--- /dev/null
+* TI - DSP (Digital Signal Processor)
+
+TI DSP included in OMAP SoC
+
+Required properties:
+- compatible : Should be "ti,omap3-c64" for OMAP3 & 4
+- ti,hwmods: "dsp"
+
+Examples:
+
+dsp {
+ compatible = "ti,omap3-c64";
+ ti,hwmods = "dsp";
+};
--- /dev/null
+* TI - IVA (Imaging and Video Accelerator) subsystem
+
+The IVA contain various audio, video or imaging HW accelerator
+depending of the version.
+
+Required properties:
+- compatible : Should be:
+ - "ti,ivahd" for OMAP4
+ - "ti,iva2.2" for OMAP3
+ - "ti,iva2.1" for OMAP2430
+ - "ti,iva1" for OMAP2420
+- ti,hwmods: "iva"
+
+Examples:
+
+iva {
+ compatible = "ti,ivahd", "ti,iva";
+ ti,hwmods = "iva";
+};
--- /dev/null
+* TI - L3 Network On Chip (NoC)
+
+This version is an implementation of the generic NoC IP
+provided by Arteris.
+
+Required properties:
+- compatible : Should be "ti,omap3-l3-smx" for OMAP3 family
+ Should be "ti,omap4-l3-noc" for OMAP4 family
+- ti,hwmods: "l3_main_1", ... One hwmod for each noc domain.
+
+Examples:
+
+ocp {
+ compatible = "ti,omap4-l3-noc", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";
+};
--- /dev/null
+* TI - MPU (Main Processor Unit) subsystem
+
+The MPU subsystem contain one or several ARM cores
+depending of the version.
+The MPU contain CPUs, GIC, L2 cache and a local PRCM.
+
+Required properties:
+- compatible : Should be "ti,omap3-mpu" for OMAP3
+ Should be "ti,omap4-mpu" for OMAP4
+- ti,hwmods: "mpu"
+
+Examples:
+
+- For an OMAP4 SMP system:
+
+mpu {
+ compatible = "ti,omap4-mpu";
+ ti,hwmods = "mpu";
+};
+
+
+- For an OMAP3 monocore system:
+
+mpu {
+ compatible = "ti,omap3-mpu";
+ ti,hwmods = "mpu";
+};
--- /dev/null
+* Texas Instruments OMAP
+
+OMAP is currently using a static file per SoC family to describe the
+IPs present in the SoC.
+On top of that an omap_device is created to extend the platform_device
+capabilities and to allow binding with one or several hwmods.
+The hwmods will contain all the information to build the device:
+adresse range, irq lines, dma lines, interconnect, PRCM register,
+clock domain, input clocks.
+For the moment just point to the existing hwmod, the next step will be
+to move data from hwmod to device-tree representation.
+
+
+Required properties:
+- compatible: Every devices present in OMAP SoC should be in the
+ form: "ti,XXX"
+- ti,hwmods: list of hwmod names (ascii strings), that comes from the OMAP
+ HW documentation, attached to a device. Must contain at least
+ one hwmod.
+
+Optional properties:
+- ti,no_idle_on_suspend: When present, it prevents the PM to idle the module
+ during suspend.
+
+
+Example:
+
+spinlock@1 {
+ compatible = "ti,omap4-spinlock";
+ ti,hwmods = "spinlock";
+};
+
+
+Boards:
+
+- OMAP3 BeagleBoard : Low cost community board
+ compatible = "ti,omap3-beagle", "ti,omap3"
+
+- OMAP4 SDP : Software Developement Board
+ compatible = "ti,omap4-sdp", "ti,omap4430"
+
+- OMAP4 PandaBoard : Low cost community board
+ compatible = "ti,omap4-panda", "ti,omap4430"
--- /dev/null
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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.
+ */
+/dts-v1/;
+
+/include/ "omap3.dtsi"
+
+/ {
+ model = "TI OMAP3 BeagleBoard";
+ compatible = "ti,omap3-beagle", "ti,omap3";
+
+ /*
+ * Since the initial device tree board file does not create any
+ * devices (MMC, network...), the only way to boot is to provide a
+ * ramdisk.
+ */
+ chosen {
+ bootargs = "root=/dev/ram0 rw console=ttyO2,115200n8 initrd=0x81600000,20M ramdisk_size=20480 no_console_suspend debug earlyprintk";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x20000000>; /* 512 MB */
+ };
+};
--- /dev/null
+/*
+ * Device Tree Source for OMAP3 SoC
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+ compatible = "ti,omap3430", "ti,omap3";
+
+ cpus {
+ cpu@0 {
+ compatible = "arm,cortex-a8";
+ };
+ };
+
+ /*
+ * The soc node represents the soc top level view. It is uses for IPs
+ * that are not memory mapped in the MPU view or for the MPU itself.
+ */
+ soc {
+ compatible = "ti,omap-infra";
+ mpu {
+ compatible = "ti,omap3-mpu";
+ ti,hwmods = "mpu";
+ };
+
+ iva {
+ compatible = "ti,iva2.2";
+ ti,hwmods = "iva";
+
+ dsp {
+ compatible = "ti,omap3-c64";
+ };
+ };
+ };
+
+ /*
+ * XXX: Use a flat representation of the OMAP3 interconnect.
+ * The real OMAP interconnect network is quite complex.
+ * Since that will not bring real advantage to represent that in DT for
+ * the moment, just use a fake OCP bus entry to represent the whole bus
+ * hierarchy.
+ */
+ ocp {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ti,hwmods = "l3_main";
+
+ intc: interrupt-controller@1 {
+ compatible = "ti,omap3-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+};
--- /dev/null
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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.
+ */
+/dts-v1/;
+
+/include/ "omap4.dtsi"
+
+/ {
+ model = "TI OMAP4 PandaBoard";
+ compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4";
+
+ /*
+ * Since the initial device tree board file does not create any
+ * devices (MMC, network...), the only way to boot is to provide a
+ * ramdisk.
