Messages in this thread Patch in this message | | | From | Jagan Teki <> | Subject | [PATCH v3 3/6] media: sun6i: Set 300MHz mod clock for A64 | Date | Mon, 10 Dec 2018 17:22:43 +0530 |
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The default CSI_SCLK seems unable to drive the sensor to capture the image, so update it to working clock rate 300MHz for A64.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> --- drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c index bbe45e893722..4b872800b244 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -822,6 +822,11 @@ static int sun6i_csi_resource_request(struct sun6i_csi_dev *sdev, return PTR_ERR(sdev->clk_mod); } + /* A64 need 300MHz mod clock to operate properly */ + if (of_device_is_compatible(pdev->dev.of_node, + "allwinner,sun50i-a64-csi")) + clk_set_rate_exclusive(sdev->clk_mod, 300000000); + sdev->clk_ram = devm_clk_get(&pdev->dev, "ram"); if (IS_ERR(sdev->clk_ram)) { dev_err(&pdev->dev, "Unable to acquire dram-csi clock\n"); -- 2.18.0.321.gffc6fa0e3
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