diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_hdmi_phy.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_hdmi_phy.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c deleted file mode 100644 index 5223498502c4..000000000000 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_phy.c +++ /dev/null @@ -1,210 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (c) 2018 MediaTek Inc. - * Author: Jie Qiu <jie.qiu@mediatek.com> - */ - -#include "mtk_hdmi_phy.h" - -static int mtk_hdmi_phy_power_on(struct phy *phy); -static int mtk_hdmi_phy_power_off(struct phy *phy); - -static const struct phy_ops mtk_hdmi_phy_dev_ops = { - .power_on = mtk_hdmi_phy_power_on, - .power_off = mtk_hdmi_phy_power_off, - .owner = THIS_MODULE, -}; - -void mtk_hdmi_phy_clear_bits(struct mtk_hdmi_phy *hdmi_phy, u32 offset, - u32 bits) -{ - void __iomem *reg = hdmi_phy->regs + offset; - u32 tmp; - - tmp = readl(reg); - tmp &= ~bits; - writel(tmp, reg); -} - -void mtk_hdmi_phy_set_bits(struct mtk_hdmi_phy *hdmi_phy, u32 offset, - u32 bits) -{ - void __iomem *reg = hdmi_phy->regs + offset; - u32 tmp; - - tmp = readl(reg); - tmp |= bits; - writel(tmp, reg); -} - -void mtk_hdmi_phy_mask(struct mtk_hdmi_phy *hdmi_phy, u32 offset, - u32 val, u32 mask) -{ - void __iomem *reg = hdmi_phy->regs + offset; - u32 tmp; - - tmp = readl(reg); - tmp = (tmp & ~mask) | (val & mask); - writel(tmp, reg); -} - -inline struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw) -{ - return container_of(hw, struct mtk_hdmi_phy, pll_hw); -} - -static int mtk_hdmi_phy_power_on(struct phy *phy) -{ - struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy); - int ret; - - ret = clk_prepare_enable(hdmi_phy->pll); - if (ret < 0) - return ret; - - hdmi_phy->conf->hdmi_phy_enable_tmds(hdmi_phy); - return 0; -} - -static int mtk_hdmi_phy_power_off(struct phy *phy) -{ - struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy); - - hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy); - clk_disable_unprepare(hdmi_phy->pll); - - return 0; -} - -static const struct phy_ops * -mtk_hdmi_phy_dev_get_ops(const struct mtk_hdmi_phy *hdmi_phy) -{ - if (hdmi_phy && hdmi_phy->conf && - hdmi_phy->conf->hdmi_phy_enable_tmds && - hdmi_phy->conf->hdmi_phy_disable_tmds) - return &mtk_hdmi_phy_dev_ops; - - dev_err(hdmi_phy->dev, "Failed to get dev ops of phy\n"); - return NULL; -} - -static void mtk_hdmi_phy_clk_get_data(struct mtk_hdmi_phy *hdmi_phy, - struct clk_init_data *clk_init) -{ - clk_init->flags = hdmi_phy->conf->flags; - clk_init->ops = hdmi_phy->conf->hdmi_phy_clk_ops; -} - -static int mtk_hdmi_phy_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct mtk_hdmi_phy *hdmi_phy; - struct resource *mem; - struct clk *ref_clk; - const char *ref_clk_name; - struct clk_init_data clk_init = { - .num_parents = 1, - .parent_names = (const char * const *)&ref_clk_name, - }; - - struct phy *phy; - struct phy_provider *phy_provider; - int ret; - - hdmi_phy = devm_kzalloc(dev, sizeof(*hdmi_phy), GFP_KERNEL); - if (!hdmi_phy) - return -ENOMEM; - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hdmi_phy->regs = devm_ioremap_resource(dev, mem); - if (IS_ERR(hdmi_phy->regs)) { - ret = PTR_ERR(hdmi_phy->regs); - dev_err(dev, "Failed to get memory resource: %d\n", ret); - return ret; - } - - ref_clk = devm_clk_get(dev, "pll_ref"); - if (IS_ERR(ref_clk)) { - ret = PTR_ERR(ref_clk); - dev_err(&pdev->dev, "Failed to get PLL reference clock: %d\n", - ret); - return ret; - } - ref_clk_name = __clk_get_name(ref_clk); - - ret = of_property_read_string(dev->of_node, "clock-output-names", - &clk_init.name); - if (ret < 0) { - dev_err(dev, "Failed to read clock-output-names: %d\n", ret); - return ret; - } - - hdmi_phy->dev = dev; - hdmi_phy->conf = - (struct mtk_hdmi_phy_conf *)of_device_get_match_data(dev); - mtk_hdmi_phy_clk_get_data(hdmi_phy, &clk_init); - hdmi_phy->pll_hw.init = &clk_init; - hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw); - if (IS_ERR(hdmi_phy->pll)) { - ret = PTR_ERR(hdmi_phy->pll); - dev_err(dev, "Failed to register PLL: %d\n", ret); - return ret; - } - - ret = of_property_read_u32(dev->of_node, "mediatek,ibias", - &hdmi_phy->ibias); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get ibias: %d\n", ret); - return ret; - } - - ret = of_property_read_u32(dev->of_node, "mediatek,ibias_up", - &hdmi_phy->ibias_up); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get ibias up: %d\n", ret); - return ret; - } - - dev_info(dev, "Using default TX DRV impedance: 4.2k/36\n"); - hdmi_phy->drv_imp_clk = 0x30; - hdmi_phy->drv_imp_d2 = 0x30; - hdmi_phy->drv_imp_d1 = 0x30; - hdmi_phy->drv_imp_d0 = 0x30; - - phy = devm_phy_create(dev, NULL, mtk_hdmi_phy_dev_get_ops(hdmi_phy)); - if (IS_ERR(phy)) { - dev_err(dev, "Failed to create HDMI PHY\n"); - return PTR_ERR(phy); - } - phy_set_drvdata(phy, hdmi_phy); - - phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); - if (IS_ERR(phy_provider)) { - dev_err(dev, "Failed to register HDMI PHY\n"); - return PTR_ERR(phy_provider); - } - - return of_clk_add_provider(dev->of_node, of_clk_src_simple_get, - hdmi_phy->pll); -} - -static const struct of_device_id mtk_hdmi_phy_match[] = { - { .compatible = "mediatek,mt2701-hdmi-phy", - .data = &mtk_hdmi_phy_2701_conf, - }, - { .compatible = "mediatek,mt8173-hdmi-phy", - .data = &mtk_hdmi_phy_8173_conf, - }, - {}, -}; - -struct platform_driver mtk_hdmi_phy_driver = { - .probe = mtk_hdmi_phy_probe, - .driver = { - .name = "mediatek-hdmi-phy", - .of_match_table = mtk_hdmi_phy_match, - }, -}; - -MODULE_DESCRIPTION("MediaTek HDMI PHY Driver"); -MODULE_LICENSE("GPL v2"); |