linux-kernel - Re: [PATCH v2 2/3] usb: typec: ucsi: Import interface for UCSI transport

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Message-ID: <ZgQBXFzuZLJcmH4h@kuha.fi.intel.com>
Date: Wed, 27 Mar 2024 13:22:04 +0200
From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To: Pavan Holla <pholla@...omium.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Benson Leung <bleung@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>,
	Guenter Roeck <groeck@...omium.org>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org,
	Abhishek Pandit-Subedi <abhishekpandit@...omium.org>,
	chrome-platform@...ts.linux.dev
Subject: Re: [PATCH v2 2/3] usb: typec: ucsi: Import interface for UCSI
 transport

On Mon, Mar 25, 2024 at 11:42:26PM +0000, Pavan Holla wrote:
> Import include/linux/usb/ucsi.h and remove any duplicate declarations.
> 
> Signed-off-by: Pavan Holla <pholla@...omium.org>
> ---
>  drivers/usb/typec/ucsi/ucsi.h | 54 +------------------------------------------
>  1 file changed, 1 insertion(+), 53 deletions(-)

I'm pretty sure somebody already told you to merge this into 1/3, so
why haven't you done that?


> diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
> index 32daf5f58650..167951538030 100644
> --- a/drivers/usb/typec/ucsi/ucsi.h
> +++ b/drivers/usb/typec/ucsi/ucsi.h
> @@ -10,22 +10,13 @@
>  #include <linux/usb/typec.h>
>  #include <linux/usb/pd.h>
>  #include <linux/usb/role.h>
> +#include <linux/usb/ucsi.h>
>  #include <asm/unaligned.h>
>  
>  /* -------------------------------------------------------------------------- */
>  
> -struct ucsi;
> -struct ucsi_altmode;
>  struct dentry;
>  
> -/* UCSI offsets (Bytes) */
> -#define UCSI_VERSION			0
> -#define UCSI_CCI			4
> -#define UCSI_CONTROL			8
> -#define UCSI_MESSAGE_IN			16
> -#define UCSI_MESSAGE_OUT		32
> -#define UCSIv2_MESSAGE_OUT		272
> -
>  /* UCSI versions */
>  #define UCSI_VERSION_1_2	0x0120
>  #define UCSI_VERSION_2_0	0x0200
> @@ -42,48 +33,6 @@ struct dentry;
>   */
>  #define UCSI_SPEC_REVISION_TO_BCD(_v_)  (((_v_) + 1) << 8)
>  
> -/* Command Status and Connector Change Indication (CCI) bits */
> -#define UCSI_CCI_CONNECTOR(_c_)		(((_c_) & GENMASK(7, 1)) >> 1)
> -#define UCSI_CCI_LENGTH(_c_)		(((_c_) & GENMASK(15, 8)) >> 8)
> -#define UCSI_CCI_NOT_SUPPORTED		BIT(25)
> -#define UCSI_CCI_CANCEL_COMPLETE	BIT(26)
> -#define UCSI_CCI_RESET_COMPLETE		BIT(27)
> -#define UCSI_CCI_BUSY			BIT(28)
> -#define UCSI_CCI_ACK_COMPLETE		BIT(29)
> -#define UCSI_CCI_ERROR			BIT(30)
> -#define UCSI_CCI_COMMAND_COMPLETE	BIT(31)
> -
> -/**
> - * struct ucsi_operations - UCSI I/O operations
> - * @read: Read operation
> - * @sync_write: Blocking write operation
> - * @async_write: Non-blocking write operation
> - * @update_altmodes: Squashes duplicate DP altmodes
> - *
> - * Read and write routines for UCSI interface. @sync_write must wait for the
> - * Command Completion Event from the PPM before returning, and @async_write must
> - * return immediately after sending the data to the PPM.
> - */
> -struct ucsi_operations {
> -	int (*read)(struct ucsi *ucsi, unsigned int offset,
> -		    void *val, size_t val_len);
> -	int (*sync_write)(struct ucsi *ucsi, unsigned int offset,
> -			  const void *val, size_t val_len);
> -	int (*async_write)(struct ucsi *ucsi, unsigned int offset,
> -			   const void *val, size_t val_len);
> -	bool (*update_altmodes)(struct ucsi *ucsi, struct ucsi_altmode *orig,
> -				struct ucsi_altmode *updated);
> -};
> -
> -struct ucsi *ucsi_create(struct device *dev, const struct ucsi_operations *ops);
> -void ucsi_destroy(struct ucsi *ucsi);
> -int ucsi_register(struct ucsi *ucsi);
> -void ucsi_unregister(struct ucsi *ucsi);
> -void *ucsi_get_drvdata(struct ucsi *ucsi);
> -void ucsi_set_drvdata(struct ucsi *ucsi, void *data);
> -
> -void ucsi_connector_change(struct ucsi *ucsi, u8 num);
> -
>  /* -------------------------------------------------------------------------- */
>  
>  /* Commands */
> @@ -465,7 +414,6 @@ int ucsi_send_command(struct ucsi *ucsi, u64 command,
>  		      void *retval, size_t size);
>  
>  void ucsi_altmode_update_active(struct ucsi_connector *con);
> -int ucsi_resume(struct ucsi *ucsi);
>  
>  #if IS_ENABLED(CONFIG_POWER_SUPPLY)
>  int ucsi_register_port_psy(struct ucsi_connector *con);
> 
> -- 
> 2.44.0.396.g6e790dbe36-goog

-- 
heikki