mirror of https://gitee.com/openkylin/linux.git
drm/omap: dsi: move panel refresh function to host
This moves the panel refresh/update function from the panel driver into the DSI host driver to prepare for common drm_panel support. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-30-tomi.valkeinen@ti.com
This commit is contained in:
Sebastian Reichel
Tomi Valkeinen
parent
66c6bf3af6
commit
2a4703c25f
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@ -172,27 +172,6 @@ static int dsicm_get_id(struct panel_drv_data *ddata, u8 *id1, u8 *id2, u8 *id3)
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return 0;
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}
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static int dsicm_set_update_window(struct panel_drv_data *ddata,
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u16 x, u16 y, u16 w, u16 h)
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{
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struct mipi_dsi_device *dsi = ddata->dsi;
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int r;
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u16 x1 = x;
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u16 x2 = x + w - 1;
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u16 y1 = y;
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u16 y2 = y + h - 1;
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r = mipi_dsi_dcs_set_column_address(dsi, x1, x2);
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if (r < 0)
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return r;
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r = mipi_dsi_dcs_set_page_address(dsi, y1, y2);
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if (r < 0)
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return r;
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return 0;
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}
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static int dsicm_bl_update_status(struct backlight_device *dev)
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{
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struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
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@ -466,48 +445,6 @@ static void dsicm_disable(struct omap_dss_device *dssdev)
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mutex_unlock(&ddata->lock);
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}
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static void dsicm_framedone_cb(int err, void *data)
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{
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struct panel_drv_data *ddata = data;
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dev_dbg(&ddata->dsi->dev, "framedone, err %d\n", err);
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}
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static int dsicm_update(struct omap_dss_device *dssdev,
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u16 x, u16 y, u16 w, u16 h)
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{
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struct panel_drv_data *ddata = to_panel_data(dssdev);
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struct omap_dss_device *src = ddata->src;
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int r;
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dev_dbg(&ddata->dsi->dev, "update %d, %d, %d x %d\n", x, y, w, h);
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mutex_lock(&ddata->lock);
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if (!ddata->enabled) {
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r = 0;
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goto err;
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}
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/* XXX no need to send this every frame, but dsi break if not done */
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r = dsicm_set_update_window(ddata, 0, 0, ddata->vm.hactive,
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ddata->vm.vactive);
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if (r)
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goto err;
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r = src->ops->dsi.update(src, ddata->dsi->channel, dsicm_framedone_cb,
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ddata);
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if (r)
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goto err;
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mutex_unlock(&ddata->lock);
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return 0;
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err:
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mutex_unlock(&ddata->lock);
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return r;
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}
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static int _dsicm_enable_te(struct panel_drv_data *ddata, bool enable)
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{
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struct mipi_dsi_device *dsi = ddata->dsi;
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@ -568,10 +505,6 @@ static const struct omap_dss_device_ops dsicm_ops = {
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.check_timings = dsicm_check_timings,
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};
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static const struct omap_dss_driver dsicm_dss_driver = {
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.update = dsicm_update,
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};
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static int dsicm_probe_of(struct mipi_dsi_device *dsi)
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{
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struct device_node *node = dsi->dev.of_node;
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@ -652,7 +585,6 @@ static int dsicm_probe(struct mipi_dsi_device *dsi)
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dssdev = &ddata->dssdev;
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dssdev->dev = dev;
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dssdev->ops = &dsicm_ops;
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dssdev->driver = &dsicm_dss_driver;
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dssdev->type = OMAP_DISPLAY_TYPE_DSI;
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dssdev->display = true;
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dssdev->owner = THIS_MODULE;
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@ -214,6 +214,9 @@ static void dsi_display_uninit_dispc(struct dsi_data *dsi);
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static int dsi_vc_send_null(struct dsi_data *dsi, int channel);
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static ssize_t _omap_dsi_host_transfer(struct dsi_data *dsi,
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const struct mipi_dsi_msg *msg);
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/* DSI PLL HSDIV indices */
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#define HSDIV_DISPC 0
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#define HSDIV_DSI 1
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@ -384,9 +387,6 @@ struct dsi_data {
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struct delayed_work ulps_work;
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void (*framedone_callback)(int, void *);
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void *framedone_data;
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struct delayed_work framedone_timeout_work;
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#ifdef DSI_CATCH_MISSING_TE
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@ -3804,8 +3804,6 @@ static void dsi_handle_framedone(struct dsi_data *dsi, int error)
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dsi_set_ulps_auto(dsi, true);
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dsi_bus_unlock(dsi);
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dsi->framedone_callback(error, dsi->framedone_data);
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if (!error)
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dsi_perf_show(dsi, "DISPC");
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}
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@ -3837,6 +3835,8 @@ static void dsi_framedone_irq_callback(void *data)
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cancel_delayed_work(&dsi->framedone_timeout_work);
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DSSDBG("Framedone received!\n");
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dsi_handle_framedone(dsi, 0);
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}
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@ -3853,17 +3853,69 @@ static int _dsi_update(struct dsi_data *dsi)
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return 0;
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}
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static int dsi_update(struct omap_dss_device *dssdev, int channel,
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void (*callback)(int, void *), void *data)
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static int _dsi_update_window(struct dsi_data *dsi, int channel,
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int x, int y, int w, int h)
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{
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int x1 = x, x2 = (x + w - 1);
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int y1 = y, y2 = (y + h - 1);
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u8 payloadX[5] = { MIPI_DCS_SET_COLUMN_ADDRESS,
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x1 >> 8, x1 & 0xff, x2 >> 8, x2 & 0xff };
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u8 payloadY[5] = { MIPI_DCS_SET_PAGE_ADDRESS,
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y1 >> 8, y1 & 0xff, y2 >> 8, y2 & 0xff };
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struct mipi_dsi_msg msgX = { 0 }, msgY = { 0 };
