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3528c58eb9
All of the device init and device driver interaction with omap_device is done using platform_device pointers. To make this more explicit, have omap_device return a platform_device pointer instead of an omap_device pointer. All current users of the omap_device pointer were only using it to get at the platform_device pointer or struct device pointer, so fixing all of the users was trivial. This also makes it more difficult for device init code to directly access members of struct omap_device, and allows for easier changing of omap_device internals. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
735 lines
17 KiB
C
735 lines
17 KiB
C
/*
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* linux/arch/arm/mach-omap2/devices.c
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*
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* OMAP2 platform device setup/initialization
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/mach-types.h>
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#include <asm/mach/map.h>
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#include <asm/pmu.h>
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#include <plat/tc.h>
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#include <plat/board.h>
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#include <plat/mcbsp.h>
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#include <mach/gpio.h>
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#include <plat/mmc.h>
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#include <plat/dma.h>
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#include <plat/omap_hwmod.h>
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#include <plat/omap_device.h>
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#include <plat/omap4-keypad.h>
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#include "mux.h"
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#include "control.h"
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#include "devices.h"
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#define L3_MODULES_MAX_LEN 12
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#define L3_MODULES 3
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static int __init omap3_l3_init(void)
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{
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int l;
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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char oh_name[L3_MODULES_MAX_LEN];
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/*
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* To avoid code running on other OMAPs in
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* multi-omap builds
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*/
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if (!(cpu_is_omap34xx()))
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return -ENODEV;
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l = snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
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oh = omap_hwmod_lookup(oh_name);
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if (!oh)
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pr_err("could not look up %s\n", oh_name);
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pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0,
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NULL, 0, 0);
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WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
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return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
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}
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postcore_initcall(omap3_l3_init);
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static int __init omap4_l3_init(void)
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{
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int l, i;
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struct omap_hwmod *oh[3];
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struct platform_device *pdev;
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char oh_name[L3_MODULES_MAX_LEN];
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/*
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* To avoid code running on other OMAPs in
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* multi-omap builds
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*/
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if (!(cpu_is_omap44xx()))
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return -ENODEV;
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for (i = 0; i < L3_MODULES; i++) {
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l = snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main_%d", i+1);
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oh[i] = omap_hwmod_lookup(oh_name);
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if (!(oh[i]))
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pr_err("could not look up %s\n", oh_name);
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}
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pdev = omap_device_build_ss("omap_l3_noc", 0, oh, 3, NULL,
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0, NULL, 0, 0);
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WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
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return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
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}
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postcore_initcall(omap4_l3_init);
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#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
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static struct resource omap2cam_resources[] = {
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{
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.start = OMAP24XX_CAMERA_BASE,
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.end = OMAP24XX_CAMERA_BASE + 0xfff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_24XX_CAM_IRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device omap2cam_device = {
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.name = "omap24xxcam",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap2cam_resources),
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.resource = omap2cam_resources,
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};
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#endif
