[PATCH v2 18/27] drm/rockchip: inno_hdmi: Subclass connector state

[Alex Bee <knaerzche@gmail.com>]

The data which is currently hold in hdmi_data should not be part of device
itself but of the connector state.
Introduce a connector state subclass and move the data from hdmi_data in
there.

Suggested-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
changes in v2:
 - new patch

 drivers/gpu/drm/rockchip/inno_hdmi.c | 67 +++++++++++++++++++++-------
 1 file changed, 50 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 62c7e2275246..f9bfae1e97a2 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -26,11 +26,6 @@
 
 #include "inno_hdmi.h"
 
-struct hdmi_data_info {
-	unsigned int enc_out_format;
-	unsigned int colorimetry;
-};
-
 struct inno_hdmi_i2c {
 	struct i2c_adapter adap;
 
@@ -54,8 +49,12 @@ struct inno_hdmi {
 	struct i2c_adapter *ddc;
 
 	unsigned int tmds_rate;
+};
 
-	struct hdmi_data_info	hdmi_data;
+struct inno_hdmi_connector_state {
+	struct drm_connector_state	base;
+	unsigned int			enc_out_format;
+	unsigned int			colorimetry;
 };
 
 static struct inno_hdmi *encoder_to_inno_hdmi(struct drm_encoder *encoder)
@@ -70,6 +69,9 @@ static struct inno_hdmi *connector_to_inno_hdmi(struct drm_connector *connector)
 	return container_of(connector, struct inno_hdmi, connector);
 }
 
+#define to_inno_hdmi_conn_state(_state) \
+	container_of_const(_state, struct inno_hdmi_connector_state, base)
+
 enum {
 	CSC_RGB_0_255_TO_ITU601_16_235_8BIT,
 	CSC_RGB_0_255_TO_ITU709_16_235_8BIT,
@@ -248,6 +250,10 @@ static int inno_hdmi_upload_frame(struct inno_hdmi *hdmi,
 static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi,
 				      struct drm_display_mode *mode)
 {
+	struct drm_connector *connector = &hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	struct inno_hdmi_connector_state *inno_conn_state =
+					to_inno_hdmi_conn_state(conn_state);
 	union hdmi_infoframe frame;
 	int rc;
 
@@ -259,9 +265,9 @@ static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi,
 		return rc;
 	}
 
-	if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
+	if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444)
 		frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
-	else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422)
+	else if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV422)
 		frame.avi.colorspace = HDMI_COLORSPACE_YUV422;
 	else
 		frame.avi.colorspace = HDMI_COLORSPACE_RGB;
@@ -271,7 +277,10 @@ static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi,
 
 static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
 {
-	struct hdmi_data_info *data = &hdmi->hdmi_data;
+	struct drm_connector *connector = &hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	struct inno_hdmi_connector_state *inno_conn_state =
+					to_inno_hdmi_conn_state(conn_state);
 	int c0_c2_change = 0;
 	int csc_enable = 0;
 	int csc_mode = 0;
@@ -289,7 +298,7 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
 		v_VIDEO_INPUT_CSP(0);
 	hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL2, value);
 
-	if (data->enc_out_format == HDMI_COLORSPACE_RGB) {
+	if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_RGB) {
 		value = v_SOF_DISABLE | v_COLOR_DEPTH_NOT_INDICATED(1);
 		hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
 
@@ -300,15 +309,15 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
 		return 0;
 	}
 
-	if (data->colorimetry == HDMI_COLORIMETRY_ITU_601) {
-		if (data->enc_out_format == HDMI_COLORSPACE_YUV444) {
+	if (inno_conn_state->colorimetry == HDMI_COLORIMETRY_ITU_601) {
+		if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) {
 			csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT;
 			auto_csc = AUTO_CSC_DISABLE;
 			c0_c2_change = C0_C2_CHANGE_DISABLE;
 			csc_enable = v_CSC_ENABLE;
 		}
 	} else {
-		if (data->enc_out_format == HDMI_COLORSPACE_YUV444) {
+		if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) {
 			csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT;
 			auto_csc = AUTO_CSC_DISABLE;
 			c0_c2_change = C0_C2_CHANGE_DISABLE;
@@ -386,16 +395,20 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
 {
 	struct drm_display_info *display = &hdmi->connector.display_info;
 	u8 vic = drm_match_cea_mode(mode);
+	struct drm_connector *connector = &hdmi->connector;
+	struct drm_connector_state *conn_state = connector->state;
+	struct inno_hdmi_connector_state *inno_conn_state =
+					to_inno_hdmi_conn_state(conn_state);
 
-	hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB;
+	inno_conn_state->enc_out_format = HDMI_COLORSPACE_RGB;
 
 	if (vic == 6 || vic == 7 ||
 	    vic == 21 || vic == 22 ||
 	    vic == 2 || vic == 3 ||
 	    vic == 17 || vic == 18)
-		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
+		inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_601;
 	else
-		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
+		inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_709;
 
 	/* Mute video and audio output */
 	hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
@@ -522,12 +535,32 @@ static void inno_hdmi_connector_destroy(struct drm_connector *connector)
 	drm_connector_cleanup(connector);
 }
 
+static struct drm_connector_state *
+inno_hdmi_connector_duplicate_state(struct drm_connector *connector)
+{
+	struct inno_hdmi_connector_state *inno_conn_state;
+
+	if (WARN_ON(!connector->state))
+		return NULL;
+
+	inno_conn_state = kmemdup(to_inno_hdmi_conn_state(connector->state),
+				  sizeof(*inno_conn_state), GFP_KERNEL);
+
+	if (!inno_conn_state)
+		return NULL;
+
+	__drm_atomic_helper_connector_duplicate_state(connector,
+						      &inno_conn_state->base);
+
+	return &inno_conn_state->base;
+}
+
 static const struct drm_connector_funcs inno_hdmi_connector_funcs = {
 	.fill_modes = inno_hdmi_probe_single_connector_modes,
 	.detect = inno_hdmi_connector_detect,
 	.destroy = inno_hdmi_connector_destroy,
 	.reset = drm_atomic_helper_connector_reset,
-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_duplicate_state = inno_hdmi_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
-- 
2.43.0