[PATCH 07/15] phy: qualcomm: add MSM8974 HDMI PHY driver
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Tue May 23 12:14:46 UTC 2023
Port the HDMI PHY driver for Qualcomm MSM8974 / APQ8074 platforms.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
drivers/phy/qualcomm/Kconfig | 11 +
drivers/phy/qualcomm/Makefile | 1 +
drivers/phy/qualcomm/phy-qcom-hdmi-msm8974.c | 531 +++++++++++++++++++
3 files changed, 543 insertions(+)
create mode 100644 drivers/phy/qualcomm/phy-qcom-hdmi-msm8974.c
diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig
index a603d4777a02..812e54390ad8 100644
--- a/drivers/phy/qualcomm/Kconfig
+++ b/drivers/phy/qualcomm/Kconfig
@@ -64,6 +64,17 @@ config PHY_QCOM_HDMI_MSM8960
Enable this to support the Qualcomm HDMI PHY presend on MSM8960 and
APQ8064 platforms.
+config PHY_QCOM_HDMI_MSM8974
+ tristate "Qualcomm MSM8974 HDMI PHY driver"
+ depends on ARCH_QCOM || COMPILE_TEST
+ depends on OF
+ depends on COMMON_CLK
+ default DRM_MSM_HDMI && ARCH_MSM8974
+ select GENERIC_PHY
+ help
+ Enable this to support the Qualcomm HDMI PHY presend on MSM8974 and
+ APQ8074 platforms.
+
config PHY_QCOM_PCIE2
tristate "Qualcomm PCIe Gen2 PHY Driver"
depends on OF && COMMON_CLK && (ARCH_QCOM || COMPILE_TEST)
diff --git a/drivers/phy/qualcomm/Makefile b/drivers/phy/qualcomm/Makefile
index cbc730c074ad..6e73b1ff4692 100644
--- a/drivers/phy/qualcomm/Makefile
+++ b/drivers/phy/qualcomm/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_PHY_QCOM_IPQ4019_USB) += phy-qcom-ipq4019-usb.o
obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA) += phy-qcom-ipq806x-sata.o
obj-$(CONFIG_PHY_QCOM_HDMI_MSM8X60) += phy-qcom-hdmi-msm8x60.o
obj-$(CONFIG_PHY_QCOM_HDMI_MSM8960) += phy-qcom-hdmi-msm8960.o
+obj-$(CONFIG_PHY_QCOM_HDMI_MSM8974) += phy-qcom-hdmi-msm8974.o
obj-$(CONFIG_PHY_QCOM_PCIE2) += phy-qcom-pcie2.o
phy-qcom-qmp-hdmi-y := \
diff --git a/drivers/phy/qualcomm/phy-qcom-hdmi-msm8974.c b/drivers/phy/qualcomm/phy-qcom-hdmi-msm8974.c
new file mode 100644
index 000000000000..d61aaea9eae6
--- /dev/null
+++ b/drivers/phy/qualcomm/phy-qcom-hdmi-msm8974.c
@@ -0,0 +1,531 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark at gmail.com>
+ * Copyright (c) 2023, Linaro Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/iopoll.h>
+#include <linux/of_device.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
+#include "phy-qcom-uniphy.h"
+
+#define REG_HDMI_8x74_ANA_CFG0 0x00000000
+#define REG_HDMI_8x74_ANA_CFG1 0x00000004
+#define REG_HDMI_8x74_ANA_CFG2 0x00000008
+#define REG_HDMI_8x74_ANA_CFG3 0x0000000c
+#define REG_HDMI_8x74_PD_CTRL0 0x00000010
+#define REG_HDMI_8x74_PD_CTRL1 0x00000014
+#define REG_HDMI_8x74_GLB_CFG 0x00000018
+#define REG_HDMI_8x74_DCC_CFG0 0x0000001c
+#define REG_HDMI_8x74_DCC_CFG1 0x00000020
+#define REG_HDMI_8x74_TXCAL_CFG0 0x00000024
+#define REG_HDMI_8x74_TXCAL_CFG1 0x00000028
+#define REG_HDMI_8x74_TXCAL_CFG2 0x0000002c
+#define REG_HDMI_8x74_TXCAL_CFG3 0x00000030
+#define REG_HDMI_8x74_BIST_CFG0 0x00000034
+#define REG_HDMI_8x74_BIST_PATN0 0x0000003c
+#define REG_HDMI_8x74_BIST_PATN1 0x00000040
+#define REG_HDMI_8x74_BIST_PATN2 0x00000044
+#define REG_HDMI_8x74_BIST_PATN3 0x00000048
+#define REG_HDMI_8x74_STATUS 0x0000005c
+
+#define HDMI_8974_VCO_MAX_FREQ 1800000000UL
+#define HDMI_8974_VCO_MIN_FREQ 600000000UL
+
+#define HDMI_8974_COMMON_DIV 5
+
+#define MAX_CLKS 2
+#define MAX_SUPPLIES 2
+
+struct qcom_hdmi_8974_phy {
+ struct device *dev;
+ struct phy *phy;
+ void __iomem *pll_reg;
