Hi Rahul,
On Tuesday 18 of June 2013 18:19:35 Rahul Sharma wrote:
> This patch renames the combatible strings for hdmi, mixer, ddc
> and hdmiphy. It follows the convention of using compatible string
> which represent the SoC in which the IP was added for the first
> time.
>
> Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/video/exynos_hdmi.txt | 6
> ++++-- Documentation/devicetree/bindings/video/exynos_hdmiddc.txt |
> 4 ++-- Documentation/devicetree/bindings/video/exynos_hdmiphy.txt |
> 6 ++++-- Documentation/devicetree/bindings/video/exynos_mixer.txt |
> 7 +++++-- drivers/gpu/drm/exynos/exynos_ddc.c |
> 2 +- drivers/gpu/drm/exynos/exynos_hdmi.c |
> 2 +- drivers/gpu/drm/exynos/exynos_hdmiphy.c | 4
> +++- drivers/gpu/drm/exynos/exynos_mixer.c | 12
> ++++++------ 8 files changed, 26 insertions(+), 17 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/video/exynos_hdmi.txt
> b/Documentation/devicetree/bindings/video/exynos_hdmi.txt index
> 589edee..2ac01ca 100644
> --- a/Documentation/devicetree/bindings/video/exynos_hdmi.txt
> +++ b/Documentation/devicetree/bindings/video/exynos_hdmi.txt
> @@ -1,7 +1,9 @@
> Device-Tree bindings for drm hdmi driver
>
> Required properties:
> -- compatible: value should be "samsung,exynos5-hdmi".
> +- compatible: value should be one among the following:
> + 1) "samsung,exynos4210-hdmi"
> + 2) "samsung,exynos4212-hdmi"
> - reg: physical base address of the hdmi and length of memory mapped
> region.
> - interrupts: interrupt number to the cpu.
> @@ -15,7 +17,7 @@ Required properties:
> Example:
>
> hdmi {
> - compatible = "samsung,exynos5-hdmi";
> + compatible = "samsung,exynos4212-hdmi";
Sorry, but it's a NAK from me.
DeviceTree bindings are considered an ABI. This is to allow older dtbs to
work with new kernels.
If you just change the binding this way, you break all the existing users
of this compatible value.
In addition you are doing it in a way that breaks bisection:
- patch 1/4 breaks existing in-tree users of current compatible values,
- after patch 2 and 3 it is still broken,
- and eventually all in-tree users are fixed by patch 4 (but you can't
fix out-of-tree users).
Please do it without changing existing compatible values. Even if they are
misleading, this is all can be described in the documentation - just list
SoCs that can be used with each compatible value there.
Best regards,
Tomasz
> reg = <0x14530000 0x100000>;
> interrupts = <0 95 0>;
> hpd-gpio = <&gpx3 7 0xf 1 3>;
> diff --git a/Documentation/devicetree/bindings/video/exynos_hdmiddc.txt
> b/Documentation/devicetree/bindings/video/exynos_hdmiddc.txt index
> fa166d9..c1bd2ea 100644
> --- a/Documentation/devicetree/bindings/video/exynos_hdmiddc.txt
> +++ b/Documentation/devicetree/bindings/video/exynos_hdmiddc.txt
> @@ -1,12 +1,12 @@
> Device-Tree bindings for hdmiddc driver
>
> Required properties:
> -- compatible: value should be "samsung,exynos5-hdmiddc".
> +- compatible: value should be "samsung,exynos4210-hdmiddc".
> - reg: I2C address of the hdmiddc device.
>
> Example:
>
> hdmiddc {
> - compatible = "samsung,exynos5-hdmiddc";
> + compatible = "samsung,exynos4210-hdmiddc";
> reg = <0x50>;
> };
> diff --git a/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
> b/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt index
> 858f4f9..e59d793 100644
> --- a/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
> +++ b/Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
> @@ -1,12 +1,14 @@
> Device-Tree bindings for hdmiphy driver
>
> Required properties:
> -- compatible: value should be "samsung,exynos5-hdmiphy".
> +- compatible: value should be
> + 1) "samsung,exynos4210-hdmiphy".
> + 2) "samsung,exynos4212-hdmiphy".
> - reg: I2C address of the hdmiphy device.
>
> Example:
>
> hdmiphy {
> - compatible = "samsung,exynos5-hdmiphy";
> + compatible = "samsung,exynos4210-hdmiphy";
> reg = <0x38>;
> };
> diff --git a/Documentation/devicetree/bindings/video/exynos_mixer.txt
> b/Documentation/devicetree/bindings/video/exynos_mixer.txt index
> 9b2ea03..a8b063f 100644
> --- a/Documentation/devicetree/bindings/video/exynos_mixer.txt
> +++ b/Documentation/devicetree/bindings/video/exynos_mixer.txt
> @@ -1,7 +1,10 @@
> Device-Tree bindings for mixer driver
>
> Required properties:
> -- compatible: value should be "samsung,exynos5-mixer".
