diff options
author | Linaro CI <ci_notify@linaro.org> | 2019-05-30 05:56:40 +0000 |
---|---|---|
committer | Linaro CI <ci_notify@linaro.org> | 2019-05-30 05:56:40 +0000 |
commit | ac379395e8fc9b081a4b7c76479676fd154f3e47 (patch) | |
tree | b639edd687a2a418047f1b0b9deebf1313a10a03 | |
parent | 41718fb7d2a4040a4f9026a0de156ecf29a32066 (diff) | |
parent | ae3b48b0aba2e5b8494dfe569ae18f672c5cbef9 (diff) |
Merge remote-tracking branch 'sdm845-db845c/tracking-qcomlt-sdm845-db845c' into integration-linux-qcomlt
-rw-r--r-- | arch/arm64/boot/dts/qcom/Makefile | 1 | ||||
-rw-r--r-- | arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 761 | ||||
-rw-r--r-- | arch/arm64/configs/defconfig | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/bridge/Kconfig | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/bridge/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/bridge/lt9611.c | 1239 |
6 files changed, 2012 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile index 21d548f02d39..b3fe72ff2955 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_QCOM) += msm8992-bullhead-rev-101.dtb dtb-$(CONFIG_ARCH_QCOM) += msm8994-angler-rev-101.dtb dtb-$(CONFIG_ARCH_QCOM) += msm8996-mtp.dtb dtb-$(CONFIG_ARCH_QCOM) += msm8998-mtp.dtb +dtb-$(CONFIG_ARCH_QCOM) += sdm845-db845c.dtb dtb-$(CONFIG_ARCH_QCOM) += sdm845-mtp.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-1000.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-4000.dtb diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts new file mode 100644 index 000000000000..bea2247a221e --- /dev/null +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts @@ -0,0 +1,761 @@ +// SPDX-License-Identifier: GPL-2.0 + +/dts-v1/; + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h> +#include <dt-bindings/regulator/qcom,rpmh-regulator.h> +#include <dt-bindings/sound/qcom,q6afe.h> +#include <dt-bindings/sound/qcom,q6asm.h> +#include "sdm845.dtsi" +#include "pm8998.dtsi" +#include "pmi8998.dtsi" + +/ { + model = "Thundercomm Dragonboard 845c"; + compatible = "thundercomm,db845c", "qcom,sdm845"; + + aliases { + serial0 = &uart9; + hsuart0 = &uart6; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + dc12v: dc12v-regulator { + compatible = "regulator-fixed"; + regulator-name = "DC12V"; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; + regulator-always-on; + }; + + hdmi-out { + compatible = "hdmi-connector"; + type = "a"; + + port { + hdmi_con: endpoint { + remote-endpoint = <<9611_out>; + }; + }; + }; + + lt9611_1v8: lt9611-vdd18-regulator { + compatible = "regulator-fixed"; + regulator-name = "LT9611_1V8"; + + vin-supply = <&vdc_5v>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + + gpio = <&tlmm 89 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + lt9611_3v3: lt9611-3v3 { + compatible = "regulator-fixed"; + regulator-name = "LT9611_3V3"; + + vin-supply = <&vdc_3v3>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + // TODO: make it possible to drive same GPIO from two clients + // gpio = <&tlmm 89 GPIO_ACTIVE_HIGH>; + // enable-active-high; + }; + + pcie0_1p05v: pcie-0-1p05v-regulator { + compatible = "regulator-fixed"; + regulator-name = "PCIE0_1.05V"; + + vin-supply = <&vbat>; + regulator-min-microvolt = <1050000>; + regulator-max-microvolt = <1050000>; + + // TODO: make it possible to drive same GPIO from two clients + // gpio = <&tlmm 90 GPIO_ACTIVE_HIGH>; + // enable-active-high; + }; + + pcie0_3p3v_dual: vldo-3v3-regulator { + compatible = "regulator-fixed"; + regulator-name = "VLDO_3V3"; + + vin-supply = <&vbat>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + gpio = <&tlmm 90 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + autorepeat; + + pinctrl-names = "default"; + pinctrl-0 = <&vol_up_pin_a>; + + vol-up { + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + gpios = <&pm8998_gpio 6 GPIO_ACTIVE_LOW>; + }; + }; + + leds { + compatible = "gpio-leds"; + + user4 { + label = "db845c:green:user4"; + gpios = <&pm8998_gpio 13 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + default-state = "off"; + }; + + wlan { + label = "db845c:yellow:wlan"; + gpios = <&pm8998_gpio 9 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "phy0tx"; + default-state = "off"; + }; + + bt { + label = "db845c:blue:bt"; + gpios = <&pm8998_gpio 5 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "bluetooth-power"; + default-state = "off"; + }; + }; + + v5p0_hdmiout: v5p0-hdmiout-regulator { + compatible = "regulator-fixed"; + regulator-name = "V5P0_HDMIOUT"; + + vin-supply = <&vdc_5v>; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <500000>; + + // TODO: make it possible to drive same GPIO from two clients + // gpio = <&tlmm 89 GPIO_ACTIVE_HIGH>; + // enable-active-high; + }; + + vbat: vbat-regulator { + compatible = "regulator-fixed"; + regulator-name = "VBAT"; + + vin-supply = <&dc12v>; + regulator-min-microvolt = <4200000>; + regulator-max-microvolt = <4200000>; + regulator-always-on; + }; + + vbat_som: vbat-som-regulator { + compatible = "regulator-fixed"; + regulator-name = "VBAT_SOM"; + + vin-supply = <&dc12v>; + regulator-min-microvolt = <4200000>; + regulator-max-microvolt = <4200000>; + regulator-always-on; + }; + + vdc_3v3: vdc-3v3-regulator { + compatible = "regulator-fixed"; + regulator-name = "VDC_3V3"; + vin-supply = <&dc12v>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vdc_5v: vdc-5v-regulator { + compatible = "regulator-fixed"; + regulator-name = "VDC_5V"; + + vin-supply = <&dc12v>; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <500000>; + regulator-always-on; + }; + + vreg_s4a_1p8: vreg-s4a-1p8 { + compatible = "regulator-fixed"; + regulator-name = "vreg_s4a_1p8"; + + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + vph_pwr: vph-pwr-regulator { + compatible = "regulator-fixed"; + regulator-name = "vph_pwr"; + + vin-supply = <&vbat_som>; + }; +}; + +&apps_rsc { + pm8998-rpmh-regulators { + compatible = "qcom,pm8998-rpmh-regulators"; + qcom,pmic-id = "a"; + vdd-s1-supply = <&vph_pwr>; + vdd-s2-supply = <&vph_pwr>; + vdd-s3-supply = <&vph_pwr>; + vdd-s4-supply = <&vph_pwr>; + vdd-s5-supply = <&vph_pwr>; + vdd-s6-supply = <&vph_pwr>; + vdd-s7-supply = <&vph_pwr>; + vdd-s8-supply = <&vph_pwr>; + vdd-s9-supply = <&vph_pwr>; + vdd-s10-supply = <&vph_pwr>; + vdd-s11-supply = <&vph_pwr>; + vdd-s12-supply = <&vph_pwr>; + vdd-s13-supply = <&vph_pwr>; + vdd-l1-l27-supply = <&vreg_s7a_1p025>; + vdd-l2-l8-l17-supply = <&vreg_s3a_1p35>; + vdd-l3-l11-supply = <&vreg_s7a_1p025>; + vdd-l4-l5-supply = <&vreg_s7a_1p025>; + vdd-l6-supply = <&vph_pwr>; + vdd-l7-l12-l14-l15-supply = <&vreg_s5a_2p04>; + vdd-l9-supply = <&vreg_bob>; + vdd-l10-l23-l25-supply = <&vreg_bob>; + vdd-l13-l19-l21-supply = <&vreg_bob>; + vdd-l16-l28-supply = <&vreg_bob>; + vdd-l18-l22-supply = <&vreg_bob>; + vdd-l20-l24-supply = <&vreg_bob>; + vdd-l26-supply = <&vreg_s3a_1p35>; + vin-lvs-1-2-supply = <&vreg_s4a_1p8>; + + vreg_s3a_1p35: smps3 { + regulator-min-microvolt = <1352000>; + regulator-max-microvolt = <1352000>; + }; + + vreg_s5a_2p04: smps5 { + regulator-min-microvolt = <1904000>; + regulator-max-microvolt = <2040000>; + }; + + vreg_s7a_1p025: smps7 { + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1028000>; + }; + + vreg_l1a_0p875: ldo1 { + regulator-min-microvolt = <880000>; + regulator-max-microvolt = <880000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l12a_1p8: ldo12 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l7a_1p8: ldo7 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l13a_2p95: ldo13 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2960000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l17a_1p3: ldo17 { + regulator-min-microvolt = <1304000>; + regulator-max-microvolt = <1304000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l20a_2p95: ldo20 { + regulator-min-microvolt = <2960000>; + regulator-max-microvolt = <2968000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l21a_2p95: ldo21 { + regulator-min-microvolt = <2960000>; + regulator-max-microvolt = <2968000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l24a_3p075: ldo24 { + regulator-min-microvolt = <3088000>; + regulator-max-microvolt = <3088000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l25a_3p3: ldo25 { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3312000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + + vreg_l26a_1p2: ldo26 { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + }; + }; + + pmi8998-rpmh-regulators { + compatible = "qcom,pmi8998-rpmh-regulators"; + qcom,pmic-id = "b"; + + vdd-bob-supply = <&vph_pwr>; + + vreg_bob: bob { + regulator-min-microvolt = <3312000>; + regulator-max-microvolt = <3600000>; + regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>; + regulator-allow-bypass; + }; + }; +}; + +&cdsp_pas { + status = "okay"; + firmware-name = "qcom/db845c/cdsp.mdt"; +}; + +&dsi0 { + status = "okay"; + vdda-supply = <&vreg_l26a_1p2>; + +#if 0 + qcom,dual-dsi-mode; + qcom,master-dsi; +#endif + + ports { + port@1 { + endpoint { + remote-endpoint = <<9611_a>; + data-lanes = <0 1 2 3>; + }; + }; + }; +}; + +&dsi0_phy { + status = "okay"; + vdds-supply = <&vreg_l1a_0p875>; +}; + +#if 0 +&dsi1 { + status = "okay"; + vdda-supply = <&vreg_l26a_1p2>; + + qcom,dual-dsi-mode; + + ports { + port@1 { + endpoint { + remote-endpoint = <<9611_b>; + data-lanes = <0 1 2 3>; + }; + }; + }; +}; + +&dsi1_phy { + status = "okay"; + vdds-supply = <&vreg_l1a_0p875>; +}; +#endif + +&gcc { + protected-clocks = <GCC_QSPI_CORE_CLK>, + <GCC_QSPI_CORE_CLK_SRC>, + <GCC_QSPI_CNOC_PERIPH_AHB_CLK>; +}; + +&adsp_pas { + status = "okay"; +}; + +/* QUAT I2S Uses 4 I2S SD Lines for audio on LT9611 HDMI Bridge */ +&q6afedai { + qi2s@22 { + reg = <22>; + qcom,sd-lines = <0 1 2 3>; + }; +}; + +&sound { + compatible = "qcom,db845c-sndcard"; + pinctrl-0 = <&quat_mi2s_active &quat_mi2s_sd0_active &quat_mi2s_sd1_active &quat_mi2s_sd2_active &quat_mi2s_sd3_active>; + pinctrl-names = "default"; + model = "DB845c"; + + mm1-dai-link { + link-name = "MultiMedia1"; + cpu { + sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>; + }; + }; + + hdmi-dai-link { + link-name = "HDMI"; + cpu { + sound-dai = <&q6afedai QUATERNARY_MI2S_RX>; + }; + + platform { + sound-dai = <&q6routing>; + }; + + codec { + sound-dai = <<9611_codec 0>; + }; + }; +}; + +&i2c10 { + status = "okay"; + clock-frequency = <400000>; + + lt9611_codec: hdmi-bridge@3b { + compatible = "lt,lt9611"; + reg = <0x3b>; + #sound-dai-cells = <1>; + + interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>; + + reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>; + + vdd-supply = <<9611_1v8>; + vcc-supply = <<9611_3v3>; + + pinctrl-names = "default"; + pinctrl-0 = <<9611_irq_pin>, <&dsi_sw_sel>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + lt9611_out: endpoint { + remote-endpoint = <&hdmi_con>; + }; + }; + + port@1 { + reg = <1>; + + lt9611_a: endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + +#if 0 + port@2 { + reg = <2>; + + lt9611_b: endpoint { + remote-endpoint = <&dsi1_out>; + }; + }; +#endif + }; + }; +}; + +&mdss { + status = "okay"; +}; + +&mdss_mdp { + status = "okay"; +}; + +&pcie0 { + status = "okay"; + perst-gpio = <&tlmm 35 GPIO_ACTIVE_LOW>; + enable-gpio = <&tlmm 134 GPIO_ACTIVE_HIGH>; + + vddpe-3v3-supply = <&pcie0_3p3v_dual>; + + pinctrl-names = "default"; + pinctrl-0 = <&pcie0_perst_state>, <&pcie0_clkreq_state>, <&pcie0_wake_state>; + + vddpe-3v3-supply = <&pcie0_3p3v_dual>; +}; + +&pcie0_phy { + status = "okay"; + + vdda-phy-supply = <&vreg_l1a_0p875>; + vdda-pll-supply = <&vreg_l26a_1p2>; +}; + +&pm8998_gpio { + vol_up_pin_a: vol-up-active { + pins = "gpio6"; + function = "normal"; + input-enable; + bias-pull-up; + qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>; + }; +}; + +&pm8998_pon { + resin { + compatible = "qcom,pm8941-resin"; + interrupts = <0x0 0x8 1 IRQ_TYPE_EDGE_BOTH>; + debounce = <15625>; + bias-pull-up; + linux,code = <KEY_VOLUMEDOWN>; + }; +}; + +&qupv3_id_0 { + status = "okay"; +}; + +&qupv3_id_1 { + status = "okay"; +}; + +&sdhc_2 { + status = "okay"; + + pinctrl-names = "default"; + pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data &sd_card_det_n>; + + vmmc-supply = <&vreg_l21a_2p95>; + vqmmc-supply = <&vreg_l13a_2p95>; + + bus-width = <4>; + cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>; +}; + +&tlmm { + lt9611_irq_pin: lt9611-irq { + pins = "gpio84"; + function = "gpio"; + bias-disable; + }; + + pcie0_pwren_state: pcie0-pwren { + pins = "gpio90"; + function = "gpio"; + + drive-strength = <2>; + bias-disable; + }; + + pcie0_perst_state: pcie0-reset { + pins = "gpio35"; + function = "gpio"; + + drive-strength = <2>; + output-low; + bias-pull-down; + }; + + pcie0_clkreq_state: pcie0-clkreq { + pins = "gpio36"; + function = "pci_e0"; + bias-pull-up; + }; + + pcie0_wake_state: pcie0-wake { + pins = "gpio37"; + function = "gpio"; + + drive-strength = <2>; + bias-pull-up; + }; + + sdc2_clk: sdc2-clk { + pins = "sdc2_clk"; + bias-disable; + + /* + * It seems that mmc_test reports errors if drive + * strength is not 16 on clk, cmd, and data pins. + */ + drive-strength = <16>; + }; + + sdc2_cmd: sdc2-cmd { + pins = "sdc2_cmd"; + bias-pull-up; + drive-strength = <10>; + }; + + sdc2_data: sdc2-data { + pins = "sdc2_data"; + bias-pull-up; + drive-strength = <10>; + }; + + sd_card_det_n: sd-card-det-n { + pins = "gpio126"; + function = "gpio"; + bias-pull-up; + }; + + dsi_sw_sel: dsi-sw-sel { + pins = "gpio120"; + function = "gpio"; + + drive-strength = <2>; + bias-disable; + output-high; + }; +}; + +&uart6 { + status = "okay"; + + bluetooth { + compatible = "qcom,wcn3990-bt"; + + vddio-supply = <&vreg_s4a_1p8>; + vddxo-supply = <&vreg_l7a_1p8>; + vddrf-supply = <&vreg_l17a_1p3>; + vddch0-supply = <&vreg_l25a_3p3>; + max-speed = <3200000>; + }; +}; + +&uart9 { + status = "okay"; +}; + +&usb_1 { + status = "okay"; +}; + +&usb_1_dwc3 { + dr_mode = "peripheral"; +}; + +&usb_1_hsphy { + status = "okay"; + + vdd-supply = <&vreg_l1a_0p875>; + vdda-pll-supply = <&vreg_l12a_1p8>; + vdda-phy-dpdm-supply = <&vreg_l24a_3p075>; + + qcom,imp-res-offset-value = <8>; + qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_21_6_MA>; + qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_5_PERCENT>; + qcom,preemphasis-width = <QUSB2_V2_PREEMPHASIS_WIDTH_HALF_BIT>; +}; + +&usb_1_qmpphy { + status = "okay"; + + vdda-phy-supply = <&vreg_l26a_1p2>; + vdda-pll-supply = <&vreg_l1a_0p875>; +}; + +&usb_2 { + status = "okay"; +}; + +&usb_2_dwc3 { + dr_mode = "host"; +}; + +&usb_2_hsphy { + status = "okay"; + + vdd-supply = <&vreg_l1a_0p875>; + vdda-pll-supply = <&vreg_l12a_1p8>; + vdda-phy-dpdm-supply = <&vreg_l24a_3p075>; + + qcom,imp-res-offset-value = <8>; + qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_22_8_MA>; +}; + +&usb_2_qmpphy { + status = "okay"; + + vdda-phy-supply = <&vreg_l26a_1p2>; + vdda-pll-supply = <&vreg_l1a_0p875>; +}; + +&ufs_mem_hc { + status = "okay"; + + vcc-supply = <&vreg_l20a_2p95>; + vcc-max-microamp = <800000>; +}; + +&ufs_mem_phy { + status = "okay"; + + vdda-phy-supply = <&vreg_l1a_0p875>; + vdda-pll-supply = <&vreg_l26a_1p2>; +}; + +&wifi { + status = "okay"; +}; + +/* PINCTRL - additions to nodes defined in sdm845.dtsi */ + +&qup_i2c10_default { + pinconf { + pins = "gpio55", "gpio56"; + drive-strength = <2>; + bias-disable; + }; +}; + +&qup_uart6_default { + pinmux { + pins = "gpio45", "gpio46", "gpio47", "gpio48"; + function = "qup6"; + }; + + cts { + pins = "gpio45"; + bias-disable; + }; + + rts-tx { + pins = "gpio46", "gpio47"; + drive-strength = <2>; + bias-disable; + }; + + rx { + pins = "gpio48"; + bias-pull-up; + }; +}; + +&qup_uart9_default { + pinconf-tx { + pins = "gpio4"; + drive-strength = <2>; + bias-disable; + }; + + pinconf-rx { + pins = "gpio5"; + drive-strength = <2>; + bias-pull-up; + }; +}; diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 68c6d692374f..bb7e4097d00a 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -518,6 +518,7 @@ CONFIG_DRM_SUN8I_MIXER=m CONFIG_DRM_MSM=m CONFIG_DRM_TEGRA=m CONFIG_DRM_PANEL_SIMPLE=m +CONFIG_DRM_LONTIUM_LT9611=m CONFIG_DRM_SII902X=m CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA=m CONFIG_DRM_I2C_ADV7511=m diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index ee777469293a..c4b1b3c87885 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -45,6 +45,15 @@ config DRM_DUMB_VGA_DAC Support for non-programmable RGB to VGA DAC bridges, such as ADI ADV7123, TI THS8134 and THS8135 or passive resistor ladder DACs. +config DRM_LONTIUM_LT9611 + tristate "Lontium LT9611 DSI/HDMI bridge" + select SND_SOC_HDMI_CODEC if SND_SOC + depends on OF + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + help + Lontium LT9611 DSI/HDMI bridge chip driver. + config DRM_LVDS_ENCODER tristate "Transparent parallel to LVDS encoder support" depends on OF diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile index 4934fcf5a6f8..8b1d176da6a2 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_DRM_ANALOGIX_ANX78XX) += analogix-anx78xx.o obj-$(CONFIG_DRM_CDNS_DSI) += cdns-dsi.o obj-$(CONFIG_DRM_DUMB_VGA_DAC) += dumb-vga-dac.o +obj-$(CONFIG_DRM_LONTIUM_LT9611) += lt9611.o obj-$(CONFIG_DRM_LVDS_ENCODER) += lvds-encoder.o obj-$(CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW) += megachips-stdpxxxx-ge-b850v3-fw.o obj-$(CONFIG_DRM_NXP_PTN3460) += nxp-ptn3460.o diff --git a/drivers/gpu/drm/bridge/lt9611.c b/drivers/gpu/drm/bridge/lt9611.c new file mode 100644 index 000000000000..748ff21fcd17 --- /dev/null +++ b/drivers/gpu/drm/bridge/lt9611.c @@ -0,0 +1,1239 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2019. Linaro Ltd + */ + +#define DEBUG + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/fs.