Re: [PATCH v7 4/7] staging: imx-drm: imx-hdmi: move imx-hdmi to bridge/dw-hdmi

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Hi Andy,

On 11/11/14 12:53, Andy Yan wrote:
> the original imx hdmi driver is under staging/imx-drm,
> which depends on imx-drm, so move the imx hdmi drvier out

Spelling mistake. 				^'driver'

> to drm/bridge and rename imx-hdmi to dw-hdmi
				      ^dw_hdmi

> 
> Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
> 
> ---
> 
> Changes in v7: None
> Changes in v6: None
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2:
> - use git format -M to generate these patch
> 
>  drivers/gpu/drm/bridge/Kconfig                     |   5 +
>  drivers/gpu/drm/bridge/Makefile                    |   1 +
>  .../imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c}        | 281 +++++++++++----------
>  .../imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h}        |  46 +---
>  drivers/staging/imx-drm/Kconfig                    |   1 +
>  drivers/staging/imx-drm/Makefile                   |   2 +-
>  drivers/staging/imx-drm/dw_hdmi-imx.c              |  70 ++---
>  include/drm/bridge/dw_hdmi.h                       |  57 +++++
>  8 files changed, 243 insertions(+), 220 deletions(-)
>  rename drivers/{staging/imx-drm/imx-hdmi.c => gpu/drm/bridge/dw_hdmi.c} (83%)
>  rename drivers/{staging/imx-drm/imx-hdmi.h => gpu/drm/bridge/dw_hdmi.h} (97%)
>  create mode 100644 include/drm/bridge/dw_hdmi.h
> 
> diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
> index 884923f..26162ef 100644
> --- a/drivers/gpu/drm/bridge/Kconfig
> +++ b/drivers/gpu/drm/bridge/Kconfig
> @@ -3,3 +3,8 @@ config DRM_PTN3460
>  	depends on DRM
>  	select DRM_KMS_HELPER
>  	---help---
> +
> +config DRM_DW_HDMI
> +	bool "Synopsys DesignWare High-Definition Multimedia Interface"
> +	depends on DRM
> +	select DRM_KMS_HELPER
> diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
> index b4733e1..d8a8cfd 100644
> --- a/drivers/gpu/drm/bridge/Makefile
> +++ b/drivers/gpu/drm/bridge/Makefile
> @@ -1,3 +1,4 @@
>  ccflags-y := -Iinclude/drm
>  
>  obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
> +obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
> diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
> similarity index 83%
> rename from drivers/staging/imx-drm/imx-hdmi.c
> rename to drivers/gpu/drm/bridge/dw_hdmi.c
> index c7e5f12..e9f0dfe 100644
> --- a/drivers/staging/imx-drm/imx-hdmi.c
> +++ b/drivers/gpu/drm/bridge/dw_hdmi.c
> @@ -6,8 +6,7 @@
>   * the Free Software Foundation; either version 2 of the License, or
>   * (at your option) any later version.
>   *
> - * SH-Mobile High-Definition Multimedia Interface (HDMI) driver
> - * for SLISHDMI13T and SLIPHDMIT IP cores

...

> diff --git a/drivers/staging/imx-drm/imx-hdmi.h b/drivers/gpu/drm/bridge/dw_hdmi.h
> similarity index 97%
> rename from drivers/staging/imx-drm/imx-hdmi.h
> rename to drivers/gpu/drm/bridge/dw_hdmi.h
> index e67d60d..b8412a9 100644
> --- a/drivers/staging/imx-drm/imx-hdmi.h
> +++ b/drivers/gpu/drm/bridge/dw_hdmi.h
> @@ -7,8 +7,8 @@
>   * (at your option) any later version.
>   */
>  
> -#ifndef __IMX_HDMI_H__
> -#define __IMX_HDMI_H__
> +#ifndef __DW_HDMI__
> +#define __DW_HDMI__
>  
>  /* Identification Registers */
>  #define HDMI_DESIGN_ID                          0x0000
> @@ -1030,46 +1030,4 @@ enum {
>  	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW = 0x0,
>  };
>  
> -enum {
> -	RES_8,
> -	RES_10,
> -	RES_12,
> -	RES_MAX,
> -};
> -
> -enum imx_hdmi_devtype {
> -	IMX6Q_HDMI,
> -	IMX6DL_HDMI,
> -};
> -
> -struct mpll_config {
> -	unsigned long mpixelclock;
> -	struct {
> -		u16 cpce;
> -		u16 gmp;
> -	} res[RES_MAX];
> -};
> -
> -struct curr_ctrl {
> -	unsigned long mpixelclock;
> -	u16 curr[RES_MAX];
> -};
> -
> -struct imx_hdmi_plat_data {
> -	void * (*setup)(struct platform_device *pdev);
> -	void (*exit)(void *priv);
> -	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
> -	void (*encoder_prepare)(struct drm_connector *connector,
> -				struct drm_encoder *encoder);
> -	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
> -					   struct drm_display_mode *mode);
> -	const struct mpll_config *mpll_cfg;
> -	const struct curr_ctrl *cur_ctr;
> -	enum imx_hdmi_devtype dev_type;
> -
> -};
> -
> -int imx_hdmi_platform_register(struct platform_device *pdev,
> -			       const struct imx_hdmi_plat_data *plat_data);
> -int imx_hdmi_platform_unregister(struct platform_device *pdev);

Doesn't this change belong in the previous splitting patch?

