[PATCH] drm/sun4i: Constify static structs

From: Rikard Falkeborn
Date: Tue Aug 04 2020 - 17:53:50 EST

A number of static variables are not modified and can be made const to
allow the compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
---
Perhaps it should be split up? If so, some guidance on how would be
appreciated.

drivers/gpu/drm/sun4i/sun4i_backend.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_framebuffer.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_frontend.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_lvds.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_rgb.c | 4 ++--
drivers/gpu/drm/sun4i/sun4i_tcon.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_tv.c | 6 +++---
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 2 +-
drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 2 +-
drivers/gpu/drm/sun4i/sun8i_mixer.c | 2 +-
drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 2 +-
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 2 +-
12 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
index 072ea113e6be..f025534eb30c 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -769,7 +769,7 @@ static const struct sunxi_engine_ops sun4i_backend_engine_ops = {
.vblank_quirk = sun4i_backend_vblank_quirk,
};

-static struct regmap_config sun4i_backend_regmap_config = {
+static const struct regmap_config sun4i_backend_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
diff --git a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
index 1568f68f9a9e..6825ef46f43f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
@@ -35,7 +35,7 @@ static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
};

-static struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
+static const struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
};

diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index ec2a032e07b9..b51cc685c13a 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -545,7 +545,7 @@ int sun4i_frontend_enable(struct sun4i_frontend *frontend)
}
EXPORT_SYMBOL(sun4i_frontend_enable);

-static struct regmap_config sun4i_frontend_regmap_config = {
+static const struct regmap_config sun4i_frontend_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
diff --git a/drivers/gpu/drm/sun4i/sun4i_lvds.c b/drivers/gpu/drm/sun4i/sun4i_lvds.c
index ffda3184aa12..ea430b0ab0f3 100644
--- a/drivers/gpu/drm/sun4i/sun4i_lvds.c
+++ b/drivers/gpu/drm/sun4i/sun4i_lvds.c
@@ -47,7 +47,7 @@ static int sun4i_lvds_get_modes(struct drm_connector *connector)
return drm_panel_get_modes(lvds->panel, connector);
}

-static struct drm_connector_helper_funcs sun4i_lvds_con_helper_funcs = {
+static const struct drm_connector_helper_funcs sun4i_lvds_con_helper_funcs = {
.get_modes = sun4i_lvds_get_modes,
};

diff --git a/drivers/gpu/drm/sun4i/sun4i_rgb.c b/drivers/gpu/drm/sun4i/sun4i_rgb.c
index 5a7d43939ae6..20a49c1963cc 100644
--- a/drivers/gpu/drm/sun4i/sun4i_rgb.c
+++ b/drivers/gpu/drm/sun4i/sun4i_rgb.c
@@ -138,7 +138,7 @@ static enum drm_mode_status sun4i_rgb_mode_valid(struct drm_encoder *crtc,
return MODE_OK;
}

-static struct drm_connector_helper_funcs sun4i_rgb_con_helper_funcs = {
+static const struct drm_connector_helper_funcs sun4i_rgb_con_helper_funcs = {
.get_modes = sun4i_rgb_get_modes,
};

@@ -183,7 +183,7 @@ static void sun4i_rgb_encoder_disable(struct drm_encoder *encoder)
}
}

-static struct drm_encoder_helper_funcs sun4i_rgb_enc_helper_funcs = {
+static const struct drm_encoder_helper_funcs sun4i_rgb_enc_helper_funcs = {
.disable = sun4i_rgb_encoder_disable,
.enable = sun4i_rgb_encoder_enable,
.mode_valid = sun4i_rgb_mode_valid,
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 359b56e43b83..ae177b2bcf4b 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -825,7 +825,7 @@ static int sun4i_tcon_init_irq(struct device *dev,
return 0;
}

-static struct regmap_config sun4i_tcon_regmap_config = {
+static const struct regmap_config sun4i_tcon_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c
index 63f4428ac3bf..cb91bc11a0c7 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tv.c
@@ -468,7 +468,7 @@ static void sun4i_tv_mode_set(struct drm_encoder *encoder,
regmap_write(tv->regs, SUN4I_TVE_SLAVE_REG, 0);
}

-static struct drm_encoder_helper_funcs sun4i_tv_helper_funcs = {
+static const struct drm_encoder_helper_funcs sun4i_tv_helper_funcs = {
.disable = sun4i_tv_disable,
.enable = sun4i_tv_enable,
.mode_set = sun4i_tv_mode_set,
@@ -504,7 +504,7 @@ static int sun4i_tv_comp_mode_valid(struct drm_connector *connector,
return MODE_OK;
}

-static struct drm_connector_helper_funcs sun4i_tv_comp_connector_helper_funcs = {
+static const struct drm_connector_helper_funcs sun4i_tv_comp_connector_helper_funcs = {
.get_modes = sun4i_tv_comp_get_modes,
.mode_valid = sun4i_tv_comp_mode_valid,
};
@@ -523,7 +523,7 @@ static const struct drm_connector_funcs sun4i_tv_comp_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};

-static struct regmap_config sun4i_tv_regmap_config = {
+static const struct regmap_config sun4i_tv_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index aa67cb037e9d..76822c6902c0 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -820,7 +820,7 @@ static int sun6i_dsi_get_modes(struct drm_connector *connector)
return drm_panel_get_modes(dsi->panel, connector);
}

-static struct drm_connector_helper_funcs sun6i_dsi_connector_helper_funcs = {
+static const struct drm_connector_helper_funcs sun6i_dsi_connector_helper_funcs = {
.get_modes = sun6i_dsi_get_modes,
};

diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
index 156d00e5165b..35c2133724e2 100644
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
@@ -534,7 +534,7 @@ void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
}
}

-static struct regmap_config sun8i_hdmi_phy_regmap_config = {
+static const struct regmap_config sun8i_hdmi_phy_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index cc4fb916318f..4b59806b30df 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -303,7 +303,7 @@ static const struct sunxi_engine_ops sun8i_engine_ops = {
.layers_init = sun8i_layers_init,
};

-static struct regmap_config sun8i_mixer_regmap_config = {
+static const struct regmap_config sun8i_mixer_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index 54f937a7d5e7..816ad4ce8996 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -298,7 +298,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
true, zpos, old_zpos);
}

-static struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = {
+static const struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = {
.prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = sun8i_ui_layer_atomic_check,
.atomic_disable = sun8i_ui_layer_atomic_disable,
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 22c8c5375d0d..a360697a4a4a 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -401,7 +401,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
true, zpos, old_zpos);
}

-static struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
+static const struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
.prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = sun8i_vi_layer_atomic_check,
.atomic_disable = sun8i_vi_layer_atomic_disable,
--
2.28.0