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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2020-02-26 13:24:50 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2020-02-26 13:31:54 +0200 |
| commit | 1edc1a1cbe7f5b5692267cdcf227528c2f39f198 (patch) | |
| tree | 981225889cf45497bd95cc964d46d0718c980d88 /drivers/gpu/drm/omapdrm/dss/hdmi5_core.h | |
| parent | a4659694a7e5dd9bfaa07f14ecd5d9e903ae0a0b (diff) | |
| download | linux-1edc1a1cbe7f5b5692267cdcf227528c2f39f198.tar.bz2 | |
drm/omap: hdmi5: Rework EDID read to isolate data read
In preparation of adding DRM bridge support to the hdmi5 encoder code,
rework the EDID read to isolate data read.
The hdmi_read_edid() function is the main entry point. It performs all
initialisation steps required prior to reading the EDID (such as
ensuring the device is powered on), as well as corresponding cleanup
steps afterwards. EDID read itself is handled by hdmi_read_edid_data()
that calls the hdmi5_core_ddc_read() function to read individual blocks.
This new code architecture will allow reusing hdmi_read_edid() and
hdmi5_core_ddc_read() for the drm_bridge EDID read implementation, while
swapping out hdmi_read_edid_data() for the DRM drm_do_get_edid()
function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-31-laurent.pinchart@ideasonboard.com
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/hdmi5_core.h')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/hdmi5_core.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h b/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h index f10b8a283011..65eadefdb3f9 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5_core.h @@ -281,7 +281,10 @@ struct csc_table { u16 c1, c2, c3, c4; }; -int hdmi5_read_edid(struct hdmi_core_data *core, u8 *edid, int len); +void hdmi5_core_ddc_init(struct hdmi_core_data *core); +int hdmi5_core_ddc_read(void *data, u8 *buf, unsigned int block, size_t len); +void hdmi5_core_ddc_uninit(struct hdmi_core_data *core); + void hdmi5_core_dump(struct hdmi_core_data *core, struct seq_file *s); int hdmi5_core_handle_irqs(struct hdmi_core_data *core); void hdmi5_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp, |