1841c0f616
git-subtree-dir: qcom/opensource/display-drivers git-subtree-mainline:2d61911ef6git-subtree-split:5ff96e6831Change-Id: repo: https://git.codelinaro.org/clo/la/platform/vendor/opensource/display-drivers tag: DISPLAY.LA.4.0.r2-07600-lanai.0
136 wiersze
2.7 KiB
C
136 wiersze
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
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* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
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*/
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#define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__
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#include <linux/irqdomain.h>
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#include <linux/irq.h>
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#include <linux/kthread.h>
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#include "sde_irq.h"
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#include "sde_core_irq.h"
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uint32_t g_sde_irq_status;
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void sde_irq_update(struct msm_kms *msm_kms, bool enable)
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{
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struct sde_kms *sde_kms = to_sde_kms(msm_kms);
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if (!msm_kms || !sde_kms) {
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SDE_ERROR("invalid kms arguments\n");
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return;
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}
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sde_kms->irq_enabled = enable;
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if (enable)
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enable_irq(sde_kms->irq_num);
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else
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disable_irq(sde_kms->irq_num);
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}
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irqreturn_t sde_irq(struct msm_kms *kms)
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{
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struct sde_kms *sde_kms = to_sde_kms(kms);
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u32 interrupts;
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sde_kms->hw_intr->ops.get_interrupt_sources(sde_kms->hw_intr,
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&interrupts);
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/* store irq status in case of irq-storm debugging */
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g_sde_irq_status = interrupts;
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/*
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* Taking care of MDP interrupt
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*/
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if (interrupts & IRQ_SOURCE_MDP) {
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interrupts &= ~IRQ_SOURCE_MDP;
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sde_core_irq(sde_kms);
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}
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/*
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* Routing all other interrupts to external drivers
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*/
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while (interrupts) {
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irq_hw_number_t hwirq = fls(interrupts) - 1;
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unsigned int mapping;
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int rc;
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mapping = irq_find_mapping(sde_kms->irq_controller.domain,
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hwirq);
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if (mapping == 0) {
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SDE_EVT32(hwirq, SDE_EVTLOG_ERROR);
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goto error;
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}
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rc = generic_handle_irq(mapping);
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if (rc < 0) {
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SDE_EVT32(hwirq, mapping, rc, SDE_EVTLOG_ERROR);
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goto error;
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}
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interrupts &= ~(1 << hwirq);
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}
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return IRQ_HANDLED;
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error:
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/* bad situation, inform irq system, it may disable overall MDSS irq */
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return IRQ_NONE;
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}
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void sde_irq_preinstall(struct msm_kms *kms)
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{
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struct sde_kms *sde_kms = to_sde_kms(kms);
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if (!sde_kms->dev || !sde_kms->dev->dev) {
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pr_err("invalid device handles\n");
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return;
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}
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sde_core_irq_preinstall(sde_kms);
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sde_kms->irq_num = platform_get_irq(
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to_platform_device(sde_kms->dev->dev),
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0);
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if (sde_kms->irq_num < 0) {
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SDE_ERROR("invalid irq number %d\n", sde_kms->irq_num);
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return;
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}
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/* disable irq until power event enables it */
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if (!sde_kms->irq_enabled)
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irq_set_status_flags(sde_kms->irq_num, IRQ_NOAUTOEN);
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}
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int sde_irq_postinstall(struct msm_kms *kms)
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{
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struct sde_kms *sde_kms = to_sde_kms(kms);
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int rc;
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if (!kms) {
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SDE_ERROR("invalid parameters\n");
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return -EINVAL;
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}
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rc = sde_core_irq_postinstall(sde_kms);
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return rc;
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}
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void sde_irq_uninstall(struct msm_kms *kms)
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{
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struct sde_kms *sde_kms = to_sde_kms(kms);
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if (!kms) {
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SDE_ERROR("invalid parameters\n");
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return;
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}
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sde_core_irq_uninstall(sde_kms);
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sde_core_irq_domain_fini(sde_kms);
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}
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