+ void __iomem *phy_reg;
+
+ struct phy_configure_opts_hdmi hdmi_opts;
+
+ struct clk_hw pll_hw;
+ struct clk_bulk_data clks[MAX_CLKS];
+ struct regulator_bulk_data supplies[MAX_SUPPLIES];
+};
+
+#define hw_clk_to_phy(x) container_of(x, struct qcom_hdmi_8974_phy, pll_hw)
+
+static inline void hdmi_phy_write(struct qcom_hdmi_8974_phy *phy, int offset,
+ u32 data)
+{
+ writel(data, phy->phy_reg + offset);
+}
+
+static inline u32 hdmi_phy_read(struct qcom_hdmi_8974_phy *phy, int offset)
+{
+ return readl(phy->phy_reg + offset);
+}
+
+static inline void hdmi_pll_write(struct qcom_hdmi_8974_phy *phy, int offset,
+ u32 data)
+{
+ writel(data, phy->pll_reg + offset);
+}
+
+static inline u32 hdmi_pll_read(struct qcom_hdmi_8974_phy *phy, int offset)
+{
+ return readl(phy->pll_reg + offset);
+}
+
+static void qcom_uniphy_setup(void __iomem *base, unsigned int ref_freq,
+ bool sdm_mode,
+ bool ref_freq_mult_2,
+ bool dither,
+ unsigned int refclk_div,
+ unsigned int vco_freq)
+{
+ unsigned int int_ref_freq = ref_freq * (ref_freq_mult_2 ? 2 : 1);
+ unsigned int div_in_freq = vco_freq / refclk_div;
+ unsigned int dc_offset = div_in_freq / int_ref_freq - 1;
+ unsigned int sdm_freq_seed;
+ unsigned int val;
+ unsigned int remain = div_in_freq - (dc_offset + 1) * int_ref_freq;
+ sdm_freq_seed = mult_frac(remain, 0x10000, int_ref_freq);
+
+ val = (ref_freq_mult_2 ? BIT(0) : 0) |
+ ((refclk_div - 1) << 2);
+ writel(val, base + UNIPHY_PLL_REFCLK_CFG);
+
+ writel(sdm_mode ? 0 : 0x40 + dc_offset, base + UNIPHY_PLL_SDM_CFG0);
+
+ writel(dither ? 0x40 + dc_offset: 0, base + UNIPHY_PLL_SDM_CFG1);
+
+ writel(sdm_freq_seed & 0xff, base + UNIPHY_PLL_SDM_CFG2);
+
+ writel((sdm_freq_seed >> 8) & 0xff, base + UNIPHY_PLL_SDM_CFG3);
+
+ writel(sdm_freq_seed >> 16, base + UNIPHY_PLL_SDM_CFG4);
+
+ ref_freq = ref_freq * 5 / 1000;
+ writel(ref_freq & 0xff, base + UNIPHY_PLL_CAL_CFG8);
+
+ writel(ref_freq >> 8, base + UNIPHY_PLL_CAL_CFG9);
+
+ vco_freq /= 1000;
+ writel(vco_freq & 0xff, base + UNIPHY_PLL_CAL_CFG10);
+
+ writel(vco_freq >> 8, base + UNIPHY_PLL_CAL_CFG11);
+}
+
+static unsigned long qcom_uniphy_recalc(void __iomem *base, unsigned long parent_rate)
+{
+ unsigned long rate;
+ u32 refclk_cfg;
+ u32 dc_offset;
+ u64 fraq_n;
+ u32 val;
+
+ refclk_cfg = readl(base + UNIPHY_PLL_REFCLK_CFG);
+ if (refclk_cfg & BIT(0))
+ parent_rate *= 2;
+
+ val = readl(base + UNIPHY_PLL_SDM_CFG0);
+ if (val & 0x40) {
+ dc_offset = val & 0x3f;
+ fraq_n = 0;
+ } else {
+ dc_offset = readl(base + UNIPHY_PLL_SDM_CFG1) & 0x3f;
+ fraq_n = readl(base + UNIPHY_PLL_SDM_CFG2) |
+ (readl(base + UNIPHY_PLL_SDM_CFG3) << 8);
+ }
+
+ rate = (dc_offset + 1) * parent_rate;
+ rate += mult_frac(fraq_n, parent_rate, 0x10000);
+
+ rate *= (refclk_cfg >> 2) * 0x3 + 1;
+
+ return rate;
+}
+
+static const unsigned int qcom_hdmi_8974_divs[] = {1, 2, 4, 6};
+
+static unsigned long qcom_hdmi_8974_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = hw_clk_to_phy(hw);
+ u32 div_idx = hdmi_pll_read(hdmi_phy, UNIPHY_PLL_POSTDIV1_CFG);
+
+ return qcom_uniphy_recalc(hdmi_phy->pll_reg, parent_rate) / 5 / qcom_hdmi_8974_divs[div_idx & 0x3];
+}
+
+static long qcom_hdmi_8974_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ return clamp(rate,
+ HDMI_8974_VCO_MIN_FREQ / HDMI_8974_COMMON_DIV / 6,
+ HDMI_8974_VCO_MAX_FREQ / HDMI_8974_COMMON_DIV / 1);
+}
+
+static const struct clk_ops qcom_hdmi_8974_pll_ops = {
+ .recalc_rate = qcom_hdmi_8974_pll_recalc_rate,
+ .round_rate = qcom_hdmi_8974_pll_round_rate,
+};
+
