[Freedreno] [PATCH 03/15] phy: qualcomm: add MSM8960 HDMI PHY driver
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Tue May 23 12:14:42 UTC 2023
Port the HDMI PHY driver for Qualcomm MSM8960 / APQ8064 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-msm8960.c | 744 +++++++++++++++++++
3 files changed, 756 insertions(+)
create mode 100644 drivers/phy/qualcomm/phy-qcom-hdmi-msm8960.c
diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig
index 94fb5679df4a..838f93ad1168 100644
--- a/drivers/phy/qualcomm/Kconfig
+++ b/drivers/phy/qualcomm/Kconfig
@@ -42,6 +42,17 @@ config PHY_QCOM_IPQ806X_SATA
depends on OF
select GENERIC_PHY
+config PHY_QCOM_HDMI_MSM8960
+ tristate "Qualcomm MSM8960 HDMI PHY driver"
+ depends on ARCH_QCOM || COMPILE_TEST
+ depends on OF
+ depends on COMMON_CLK
+ default DRM_MSM_HDMI && ARCH_MSM8960
+ select GENERIC_PHY
+ help
+ Enable this to support the Qualcomm HDMI PHY presend on MSM8960 and
+ APQ8064 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 b877d86ea0b1..6d7d76c7fee0 100644
--- a/drivers/phy/qualcomm/Makefile
+++ b/drivers/phy/qualcomm/Makefile
@@ -4,6 +4,7 @@ obj-$(CONFIG_PHY_QCOM_APQ8064_SATA) += phy-qcom-apq8064-sata.o
obj-$(CONFIG_PHY_QCOM_EDP) += phy-qcom-edp.o
obj-$(CONFIG_PHY_QCOM_IPQ4019_USB) += phy-qcom-ipq4019-usb.o
obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA) += phy-qcom-ipq806x-sata.o
+obj-$(CONFIG_PHY_QCOM_HDMI_MSM8960) += phy-qcom-hdmi-msm8960.o
obj-$(CONFIG_PHY_QCOM_PCIE2) += phy-qcom-pcie2.o
phy-qcom-qmp-hdmi-y := \
diff --git a/drivers/phy/qualcomm/phy-qcom-hdmi-msm8960.c b/drivers/phy/qualcomm/phy-qcom-hdmi-msm8960.c
new file mode 100644
index 000000000000..338d132dc8c8
--- /dev/null
+++ b/drivers/phy/qualcomm/phy-qcom-hdmi-msm8960.c
@@ -0,0 +1,744 @@
+// 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>
+
+#define REG_HDMI_8960_PHY_REG0 0x00000000
+
+#define REG_HDMI_8960_PHY_REG1 0x00000004
+
+#define REG_HDMI_8960_PHY_REG2 0x00000008
+
+#define REG_HDMI_8960_PHY_REG3 0x0000000c
+
+#define REG_HDMI_8960_PHY_REG4 0x00000010
+
+#define REG_HDMI_8960_PHY_REG5 0x00000014
+
+#define REG_HDMI_8960_PHY_REG6 0x00000018
+
+#define REG_HDMI_8960_PHY_REG7 0x0000001c
+
+#define REG_HDMI_8960_PHY_REG8 0x00000020
+
+#define REG_HDMI_8960_PHY_REG9 0x00000024
+
+#define REG_HDMI_8960_PHY_REG10 0x00000028
+
+#define REG_HDMI_8960_PHY_REG11 0x0000002c
+
+#define REG_HDMI_8960_PHY_REG12 0x00000030
+#define HDMI_8960_PHY_REG12_SW_RESET 0x00000020
+#define HDMI_8960_PHY_REG12_PWRDN_B 0x00000080
+
+#define REG_HDMI_8960_PHY_REG_BIST_CFG 0x00000034
+
+#define REG_HDMI_8960_PHY_DEBUG_BUS_SEL 0x00000038
+
+#define REG_HDMI_8960_PHY_REG_MISC0 0x0000003c
+
+#define REG_HDMI_8960_PHY_REG13 0x00000040
+
+#define REG_HDMI_8960_PHY_REG14 0x00000044
+
+#define REG_HDMI_8960_PHY_REG15 0x00000048
+
+#define REG_HDMI_8960_PHY_PLL_REFCLK_CFG 0x00000000
+
+#define REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG 0x00000004
+
+#define REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 0x00000008
+
+#define REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 0x0000000c
+
+#define REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG 0x00000010
+
+#define REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG 0x00000014
+
+#define REG_HDMI_8960_PHY_PLL_PWRDN_B 0x00000018
+#define HDMI_8960_PHY_PLL_PWRDN_B_PD_PLL 0x00000002
+#define HDMI_8960_PHY_PLL_PWRDN_B_PLL_PWRDN_B 0x00000008
+
+#define REG_HDMI_8960_PHY_PLL_SDM_CFG0 0x0000001c
+
+#define REG_HDMI_8960_PHY_PLL_SDM_CFG1 0x00000020
+
+#define REG_HDMI_8960_PHY_PLL_SDM_CFG2 0x00000024
+
+#define REG_HDMI_8960_PHY_PLL_SDM_CFG3 0x00000028
+
+#define REG_HDMI_8960_PHY_PLL_SDM_CFG4 0x0000002c
+
+#define REG_HDMI_8960_PHY_PLL_SSC_CFG0 0x00000030
+
+#define REG_HDMI_8960_PHY_PLL_SSC_CFG1 0x00000034
+
+#define REG_HDMI_8960_PHY_PLL_SSC_CFG2 0x00000038
+
+#define REG_HDMI_8960_PHY_PLL_SSC_CFG3 0x0000003c
+
+#define REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 0x00000040
+
+#define REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 0x00000044
+
+#define REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 0x00000048
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 0x0000004c
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 0x00000050
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 0x00000054
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 0x00000058
