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>
Signed-off-by: Stephane Viau <sviau@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 | 21 +++++++++++++++++++++
3 files changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index ae750f6..6229daf 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -294,6 +294,7 @@ 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 9fafee6..0fb0036 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.h
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -95,6 +95,7 @@ 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 7dedfdd..113c0f8 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
@@ -78,6 +78,19 @@ 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 +106,19 @@ 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);
--
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