+ */
+ chosen {
+ bootargs = "root=/dev/ram0 rw console=ttyO2,115200n8 initrd=0x81600000,20M ramdisk_size=20480 no_console_suspend debug";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x40000000>; /* 1 GB */
+ };
+};
--- /dev/null
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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.
+ */
+/dts-v1/;
+
+/include/ "omap4.dtsi"
+
+/ {
+ model = "TI OMAP4 SDP board";
+ compatible = "ti,omap4-sdp", "ti,omap4430", "ti,omap4";
+
+ /*
+ * Since the initial device tree board file does not create any
+ * devices (MMC, network...), the only way to boot is to provide a
+ * ramdisk.
+ */
+ chosen {
+ bootargs = "root=/dev/ram0 rw console=ttyO2,115200n8 initrd=0x81600000,20M ramdisk_size=20480 no_console_suspend debug";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x40000000>; /* 1 GB */
+ };
+};
--- /dev/null
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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.
+ */
+
+/*
+ * Carveout for multimedia usecases
+ * It should be the last 48MB of the first 512MB memory part
+ * In theory, it should not even exist. That zone should be reserved
+ * dynamically during the .reserve callback.
+ */
+/memreserve/ 0x9d000000 0x03000000;
+
+/include/ "skeleton.dtsi"
+
+/ {
+ compatible = "ti,omap4430", "ti,omap4";
+ interrupt-parent = <&gic>;
+
+ aliases {
+ };
+
+ cpus {
+ cpu@0 {
+ compatible = "arm,cortex-a9";
+ };
+ cpu@1 {
+ compatible = "arm,cortex-a9";
+ };
+ };
+
+ /*
+ * The soc node represents the soc top level view. It is uses for IPs
+ * that are not memory mapped in the MPU view or for the MPU itself.
+ */
+ soc {
+ compatible = "ti,omap-infra";
+ mpu {
+ compatible = "ti,omap4-mpu";
+ ti,hwmods = "mpu";
+ };
+
+ dsp {
+ compatible = "ti,omap3-c64";
+ ti,hwmods = "dsp";
+ };
+
+ iva {
+ compatible = "ti,ivahd";
+ ti,hwmods = "iva";
+ };
+ };
+
+ /*
+ * XXX: Use a flat representation of the OMAP4 interconnect.
+ * The real OMAP interconnect network is quite complex.
+ *
+ * MPU -+-- MPU_PRIVATE - GIC, L2
+ * |
+ * +----------------+----------+
+ * | | |
+ * + +- EMIF - DDR |
+ * | | |
+ * | + +--------+
+ * | | |
+ * | +- L4_ABE - AESS, MCBSP, TIMERs...
+ * | |
+ * +- L3_MAIN --+- L4_CORE - IPs...
+ * |
+ * +- L4_PER - IPs...
+ * |
+ * +- L4_CFG -+- L4_WKUP - IPs...
+ * | |
+ * | +- IPs...
+ * +- IPU ----+
+ * | |
+ * +- DSP ----+
+ * | |
+ * +- DSS ----+
+ *
+ * Since that will not bring real advantage to represent that in DT for
+ * the moment, just use a fake OCP bus entry to represent the whole bus
+ * hierarchy.
+ */
+ ocp {
+ compatible = "ti,omap4-l3-noc", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";
+
+ gic: interrupt-controller@48241000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0x48241000 0x1000>,
+ <0x48240100 0x0100>;
+ };
+ };
+};
depends on ARCH_OMAP2PLUS
config MACH_OMAP_GENERIC
- bool "Generic OMAP board"
- depends on ARCH_OMAP2
+ bool "Generic OMAP2+ board"
+ depends on ARCH_OMAP2PLUS
+ select USE_OF
default y
+ help
+ Support for generic TI OMAP2+ boards using Flattened Device Tree.
+ More information at Documentation/devicetree
config MACH_OMAP2_TUSB6010
bool
/*
- * linux/arch/arm/mach-omap2/board-generic.c
- *
* Copyright (C) 2005 Nokia Corporation
* Author: Paul Mundt <paul.mundt@nokia.com>
*
- * Modified from mach-omap/omap1/board-generic.c
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
- * Code for generic OMAP2 board. Should work on many OMAP2 systems where
- * the bootloader passes the board-specific data to the kernel.
- * Do not put any board specific code to this file; create a new machine
- * type if you need custom low-level initializations.
+ * Modified from the original mach-omap/omap2/board-generic.c did by Paul
+ * to support the OMAP2+ device tree boards with an unique board file.
*
* 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.
