drm/msm/hdmi: Add basic HDMI support for msm8996

The HDMI controller is new in MDP5 v1.7. As of now, this change
doesn't reflect the novelty and only adds the basics so the probe
gets triggered.

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/Documentation/devicetree/bindings/drm/msm/hdmi.txt b/Documentation/devicetree/bindings/drm/msm/hdmi.txt
index e926239e11011c7b96e4b19d6f0f272853cb621d..379ee2ea9a3d848e881af9cc45809004cd1022ea 100644 (file)
--- a/Documentation/devicetree/bindings/drm/msm/hdmi.txt
+++ b/Documentation/devicetree/bindings/drm/msm/hdmi.txt
@@ -2,6 +2,7 @@ Qualcomm adreno/snapdragon hdmi output
 
 Required properties:
 - compatible: one of the following
+   * "qcom,hdmi-tx-8996"
    * "qcom,hdmi-tx-8994"
    * "qcom,hdmi-tx-8084"
    * "qcom,hdmi-tx-8974"
@@ -21,6 +22,7 @@ Required properties:
 Optional properties:
 - qcom,hdmi-tx-mux-en-gpio: hdmi mux enable pin
 - qcom,hdmi-tx-mux-sel-gpio: hdmi mux select pin
+- power-domains: reference to the power domain(s), if available.
 - pinctrl-names: the pin control state names; should contain "default"
 - pinctrl-0: the default pinctrl state (active)
 - pinctrl-1: the "sleep" pinctrl state
@@ -35,6 +37,7 @@ Example:
                reg-names = "core_physical";
                reg = <0x04a00000 0x1000>;
                interrupts = <GIC_SPI 79 0>;
+               power-domains = <&mmcc MDSS_GDSC>;
                clock-names =
                    "core_clk",
                    "master_iface_clk",

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 101b324cdeeff8e269d62454f20ccff5b66a32bf..1f4a95eeb348190a01aaa05207abc9c20679982a 100644 (file)
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -328,6 +328,9 @@ fail:
        .item ## _names = item ##_names_ ## entry, \
        .item ## _cnt   = ARRAY_SIZE(item ## _names_ ## entry)
 
+static const char *pwr_reg_names_none[] = {};
+static const char *hpd_reg_names_none[] = {};
+
 static struct hdmi_platform_config hdmi_tx_8660_config = {
                .phy_init = hdmi_phy_8x60_init,
 };
@@ -367,18 +370,26 @@ static struct hdmi_platform_config hdmi_tx_8084_config = {
                .hpd_freq      = hpd_clk_freq_8x74,
 };
 
-static const char *hpd_reg_names_8x94[] = {};
-
 static struct hdmi_platform_config hdmi_tx_8994_config = {
                .phy_init = NULL, /* nothing to do for this HDMI PHY 20nm */
                HDMI_CFG(pwr_reg, 8x74),
-               HDMI_CFG(hpd_reg, 8x94),
+               HDMI_CFG(hpd_reg, none),
+               HDMI_CFG(pwr_clk, 8x74),
+               HDMI_CFG(hpd_clk, 8x74),
+               .hpd_freq      = hpd_clk_freq_8x74,
+};
+
+static struct hdmi_platform_config hdmi_tx_8996_config = {
+               .phy_init = NULL,
+               HDMI_CFG(pwr_reg, none),
+               HDMI_CFG(hpd_reg, none),
                HDMI_CFG(pwr_clk, 8x74),
                HDMI_CFG(hpd_clk, 8x74),
                .hpd_freq      = hpd_clk_freq_8x74,
 };
 
 static const struct of_device_id dt_match[] = {
+       { .compatible = "qcom,hdmi-tx-8996", .data = &hdmi_tx_8996_config },
        { .compatible = "qcom,hdmi-tx-8994", .data = &hdmi_tx_8994_config },
        { .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8084_config },
        { .compatible = "qcom,hdmi-tx-8974", .data = &hdmi_tx_8974_config },