> +- compatible: value should be:
> + 1) "samsung,exynos4210-mixer"
> + 2) "samsung,exynos5250-mixer"
> +
> - reg: physical base address of the mixer and length of memory mapped
> region.
> - interrupts: interrupt number to the cpu.
> @@ -9,7 +12,7 @@ Required properties:
> Example:
>
> mixer {
> - compatible = "samsung,exynos5-mixer";
> + compatible = "samsung,exynos5250-mixer";
> reg = <0x14450000 0x10000>;
> interrupts = <0 94 0>;
> };
> diff --git a/drivers/gpu/drm/exynos/exynos_ddc.c
> b/drivers/gpu/drm/exynos/exynos_ddc.c index 4e9b5ba..1a0cca1 100644
> --- a/drivers/gpu/drm/exynos/exynos_ddc.c
> +++ b/drivers/gpu/drm/exynos/exynos_ddc.c
> @@ -51,7 +51,7 @@ static struct i2c_device_id ddc_idtable[] = {
> #ifdef CONFIG_OF
> static struct of_device_id hdmiddc_match_types[] = {
> {
> - .compatible = "samsung,exynos5-hdmiddc",
> + .compatible = "samsung,exynos4210-hdmiddc",
> }, {
> /* end node */
> }
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c
> b/drivers/gpu/drm/exynos/exynos_hdmi.c index 743059f..8752171 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -1913,7 +1913,7 @@ static struct platform_device_id
> hdmi_driver_types[] = { #ifdef CONFIG_OF
> static struct of_device_id hdmi_match_types[] = {
> {
> - .compatible = "samsung,exynos5-hdmi",
> + .compatible = "samsung,exynos4212-hdmi",
> .data = (void *)HDMI_TYPE14,
> }, {
> /* end node */
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmiphy.c
> b/drivers/gpu/drm/exynos/exynos_hdmiphy.c index ea49d13..bf1718a 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmiphy.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmiphy.c
> @@ -49,7 +49,9 @@ static const struct i2c_device_id hdmiphy_id[] = {
> #ifdef CONFIG_OF
> static struct of_device_id hdmiphy_match_types[] = {
> {
> - .compatible = "samsung,exynos5-hdmiphy",
> + .compatible = "samsung,exynos4210-hdmiphy",
> + }, {
> + .compatible = "samsung,exynos4212-hdmiphy",
> }, {
> /* end node */
> }
> diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c
> b/drivers/gpu/drm/exynos/exynos_mixer.c index f36f878..2fe6d33 100644
> --- a/drivers/gpu/drm/exynos/exynos_mixer.c
> +++ b/drivers/gpu/drm/exynos/exynos_mixer.c
> @@ -1115,12 +1115,12 @@ static int vp_resources_init(struct
> exynos_drm_hdmi_context *ctx, return 0;
> }
>
> -static struct mixer_drv_data exynos5_mxr_drv_data = {
> +static struct mixer_drv_data exynos5250_mxr_drv_data = {
> .version = MXR_VER_16_0_33_0,
> .is_vp_enabled = 0,
> };
>
> -static struct mixer_drv_data exynos4_mxr_drv_data = {
> +static struct mixer_drv_data exynos4210_mxr_drv_data = {
> .version = MXR_VER_0_0_0_16,
> .is_vp_enabled = 1,
> };
> @@ -1128,10 +1128,10 @@ static struct mixer_drv_data
> exynos4_mxr_drv_data = { static struct platform_device_id
> mixer_driver_types[] = {
> {
> .name = "s5p-mixer",
> - .driver_data = (unsigned long)&exynos4_mxr_drv_data,
> + .driver_data = (unsigned long)&exynos4210_mxr_drv_data,
> }, {
> .name = "exynos5-mixer",
> - .driver_data = (unsigned long)&exynos5_mxr_drv_data,
> + .driver_data = (unsigned long)&exynos5250_mxr_drv_data,
> }, {
> /* end node */
> }
> @@ -1139,8 +1139,8 @@ static struct platform_device_id
> mixer_driver_types[] = {
>
> static struct of_device_id mixer_match_types[] = {
> {
> - .compatible = "samsung,exynos5-mixer",
> - .data = &exynos5_mxr_drv_data,
> + .compatible = "samsung,exynos5250-mixer",
> + .data = &exynos5250_mxr_drv_data,
> }, {
> /* end node */
> }
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