From: Jagan Teki Date: Sun, 22 Dec 2019 13:22:25 +0000 (+0530) Subject: drm/sun4i: dsi: Get the mod clock for A31 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=26a839b3c286060ff3a6d7b14194ae845ec5aa96;p=uclinux-h8%2Flinux.git 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 Signed-off-by: Jagan Teki Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20191222132229.30276-4-jagan@amarulasolutions.com --- 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); + } } /*