*/
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+#include <linux/irqdomain.h>
+#include <linux/i2c/twl.h>
#include <mach/hardware.h>
-#include <asm/mach-types.h>
#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <mach/gpio.h>
-#include <plat/usb.h>
#include <plat/board.h>
#include <plat/common.h>
+#include <mach/omap4-common.h>
+#include "common-board-devices.h"
+
+/*
+ * XXX: Still needed to boot until the i2c & twl driver is adapted to
+ * device-tree
+ */
+static struct twl4030_platform_data sdp4430_twldata = {
+ .irq_base = TWL6030_IRQ_BASE,
+ .irq_end = TWL6030_IRQ_END,
+};
-static struct omap_board_config_kernel generic_config[] = {
+static void __init omap4_i2c_init(void)
+{
+ omap4_pmic_init("twl6030", &sdp4430_twldata);
+}
+
+static struct twl4030_platform_data beagle_twldata = {
+ .irq_base = TWL4030_IRQ_BASE,
+ .irq_end = TWL4030_IRQ_END,
};
-static void __init omap_generic_init_early(void)
+static void __init omap3_i2c_init(void)
{
- omap2_init_common_infrastructure();
+ omap3_pmic_init("twl4030", &beagle_twldata);
}
+static struct of_device_id omap_dt_match_table[] __initdata = {
+ { .compatible = "simple-bus", },
+ { .compatible = "ti,omap-infra", },
+ { }
+};
+
+static struct of_device_id intc_match[] __initdata = {
+ { .compatible = "ti,omap3-intc", },
+ { .compatible = "arm,cortex-a9-gic", },
+ { }
+};
+
static void __init omap_generic_init(void)
{
+ struct device_node *node = of_find_matching_node(NULL, intc_match);
+ if (node)
+ irq_domain_add_simple(node, 0);
+
omap_serial_init();
omap_sdrc_init(NULL, NULL);
- omap_board_config = generic_config;
- omap_board_config_size = ARRAY_SIZE(generic_config);
+
+ of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
}
-static void __init omap_generic_map_io(void)
+static void __init omap4_init(void)
{
- if (cpu_is_omap242x()) {
- omap2_set_globals_242x();
- omap242x_map_common_io();
- } else if (cpu_is_omap243x()) {
- omap2_set_globals_243x();
- omap243x_map_common_io();
- } else if (cpu_is_omap34xx()) {
- omap2_set_globals_3xxx();
- omap34xx_map_common_io();
- } else if (cpu_is_omap44xx()) {
- omap2_set_globals_443x();
- omap44xx_map_common_io();
- }
+ omap4_i2c_init();
+ omap_generic_init();
}
-/* XXX This machine entry name should be updated */
-MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
- /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
- .boot_params = 0x80000100,
+static void __init omap3_init(void)
+{
+ omap3_i2c_init();
+ omap_generic_init();
+}
+
+#if defined(CONFIG_SOC_OMAP2420)
+static const char *omap242x_boards_compat[] __initdata = {
+ "ti,omap2420",
+ NULL,
+};
+
+DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
.reserve = omap_reserve,
- .map_io = omap_generic_map_io,
- .init_early = omap_generic_init_early,
+ .map_io = omap242x_map_io,
+ .init_early = omap2420_init_early,
.init_irq = omap2_init_irq,
.init_machine = omap_generic_init,
.timer = &omap2_timer,
+ .dt_compat = omap242x_boards_compat,
+MACHINE_END
+#endif
+
+#if defined(CONFIG_SOC_OMAP2430)
+static const char *omap243x_boards_compat[] __initdata = {
+ "ti,omap2430",
+ NULL,
+};
+
+DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
+ .reserve = omap_reserve,
+ .map_io = omap243x_map_io,
+ .init_early = omap2430_init_early,
+ .init_irq = omap2_init_irq,
+ .init_machine = omap_generic_init,
+ .timer = &omap2_timer,
+ .dt_compat = omap243x_boards_compat,
+MACHINE_END
+#endif
+
+#if defined(CONFIG_ARCH_OMAP3)
+static const char *omap3_boards_compat[] __initdata = {
+ "ti,omap3",
+ NULL,
+};
+
+DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
+ .reserve = omap_reserve,
+ .map_io = omap3_map_io,
+ .init_early = omap3430_init_early,
+ .init_irq = omap3_init_irq,
+ .init_machine = omap3_init,
+ .timer = &omap3_timer,
+ .dt_compat = omap3_boards_compat,
+MACHINE_END
+#endif
+
+#if defined(CONFIG_ARCH_OMAP4)
+static const char *omap4_boards_compat[] __initdata = {
+ "ti,omap4",
+ NULL,
+};
+
+DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
+ .reserve = omap_reserve,
+ .map_io = omap4_map_io,
+ .init_early = omap4430_init_early,
+ .init_irq = gic_init_irq,
+ .init_machine = omap4_init,
+ .timer = &omap4_timer,
+ .dt_compat = omap4_boards_compat,
MACHINE_END
+#endif
if (cpu_is_omap3630()) {
struct device *mpu_dev, *iva_dev;
- mpu_dev = omap2_get_mpuss_device();
- iva_dev = omap2_get_iva_device();
+ mpu_dev = omap_device_get_by_hwmod_name("mpu");
+ iva_dev = omap_device_get_by_hwmod_name("iva");
if (!mpu_dev || !iva_dev) {
pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/slab.h>
+#include <linux/of.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
struct platform_device *pdev;
char oh_name[L3_MODULES_MAX_LEN];
+ /* If dtb is there, the devices will be created dynamically */
+ if (of_have_populated_dt())
+ return -ENODEV;
+
/*
* To avoid code running on other OMAPs in
* multi-omap builds
#endif
}
-struct omap_device_pm_latency omap_keyboard_latency[] = {
- {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
int __init omap4_keyboard_init(struct omap4_keypad_platform_data
*sdp4430_keypad_data, struct omap_board_data *bdata)
{
keypad_data = sdp4430_keypad_data;
pdev = omap_device_build(name, id, oh, keypad_data,
- sizeof(struct omap4_keypad_platform_data),
- omap_keyboard_latency,
