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authorDave Airlie <airlied@redhat.com>2017-06-16 06:58:27 +0300
committerDave Airlie <airlied@redhat.com>2017-06-16 06:58:27 +0300
commit925344ccc91d7a7fd84cab2dece1c34bbd86fd8c (patch)
treebd4110dc5a3b70a5674b9d6d5340cc1889f5d6e8 /drivers/gpu/ipu-v3/ipu-pre.c
parenta6821698918a579e7219d706092e83f367f01ba2 (diff)
parent32c1431eea4881a6b17bd7c639315010aeefa452 (diff)
downloadlinux-925344ccc91d7a7fd84cab2dece1c34bbd86fd8c.tar.xz
BackMerge tag 'v4.12-rc5' into drm-next
Linux 4.12-rc5 for nouveau fixes
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-pre.c')
-rw-r--r--drivers/gpu/ipu-v3/ipu-pre.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-pre.c b/drivers/gpu/ipu-v3/ipu-pre.c
index c55563379e2e..c35f74c83065 100644
--- a/drivers/gpu/ipu-v3/ipu-pre.c
+++ b/drivers/gpu/ipu-v3/ipu-pre.c
@@ -131,8 +131,6 @@ int ipu_pre_get(struct ipu_pre *pre)
if (pre->in_use)
return -EBUSY;
- clk_prepare_enable(pre->clk_axi);
-
/* first get the engine out of reset and remove clock gating */
writel(0, pre->regs + IPU_PRE_CTRL);
@@ -149,12 +147,7 @@ int ipu_pre_get(struct ipu_pre *pre)
void ipu_pre_put(struct ipu_pre *pre)
{
- u32 val;
-
- val = IPU_PRE_CTRL_SFTRST | IPU_PRE_CTRL_CLKGATE;
- writel(val, pre->regs + IPU_PRE_CTRL);
-
- clk_disable_unprepare(pre->clk_axi);
+ writel(IPU_PRE_CTRL_SFTRST, pre->regs + IPU_PRE_CTRL);
pre->in_use = false;
}
@@ -249,6 +242,8 @@ static int ipu_pre_probe(struct platform_device *pdev)
if (!pre->buffer_virt)
return -ENOMEM;
+ clk_prepare_enable(pre->clk_axi);
+
pre->dev = dev;
platform_set_drvdata(pdev, pre);
mutex_lock(&ipu_pre_list_mutex);
@@ -268,6 +263,8 @@ static int ipu_pre_remove(struct platform_device *pdev)
available_pres--;
mutex_unlock(&ipu_pre_list_mutex);
+ clk_disable_unprepare(pre->clk_axi);
+
if (pre->buffer_virt)
gen_pool_free(pre->iram, (unsigned long)pre->buffer_virt,
IPU_PRE_MAX_WIDTH * IPU_PRE_NUM_SCANLINES * 4);