drm/panel: mantix: Allow to specify default mode for different panels

This can be used to use different modes for differnt panels via OF
device match.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/2580dba34c95a8159c1bdfd07604fbb8dbd0ad8c.1605688147.git.agx@sigxcpu.org

diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
index 624d17b..b057857 100644 (file)
--- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
+++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
@@ -9,6 +9,7 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/regulator/consumer.h>
 
 #include <video/mipi_display.h>
@@ -34,6 +35,8 @@ struct mantix {
        struct regulator *avdd;
        struct regulator *avee;
        struct regulator *vddi;
+
+       const struct drm_display_mode *default_mode;
 };
 
 static inline struct mantix *panel_to_mantix(struct drm_panel *panel)
@@ -187,7 +190,7 @@ static int mantix_prepare(struct drm_panel *panel)
        return 0;
 }
 
-static const struct drm_display_mode default_mode = {
+static const struct drm_display_mode default_mode_mantix = {
        .hdisplay    = 720,
        .hsync_start = 720 + 45,
        .hsync_end   = 720 + 45 + 14,
@@ -208,11 +211,11 @@ static int mantix_get_modes(struct drm_panel *panel,
        struct mantix *ctx = panel_to_mantix(panel);
        struct drm_display_mode *mode;
 
-       mode = drm_mode_duplicate(connector->dev, &default_mode);
+       mode = drm_mode_duplicate(connector->dev, ctx->default_mode);
        if (!mode) {
                dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",
-                       default_mode.hdisplay, default_mode.vdisplay,
-                       drm_mode_vrefresh(&default_mode));
+                       ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,
+                       drm_mode_vrefresh(ctx->default_mode));
                return -ENOMEM;
        }
 
@@ -243,6 +246,7 @@ static int mantix_probe(struct mipi_dsi_device *dsi)
        ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
        if (!ctx)
                return -ENOMEM;
+       ctx->default_mode = of_device_get_match_data(dev);
 
        ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
        if (IS_ERR(ctx->reset_gpio)) {
@@ -293,8 +297,8 @@ static int mantix_probe(struct mipi_dsi_device *dsi)
        }
 
        dev_info(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",
-                default_mode.hdisplay, default_mode.vdisplay,
-                drm_mode_vrefresh(&default_mode),
+                ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,
+                drm_mode_vrefresh(ctx->default_mode),
                 mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
 
        return 0;
@@ -321,7 +325,7 @@ static int mantix_remove(struct mipi_dsi_device *dsi)
 }
 
 static const struct of_device_id mantix_of_match[] = {
-       { .compatible = "mantix,mlaf057we51-x" },
+       { .compatible = "mantix,mlaf057we51-x", .data = &default_mode_mantix },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, mantix_of_match);