- ARRAY_SIZE(omap_keyboard_latency), 0);
+ sizeof(struct omap4_keypad_platform_data), NULL, 0, 0);
if (IS_ERR(pdev)) {
WARN(1, "Can't build omap_device for %s:%s.\n",
}
#if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
-static struct omap_device_pm_latency mbox_latencies[] = {
- [0] = {
- .activate_func = omap_device_enable_hwmods,
- .deactivate_func = omap_device_idle_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static inline void omap_init_mbox(void)
{
struct omap_hwmod *oh;
return;
}
- pdev = omap_device_build("omap-mailbox", -1, oh, NULL, 0,
- mbox_latencies, ARRAY_SIZE(mbox_latencies), 0);
+ pdev = omap_device_build("omap-mailbox", -1, oh, NULL, 0, NULL, 0, 0);
WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
__func__, PTR_ERR(pdev));
}
#include <plat/mcspi.h>
-struct omap_device_pm_latency omap_mcspi_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
{
struct platform_device *pdev;
spi_num++;
pdev = omap_device_build(name, spi_num, oh, pdata,
- sizeof(*pdata), omap_mcspi_latency,
- ARRAY_SIZE(omap_mcspi_latency), 0);
+ sizeof(*pdata), NULL, 0, 0);
WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
name, oh->name);
kfree(pdata);
arch_initcall(omap2_init_devices);
#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
-static struct omap_device_pm_latency omap_wdt_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static int __init omap_init_wdt(void)
{
int id = -1;
return -EINVAL;
}
- pdev = omap_device_build(dev_name, id, oh, NULL, 0,
- omap_wdt_latency,
- ARRAY_SIZE(omap_wdt_latency), 0);
+ pdev = omap_device_build(dev_name, id, oh, NULL, 0, NULL, 0, 0);
WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
dev_name, oh->name);
return 0;
},
};
-static struct omap_device_pm_latency omap_dss_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
struct omap_dss_hwmod_data {
const char *oh_name;
const char *dev_name;
pdev = omap_device_build(curr_dss_hwmod[i].dev_name,
curr_dss_hwmod[i].id, oh, &pdata,
sizeof(struct omap_display_platform_data),
- omap_dss_latency,
- ARRAY_SIZE(omap_dss_latency), 0);
+ NULL, 0, 0);
if (WARN((IS_ERR(pdev)), "Could not build omap_device for %s\n",
curr_dss_hwmod[i].oh_name))
[CCDN] = 0xd8,
};
-static struct omap_device_pm_latency omap2_dma_latency[] = {
- {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static void __iomem *dma_base;
static inline void dma_write(u32 val, int reg, int lch)
{
p->errata = configure_dma_errata();
- pdev = omap_device_build(name, 0, oh, p, sizeof(*p),
- omap2_dma_latency, ARRAY_SIZE(omap2_dma_latency), 0);
+ pdev = omap_device_build(name, 0, oh, p, sizeof(*p), NULL, 0, 0);
kfree(p);
if (IS_ERR(pdev)) {
pr_err("%s: Can't build omap_device for %s:%s.\n",
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
-static struct omap_device_pm_latency omap_gpio_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
{
struct platform_device *pdev;
}
pdev = omap_device_build(name, id - 1, oh, pdata,
- sizeof(*pdata), omap_gpio_latency,
- ARRAY_SIZE(omap_gpio_latency),
- false);
+ sizeof(*pdata), NULL, 0, false);
kfree(pdata);
if (IS_ERR(pdev)) {
return 0;
}
-static struct omap_device_pm_latency omap_hsmmc_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
- /*
- * XXX There should also be an entry here to power off/on the
- * MMC regulators/PBIAS cells, etc.
- */
-};
-
#define MAX_OMAP_MMC_HWMOD_NAME_LEN 16
void __init omap_init_hsmmc(struct omap2_hsmmc_info *hsmmcinfo, int ctrl_nr)
{
struct omap_hwmod *oh;
struct platform_device *pdev;
- struct omap_device_pm_latency *ohl;
char oh_name[MAX_OMAP_MMC_HWMOD_NAME_LEN];
struct omap_mmc_platform_data *mmc_data;
struct omap_mmc_dev_attr *mmc_dev_attr;
char *name;
int l;
- int ohl_cnt = 0;
mmc_data = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL);
if (!mmc_data) {
omap_hsmmc_mux(mmc_data, (ctrl_nr - 1));
name = "omap_hsmmc";
- ohl = omap_hsmmc_latency;
- ohl_cnt = ARRAY_SIZE(omap_hsmmc_latency);
l = snprintf(oh_name, MAX_OMAP_MMC_HWMOD_NAME_LEN,
"mmc%d", ctrl_nr);
}
pdev = omap_device_build(name, ctrl_nr - 1, oh, mmc_data,
- sizeof(struct omap_mmc_platform_data), ohl, ohl_cnt, false);
+ sizeof(struct omap_mmc_platform_data), NULL, 0, false);
if (IS_ERR(pdev)) {
WARN(1, "Can't build omap_device for %s:%s.\n", name, oh->name);
kfree(mmc_data->slots[0].name);
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
-struct omap_device_pm_latency omap_spinlock_latency[] = {
- {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- }
-};
-
int __init hwspinlocks_init(void)
{
int retval = 0;
if (oh == NULL)
return -EINVAL;
- pdev = omap_device_build(dev_name, 0, oh, NULL, 0,
- omap_spinlock_latency,
- ARRAY_SIZE(omap_spinlock_latency), false);
+ pdev = omap_device_build(dev_name, 0, oh, NULL, 0, NULL, 0, false);
if (IS_ERR(pdev)) {
pr_err("Can't build omap_device for %s:%s\n", dev_name,
oh_name);
return 0;
}
-struct omap_device_pm_latency omap2_mcbsp_latency[] = {
- {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
{
int id, count = 1;
count++;
}
pdev = omap_device_build_ss(name, id, oh_device, count, pdata,
- sizeof(*pdata), omap2_mcbsp_latency,
- ARRAY_SIZE(omap2_mcbsp_latency), false);
+ sizeof(*pdata), NULL, 0, false);
kfree(pdata);
if (IS_ERR(pdev)) {
pr_err("%s: Can't build omap_device for %s:%s.\n", __func__,
return IRQ_HANDLED;
}