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static struct resource omap3isp_resources[] = {
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{
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.start = OMAP3430_ISP_BASE,
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.end = OMAP3430_ISP_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CCP2_BASE,
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.end = OMAP3430_ISP_CCP2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CCDC_BASE,
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.end = OMAP3430_ISP_CCDC_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_HIST_BASE,
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.end = OMAP3430_ISP_HIST_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_H3A_BASE,
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.end = OMAP3430_ISP_H3A_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_PREV_BASE,
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.end = OMAP3430_ISP_PREV_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_RESZ_BASE,
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.end = OMAP3430_ISP_RESZ_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_SBL_BASE,
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.end = OMAP3430_ISP_SBL_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CSI2A_REGS1_BASE,
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.end = OMAP3430_ISP_CSI2A_REGS1_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3430_ISP_CSIPHY2_BASE,
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.end = OMAP3430_ISP_CSIPHY2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSI2A_REGS2_BASE,
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.end = OMAP3630_ISP_CSI2A_REGS2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSI2C_REGS1_BASE,
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.end = OMAP3630_ISP_CSI2C_REGS1_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSIPHY1_BASE,
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.end = OMAP3630_ISP_CSIPHY1_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = OMAP3630_ISP_CSI2C_REGS2_BASE,
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.end = OMAP3630_ISP_CSI2C_REGS2_END,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_34XX_CAM_IRQ,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device omap3isp_device = {
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.name = "omap3isp",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap3isp_resources),
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.resource = omap3isp_resources,
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};
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int omap3_init_camera(struct isp_platform_data *pdata)
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{
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omap3isp_device.dev.platform_data = pdata;
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return platform_device_register(&omap3isp_device);
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}
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static inline void omap_init_camera(void)
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{
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#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
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if (cpu_is_omap24xx())
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platform_device_register(&omap2cam_device);
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#endif
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}
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struct omap_device_pm_latency omap_keyboard_latency[] = {
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{
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.deactivate_func = omap_device_idle_hwmods,
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.activate_func = omap_device_enable_hwmods,
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.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
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},
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};
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int __init omap4_keyboard_init(struct omap4_keypad_platform_data
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*sdp4430_keypad_data, struct omap_board_data *bdata)
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{
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struct platform_device *pdev;
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struct omap_hwmod *oh;
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struct omap4_keypad_platform_data *keypad_data;
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unsigned int id = -1;
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char *oh_name = "kbd";
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char *name = "omap4-keypad";
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oh = omap_hwmod_lookup(oh_name);
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if (!oh) {
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pr_err("Could not look up %s\n", oh_name);
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return -ENODEV;
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}
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keypad_data = sdp4430_keypad_data;
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pdev = omap_device_build(name, id, oh, keypad_data,
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sizeof(struct omap4_keypad_platform_data),
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omap_keyboard_latency,
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ARRAY_SIZE(omap_keyboard_latency), 0);
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if (IS_ERR(pdev)) {
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WARN(1, "Can't build omap_device for %s:%s.\n",
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name, oh->name);
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return PTR_ERR(pdev);
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}
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oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
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return 0;
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}
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#if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
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static struct omap_device_pm_latency mbox_latencies[] = {
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[0] = {
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.activate_func = omap_device_enable_hwmods,
