summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c')
-rw-r--r--drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
deleted file mode 100644
index cb307a2abf06..000000000000
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * SPDX-License-Identifier: GPL-2.0
- * Copyright (c) 2018, The Linux Foundation
- */
-
-#include "dpu_kms.h"
-
-#define to_dpu_mdss(x) container_of(x, struct dpu_mdss, base)
-
-#define HW_INTR_STATUS 0x0010
-
-struct dpu_irq_controller {
- unsigned long enabled_mask;
- struct irq_domain *domain;
-};
-
-struct dpu_mdss {
- struct msm_mdss base;
- void __iomem *mmio;
- unsigned long mmio_len;
- u32 hwversion;
- struct dss_module_power mp;
- struct dpu_irq_controller irq_controller;
-};
-
-static irqreturn_t dpu_mdss_irq(int irq, void *arg)
-{
- struct dpu_mdss *dpu_mdss = arg;
- u32 interrupts;
-
- interrupts = readl_relaxed(dpu_mdss->mmio + HW_INTR_STATUS);
-
- while (interrupts) {
- irq_hw_number_t hwirq = fls(interrupts) - 1;
- unsigned int mapping;
- int rc;
-
- mapping = irq_find_mapping(dpu_mdss->irq_controller.domain,
- hwirq);
- if (mapping == 0) {
- DRM_ERROR("couldn't find irq mapping for %lu\n", hwirq);
- return IRQ_NONE;
- }
-
- rc = generic_handle_irq(mapping);
- if (rc < 0) {
- DRM_ERROR("handle irq fail: irq=%lu mapping=%u rc=%d\n",
- hwirq, mapping, rc);
- return IRQ_NONE;
- }
-
- interrupts &= ~(1 << hwirq);
- }
-
- return IRQ_HANDLED;
-}
-
-static void dpu_mdss_irq_mask(struct irq_data *irqd)
-{
- struct dpu_mdss *dpu_mdss = irq_data_get_irq_chip_data(irqd);
-
- /* memory barrier */
- smp_mb__before_atomic();
- clear_bit(irqd->hwirq, &dpu_mdss->irq_controller.enabled_mask);
- /* memory barrier */
- smp_mb__after_atomic();
-}
-
-static void dpu_mdss_irq_unmask(struct irq_data *irqd)
-{
- struct dpu_mdss *dpu_mdss = irq_data_get_irq_chip_data(irqd);
-
- /* memory barrier */
- smp_mb__before_atomic();
- set_bit(irqd->hwirq, &dpu_mdss->irq_controller.enabled_mask);
- /* memory barrier */
- smp_mb__after_atomic();
-}
-
-static struct irq_chip dpu_mdss_irq_chip = {
- .name = "dpu_mdss",
- .irq_mask = dpu_mdss_irq_mask,
- .irq_unmask = dpu_mdss_irq_unmask,
-};
-
-static int dpu_mdss_irqdomain_map(struct irq_domain *domain,
- unsigned int irq, irq_hw_number_t hwirq)
-{
- struct dpu_mdss *dpu_mdss = domain->host_data;
- int ret;
-
- irq_set_chip_and_handler(irq, &dpu_mdss_irq_chip, handle_level_irq);
- ret = irq_set_chip_data(irq, dpu_mdss);
-
- return ret;
-}
-
-static const struct irq_domain_ops dpu_mdss_irqdomain_ops = {
- .map = dpu_mdss_irqdomain_map,
- .xlate = irq_domain_xlate_onecell,
-};
-
-static int _dpu_mdss_irq_domain_add(struct dpu_mdss *dpu_mdss)
-{
- struct device *dev;
- struct irq_domain *domain;
-
- dev = dpu_mdss->base.dev->dev;
-
- domain = irq_domain_add_linear(dev->of_node, 32,
- &dpu_mdss_irqdomain_ops, dpu_mdss);
- if (!domain) {
- DPU_ERROR("failed to add irq_domain\n");
- return -EINVAL;
- }
-
- dpu_mdss->irq_controller.enabled_mask = 0;
- dpu_mdss->irq_controller.domain = domain;
-
- return 0;
-}
-
-static void _dpu_mdss_irq_domain_fini(struct dpu_mdss *dpu_mdss)
-{
- if (dpu_mdss->irq_controller.domain) {
- irq_domain_remove(dpu_mdss->irq_controller.domain);
- dpu_mdss->irq_controller.domain = NULL;
