diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 6ad688b320ae..4e8df948b3b8 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -4,9 +4,11 @@
  * datasheet: http://www.ti.com/lit/ds/symlink/sn65dsi86.pdf
  */
 
+#include <linux/bits.h>
 #include <linux/clk.h>
 #include <linux/debugfs.h>
 #include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
 #include <linux/i2c.h>
 #include <linux/iopoll.h>
 #include <linux/module.h>
@@ -54,6 +56,14 @@
 #define  BPP_18_RGB				BIT(0)
 #define SN_HPD_DISABLE_REG			0x5C
 #define  HPD_DISABLE				BIT(0)
+#define SN_GPIO_IO_REG				0x5E
+#define  SN_GPIO_INPUT_SHIFT			4
+#define  SN_GPIO_OUTPUT_SHIFT			0
+#define SN_GPIO_CTRL_REG			0x5F
+#define  SN_GPIO_MUX_INPUT			0
+#define  SN_GPIO_MUX_OUTPUT			1
+#define  SN_GPIO_MUX_SPECIAL			2
+#define  SN_GPIO_MUX_MASK			0x3
 #define SN_AUX_WDATA_REG(x)			(0x64 + (x))
 #define SN_AUX_ADDR_19_16_REG			0x74
 #define SN_AUX_ADDR_15_8_REG			0x75
@@ -88,6 +98,35 @@
 
 #define SN_REGULATOR_SUPPLY_NUM		4
 
+#define SN_NUM_GPIOS			4
+#define SN_GPIO_PHYSICAL_OFFSET		1
+
+/**
+ * struct ti_sn_bridge - Platform data for ti-sn65dsi86 driver.
+ * @dev:          Pointer to our device.
+ * @regmap:       Regmap for accessing i2c.
+ * @aux:          Our aux channel.
+ * @bridge:       Our bridge.
+ * @connector:    Our connector.
+ * @debugfs:      Used for managing our debugfs.
+ * @host_node:    Remote DSI node.
+ * @dsi:          Our MIPI DSI source.
+ * @refclk:       Our reference clock.
+ * @panel:        Our panel.
+ * @enable_gpio:  The GPIO we toggle to enable the bridge.
+ * @supplies:     Data for bulk enabling/disabling our regulators.
+ * @dp_lanes:     Count of dp_lanes we're using.
+ *
+ * @gchip:        If we expose our GPIOs, this is used.
+ * @gchip_output: A cache of whether we've set GPIOs to output.  This
+ *                serves double-duty of keeping track of the direction and
+ *                also keeping track of whether we've incremented the
+ *                pm_runtime reference count for this pin, which we do
+ *                whenever a pin is configured as an output.  This is a
+ *                bitmap so we can do atomic ops on it without an extra
+ *                lock so concurrent users of our 4 GPIOs don't stomp on
+ *                each other's read-modify-write.
+ */
 struct ti_sn_bridge {
 	struct device			*dev;
 	struct regmap			*regmap;
@@ -102,6 +141,9 @@ struct ti_sn_bridge {
 	struct gpio_desc		*enable_gpio;
 	struct regulator_bulk_data	supplies[SN_REGULATOR_SUPPLY_NUM];
 	int				dp_lanes;
+
+	struct gpio_chip		gchip;
+	DECLARE_BITMAP(gchip_output, SN_NUM_GPIOS);
 };
 
 static const struct regmap_range ti_sn_bridge_volatile_ranges[] = {
@@ -874,6 +916,172 @@ static int ti_sn_bridge_parse_dsi_host(struct ti_sn_bridge *pdata)
 	return 0;
 }
 