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.deactivate_func = omap_device_idle_hwmods,
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.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
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},
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};
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static inline void omap_init_mbox(void)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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oh = omap_hwmod_lookup("mailbox");
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if (!oh) {
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pr_err("%s: unable to find hwmod\n", __func__);
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return;
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}
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pdev = omap_device_build("omap-mailbox", -1, oh, NULL, 0,
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mbox_latencies, ARRAY_SIZE(mbox_latencies), 0);
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WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
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__func__, PTR_ERR(pdev));
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}
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#else
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static inline void omap_init_mbox(void) { }
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#endif /* CONFIG_OMAP_MBOX_FWK */
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static inline void omap_init_sti(void) {}
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#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
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static struct platform_device omap_pcm = {
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.name = "omap-pcm-audio",
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.id = -1,
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};
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/*
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* OMAP2420 has 2 McBSP ports
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* OMAP2430 has 5 McBSP ports
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* OMAP3 has 5 McBSP ports
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* OMAP4 has 4 McBSP ports
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*/
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OMAP_MCBSP_PLATFORM_DEVICE(1);
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OMAP_MCBSP_PLATFORM_DEVICE(2);
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OMAP_MCBSP_PLATFORM_DEVICE(3);
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OMAP_MCBSP_PLATFORM_DEVICE(4);
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OMAP_MCBSP_PLATFORM_DEVICE(5);
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static void omap_init_audio(void)
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{
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platform_device_register(&omap_mcbsp1);
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platform_device_register(&omap_mcbsp2);
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if (cpu_is_omap243x() || cpu_is_omap34xx() || cpu_is_omap44xx()) {
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platform_device_register(&omap_mcbsp3);
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platform_device_register(&omap_mcbsp4);
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}
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if (cpu_is_omap243x() || cpu_is_omap34xx())
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platform_device_register(&omap_mcbsp5);
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platform_device_register(&omap_pcm);
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}
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#else
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static inline void omap_init_audio(void) {}
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#endif
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#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
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#include <plat/mcspi.h>
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struct omap_device_pm_latency omap_mcspi_latency[] = {
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[0] = {
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.deactivate_func = omap_device_idle_hwmods,
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.activate_func = omap_device_enable_hwmods,
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.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
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},
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};
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static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
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{
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struct platform_device *pdev;
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char *name = "omap2_mcspi";
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struct omap2_mcspi_platform_config *pdata;
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static int spi_num;
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struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
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pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
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if (!pdata) {
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pr_err("Memory allocation for McSPI device failed\n");
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return -ENOMEM;
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}
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pdata->num_cs = mcspi_attrib->num_chipselect;
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switch (oh->class->rev) {
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case OMAP2_MCSPI_REV:
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case OMAP3_MCSPI_REV:
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pdata->regs_offset = 0;
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break;
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case OMAP4_MCSPI_REV:
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pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
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break;
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default:
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pr_err("Invalid McSPI Revision value\n");
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return -EINVAL;
