diff options
Diffstat (limited to 'drivers/input/touchscreen/cyttsp_spi.c')
| -rw-r--r-- | drivers/input/touchscreen/cyttsp_spi.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/drivers/input/touchscreen/cyttsp_spi.c b/drivers/input/touchscreen/cyttsp_spi.c index 861b7f77605b..1df625337b84 100644 --- a/drivers/input/touchscreen/cyttsp_spi.c +++ b/drivers/input/touchscreen/cyttsp_spi.c @@ -8,6 +8,7 @@ * * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> + * Copyright (C) 2013 Cypress Semiconductor * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -19,11 +20,7 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * Contact Cypress Semiconductor at www.cypress.com <kev@cypress.com> + * Contact Cypress Semiconductor at www.cypress.com <ttdrivers@cypress.com> * */ @@ -43,19 +40,19 @@ #define CY_SPI_DATA_BUF_SIZE (CY_SPI_CMD_BYTES + CY_SPI_DATA_SIZE) #define CY_SPI_BITS_PER_WORD 8 -static int cyttsp_spi_xfer(struct cyttsp *ts, +static int cyttsp_spi_xfer(struct device *dev, u8 *xfer_buf, u8 op, u8 reg, u8 *buf, int length) { - struct spi_device *spi = to_spi_device(ts->dev); + struct spi_device *spi = to_spi_device(dev); struct spi_message msg; struct spi_transfer xfer[2]; - u8 *wr_buf = &ts->xfer_buf[0]; - u8 *rd_buf = &ts->xfer_buf[CY_SPI_DATA_BUF_SIZE]; + u8 *wr_buf = &xfer_buf[0]; + u8 *rd_buf = &xfer_buf[CY_SPI_DATA_BUF_SIZE]; int retval; int i; if (length > CY_SPI_DATA_SIZE) { - dev_err(ts->dev, "%s: length %d is too big.\n", + dev_err(dev, "%s: length %d is too big.\n", __func__, length); return -EINVAL; } @@ -95,13 +92,13 @@ static int cyttsp_spi_xfer(struct cyttsp *ts, break; default: - dev_err(ts->dev, "%s: bad operation code=%d\n", __func__, op); + dev_err(dev, "%s: bad operation code=%d\n", __func__, op); return -EINVAL; } retval = spi_sync(spi, &msg); if (retval < 0) { - dev_dbg(ts->dev, "%s: spi_sync() error %d, len=%d, op=%d\n", + dev_dbg(dev, "%s: spi_sync() error %d, len=%d, op=%d\n", __func__, retval, xfer[1].len, op); /* @@ -113,14 +110,13 @@ static int cyttsp_spi_xfer(struct cyttsp *ts, if (rd_buf[CY_SPI_SYNC_BYTE] != CY_SPI_SYNC_ACK1 || rd_buf[CY_SPI_SYNC_BYTE + 1] != CY_SPI_SYNC_ACK2) { - - dev_dbg(ts->dev, "%s: operation %d failed\n", __func__, op); + dev_dbg(dev, "%s: operation %d failed\n", __func__, op); for (i = 0; i < CY_SPI_CMD_BYTES; i++) - dev_dbg(ts->dev, "%s: test rd_buf[%d]:0x%02x\n", + dev_dbg(dev, "%s: test rd_buf[%d]:0x%02x\n", __func__, i, rd_buf[i]); for (i = 0; i < length; i++) - dev_dbg(ts->dev, "%s: test buf[%d]:0x%02x\n", + dev_dbg(dev, "%s: test buf[%d]:0x%02x\n", __func__, i, buf[i]); return -EIO; @@ -129,16 +125,18 @@ static int cyttsp_spi_xfer(struct cyttsp *ts, return 0; } -static int cyttsp_spi_read_block_data(struct cyttsp *ts, +static int cyttsp_spi_read_block_data(struct device *dev, u8 *xfer_buf, u8 addr, u8 length, void *data) { - return cyttsp_spi_xfer(ts, CY_SPI_RD_OP, addr, data, length); + return cyttsp_spi_xfer(dev, xfer_buf, CY_SPI_RD_OP, addr, data, + length); } -static int cyttsp_spi_write_block_data(struct cyttsp *ts, +static int cyttsp_spi_write_block_data(struct device *dev, u8 *xfer_buf, u8 addr, u8 length, const void *data) { - return cyttsp_spi_xfer(ts, CY_SPI_WR_OP, addr, (void *)data, length); + return cyttsp_spi_xfer(dev, xfer_buf, CY_SPI_WR_OP, addr, (void *)data, + length); } static const struct cyttsp_bus_ops cyttsp_spi_bus_ops = { |