[PATCH v10 13/18] drm: exynos: dsi: Add Exynos based host irq hooks

[Jagan Teki]

Enable and disable of te_gpio's are Exynos platform specific
irq handling, so add the exynos based irq operations and hook
them for exynos plat_data.

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
---
Changes for v10:
- split from previous series patch
"drm: bridge: Generalize Exynos-DSI driver into a Samsung DSIM bridge"

 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 55 +++++++++++++++++++++----
 1 file changed, 47 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 819131a36b96..580e06595b37 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -291,9 +291,15 @@ struct exynos_dsim_host_ops {
 	int (*detach)(struct exynos_dsi *dsim, struct mipi_dsi_device *device);
 };
 
+struct exynos_dsim_irq_ops {
+	void (*enable)(struct exynos_dsi *dsim);
+	void (*disable)(struct exynos_dsi *dsim);
+};
+
 struct exynos_dsi_plat_data {
 	enum exynos_dsi_type hw_type;
 	const struct exynos_dsim_host_ops *host_ops;
+	const struct exynos_dsim_irq_ops *irq_ops;
 };
 
 struct exynos_dsi {
@@ -308,7 +314,6 @@ struct exynos_dsi {
 	struct clk **clks;
 	struct regulator_bulk_data supplies[2];
 	int irq;
-	struct gpio_desc *te_gpio;
 
 	u32 pll_clk_rate;
 	u32 burst_clk_rate;
@@ -332,6 +337,7 @@ struct exynos_dsi {
 
 struct exynos_dsi_enc {
 	struct drm_encoder encoder;
+	struct gpio_desc *te_gpio;
 };
 
 #define host_to_dsi(host) container_of(host, struct exynos_dsi, dsi_host)
@@ -1345,18 +1351,38 @@ static irqreturn_t exynos_dsi_te_irq_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void exynos_dsi_enable_irq(struct exynos_dsi *dsi)
+static void _exynos_dsi_enable_irq(struct exynos_dsi *dsim)
 {
-	enable_irq(dsi->irq);
+	struct _exynos_dsi *dsi = dsim->priv;
 
 	if (dsi->te_gpio)
 		enable_irq(gpiod_to_irq(dsi->te_gpio));
 }
 
-static void exynos_dsi_disable_irq(struct exynos_dsi *dsi)
+static void _exynos_dsi_disable_irq(struct exynos_dsi *dsim)
 {
+	struct _exynos_dsi *dsi = dsim->priv;
+
 	if (dsi->te_gpio)
 		disable_irq(gpiod_to_irq(dsi->te_gpio));
+}
+
+static void exynos_dsi_enable_irq(struct exynos_dsi *dsi)
+{
+	const struct exynos_dsi_plat_data *pdata = dsi->plat_data;
+
+	enable_irq(dsi->irq);
+
+	if (pdata->irq_ops && pdata->irq_ops->enable)
+		pdata->irq_ops->enable(dsi);
+}
+
+static void exynos_dsi_disable_irq(struct exynos_dsi *dsi)
+{
+	const struct exynos_dsi_plat_data *pdata = dsi->plat_data;
+
+	if (pdata->irq_ops && pdata->irq_ops->disable)
+		pdata->irq_ops->disable(dsi);
 
 	disable_irq(dsi->irq);
 }
@@ -1385,9 +1411,10 @@ static int exynos_dsi_init(struct exynos_dsi *dsi)
 	return 0;
 }
 
-static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi,
+static int exynos_dsi_register_te_irq(struct exynos_dsi *dsim,
 				      struct device *panel)
 {
+	struct _exynos_dsi *dsi = dsim->priv;
 	int ret;
 	int te_gpio_irq;
 
@@ -1395,7 +1422,7 @@ static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi,
 	if (!dsi->te_gpio) {
 		return 0;
 	} else if (IS_ERR(dsi->te_gpio)) {
-		dev_err(dsi->dev, "gpio request failed with %ld\n",
+		dev_err(dsim->dev, "gpio request failed with %ld\n",
 				PTR_ERR(dsi->te_gpio));
 		return PTR_ERR(dsi->te_gpio);
 	}
@@ -1405,7 +1432,7 @@ static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi,
 	ret = request_threaded_irq(te_gpio_irq, exynos_dsi_te_irq_handler, NULL,
 				   IRQF_TRIGGER_RISING | IRQF_NO_AUTOEN, "TE", dsi);
 	if (ret) {
-		dev_err(dsi->dev, "request interrupt failed with %d\n", ret);
+		dev_err(dsim->dev, "request interrupt failed with %d\n", ret);
 		gpiod_put(dsi->te_gpio);
 		return ret;
 	}
@@ -1413,8 +1440,10 @@ static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi,
 	return 0;
 }
 
-static void exynos_dsi_unregister_te_irq(struct exynos_dsi *dsi)
+static void exynos_dsi_unregister_te_irq(struct exynos_dsi *dsim)
 {
+	struct _exynos_dsi *dsi = dsim->priv;
+
 	if (dsi->te_gpio) {
 		free_irq(gpiod_to_irq(dsi->te_gpio), dsi);
 		gpiod_put(dsi->te_gpio);
@@ -2035,6 +2064,11 @@ static const struct dev_pm_ops exynos_dsi_pm_ops = {
 				pm_runtime_force_resume)
 };
 
+static const struct exynos_dsim_irq_ops exynos_dsi_irq_ops = {
+	.enable = _exynos_dsi_enable_irq,
+	.disable = _exynos_dsi_disable_irq,
+};
+
 static const struct exynos_dsim_host_ops exynos_dsi_host_ops = {
 	.register_host = exynos_dsi_register_host,
 	.unregister_host = exynos_dsi_unregister_host,
@@ -2045,26 +2079,31 @@ static const struct exynos_dsim_host_ops exynos_dsi_host_ops = {
 static const struct exynos_dsi_plat_data exynos3250_dsi_pdata = {
 	.hw_type = DSIM_TYPE_EXYNOS3250,
 	.host_ops = &exynos_dsi_host_ops,
+	.irq_ops = &exynos_dsi_irq_ops,
 };
 
 static const struct exynos_dsi_plat_data exynos4210_dsi_pdata = {
 	.hw_type = DSIM_TYPE_EXYNOS4210,
 	.host_ops = &exynos_dsi_host_ops,
+	.irq_ops = &exynos_dsi_irq_ops,
 };
 
 static const struct exynos_dsi_plat_data exynos5410_dsi_pdata = {
 	.hw_type = DSIM_TYPE_EXYNOS5410,
 	.host_ops = &exynos_dsi_host_ops,
+	.irq_ops = &exynos_dsi_irq_ops,
 };
 
 static const struct exynos_dsi_plat_data exynos5422_dsi_pdata = {
 	.hw_type = DSIM_TYPE_EXYNOS5422,
 	.host_ops = &exynos_dsi_host_ops,
+	.irq_ops = &exynos_dsi_irq_ops,
 };
 
 static const struct exynos_dsi_plat_data exynos5433_dsi_pdata = {
 	.hw_type = DSIM_TYPE_EXYNOS5433,
 	.host_ops = &exynos_dsi_host_ops,
+	.irq_ops = &exynos_dsi_irq_ops,
 };
 
 static const struct of_device_id exynos_dsi_of_match[] = {
-- 
2.25.1