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authorStephane Viau <sviau@codeaurora.org>2015-06-19 23:04:47 +0300
committerRob Clark <robdclark@gmail.com>2015-08-16 01:27:13 +0300
commit3a84f8469e2687b9fdcf83d615b8001a2443566a (patch)
tree3bc762248c38a8d43b55ac16e95022f12f5c4acb /drivers/gpu/drm/msm/hdmi
parentda32855219f86f27cad1b12be2264ffb0b97b9fa (diff)
downloadlinux-3a84f8469e2687b9fdcf83d615b8001a2443566a.tar.xz
drm/msm: Add support for msm8x94
This change adds the MDP and HDMI support for msm8x94. Note that HDMI PHY registers are not being accessed anymore from the driver. Signed-off-by: Stephane Viau <sviau@codeaurora.org> [rename compatible s/8x94/8994/ since preference is to not trust the marketing folks who invent chip #'s but instead name things after the lead chip.. we should rename some 80XY to 89XY to standardize on the lead chip but leave that for another patch. Also, update dt bindings doc] Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/hdmi')
-rw-r--r--drivers/gpu/drm/msm/hdmi/hdmi.c30
-rw-r--r--drivers/gpu/drm/msm/hdmi/hdmi_bridge.c8
-rw-r--r--drivers/gpu/drm/msm/hdmi/hdmi_connector.c42
3 files changed, 52 insertions, 28 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 049723da6cfe..a94a46867c84 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -107,16 +107,15 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
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");
@@ -368,7 +367,19 @@ 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_8x94_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_8x94_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-8960", .data = &hdmi_tx_8960_config },
@@ -385,8 +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;
}
}
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index 1dd093e3451c..92b69ae8caf9 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -100,7 +100,9 @@ static void hdmi_bridge_pre_enable(struct drm_bridge *bridge)
hdmi_audio_update(hdmi);
}
- phy->funcs->powerup(phy, hdmi->pixclock);
+ if (phy)
+ phy->funcs->powerup(phy, hdmi->pixclock);
+
hdmi_set_mode(hdmi, true);
if (hdmi->hdcp_ctrl)
@@ -126,7 +128,9 @@ static void hdmi_bridge_post_disable(struct drm_bridge *bridge)
DBG("power down");
hdmi_set_mode(hdmi, false);
- phy->funcs->powerdown(phy);
+
+ if (phy)
+ phy->funcs->powerdown(phy);
if (hdmi->power_on) {
power_off(bridge);
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
index d83fd2dcb776..a3b05ae52dae 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
@@ -84,21 +84,25 @@ static int gpio_config(struct hdmi *hdmi, bool on)
int ret;
if (on) {
- ret = gpio_request(config->ddc_clk_gpio, "HDMI_DDC_CLK");
- if (ret) {
- dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
- "HDMI_DDC_CLK", config->ddc_clk_gpio, ret);
- goto error1;
+ if (config->ddc_clk_gpio != -1) {
+ ret = gpio_request(config->ddc_clk_gpio, "HDMI_DDC_CLK");
+ if (ret) {
+ dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
+ "HDMI_DDC_CLK", config->ddc_clk_gpio, ret);
+ goto error1;
+ }
+ gpio_set_value_cansleep(config->ddc_clk_gpio, 1);
}
- gpio_set_value_cansleep(config->ddc_clk_gpio, 1);
- ret = gpio_request(config->ddc_data_gpio, "HDMI_DDC_DATA");
- if (ret) {
- dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
- "HDMI_DDC_DATA", config->ddc_data_gpio, ret);
- goto error2;
+ if (config->ddc_data_gpio != -1) {
+ ret = gpio_request(config->ddc_data_gpio, "HDMI_DDC_DATA");
+ if (ret) {
+ dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
+ "HDMI_DDC_DATA", config->ddc_data_gpio, ret);
+ goto error2;
+ }
+ gpio_set_value_cansleep(config->ddc_data_gpio, 1);
}
- gpio_set_value_cansleep(config->ddc_data_gpio, 1);
ret = gpio_request(config->hpd_gpio, "HDMI_HPD");
if (ret) {
@@ -143,8 +147,12 @@ static int gpio_config(struct hdmi *hdmi, bool on)
}
DBG("gpio on");
} else {
- gpio_free(config->ddc_clk_gpio);
- gpio_free(config->ddc_data_gpio);
+ if (config->ddc_clk_gpio != -1)
+ gpio_free(config->ddc_clk_gpio);
+
+ if (config->ddc_data_gpio != -1)
+ gpio_free(config->ddc_data_gpio);
+
gpio_free(config->hpd_gpio);
if (config->mux_en_gpio != -1) {
@@ -175,9 +183,11 @@ error5:
error4:
gpio_free(config->hpd_gpio);
error3:
- gpio_free(config->ddc_data_gpio);
+ if (config->ddc_data_gpio != -1)
+ gpio_free(config->ddc_data_gpio);
error2:
- gpio_free(config->ddc_clk_gpio);
+ if (config->ddc_clk_gpio != -1)
+ gpio_free(config->ddc_clk_gpio);
error1:
return ret;
}