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int ret;
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WARN_ON(!dsi_bus_is_locked(dsi));
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msgX.type = MIPI_DSI_DCS_LONG_WRITE;
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msgX.channel = channel;
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msgX.tx_buf = payloadX;
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msgX.tx_len = sizeof(payloadX);
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msgY.type = MIPI_DSI_DCS_LONG_WRITE;
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msgY.channel = channel;
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msgY.tx_buf = payloadY;
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msgY.tx_len = sizeof(payloadY);
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ret = _omap_dsi_host_transfer(dsi, &msgX);
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if (ret != 0)
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return ret;
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return _omap_dsi_host_transfer(dsi, &msgY);
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}
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static int dsi_update_channel(struct omap_dss_device *dssdev, int channel)
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{
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struct dsi_data *dsi = to_dsi_data(dssdev);
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int r;
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if (channel > 3)
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return -EINVAL;
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dsi_bus_lock(dsi);
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if (!dsi->vc[channel].dest) {
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r = -ENODEV;
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goto err;
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}
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if (dsi->vm.hactive == 0 || dsi->vm.vactive == 0) {
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r = -EINVAL;
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goto err;
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}
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DSSDBG("dsi_update_channel: %d", channel);
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dsi_set_ulps_auto(dsi, false);
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r = _dsi_update_window(dsi, channel, 0, 0, dsi->vm.hactive,
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dsi->vm.vactive);
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if (r < 0) {
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DSSWARN("window update error: %d\n", r);
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goto err;
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}
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dsi->update_channel = channel;
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dsi->framedone_callback = callback;
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dsi->framedone_data = data;
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if (dsi->te_enabled && dsi->te_gpio) {
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schedule_delayed_work(&dsi->te_timeout_work,
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@ -3874,6 +3926,25 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel,
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}
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return 0;
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err:
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dsi_set_ulps_auto(dsi, true);
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dsi_bus_unlock(dsi);
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return r;
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}
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static int dsi_update_all(struct omap_dss_device *dssdev)
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{
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unsigned int i;
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int r;
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for (i = 0; i < 4; i++) {
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r = dsi_update_channel(dssdev, i);
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if (r && r != -ENODEV)
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return r;
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}
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return r;
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}
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/* Display funcs */
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@ -4875,7 +4946,7 @@ static const struct omap_dss_device_ops dsi_ops = {
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.enable_video_output = dsi_enable_video_output,
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.disable_video_output = dsi_disable_video_output,
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.update = dsi_update,
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.update = dsi_update_all,
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},
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};
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@ -284,13 +284,12 @@ struct omap_dss_writeback_info {
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};
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struct omapdss_dsi_ops {
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/* bus configuration */
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int (*update)(struct omap_dss_device *dssdev);
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/* legacy API used by omapdss panels */
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int (*set_config)(struct omap_dss_device *dssdev,
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const struct omap_dss_dsi_config *cfg);
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int (*update)(struct omap_dss_device *dssdev, int channel,
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void (*callback)(int, void *), void *data);
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int (*enable_video_output)(struct omap_dss_device *dssdev, int channel);
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void (*disable_video_output)(struct omap_dss_device *dssdev,
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int channel);
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@ -354,7 +353,6 @@ struct omap_dss_device {
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const char *name;
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const struct omap_dss_driver *driver;
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const struct omap_dss_device_ops *ops;
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unsigned long ops_flags;
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u32 bus_flags;
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@ -375,11 +373,6 @@ struct omap_dss_device {
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unsigned int of_port;
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};
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struct omap_dss_driver {
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int (*update)(struct omap_dss_device *dssdev,
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u16 x, u16 y, u16 w, u16 h);
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};
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struct dss_device *omapdss_get_dss(void);
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void omapdss_set_dss(struct dss_device *dss);
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static inline bool omapdss_is_initialized(void)
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@ -362,10 +362,8 @@ static void omap_crtc_manual_display_update(struct work_struct *data)
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{
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struct omap_crtc *omap_crtc =
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container_of(data, struct omap_crtc, update_work.work);
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struct drm_display_mode *mode = &omap_crtc->pipe->crtc->mode;
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struct omap_dss_device *dssdev = omap_crtc->pipe->output->next;
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struct omap_dss_device *dssdev = omap_crtc->pipe->output;
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struct drm_device *dev = omap_crtc->base.dev;
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const struct omap_dss_driver *dssdrv;
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int ret;
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if (!dssdev) {
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@ -373,13 +371,12 @@ static void omap_crtc_manual_display_update(struct work_struct *data)
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return;
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}
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dssdrv = dssdev->driver;
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if (!dssdrv || !dssdrv->update) {
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dev_err_once(dev->dev, "missing or incorrect dssdrv!");
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if (dssdev->type != OMAP_DISPLAY_TYPE_DSI || !dssdev->ops->dsi.update) {
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dev_err_once(dev->dev, "no DSI update callback found!");
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return;
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}
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ret = dssdrv->update(dssdev, 0, 0, mode->hdisplay, mode->vdisplay);
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ret = dssdev->ops->dsi.update(dssdev);
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if (ret < 0) {
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spin_lock_irq(&dev->event_lock);
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omap_crtc->pending = false;
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