+static int qcom_hdmi_8974_phy_find_div(unsigned int pixclk)
+{
+ int i;
+ unsigned int min_freq = HDMI_8974_VCO_MIN_FREQ / HDMI_8974_COMMON_DIV / 1000;
+
+ if (pixclk > HDMI_8974_VCO_MAX_FREQ / HDMI_8974_COMMON_DIV / 1000)
+ return -E2BIG;
+
+ for (i = 0; i < ARRAY_SIZE(qcom_hdmi_8974_divs); i++) {
+ if (pixclk >= min_freq / qcom_hdmi_8974_divs[i])
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+static int qcom_hdmi_8974_phy_pll_set_rate(struct qcom_hdmi_8974_phy *hdmi_phy)
+{
+ unsigned int pixclk = hdmi_phy->hdmi_opts.pixel_clk_rate;
+ unsigned long vco_rate;
+ unsigned int div;
+ int div_idx = 0;
+
+ div_idx = qcom_hdmi_8974_phy_find_div(pixclk);
+ if (WARN_ON(div_idx < 0))
+ return div_idx;
+
+ div = qcom_hdmi_8974_divs[div_idx];
+ vco_rate = pixclk * HDMI_8974_COMMON_DIV * div;
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_GLB_CFG, 0x81);
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0x01);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_VCOLPF_CFG, 0x19);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_LPFR_CFG, 0x0e);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_LPFC1_CFG, 0x20);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_LPFC2_CFG, 0x0d);
+
+ qcom_uniphy_setup(hdmi_phy->pll_reg, 19200, true, true, true, 1, vco_rate);
+ qcom_uniphy_recalc(hdmi_phy->pll_reg, 19200);
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_LKDET_CFG0, 0x10);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_LKDET_CFG1, 0x1a);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_LKDET_CFG2, 0x05);
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_POSTDIV1_CFG, div_idx);
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_POSTDIV2_CFG, 0x00);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_POSTDIV3_CFG, 0x00);
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_CAL_CFG2, 0x01);
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_PD_CTRL0, 0x1f);
+ udelay(50);
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0x0f);
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_PD_CTRL1, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG2, 0x10);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG0, 0xdb);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG1, 0x43);
+ if (pixclk == 297000) {
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG2, 0x06);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG3, 0x03);
+ } else if (pixclk == 268500) {
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG2, 0x05);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG3, 0x00);
+ } else {
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG2, 0x02);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG3, 0x00);
+ }
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_VREG_CFG, 0x04);
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_DCC_CFG0, 0xd0);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_DCC_CFG1, 0x1a);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_TXCAL_CFG0, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_TXCAL_CFG1, 0x00);
+ if (pixclk == 268500) {
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_TXCAL_CFG2, 0x11);
+ } else {
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_TXCAL_CFG2, 0x02);
+ }
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_TXCAL_CFG3, 0x05);
+ udelay(200);
+
+ return 0;
+}
+
+static int qcom_hdmi_8974_phy_pll_enable(struct qcom_hdmi_8974_phy *hdmi_phy)
+{
+ int ret;
+ unsigned long status;
+
+ /* Global enable */
