drm/i915/display: Clean up zero initializers

Just use a simple {} to zero initialize arrays/structs instead
of the hodgepodge of stuff we are using currently.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231012122442.15718-2-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/display/intel_acpi.c

@@ -153,7 +153,7 @@ static acpi_handle intel_dsm_pci_probe(struct pci_dev *pdev)
 static bool intel_dsm_detect(void)
 {
 	acpi_handle dhandle = NULL;
-	char acpi_method_name[255] = { 0 };
+	char acpi_method_name[255] = {};
 	struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name};
 	struct pci_dev *pdev = NULL;
 	int vga_count = 0;

drivers/gpu/drm/i915/display/intel_cx0_phy.c

@@ -3009,7 +3009,7 @@ void intel_c10pll_state_verify(struct intel_atomic_state *state,
 	struct drm_i915_private *i915 = to_i915(state->base.dev);
 	const struct intel_crtc_state *new_crtc_state =
 		intel_atomic_get_new_crtc_state(state, crtc);
-	struct intel_c10pll_state mpllb_hw_state = { 0 };
+	struct intel_c10pll_state mpllb_hw_state = {};
 	const struct intel_c10pll_state *mpllb_sw_state = &new_crtc_state->cx0pll_state.c10;
 	struct intel_encoder *encoder;
 	enum phy phy;

drivers/gpu/drm/i915/display/intel_dp.c

@@ -1583,7 +1583,7 @@ int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector,
 {
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
 	int i, num_bpc;
-	u8 dsc_bpc[3] = {0};
+	u8 dsc_bpc[3] = {};
 	u8 dsc_max_bpc;
 
 	dsc_max_bpc = intel_dp_dsc_max_src_input_bpc(i915);
@@ -2006,7 +2006,7 @@ static int intel_dp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
 	u8 max_req_bpc = conn_state->max_requested_bpc;
 	u8 dsc_max_bpc, dsc_max_bpp;
 	u8 dsc_min_bpc, dsc_min_bpp;
-	u8 dsc_bpc[3] = {0};
+	u8 dsc_bpc[3] = {};
 	int forced_bpp, pipe_bpp;
 	int num_bpc, i, ret;
 
@@ -2940,7 +2940,7 @@ intel_edp_init_source_oui(struct intel_dp *intel_dp, bool careful)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	u8 oui[] = { 0x00, 0xaa, 0x01 };
-	u8 buf[3] = { 0 };
+	u8 buf[3] = {};
 
 	/*
 	 * During driver init, we want to be careful and avoid changing the source OUI if it's

drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c

@@ -169,7 +169,7 @@ intel_dp_aux_hdr_get_backlight(struct intel_connector *connector, enum pipe pipe
 	struct intel_panel *panel = &connector->panel;
 	struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
 	u8 tmp;
-	u8 buf[2] = { 0 };
+	u8 buf[2] = {};
 
 	if (drm_dp_dpcd_readb(&intel_dp->aux, INTEL_EDP_HDR_GETSET_CTRL_PARAMS, &tmp) != 1) {
 		drm_err(&i915->drm, "[CONNECTOR:%d:%s] Failed to read current backlight mode from DPCD\n",
@@ -204,7 +204,7 @@ intel_dp_aux_hdr_set_aux_backlight(const struct drm_connector_state *conn_state,
 	struct intel_connector *connector = to_intel_connector(conn_state->connector);
 	struct drm_device *dev = connector->base.dev;
 	struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
-	u8 buf[4] = { 0 };
+	u8 buf[4] = {};
 
 	buf[0] = level & 0xFF;
 	buf[1] = (level & 0xFF00) >> 8;

drivers/gpu/drm/i915/display/intel_dp_mst.c

@@ -192,7 +192,7 @@ static int intel_dp_dsc_mst_compute_link_config(struct intel_encoder *encoder,
 		&crtc_state->hw.adjusted_mode;
 	int slots = -EINVAL;
 	int i, num_bpc;
-	u8 dsc_bpc[3] = {0};
+	u8 dsc_bpc[3] = {};
 	int min_bpp, max_bpp, sink_min_bpp, sink_max_bpp;
 	u8 dsc_max_bpc;
 	bool need_timeslot_recalc = false;

drivers/gpu/drm/i915/display/intel_gmbus.c

@@ -781,7 +781,7 @@ int intel_gmbus_output_aksv(struct i2c_adapter *adapter)
 	struct intel_gmbus *bus = to_intel_gmbus(adapter);
 	struct drm_i915_private *i915 = bus->i915;
 	u8 cmd = DRM_HDCP_DDC_AKSV;
-	u8 buf[DRM_HDCP_KSV_LEN] = { 0 };
+	u8 buf[DRM_HDCP_KSV_LEN] = {};
 	struct i2c_msg msgs[] = {
 		{
 			.addr = DRM_HDCP_DDC_ADDR,

drivers/gpu/drm/i915/display/intel_plane_initial.c

@@ -166,7 +166,7 @@ intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
 {
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+	struct drm_mode_fb_cmd2 mode_cmd = {};
 	struct drm_framebuffer *fb = &plane_config->fb->base;
 	struct i915_vma *vma;
 

drivers/gpu/drm/i915/display/intel_sdvo.c

@@ -649,7 +649,7 @@ intel_sdvo_get_value(struct intel_sdvo *intel_sdvo, u8 cmd, void *value, int len
 
 static bool intel_sdvo_set_target_input(struct intel_sdvo *intel_sdvo)
 {
-	struct intel_sdvo_set_target_input_args targets = {0};
+	struct intel_sdvo_set_target_input_args targets = {};
 	return intel_sdvo_set_value(intel_sdvo,
 				    SDVO_CMD_SET_TARGET_INPUT,
 				    &targets, sizeof(targets));

drivers/gpu/drm/i915/display/intel_snps_phy.c

@@ -1998,7 +1998,7 @@ void intel_mpllb_state_verify(struct intel_atomic_state *state,
 	struct drm_i915_private *i915 = to_i915(state->base.dev);
 	const struct intel_crtc_state *new_crtc_state =
 		intel_atomic_get_new_crtc_state(state, crtc);
-	struct intel_mpllb_state mpllb_hw_state = { 0 };
+	struct intel_mpllb_state mpllb_hw_state = {};
 	const struct intel_mpllb_state *mpllb_sw_state = &new_crtc_state->mpllb_state;
 	struct intel_encoder *encoder;
 

drivers/gpu/drm/i915/display/intel_wm.c

@@ -290,7 +290,7 @@ static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
 {
 	struct seq_file *m = file->private_data;
 	struct drm_i915_private *dev_priv = m->private;
-	u16 new[8] = { 0 };
+	u16 new[8] = {};
 	int level;
 	int ret;
 	char tmp[32];