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path: root/drivers/gpu/drm/msm/hdmi/hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/msm/hdmi/hdmi.c')
-rw-r--r--drivers/gpu/drm/msm/hdmi/hdmi.c79
1 files changed, 64 insertions, 15 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 814536202efe..101b324cdeef 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -22,7 +22,9 @@
void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
{
uint32_t ctrl = 0;
+ unsigned long flags;
+ spin_lock_irqsave(&hdmi->reg_lock, flags);
if (power_on) {
ctrl |= HDMI_CTRL_ENABLE;
if (!hdmi->hdmi_mode) {
@@ -37,6 +39,7 @@ void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
}
hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
+ spin_unlock_irqrestore(&hdmi->reg_lock, flags);
DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
power_on ? "Enable" : "Disable", ctrl);
}
@@ -51,6 +54,10 @@ static irqreturn_t hdmi_irq(int irq, void *dev_id)
/* Process DDC: */
hdmi_i2c_irq(hdmi->i2c);
+ /* Process HDCP: */
+ if (hdmi->hdcp_ctrl)
+ hdmi_hdcp_irq(hdmi->hdcp_ctrl);
+
/* TODO audio.. */
return IRQ_HANDLED;
@@ -60,6 +67,15 @@ static void hdmi_destroy(struct hdmi *hdmi)
{
struct hdmi_phy *phy = hdmi->phy;
+ /*
+ * at this point, hpd has been disabled,
+ * after flush workq, it's safe to deinit hdcp
+ */
+ if (hdmi->workq) {
+ flush_workqueue(hdmi->workq);
+ destroy_workqueue(hdmi->workq);
+ }
+ hdmi_hdcp_destroy(hdmi);
if (phy)
phy->funcs->destroy(phy);
@@ -77,6 +93,7 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
{
struct hdmi_platform_config *config = pdev->dev.platform_data;
struct hdmi *hdmi = NULL;
+ struct resource *res;
int i, ret;
hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
@@ -87,18 +104,18 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
hdmi->pdev = pdev;
hdmi->config = config;
+ spin_lock_init(&hdmi->reg_lock);
/* not sure about which phy maps to which msm.. probably I miss some */
- if (config->phy_init)
+ if (config->phy_init) {
hdmi->phy = config->phy_init(hdmi);
- else
- hdmi->phy = ERR_PTR(-ENXIO);
- if (IS_ERR(hdmi->phy)) {
- ret = PTR_ERR(hdmi->phy);
- dev_err(&pdev->dev, "failed to load phy: %d\n", ret);
- hdmi->phy = NULL;
- goto fail;
+ if (IS_ERR(hdmi->phy)) {
+ ret = PTR_ERR(hdmi->phy);
+ dev_err(&pdev->dev, "failed to load phy: %d\n", ret);
+ hdmi->phy = NULL;
+ goto fail;
+ }
}
hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
@@ -107,6 +124,18 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
goto fail;
}
+ /* HDCP needs physical address of hdmi register */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ config->mmio_name);
+ hdmi->mmio_phy_addr = res->start;
+
+ hdmi->qfprom_mmio = msm_ioremap(pdev,
+ config->qfprom_mmio_name, "HDMI_QFPROM");
+ if (IS_ERR(hdmi->qfprom_mmio)) {
+ dev_info(&pdev->dev, "can't find qfprom resource\n");
+ hdmi->qfprom_mmio = NULL;
+ }
+
hdmi->hpd_regs = devm_kzalloc(&pdev->dev, sizeof(hdmi->hpd_regs[0]) *
config->hpd_reg_cnt, GFP_KERNEL);
if (!hdmi->hpd_regs) {
@@ -189,6 +218,8 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
hdmi->pwr_clks[i] = clk;
}
+ hdmi->workq = alloc_ordered_workqueue("msm_hdmi", 0);
+
hdmi->i2c = hdmi_i2c_init(hdmi);
if (IS_ERR(hdmi->i2c)) {
ret = PTR_ERR(hdmi->i2c);
@@ -197,6 +228,12 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