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_GLB_CFG, 0x81);
+
+ /* Power up power gen */
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_PD_CTRL0, 0x00);
+ udelay(350);
+
+ /* PLL power up */
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0x01);
+ udelay(5);
+
+ /* Power up PLL LDO */
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0x03);
+ udelay(350);
+
+ /* PLL power up */
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0x0f);
+ udelay(350);
+
+ /* Poll for PLL ready status */
+ ret = readl_poll_timeout(hdmi_phy->pll_reg + UNIPHY_PLL_STATUS,
+ status, status & BIT(0),
+ 100, 2000);
+ if (ret) {
+ dev_warn(hdmi_phy->dev, "HDMI PLL not ready\n");
+ goto err;
+ }
+
+ udelay(350);
+
+ /* Poll for PHY ready status */
+ ret = readl_poll_timeout(hdmi_phy->phy_reg + REG_HDMI_8x74_STATUS,
+ status, status & BIT(0),
+ 100, 2000);
+ if (ret) {
+ dev_warn(hdmi_phy->dev, "HDMI PHY not ready\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0);
+ udelay(5);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_GLB_CFG, 0);
+
+ return ret;
+}
+
+static int qcom_hdmi_8974_phy_power_on(struct phy *phy)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = phy_get_drvdata(phy);
+ int ret;
+
+ ret = qcom_hdmi_8974_phy_pll_set_rate(hdmi_phy);
+ if (ret)
+ return ret;
+
+ ret = qcom_hdmi_8974_phy_pll_enable(hdmi_phy);
+ if (ret)
+ return ret;
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG0, 0x1b);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_ANA_CFG1, 0xf2);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_BIST_CFG0, 0x0);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_BIST_PATN0, 0x0);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_BIST_PATN1, 0x0);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_BIST_PATN2, 0x0);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_BIST_PATN3, 0x0);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_PD_CTRL1, 0x20);
+
+ return 0;
+}
+
+static int qcom_hdmi_8974_phy_power_off(struct phy *phy)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_PD_CTRL0, 0x7f);
+
+ hdmi_pll_write(hdmi_phy, UNIPHY_PLL_GLB_CFG, 0);
+ udelay(5);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8x74_GLB_CFG, 0);
+
+ return 0;
+}
+
+static int qcom_hdmi_8974_phy_init(struct phy *phy)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ return pm_runtime_resume_and_get(hdmi_phy->dev);
+}
+
+static int qcom_hdmi_8974_phy_exit(struct phy *phy)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ pm_runtime_put_noidle(hdmi_phy->dev);
+
+ return 0;
+}
+
+static int qcom_hdmi_8974_phy_configure(struct phy *phy, union phy_configure_opts *opts)
+{
+ const struct phy_configure_opts_hdmi *hdmi_opts = &opts->hdmi;
+ struct qcom_hdmi_8974_phy *hdmi_phy = phy_get_drvdata(phy);
+ int ret = 0;
+
+ memcpy(&hdmi_phy->hdmi_opts, hdmi_opts, sizeof(*hdmi_opts));
+
+ return ret;
+}
+
+static int __maybe_unused qcom_hdmi_8974_runtime_resume(struct device *dev)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = dev_get_drvdata(dev);
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(hdmi_phy->supplies), hdmi_phy->supplies);
+ if (ret)
+ return ret;
+
+ ret = clk_bulk_prepare_enable(ARRAY_SIZE(hdmi_phy->clks), hdmi_phy->clks);
+ if (ret)
+ goto out_disable_supplies;
+
+ return 0;
+
+out_disable_supplies:
+ regulator_bulk_disable(ARRAY_SIZE(hdmi_phy->supplies), hdmi_phy->supplies);
+
+ return ret;
+}
+
+static int __maybe_unused qcom_hdmi_8974_runtime_suspend(struct device *dev)