>  #endif /* __IMX_HDMI_H__ */
> diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
> index ab31848..560e1d3 100644
> --- a/drivers/staging/imx-drm/Kconfig
> +++ b/drivers/staging/imx-drm/Kconfig
> @@ -50,5 +50,6 @@ config DRM_IMX_IPUV3
>  config DRM_IMX_HDMI
>  	tristate "Freescale i.MX DRM HDMI"
>  	depends on DRM_IMX
> +	select DRM_DW_HDMI
>  	help
>  	  Choose this if you want to use HDMI on i.MX6.
> diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
> index 809027d..f3ecd89 100644
> --- a/drivers/staging/imx-drm/Makefile
> +++ b/drivers/staging/imx-drm/Makefile
> @@ -9,4 +9,4 @@ obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
>  
>  imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
>  obj-$(CONFIG_DRM_IMX_IPUV3)	+= imx-ipuv3-crtc.o
> -obj-$(CONFIG_DRM_IMX_HDMI) += imx-hdmi.o dw_hdmi-imx.o
> +obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o
> diff --git a/drivers/staging/imx-drm/dw_hdmi-imx.c b/drivers/staging/imx-drm/dw_hdmi-imx.c
> index 0db978e..4b48ea6 100644
> --- a/drivers/staging/imx-drm/dw_hdmi-imx.c
> +++ b/drivers/staging/imx-drm/dw_hdmi-imx.c

All other files in imx-drm/ are named imx-xyz.

no underscore either.

I wonder if they are ok with dw_hdmi-imx.c

How about imx-dw-hdmi.c 
and imx-dw-hdmi.h ?

> @@ -10,14 +10,14 @@
>  #include <linux/platform_device.h>
>  #include <linux/mfd/syscon.h>
>  #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
> +#include <drm/bridge/dw_hdmi.h>
>  #include <video/imx-ipu-v3.h>
>  #include <linux/regmap.h>
>  #include <linux/clk.h>
>  
>  #include "imx-drm.h"
> -#include "imx-hdmi.h"
>  
>  
> -static const struct of_device_id imx_hdmi_imx_ids[] = {
> +static const struct of_device_id dw_hdmi_imx_ids[] = {
>  	{ .compatible = "fsl,imx6q-hdmi",
>  	  .data = &imx6q_hdmi_drv_data

Weren't there multiple compatible strings in imx-hdmi.c?

>  	}, {
> @@ -178,38 +178,38 @@ static const struct of_device_id imx_hdmi_imx_ids[] = {
>  	},
>  	{},
>  };
> -MODULE_DEVICE_TABLE(of, imx_hdmi_imx_dt_ids);
> +MODULE_DEVICE_TABLE(of, dw_hdmi_imx_dt_ids);
>  

...

> diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
> new file mode 100644
> index 0000000..6683b63
> --- /dev/null
> +++ b/include/drm/bridge/dw_hdmi.h
> @@ -0,0 +1,57 @@
> +/*
> + * Copyright (C) 2011 Freescale Semiconductor, Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
> +
> +#ifndef __DW_HDMI_H__
> +#define __DW_HDMI_H__
> +
> +#include <drm/drmP.h>
> +
> +enum {
> +	RES_8,
> +	RES_10,
> +	RES_12,
> +	RES_MAX,
> +};
> +
> +enum dw_hdmi_devtype {
> +	IMX6Q_HDMI,
> +	IMX6DL_HDMI,
> +};

This enum going into dw_hdmi.
Does this mean that dw hdmi code still has some SoC specific things left?
Where is this needed.

> +
> +struct mpll_config {
> +	unsigned long mpixelclock;
> +	struct {
> +		u16 cpce;
> +		u16 gmp;
> +	} res[RES_MAX];
> +};
> +
> +struct curr_ctrl {
> +	unsigned long mpixelclock;
> +	u16 curr[RES_MAX];
> +};
> +
> +struct dw_hdmi_plat_data {
> +	void * (*setup)(struct platform_device *pdev);
> +	void (*exit)(void *priv);
> +	void (*encoder_commit)(void *priv, struct drm_encoder *encoder);
> +	void (*encoder_prepare)(struct drm_connector *connector,
> +				struct drm_encoder *encoder);
> +	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
> +					   struct drm_display_mode *mode);
> +	const struct mpll_config *mpll_cfg;
> +	const struct curr_ctrl *cur_ctr;
> +	enum dw_hdmi_devtype dev_type;
> +
> +};
> +
> +int dw_hdmi_platform_register(struct platform_device *pdev,
> +			      const struct dw_hdmi_plat_data *plat_data);
> +int dw_hdmi_platform_unregister(struct platform_device *pdev);
> +#endif /* __IMX_HDMI_H__ */
> 

Regards
ZubairLK
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