diff options
| author | Xinliang Liu <xinliang.liu@linaro.org> | 2015-11-23 10:43:36 +0800 |
|---|---|---|
| committer | Xinliang Liu <xinliang.liu@linaro.org> | 2016-04-29 16:39:14 +0800 |
| commit | 834480d23398b8f8d54c795e8ae8aea740106835 (patch) | |
| tree | c06b65a2b31235123386bd0f4ed10a9c465cab70 /drivers/gpu/drm/hisilicon | |
| parent | f819b0d4a91344c1bd0ec931f16faf491e867e59 (diff) | |
drm/hisilicon: Add designware dsi host driver
Add DesignWare dsi host driver for hi6220 SoC.
v8: None.
v7: None.
v6: None.
v5: None.
v4: None.
v3: None.
v2:
- Remove abtraction layer.
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Diffstat (limited to 'drivers/gpu/drm/hisilicon')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c index 1a930b77ec53..ea7711832959 100644 --- a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c +++ b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c @@ -80,6 +80,7 @@ struct dsi_hw_ctx { struct dw_dsi { struct drm_encoder encoder; + struct mipi_dsi_host host; struct drm_display_mode cur_mode; struct dsi_hw_ctx *ctx; struct mipi_phy_params phy; @@ -654,6 +655,51 @@ static int dw_drm_encoder_init(struct device *dev, return 0; } +static int dsi_host_attach(struct mipi_dsi_host *host, + struct mipi_dsi_device *mdsi) +{ + struct dw_dsi *dsi = host_to_dsi(host); + + if (mdsi->lanes < 1 || mdsi->lanes > 4) { + DRM_ERROR("dsi device params invalid\n"); + return -EINVAL; + } + + dsi->lanes = mdsi->lanes; + dsi->format = mdsi->format; + dsi->mode_flags = mdsi->mode_flags; + + return 0; +} + +static int dsi_host_detach(struct mipi_dsi_host *host, + struct mipi_dsi_device *mdsi) +{ + /* do nothing */ + return 0; +} + +static const struct mipi_dsi_host_ops dsi_host_ops = { + .attach = dsi_host_attach, + .detach = dsi_host_detach, +}; + +static int dsi_host_init(struct device *dev, struct dw_dsi *dsi) +{ + struct mipi_dsi_host *host = &dsi->host; + int ret; + + host->dev = dev; + host->ops = &dsi_host_ops; + ret = mipi_dsi_host_register(host); + if (ret) { + DRM_ERROR("failed to register dsi host\n"); + return ret; + } + + return 0; +} + static int dsi_bind(struct device *dev, struct device *master, void *data) { struct dsi_data *ddata = dev_get_drvdata(dev); @@ -665,6 +711,10 @@ static int dsi_bind(struct device *dev, struct device *master, void *data) if (ret) return ret; + ret = dsi_host_init(dev, dsi); + if (ret) + return ret; + return 0; } |