-static int __init omap4_l3_probe(struct platform_device *pdev)
+static int __devinit omap4_l3_probe(struct platform_device *pdev)
{
static struct omap4_l3 *l3;
struct resource *res;
return ret;
}
-static int __exit omap4_l3_remove(struct platform_device *pdev)
+static int __devexit omap4_l3_remove(struct platform_device *pdev)
{
struct omap4_l3 *l3 = platform_get_drvdata(pdev);
return 0;
}
+#if defined(CONFIG_OF)
+static const struct of_device_id l3_noc_match[] = {
+ {.compatible = "ti,omap4-l3-noc", },
+ {},
+}
+MODULE_DEVICE_TABLE(of, l3_noc_match);
+#else
+#define l3_noc_match NULL
+#endif
+
static struct platform_driver omap4_l3_driver = {
- .remove = __exit_p(omap4_l3_remove),
- .driver = {
- .name = "omap_l3_noc",
+ .probe = omap4_l3_probe,
+ .remove = __devexit_p(omap4_l3_remove),
+ .driver = {
+ .name = "omap_l3_noc",
+ .owner = THIS_MODULE,
+ .of_match_table = l3_noc_match,
},
};
static int __init omap4_l3_init(void)
{
- return platform_driver_probe(&omap4_l3_driver, omap4_l3_probe);
+ return platform_driver_register(&omap4_l3_driver);
}
postcore_initcall_sync(omap4_l3_init);
static struct omap_device_pm_latency *pm_lats;
-static struct device *mpu_dev;
-static struct device *iva_dev;
-static struct device *l3_dev;
-static struct device *dsp_dev;
-
-struct device *omap2_get_mpuss_device(void)
-{
- WARN_ON_ONCE(!mpu_dev);
- return mpu_dev;
-}
-
-struct device *omap2_get_iva_device(void)
-{
- WARN_ON_ONCE(!iva_dev);
- return iva_dev;
-}
-
-struct device *omap2_get_l3_device(void)
-{
- WARN_ON_ONCE(!l3_dev);
- return l3_dev;
-}
-
-struct device *omap4_get_dsp_device(void)
-{
- WARN_ON_ONCE(!dsp_dev);
- return dsp_dev;
-}
-EXPORT_SYMBOL(omap4_get_dsp_device);
-
-/* static int _init_omap_device(struct omap_hwmod *oh, void *user) */
-static int _init_omap_device(char *name, struct device **new_dev)
+static int _init_omap_device(char *name)
{
struct omap_hwmod *oh;
struct platform_device *pdev;
__func__, name))
return -ENODEV;
- *new_dev = &pdev->dev;
-
return 0;
}
*/
static void omap2_init_processor_devices(void)
{
- _init_omap_device("mpu", &mpu_dev);
+ _init_omap_device("mpu");
if (omap3_has_iva())
- _init_omap_device("iva", &iva_dev);
+ _init_omap_device("iva");
if (cpu_is_omap44xx()) {
- _init_omap_device("l3_main_1", &l3_dev);
- _init_omap_device("dsp", &dsp_dev);
- _init_omap_device("iva", &iva_dev);
+ _init_omap_device("l3_main_1");
+ _init_omap_device("dsp");
+ _init_omap_device("iva");
} else {
- _init_omap_device("l3_main", &l3_dev);
+ _init_omap_device("l3_main");
}
}
* in the opp entry
*/
static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
- struct device *dev)
+ const char *oh_name)
{
struct voltagedomain *voltdm;
struct clk *clk;
struct opp *opp;
unsigned long freq, bootup_volt;
+ struct device *dev;
- if (!vdd_name || !clk_name || !dev) {
+ if (!vdd_name || !clk_name || !oh_name) {
pr_err("%s: invalid parameters\n", __func__);
goto exit;
}
+ dev = omap_device_get_by_hwmod_name(oh_name);
+ if (IS_ERR(dev)) {
+ pr_err("%s: Unable to get dev pointer for hwmod %s\n",
+ __func__, oh_name);
+ goto exit;
+ }
+
voltdm = voltdm_lookup(vdd_name);
if (IS_ERR(voltdm)) {
pr_err("%s: unable to get vdd pointer for vdd_%s\n",
if (!cpu_is_omap34xx())
return;
- omap2_set_init_voltage("mpu_iva", "dpll1_ck", mpu_dev);
- omap2_set_init_voltage("core", "l3_ick", l3_dev);
+ omap2_set_init_voltage("mpu_iva", "dpll1_ck", "mpu");
+ omap2_set_init_voltage("core", "l3_ick", "l3_main");
}
static void __init omap4_init_voltages(void)
if (!cpu_is_omap44xx())
return;
- omap2_set_init_voltage("mpu", "dpll_mpu_ck", mpu_dev);
- omap2_set_init_voltage("core", "l3_div_ck", l3_dev);
- omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", iva_dev);
+ omap2_set_init_voltage("mpu", "dpll_mpu_ck", "mpu");
+ omap2_set_init_voltage("core", "l3_div_ck", "l3_main_1");
+ omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva");
}
static int __init omap2_common_pm_init(void)
{
- omap2_init_processor_devices();
+ if (!of_have_populated_dt())
+ omap2_init_processor_devices();
omap_pm_if_init();
return 0;
static LIST_HEAD(uart_list);
static u8 num_uarts;
-static int uart_idle_hwmod(struct omap_device *od)
-{
- omap_hwmod_idle(od->hwmods[0]);
-
- return 0;
-}
-
-static int uart_enable_hwmod(struct omap_device *od)
-{
- omap_hwmod_enable(od->hwmods[0]);
-
- return 0;
-}
-
-static struct omap_device_pm_latency omap_uart_latency[] = {
- {
- .deactivate_func = uart_idle_hwmod,
- .activate_func = uart_enable_hwmod,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static inline unsigned int __serial_read_reg(struct uart_port *up,
int offset)
{
return;
pdev = omap_device_build(name, uart->num, oh, pdata, pdata_size,
- omap_uart_latency,
- ARRAY_SIZE(omap_uart_latency), false);
+ NULL, 0, false);
WARN(IS_ERR(pdev), "Could not build omap_device for %s: %s.\n",
name, oh->name);
static bool sr_enable_on_init;
-static struct omap_device_pm_latency omap_sr_latency[] = {
- {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST
- },
-};
-
/* Read EFUSE values from control registers for OMAP3430 */
static void __init sr_set_nvalues(struct omap_volt_data *volt_data,
struct omap_sr_data *sr_data)
sr_data->enable_on_init = sr_enable_on_init;
pdev = omap_device_build(name, i, oh, sr_data, sizeof(*sr_data),
