linux-kernel - [PATCH v2 4/7] drm/i915/dsi: Extract common soc_gpio

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Date:   Tue, 24 Oct 2023 18:57:36 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Jani Nikula <jani.nikula@...el.com>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Hans de Goede <hdegoede@...hat.com>
Subject: [PATCH v2 4/7] drm/i915/dsi: Extract common soc_gpio_exec() helper

Extract a common soc_gpio_exec() helper that may be used by a few SoCs.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 49 +++++++++++---------
 1 file changed, 27 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 1014051a6866..3fb85b6d320e 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -243,6 +243,32 @@ static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data)
 	return data;
 }
 
+static void soc_exec_gpio(struct intel_connector *connector, const char *con_id,
+			  u8 gpio_index, bool value)
+{
+	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+	/* XXX: this table is a quick ugly hack. */
+	static struct gpio_desc *soc_gpio_table[U8_MAX + 1];
+	struct gpio_desc *gpio_desc = soc_gpio_table[gpio_index];
+
+	if (gpio_desc) {
+		gpiod_set_value(gpio_desc, value);
+	} else {
+		gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
+						 con_id, gpio_index,
+						 value ? GPIOD_OUT_LOW :
+						 GPIOD_OUT_HIGH);
+		if (IS_ERR(gpio_desc)) {
+			drm_err(&dev_priv->drm,
+				"GPIO index %u request failed (%pe)\n",
+				gpio_index, gpio_desc);
+			return;
+		}
+
+		soc_gpio_table[gpio_index] = gpio_desc;
+	}
+}
+
 static void vlv_exec_gpio(struct intel_connector *connector,
 			  u8 gpio_source, u8 gpio_index, bool value)
 {
@@ -348,28 +374,7 @@ static void chv_exec_gpio(struct intel_connector *connector,
 static void bxt_exec_gpio(struct intel_connector *connector,
 			  u8 gpio_source, u8 gpio_index, bool value)
 {
-	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-	/* XXX: this table is a quick ugly hack. */
-	static struct gpio_desc *bxt_gpio_table[U8_MAX + 1];
-	struct gpio_desc *gpio_desc = bxt_gpio_table[gpio_index];
-
-	if (!gpio_desc) {
-		gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
-						 NULL, gpio_index,
-						 value ? GPIOD_OUT_LOW :
-						 GPIOD_OUT_HIGH);
-
-		if (IS_ERR_OR_NULL(gpio_desc)) {
-			drm_err(&dev_priv->drm,
-				"GPIO index %u request failed (%ld)\n",
-				gpio_index, PTR_ERR(gpio_desc));
-			return;
-		}
-
-		bxt_gpio_table[gpio_index] = gpio_desc;
-	}
-
-	gpiod_set_value(gpio_desc, value);
+	soc_exec_gpio(connector, NULL, gpio_index, value);
 }
 
 static void icl_exec_gpio(struct intel_connector *connector,
-- 
2.40.0.1.gaa8946217a0b