Commit 10ed1938 authored by Rui Miguel Silva's avatar Rui Miguel Silva Committed by Greg Kroah-Hartman
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greybus: sdio: send data block details at command request 



If SDIO request include data to be transfer send details (data blocks
and block size) in command request, as it seems some controllers need
this info prior to set the registers correctly.

Signed-off-by: default avatarRui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent 1ec5843e

drivers/staging/greybus/greybus_protocols.h

+2 −0
Original line number Diff line number Diff line
@@ -1088,6 +1088,8 @@ struct gb_sdio_command_request { 
#define GB_SDIO_CMD_BCR		0x03



	__le32	cmd_arg;

	__le16	data_blocks;

	__le16	data_blksz;

} __packed;



struct gb_sdio_command_response {

drivers/staging/greybus/sdio.c

+7 −1
Original line number Diff line number Diff line
@@ -373,8 +373,9 @@ static int gb_sdio_transfer(struct gb_sdio_host *host, struct mmc_data *data) 


static int gb_sdio_command(struct gb_sdio_host *host, struct mmc_command *cmd)

{

	struct gb_sdio_command_request request;

	struct gb_sdio_command_request request = {0};

	struct gb_sdio_command_response response;

	struct mmc_data *data = host->mrq->data;

	u8 cmd_flags;

	u8 cmd_type;

	int i;
@@ -427,6 +428,11 @@ static int gb_sdio_command(struct gb_sdio_host *host, struct mmc_command *cmd) 
	request.cmd_flags = cmd_flags;

	request.cmd_type = cmd_type;

	request.cmd_arg = cpu_to_le32(cmd->arg);

	/* some controllers need to know at command time data details */

	if (data) {

		request.data_blocks = cpu_to_le16(data->blocks);

		request.data_blksz = cpu_to_le16(data->blksz);

	}



	ret = gb_operation_sync(host->connection, GB_SDIO_TYPE_COMMAND,

				&request, sizeof(request), &response,