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Date: Fri, 6 Mar 2020 11:42:58 +0800
From: Tian Tao <tiantao6@...ilicon.com>
To: <puck.chen@...ilicon.com>, <airlied@...ux.ie>, <daniel@...ll.ch>,
<tzimmermann@...e.de>, <kraxel@...hat.com>,
<alexander.deucher@....com>, <tglx@...utronix.de>,
<dri-devel@...ts.freedesktop.org>, <xinliang.liu@...aro.org>,
<linux-kernel@...r.kernel.org>
CC: <linuxarm@...wei.com>
Subject: [PATCH] drm/hisilicon: Add the load and unload for hibmc_driver
using the load and unload function provided by drm framework instead of
doing the same work in the hibmc_pci_probe and do some code cleanup.
Signed-off-by: Tian Tao <tiantao6@...ilicon.com>
Signed-off-by: Gong junjie <gongjunjie2@...wei.com>
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 62 +++++++++----------------
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 2 +
2 files changed, 24 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 79a180a..51f1c70 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -23,7 +23,7 @@
#include <drm/drm_print.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
-
+#include <drm/drm_pci.h>
#include "hibmc_drm_drv.h"
#include "hibmc_drm_regs.h"
@@ -49,6 +49,8 @@ static irqreturn_t hibmc_drm_interrupt(int irq, void *arg)
static struct drm_driver hibmc_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
+ .load = hibmc_load,
+ .unload = hibmc_unload,
.fops = &hibmc_fops,
.name = "hibmc",
.date = "20160828",
@@ -232,6 +234,21 @@ static int hibmc_hw_map(struct hibmc_drm_private *priv)
return 0;
}
+static void hibmc_hw_unmap(struct hibmc_drm_private *priv)
+{
+ struct drm_device *dev = priv->dev;
+
+ if (priv->mmio) {
+ devm_iounmap(dev->dev, priv->mmio);
+ priv->mmio = NULL;
+ }
+
+ if (priv->fb_map) {
+ devm_iounmap(dev->dev, priv->fb_map);
+ priv->fb_map = NULL;
+ }
+}
+
static int hibmc_hw_init(struct hibmc_drm_private *priv)
{
int ret;
@@ -245,7 +262,7 @@ static int hibmc_hw_init(struct hibmc_drm_private *priv)
return 0;
}
-static int hibmc_unload(struct drm_device *dev)
+void hibmc_unload(struct drm_device *dev)
{
struct hibmc_drm_private *priv = dev->dev_private;
@@ -258,11 +275,12 @@ static int hibmc_unload(struct drm_device *dev)
hibmc_kms_fini(priv);
hibmc_mm_fini(priv);
+ hibmc_hw_unmap(priv);
dev->dev_private = NULL;
return 0;
}
-static int hibmc_load(struct drm_device *dev)
+int hibmc_load(struct drm_device *dev, unsigned long flags)
{
struct hibmc_drm_private *priv;
int ret;
@@ -332,43 +350,7 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
if (ret)
return ret;
- dev = drm_dev_alloc(&hibmc_driver, &pdev->dev);
- if (IS_ERR(dev)) {
- DRM_ERROR("failed to allocate drm_device\n");
- return PTR_ERR(dev);
- }
-
- dev->pdev = pdev;
- pci_set_drvdata(pdev, dev);
-
- ret = pci_enable_device(pdev);
- if (ret) {
- DRM_ERROR("failed to enable pci device: %d\n", ret);
- goto err_free;
- }
-
- ret = hibmc_load(dev);
- if (ret) {
- DRM_ERROR("failed to load hibmc: %d\n", ret);
- goto err_disable;
- }
-
- ret = drm_dev_register(dev, 0);
- if (ret) {
- DRM_ERROR("failed to register drv for userspace access: %d\n",
- ret);
- goto err_unload;
- }
- return 0;
-
-err_unload:
- hibmc_unload(dev);
-err_disable:
- pci_disable_device(pdev);
-err_free:
- drm_dev_put(dev);
-
- return ret;
+ return drm_get_pci_dev(pdev, ent, &hibmc_driver);
}
static void hibmc_pci_remove(struct pci_dev *pdev)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index 50a0c1f..4e89cd7 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
@@ -37,6 +37,8 @@ void hibmc_set_power_mode(struct hibmc_drm_private *priv,
void hibmc_set_current_gate(struct hibmc_drm_private *priv,
unsigned int gate);
+int hibmc_load(struct drm_device *dev, unsigned long flags);
+void hibmc_unload(struct drm_device *dev);
int hibmc_de_init(struct hibmc_drm_private *priv);
int hibmc_vdac_init(struct hibmc_drm_private *priv);
--
2.7.4
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