[PATCH 06/10] drm/msm/hdmi: Add basic HDMI support for msm8996

[Stephane Viau]

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 at codeaurora.org>
---
 Documentation/devicetree/bindings/drm/msm/hdmi.txt |  3 +++
 drivers/gpu/drm/msm/hdmi/hdmi.c                    | 17 ++++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/drm/msm/hdmi.txt b/Documentation/devicetree/bindings/drm/msm/hdmi.txt
index e926239..379ee2e 100644
--- 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 101b324..1f4a95e 100644
--- 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 },
-- 
Qualcomm Innovation Center, Inc.

The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project