- omap_sr_latency,
- ARRAY_SIZE(omap_sr_latency), 0);
+ NULL, 0, 0);
if (IS_ERR(pdev))
pr_warning("%s: Could not build omap_device for %s: %s.\n\n",
__func__, name, oh->name);
static u64 musb_dmamask = DMA_BIT_MASK(32);
-static struct omap_device_pm_latency omap_musb_latency[] = {
- {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static void usb_musb_mux_init(struct omap_musb_board_data *board_data)
{
switch (board_data->interface_type) {
return;
pdev = omap_device_build(name, bus_id, oh, &musb_plat,
- sizeof(musb_plat), omap_musb_latency,
- ARRAY_SIZE(omap_musb_latency), false);
+ sizeof(musb_plat), NULL, 0, false);
if (IS_ERR(pdev)) {
pr_err("Could not build omap_device for %s %s\n",
name, oh_name);
omap_pm_set_max_mpu_wakeup_lat(dev, t);
}
-static struct omap_device_pm_latency omap_i2c_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
-
static inline int omap2_i2c_add_bus(int bus_id)
{
int l;
pdata->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat;
pdev = omap_device_build(name, bus_id, oh, pdata,
sizeof(struct omap_i2c_bus_platform_data),
- omap_i2c_latency, ARRAY_SIZE(omap_i2c_latency), 0);
+ NULL, 0, 0);
WARN(IS_ERR(pdev), "Could not build omap_device for %s\n", name);
return PTR_ERR(pdev);
int pm_lats_cnt, int is_early_device);
void __iomem *omap_device_get_rt_va(struct omap_device *od);
+struct device *omap_device_get_by_hwmod_name(const char *oh_name);
/* OMAP PM interface */
int omap_device_align_pm_lat(struct platform_device *pdev,
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/notifier.h>
#include <plat/omap_device.h>
#include <plat/omap_hwmod.h>
static int omap_device_register(struct platform_device *pdev);
static int omap_early_device_register(struct platform_device *pdev);
+static struct omap_device *omap_device_alloc(struct platform_device *pdev,
+ struct omap_hwmod **ohs, int oh_cnt,
+ struct omap_device_pm_latency *pm_lats,
+ int pm_lats_cnt);
+static void omap_device_delete(struct omap_device *od);
+
+
+static struct omap_device_pm_latency omap_default_latency[] = {
+ {
+ .deactivate_func = omap_device_idle_hwmods,
+ .activate_func = omap_device_enable_hwmods,
+ .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
+ }
+};
/* Private functions */
}
+static struct dev_pm_domain omap_device_pm_domain;
+
+/**
+ * omap_device_build_from_dt - build an omap_device with multiple hwmods
+ * @pdev_name: name of the platform_device driver to use
+ * @pdev_id: this platform_device's connection ID
+ * @oh: ptr to the single omap_hwmod that backs this omap_device
+ * @pdata: platform_data ptr to associate with the platform_device
+ * @pdata_len: amount of memory pointed to by @pdata
+ * @pm_lats: pointer to a omap_device_pm_latency array for this device
+ * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
+ * @is_early_device: should the device be registered as an early device or not
+ *
+ * Function for building an omap_device already registered from device-tree
+ *
+ * Returns 0 or PTR_ERR() on error.
+ */
+static int omap_device_build_from_dt(struct platform_device *pdev)
+{
+ struct omap_hwmod **hwmods;
+ struct omap_device *od;
+ struct omap_hwmod *oh;
+ struct device_node *node = pdev->dev.of_node;
+ const char *oh_name;
+ int oh_cnt, i, ret = 0;
+
+ oh_cnt = of_property_count_strings(node, "ti,hwmods");
+ if (!oh_cnt || IS_ERR_VALUE(oh_cnt)) {
+ dev_warn(&pdev->dev, "No 'hwmods' to build omap_device\n");
+ return -ENODEV;
+ }
+
+ hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL);
+ if (!hwmods) {
+ ret = -ENOMEM;
+ goto odbfd_exit;
+ }
+
+ for (i = 0; i < oh_cnt; i++) {
+ of_property_read_string_index(node, "ti,hwmods", i, &oh_name);
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ dev_err(&pdev->dev, "Cannot lookup hwmod '%s'\n",
+ oh_name);
+ ret = -EINVAL;
+ goto odbfd_exit1;
+ }
+ hwmods[i] = oh;
+ }
+
+ od = omap_device_alloc(pdev, hwmods, oh_cnt, NULL, 0);
+ if (!od) {
+ dev_err(&pdev->dev, "Cannot allocate omap_device for :%s\n",
+ oh_name);
+ ret = PTR_ERR(od);
+ goto odbfd_exit1;
+ }
+
+ if (of_get_property(node, "ti,no_idle_on_suspend", NULL))
+ omap_device_disable_idle_on_suspend(pdev);
+
+ pdev->dev.pm_domain = &omap_device_pm_domain;
+
+odbfd_exit1:
+ kfree(hwmods);
+odbfd_exit:
+ return ret;
+}
+
+static int _omap_device_notifier_call(struct notifier_block *nb,
+ unsigned long event, void *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ switch (event) {
+ case BUS_NOTIFY_ADD_DEVICE:
+ if (pdev->dev.of_node)
+ omap_device_build_from_dt(pdev);
+ break;
+
+ case BUS_NOTIFY_DEL_DEVICE:
+ if (pdev->archdata.od)
+ omap_device_delete(pdev->archdata.od);
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+
/* Public functions for use by core code */
/**
return 0;
}
+/**
+ * omap_device_alloc - allocate an omap_device
+ * @pdev: platform_device that will be included in this omap_device
+ * @oh: ptr to the single omap_hwmod that backs this omap_device
+ * @pdata: platform_data ptr to associate with the platform_device
+ * @pdata_len: amount of memory pointed to by @pdata
+ * @pm_lats: pointer to a omap_device_pm_latency array for this device
+ * @pm_lats_cnt: ARRAY_SIZE() of @pm_lats
+ *
+ * Convenience function for allocating an omap_device structure and filling
+ * hwmods, resources and pm_latency attributes.