- }
-}
-static int dpu_mdss_enable(struct msm_mdss *mdss)
-{
- struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss);
- struct dss_module_power *mp = &dpu_mdss->mp;
- int ret;
-
- ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, true);
- if (ret)
- DPU_ERROR("clock enable failed, ret:%d\n", ret);
-
- return ret;
-}
-
-static int dpu_mdss_disable(struct msm_mdss *mdss)
-{
- struct dpu_mdss *dpu_mdss = to_dpu_mdss(mdss);
- struct dss_module_power *mp = &dpu_mdss->mp;
- int ret;
-
- ret = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
- if (ret)
- DPU_ERROR("clock disable failed, ret:%d\n", ret);
-
- return ret;
-}
-
-static void dpu_mdss_destroy(struct drm_device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev->dev);
- struct msm_drm_private *priv = dev->dev_private;
- struct dpu_mdss *dpu_mdss = to_dpu_mdss(priv->mdss);
- struct dss_module_power *mp = &dpu_mdss->mp;
-
- pm_runtime_suspend(dev->dev);
- pm_runtime_disable(dev->dev);
- _dpu_mdss_irq_domain_fini(dpu_mdss);
- free_irq(platform_get_irq(pdev, 0), dpu_mdss);
- msm_dss_put_clk(mp->clk_config, mp->num_clk);
- devm_kfree(&pdev->dev, mp->clk_config);
-
- if (dpu_mdss->mmio)
- devm_iounmap(&pdev->dev, dpu_mdss->mmio);
- dpu_mdss->mmio = NULL;
- priv->mdss = NULL;
-}
-
-static const struct msm_mdss_funcs mdss_funcs = {
- .enable = dpu_mdss_enable,
- .disable = dpu_mdss_disable,
- .destroy = dpu_mdss_destroy,
-};
-
-int dpu_mdss_init(struct drm_device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev->dev);
- struct msm_drm_private *priv = dev->dev_private;
- struct resource *res;
- struct dpu_mdss *dpu_mdss;
- struct dss_module_power *mp;
- int ret = 0;
-
- dpu_mdss = devm_kzalloc(dev->dev, sizeof(*dpu_mdss), GFP_KERNEL);
- if (!dpu_mdss)
- return -ENOMEM;
-
- dpu_mdss->mmio = msm_ioremap(pdev, "mdss", "mdss");
- if (IS_ERR(dpu_mdss->mmio))
- return PTR_ERR(dpu_mdss->mmio);
-
- DRM_DEBUG("mapped mdss address space @%pK\n", dpu_mdss->mmio);
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mdss");
- if (!res) {
- DRM_ERROR("failed to get memory resource for mdss\n");
- return -ENOMEM;
- }
- dpu_mdss->mmio_len = resource_size(res);
-
- mp = &dpu_mdss->mp;
- ret = msm_dss_parse_clock(pdev, mp);
- if (ret) {
- DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
- goto clk_parse_err;
- }
-
- dpu_mdss->base.dev = dev;
- dpu_mdss->base.funcs = &mdss_funcs;
-
- ret = _dpu_mdss_irq_domain_add(dpu_mdss);
- if (ret)
- goto irq_domain_error;
-
- ret = request_irq(platform_get_irq(pdev, 0),
- dpu_mdss_irq, 0, "dpu_mdss_isr", dpu_mdss);
- if (ret) {
- DPU_ERROR("failed to init irq: %d\n", ret);
- goto irq_error;
- }
-
- pm_runtime_enable(dev->dev);
-
- pm_runtime_get_sync(dev->dev);
- dpu_mdss->hwversion = readl_relaxed(dpu_mdss->mmio);
- pm_runtime_put_sync(dev->dev);
-
- priv->mdss = &dpu_mdss->base;
-
- return ret;
-
-irq_error:
- _dpu_mdss_irq_domain_fini(dpu_mdss);
-irq_domain_error:
- msm_dss_put_clk(mp->clk_config, mp->num_clk);
-clk_parse_err:
- devm_kfree(&pdev->dev, mp->clk_config);
- if (dpu_mdss->mmio)
- devm_iounmap(&pdev->dev, dpu_mdss->mmio);
- dpu_mdss->mmio = NULL;
- return ret;
-}
generated by cgit (git 2.34.1) at 2025-12-25 22:37:00 +0000