[PATCH 4/4] host1x: mipi: Set MIPI_CAL_BIAS_PAD_CFG1 register

[Sean Paul <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>]

During calibration, set the "internal reference level for drive
pull-down" to the value specified in the tegra TRM.

Signed-off-by: Sean Paul <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
---
 drivers/gpu/host1x/mipi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c
index 80578dc..84ed422 100644
--- a/drivers/gpu/host1x/mipi.c
+++ b/drivers/gpu/host1x/mipi.c
@@ -235,6 +235,8 @@ int tegra_mipi_calibrate(struct tegra_mipi_device *device)
 	value |= MIPI_CAL_BIAS_PAD_E_VCLAMP_REF;
 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG0);
 
+	tegra_mipi_writel(device->mipi, 0x20000, MIPI_CAL_BIAS_PAD_CFG1);
+
 	value = tegra_mipi_readl(device->mipi, MIPI_CAL_BIAS_PAD_CFG2);
 	value &= ~MIPI_CAL_BIAS_PAD_PDVREG;
 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
-- 
2.0.0