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Staging: ipack/devices/ipoctal: initialize the device in probe function

Initialize the device when registering it. Sometimes the user access to it
and the device is in an unknown state, so it could fail.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Samuel Iglesias Gonsálvez 13 年之前
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共有 1 个文件被更改,包括 14 次插入0 次删除
  1. 14 0
      drivers/staging/ipack/devices/ipoctal.c

+ 14 - 0
drivers/staging/ipack/devices/ipoctal.c

@@ -411,6 +411,20 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 	for (i = 0; i < NR_CHANNELS ; i++) {
 		ipoctal_write_io_reg(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
 				     CR_DISABLE_RX | CR_DISABLE_TX);
+		ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
+				     CR_CMD_RESET_RX);
+		ipoctal_write_cr_cmd(ipoctal, &ipoctal->chan_regs[i].u.w.cr,
+				     CR_CMD_RESET_TX);
+		ipoctal_write_io_reg(ipoctal,
+				     &ipoctal->chan_regs[i].u.w.mr,
+				     MR1_CHRL_8_BITS | MR1_ERROR_CHAR |
+				     MR1_RxINT_RxRDY); /* mr1 */
+		ipoctal_write_io_reg(ipoctal,
+				     &ipoctal->chan_regs[i].u.w.mr,
+				     0); /* mr2 */
+		ipoctal_write_io_reg(ipoctal,
+				     &ipoctal->chan_regs[i].u.w.csr,
+				     TX_CLK_9600  | RX_CLK_9600);
 	}
 
 	for (i = 0; i < IP_OCTAL_NB_BLOCKS; i++) {