tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/tegra: dsi: Add Tegra210 support
The DSI host controller hasn't changed from Tegra132 to Tegra210, but
different characterization parameters may be required.
Signed-off-by: Thierry Reding <treding@nvidia.com>
+10
+1
drivers/gpu/drm/tegra/drm.c
+1
drivers/gpu/drm/tegra/drm.c
+5
drivers/gpu/drm/tegra/dsi.c
+5
drivers/gpu/drm/tegra/dsi.c
···
997
997
DSI_PAD_OUT_CLK(0x0);
998
998
tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_2);
999
999
1000
+
value = DSI_PAD_PREEMP_PD_CLK(0x3) | DSI_PAD_PREEMP_PU_CLK(0x3) |
1001
+
DSI_PAD_PREEMP_PD(0x03) | DSI_PAD_PREEMP_PU(0x3);
1002
+
tegra_dsi_writel(dsi, value, DSI_PAD_CONTROL_3);
1003
+
1000
1004
return tegra_mipi_calibrate(dsi->mipi);
1001
1005
}
1002
1006
···
1630
1626
}
1631
1627
1632
1628
static const struct of_device_id tegra_dsi_of_match[] = {
1629
+
{ .compatible = "nvidia,tegra210-dsi", },
1633
1630
{ .compatible = "nvidia,tegra132-dsi", },
1634
1631
{ .compatible = "nvidia,tegra124-dsi", },
1635
1632
{ .compatible = "nvidia,tegra114-dsi", },
+4
drivers/gpu/drm/tegra/dsi.h
+4
drivers/gpu/drm/tegra/dsi.h
···
113
113
#define DSI_PAD_SLEW_DN(x) (((x) & 0x7) << 12)
114
114
#define DSI_PAD_SLEW_UP(x) (((x) & 0x7) << 16)
115
115
#define DSI_PAD_CONTROL_3 0x51
116
+
#define DSI_PAD_PREEMP_PD_CLK(x) (((x) & 0x3) << 12)
117
+
#define DSI_PAD_PREEMP_PU_CLK(x) (((x) & 0x3) << 8)
118
+
#define DSI_PAD_PREEMP_PD(x) (((x) & 0x3) << 4)
119
+
#define DSI_PAD_PREEMP_PU(x) (((x) & 0x3) << 0)
116
120
#define DSI_PAD_CONTROL_4 0x52
117
121
#define DSI_GANGED_MODE_CONTROL 0x53
118
122
#define DSI_GANGED_MODE_CONTROL_ENABLE (1 << 0)