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

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

[Bartosz Golaszewski]

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@ti.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
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);
-- 
2.9.3

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

[Rob Herring]

On Mon, Oct 03, 2016 at 05:45:19PM +0200, 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@ti.com>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
> 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(-)

Acked-by: Rob Herring <robh@kernel.org>

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

[Jyri Sarha]

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@ti.com>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

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);
>