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 0x0000005c
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 0x00000060
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 0x00000064
+
+#define REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 0x00000068
+
+#define REG_HDMI_8960_PHY_PLL_DEBUG_SEL 0x0000006c
+
+#define REG_HDMI_8960_PHY_PLL_MISC0 0x00000070
+
+#define REG_HDMI_8960_PHY_PLL_MISC1 0x00000074
+
+#define REG_HDMI_8960_PHY_PLL_MISC2 0x00000078
+
+#define REG_HDMI_8960_PHY_PLL_MISC3 0x0000007c
+
+#define REG_HDMI_8960_PHY_PLL_MISC4 0x00000080
+
+#define REG_HDMI_8960_PHY_PLL_MISC5 0x00000084
+
+#define REG_HDMI_8960_PHY_PLL_MISC6 0x00000088
+
+#define REG_HDMI_8960_PHY_PLL_DEBUG_BUS0 0x0000008c
+
+#define REG_HDMI_8960_PHY_PLL_DEBUG_BUS1 0x00000090
+
+#define REG_HDMI_8960_PHY_PLL_DEBUG_BUS2 0x00000094
+
+#define REG_HDMI_8960_PHY_PLL_STATUS0 0x00000098
+#define HDMI_8960_PHY_PLL_STATUS0_PLL_LOCK 0x00000001
+
+#define REG_HDMI_8960_PHY_PLL_STATUS1 0x0000009c
+
+struct qcom_hdmi_8960_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 *iface_clk;
+ struct regulator *vdda;
+};
+
+#define hw_clk_to_phy(x) container_of(x, struct qcom_hdmi_8960_phy, pll_hw)
+
+static inline void hdmi_phy_write(struct qcom_hdmi_8960_phy *phy, int offset,
+ u32 data)
+{
+ writel(data, phy->phy_reg + offset);
+}
+
+static inline u32 hdmi_phy_read(struct qcom_hdmi_8960_phy *phy, int offset)
+{
+ return readl(phy->phy_reg + offset);
+}
+
+static inline void hdmi_pll_write(struct qcom_hdmi_8960_phy *phy, int offset,
+ u32 data)
+{
+ writel(data, phy->pll_reg + offset);
+}
+
+static inline u32 hdmi_pll_read(struct qcom_hdmi_8960_phy *phy, int offset)
+{
+ return readl(phy->pll_reg + offset);
+}
+
+struct pll_conf {
+ u32 val;
+ u32 reg;
+};
+
+struct pll_rate {
+ unsigned long rate;
+ size_t num_reg;
+ const struct pll_conf *conf;
+};
+
+static const struct pll_conf pll_conf_154M[] = {
+ { 0x08, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x0d, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x4d, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x5e, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0x42, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+};
+
+static const struct pll_conf pll_conf_148M5[] = {
+ { 0x02, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
+ { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG },
+ { 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG },
+ { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
+ { 0x76, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x01, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+ { 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG3 },
+ { 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 },
+ { 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 },
+ { 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 },
+ { 0xe6, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
+};
+
+static const struct pll_conf pll_conf_108M[] = {
+ { 0x08, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x21, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x1c, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x49, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x49, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+};
+
+static const struct pll_conf pll_conf_74M25[] = {
+ { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
+ { 0x12, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x76, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0xe6, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+};
+
+static const struct pll_conf pll_conf_74M176[] = {
+ { 0x18, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0xe5, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x0c, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x7d, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0xbc, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+};
+
+static const struct pll_conf pll_conf_65M[] = {
+ { 0x18, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x8a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x0b, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x4b, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x7b, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0x09, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+};
+
+static const struct pll_conf pll_conf_27M03[] = {
+ { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
+ { 0x38, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
+ { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0xff, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x4e, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0xd7, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0x03, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+ { 0x2a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
+};
+
+static const struct pll_conf pll_conf_27M[] = {
+ { 0x32, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
+ { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG },
+ { 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG },
+ { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
+ { 0x7b, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x01, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+ { 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG3 },
+ { 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 },
+ { 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 },
+ { 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 },
+ { 0x2a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
+};
+
+static const struct pll_conf pll_conf_25M2[] = {
+ { 0x32, REG_HDMI_8960_PHY_PLL_REFCLK_CFG },
+ { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG },
+ { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 },
+ { 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG },
+ { 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG },
+ { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B },
+ { 0x77, REG_HDMI_8960_PHY_PLL_SDM_CFG0 },
+ { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG1 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG2 },
+ { 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 },
+ { 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 },
+ { 0x20, REG_HDMI_8960_PHY_PLL_SSC_CFG3 },
+ { 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 },
+ { 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 },
+ { 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 },
+ { 0xf4, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 },
+ { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 },
+ { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 },
+ { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 },
+ { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 },
+ { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 },
+};
+
+
+/* NOTE: keep sorted highest freq to lowest: */
+static const struct pll_rate freqtbl[] = {
+ { 154000, ARRAY_SIZE(pll_conf_154M), pll_conf_154M },
+ /* 1080p60/1080p50 case */
+ { 148500, ARRAY_SIZE(pll_conf_148M5), pll_conf_148M5 },
+ { 108000, ARRAY_SIZE(pll_conf_108M), pll_conf_108M },
+ /* 720p60/720p50/1080i60/1080i50/1080p24/1080p30/1080p25 */
+ { 74250, ARRAY_SIZE(pll_conf_74M25), pll_conf_74M25 },
+ { 74176, ARRAY_SIZE(pll_conf_74M176), pll_conf_74M176 },
+ { 65000, ARRAY_SIZE(pll_conf_65M), pll_conf_65M },
+ /* 480p60/480i60 */
+ { 27030, ARRAY_SIZE(pll_conf_27M03), pll_conf_27M03 },
+ /* 576p50/576i50 */
+ { 27000, ARRAY_SIZE(pll_conf_27M), pll_conf_27M },
+ /* 640x480p60 */
+ { 25200, ARRAY_SIZE(pll_conf_25M2), pll_conf_25M2 },
+};
+
+static const struct pll_rate *find_rate(unsigned long rate)
+{
+ int i;
+
+ for (i = 1; i < ARRAY_SIZE(freqtbl); i++)
+ if (rate > freqtbl[i].rate)
+ return &freqtbl[i - 1];
+
+ return &freqtbl[i - 1];
+}
+
+static unsigned long qcom_hdmi_8960_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = hw_clk_to_phy(hw);
+
+ return hdmi_phy->hdmi_opts.pixel_clk_rate * 1000UL;
+}
+
+static long qcom_hdmi_8960_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ const struct pll_rate *pll_rate = find_rate(rate / 1000);
+
+ return pll_rate->rate * 1000UL;
+}
+
+static const struct clk_ops qcom_hdmi_8960_pll_ops = {
+ .recalc_rate = qcom_hdmi_8960_pll_recalc_rate,
+ .round_rate = qcom_hdmi_8960_pll_round_rate,
+};
+
+static int qcom_hdmi_8960_phy_pll_enable(struct qcom_hdmi_8960_phy *phy)
+{
+ int pll_lock_retry = 10;
+ unsigned int val;
+ int ret;
+
+ /* Assert PLL S/W reset */
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x8d);
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0, 0x10);
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1, 0x1a);
+
+ /* Wait for a short time before de-asserting
+ * to allow the hardware to complete its job.