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/gpio/consumer.h> +#include <linux/regmap.h> +#include <linux/interrupt.h> +#include <linux/component.h> +#include <sound/hdmi-codec.h> +#include <sound/core.h> +#include <sound/hdmi-codec.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <linux/of_gpio.h> +#include <linux/of_graph.h> +#include <linux/of_irq.h> +#include <linux/regulator/consumer.h> +#include <drm/drm_probe_helper.h> +#include <linux/hdmi.h> +#include <drm/drmP.h> +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_edid.h> +#include <drm/drm_mipi_dsi.h> + +#define EDID_SEG_SIZE 256 + +#define LT9611_4LANES 0 + +struct lt9611 { + struct device *dev; + struct drm_bridge bridge; + struct drm_connector connector; + + struct regmap *regmap; + + struct device_node *dsi0_node; + struct device_node *dsi1_node; + struct mipi_dsi_device *dsi0; + struct mipi_dsi_device *dsi1; + struct platform_device *audio_pdev; + + bool ac_mode; + + struct gpio_desc *reset_gpio; + struct gpio_desc *enable_gpio; + + bool power_on; + + struct regulator_bulk_data supplies[2]; + + struct i2c_client *client; + + enum drm_connector_status status; + + u8 edid_buf[EDID_SEG_SIZE]; + u32 vic; +}; + +static const struct regmap_config lt9611_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .cache_type = REGCACHE_NONE, +}; + +struct lt9611_mode { + u16 hdisplay; + u16 vdisplay; + u8 fps; + u8 lanes; + u8 intfs; +}; + +static struct lt9611_mode lt9611_modes[] = { + { 3840, 2160, 30, 4, 2 }, /* 3840x2160 24bit 30Hz 4Lane 2ports */ + { 1920, 1080, 60, 4, 1 }, /* 1080P 24bit 60Hz 4lane 1port */ + { 1920, 1080, 30, 3, 1 }, /* 1080P 24bit 30Hz 3lane 1port */ + { 1920, 1080, 24, 3, 1 }, + { 720, 480, 60, 4, 1 }, + { 720, 576, 50, 2, 1 }, + { 640, 480, 60, 2, 1 }, +}; + +static struct lt9611 *bridge_to_lt9611(struct drm_bridge *bridge) +{ + return container_of(bridge, struct lt9611, bridge); +} + +static struct lt9611 *connector_to_lt9611(struct drm_connector *connector) +{ + return container_of(connector, struct lt9611, connector); +} + +static int lt9611_mipi_input_analog(struct lt9611 *lt9611) +{ + struct reg_sequence reg_cfg[] = { + { 0xff, 0x81 }, + { 0x06, 0x40 }, /*port A rx current*/ + { 0x0a, 0xfe }, /*port A ldo voltage set*/ + { 0x0b, 0xbf }, /*enable port A lprx*/ + { 0x11, 0x40 }, /*port B rx current*/ + { 0x15, 0xfe }, /*port B ldo voltage set*/ + { 0x16, 0xbf }, /*enable port B lprx*/ + + { 0x1c, 0x03 }, /*PortA clk lane no-LP mode*/ + { 0x20, 0x03 }, /*PortB clk lane with-LP mode*/ + }; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + return 0; +} + +static int lt9611_mipi_input_digital(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + struct reg_sequence reg_cfg[] = { + { 0xff, 0x82 }, + { 0x4f, 0x80 }, + { 0x50, 0x10 }, + { 0xff, 0x83 }, + + { 0x02, 0x0a }, + { 0x06, 0x0a }, + }; + + regmap_write(lt9611->regmap, 0xff, 0x83); + regmap_write(lt9611->regmap, 0x00, LT9611_4LANES); + + if (mode->hdisplay == 3840) + regmap_write(lt9611->regmap, 0x0a, 0x03); + else + regmap_write(lt9611->regmap, 0x0a, 0x00); + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + return 0; +} + +static void lt9611_mipi_video_setup(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + u32 h_total, h_act, hpw, hfp, hss; + u32 v_total, v_act, vpw, vfp, vss; + + h_total = mode->htotal; + v_total = mode->vtotal; + + h_act = mode->hdisplay; + hpw = mode->hsync_end - mode->hsync_start; + hfp = mode->hsync_start - mode->hdisplay; + hss = (mode->hsync_end - mode->hsync_start) + (mode->htotal - mode->hsync_end); + + v_act = mode->vdisplay; + vpw = mode->vsync_end - mode->vsync_start; + vfp = mode->vsync_start - mode->vdisplay; + vss = (mode->vsync_end - mode->vsync_start) + (mode->vtotal - mode->vsync_end); + + regmap_write(lt9611->regmap, 0xff, 0x83); + + regmap_write(lt9611->regmap, 0x0d, (u8)(v_total / 256)); + regmap_write(lt9611->regmap, 0x0e, (u8)(v_total % 256)); + + regmap_write(lt9611->regmap, 0x0f, (u8)(v_act / 256)); + regmap_write(lt9611->regmap, 0x10, (u8)(v_act % 256)); + + regmap_write(lt9611->regmap, 0x11, (u8)(h_total / 256)); + regmap_write(lt9611->regmap, 0x12, (u8)(h_total % 256)); + + regmap_write(lt9611->regmap, 0x13, (u8)(h_act / 256)); + regmap_write(lt9611->regmap, 0x14, (u8)(h_act % 256)); + + regmap_write(lt9611->regmap, 0x15, (u8)(vpw % 256)); + regmap_write(lt9611->regmap, 0x16, (u8)(hpw % 256)); + + regmap_write(lt9611->regmap, 0x17, (u8)(vfp % 256)); + + regmap_write(lt9611->regmap, 0x18, (u8)(vss % 256)); + + regmap_write(lt9611->regmap, 0x19, (u8)(hfp % 256)); + + regmap_write(lt9611->regmap, 0x1a, (u8)(hss / 256)); + regmap_write(lt9611->regmap, 0x1b, (u8)(hss % 256)); +} + +static int lt9611_pcr_setup(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + struct reg_sequence reg_cfg[] = { + { 0xff, 0x83 }, + { 0x0b, 0x01 }, + { 0x0c, 0x10 }, + { 0x48, 0x00 }, + { 0x49, 0x81 }, + + /* stage 1 */ + { 0x21, 0x4a }, + { 0x24, 0x71 }, + { 0x25, 0x30 }, + { 0x2a, 0x01 }, + + /* stage 2 */ + { 0x4a, 0x40 }, + { 0x1d, 0x10 }, + + /* MK limit */ + { 0x2d, 0x38 }, + { 0x31, 0x08 }, + }; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + switch (mode->hdisplay) { + case 640: + regmap_write(lt9611->regmap, 0x26, 0x14); + break; + case 1920: + regmap_write(lt9611->regmap, 0x26, 0x37); + break; + case 3840: + regmap_write(lt9611->regmap, 0x0b, 0x03); + regmap_write(lt9611->regmap, 0x0c, 0xd0); + regmap_write(lt9611->regmap, 0x48, 0x03); + regmap_write(lt9611->regmap, 0x49, 0xe0); + regmap_write(lt9611->regmap, 0x24, 0x72); + regmap_write(lt9611->regmap, 0x25, 0x00); + regmap_write(lt9611->regmap, 0x2a, 0x01); + regmap_write(lt9611->regmap, 0x4a, 0x10); + regmap_write(lt9611->regmap, 0x1d, 0x10); + regmap_write(lt9611->regmap, 0x26, 0x37); + break; + } + + /* pcr rst */ + regmap_write(lt9611->regmap, 0xff, 0x80); + regmap_write(lt9611->regmap, 0x11, 