[PATCHv2 15/56] drm/omap: panel-dsi-cm: use DSI helpers

After converting the driver to mipi_dsi_device we can use the generic message helpers to simplify the driver a lot.

Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com --- .../gpu/drm/omapdrm/displays/panel-dsi-cm.c | 126 +++--------------- 1 file changed, 18 insertions(+), 108 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index c34daecb1de5..4a4a55135494 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -138,62 +138,22 @@ static void hw_guard_wait(struct panel_drv_data *ddata)

static int dsicm_dcs_read_1(struct panel_drv_data *ddata, u8 dcs_cmd, u8 *data) { - struct mipi_dsi_device *dsi = ddata->dsi; - const struct mipi_dsi_msg msg = { - .channel = ddata->channel, - .type = MIPI_DSI_DCS_READ, - .tx_len = 1, - .tx_buf = &dcs_cmd, - .rx_len = 1, - .rx_buf = data - }; - - return dsi->host->ops->transfer(dsi->host, &msg); -} - -static int dsicm_dcs_write_0(struct panel_drv_data *ddata, u8 dcs_cmd) -{ - struct mipi_dsi_device *dsi = ddata->dsi; - const struct mipi_dsi_msg msg = { - .channel = ddata->channel, - .type = MIPI_DSI_DCS_SHORT_WRITE, - .tx_buf = &dcs_cmd, - .tx_len = 1, - }; - - return dsi->host->ops->transfer(dsi->host, &msg); + return mipi_dsi_dcs_read(ddata->dsi, dcs_cmd, data, 1); }

static int dsicm_dcs_write_1(struct panel_drv_data *ddata, u8 dcs_cmd, u8 param) { - struct mipi_dsi_device *dsi = ddata->dsi; - const u8 buf[] = { dcs_cmd, param }; - const struct mipi_dsi_msg msg = { - .channel = ddata->channel, - .type = MIPI_DSI_DCS_SHORT_WRITE_PARAM, - .tx_buf = &buf, - .tx_len = 2, - }; - - return dsi->host->ops->transfer(dsi->host, &msg); + return mipi_dsi_dcs_write(ddata->dsi, dcs_cmd, &param, 1); }

static int dsicm_sleep_in(struct panel_drv_data *ddata)

{ - struct mipi_dsi_device *dsi = ddata->dsi; int r; - const u8 cmd = MIPI_DCS_ENTER_SLEEP_MODE; - const struct mipi_dsi_msg msg = { - .channel = ddata->channel, - .type = MIPI_DSI_DCS_SHORT_WRITE, - .tx_buf = &cmd, - .tx_len = 1, - };

hw_guard_wait(ddata);

- r = dsi->host->ops->transfer(dsi->host, &msg); + r = mipi_dsi_dcs_enter_sleep_mode(ddata->dsi); if (r) return r;

@@ -210,7 +170,7 @@ static int dsicm_sleep_out(struct panel_drv_data *ddata)

hw_guard_wait(ddata);

- r = dsicm_dcs_write_0(ddata, MIPI_DCS_EXIT_SLEEP_MODE); + r = mipi_dsi_dcs_exit_sleep_mode(ddata->dsi); if (r) return r;

@@ -248,46 +208,15 @@ static int dsicm_set_update_window(struct panel_drv_data *ddata, u16 y1 = y; u16 y2 = y + h - 1;

