From ca381efd38df336f051fa5b01988ad8f82df7c80 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 12 Dec 2017 23:24:00 +0100 Subject: [PATCH v2 8/8] drm/rockchip: dw_hdmi: add dw-hdmi support for the rk3328 The rk3328 uses an external hdmi phy from Innosilicon which uses the generic phy framework for access. Add the necessary data and the compatible for it. Signed-off-by: Heiko Stuebner --- .../bindings/display/rockchip/dw_hdmi-rockchip.txt | 1 + drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 106 +++++++++++++++++++++ 2 files changed, 107 insertions(+) diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt index 937bfb472e1d..39143424a474 100644 --- a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt +++ b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt @@ -13,6 +13,7 @@ Required properties: - compatible: should be one of the following: "rockchip,rk3288-dw-hdmi" + "rockchip,rk3328-dw-hdmi" "rockchip,rk3399-dw-hdmi" - reg: See dw_hdmi.txt. - reg-io-width: See dw_hdmi.txt. Shall be 4. diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index 8595638d4990..ea7671591f70 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -25,6 +25,24 @@ #define RK3288_GRF_SOC_CON6 0x025C #define RK3288_HDMI_LCDC_SEL BIT(4) +#define RK3328_GRF_SOC_CON2 0x0408 + +#define RK3328_HDMI_SDAIN_MSK BIT(11) +#define RK3328_HDMI_SCLIN_MSK BIT(10) +#define RK3328_HDMI_HPD_IOE BIT(2) +#define RK3328_GRF_SOC_CON3 0x040c +/* need to be unset if hdmi or i2c should control voltage */ +#define RK3328_HDMI_SDA5V_GRF BIT(15) +#define RK3328_HDMI_SCL5V_GRF BIT(14) +#define RK3328_HDMI_HPD5V_GRF BIT(13) +#define RK3328_HDMI_CEC5V_GRF BIT(12) +#define RK3328_GRF_SOC_CON4 0x0410 +#define RK3328_HDMI_HPD_SARADC BIT(13) +#define RK3328_HDMI_CEC_5V BIT(11) +#define RK3328_HDMI_SDA_5V BIT(10) +#define RK3328_HDMI_SCL_5V BIT(9) +#define RK3328_HDMI_HPD_5V BIT(8) + #define RK3399_GRF_SOC_CON20 0x6250 #define RK3399_HDMI_LCDC_SEL BIT(6) @@ -300,6 +318,68 @@ static const struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_fun .atomic_check = dw_hdmi_rockchip_encoder_atomic_check, }; +static int dw_hdmi_rockchip_genphy_init(struct dw_hdmi *dw_hdmi, void *data, + struct drm_display_mode *mode) +{ + struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; + + return phy_power_on(hdmi->phy); +} + +static void dw_hdmi_rockchip_genphy_disable(struct dw_hdmi *dw_hdmi, void *data) +{ + struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; + + phy_power_off(hdmi->phy); +} + +static enum drm_connector_status +dw_hdmi_rk3328_read_hpd(struct dw_hdmi *dw_hdmi, void *data) +{ + struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; + enum drm_connector_status status; + + status = dw_hdmi_phy_read_hpd(dw_hdmi, data); + + if (status == connector_status_connected) + regmap_write(hdmi->regmap, + RK3328_GRF_SOC_CON4, + HIWORD_UPDATE(RK3328_HDMI_CEC_5V | RK3328_HDMI_SDA_5V | + RK3328_HDMI_SCL_5V, + RK3328_HDMI_CEC_5V | RK3328_HDMI_SDA_5V | + RK3328_HDMI_SCL_5V)); + else + regmap_write(hdmi->regmap, + RK3328_GRF_SOC_CON4, + HIWORD_UPDATE(0, + RK3328_HDMI_CEC_5V | RK3328_HDMI_SDA_5V | + RK3328_HDMI_SCL_5V)); + return status; +} + +static void dw_hdmi_rk3328_setup_hpd(struct dw_hdmi *dw_hdmi, void *data) +{ + struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; + + dw_hdmi_phy_setup_hpd(dw_hdmi, data); + + /* Enable and map pins to 3V grf-controlled io-voltage */ + regmap_write(hdmi->regmap, + RK3328_GRF_SOC_CON4, + HIWORD_UPDATE(0, RK3328_HDMI_HPD_SARADC | RK3328_HDMI_CEC_5V | + RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V | + RK3328_HDMI_HPD_5V)); + regmap_write(hdmi->regmap, + RK3328_GRF_SOC_CON3, + HIWORD_UPDATE(0, RK3328_HDMI_SDA5V_GRF | RK3328_HDMI_SCL5V_GRF | + RK3328_HDMI_HPD5V_GRF | RK3328_HDMI_CEC5V_GRF)); + regmap_write(hdmi->regmap, + RK3328_GRF_SOC_CON2, + HIWORD_UPDATE(RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK, + RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK | + RK3328_HDMI_HPD_IOE)); +} + static struct rockchip_hdmi_chip_data rk3288_chip_data = { .lcdsel_grf_reg = RK3288_GRF_SOC_CON6, .lcdsel_big = HIWORD_UPDATE(0, RK3288_HDMI_LCDC_SEL), @@ -314,6 +394,29 @@ static const struct dw_hdmi_plat_data rk3288_hdmi_drv_data = { .phy_data = &rk3288_chip_data, }; +static const struct dw_hdmi_phy_ops rk3328_hdmi_phy_ops = { + .init = dw_hdmi_rockchip_genphy_init, + .disable = dw_hdmi_rockchip_genphy_disable, + .read_hpd = dw_hdmi_rk3328_read_hpd, + .update_hpd = dw_hdmi_phy_update_hpd, + .setup_hpd = dw_hdmi_rk3328_setup_hpd, +}; + +static struct rockchip_hdmi_chip_data rk3328_chip_data = { + .lcdsel_grf_reg = -1, +}; + +static const struct dw_hdmi_plat_data rk3328_hdmi_drv_data = { + .mode_valid = dw_hdmi_rockchip_mode_valid, + .mpll_cfg = rockchip_mpll_cfg, + .cur_ctr = rockchip_cur_ctr, + .phy_config = rockchip_phy_config, + .phy_data = &rk3328_chip_data, + .phy_ops = &rk3328_hdmi_phy_ops, + .phy_name = "inno_dw_hdmi_phy2", + .phy_force_type = DW_HDMI_PHY_VENDOR_PHY, +}; + static struct rockchip_hdmi_chip_data rk3399_chip_data = { .lcdsel_grf_reg = RK3399_GRF_SOC_CON20, .lcdsel_big = HIWORD_UPDATE(0, RK3399_HDMI_LCDC_SEL), @@ -332,6 +435,9 @@ static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = { { .compatible = "rockchip,rk3288-dw-hdmi", .data = &rk3288_hdmi_drv_data }, + { .compatible = "rockchip,rk3328-dw-hdmi", + .data = &rk3328_hdmi_drv_data + }, { .compatible = "rockchip,rk3399-dw-hdmi", .data = &rk3399_hdmi_drv_data }, -- 2.15.1