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}
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spi_num++;
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pdev = omap_device_build(name, spi_num, oh, pdata,
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sizeof(*pdata), omap_mcspi_latency,
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ARRAY_SIZE(omap_mcspi_latency), 0);
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WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
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name, oh->name);
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kfree(pdata);
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return 0;
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}
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static void omap_init_mcspi(void)
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{
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omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
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}
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#else
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static inline void omap_init_mcspi(void) {}
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#endif
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static struct resource omap2_pmu_resource = {
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.start = 3,
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.end = 3,
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.flags = IORESOURCE_IRQ,
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};
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static struct resource omap3_pmu_resource = {
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.start = INT_34XX_BENCH_MPU_EMUL,
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.end = INT_34XX_BENCH_MPU_EMUL,
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.flags = IORESOURCE_IRQ,
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};
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static struct platform_device omap_pmu_device = {
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.name = "arm-pmu",
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.id = ARM_PMU_DEVICE_CPU,
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.num_resources = 1,
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};
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static void omap_init_pmu(void)
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{
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if (cpu_is_omap24xx())
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omap_pmu_device.resource = &omap2_pmu_resource;
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else if (cpu_is_omap34xx())
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omap_pmu_device.resource = &omap3_pmu_resource;
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else
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return;
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platform_device_register(&omap_pmu_device);
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}
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#if defined(CONFIG_CRYPTO_DEV_OMAP_SHAM) || defined(CONFIG_CRYPTO_DEV_OMAP_SHAM_MODULE)
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#ifdef CONFIG_ARCH_OMAP2
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static struct resource omap2_sham_resources[] = {
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{
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.start = OMAP24XX_SEC_SHA1MD5_BASE,
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.end = OMAP24XX_SEC_SHA1MD5_BASE + 0x64,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_24XX_SHA1MD5,
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.flags = IORESOURCE_IRQ,
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}
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};
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static int omap2_sham_resources_sz = ARRAY_SIZE(omap2_sham_resources);
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#else
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#define omap2_sham_resources NULL
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#define omap2_sham_resources_sz 0
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#endif
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#ifdef CONFIG_ARCH_OMAP3
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static struct resource omap3_sham_resources[] = {
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{
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.start = OMAP34XX_SEC_SHA1MD5_BASE,
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.end = OMAP34XX_SEC_SHA1MD5_BASE + 0x64,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = INT_34XX_SHA1MD52_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = OMAP34XX_DMA_SHA1MD5_RX,
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.flags = IORESOURCE_DMA,
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}
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};
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static int omap3_sham_resources_sz = ARRAY_SIZE(omap3_sham_resources);
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#else
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#define omap3_sham_resources NULL
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#define omap3_sham_resources_sz 0
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#endif
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static struct platform_device sham_device = {
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.name = "omap-sham",
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.id = -1,
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};
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static void omap_init_sham(void)
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{
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if (cpu_is_omap24xx()) {
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sham_device.resource = omap2_sham_resources;
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sham_device.num_resources = omap2_sham_resources_sz;
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} else if (cpu_is_omap34xx()) {
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sham_device.resource = omap3_sham_resources;
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sham_device.num_resources = omap3_sham_resources_sz;
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} else {
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pr_err("%s: platform not supported\n", __func__);
