-static struct device_node * __init tilcdc_get_overlay(struct kfree_table *kft)
-{
- const int size = __dtb_tilcdc_slave_compat_end -
- __dtb_tilcdc_slave_compat_begin;
- static void *overlay_data;
- struct device_node *overlay;
- int ret;
-
- if (!size) {
- pr_warn("%s: No overlay data\n", __func__);
- return NULL;
- }
-
- overlay_data = kmemdup(__dtb_tilcdc_slave_compat_begin,
- size, GFP_KERNEL);
- if (!overlay_data || kfree_table_add(kft, overlay_data))
- return NULL;
-
- of_fdt_unflatten_tree(overlay_data, NULL, &overlay);
- if (!overlay) {
- pr_warn("%s: Unfattening overlay tree failed\n", __func__);
- return NULL;
- }
-
- ret = of_resolve_phandles(overlay);
- if (ret) {
- pr_err("%s: Failed to resolve phandles: %d\n", __func__, ret);
- return NULL;
- }
-
- return overlay;
-}
-
-static const struct of_device_id tilcdc_slave_of_match[] __initconst = {
- { .compatible = "ti,tilcdc,slave", },
- {},
-};
-
-static const struct of_device_id tilcdc_of_match[] __initconst = {
- { .compatible = "ti,am33xx-tilcdc", },
- {},
-};
-
-static const struct of_device_id tilcdc_tda998x_of_match[] __initconst = {
- { .compatible = "nxp,tda998x", },
- {},
-};
-
-static const char * const tilcdc_slave_props[] __initconst = {
- "pinctrl-names",
- "pinctrl-0",
- "pinctrl-1",
- NULL
-};
-
-static void __init tilcdc_convert_slave_node(void)
-{
- struct device_node *slave = NULL, *lcdc = NULL;
- struct device_node *i2c = NULL, *fragment = NULL;
- struct device_node *overlay, *encoder;
- struct property *prop;
- /* For all memory needed for the overlay tree. This memory can
- be freed after the overlay has been applied. */
- struct kfree_table kft;
- int ret;
-
- if (kfree_table_init(&kft))
- return;
-
- lcdc = of_find_matching_node(NULL, tilcdc_of_match);
- slave = of_find_matching_node(NULL, tilcdc_slave_of_match);
-
- if (!slave || !of_device_is_available(lcdc))
- goto out;
-
- i2c = of_parse_phandle(slave, "i2c", 0);
- if (!i2c) {
- pr_err("%s: Can't find i2c node trough phandle\n", __func__);
- goto out;
- }
-
- overlay = tilcdc_get_overlay(&kft);
- if (!overlay)
- goto out;
-
- encoder = of_find_matching_node(overlay, tilcdc_tda998x_of_match);
- if (!encoder) {
- pr_err("%s: Failed to find tda998x node\n", __func__);
- goto out;
- }
-
- tilcdc_copy_props(slave, encoder, tilcdc_slave_props, &kft);
-
- for_each_child_of_node(overlay, fragment) {
- prop = of_find_property(fragment, "target-path", NULL);
- if (!prop)
- continue;
- if (!strncmp("i2c", (char *)prop->value, prop->length))
- if (tilcdc_prop_str_update(prop, i2c->full_name, &kft))
- goto out;
- if (!strncmp("lcdc", (char *)prop->value, prop->length))
- if (tilcdc_prop_str_update(prop, lcdc->full_name, &kft))
- goto out;
- }
-
- tilcdc_node_disable(slave);
-
- ret = of_overlay_create(overlay);
- if (ret)
- pr_err("%s: Creating overlay failed: %d\n", __func__, ret);
- else
- pr_info("%s: ti,tilcdc,slave node successfully converted\n",
- __func__);
-out:
- kfree_table_free(&kft);
- of_node_put(i2c);
- of_node_put(slave);
- of_node_put(lcdc);
- of_node_put(fragment);
-}
-
-static int __init tilcdc_slave_compat_init(void)
-{
- tilcdc_convert_slave_node();
- return 0;
-}
-
-subsys_initcall(tilcdc_slave_compat_init);
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.dts b/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.dts
deleted file mode 100644
index 693f8b0..0000000
--- a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.dts
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * DTS overlay for converting ti,tilcdc,slave binding to new binding.
- *
- * Copyright (C) 2015 Texas Instruments Inc.
- * Author: Jyri Sarha <jsarha@xxxxxx>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- */
-
-/*
- * target-path property values are simple tags that are replaced with
- * correct values in tildcdc_slave_compat.c. Some properties are also
- * copied over from the ti,tilcdc,slave node.
- */
-
-/dts-v1/;
-/ {
- fragment@0 {
- target-path = "i2c";
- __overlay__ {
- #address-cells = <1>;
- #size-cells = <0>;
- tda19988 {
- compatible = "nxp,tda998x";
- reg = <0x70>;
- status = "okay";
-
- port {
- hdmi_0: endpoint@0 {
- remote-endpoint = <&lcd_0>;
- };
- };
- };
- };
- };
-
- fragment@1 {
- target-path = "lcdc";
- __overlay__ {
- port {
- lcd_0: endpoint@0 {
- remote-endpoint = <&hdmi_0>;
- };
- };
- };
- };
-
- __local_fixups__ {
- fragment@0 {
- __overlay__ {
- tda19988 {
- port {
- endpoint@0 {
- remote-endpoint = <0>;
- };
- };
- };
- };
- };
- fragment@1 {
- __overlay__ {
- port {
- endpoint@0 {
- remote-endpoint = <0>;
- };
- };
- };
- };
- };
-};
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.h b/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.h
deleted file mode 100644
index 403d35d..0000000
--- a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2015 Texas Instruments
- * Author: Jyri Sarha <jsarha@xxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program. If not, see <http://www.gnu.org/licenses/>.
- */
-/* This header declares the symbols defined in tilcdc_slave_compat.dts */
-
-#ifndef __TILCDC_SLAVE_COMPAT_H__
-#define __TILCDC_SLAVE_COMPAT_H__
-
-extern uint8_t __dtb_tilcdc_slave_compat_begin[];
-extern uint8_t __dtb_tilcdc_slave_compat_end[];
-
-#endif /* __TILCDC_SLAVE_COMPAT_H__ */
--
1.9.1
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
