Preserve the contents of MIPI_CAL_CTRL when starting mipi calibration. Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx> --- drivers/gpu/host1x/mipi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c index 4dd91fd..0af2892 100644 --- a/drivers/gpu/host1x/mipi.c +++ b/drivers/gpu/host1x/mipi.c @@ -215,7 +215,9 @@ int tegra_mipi_calibrate(struct tegra_mipi_device *device) tegra_mipi_writel(device->mipi, value, modules[i].reg); } - tegra_mipi_writel(device->mipi, MIPI_CAL_CTRL_START, MIPI_CAL_CTRL); + value = tegra_mipi_readl(device->mipi, MIPI_CAL_CTRL); + value |= MIPI_CAL_CTRL_START; + tegra_mipi_writel(device->mipi, value, MIPI_CAL_CTRL); err = tegra_mipi_wait(device->mipi); -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