+ * This much of delay should be fine for hardware
+ * to assert and de-assert.
+ */
+ udelay(10);
+
+ /* De-assert PLL S/W reset */
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x0d);
+
+ val = hdmi_phy_read(phy, REG_HDMI_8960_PHY_REG12);
+ val |= HDMI_8960_PHY_REG12_SW_RESET;
+ /* Assert PHY S/W reset */
+ hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val);
+ val &= ~HDMI_8960_PHY_REG12_SW_RESET;
+ /*
+ * Wait for a short time before de-asserting to allow the hardware to
+ * complete its job. This much of delay should be fine for hardware to
+ * assert and de-assert.
+ */
+ udelay(10);
+ /* De-assert PHY S/W reset */
+ hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val);
+ hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG2, 0x3f);
+
+ val = hdmi_phy_read(phy, REG_HDMI_8960_PHY_REG12);
+ val |= HDMI_8960_PHY_REG12_PWRDN_B;
+ hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val);
+ /* Wait 10 us for enabling global power for PHY */
+ mb();
+ udelay(10);
+
+ val = hdmi_pll_read(phy, REG_HDMI_8960_PHY_PLL_PWRDN_B);
+ val |= HDMI_8960_PHY_PLL_PWRDN_B_PLL_PWRDN_B;
+ val &= ~HDMI_8960_PHY_PLL_PWRDN_B_PD_PLL;
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_PWRDN_B, val);
+ hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG2, 0x80);
+
+ while (--pll_lock_retry > 0) {
+ ret = readl_poll_timeout(phy->pll_reg + REG_HDMI_8960_PHY_PLL_STATUS0,
+ val, val & HDMI_8960_PHY_PLL_STATUS0_PLL_LOCK,
+ 1, 1000);
+ if (!ret)
+ break;
+
+ /*
+ * PLL has still not locked.
+ * Do a software reset and try again
+ * Assert PLL S/W reset first
+ */
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x8d);
+ udelay(10);
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x0d);
+
+ /*
+ * Wait for a short duration for the PLL calibration
+ * before checking if the PLL gets locked
+ */
+ udelay(350);
+ }
+
+ return ret;
+}
+
+static int qcom_hdmi_8960_phy_set_rate(struct qcom_hdmi_8960_phy *phy)
+{
+ unsigned int pixclk = phy->hdmi_opts.pixel_clk_rate;
+ const struct pll_rate *pll_rate = find_rate(pixclk);
+ int i;
+
+ dev_dbg(phy->dev, "rate=%u", pixclk);
+
+ for (i = 0; i < pll_rate->num_reg; i++)
+ hdmi_pll_write(phy, pll_rate->conf[i].reg, pll_rate->conf[i].val);
+
+ return 0;
+}
+
+static void qcom_hdmi_8960_phy_pll_disable(struct qcom_hdmi_8960_phy *phy)
+{
+ unsigned int val;
+
+ val = hdmi_phy_read(phy, REG_HDMI_8960_PHY_REG12);
+ val &= ~HDMI_8960_PHY_REG12_PWRDN_B;
+ hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val);
+
+ val = hdmi_pll_read(phy, REG_HDMI_8960_PHY_PLL_PWRDN_B);
+ val |= HDMI_8960_PHY_REG12_SW_RESET;
+ val &= ~HDMI_8960_PHY_REG12_PWRDN_B;
+ hdmi_pll_write(phy, REG_HDMI_8960_PHY_PLL_PWRDN_B, val);
+ /* Make sure HDMI PHY/PLL are powered down */
+ mb();
+}
+
+static int qcom_hdmi_8960_phy_power_on(struct phy *phy)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = phy_get_drvdata(phy);
+ int ret;
+
+ ret = qcom_hdmi_8960_phy_pll_enable(hdmi_phy);
+ if (ret)
+ return ret;
+
+ ret = qcom_hdmi_8960_phy_set_rate(hdmi_phy);
+ if (ret)
+ return ret;
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG2, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG0, 0x1b);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG1, 0xf2);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG4, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG5, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG6, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG7, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG8, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG9, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG10, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG11, 0x00);