+{
+ struct qcom_hdmi_8974_phy *hdmi_phy = dev_get_drvdata(dev);
+
+ clk_bulk_disable_unprepare(ARRAY_SIZE(hdmi_phy->clks), hdmi_phy->clks);
+ regulator_bulk_disable(ARRAY_SIZE(hdmi_phy->supplies), hdmi_phy->supplies);
+
+ return 0;
+}
+
+static const struct phy_ops qcom_hdmi_8974_phy_ops = {
+ .init = qcom_hdmi_8974_phy_init,
+ .configure = qcom_hdmi_8974_phy_configure,
+ .power_on = qcom_hdmi_8974_phy_power_on,
+ .power_off = qcom_hdmi_8974_phy_power_off,
+ .exit = qcom_hdmi_8974_phy_exit,
+ .owner = THIS_MODULE,
+};
+
+static int qcom_hdmi_8974_probe(struct platform_device *pdev)
+{
+ struct clk_init_data init = {
+ .name = "hdmipll",
+ .ops = &qcom_hdmi_8974_pll_ops,
+ .parent_data = (const struct clk_parent_data[]) {
+ { .fw_name = "xo", .name = "xo_board" },
+ },
+ .flags = CLK_GET_RATE_NOCACHE,
+ .num_parents = 1,
+ };
+ struct phy_provider *phy_provider;
+ struct device *dev = &pdev->dev;
+ struct qcom_hdmi_8974_phy *hdmi_phy;
+ int ret;
+
+ hdmi_phy = devm_kzalloc(dev, sizeof(*hdmi_phy), GFP_KERNEL);
+ if (!hdmi_phy)
+ return -ENOMEM;
+
+ hdmi_phy->dev = dev;
+
+ hdmi_phy->phy_reg = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(hdmi_phy->phy_reg))
+ return PTR_ERR(hdmi_phy->phy_reg);
+
+ hdmi_phy->pll_reg = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(hdmi_phy->pll_reg))
+ return PTR_ERR(hdmi_phy->pll_reg);
+
+ hdmi_phy->clks[0].id = "iface";
+ hdmi_phy->clks[1].id = "alt_iface";
+ ret = devm_clk_bulk_get(dev, ARRAY_SIZE(hdmi_phy->clks), hdmi_phy->clks);
+ if (ret)
+ return ret;
+
+ hdmi_phy->supplies[0].supply = "vddio";
+ hdmi_phy->supplies[0].init_load_uA = 100000;
+ hdmi_phy->supplies[1].supply = "core-vdda";
+ hdmi_phy->supplies[1].init_load_uA = 10000;
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(hdmi_phy->supplies), hdmi_phy->supplies);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(pdev, hdmi_phy);
+
+ ret = devm_pm_runtime_enable(&pdev->dev);
+ if (ret)
+ return ret;
+
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret)
+ return ret;
+
+ hdmi_phy->pll_hw.init = &init;
+ ret = devm_clk_hw_register(hdmi_phy->dev, &hdmi_phy->pll_hw);
+ if (ret)
+ goto err;
+
+ ret = devm_of_clk_add_hw_provider(hdmi_phy->dev, of_clk_hw_simple_get, &hdmi_phy->pll_hw);
+ if (ret)
+ goto err;
+
+ hdmi_phy->phy = devm_phy_create(dev, pdev->dev.of_node, &qcom_hdmi_8974_phy_ops);
+ if (IS_ERR(hdmi_phy->phy)) {
+ ret = PTR_ERR(hdmi_phy->phy);
+ goto err;
+ }
+
+ phy_set_drvdata(hdmi_phy->phy, hdmi_phy);
+
+ phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+ pm_runtime_put_noidle(&pdev->dev);
+ return PTR_ERR_OR_ZERO(phy_provider);
+
+err:
+ pm_runtime_put_noidle(&pdev->dev);
+ return ret;
+}
+
+static const struct of_device_id qcom_hdmi_8974_of_match_table[] = {
+ {
+ .compatible = "qcom,hdmi-phy-8974",
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, qcom_hdmi_8974_of_match_table);
+
+DEFINE_RUNTIME_DEV_PM_OPS(qcom_hdmi_8974_pm_ops,
+ qcom_hdmi_8974_runtime_suspend,
+ qcom_hdmi_8974_runtime_resume,
+ NULL);
+
+static struct platform_driver qcom_hdmi_8974_driver = {
+ .probe = qcom_hdmi_8974_probe,
+ .driver = {
+ .name = "qcom-8974-hdmi-phy",
+ .of_match_table = qcom_hdmi_8974_of_match_table,
+ .pm = &qcom_hdmi_8974_pm_ops,
+ },
+};
+
+module_platform_driver(qcom_hdmi_8974_driver);
+
+MODULE_AUTHOR("Dmitry Baryshkov <dmitry.baryshkov at linaro.org>");
+MODULE_DESCRIPTION("Qualcomm MSM8974 HDMI PHY driver");
+MODULE_LICENSE("GPL");
--
2.39.2
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