- const u8 paramX[] = { - MIPI_DCS_SET_COLUMN_ADDRESS, - (x1 >> 8) & 0xff, - (x1 >> 0) & 0xff, - (x2 >> 8) & 0xff, - (x2 >> 0) & 0xff, - }; - - const struct mipi_dsi_msg msgX = { - .channel = ddata->channel, - .type = MIPI_DSI_GENERIC_LONG_WRITE, - .tx_buf = paramX, - .tx_len = 5, - }; - - const u8 paramY[] = { - MIPI_DCS_SET_PAGE_ADDRESS, - (y1 >> 8) & 0xff, - (y1 >> 0) & 0xff, - (y2 >> 8) & 0xff, - (y2 >> 0) & 0xff, - }; - - const struct mipi_dsi_msg msgY = { - .channel = ddata->channel, - .type = MIPI_DSI_GENERIC_LONG_WRITE, - .tx_buf = paramY, - .tx_len = 5, - }; - - - r = dsi->host->ops->transfer(dsi->host, &msgX); - if (r) + r = mipi_dsi_dcs_set_column_address(dsi, x1, x2); + if (r < 0) return r;

- r = dsi->host->ops->transfer(dsi->host, &msgY); - if (r) + r = mipi_dsi_dcs_set_page_address(dsi, y1, y2); + if (r < 0) return r;

- return r; + return 0; }

static void dsicm_queue_ulps_work(struct panel_drv_data *ddata) @@ -681,12 +610,11 @@ static int dsicm_power_on(struct panel_drv_data *ddata) if (r) goto err;

- r = dsicm_dcs_write_1(ddata, MIPI_DCS_SET_PIXEL_FORMAT, - MIPI_DCS_PIXEL_FMT_24BIT); + r = mipi_dsi_dcs_set_pixel_format(ddata->dsi, MIPI_DCS_PIXEL_FMT_24BIT); if (r) goto err;

- r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_DISPLAY_ON); + r = mipi_dsi_dcs_set_display_on(ddata->dsi); if (r) goto err;

@@ -732,7 +660,7 @@ static void dsicm_power_off(struct panel_drv_data *ddata)

src->ops->dsi.disable_video_output(src, ddata->channel);

- r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_DISPLAY_OFF); + r = mipi_dsi_dcs_set_display_off(ddata->dsi); if (!r) r = dsicm_sleep_in(ddata);

@@ -950,12 +878,13 @@ static int dsicm_sync(struct omap_dss_device *dssdev) static int _dsicm_enable_te(struct panel_drv_data *ddata, bool enable) { struct omap_dss_device *src = ddata->src; + struct mipi_dsi_device *dsi = ddata->dsi; int r;

if (enable) - r = dsicm_dcs_write_1(ddata, MIPI_DCS_SET_TEAR_ON, 0); + r = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); else - r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_TEAR_OFF); + r = mipi_dsi_dcs_set_tear_off(dsi);

if (!ddata->ext_te_gpio) src->ops->dsi.enable_te(src, enable); @@ -1021,19 +950,7 @@ static int dsicm_set_max_rx_packet_size(struct omap_dss_device *dssdev, struct panel_drv_data *ddata = to_panel_data(dssdev); struct mipi_dsi_device *dsi = ddata->dsi;

- const u8 buf[] = { - size & 0xff, - size >> 8 & 0xff, - }; - - const struct mipi_dsi_msg msg = { - .channel = ddata->channel, - .type = MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE, - .tx_buf = buf, - .tx_len = 2, - }; - - return dsi->host->ops->transfer(dsi->host, &msg); + return mipi_dsi_set_maximum_return_packet_size(dsi, size); }

static int dsicm_memory_read(struct omap_dss_device *dssdev, @@ -1083,17 +1000,10 @@ static int dsicm_memory_read(struct omap_dss_device *dssdev,

while (buf_used < size) { u8 dcs_cmd = first ? 0x2e : 0x3e; - const struct mipi_dsi_msg msg = { - .channel = ddata->channel, - .type = MIPI_DSI_DCS_READ, - .tx_buf = &dcs_cmd, - .tx_len = 1, - .rx_buf = buf + buf_used, - .rx_len = size - buf_used, - }; first = 0;

- r = dsi->host->ops->transfer(dsi->host, &msg); + r = mipi_dsi_dcs_read(dsi, dcs_cmd, + buf + buf_used, size - buf_used); if (r < 0) { dev_err(dssdev->dev, "read error\n"); goto err3;