diff options
| author |   Jagan Teki <jagan@amarulasolutions.com> | 2019-12-22 18:52:25 +0530 |
|---|---|---|
| committer |   Maxime Ripard <maxime@cerno.tech> | 2019-12-26 10:33:59 +0100 |
| commit | 26a839b3c286060ff3a6d7b14194ae845ec5aa96 (patch) | |
| tree | 0f6f067e8798c49d52df17d9b67d6bf231034de6 /drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | |
| parent | dt-bindings: sun6i-dsi: Add A64 DPHY compatible (w/ A31 fallback) (diff) | |
| download | linux-dev-26a839b3c286060ff3a6d7b14194ae845ec5aa96.tar.xz linux-dev-26a839b3c286060ff3a6d7b14194ae845ec5aa96.zip | |
drm/sun4i: dsi: Get the mod clock for A31
As per the user manual, look like mod clock is not mandatory
for all Allwinner MIPI DSI controllers, it is connected to
CLK_DSI_SCLK for A31 and not available in A64.
So, add compatible check for A31 and get mod clock accordingly.
Tested-by: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20191222132229.30276-4-jagan@amarulasolutions.com
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 4e8f634cc2db..9bb3222c95b9 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -1120,10 +1120,13 @@ static int sun6i_dsi_probe(struct platform_device *pdev) return PTR_ERR(dsi->reset); } - dsi->mod_clk = devm_clk_get(dev, "mod"); - if (IS_ERR(dsi->mod_clk)) { - dev_err(dev, "Couldn't get the DSI mod clock\n"); - return PTR_ERR(dsi->mod_clk); + if (of_device_is_compatible(dev->of_node, + "allwinner,sun6i-a31-mipi-dsi")) { + dsi->mod_clk = devm_clk_get(dev, "mod"); + if (IS_ERR(dsi->mod_clk)) { + dev_err(dev, "Couldn't get the DSI mod clock\n"); + return PTR_ERR(dsi->mod_clk); + } } /* |