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return;
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}
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platform_device_register(&sham_device);
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}
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#else
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static inline void omap_init_sham(void) { }
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#endif
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|
|
|
#if defined(CONFIG_CRYPTO_DEV_OMAP_AES) || defined(CONFIG_CRYPTO_DEV_OMAP_AES_MODULE)
|
|
|
|
#ifdef CONFIG_ARCH_OMAP2
|
|
static struct resource omap2_aes_resources[] = {
|
|
{
|
|
.start = OMAP24XX_SEC_AES_BASE,
|
|
.end = OMAP24XX_SEC_AES_BASE + 0x4C,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = OMAP24XX_DMA_AES_TX,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.start = OMAP24XX_DMA_AES_RX,
|
|
.flags = IORESOURCE_DMA,
|
|
}
|
|
};
|
|
static int omap2_aes_resources_sz = ARRAY_SIZE(omap2_aes_resources);
|
|
#else
|
|
#define omap2_aes_resources NULL
|
|
#define omap2_aes_resources_sz 0
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP3
|
|
static struct resource omap3_aes_resources[] = {
|
|
{
|
|
.start = OMAP34XX_SEC_AES_BASE,
|
|
.end = OMAP34XX_SEC_AES_BASE + 0x4C,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = OMAP34XX_DMA_AES2_TX,
|
|
.flags = IORESOURCE_DMA,
|
|
},
|
|
{
|
|
.start = OMAP34XX_DMA_AES2_RX,
|
|
.flags = IORESOURCE_DMA,
|
|
}
|
|
};
|
|
static int omap3_aes_resources_sz = ARRAY_SIZE(omap3_aes_resources);
|
|
#else
|
|
#define omap3_aes_resources NULL
|
|
#define omap3_aes_resources_sz 0
|
|
#endif
|
|
|
|
static struct platform_device aes_device = {
|
|
.name = "omap-aes",
|
|
.id = -1,
|
|
};
|
|
|
|
static void omap_init_aes(void)
|
|
{
|
|
if (cpu_is_omap24xx()) {
|
|
aes_device.resource = omap2_aes_resources;
|
|
aes_device.num_resources = omap2_aes_resources_sz;
|
|
} else if (cpu_is_omap34xx()) {
|
|
aes_device.resource = omap3_aes_resources;
|
|
aes_device.num_resources = omap3_aes_resources_sz;
|
|
} else {
|
|
pr_err("%s: platform not supported\n", __func__);
|
|
return;
|
|
}
|
|
platform_device_register(&aes_device);
|
|
}
|
|
|
|
#else
|
|
static inline void omap_init_aes(void) { }
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
|
|
|
|
static inline void omap242x_mmc_mux(struct omap_mmc_platform_data
|
|
*mmc_controller)
|
|
{
|
|
if ((mmc_controller->slots[0].switch_pin > 0) && \
|
|
(mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
|
|
omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
if ((mmc_controller->slots[0].gpio_wp > 0) && \
|
|
(mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
|
|
omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
|
|
OMAP_PIN_INPUT_PULLUP);
|
|
|
|
omap_mux_init_signal("sdmmc_cmd", 0);
|
|
omap_mux_init_signal("sdmmc_clki", 0);
|
|
omap_mux_init_signal("sdmmc_clko", 0);
|
|
omap_mux_init_signal("sdmmc_dat0", 0);
|
|
omap_mux_init_signal("sdmmc_dat_dir0", 0);
|
|
omap_mux_init_signal("sdmmc_cmd_dir", 0);
|
|
if (mmc_controller->slots[0].caps & MMC_CAP_4_BIT_DATA) {
|
|
omap_mux_init_signal("sdmmc_dat1", 0);
|
|
omap_mux_init_signal("sdmmc_dat2", 0);
|
|
omap_mux_init_signal("sdmmc_dat3", 0);
|
|
omap_mux_init_signal("sdmmc_dat_dir1", 0);
|
|
omap_mux_init_signal("sdmmc_dat_dir2", 0);
|
|
omap_mux_init_signal("sdmmc_dat_dir3", 0);
|
|
}
|
|
|
|
/*
|
|
* Use internal loop-back in MMC/SDIO Module Input Clock
|
|
* selection
|
|
*/
|
|
if (mmc_controller->slots[0].internal_clock) {
|
|
u32 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
|
|
v |= (1 << 24);
|
|
omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
|
|
}
|
|
}
|
|
|
|
void __init omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
|
|
{
|
|
char *name = "mmci-omap";
|
|
|
|
if (!mmc_data[0]) {
|
|
pr_err("%s fails: Incomplete platform data\n", __func__);
|
|
return;
|
|
}
|
|
|
|
omap242x_mmc_mux(mmc_data[0]);
|
|
omap_mmc_add(name, 0, OMAP2_MMC1_BASE, OMAP2420_MMC_SIZE,
|
|
INT_24XX_MMC_IRQ, mmc_data[0]);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE)
|
|
#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_SOC_OMAP3430)
|
|
#define OMAP_HDQ_BASE 0x480B2000
|
|
#endif
|
|
static struct resource omap_hdq_resources[] = {
|
|
{
|
|
.start = OMAP_HDQ_BASE,
|
|
.end = OMAP_HDQ_BASE + 0x1C,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
{
|
|
.start = INT_24XX_HDQ_IRQ,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
static struct platform_device omap_hdq_dev = {
|
|
.name = "omap_hdq",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = NULL,
|
|
},
|
|
.num_resources = ARRAY_SIZE(omap_hdq_resources),
|
|
.resource = omap_hdq_resources,
|
|
};
|
|
static inline void omap_hdq_init(void)
|
|
{
|
|
(void) platform_device_register(&omap_hdq_dev);
|
|
}
|
|
#else
|
|
static inline void omap_hdq_init(void) {}
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
|
|
defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
|
|
#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
|
|
static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
|
|
};
|
|
#else
|
|
static struct resource omap_vout_resource[2] = {
|
|
};
|
|
#endif
|
|
|
|
static struct platform_device omap_vout_device = {
|
|
.name = "omap_vout",
|
|
.num_resources = ARRAY_SIZE(omap_vout_resource),
|
|
.resource = &omap_vout_resource[0],
|
|
.id = -1,
|
|
};
|
|
static void omap_init_vout(void)
|
|
{
|
|
if (platform_device_register(&omap_vout_device) < 0)
|
|
printk(KERN_ERR "Unable to register OMAP-VOUT device\n");
|
|
}
|
|
#else
|
|
static inline void omap_init_vout(void) {}
|
|
#endif
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int __init omap2_init_devices(void)
|
|
{
|
|
/*
|
|
* please keep these calls, and their implementations above,
|
|
* in alphabetical order so they're easier to sort through.
|
|
*/
|
|
omap_init_audio();
|
|
omap_init_camera();
|
|
omap_init_mbox();
|
|
omap_init_mcspi();
|
|
omap_init_pmu();
|
|
omap_hdq_init();
|
|
omap_init_sti();
|
|
omap_init_sham();
|
|
omap_init_aes();
|
|
omap_init_vout();
|
|
|
|
return 0;
|
|
}
|
|
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;
|
|
struct platform_device *pdev;
|
|
struct omap_hwmod *oh;
|
|
char *oh_name = "wd_timer2";
|
|
char *dev_name = "omap_wdt";
|
|
|
|
if (!cpu_class_is_omap2())
|
|
return 0;
|
|
|
|
oh = omap_hwmod_lookup(oh_name);
|
|
if (!oh) {
|
|
pr_err("Could not look up wd_timer%d hwmod\n", id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
pdev = omap_device_build(dev_name, id, oh, NULL, 0,
|
|
omap_wdt_latency,
|
|
ARRAY_SIZE(omap_wdt_latency), 0);
|
|
WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
|
|
dev_name, oh->name);
|
|
return 0;
|
|
}
|
|
subsys_initcall(omap_init_wdt);
|
|
#endif
|