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Date:   Wed, 11 Jul 2018 10:07:13 -0600
From:   Rob Herring <robh@kernel.org>
To:     Todor Tomov <todor.tomov@linaro.org>
Cc:     mchehab@kernel.org, sakari.ailus@linux.intel.com,
        hans.verkuil@cisco.com, laurent.pinchart+renesas@ideasonboard.com,
        linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
        Mark Rutland <mark.rutland@arm.com>, devicetree@vger.kernel.org
Subject: Re: [PATCH v2 08/34] media: camss: Unify the clock names
Message-ID: <20180711160713.GA29354@rob-hp-laptop>
References: <1530797585-8555-1-git-send-email-todor.tomov@linaro.org>
 <1530797585-8555-9-git-send-email-todor.tomov@linaro.org>
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On Thu, Jul 05, 2018 at 04:32:39PM +0300, Todor Tomov wrote:
> Unify the clock names - use names closer to the clock
> definitions.

Why? You can't just change names. You are breaking an ABI.

> 
> CC: Rob Herring <robh+dt@kernel.org>
> CC: Mark Rutland <mark.rutland@arm.com>
> CC: devicetree@vger.kernel.org
> Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
> ---
>  .../devicetree/bindings/media/qcom,camss.txt       | 24 +++++++++++-----------

Bindings should be a separate patch.

>  drivers/media/platform/qcom/camss/camss.c          | 20 ++++++++----------
>  2 files changed, 20 insertions(+), 24 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,camss.txt b/Documentation/devicetree/bindings/media/qcom,camss.txt
> index cadeceb..032e8ed 100644
> --- a/Documentation/devicetree/bindings/media/qcom,camss.txt
> +++ b/Documentation/devicetree/bindings/media/qcom,camss.txt
> @@ -53,7 +53,7 @@ Qualcomm Camera Subsystem
>  	Usage: required
>  	Value type: <stringlist>
>  	Definition: Should contain the following entries:
> -                - "camss_top_ahb"
> +                - "top_ahb"
>                  - "ispif_ahb"
>                  - "csiphy0_timer"
>                  - "csiphy1_timer"
> @@ -67,11 +67,11 @@ Qualcomm Camera Subsystem
>                  - "csi1_phy"
>                  - "csi1_pix"
>                  - "csi1_rdi"
> -                - "camss_ahb"
> -                - "camss_vfe_vfe"
> -                - "camss_csi_vfe"
> -                - "iface"
> -                - "bus"
> +                - "ahb"
> +                - "vfe0"
> +                - "csi_vfe0"
> +                - "vfe_ahb"
> +                - "vfe_axi"
>  - vdda-supply:
>  	Usage: required
>  	Value type: <phandle>
> @@ -161,7 +161,7 @@ Qualcomm Camera Subsystem
>  			<&gcc GCC_CAMSS_CSI_VFE0_CLK>,
>  			<&gcc GCC_CAMSS_VFE_AHB_CLK>,
>  			<&gcc GCC_CAMSS_VFE_AXI_CLK>;
> -                clock-names = "camss_top_ahb",
> +                clock-names = "top_ahb",
>                          "ispif_ahb",
>                          "csiphy0_timer",
>                          "csiphy1_timer",
> @@ -175,11 +175,11 @@ Qualcomm Camera Subsystem
>                          "csi1_phy",
>                          "csi1_pix",
>                          "csi1_rdi",
> -                        "camss_ahb",
> -                        "camss_vfe_vfe",
> -                        "camss_csi_vfe",
> -                        "iface",
> -                        "bus";
> +                        "ahb",
> +                        "vfe0",
> +                        "csi_vfe0",
> +                        "vfe_ahb",
> +                        "vfe_axi";
>  		vdda-supply = <&pm8916_l2>;
>  		iommus = <&apps_iommu 3>;
>  		ports {
> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> index abf6184..0b663e0 100644
> --- a/drivers/media/platform/qcom/camss/camss.c
> +++ b/drivers/media/platform/qcom/camss/camss.c
> @@ -32,8 +32,7 @@ static const struct resources csiphy_res[] = {
>  	/* CSIPHY0 */
>  	{
>  		.regulator = { NULL },
> -		.clock = { "camss_top_ahb", "ispif_ahb",
> -			   "camss_ahb", "csiphy0_timer" },
> +		.clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer" },
>  		.clock_rate = { { 0 },
>  				{ 0 },
>  				{ 0 },
> @@ -45,8 +44,7 @@ static const struct resources csiphy_res[] = {
>  	/* CSIPHY1 */
>  	{
>  		.regulator = { NULL },
> -		.clock = { "camss_top_ahb", "ispif_ahb",
> -			   "camss_ahb", "csiphy1_timer" },
> +		.clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer" },
>  		.clock_rate = { { 0 },
>  				{ 0 },
>  				{ 0 },
> @@ -60,8 +58,7 @@ static const struct resources csid_res[] = {
>  	/* CSID0 */
>  	{
>  		.regulator = { "vdda" },
> -		.clock = { "camss_top_ahb", "ispif_ahb",
> -			   "csi0_ahb", "camss_ahb",
> +		.clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb",
>  			   "csi0", "csi0_phy", "csi0_pix", "csi0_rdi" },
>  		.clock_rate = { { 0 },
>  				{ 0 },
> @@ -78,8 +75,7 @@ static const struct resources csid_res[] = {
>  	/* CSID1 */
>  	{
>  		.regulator = { "vdda" },
> -		.clock = { "camss_top_ahb", "ispif_ahb",
> -			   "csi1_ahb", "camss_ahb",
> +		.clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb",
>  			   "csi1", "csi1_phy", "csi1_pix", "csi1_rdi" },
>  		.clock_rate = { { 0 },
>  				{ 0 },
> @@ -96,10 +92,10 @@ static const struct resources csid_res[] = {
>  
>  static const struct resources_ispif ispif_res = {
>  	/* ISPIF */
> -	.clock = { "camss_top_ahb", "camss_ahb", "ispif_ahb",
> +	.clock = { "top_ahb", "ahb", "ispif_ahb",
>  		   "csi0", "csi0_pix", "csi0_rdi",
>  		   "csi1", "csi1_pix", "csi1_rdi" },
> -	.clock_for_reset = { "camss_vfe_vfe", "camss_csi_vfe" },
> +	.clock_for_reset = { "vfe0", "csi_vfe0" },
>  	.reg = { "ispif", "csi_clk_mux" },
>  	.interrupt = "ispif"
>  
> @@ -108,8 +104,8 @@ static const struct resources_ispif ispif_res = {
>  static const struct resources vfe_res = {
>  	/* VFE0 */
>  	.regulator = { NULL },
> -	.clock = { "camss_top_ahb", "camss_vfe_vfe", "camss_csi_vfe",
> -		   "iface", "bus", "camss_ahb" },
> +	.clock = { "top_ahb", "vfe0", "csi_vfe0",
> +		   "vfe_ahb", "vfe_axi", "ahb" },
>  	.clock_rate = { { 0 },
>  			{ 50000000, 80000000, 100000000, 160000000,
>  			  177780000, 200000000, 266670000, 320000000,
> -- 
> 2.7.4
>