Re: [PATCH v3] drm: tilcdc: add a da850-specific compatible string

From: Jyri Sarha
Date: Mon Oct 10 2016 - 02:55:51 EST


On 10/03/16 18:45, Bartosz Golaszewski wrote:
> Due to some potential tweaks for the da850 LCDC (for example: the
> required memory bandwith settings) we need a separate compatible
> for the IP present on the da850 boards.
>
> Suggested-by: Sekhar Nori <nsekhar@xxxxxx>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>

Thanks,
I pick this up, but I won't send it for 4.9 any more. The LCDC rev1
support is not yet complete in 4.9 anyway.

BR,
Jyri

> ---
> v1 -> v2:
> - added the new compatible to the bindings documentation
>
> v2 -> v3:
> - made the documentation more detailed
>
> Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt | 6 ++++--
> drivers/gpu/drm/tilcdc/tilcdc_drv.c | 1 +
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt b/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt
> index a83abd7..6fddb4f 100644
> --- a/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt
> +++ b/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt
> @@ -1,7 +1,9 @@
> Device-Tree bindings for tilcdc DRM driver
>
> Required properties:
> - - compatible: value should be "ti,am33xx-tilcdc".
> + - compatible: value should be one of the following:
> + - "ti,am33xx-tilcdc" for AM335x based boards
> + - "ti,da850-tilcdc" for DA850/AM18x/OMAP-L138 based boards
> - interrupts: the interrupt number
> - reg: base address and size of the LCDC device
>
> @@ -51,7 +53,7 @@ Optional nodes:
> Example:
>
> fb: fb@4830e000 {
> - compatible = "ti,am33xx-tilcdc";
> + compatible = "ti,am33xx-tilcdc", "ti,da850-tilcdc";
> reg = <0x4830e000 0x1000>;
> interrupt-parent = <&intc>;
> interrupts = <36>;
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> index a694977..231f2c7 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
> @@ -723,6 +723,7 @@ static int tilcdc_pdev_remove(struct platform_device *pdev)
>
> static struct of_device_id tilcdc_of_match[] = {
> { .compatible = "ti,am33xx-tilcdc", },
> + { .compatible = "ti,da850-tilcdc", },
> { },
> };
> MODULE_DEVICE_TABLE(of, tilcdc_of_match);
>