0x5a); + regmap_write(lt9611->regmap, 0x11, 0xfa); + + return 0; +} + +static int lt9611_pll_setup(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + unsigned int pclk = mode->clock; + struct reg_sequence reg_cfg[] = { + /* txpll init */ + { 0xff, 0x81 }, + { 0x23, 0x40 }, + { 0x24, 0x64 }, + { 0x25, 0x80 }, + { 0x26, 0x55 }, + { 0x2c, 0x37 }, + { 0x2f, 0x01 }, + { 0x26, 0x55 }, + { 0x27, 0x66 }, + { 0x28, 0x88 }, + }; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + if (pclk > 150000) + regmap_write(lt9611->regmap, 0x2d, 0x88); + else if (pclk > 70000) + regmap_write(lt9611->regmap, 0x2d, 0x99); + else + regmap_write(lt9611->regmap, 0x2d, 0xaa); + + regmap_write(lt9611->regmap, 0xff, 0x82); + regmap_write(lt9611->regmap, 0xe3, pclk >> 17); /* pclk[19:16] */ + regmap_write(lt9611->regmap, 0xe4, pclk >> 9); /* pclk[15:8] */ + regmap_write(lt9611->regmap, 0xe5, pclk >> 1); /* pclk[7:0] */ + + regmap_write(lt9611->regmap, 0xde, 0x20); + regmap_write(lt9611->regmap, 0xde, 0xe0); + + regmap_write(lt9611->regmap, 0xff, 0x80); + regmap_write(lt9611->regmap, 0x16, 0xf1); + regmap_write(lt9611->regmap, 0x16, 0xf3); + + return 0; +} + +static int lt9611_video_check(struct lt9611 *lt9611) +{ + u32 v_total, v_act, h_act_a, h_act_b, h_total_sysclk; + unsigned int temp; + int ret; + + /* top module video check */ + regmap_write(lt9611->regmap, 0xff, 0x82); + + /* v_act */ + ret = regmap_read(lt9611->regmap, 0x82, &temp); + if (ret) + goto end; + + v_act = temp << 8; + ret = regmap_read(lt9611->regmap, 0x83, &temp); + if (ret) + goto end; + v_act = v_act + temp; + + /* v_total */ + ret = regmap_read(lt9611->regmap, 0x6c, &temp); + if (ret) + goto end; + v_total = temp << 8; + ret = regmap_read(lt9611->regmap, 0x6d, &temp); + if (ret) + goto end; + v_total = v_total + temp; + + /* h_total_sysclk */ + ret = regmap_read(lt9611->regmap, 0x86, &temp); + if (ret) + goto end; + h_total_sysclk = temp << 8; + ret = regmap_read(lt9611->regmap, 0x87, &temp); + if (ret) + goto end; + h_total_sysclk = h_total_sysclk + temp; + + /* h_act_a */ + regmap_write(lt9611->regmap, 0xff, 0x83); + ret = regmap_read(lt9611->regmap, 0x82, &temp); + if (ret) + goto end; + h_act_a = temp << 8; + ret = regmap_read(lt9611->regmap, 0x83, &temp); + if (ret) + goto end; + h_act_a = (h_act_a + temp)/3; + + /* h_act_b */ + regmap_write(lt9611->regmap, 0xff, 0x83); + ret = regmap_read(lt9611->regmap, 0x86, &temp); + if (ret) + goto end; + h_act_b = temp << 8; + ret = regmap_read(lt9611->regmap, 0x87, &temp); + if (ret) + goto end; + h_act_b = (h_act_b + temp)/3; + + dev_info(lt9611->dev, "video check: h_act_a=%d, h_act_b=%d, v_act=%d, v_total=%d, h_total_sysclk=%d\n", + h_act_a, h_act_b, v_act, v_total, h_total_sysclk); + + return 0; + +end: + dev_err(lt9611->dev, "read video check error\n"); + return ret; +} + +static void lt9611_hdmi_tx_digital(struct lt9611 *lt9611) +{ + regmap_write(lt9611->regmap, 0xff, 0x84); + regmap_write(lt9611->regmap, 0x43, 0x46 - lt9611->vic); + regmap_write(lt9611->regmap, 0x44, 0x84); + regmap_write(lt9611->regmap, 0x47, lt9611->vic); + + regmap_write(lt9611->regmap, 0xff, 0x82); + regmap_write(lt9611->regmap, 0xd6, 0x8c); + regmap_write(lt9611->regmap, 0xd7, 0x04); +} + +static void lt9611_hdmi_tx_phy(struct lt9611 *lt9611) +{ + struct reg_sequence reg_cfg[] = { + { 0xff, 0x81 }, + { 0x30, 0x6a }, + { 0x31, 0x44 }, /* HDMI DC mode */ + { 0x32, 0x4a }, + { 0x33, 0x0b }, + { 0x34, 0x00 }, + { 0x35, 0x00 }, + { 0x36, 0x00 }, + { 0x37, 0x44 }, + { 0x3f, 0x0f }, + { 0x40, 0xa0 }, + { 0x41, 0xa0 }, + { 0x42, 0xa0 }, + { 0x43, 0xa0 }, + { 0x44, 0x0a }, + }; + + /* HDMI AC mode */ + if (lt9611->ac_mode) + reg_cfg[2].def = 0x73; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); +} + +static irqreturn_t lt9611_irq_thread_handler(int irq, void *dev_id) +{ + struct lt9611 *lt9611 = dev_id; + unsigned int irq_flag0 = 0; + unsigned int irq_flag3 = 0; + + regmap_write(lt9611->regmap, 0xff, 0x82); + regmap_read(lt9611->regmap, 0x0f, &irq_flag3); + regmap_read(lt9611->regmap, 0x0c, &irq_flag0); + + printk(KERN_ERR "%s() irq_flag0: %#x irq_flag3: %#x\n", __func__, irq_flag0, irq_flag3); + + /* hpd changed low */ + if (irq_flag3 & 0x80) { + dev_info(lt9611->dev, "hdmi cable disconnected\n"); + + regmap_write(lt9611->regmap, 0xff, 0x82); /* irq 3 clear flag */ + regmap_write(lt9611->regmap, 0x07, 0xbf); + regmap_write(lt9611->regmap, 0x07, 0x3f); + } + /* hpd changed high */ + if (irq_flag3 & 0x40) { + dev_info(lt9611->dev, "hdmi cable connected\n"); + + regmap_write(lt9611->regmap, 0xff, 0x82); /* irq 3 clear flag */ + regmap_write(lt9611->regmap, 0x07, 0x7f); + regmap_write(lt9611->regmap, 0x07, 0x3f); + } + +// if (irq_flag3 & 0xc0) +// drm_kms_helper_hotplug_event(lt9611->bridge.dev); + + /* video input changed */ + if (irq_flag0 & 0x01) { + dev_info(lt9611->dev, "video input changed\n"); + regmap_write(lt9611->regmap, 0xff, 0x82); /* irq 0 clear flag */ + regmap_write(lt9611->regmap, 0x9e, 0xff); + regmap_write(lt9611->regmap, 0x9e, 0xf7); + regmap_write(lt9611->regmap, 0x04, 0xff); + regmap_write(lt9611->regmap, 0x04, 0xfe); + } + + return IRQ_HANDLED; +} + +static void lt9611_enable_hpd_interrupts(struct lt9611 *lt9611) +{ + unsigned int val; + + dev_dbg(lt9611->dev, "enabling hpd interrupts\n"); + + regmap_write(lt9611->regmap, 0xff, 0x82); + regmap_read(lt9611->regmap, 0x03, &val); + + val &= ~0xc0; + regmap_write(lt9611->regmap, 0x03, val); + regmap_write(lt9611->regmap, 0x07, 0xff); //clear + regmap_write(lt9611->regmap, 0x07, 0x3f); +} + +static void lt9611_sleep_setup(struct lt9611 *lt9611) +{ + struct reg_sequence sleep_setup[] = { + { 0xff, 0x80 }, //register I2C addr + { 0x24, 0x76 }, + { 0x23, 0x01 }, + { 0xff, 0x81 }, //set addr pin as output + { 0x57, 0x03 }, + { 0x49, 0x0b }, + { 0xff, 0x81 }, //anlog power down + { 0x51, 0x30 }, //disable IRQ + { 0x02, 0x48 }, //MIPI Rx power down + { 0x23, 