diff options
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/board-generic.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/common.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/display.c | 119 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/display.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/drm.c | 53 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/hsmmc.c | 239 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/hsmmc.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/io.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap_twl.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm3xxx.c | 7 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm44xx.c | 55 |
13 files changed, 125 insertions, 371 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 779fb1f680b3..b3b3b3a19183 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -8,7 +8,7 @@ ccflags-y := -I$(srctree)/$(src)/include \ # Common support obj-y := id.o io.o control.o devices.o fb.o timer.o pm.o \ common.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \ - omap_device.o omap-headsmp.o sram.o drm.o + omap_device.o omap-headsmp.o sram.o hwmod-common = omap_hwmod.o omap_hwmod_reset.o \ omap_hwmod_common_data.o diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index dc9e34e670a2..583fc39d84cd 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -28,11 +28,12 @@ static const struct of_device_id omap_dt_match_table[] __initconst = { { } }; -static void __init omap_generic_init(void) +static void __init __maybe_unused omap_generic_init(void) { pdata_quirks_init(omap_dt_match_table); omapdss_init_of(); + omap_soc_device_init(); } #ifdef CONFIG_SOC_OMAP2420 diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index 8cc6338fcb12..b5ad7fcb80ed 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -29,7 +29,7 @@ #include <linux/irq.h> #include <linux/delay.h> #include <linux/i2c.h> -#include <linux/i2c/twl.h> +#include <linux/mfd/twl.h> #include <linux/i2c-omap.h> #include <linux/reboot.h> #include <linux/irqchip/irq-omap-intc.h> diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 8fa01c0ecdb2..b3f6eb5d04a2 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -66,6 +66,7 @@ */ #define FRAMEDONE_IRQ_TIMEOUT 100 +#if defined(CONFIG_FB_OMAP2) static struct platform_device omap_display_device = { .name = "omapdss", .id = -1, @@ -163,6 +164,65 @@ static enum omapdss_version __init omap_display_get_version(void) return OMAPDSS_VER_UNKNOWN; } +static int __init omapdss_init_fbdev(void) +{ + static struct omap_dss_board_info board_data = { + .dsi_enable_pads = omap_dsi_enable_pads, + .dsi_disable_pads = omap_dsi_disable_pads, + .set_min_bus_tput = omap_dss_set_min_bus_tput, + }; + struct device_node *node; + int r; + + board_data.version = omap_display_get_version(); + if (board_data.version == OMAPDSS_VER_UNKNOWN) { + pr_err("DSS not supported on this SoC\n"); + return -ENODEV; + } + + omap_display_device.dev.platform_data = &board_data; + + r = platform_device_register(&omap_display_device); + if (r < 0) { + pr_err("Unable to register omapdss device\n"); + return r; + } + + /* create vrfb device */ + r = omap_init_vrfb(); + if (r < 0) { + pr_err("Unable to register omapvrfb device\n"); + return r; + } + + /* create FB device */ + r = omap_init_fb(); + if (r < 0) { + pr_err("Unable to register omapfb device\n"); + return r; + } + + /* create V4L2 display device */ + r = omap_init_vout(); + if (r < 0) { + pr_err("Unable to register omap_vout device\n"); + return r; + } + + /* add DSI info for omap4 */ + node = of_find_node_by_name(NULL, "omap4_padconf_global"); + if (node) + omap4_dsi_mux_syscon = syscon_node_to_regmap(node); + + return 0; +} +#else +static inline int omapdss_init_fbdev(void) +{ + return 0; +} +#endif /* CONFIG_FB_OMAP2 */ + static void dispc_disable_outputs(void) { u32 v, irq_mask = 0; @@ -335,16 +395,9 @@ static struct device_node * __init omapdss_find_dss_of_node(void) int __init omapdss_init_of(void) { int r; - enum omapdss_version