+static int tn_sn_bridge_of_xlate(struct gpio_chip *chip,
+				 const struct of_phandle_args *gpiospec,
+				 u32 *flags)
+{
+	if (WARN_ON(gpiospec->args_count < chip->of_gpio_n_cells))
+		return -EINVAL;
+
+	if (gpiospec->args[0] > chip->ngpio || gpiospec->args[0] < 1)
+		return -EINVAL;
+
+	if (flags)
+		*flags = gpiospec->args[1];
+
+	return gpiospec->args[0] - SN_GPIO_PHYSICAL_OFFSET;
+}
+
+static int ti_sn_bridge_gpio_get_direction(struct gpio_chip *chip,
+					   unsigned int offset)
+{
+	struct ti_sn_bridge *pdata = gpiochip_get_data(chip);
+
+	/*
+	 * We already have to keep track of the direction because we use
+	 * that to figure out whether we've powered the device.  We can
+	 * just return that rather than (maybe) powering up the device
+	 * to ask its direction.
+	 */
+	return test_bit(offset, pdata->gchip_output) ?
+		GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
+}
+
+static int ti_sn_bridge_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+	struct ti_sn_bridge *pdata = gpiochip_get_data(chip);
+	unsigned int val;
+	int ret;
+
+	/*
+	 * When the pin is an input we don't forcibly keep the bridge
+	 * powered--we just power it on to read the pin.  NOTE: part of
+	 * the reason this works is that the bridge defaults (when
+	 * powered back on) to all 4 GPIOs being configured as GPIO input.
+	 * Also note that if something else is keeping the chip powered the
+	 * pm_runtime functions are lightweight increments of a refcount.
+	 */
+	pm_runtime_get_sync(pdata->dev);
+	ret = regmap_read(pdata->regmap, SN_GPIO_IO_REG, &val);
+	pm_runtime_put(pdata->dev);
+
+	if (ret)
+		return ret;
+
+	return !!(val & BIT(SN_GPIO_INPUT_SHIFT + offset));
+}
+
+static void ti_sn_bridge_gpio_set(struct gpio_chip *chip, unsigned int offset,
+				  int val)
+{
+	struct ti_sn_bridge *pdata = gpiochip_get_data(chip);
+	int ret;
+
+	if (!test_bit(offset, pdata->gchip_output)) {
+		dev_err(pdata->dev, "Ignoring GPIO set while input\n");
+		return;
+	}
+
+	val &= 1;
+	ret = regmap_update_bits(pdata->regmap, SN_GPIO_IO_REG,
+				 BIT(SN_GPIO_OUTPUT_SHIFT + offset),
+				 val << (SN_GPIO_OUTPUT_SHIFT + offset));
+}
+
+static int ti_sn_bridge_gpio_direction_input(struct gpio_chip *chip,
+					     unsigned int offset)
+{
+	struct ti_sn_bridge *pdata = gpiochip_get_data(chip);
+	int shift = offset * 2;
+	int ret;
+
+	if (!test_and_clear_bit(offset, pdata->gchip_output))
+		return 0;
+
+	ret = regmap_update_bits(pdata->regmap, SN_GPIO_CTRL_REG,
+				 SN_GPIO_MUX_MASK << shift,
+				 SN_GPIO_MUX_INPUT << shift);
+	if (ret) {
+		set_bit(offset, pdata->gchip_output);
+		return ret;
+	}
+
+	/*
+	 * NOTE: if nobody else is powering the device this may fully power
+	 * it off and when it comes back it will have lost all state, but
+	 * that's OK because the default is input and we're now an input.
+	 */
+	pm_runtime_put(pdata->dev);
+
+	return 0;
+}
+
+static int ti_sn_bridge_gpio_direction_output(struct gpio_chip *chip,
+					      unsigned int offset, int val)
+{
+	struct ti_sn_bridge *pdata = gpiochip_get_data(chip);
+	int shift = offset * 2;
+	int ret;
+
+	if (test_and_set_bit(offset, pdata->gchip_output))
+		return 0;
+
+	pm_runtime_get_sync(pdata->dev);
+
+	/* Set value first to avoid glitching */
+	ti_sn_bridge_gpio_set(chip, offset, val);
+
+	/* Set direction */
+	ret = regmap_update_bits(pdata->regmap, SN_GPIO_CTRL_REG,
+				 SN_GPIO_MUX_MASK << shift,
+				 SN_GPIO_MUX_OUTPUT << shift);
+	if (ret) {
+		clear_bit(offset, pdata->gchip_output);
+		pm_runtime_put(pdata->dev);
+	}
+
+	return ret;
+}
+
+static void ti_sn_bridge_gpio_free(struct gpio_chip *chip, unsigned int offset)
+{
+	/* We won't keep pm_runtime if we're input, so switch there on free */
+	ti_sn_bridge_gpio_direction_input(chip, offset);
+}
+
+static const char * const ti_sn_bridge_gpio_names[SN_NUM_GPIOS] = {
+	"GPIO1", "GPIO2", "GPIO3", "GPIO4"
+};
+
+static int ti_sn_setup_gpio_controller(struct ti_sn_bridge *pdata)
+{
+	int ret;
+
+	/* Only init if someone is going to use us as a GPIO controller */
+	if (!of_property_read_bool(pdata->dev->of_node, "gpio-controller"))
+		return 0;
+
+	pdata->gchip.label = dev_name(pdata->dev);
+	pdata->gchip.parent = pdata->dev;
+	pdata->gchip.owner = THIS_MODULE;
+	pdata->gchip.of_xlate = tn_sn_bridge_of_xlate;
+	pdata->gchip.of_gpio_n_cells = 2;
+	pdata->gchip.free = ti_sn_bridge_gpio_free;
+	pdata->gchip.get_direction = ti_sn_bridge_gpio_get_direction;
+	pdata->gchip.direction_input = ti_sn_bridge_gpio_direction_input;
+	pdata->gchip.direction_output = ti_sn_bridge_gpio_direction_output;
+	pdata->gchip.get = ti_sn_bridge_gpio_get;
+	pdata->gchip.set = ti_sn_bridge_gpio_set;
+	pdata->gchip.can_sleep = true;
+	pdata->gchip.names = ti_sn_bridge_gpio_names;
+	pdata->gchip.ngpio = SN_NUM_GPIOS;
+	ret = devm_gpiochip_add_data(pdata->dev, &pdata->gchip, pdata);
+	if (ret)
+		dev_err(pdata->dev, "can't add gpio chip\n");
+
+	return ret;
+}
+
 static int ti_sn_bridge_probe(struct i2c_client *client,
 			      const struct i2c_device_id *id)
 {
@@ -937,6 +1145,12 @@ static int ti_sn_bridge_probe(struct i2c_client *client,
 
 	pm_runtime_enable(pdata->dev);
 
+	ret = ti_sn_setup_gpio_controller(pdata);
+	if (ret) {
+		pm_runtime_disable(pdata->dev);
+		return ret;
+	}
+
 	i2c_set_clientdata(client, pdata);
 
 	pdata->aux.name = "ti-sn65dsi86-aux";