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG3, 0x20);
+
+ return 0;
+}
+
+static int qcom_hdmi_8960_phy_power_off(struct phy *phy)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ hdmi_phy_write(hdmi_phy, REG_HDMI_8960_PHY_REG2, 0x7f);
+
+ qcom_hdmi_8960_phy_pll_disable(hdmi_phy);
+
+ return 0;
+}
+
+static int qcom_hdmi_8960_phy_init(struct phy *phy)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ return pm_runtime_resume_and_get(hdmi_phy->dev);
+}
+
+static int qcom_hdmi_8960_phy_exit(struct phy *phy)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ pm_runtime_put_noidle(hdmi_phy->dev);
+
+ return 0;
+}
+
+static int qcom_hdmi_8960_phy_configure(struct phy *phy, union phy_configure_opts *opts)
+{
+ const struct phy_configure_opts_hdmi *hdmi_opts = &opts->hdmi;
+ struct qcom_hdmi_8960_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_8960_runtime_resume(struct device *dev)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = dev_get_drvdata(dev);
+ int ret;
+
+ ret = regulator_enable(hdmi_phy->vdda);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(hdmi_phy->iface_clk);
+ if (ret)
+ goto out_disable_supplies;
+
+ return 0;
+
+out_disable_supplies:
+ regulator_disable(hdmi_phy->vdda);
+
+ return ret;
+}
+
+static int __maybe_unused qcom_hdmi_8960_runtime_suspend(struct device *dev)
+{
+ struct qcom_hdmi_8960_phy *hdmi_phy = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(hdmi_phy->iface_clk);
+ regulator_disable(hdmi_phy->vdda);
+
+ return 0;
+}
+
+static const struct phy_ops qcom_hdmi_8960_phy_ops = {
+ .init = qcom_hdmi_8960_phy_init,
+ .configure = qcom_hdmi_8960_phy_configure,
+ .power_on = qcom_hdmi_8960_phy_power_on,
+ .power_off = qcom_hdmi_8960_phy_power_off,
+ .exit = qcom_hdmi_8960_phy_exit,
+ .owner = THIS_MODULE,
+};
+
+static int qcom_hdmi_8960_probe(struct platform_device *pdev)
+{
+ struct clk_init_data init = {
+ .name = "hdmipll",
+ .ops = &qcom_hdmi_8960_pll_ops,
+ .parent_data = (const struct clk_parent_data[]) {
+ { .fw_name = "pxo", .name = "pxo_board" },
+ },
+ .flags = CLK_GET_RATE_NOCACHE,
+ .num_parents = 1,
+ };
+ struct phy_provider *phy_provider;
+ struct device *dev = &pdev->dev;
+ struct qcom_hdmi_8960_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->iface_clk = devm_clk_get(dev, "slave_iface");
+ if (IS_ERR(hdmi_phy->iface_clk)) {
+ ret = PTR_ERR(hdmi_phy->iface_clk);
+ return ret;
+ }
+
+ hdmi_phy->vdda = devm_regulator_get(dev, "core-vdda");
+ if (IS_ERR(hdmi_phy->vdda)) {
+ ret = PTR_ERR(hdmi_phy->vdda);
+ 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_8960_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_8960_of_match_table[] = {
+ {
+ .compatible = "qcom,hdmi-phy-8960",
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, qcom_hdmi_8960_of_match_table);
+
+DEFINE_RUNTIME_DEV_PM_OPS(qcom_hdmi_8960_pm_ops,
+ qcom_hdmi_8960_runtime_suspend,
+ qcom_hdmi_8960_runtime_resume,
+ NULL);
+
+static struct platform_driver qcom_hdmi_8960_driver = {
+ .probe = qcom_hdmi_8960_probe,
+ .driver = {
+ .name = "qcom-8960-hdmi-phy",
+ .of_match_table = qcom_hdmi_8960_of_match_table,
+ .pm = &qcom_hdmi_8960_pm_ops,
+ },
+};
+
+module_platform_driver(qcom_hdmi_8960_driver);
+
+MODULE_AUTHOR("Dmitry Baryshkov <dmitry.baryshkov at linaro.org>");
+MODULE_DESCRIPTION("Qualcomm MSM8960 HDMI PHY driver");
+MODULE_LICENSE("GPL");
--
2.39.2
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