+ *
+ * Returns an struct omap_device pointer or ERR_PTR() on error;
+ */
+static struct omap_device *omap_device_alloc(struct platform_device *pdev,
+ struct omap_hwmod **ohs, int oh_cnt,
+ struct omap_device_pm_latency *pm_lats,
+ int pm_lats_cnt)
+{
+ int ret = -ENOMEM;
+ struct omap_device *od;
+ struct resource *res = NULL;
+ int i, res_count;
+ struct omap_hwmod **hwmods;
+
+ od = kzalloc(sizeof(struct omap_device), GFP_KERNEL);
+ if (!od) {
+ ret = -ENOMEM;
+ goto oda_exit1;
+ }
+ od->hwmods_cnt = oh_cnt;
+
+ hwmods = kmemdup(ohs, sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL);
+ if (!hwmods)
+ goto oda_exit2;
+
+ od->hwmods = hwmods;
+ od->pdev = pdev;
+
+ /*
+ * HACK: Ideally the resources from DT should match, and hwmod
+ * should just add the missing ones. Since the name is not
+ * properly populated by DT, stick to hwmod resources only.
+ */
+ if (pdev->num_resources && pdev->resource)
+ dev_warn(&pdev->dev, "%s(): resources already allocated %d\n",
+ __func__, pdev->num_resources);
+
+ res_count = omap_device_count_resources(od);
+ if (res_count > 0) {
+ dev_dbg(&pdev->dev, "%s(): resources allocated from hwmod %d\n",
+ __func__, res_count);
+ res = kzalloc(sizeof(struct resource) * res_count, GFP_KERNEL);
+ if (!res)
+ goto oda_exit3;
+
+ omap_device_fill_resources(od, res);
+
+ ret = platform_device_add_resources(pdev, res, res_count);
+ kfree(res);
+
+ if (ret)
+ goto oda_exit3;
+ }
+
+ if (!pm_lats) {
+ pm_lats = omap_default_latency;
+ pm_lats_cnt = ARRAY_SIZE(omap_default_latency);
+ }
+
+ od->pm_lats_cnt = pm_lats_cnt;
+ od->pm_lats = kmemdup(pm_lats,
+ sizeof(struct omap_device_pm_latency) * pm_lats_cnt,
+ GFP_KERNEL);
+ if (!od->pm_lats)
+ goto oda_exit3;
+
+ pdev->archdata.od = od;
+
+ for (i = 0; i < oh_cnt; i++) {
+ hwmods[i]->od = od;
+ _add_hwmod_clocks_clkdev(od, hwmods[i]);
+ }
+
+ return od;
+
+oda_exit3:
+ kfree(hwmods);
+oda_exit2:
+ kfree(od);
+oda_exit1:
+ dev_err(&pdev->dev, "omap_device: build failed (%d)\n", ret);
+
+ return ERR_PTR(ret);
+}
+
+static void omap_device_delete(struct omap_device *od)
+{
+ if (!od)
+ return;
+
+ od->pdev->archdata.od = NULL;
+ kfree(od->pm_lats);
+ kfree(od->hwmods);
+ kfree(od);
+}
+
/**
* omap_device_build - build and register an omap_device with one omap_hwmod
* @pdev_name: name of the platform_device driver to use
int ret = -ENOMEM;
struct platform_device *pdev;
struct omap_device *od;
- struct resource *res = NULL;
- int i, res_count;
- struct omap_hwmod **hwmods;
if (!ohs || oh_cnt == 0 || !pdev_name)
return ERR_PTR(-EINVAL);
goto odbs_exit;
}
- pr_debug("omap_device: %s: building with %d hwmods\n", pdev_name,
- oh_cnt);
+ /* Set the dev_name early to allow dev_xxx in omap_device_alloc */
+ if (pdev->id != -1)
+ dev_set_name(&pdev->dev, "%s.%d", pdev->name, pdev->id);
+ else
+ dev_set_name(&pdev->dev, "%s", pdev->name);
- od = kzalloc(sizeof(struct omap_device), GFP_KERNEL);
- if (!od) {
- ret = -ENOMEM;
+ od = omap_device_alloc(pdev, ohs, oh_cnt, pm_lats, pm_lats_cnt);
+ if (!od)
goto odbs_exit1;
- }
- od->hwmods_cnt = oh_cnt;
-
- hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt,
- GFP_KERNEL);
- if (!hwmods)
- goto odbs_exit2;
-
- memcpy(hwmods, ohs, sizeof(struct omap_hwmod *) * oh_cnt);
- od->hwmods = hwmods;
- od->pdev = pdev;
-
- res_count = omap_device_count_resources(od);
- if (res_count > 0) {
- res = kzalloc(sizeof(struct resource) * res_count, GFP_KERNEL);
- if (!res)
- goto odbs_exit3;
-
- omap_device_fill_resources(od, res);
-
- ret = platform_device_add_resources(pdev, res, res_count);
- kfree(res);
-
- if (ret)
- goto odbs_exit3;
- }
ret = platform_device_add_data(pdev, pdata, pdata_len);
if (ret)
- goto odbs_exit3;
-
- pdev->archdata.od = od;
+ goto odbs_exit2;
if (is_early_device)
ret = omap_early_device_register(pdev);
else
ret = omap_device_register(pdev);
if (ret)
- goto odbs_exit3;
-
- od->pm_lats = pm_lats;
- od->pm_lats_cnt = pm_lats_cnt;
-
- for (i = 0; i < oh_cnt; i++) {
- hwmods[i]->od = od;
- _add_hwmod_clocks_clkdev(od, hwmods[i]);
- }
+ goto odbs_exit2;
return pdev;
-odbs_exit3:
- kfree(hwmods);
odbs_exit2:
- kfree(od);
+ omap_device_delete(od);
odbs_exit1:
platform_device_put(pdev);
odbs_exit:
return omap_hwmod_get_mpu_rt_va(od->hwmods[0]);
}
+/**
+ * omap_device_get_by_hwmod_name() - convert a hwmod name to
+ * device pointer.