goto fail;
}
+ hdmi->hdcp_ctrl = hdmi_hdcp_init(hdmi);
+ if (IS_ERR(hdmi->hdcp_ctrl)) {
+ dev_warn(&pdev->dev, "failed to init hdcp: disabled\n");
+ hdmi->hdcp_ctrl = NULL;
+ }
+
return hdmi;
fail:
@@ -310,7 +347,7 @@ static const char *pwr_clk_names_8x74[] = {"extp_clk", "alt_iface_clk"};
static const char *hpd_clk_names_8x74[] = {"iface_clk", "core_clk", "mdp_core_clk"};
static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0};
-static struct hdmi_platform_config hdmi_tx_8074_config = {
+static struct hdmi_platform_config hdmi_tx_8974_config = {
.phy_init = hdmi_phy_8x74_init,
HDMI_CFG(pwr_reg, 8x74),
HDMI_CFG(hpd_reg, 8x74),
@@ -330,9 +367,21 @@ 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(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-8994", .data = &hdmi_tx_8994_config },
{ .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8084_config },
- { .compatible = "qcom,hdmi-tx-8074", .data = &hdmi_tx_8074_config },
+ { .compatible = "qcom,hdmi-tx-8974", .data = &hdmi_tx_8974_config },
{ .compatible = "qcom,hdmi-tx-8960", .data = &hdmi_tx_8960_config },
{ .compatible = "qcom,hdmi-tx-8660", .data = &hdmi_tx_8660_config },
{}
@@ -347,8 +396,7 @@ static int get_gpio(struct device *dev, struct device_node *of_node, const char
snprintf(name2, sizeof(name2), "%s-gpio", name);
gpio = of_get_named_gpio(of_node, name2, 0);
if (gpio < 0) {
- dev_err(dev, "failed to get gpio: %s (%d)\n",
- name, gpio);
+ DBG("failed to get gpio: %s (%d)", name, gpio);
gpio = -1;
}
}
@@ -376,6 +424,7 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
}
hdmi_cfg->mmio_name = "core_physical";
+ hdmi_cfg->qfprom_mmio_name = "qfprom_physical";
hdmi_cfg->ddc_clk_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-clk");
hdmi_cfg->ddc_data_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-ddc-data");
hdmi_cfg->hpd_gpio = get_gpio(dev, of_node, "qcom,hdmi-tx-hpd");
@@ -391,7 +440,6 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
if (cpu_is_apq8064()) {
static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
config.phy_init = hdmi_phy_8960_init;
- config.mmio_name = "hdmi_msm_hdmi_addr";
config.hpd_reg_names = hpd_reg_names;
config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
config.hpd_clk_names = hpd_clk_names;
@@ -404,7 +452,6 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
} else if (cpu_is_msm8960() || cpu_is_msm8960ab()) {
static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
config.phy_init = hdmi_phy_8960_init;
- config.mmio_name = "hdmi_msm_hdmi_addr";
config.hpd_reg_names = hpd_reg_names;
config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
config.hpd_clk_names = hpd_clk_names;
@@ -419,7 +466,6 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
"8901_hdmi_mvs", "8901_mpp0"
};
config.phy_init = hdmi_phy_8x60_init;
- config.mmio_name = "hdmi_msm_hdmi_addr";
config.hpd_reg_names = hpd_reg_names;
config.hpd_reg_cnt = ARRAY_SIZE(hpd_reg_names);
config.hpd_clk_names = hpd_clk_names;
@@ -430,6 +476,9 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
config.mux_en_gpio = -1;
config.mux_sel_gpio = -1;
}
+ config.mmio_name = "hdmi_msm_hdmi_addr";
+ config.qfprom_mmio_name = "hdmi_msm_qfprom_addr";
+
hdmi_cfg = &config;
#endif
dev->platform_data = hdmi_cfg;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 18:54:12 +0000