From: Beeresh Gopal <gbeeresh@xxxxxxxxxxxxxx>
lpm-mux is programmed to enable HDMI connector
on the docking station for S805 chipset based
devices.
Signed-off-by: Beeresh Gopal <gbeeresh@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/hdmi/hdmi.c | 1 +
drivers/gpu/drm/msm/hdmi/hdmi.h | 1 +
drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 24 +++++++++++++++++++++++-
3 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index bb1f696..f2c92e6 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -453,6 +453,7 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data)
config.hpd_gpio = get_gpio("qcom,hdmi-tx-hpd");
config.mux_en_gpio = get_gpio("qcom,hdmi-tx-mux-en");
config.mux_sel_gpio = get_gpio("qcom,hdmi-tx-mux-sel");
+ config.mux_lpm_gpio = get_gpio("qcom,hdmi-tx-mux-lpm");
config.shared_irq = true;
#else
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h
index 0a077b0..323ceb7 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.h
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -103,6 +103,7 @@ struct hdmi_platform_config {
/* gpio's: */
int ddc_clk_gpio, ddc_data_gpio, hpd_gpio, mux_en_gpio, mux_sel_gpio;
+ int mux_lpm_gpio;
/* older devices had their own irq, mdp5+ it is shared w/ mdp: */
bool shared_irq;
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
index 93d1551..1301d03 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
@@ -63,7 +63,8 @@ static int gpio_config(struct hdmi *hdmi, bool on)
ret = gpio_request(config->mux_en_gpio, "HDMI_MUX_EN");
if (ret) {
dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n",
- "HDMI_MUX_SEL", config->mux_en_gpio, ret);
+ "HDMI_MUX_EN",
+ config->mux_en_gpio, ret);
goto error4;
}
gpio_set_value_cansleep(config->mux_en_gpio, 1);
@@ -78,6 +79,19 @@ static int gpio_config(struct hdmi *hdmi, bool on)
}
gpio_set_value_cansleep(config->mux_sel_gpio, 0);
}
+
+ if (config->mux_lpm_gpio != -1) {
+ ret = gpio_request(config->mux_lpm_gpio,
+ "HDMI_MUX_LPM");
+ if (ret) {
+ dev_err(dev->dev,
+ "'%s'(%d) gpio_request failed: %d\n",
+ "HDMI_MUX_LPM",
+ config->mux_lpm_gpio, ret);
+ goto error6;
+ }
+ gpio_set_value_cansleep(config->mux_lpm_gpio, 1);
+ }
DBG("gpio on");
} else {
gpio_free(config->ddc_clk_gpio);
@@ -93,11 +107,19 @@ static int gpio_config(struct hdmi *hdmi, bool on)
gpio_set_value_cansleep(config->mux_sel_gpio, 1);
gpio_free(config->mux_sel_gpio);
}
+
+ if (config->mux_lpm_gpio != -1) {
+ gpio_set_value_cansleep(config->mux_lpm_gpio, 0);
+ gpio_free(config->mux_lpm_gpio);
+ }
DBG("gpio off");
}
return 0;
+error6:
+ if (config->mux_sel_gpio != -1)
+ gpio_free(config->mux_sel_gpio);
error5:
if (config->mux_en_gpio != -1)
gpio_free(config->mux_en_gpio);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
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