diff options
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c')
-rw-r--r-- | drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 97 |
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); |