xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/bridge: adv7533: Initial support for ADV7533

Browse Source 
ADV7533 is a DSI to HDMI encoder chip. It is a derivative of ADV7511,
with additional blocks to translate input DSI data to parallel RGB
data. Besides the ADV7511 I2C register map, it has additional registers
that require to be configured to activate the DSI Rx block.

Create a new config that enables ADV7533 support. Use DT compatible
strings to populate the ADV7533 type enum. Add minimal register
configurations belonging to the DSI/CEC register map. Keep the ADV7533
code in a separate file.

Originally worked on by Lars-Peter Clausen <lars@metafoo.de>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
This commit is contained in:
Archit Taneja
2016-06-15 16:24:03 +05:30
parent f0bfcc22d9
commit 2437e7cd88
5 changed files with 230 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
drivers/gpu/drm/bridge/adv7511/adv7511.h
View File

@@ -10,6 +10,10 @@
#define __DRM_I2C_ADV7511_H__
#include <linux/hdmi.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <drm/drm_crtc_helper.h>
#define ADV7511_REG_CHIP_REVISION 0x00
#define ADV7511_REG_N0 0x01
@@ -286,4 +290,71 @@ struct adv7511_video_config {
struct hdmi_avi_infoframe avi_infoframe;
};
enum adv7511_type {
ADV7511,
ADV7533,
};
struct adv7511 {
struct i2c_client *i2c_main;
struct i2c_client *i2c_edid;
struct i2c_client *i2c_cec;
struct regmap *regmap;
struct regmap *regmap_cec;
enum drm_connector_status status;
bool powered;
unsigned int f_tmds;
unsigned int current_edid_segment;
uint8_t edid_buf[256];
bool edid_read;
wait_queue_head_t wq;
struct drm_bridge bridge;
struct drm_connector connector;
bool embedded_sync;
enum adv7511_sync_polarity vsync_polarity;
enum adv7511_sync_polarity hsync_polarity;
bool rgb;
struct edid *edid;
struct gpio_desc *gpio_pd;
enum adv7511_type type;
};
#ifdef CONFIG_DRM_I2C_ADV7533
void adv7533_dsi_power_on(struct adv7511 *adv);
void adv7533_dsi_power_off(struct adv7511 *adv);
int adv7533_patch_registers(struct adv7511 *adv);
void adv7533_uninit_cec(struct adv7511 *adv);
int adv7533_init_cec(struct adv7511 *adv);
#else
static inline void adv7533_dsi_power_on(struct adv7511 *adv)
{
}
static inline void adv7533_dsi_power_off(struct adv7511 *adv)
{
}
static inline int adv7533_patch_registers(struct adv7511 *adv)
{
return -ENODEV;
}
static inline void adv7533_uninit_cec(struct adv7511 *adv)
{
}
static inline int adv7533_init_cec(struct adv7511 *adv)
{
return -ENODEV;
}
#endif
#endif /* __DRM_I2C_ADV7511_H__ */