[PATCH 2/4] host1x: mipi: Preserve the contents of MIPI_CAL_CTRL
From: Sean Paul <hidden>
Date: 2014-08-07 06:11:45
Also in:
linux-devicetree
Subsystem:
drm drivers, drm drivers for nvidia tegra, the rest · Maintainers:
David Airlie, Simona Vetter, Thierry Reding, Mikko Perttunen, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2014-08-07 · Re: [PATCH 2/4] host1x: mipi: Preserve the contents of MIPI_CAL_CTRL · Thierry Reding <hidden>
Preserve the contents of MIPI_CAL_CTRL when starting mipi calibration. Signed-off-by: Sean Paul <redacted> --- 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