diff options
Diffstat (limited to 'drivers/net/ipa/ipa_uc.c')
| -rw-r--r-- | drivers/net/ipa/ipa_uc.c | 54 |
1 files changed, 34 insertions, 20 deletions
diff --git a/drivers/net/ipa/ipa_uc.c b/drivers/net/ipa/ipa_uc.c index 856e55a080a7..dc7e92f2a4fb 100644 --- a/drivers/net/ipa/ipa_uc.c +++ b/drivers/net/ipa/ipa_uc.c @@ -1,15 +1,18 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2018-2020 Linaro Ltd. + * Copyright (C) 2018-2024 Linaro Ltd. */ -#include <linux/types.h> -#include <linux/io.h> #include <linux/delay.h> +#include <linux/io.h> #include <linux/pm_runtime.h> +#include <linux/types.h> #include "ipa.h" +#include "ipa_interrupt.h" +#include "ipa_power.h" +#include "ipa_reg.h" #include "ipa_uc.h" /** @@ -123,10 +126,10 @@ static struct ipa_uc_mem_area *ipa_uc_shared(struct ipa *ipa) } /* Microcontroller event IPA interrupt handler */ -static void ipa_uc_event_handler(struct ipa *ipa, enum ipa_irq_id irq_id) +static void ipa_uc_event_handler(struct ipa *ipa) { struct ipa_uc_mem_area *shared = ipa_uc_shared(ipa); - struct device *dev = &ipa->pdev->dev; + struct device *dev = ipa->dev; if (shared->event == IPA_UC_EVENT_ERROR) dev_err(dev, "microcontroller error event\n"); @@ -137,10 +140,10 @@ static void ipa_uc_event_handler(struct ipa *ipa, enum ipa_irq_id irq_id) } /* Microcontroller response IPA interrupt handler */ -static void ipa_uc_response_hdlr(struct ipa *ipa, enum ipa_irq_id irq_id) +static void ipa_uc_response_hdlr(struct ipa *ipa) { struct ipa_uc_mem_area *shared = ipa_uc_shared(ipa); - struct device *dev = &ipa->pdev->dev; + struct device *dev = ipa->dev; /* An INIT_COMPLETED response message is sent to the AP by the * microcontroller when it is operational. Other than this, the AP @@ -154,7 +157,7 @@ static void ipa_uc_response_hdlr(struct ipa *ipa, enum ipa_irq_id irq_id) case IPA_UC_RESPONSE_INIT_COMPLETED: if (ipa->uc_powered) { ipa->uc_loaded = true; - pm_runtime_mark_last_busy(dev); + ipa_power_retention(ipa, true); (void)pm_runtime_put_autosuspend(dev); ipa->uc_powered = false; } else { @@ -168,34 +171,45 @@ static void ipa_uc_response_hdlr(struct ipa *ipa, enum ipa_irq_id irq_id) } } +void ipa_uc_interrupt_handler(struct ipa *ipa, enum ipa_irq_id irq_id) +{ + /* Silently ignore anything unrecognized */ + if (irq_id == IPA_IRQ_UC_0) + ipa_uc_event_handler(ipa); + else if (irq_id == IPA_IRQ_UC_1) + ipa_uc_response_hdlr(ipa); +} + /* Configure the IPA microcontroller subsystem */ void ipa_uc_config(struct ipa *ipa) { ipa->uc_powered = false; ipa->uc_loaded = false; - ipa_interrupt_add(ipa->interrupt, IPA_IRQ_UC_0, ipa_uc_event_handler); - ipa_interrupt_add(ipa->interrupt, IPA_IRQ_UC_1, ipa_uc_response_hdlr); + ipa_interrupt_enable(ipa, IPA_IRQ_UC_0); + ipa_interrupt_enable(ipa, IPA_IRQ_UC_1); } /* Inverse of ipa_uc_config() */ void ipa_uc_deconfig(struct ipa *ipa) { - struct device *dev = &ipa->pdev->dev; + struct device *dev = ipa->dev; + + ipa_interrupt_disable(ipa, IPA_IRQ_UC_1); + ipa_interrupt_disable(ipa, IPA_IRQ_UC_0); + if (ipa->uc_loaded) + ipa_power_retention(ipa, false); - ipa_interrupt_remove(ipa->interrupt, IPA_IRQ_UC_1); - ipa_interrupt_remove(ipa->interrupt, IPA_IRQ_UC_0); if (!ipa->uc_powered) return; - pm_runtime_mark_last_busy(dev); (void)pm_runtime_put_autosuspend(dev); } /* Take a proxy power reference for the microcontroller */ void ipa_uc_power(struct ipa *ipa) { + struct device *dev = ipa->dev; static bool already; - struct device *dev; int ret; if (already) @@ -203,7 +217,6 @@ void ipa_uc_power(struct ipa *ipa) already = true; /* Only do this on first boot */ /* This power reference dropped in ipa_uc_response_hdlr() above */ - dev = &ipa->pdev->dev; ret = pm_runtime_get_sync(dev); if (ret < 0) { pm_runtime_put_noidle(dev); @@ -217,7 +230,7 @@ void ipa_uc_power(struct ipa *ipa) static void send_uc_command(struct ipa *ipa, u32 command, u32 command_param) { struct ipa_uc_mem_area *shared = ipa_uc_shared(ipa); - u32 offset; + const struct reg *reg; u32 val; /* Fill in the command data */ @@ -228,9 +241,10 @@ static void send_uc_command(struct ipa *ipa, u32 command, u32 command_param) shared->response_param = 0; /* Use an interrupt to tell the microcontroller the command is ready */ - val = u32_encode_bits(1, UC_INTR_FMASK); - offset = ipa_reg_irq_uc_offset(ipa->version); - iowrite32(val, ipa->reg_virt + offset); + reg = ipa_reg(ipa, IPA_IRQ_UC); + val = reg_bit(reg, UC_INTR); + + iowrite32(val, ipa->reg_virt + reg_offset(reg)); } /* Tell the microcontroller the AP is shutting down */ |