+ * @oh_name: name of the hwmod device
+ *
+ * Returns back a struct device * pointer associated with a hwmod
+ * device represented by a hwmod_name
+ */
+struct device *omap_device_get_by_hwmod_name(const char *oh_name)
+{
+ struct omap_hwmod *oh;
+
+ if (!oh_name) {
+ WARN(1, "%s: no hwmod name!\n", __func__);
+ return ERR_PTR(-EINVAL);
+ }
+
+ oh = omap_hwmod_lookup(oh_name);
+ if (IS_ERR_OR_NULL(oh)) {
+ WARN(1, "%s: no hwmod for %s\n", __func__,
+ oh_name);
+ return ERR_PTR(oh ? PTR_ERR(oh) : -ENODEV);
+ }
+ if (IS_ERR_OR_NULL(oh->od)) {
+ WARN(1, "%s: no omap_device for %s\n", __func__,
+ oh_name);
+ return ERR_PTR(oh->od ? PTR_ERR(oh->od) : -ENODEV);
+ }
+
+ if (IS_ERR_OR_NULL(oh->od->pdev))
+ return ERR_PTR(oh->od->pdev ? PTR_ERR(oh->od->pdev) : -ENODEV);
+
+ return &oh->od->pdev->dev;
+}
+EXPORT_SYMBOL(omap_device_get_by_hwmod_name);
+
/*
* Public functions intended for use in omap_device_pm_latency
* .activate_func and .deactivate_func function pointers
.parent = &platform_bus,
};
+static struct notifier_block platform_nb = {
+ .notifier_call = _omap_device_notifier_call,
+};
+
static int __init omap_device_init(void)
{
+ bus_register_notifier(&platform_bus_type, &platform_nb);
return device_register(&omap_device_parent);
}
core_initcall(omap_device_init);
}
EXPORT_SYMBOL_GPL(of_property_read_string);
+/**
+ * of_property_read_string_index - Find and read a string from a multiple
+ * strings property.
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @index: index of the string in the list of strings
+ * @out_string: pointer to null terminated return string, modified only if
+ * return value is 0.
+ *
+ * Search for a property in a device tree node and retrieve a null
+ * terminated string value (pointer to data, not a copy) in the list of strings
+ * contained in that property.
+ * Returns 0 on success, -EINVAL if the property does not exist, -ENODATA if
+ * property does not have a value, and -EILSEQ if the string is not
+ * null-terminated within the length of the property data.
+ *
+ * The out_string pointer is modified only if a valid string can be decoded.
+ */
+int of_property_read_string_index(struct device_node *np, const char *propname,
+ int index, const char **output)
+{
+ struct property *prop = of_find_property(np, propname, NULL);
+ int i = 0;
+ size_t l = 0, total = 0;
+ const char *p;
+
+ if (!prop)
+ return -EINVAL;
+ if (!prop->value)
+ return -ENODATA;
+ if (strnlen(prop->value, prop->length) >= prop->length)
+ return -EILSEQ;
+
+ p = prop->value;
+
+ for (i = 0; total < prop->length; total += l, p += l) {
+ l = strlen(p) + 1;
+ if ((*p != 0) && (i++ == index)) {
+ *output = p;
+ return 0;
+ }
+ }
+ return -ENODATA;
+}
+EXPORT_SYMBOL_GPL(of_property_read_string_index);
+
+
+/**
+ * of_property_count_strings - Find and return the number of strings from a
+ * multiple strings property.
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ *
+ * Search for a property in a device tree node and retrieve the number of null
+ * terminated string contain in it. Returns the number of strings on
+ * success, -EINVAL if the property does not exist, -ENODATA if property
+ * does not have a value, and -EILSEQ if the string is not null-terminated
+ * within the length of the property data.
+ */
+int of_property_count_strings(struct device_node *np, const char *propname)
+{
+ struct property *prop = of_find_property(np, propname, NULL);
+ int i = 0;
+ size_t l = 0, total = 0;
+ const char *p;
+
+ if (!prop)
+ return -EINVAL;
+ if (!prop->value)
+ return -ENODATA;
+ if (strnlen(prop->value, prop->length) >= prop->length)
+ return -EILSEQ;
+
+ p = prop->value;
+
+ for (i = 0; total < prop->length; total += l, p += l) {
+ l = strlen(p) + 1;
+ if (*p != 0)
+ i++;
+ }
+ return i;
+}
+EXPORT_SYMBOL_GPL(of_property_count_strings);
+
/**
* of_parse_phandle - Resolve a phandle property to a device_node pointer
* @np: Pointer to device node holding phandle property
extern int of_property_read_string(struct device_node *np,
const char *propname,
const char **out_string);
+extern int of_property_read_string_index(struct device_node *np,
+ const char *propname,
+ int index, const char **output);
+extern int of_property_count_strings(struct device_node *np,
+ const char *propname);
extern int of_device_is_compatible(const struct device_node *device,
const char *);
extern int of_device_is_available(const struct device_node *device);
return -ENOSYS;
}
+static inline int of_property_read_string_index(struct device_node *np,
+ const char *propname, int index,
+ const char **out_string)
+{
+ return -ENOSYS;
+}
+
+static inline int of_property_count_strings(struct device_node *np,
+ const char *propname)
+{
+ return -ENOSYS;
+}
+
static inline const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp)
git.openpandora.org / pandora-kernel.git / commitdiff