0x80 }, + { 0x30, 0x00 }, + { 0x00, 0x01 }, //bandgap power down + { 0x01, 0x00 }, //system clk power down + }; + + dev_err(lt9611->dev, "sleep\n"); + + regmap_multi_reg_write(lt9611->regmap, sleep_setup, ARRAY_SIZE(sleep_setup)); +} + +static int lt9611_power_on(struct lt9611 *lt9611) +{ + int ret; + const struct reg_sequence seq[] = { + /* LT9611_System_Init */ + { 0xFF, 0x81 }, + { 0x01, 0x18 }, /* sel xtal clock */ + + /* timer for frequency meter */ + { 0xff, 0x82 }, + { 0x1b, 0x69 }, /*timer 2*/ + { 0x1c, 0x78 }, + { 0xcb, 0x69 }, /*timer 1 */ + { 0xcc, 0x78 }, + + /* irq init */ + { 0xff, 0x82 }, + { 0x51, 0x01 }, + { 0x58, 0x0a }, /* hpd irq */ + { 0x59, 0x80 }, /* hpd debounce width */ + { 0x9e, 0xf7 }, /* video check irq */ + + /* power consumption for work */ + { 0xff, 0x80 }, + { 0x04, 0xf0 }, + { 0x06, 0xf0 }, + { 0x0a, 0x80 }, + { 0x0b, 0x40 }, + { 0x0d, 0xef }, + { 0x11, 0xfa }, + }; + + if (lt9611->power_on) + return 0; + + dev_dbg(lt9611->dev, "power on\n"); + + ret = regmap_multi_reg_write(lt9611->regmap, seq, ARRAY_SIZE(seq)); + if (!ret) + lt9611->power_on = true; + + return ret; +} + +static int lt9611_power_off(struct lt9611 *lt9611) +{ + int ret; + const struct reg_sequence off[] = { + { 0xff, 0x81 }, + { 0x30, 0x6a }, + }; + + dev_dbg(lt9611->dev, "power off\n"); + + ret = regmap_multi_reg_write(lt9611->regmap, off, ARRAY_SIZE(off)); + if (!ret) + lt9611->power_on = false; + + return ret; +} + +static void lt9611_reset(struct lt9611 *lt9611) +{ + gpiod_set_value_cansleep(lt9611->reset_gpio, 1); + msleep(20); + gpiod_set_value_cansleep(lt9611->reset_gpio, 0); + msleep(20); + gpiod_set_value_cansleep(lt9611->reset_gpio, 1); + msleep(100); +} + +static void lt9611_assert_5v(struct lt9611 *lt9611) +{ + if (!lt9611->enable_gpio) + return; + + gpiod_set_value_cansleep(lt9611->enable_gpio, 1); + msleep(20); +} + +static int lt9611_regulator_init(struct lt9611 *lt9611) +{ + int ret; + + lt9611->supplies[0].supply = "vdd"; + lt9611->supplies[1].supply = "vcc"; + ret = devm_regulator_bulk_get(lt9611->dev, 2, lt9611->supplies); + if (ret < 0) + return ret; + + return regulator_set_load(lt9611->supplies[0].consumer, 300000); +} + +static int lt9611_regulator_enable(struct lt9611 *lt9611) +{ + int ret; + + ret = regulator_enable(lt9611->supplies[0].consumer); + if (ret < 0) + return ret; + + usleep_range(1000, 10000); + + ret = regulator_enable(lt9611->supplies[1].consumer); + if (ret < 0) { + regulator_disable(lt9611->supplies[0].consumer); + return ret; + } + + return 0; +} + +static struct lt9611_mode *lt9611_find_mode(const struct drm_display_mode *mode) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(lt9611_modes); i++) { + if (lt9611_modes[i].hdisplay == mode->hdisplay && + lt9611_modes[i].vdisplay == mode->vdisplay && + lt9611_modes[i].fps == drm_mode_vrefresh(mode)) { + return <9611_modes[i]; + } + } + + return NULL; +} + +/* connector funcs */ +static enum drm_connector_status +lt9611_connector_detect(struct drm_connector *connector, bool force) +{ + struct lt9611 *lt9611 = connector_to_lt9611(connector); + unsigned int reg_val = 0; + int connected = 0; + + regmap_write(lt9611->regmap, 0xff, 0x82); + regmap_read(lt9611->regmap, 0x5e, ®_val); + connected = (reg_val & BIT(2)); + dev_dbg(lt9611->dev, "connected = %x\n", connected); + + lt9611->status = connected ? connector_status_connected : + connector_status_disconnected; + + return lt9611->status; +} + +static int lt9611_read_edid(struct lt9611 *lt9611) +{ + unsigned int temp; + int ret = 0; + int i, j; + + memset(lt9611->edid_buf, 0, EDID_SEG_SIZE); + + regmap_write(lt9611->regmap, 0xff, 0x85); + regmap_write(lt9611->regmap, 0x03, 0xc9); + regmap_write(lt9611->regmap, 0x04, 0xa0); /* 0xA0 is EDID device address */ + regmap_write(lt9611->regmap, 0x05, 0x00); /* 0x00 is EDID offset address */ + regmap_write(lt9611->regmap, 0x06, 0x20); /* length for read */ + regmap_write(lt9611->regmap, 0x14, 0x7f); + + for (i = 0 ; i < 8 ; i++) { + regmap_write(lt9611->regmap, 0x05, i * 32); /* offset address */ + regmap_write(lt9611->regmap, 0x07, 0x36); + regmap_write(lt9611->regmap, 0x07, 0x31); + regmap_write(lt9611->regmap, 0x07, 0x37); + usleep_range(5000, 10000); + + regmap_read(lt9611->regmap, 0x40, &temp); + + if (temp & 0x02) { /*KEY_DDC_ACCS_DONE=1*/ + for (j = 0; j < 32; j++) { + regmap_read(lt9611->regmap, 0x83, &temp); + lt9611->edid_buf[i*32+j] = temp; + } + } else if (temp & 0x50) { /* DDC No Ack or Abitration lost */ + dev_err(lt9611->dev, "read edid failed: no ack\n"); + ret = -EIO; + goto end; + } else { + dev_err(lt9611->dev, "read edid failed: access not done\n"); + ret = -EIO; + goto end; + } + } + + dev_dbg(lt9611->dev, "read edid succeeded, checksum = 0x%x\n", + lt9611->edid_buf[255]); + +end: + regmap_write(lt9611->regmap, 0x07, 0x1f); + return ret; +} + +/* TODO: add support for more extenstion blocks */ +static int lt9611_get_edid_block(void *data, u8 *buf, unsigned int block, + size_t len) +{ + struct lt9611 *lt9611 = data; + int ret; + + dev_dbg(lt9611->dev, "get edid block: block=%d, len=%d\n", block, (int)len); + + if (len > 128) + return -EINVAL; + + /* support up to 1 extension block */ + if (block > 1) + return -EINVAL; + + if (block == 0) { + /* always read 2 edid blocks once */ + ret = lt9611_read_edid(lt9611); + if (ret) { + dev_err(lt9611->dev, "edid read failed\n"); + return ret; + } + } + + if (block % 2 == 0) + memcpy(buf, lt9611->edid_buf, len); + else + memcpy(buf, lt9611->edid_buf + 128, len); + + return 0; +} + +static int lt9611_connector_get_modes(struct drm_connector *connector) +{ + struct lt9611 *lt9611 = connector_to_lt9611(connector); + unsigned int count; + struct edid *edid; + + dev_dbg(lt9611->dev, "get modes\n"); + + lt9611_power_on(lt9611); + edid = drm_do_get_edid(connector, lt9611_get_edid_block, lt9611); + drm_connector_update_edid_property(connector, edid); + count = drm_add_edid_modes(connector, edid); + kfree(edid); + + return count; +} + +static enum drm_mode_status lt9611_connector_mode_valid( + struct drm_connector *connector, struct drm_display_mode *mode) +{ + struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode); + + return lt9611_mode ? MODE_OK : MODE_BAD; +} + +/* bridge funcs */ +static void lt9611_bridge_enable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + const struct reg_sequence on[] = { + { 0xff, 0x81 }, + { 0x30, 0xea }, + }; + + dev_dbg(lt9611->dev, "bridge enable\n"); + + if (lt9611_power_on(lt9611)) { + dev_err(lt9611->dev, "power on failed\n"); + return; + } + + dev_dbg(lt9611->dev, "video on\n"); + + lt9611_mipi_input_analog(lt9611); + lt9611_hdmi_tx_digital(lt9611); + lt9611_hdmi_tx_phy(lt9611); + + msleep(500); + + lt9611_video_check(lt9611); + + /* Enable HDMI output */ + regmap_multi_reg_write(lt9611->regmap, on, ARRAY_SIZE(on)); +} + +static void lt9611_bridge_disable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + int ret; + const struct reg_sequence hdmi_off[] = { + { 0xff, 0x81 }, + { 0x30, 0x6a }, + }; + + dev_dbg(lt9611->dev, "bridge disable\n"); + + /* Disable HDMI output */ + ret = regmap_multi_reg_write(lt9611->regmap, hdmi_off, ARRAY_SIZE(hdmi_off)); + if (ret) { + dev_err(lt9611->dev, "video on failed\n"); + return; + } + + if (lt9611_power_off(lt9611)) { + dev_err(lt9611->dev, "power on failed\n"); + return; + } +} + +static struct drm_connector_helper_funcs lt9611_bridge_connector_helper_funcs = { + .get_modes = lt9611_connector_get_modes, + .mode_valid = lt9611_connector_mode_valid, +}; + +static const struct drm_connector_funcs lt9611_bridge_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .detect = lt9611_connector_detect, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static struct mipi_dsi_device *lt9611_attach_dsi(struct lt9611 *lt9611, + struct device_node *dsi_node) +{ + const struct mipi_dsi_device_info info = { "lt9611", 0, NULL }; + struct mipi_dsi_device *dsi; + struct mipi_dsi_host *host; + int ret; + + host = of_find_mipi_dsi_host_by_node(dsi_node); + if (!host) { + dev_err(lt9611->dev, "failed to find dsi host\n"); + return ERR_PTR(-EPROBE_DEFER); + } + + dsi = mipi_dsi_device_register_full(host, &info); + if (IS_ERR(dsi)) { + dev_err(lt9611->dev, "failed to create dsi device\n"); + return dsi; + } + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | + MIPI_DSI_MODE_VIDEO_HSE; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(lt9611->dev, "failed to attach dsi to host\n"); + mipi_dsi_device_unregister(dsi); + return ERR_PTR(ret); + } + + return dsi; +} + +static int lt9611_bridge_attach(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + int ret; + + dev_dbg(lt9611->dev, "bridge attach\n"); + + ret = drm_connector_init(bridge->dev, <9611->connector, + <9611_bridge_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA); + if (ret) { + DRM_ERROR("Failed to initialize connector with drm\n"); + return ret; + } + + drm_connector_helper_add(<9611->connector, + <9611_bridge_connector_helper_funcs); + drm_connector_attach_encoder(<9611->connector, bridge->encoder); + + if (!bridge->encoder) { + DRM_ERROR("Parent encoder object not found"); + return -ENODEV; + } + + /* Attach primary DSI */ + lt9611->dsi0 = lt9611_attach_dsi(lt9611, lt9611->dsi0_node); + if (IS_ERR(lt9611->dsi0)) + return PTR_ERR(lt9611->dsi0); + + /* Attach secondary DSI, if specified */ + if (lt9611->dsi1_node) { + lt9611->dsi1 = lt9611_attach_dsi(lt9611, lt9611->dsi1_node); + if (IS_ERR(lt9611->dsi1)) { + ret = PTR_ERR(lt9611->dsi1); + goto err_unregister_dsi0; + } + } + + return 0; + +err_unregister_dsi0: + mipi_dsi_device_unregister(lt9611->dsi0); + + return ret; +} + +static void lt9611_bridge_detach(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + if (lt9611->dsi1) { + mipi_dsi_detach(lt9611->dsi1); + mipi_dsi_device_unregister(lt9611->dsi1); + } + + mipi_dsi_detach(lt9611->dsi0); + mipi_dsi_device_unregister(lt9611->dsi0); +} + +static enum drm_mode_status +lt9611_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_mode *mode) +{ + struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode); + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + if (lt9611_mode->intfs > 1 && !lt9611->dsi1) + return MODE_PANEL; + else + return MODE_OK; +} + +static void lt9611_bridge_pre_enable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + dev_dbg(lt9611->dev, "bridge pre_enable\n"); + + regmap_write(lt9611->regmap, 0xff, 0x80); + regmap_write(lt9611->regmap, 0xee, 0x01); +} + +static void lt9611_bridge_post_disable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + dev_dbg(lt9611->dev, "bridge post_disable\n"); + + lt9611_sleep_setup(lt9611); +} + +static void lt9611_bridge_mode_set(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + const struct drm_display_mode *adj_mode) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + struct hdmi_avi_infoframe avi_frame; + int ret; + + dev_dbg(lt9611->dev, "bridge mode_set: hdisplay=%d, vdisplay=%d, vrefresh=%d, clock=%d\n", + adj_mode->hdisplay, adj_mode->vdisplay, + adj_mode->vrefresh, adj_mode->clock); + + lt9611_mipi_input_digital(lt9611, mode); + lt9611_pll_setup(lt9611, mode); + lt9611_mipi_video_setup(lt9611, mode); + lt9611_pcr_setup(lt9611, mode); + + ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, + <9611->connector, + mode); + if (!ret) + lt9611->vic = avi_frame.video_code; +} + +static const struct drm_bridge_funcs lt9611_bridge_funcs = { + .attach = lt9611_bridge_attach, + .detach = lt9611_bridge_detach, + .mode_valid = lt9611_bridge_mode_valid, + .pre_enable = lt9611_bridge_pre_enable, + .enable = lt9611_bridge_enable, + .disable = lt9611_bridge_disable, + .post_disable = lt9611_bridge_post_disable, + .mode_set = lt9611_bridge_mode_set, +}; + +static int lt9611_parse_dt(struct device *dev, + struct lt9611 *lt9611) +{ + lt9611->dsi0_node = of_graph_get_remote_node(dev->of_node, 1, -1); + if (!lt9611->dsi0_node) { + DRM_DEV_ERROR(dev, + "failed to get remote node for primary dsi\n"); + return -ENODEV; + } + + lt9611->dsi1_node = of_graph_get_remote_node(dev->of_node, 2, -1); + + lt9611->ac_mode = of_property_read_bool(dev->of_node, "lt,ac-mode"); + dev_dbg(lt9611->dev, "ac_mode=%d\n", lt9611->ac_mode); + + return 0; +} + +static int lt9611_gpio_init(struct lt9611 *lt9611) +{ + struct device *dev = lt9611->dev; + + lt9611->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(lt9611->reset_gpio)) { + dev_err(dev, "failed to acquire reset gpio\n"); + return PTR_ERR(lt9611->reset_gpio); + } + + lt9611->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); + if (IS_ERR(lt9611->enable_gpio)) { + dev_err(dev, "failed to acquire enable gpio\n"); + return PTR_ERR(lt9611->enable_gpio); + } + + return 0; +} + +static int lt9611_read_device_rev(struct lt9611 *lt9611) +{ + unsigned int rev; + int ret; + + regmap_write(lt9611->regmap, 0xff, 0x80); + regmap_write(lt9611->regmap, 0xee, 0x01); + + ret = regmap_read(lt9611->regmap, 0x02, &rev); + if (ret) + dev_err(lt9611->dev, "failed to read revision: %d\n", ret); + + dev_info(lt9611->dev, "LT9611 revsion: 0x%x\n", rev); + + return ret; +} + +int lt9611_hdmi_hw_params(struct device *dev, void *data, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms) +{ + return 0; +} + +static int lt9611_audio_startup(struct device *dev, void *data) +{ + struct lt9611 *lt9611 = data; + const struct reg_sequence init[] = { + { 0xff, 0x82 }, + { 0xd6, 0x8c }, + { 0xd7, 0x04 }, + + { 0xff, 0x84 }, + { 0x06, 0x18 }, + { 0x07, 0xf0 }, + + { 0x34, 0xd4 }, + }; + + regmap_multi_reg_write(lt9611->regmap, init, ARRAY_SIZE(init)); + + return 0; +} + +static void lt9611_audio_shutdown(struct device *dev, void *data) +{ + struct lt9611 *lt9611 = data; + const struct reg_sequence exit[] = { + { 0xff, 0x84 }, + { 0x06, 0x00 }, + { 0x07, 0x00 }, + }; + + regmap_multi_reg_write(lt9611->regmap, exit, ARRAY_SIZE(exit)); +} + +static int lt9611_hdmi_i2s_get_dai_id(struct snd_soc_component *component, + struct device_node *endpoint) +{ + struct of_endpoint of_ep; + int ret; + +pr_err("DEBUG: %s: %d \n", __func__, __LINE__); + ret = of_graph_parse_endpoint(endpoint, &of_ep); + if (ret < 0) + return ret; + + /* + * HDMI sound should be located as reg = <2> + * Then, it is sound port 0 + */ + if (of_ep.port == 2) + return 0; + + return -EINVAL; +} + +static const struct hdmi_codec_ops lt9611_codec_ops = { + .hw_params = lt9611_hdmi_hw_params, + .audio_shutdown = lt9611_audio_shutdown, + .audio_startup = lt9611_audio_startup, + .get_dai_id = lt9611_hdmi_i2s_get_dai_id, +}; + +static struct hdmi_codec_pdata codec_data = { + .ops = <9611_codec_ops, + .max_i2s_channels = 8, + .i2s = 1, +}; + +int lt9611_audio_init(struct device *dev, struct lt9611 *lt9611) +{ + codec_data.data = lt9611; + lt9611->audio_pdev = platform_device_register_data(dev, + HDMI_CODEC_DRV_NAME, + PLATFORM_DEVID_AUTO, + &codec_data, + sizeof(codec_data)); + return PTR_ERR_OR_ZERO(lt9611->audio_pdev); +} + +void lt9611_audio_exit(struct lt9611 *lt9611) +{ + if (lt9611->audio_pdev) { + platform_device_unregister(lt9611->audio_pdev); + lt9611->audio_pdev = NULL; + } +} + +static int lt9611_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lt9611 *lt9611; + struct device *dev = &client->dev; + int ret; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(dev, "device doesn't support I2C\n"); + return -ENODEV; + } + + lt9611 = devm_kzalloc(dev, sizeof(*lt9611), GFP_KERNEL); + if (!lt9611) + return -ENOMEM; + + lt9611->dev = &client->dev; + lt9611->client = client; + + lt9611->regmap = devm_regmap_init_i2c(client, <9611_regmap_config); + if (IS_ERR(lt9611->regmap)) { + DRM_ERROR("regmap i2c init failed\n"); + return PTR_ERR(lt9611->regmap); + } + + ret = lt9611_parse_dt(&client->dev, lt9611); + if (ret) { + dev_err(dev, "failed to parse device tree\n"); + return ret; + } + + ret = lt9611_gpio_init(lt9611); + if (ret < 0) + return ret; + + ret = lt9611_regulator_init(lt9611); + if (ret < 0) + return ret; + + lt9611_assert_5v(lt9611); + + ret = lt9611_regulator_enable(lt9611); + if (ret) + return ret; + + lt9611_reset(lt9611); + + ret = lt9611_read_device_rev(lt9611); + if (ret) { + dev_err(dev, "failed to read chip rev\n"); + goto err_disable_regulators; + } + + + ret = devm_request_threaded_irq(dev, client->irq, NULL, + lt9611_irq_thread_handler, + IRQF_ONESHOT, "lt9611", lt9611); + if (ret) { + dev_err(dev, "failed to request irq\n"); + goto err_disable_regulators; + } + + i2c_set_clientdata(client, lt9611); + + lt9611->bridge.funcs = <9611_bridge_funcs; + lt9611->bridge.of_node = client->dev.of_node; + + drm_bridge_add(<9611->bridge); + + lt9611_enable_hpd_interrupts(lt9611); + + return lt9611_audio_init(dev, lt9611); + +err_disable_regulators: + regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies); + + of_node_put(lt9611->dsi0_node); + of_node_put(lt9611->dsi1_node); + + return ret; +} + +static int lt9611_remove(struct i2c_client *client) +{ + struct lt9611 *lt9611 = i2c_get_clientdata(client); + + disable_irq(client->irq); + lt9611_audio_exit(lt9611); + drm_bridge_remove(<9611->bridge); + + regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies); + + of_node_put(lt9611->dsi0_node); + of_node_put(lt9611->dsi1_node); + + return 0; +} + + +static struct i2c_device_id lt9611_id[] = { + { "lt,lt9611", 0}, + {} +}; + +static const struct of_device_id lt9611_match_table[] = { + {.compatible = "lt,lt9611"}, + {} +}; +MODULE_DEVICE_TABLE(of, lt9611_match_table); + +static struct i2c_driver lt9611_driver = { + .driver = { + .name = "lt9611", + .of_match_table = lt9611_match_table, + }, + .probe = lt9611_probe, + .remove = lt9611_remove, + .id_table = lt9611_id, +}; +module_i2c_driver(lt9611_driver); + +MODULE_LICENSE("GPL v2"); |