[PATCH 09/11] drm/tegra: convert to struct drm_edid

[Jani Nikula]

Prefer the struct drm_edid based functions for reading the EDID and
updating the connector.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>

---

Cc: Thierry Reding <thierry.red...@gmail.com>
Cc: Mikko Perttunen <mperttu...@nvidia.com>
Cc: Jonathan Hunter <jonath...@nvidia.com>
Cc: linux-te...@vger.kernel.org
---
 drivers/gpu/drm/tegra/drm.h    |  2 +-
 drivers/gpu/drm/tegra/output.c | 29 +++++++++++++++++------------
 2 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 682011166a8f..2f3781e04b0a 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -133,7 +133,7 @@ struct tegra_output {
        struct drm_bridge *bridge;
        struct drm_panel *panel;
        struct i2c_adapter *ddc;
-       const struct edid *edid;
+       const struct drm_edid *drm_edid;
        struct cec_notifier *cec;
        unsigned int hpd_irq;
        struct gpio_desc *hpd_gpio;
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index 4da3c3d1abbc..e6b5863fec71 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -21,7 +21,7 @@
 int tegra_output_connector_get_modes(struct drm_connector *connector)
 {
        struct tegra_output *output = connector_to_output(connector);
-       struct edid *edid = NULL;
+       const struct drm_edid *drm_edid;
        int err = 0;
 
        /*
@@ -34,18 +34,17 @@ int tegra_output_connector_get_modes(struct drm_connector 
*connector)
                        return err;
        }
 
-       if (output->edid)
-               edid = kmemdup(output->edid, sizeof(*edid), GFP_KERNEL);
+       if (output->drm_edid)
+               drm_edid = drm_edid_dup(output->drm_edid);
        else if (output->ddc)
-               edid = drm_get_edid(connector, output->ddc);
+               drm_edid = drm_edid_read_ddc(connector, output->ddc);
 
-       cec_notifier_set_phys_addr_from_edid(output->cec, edid);
-       drm_connector_update_edid_property(connector, edid);
+       drm_edid_connector_update(connector, drm_edid);
+       cec_notifier_set_phys_addr(output->cec,
+                                  
connector->display_info.source_physical_address);
 
-       if (edid) {
-               err = drm_add_edid_modes(connector, edid);
-               kfree(edid);
-       }
+       err = drm_edid_connector_add_modes(connector);
+       drm_edid_free(drm_edid);
 
        return err;
 }
@@ -98,6 +97,7 @@ static irqreturn_t hpd_irq(int irq, void *data)
 int tegra_output_probe(struct tegra_output *output)
 {
        struct device_node *ddc, *panel;
+       const void *edid;
        unsigned long flags;
        int err, size;
 
@@ -124,8 +124,6 @@ int tegra_output_probe(struct tegra_output *output)
                        return PTR_ERR(output->panel);
        }
 
-       output->edid = of_get_property(output->of_node, "nvidia,edid", &size);
-
        ddc = of_parse_phandle(output->of_node, "nvidia,ddc-i2c-bus", 0);
        if (ddc) {
                output->ddc = of_get_i2c_adapter_by_node(ddc);
@@ -137,6 +135,9 @@ int tegra_output_probe(struct tegra_output *output)
                }
        }
 
+       edid = of_get_property(output->of_node, "nvidia,edid", &size);
+       output->drm_edid = drm_edid_alloc(edid, size);
+
        output->hpd_gpio = devm_fwnode_gpiod_get(output->dev,
                                        of_fwnode_handle(output->of_node),
                                        "nvidia,hpd",
@@ -187,6 +188,8 @@ int tegra_output_probe(struct tegra_output *output)
        if (output->ddc)
                i2c_put_adapter(output->ddc);
 
+       drm_edid_free(output->drm_edid);
+
        return err;
 }
 
@@ -197,6 +200,8 @@ void tegra_output_remove(struct tegra_output *output)
 
        if (output->ddc)
                i2c_put_adapter(output->ddc);
+
+       drm_edid_free(output->drm_edid);
 }
 
 int tegra_output_init(struct drm_device *drm, struct tegra_output *output)
-- 
2.39.2