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@@ -85,24 +85,6 @@ static void mi0283qt_enable(struct drm_simple_display_pipe *pipe,
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/* Memory Access Control */
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mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
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- switch (mipi->rotation) {
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- default:
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- addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY |
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- ILI9341_MADCTL_MX;
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- break;
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- case 90:
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- addr_mode = ILI9341_MADCTL_MY;
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- break;
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- case 180:
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- addr_mode = ILI9341_MADCTL_MV;
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- break;
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- case 270:
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- addr_mode = ILI9341_MADCTL_MX;
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- break;
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- }
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- addr_mode |= ILI9341_MADCTL_BGR;
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- mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
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-
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/* Frame Rate */
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mipi_dbi_command(mipi, ILI9341_FRMCTR1, 0x00, 0x1b);
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@@ -128,6 +110,29 @@ static void mi0283qt_enable(struct drm_simple_display_pipe *pipe,
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msleep(100);
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out_enable:
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+ /* The PiTFT (ili9340) has a hardware reset circuit that
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+ * resets only on power-on and not on each reboot through
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+ * a gpio like the rpi-display does.
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+ * As a result, we need to always apply the rotation value
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+ * regardless of the display "on/off" state.
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+ */
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+ switch (mipi->rotation) {
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+ default:
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+ addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY |
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+ ILI9341_MADCTL_MX;
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+ break;
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+ case 90:
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+ addr_mode = ILI9341_MADCTL_MY;
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+ break;
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+ case 180:
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+ addr_mode = ILI9341_MADCTL_MV;
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+ break;
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+ case 270:
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+ addr_mode = ILI9341_MADCTL_MX;
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+ break;
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+ }
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+ addr_mode |= ILI9341_MADCTL_BGR;
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+ mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
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mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
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}
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