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drm/rockchip: vop: add multiple power domains support

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For rk3576 vopl, the vopl is in RK3576_PD_VPU, but the
1to4 module, which helps to support eDP/HDMI/MIPI, is
in RK3576_PD_VO0.

Change-Id: I56e5f640c5fe94e6aa7cc4c7fb79df27e1410a00
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
This commit is contained in:
Damon Ding
2024-03-22 17:38:46 +08:00
committed by Tao Huang
parent 46bee21f7d
commit 7e45c8a92c
1 changed files with 51 additions and 2 deletions
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53
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@@ -18,6 +18,7 @@
#include <linux/of_device.h>
#include <linux/overflow.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/reset.h>
@@ -223,6 +224,8 @@ struct vop_win {
struct vop {
struct rockchip_crtc rockchip_crtc;
struct device *dev;
struct device *genpd_dev0;
struct device *genpd_dev1;
struct drm_device *drm_dev;
struct dentry *debugfs;
struct drm_info_list *debugfs_files;
@@ -1594,10 +1597,28 @@ static void vop_power_enable(struct drm_crtc *crtc)
goto err_disable_dclk;
}
ret = pm_runtime_get_sync(vop->dev);
if (vop->genpd_dev0) {
ret = pm_runtime_resume_and_get(vop->genpd_dev0);
if (ret < 0) {
dev_err(vop->dev,
"failed to get pm runtime for pd0, ret = %d\n", ret);
goto err_disable_aclk;
}
}
if (vop->genpd_dev1) {
ret = pm_runtime_resume_and_get(vop->genpd_dev1);
if (ret < 0) {
dev_err(vop->dev,
"failed to get pm runtime for pd1, ret = %d\n", ret);
goto err_put_genpd_dev0;
}
}
ret = pm_runtime_resume_and_get(vop->dev);
if (ret < 0) {
dev_err(vop->dev, "failed to get pm runtime: %d\n", ret);
return;
goto err_put_genpd_dev1;
}
vop_regsbak(vop);
@@ -1616,6 +1637,12 @@ static void vop_power_enable(struct drm_crtc *crtc)
return;
err_put_genpd_dev1:
pm_runtime_put_sync(vop->genpd_dev1);
err_put_genpd_dev0:
pm_runtime_put_sync(vop->genpd_dev0);
err_disable_aclk:
clk_disable_unprepare(vop->aclk);
err_disable_dclk:
clk_disable_unprepare(vop->dclk);
err_disable_hclk:
@@ -1724,6 +1751,13 @@ static void vop_crtc_atomic_disable(struct drm_crtc *crtc,
}
pm_runtime_put_sync(vop->dev);
if (vop->genpd_dev1)
pm_runtime_put_sync(vop->genpd_dev1);
if (vop->genpd_dev0)
pm_runtime_put_sync(vop->genpd_dev0);
clk_disable_unprepare(vop->dclk);
clk_disable_unprepare(vop->aclk);
clk_disable_unprepare(vop->hclk);
@@ -5218,6 +5252,7 @@ static int vop_bind(struct device *dev, struct device *master, void *data)
struct drm_device *drm_dev = data;
struct vop *vop;
struct resource *res;
struct device *virt_dev = NULL;
size_t alloc_size;
int ret, irq, i;
int num_wins = 0;
@@ -5330,6 +5365,14 @@ static int vop_bind(struct device *dev, struct device *master, void *data)
pm_runtime_enable(&pdev->dev);
if (of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells") > 1) {
virt_dev = dev_pm_domain_attach_by_name(dev, "pd0");
if (!IS_ERR(virt_dev))
vop->genpd_dev0 = virt_dev;
virt_dev = dev_pm_domain_attach_by_name(dev, "pd1");
if (!IS_ERR(virt_dev))
vop->genpd_dev1 = virt_dev;
}
mcu = of_get_child_by_name(dev->of_node, "mcu-timing");
if (!mcu) {
@@ -5365,6 +5408,12 @@ static void vop_unbind(struct device *dev, struct device *master, void *data)
{
struct vop *vop = dev_get_drvdata(dev);
if (vop->genpd_dev1)
dev_pm_domain_detach(vop->genpd_dev1, true);
if (vop->genpd_dev0)
dev_pm_domain_detach(vop->genpd_dev0, true);
pm_runtime_disable(dev);
vop_destroy_crtc(vop);
}