drm/rockchip: dw-mipi-dsi: pass mode in where needed

This shows that we only use the mode from the enable function and
prepares us to remove the "mode" field and the mode_set hook in the next
commit.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170224125506.21533-3-john@metanate.com

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index bbd9922..cdbd250 100644 (file)
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -330,11 +330,11 @@ static int max_mbps_to_testdin(unsigned int max_mbps)
  * The controller should generate 2 frames before
  * preparing the peripheral.
  */
-static void dw_mipi_dsi_wait_for_two_frames(struct dw_mipi_dsi *dsi)
+static void dw_mipi_dsi_wait_for_two_frames(struct drm_display_mode *mode)
 {
        int refresh, two_frames;
 
-       refresh = drm_mode_vrefresh(dsi->mode);
+       refresh = drm_mode_vrefresh(mode);
        two_frames = DIV_ROUND_UP(MSEC_PER_SEC, refresh) * 2;
        msleep(two_frames);
 }
@@ -459,7 +459,8 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
        return ret;
 }
 
-static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi)
+static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi,
+                                   struct drm_display_mode *mode)
 {
        unsigned int i, pre;
        unsigned long mpclk, pllref, tmp;
@@ -474,7 +475,7 @@ static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi)
                return bpp;
        }
 
-       mpclk = DIV_ROUND_UP(dsi->mode->clock, MSEC_PER_SEC);
+       mpclk = DIV_ROUND_UP(mode->clock, MSEC_PER_SEC);
        if (mpclk) {
                /* take 1 / 0.9, since mbps must big than bandwidth of RGB */
                tmp = mpclk * (bpp / dsi->lanes) * 10 / 9;
@@ -742,43 +743,44 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
 
 /* Get lane byte clock cycles. */
 static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
+                                          struct drm_display_mode *mode,
                                           u32 hcomponent)
 {
        u32 frac, lbcc;
 
        lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
 
-       frac = lbcc % dsi->mode->clock;
-       lbcc = lbcc / dsi->mode->clock;
+       frac = lbcc % mode->clock;
+       lbcc = lbcc / mode->clock;
        if (frac)
                lbcc++;
 
        return lbcc;
 }
 
-static void dw_mipi_dsi_line_timer_config(struct dw_mipi_dsi *dsi)
+static void dw_mipi_dsi_line_timer_config(struct dw_mipi_dsi *dsi,
+                                         struct drm_display_mode *mode)
 {
        u32 htotal, hsa, hbp, lbcc;
-       struct drm_display_mode *mode = dsi->mode;
 
        htotal = mode->htotal;
        hsa = mode->hsync_end - mode->hsync_start;
        hbp = mode->htotal - mode->hsync_end;
 
-       lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, htotal);
+       lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, htotal);
        dsi_write(dsi, DSI_VID_HLINE_TIME, lbcc);
 
-       lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, hsa);
+       lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, hsa);
        dsi_write(dsi, DSI_VID_HSA_TIME, lbcc);
 
-       lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, hbp);
+       lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, hbp);
        dsi_write(dsi, DSI_VID_HBP_TIME, lbcc);
 }
 
-static void dw_mipi_dsi_vertical_timing_config(struct dw_mipi_dsi *dsi)
+static void dw_mipi_dsi_vertical_timing_config(struct dw_mipi_dsi *dsi,
+                                              struct drm_display_mode *mode)
 {
        u32 vactive, vsa, vfp, vbp;
-       struct drm_display_mode *mode = dsi->mode;
 
        vactive = mode->vdisplay;
        vsa = mode->vsync_end - mode->vsync_start;
@@ -852,11 +854,12 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
 static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
 {
        struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
+       struct drm_display_mode *mode = dsi->mode;
        int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
        u32 val;
        int ret;
 
-       ret = dw_mipi_dsi_get_lane_bps(dsi);
+       ret = dw_mipi_dsi_get_lane_bps(dsi, mode);
        if (ret < 0)
                return;
 
@@ -866,13 +869,13 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
        }
 
        dw_mipi_dsi_init(dsi);
-       dw_mipi_dsi_dpi_config(dsi, dsi->mode);
+       dw_mipi_dsi_dpi_config(dsi, mode);
        dw_mipi_dsi_packet_handler_config(dsi);
        dw_mipi_dsi_video_mode_config(dsi);
-       dw_mipi_dsi_video_packet_config(dsi, dsi->mode);
+       dw_mipi_dsi_video_packet_config(dsi, mode);
        dw_mipi_dsi_command_mode_config(dsi);
-       dw_mipi_dsi_line_timer_config(dsi);
-       dw_mipi_dsi_vertical_timing_config(dsi);
+       dw_mipi_dsi_line_timer_config(dsi, mode);
+       dw_mipi_dsi_vertical_timing_config(dsi, mode);
        dw_mipi_dsi_dphy_timing_config(dsi);
        dw_mipi_dsi_dphy_interface_config(dsi);
        dw_mipi_dsi_clear_err(dsi);
@@ -880,7 +883,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
                dev_err(dsi->dev, "failed to prepare panel\n");
 
        dw_mipi_dsi_phy_init(dsi);
-       dw_mipi_dsi_wait_for_two_frames(dsi);
+       dw_mipi_dsi_wait_for_two_frames(mode);
 
        dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE);
        drm_panel_enable(dsi->panel);