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path: root/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
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Diffstat (limited to 'drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c')
-rw-r--r--drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c97
1 files changed, 53 insertions, 44 deletions
diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
index c9239708d398..b64d93da651d 100644
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
@@ -506,9 +506,60 @@ static void sun8i_hdmi_phy_init_h3(struct sun8i_hdmi_phy *phy)
phy->rcal = (val & SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK) >> 2;
}
-void sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy)
+int sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy)
{
+ int ret;
+
+ ret = reset_control_deassert(phy->rst_phy);
+ if (ret) {
+ dev_err(phy->dev, "Cannot deassert phy reset control: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(phy->clk_bus);
+ if (ret) {
+ dev_err(phy->dev, "Cannot enable bus clock: %d\n", ret);
+ goto err_assert_rst_phy;
+ }
+
+ ret = clk_prepare_enable(phy->clk_mod);
+ if (ret) {
+ dev_err(phy->dev, "Cannot enable mod clock: %d\n", ret);
+ goto err_disable_clk_bus;
+ }
+
+ if (phy->variant->has_phy_clk) {
+ ret = sun8i_phy_clk_create(phy, phy->dev,
+ phy->variant->has_second_pll);
+ if (ret) {
+ dev_err(phy->dev, "Couldn't create the PHY clock\n");
+ goto err_disable_clk_mod;
+ }
+
+ clk_prepare_enable(phy->clk_phy);
+ }
+
phy->variant->phy_init(phy);
+
+ return 0;
+
+err_disable_clk_mod:
+ clk_disable_unprepare(phy->clk_mod);
+err_disable_clk_bus:
+ clk_disable_unprepare(phy->clk_bus);
+err_assert_rst_phy:
+ reset_control_assert(phy->rst_phy);
+
+ return ret;
+}
+
+void sun8i_hdmi_phy_deinit(struct sun8i_hdmi_phy *phy)
+{
+ clk_disable_unprepare(phy->clk_mod);
+ clk_disable_unprepare(phy->clk_bus);
+ clk_disable_unprepare(phy->clk_phy);
+
+ reset_control_assert(phy->rst_phy);
}
void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
@@ -638,6 +689,7 @@ static int sun8i_hdmi_phy_probe(struct platform_device *pdev)
return -ENOMEM;
phy->variant = (struct sun8i_hdmi_phy_variant *)match->data;
+ phy->dev = dev;
ret = of_address_to_resource(node, 0, &res);
if (ret) {
@@ -696,47 +748,10 @@ static int sun8i_hdmi_phy_probe(struct platform_device *pdev)
goto err_put_clk_pll1;
}
- ret = reset_control_deassert(phy->rst_phy);
- if (ret) {
- dev_err(dev, "Cannot deassert phy reset control: %d\n", ret);
- goto err_put_rst_phy;
- }
-
- ret = clk_prepare_enable(phy->clk_bus);
- if (ret) {
- dev_err(dev, "Cannot enable bus clock: %d\n", ret);
- goto err_deassert_rst_phy;
- }
-
- ret = clk_prepare_enable(phy->clk_mod);
- if (ret) {
- dev_err(dev, "Cannot enable mod clock: %d\n", ret);
- goto err_disable_clk_bus;
- }
-
- if (phy->variant->has_phy_clk) {
- ret = sun8i_phy_clk_create(phy, dev,
- phy->variant->has_second_pll);
- if (ret) {
- dev_err(dev, "Couldn't create the PHY clock\n");
- goto err_disable_clk_mod;
- }
-
- clk_prepare_enable(phy->clk_phy);
- }
-
platform_set_drvdata(pdev, phy);
return 0;
-err_disable_clk_mod:
- clk_disable_unprepare(phy->clk_mod);
-err_disable_clk_bus:
- clk_disable_unprepare(phy->clk_bus);
-err_deassert_rst_phy:
- reset_control_assert(phy->rst_phy);
-err_put_rst_phy:
- reset_control_put(phy->rst_phy);
err_put_clk_pll1:
clk_put(phy->clk_pll1);
err_put_clk_pll0:
@@ -753,12 +768,6 @@ static int sun8i_hdmi_phy_remove(struct platform_device *pdev)
{
struct sun8i_hdmi_phy *phy = platform_get_drvdata(pdev);
- clk_disable_unprepare(phy->clk_mod);
- clk_disable_unprepare(phy->clk_bus);
- clk_disable_unprepare(phy->clk_phy);
-
- reset_control_assert(phy->rst_phy);
-
reset_control_put(phy->rst_phy);
clk_put(phy->clk_pll0);