ver; struct device_node *node; struct platform_device *pdev; - static struct omap_dss_board_info board_data = { - .dsi_enable_pads = omap_dsi_enable_pads, - .dsi_disable_pads = omap_dsi_disable_pads, - .set_min_bus_tput = omap_dss_set_min_bus_tput, - }; - /* only create dss helper devices if dss is enabled in the .dts */ node = omapdss_find_dss_of_node(); @@ -354,13 +407,6 @@ int __init omapdss_init_of(void) if (!of_device_is_available(node)) return 0; - ver = omap_display_get_version(); - - if (ver == OMAPDSS_VER_UNKNOWN) { - pr_err("DSS not supported on this SoC\n"); - return -ENODEV; - } - pdev = of_find_device_by_node(node); if (!pdev) { @@ -374,48 +420,5 @@ int __init omapdss_init_of(void) return r; } - board_data.version = ver; - - omap_display_device.dev.platform_data = &board_data; - - r = platform_device_register(&omap_display_device); - if (r < 0) { - pr_err("Unable to register omapdss device\n"); - return r; - } - - /* create DRM device */ - r = omap_init_drm(); - if (r < 0) { - pr_err("Unable to register omapdrm device\n"); - return r; - } - - /* create vrfb device */ - r = omap_init_vrfb(); - if (r < 0) { - pr_err("Unable to register omapvrfb device\n"); - return r; - } - - /* create FB device */ - r = omap_init_fb(); - if (r < 0) { - pr_err("Unable to register omapfb device\n"); - return r; - } - - /* create V4L2 display device */ - r = omap_init_vout(); - if (r < 0) { - pr_err("Unable to register omap_vout device\n"); - return r; - } - - /* add DSI info for omap4 */ - node = of_find_node_by_name(NULL, "omap4_padconf_global"); - if (node) - omap4_dsi_mux_syscon = syscon_node_to_regmap(node); - - return 0; + return omapdss_init_fbdev(); } diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h index 9a39646d4316..42ec2e99a2f4 100644 --- a/arch/arm/mach-omap2/display.h +++ b/arch/arm/mach-omap2/display.h @@ -26,7 +26,6 @@ struct omap_dss_dispc_dev_attr { bool has_framedonetv_irq; }; -int omap_init_drm(void); int omap_init_vrfb(void); int omap_init_fb(void); int omap_init_vout(void); diff --git a/arch/arm/mach-omap2/drm.c b/arch/arm/mach-omap2/drm.c deleted file mode 100644 index 44fef961bb70..000000000000 --- a/arch/arm/mach-omap2/drm.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * DRM/KMS device registration for TI OMAP platforms - * - * Copyright (C) 2012 Texas Instruments - * Author: Rob Clark <rob.clark@linaro.org> - * - * 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/>. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> -#include <linux/platform_data/omap_drm.h> - -#include "soc.h" -#include "display.h" - -#if IS_ENABLED(CONFIG_DRM_OMAP) - -static struct omap_drm_platform_data platform_data; - -static struct platform_device omap_drm_device = { - .dev = { - .coherent_dma_mask = DMA_BIT_MASK(32), - .platform_data = &platform_data, - }, - .name = "omapdrm", - .id = 0, -}; - -int __init omap_init_drm(void) -{ - platform_data.omaprev = GET_OMAP_TYPE; - - return platform_device_register(&omap_drm_device); - -} -#else -int __init omap_init_drm(void) { return 0; } -#endif diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index be517b048762..5b614388d72f 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -32,120 +32,6 @@ static u16 control_devconf1_offset; #define HSMMC_NAME_LEN 9 -static void omap_hsmmc1_before_set_reg(struct device *dev, - int power_on, int vdd) -{ - u32 reg, prog_io; - struct omap_hsmmc_platform_data *mmc = dev->platform_data; - - if (mmc->remux) - mmc->remux(dev, power_on); - - /* - * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the - * card with Vcc regulator (from twl4030 or whatever). OMAP has both - * 1.8V and 3.0V modes, controlled by the PBIAS register. - * - * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which - * is most naturally TWL VSIM; those pins also use PBIAS. - * - * FIXME handle VMMC1A as needed ... - */ - if (power_on) { - if (cpu_is_omap2430()) { - reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1); - if ((1 << vdd) >= MMC_VDD_30_31) - reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE; - else - reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE; - omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1); - } - - if (mmc->internal_clock) { - reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - reg |= OMAP2_MMCSDIO1ADPCLKISEL; - omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0); - } - - reg = omap_ctrl_readl(control_pbias_offset); - if (cpu_is_omap3630()) { - /* Set MMC I/O to 52MHz */ - prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1); - prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL; - omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1); - } else { - reg |= OMAP2_PBIASSPEEDCTRL0; - } - reg &= ~OMAP2_PBIASLITEPWRDNZ0; - omap_ctrl_writel(reg, control_pbias_offset); - } else { - reg = omap_ctrl_readl(control_pbias_offset); - reg &= ~OMAP2_PBIASLITEPWRDNZ0; - omap_ctrl_writel(reg, control_pbias_offset); - } -} - -static void omap_hsmmc1_after_set_reg(struct device *dev, int power_on, int vdd) -{ - u32 reg; - - /* 100ms delay required for PBIAS configuration */ - msleep(100); - - if (power_on) { - reg = omap_ctrl_readl(control_pbias_offset); - reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0); - if ((1 << vdd) <= MMC_VDD_165_195) - reg &= ~OMAP2_PBIASLITEVMODE0; - else - reg |= OMAP2_PBIASLITEVMODE0; - omap_ctrl_writel(reg, control_pbias_offset); - } else { - reg = omap_ctrl_readl(control_pbias_offset); - reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 | - OMAP2_PBIASLITEVMODE0); - omap_ctrl_writel(reg, control_pbias_offset); - } -} - -static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc) -{ - u32 reg; - - reg = omap_ctrl_readl(control_devconf1_offset); - if (mmc->internal_clock) - reg |= OMAP2_MMCSDIO2ADPCLKISEL; - else - reg &= ~OMAP2_MMCSDIO2ADPCLKISEL; - omap_ctrl_writel(reg, control_devconf1_offset); -} - -static void hsmmc2_before_set_reg(struct device *dev, int power_on, int vdd) -{ - struct omap_hsmmc_platform_data *mmc = dev->platform_data; - - if (mmc->remux) - mmc->remux(dev, power_on); - - if (power_on) - hsmmc2_select_input_clk_src(mmc); -} - -static int am35x_hsmmc2_set_power(struct device *dev, int power_on, int vdd) -{ - struct omap_hsmmc_platform_data *mmc = dev->platform_data; - - if (power_on) - hsmmc2_select_input_clk_src(mmc); - - return 0; -} - -static int nop_mmc_set_power(struct device *dev, int power_on, int vdd) -{ - return 0; -} - static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, struct omap_hsmmc_platform_data *mmc) { @@ -157,101 +43,11 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, return -ENOMEM; } - if (c->name) - strncpy(hc_name, c->name, HSMMC_NAME_LEN); - else - snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", - c->mmc, 1); + snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", c->mmc, 1); mmc->name = hc_name; mmc->caps = c->caps; - mmc->internal_clock = !c->ext_clock; mmc->reg_offset = 0; - if (c->cover_only) { - /* detect if mobile phone cover removed */ - mmc->gpio_cd = -EINVAL; - mmc->gpio_cod = c->gpio_cd; - } else { - /* card detect pin on the mmc socket itself */ - mmc->gpio_cd = c->gpio_cd; - mmc->gpio_cod = -EINVAL; - } - mmc->gpio_wp = c->gpio_wp; - - mmc->remux = c->remux; - mmc->init_card = c->init_card; - - if (c->nonremovable) - mmc->nonremovable = 1; - - /* - * NOTE: MMC slots should have a Vcc regulator set up. - * This may be from a TWL4030-family chip, another - * controllable regulator, or a fixed supply. - * - * temporary HACK: ocr_mask instead of fixed supply - */ - if (soc_is_am35xx()) - mmc->ocr_mask = MMC_VDD_165_195 | - MMC_VDD_26_27 | - MMC_VDD_27_28 | - MMC_VDD_29_30 | - MMC_VDD_30_31 | - MMC_VDD_31_32; - else - mmc->ocr_mask = c->ocr_mask; - - if (!soc_is_am35xx()) - mmc->features |= HSMMC_HAS_PBIAS; - - switch (c->mmc) { - case 1: - if (mmc->features & HSMMC_HAS_PBIAS) { - /* on-chip level shifting via PBIAS0/PBIAS1 */ - mmc->before_set_reg = - omap_hsmmc1_before_set_reg; - mmc->after_set_reg = - omap_hsmmc1_after_set_reg; - } - - if (soc_is_am35xx()) - mmc->set_power = nop_mmc_set_power; - - /* OMAP3630 HSMMC1 supports only 4-bit */ - if (cpu_is_omap3630() && - (c->caps & MMC_CAP_8_BIT_DATA)) { - c->caps &= ~MMC_CAP_8_BIT_DATA; - c->caps |= MMC_CAP_4_BIT_DATA; - mmc->caps = c->caps; - } - break; - case 2: - if (soc_is_am35xx()) - mmc->set_power = am35x_hsmmc2_set_power; - - if (c->ext_clock) - c->transceiver = 1; - if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) { - c->caps &= ~MMC_CAP_8_BIT_DATA; - c->caps |= MMC_CAP_4_BIT_DATA; - } - if (mmc->features & HSMMC_HAS_PBIAS) { - /* off-chip level shifting, or none */ - mmc->before_set_reg = hsmmc2_before_set_reg; - mmc->after_set_reg = NULL; - } - break; - case 3: - case 4: - case 5: - mmc->before_set_reg = NULL; - mmc->after_set_reg = NULL; - break; - default: - pr_err("MMC%d configuration not supported!\n", c->mmc); - kfree(hc_name); - return -ENODEV; - } return 0; } @@ -260,7 +56,6 @@ static int omap_hsmmc_done; void omap_hsmmc_late_init(struct omap2_hsmmc_info *c) { struct platform_device *pdev; - struct omap_hsmmc_platform_data *mmc_pdata; int res; if (omap_hsmmc_done != 1) @@ -269,32 +64,12 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c) omap_hsmmc_done++; for (; c->mmc; c++) { - if (!c->deferred) - continue; - pdev = c->pdev; if (!pdev) continue; - - mmc_pdata = pdev->dev.platform_data; - if (!mmc_pdata) - continue; - - if (c->cover_only) { - /* detect if mobile phone cover removed */ - mmc_pdata->gpio_cd = -EINVAL; - mmc_pdata->gpio_cod = c->gpio_cd; - } else { - /* card detect pin on the mmc socket itself */ - mmc_pdata->gpio_cd = c->gpio_cd; - mmc_pdata->gpio_cod = -EINVAL; - } - mmc_pdata->gpio_wp = c->gpio_wp; - res = omap_device_register(pdev); if (res) - pr_err("Could not late init MMC %s\n", - c->name); + pr_err("Could not late init MMC\n"); } } @@ -336,13 +111,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo, if (oh->dev_attr != NULL) { mmc_dev_attr = oh->dev_attr; mmc_data->controller_flags = mmc_dev_attr->flags; - /* - * erratum 2.1.1.128 doesn't apply if board has - * a transceiver is attached - */ - if (hsmmcinfo->transceiver) - mmc_data->controller_flags &= - ~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ; } pdev = platform_device_alloc(name, ctrl_nr - 1); @@ -367,9 +135,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo, hsmmcinfo->pdev = pdev; - if (hsmmcinfo->deferred) - goto free_mmc; - res = omap_device_register(pdev); if (res) { pr_err("Could not register od for %s\n", name); diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index 69b619ddc765..af9af5094ec3 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -12,18 +12,9 @@ struct omap2_hsmmc_info { u8 mmc; /* controller 1/2/3 */ u32 caps; /* 4/8 wires and any additional host * capabilities OR'd (ref. linux/mmc/host.h) */ - bool transceiver; /* MMC-2 option */ - bool ext_clock; /* use external pin for input clock */ - bool cover_only; /* No card detect - just cover switch */ - bool nonremovable; /* Nonremovable e.g. eMMC */ - bool deferred; /* mmc needs a deferred probe */ int gpio_cd; /* or -EINVAL */ int gpio_wp; /* or -EINVAL */ - char *name; /* or NULL for default */ struct platform_device *pdev; /* mmc controller instance */ - int ocr_mask; /* temporary HACK */ - /* Remux (pad configuration) when powering on/off */ - void (*remux)(struct device *dev, int power_on); /* init some special card */ void (*init_card)(struct mmc_card *card); }; diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 1d739d1a0a65..cb5d7314cf99 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -410,7 +410,7 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); } -static void __init omap_hwmod_init_postsetup(void) +static void __init __maybe_unused omap_hwmod_init_postsetup(void) { u8 postsetup_state; @@ -428,7 +428,6 @@ static void __init omap_hwmod_init_postsetup(void) static void __init __maybe_unused omap_common_late_init(void) { omap2_common_pm_late_init(); - omap_soc_device_init(); } #ifdef CONFIG_SOC_OMAP2420 diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c index 1346b3ab34a5..295124b248ae 100644 --- a/arch/arm/mach-omap2/omap_twl.c +++ b/arch/arm/mach-omap2/omap_twl.c @@ -16,7 +16,7 @@ #include <linux/err.h> #include <linux/io.h> #include <linux/kernel.h> -#include <linux/i2c/twl.h> +#include <linux/mfd/twl.h> #include "soc.h" #include "voltage.h" diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index d44e0e2f1106..841ba19d64a6 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -486,7 +486,6 @@ int __init omap3_pm_init(void) ret = request_irq(omap_prcm_event_to_irq("io"), _prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io", omap3_pm_init); - enable_irq(omap_prcm_event_to_irq("io")); if (ret) { pr_err("pm: Failed to request pm_io irq\n"); diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index 382e236fbfd9..64f6451499a7 100644 --- a/arch/arm/mach-omap2/prm3xxx.c +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -692,7 +692,6 @@ static int omap3xxx_prm_late_init(void) { struct device_node *np; int irq_num; - int ret; if (!(prm_features & PRM_HAS_IO_WAKEUP)) return 0; @@ -712,12 +711,8 @@ static int omap3xxx_prm_late_init(void) } omap3xxx_prm_enable_io_wakeup(); - ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); - if (!ret) - irq_set_status_flags(omap_prcm_event_to_irq("io"), - IRQ_NOAUTOEN); - return ret; + return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); } static void __exit omap3xxx_prm_exit(void) diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index 87e86a4a9ead..3ab5df1ce900 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -337,6 +337,27 @@ static void omap44xx_prm_reconfigure_io_chain(void) } /** + * omap44xx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches + * + * Activates the I/O wakeup event latches and allows events logged by + * those latches to signal a wakeup event to the PRCM. For I/O wakeups + * to occur, WAKEUPENABLE bits must be set in the pad mux registers, and + * omap44xx_prm_reconfigure_io_chain() must be called. No return value. + */ +static void __init omap44xx_prm_enable_io_wakeup(void) +{ + s32 inst = omap4_prmst_get_prm_dev_inst(); + + if (inst == PRM_INSTANCE_UNKNOWN) + return; + + omap4_prm_rmw_inst_reg_bits(OMAP4430_GLOBAL_WUEN_MASK, + OMAP4430_GLOBAL_WUEN_MASK, + inst, + omap4_prcm_irq_setup.pm_ctrl); +} + +/** * omap44xx_prm_read_reset_sources - return the last SoC reset source * * Return a u32 representing the last reset sources of the SoC. The @@ -668,6 +689,8 @@ struct pwrdm_ops omap4_pwrdm_operations = { .pwrdm_has_voltdm = omap4_check_vcvp, }; +static int omap44xx_prm_late_init(void); + /* * XXX document */ @@ -675,6 +698,7 @@ static struct prm_ll_data omap44xx_prm_ll_data = { .read_reset_sources = &omap44xx_prm_read_reset_sources, .was_any_context_lost_old = &omap44xx_prm_was_any_context_lost_old, .clear_context_loss_flags_old = &omap44xx_prm_clear_context_loss_flags_old, + .late_init = &omap44xx_prm_late_init, .assert_hardreset = omap4_prminst_assert_hardreset, .deassert_hardreset = omap4_prminst_deassert_hardreset, .is_hardreset_asserted = omap4_prminst_is_hardreset_asserted, @@ -711,6 +735,37 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data) return prm_register(&omap44xx_prm_ll_data); } +static int omap44xx_prm_late_init(void) +{ + int irq_num; + + if (!(prm_features & PRM_HAS_IO_WAKEUP)) + return 0; + + irq_num = of_irq_get(prm_init_data->np, 0); + /* + * Already have OMAP4 IRQ num. For all other platforms, we need + * IRQ numbers from DT + */ + if (irq_num < 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) { + if (irq_num == -EPROBE_DEFER) + return irq_num; + + /* Have nothing to do */ + return 0; + } + + /* Once OMAP4 DT is filled as well */ + if (irq_num >= 0) { + omap4_prcm_irq_setup.irq = irq_num; + omap4_prcm_irq_setup.xlate_irq = NULL; + } + + omap44xx_prm_enable_io_wakeup(); + + return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup); +} + static void __exit omap44xx_prm_exit(void) { prm_unregister(&omap44xx_prm_ll_data); |
