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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.c66
1 files changed, 31 insertions, 35 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 0e4217be3f00..355afb936401 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -425,38 +425,6 @@ static const struct {
{ "qcom,hdmi-tx-mux-lpm", true, 1, "HDMI_MUX_LPM" },
};
-static int msm_hdmi_get_gpio(struct device_node *of_node, const char *name)
-{
- int gpio;
-
- /* try with the gpio names as in the table (downstream bindings) */
- gpio = of_get_named_gpio(of_node, name, 0);
- if (gpio < 0) {
- char name2[32];
-
- /* try with the gpio names as in the upstream bindings */
- snprintf(name2, sizeof(name2), "%s-gpios", name);
- gpio = of_get_named_gpio(of_node, name2, 0);
- if (gpio < 0) {
- char name3[32];
-
- /*
- * try again after stripping out the "qcom,hdmi-tx"
- * prefix. This is mainly to match "hpd-gpios" used
- * in the upstream bindings
- */
- if (sscanf(name2, "qcom,hdmi-tx-%s", name3))
- gpio = of_get_named_gpio(of_node, name3, 0);
- }
-
- if (gpio < 0) {
- DBG("failed to get gpio: %s (%d)", name, gpio);
- gpio = -1;
- }
- }
- return gpio;
-}
-
/*
* HDMI audio codec callbacks
*/
@@ -582,11 +550,39 @@ static int msm_hdmi_bind(struct device *dev, struct device *master, void *data)
hdmi_cfg->qfprom_mmio_name = "qfprom_physical";
for (i = 0; i < HDMI_MAX_NUM_GPIO; i++) {
- hdmi_cfg->gpios[i].num = msm_hdmi_get_gpio(of_node,
- msm_hdmi_gpio_pdata[i].name);
+ const char *name = msm_hdmi_gpio_pdata[i].name;
+ struct gpio_desc *gpiod;
+
+ /*
+ * We are fetching the GPIO lines "as is" since the connector
+ * code is enabling and disabling the lines. Until that point
+ * the power-on default value will be kept.
+ */
+ gpiod = devm_gpiod_get_optional(dev, name, GPIOD_ASIS);
+ /* This will catch e.g. -PROBE_DEFER */
+ if (IS_ERR(gpiod))
+ return PTR_ERR(gpiod);
+ if (!gpiod) {
+ /* Try a second time, stripping down the name */
+ char name3[32];
+
+ /*
+ * Try again after stripping out the "qcom,hdmi-tx"
+ * prefix. This is mainly to match "hpd-gpios" used
+ * in the upstream bindings.
+ */
+ if (sscanf(name, "qcom,hdmi-tx-%s", name3))
+ gpiod = devm_gpiod_get_optional(dev, name3, GPIOD_ASIS);
+ if (IS_ERR(gpiod))
+ return PTR_ERR(gpiod);
+ if (!gpiod)
+ DBG("failed to get gpio: %s", name);
+ }
+ hdmi_cfg->gpios[i].gpiod = gpiod;
+ if (gpiod)
+ gpiod_set_consumer_name(gpiod, msm_hdmi_gpio_pdata[i].label);
hdmi_cfg->gpios[i].output = msm_hdmi_gpio_pdata[i].output;
hdmi_cfg->gpios[i].value = msm_hdmi_gpio_pdata[i].value;
- hdmi_cfg->gpios[i].label = msm_hdmi_gpio_pdata[i].label;
}
dev->platform_data = hdmi_cfg;