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rk mipi: fixed the bug of send generic short packet in rk32_mipi_dsi.c

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DTYPE_GEN_SWRITE_2P:
	 	Generic Short WRITE Packet with 2 parameters(one command
		and one parameter). But the users may send the packet more
		than 2 parameters.

	DTYPE_GEN_SWRITE_1P:
		Generic Short WRITE Packet with 1 parameters(one command
		without parameter).
	DTYPE_GEN_SWRITE_0P:
		Generic Short WRITE Packet with 0 parameters(nop packet
		without command and parameter).
This commit is contained in:
chenyifu
2014-11-18 09:57:13 +08:00
parent 470eda6f9a
commit ce207ae224
1 changed files with 15 additions and 5 deletions
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20
drivers/video/rockchip/transmitter/rk32_mipi_dsi.c
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@@ -1124,8 +1124,20 @@ static int rk32_mipi_dsi_send_packet(void *arg, unsigned char cmds[], u32 length
data = (dsi->vid << 6) | type;
data |= (liTmp & 0xffff) << 8;
break;
case DTYPE_GEN_SWRITE_2P:
case DTYPE_GEN_SWRITE_2P: /* one command and one parameter */
rk32_dsi_set_bits(dsi, regs[0], gen_sw_2p_tx);
if (liTmp <= 2) {
/* It is used for normal Generic Short WRITE Packet with 2 parameters. */
data = type;
data |= regs[2] << 8; /* dcs command */
data |= regs[3] << 16; /* parameter of command */
break;
}
/* The below is used for Generic Short WRITE Packet with 2 parameters
* that more than 2 parameters. Though it is illegal dcs command, we can't
* make sure the users do not send that command.
*/
for (i = 0; i < liTmp; i++) {
regs[i] = regs[i+2];
}
@@ -1145,16 +1157,14 @@ static int rk32_mipi_dsi_send_packet(void *arg, unsigned char cmds[], u32 length
data = type;
data |= (liTmp & 0xffff) << 8;
break;
case DTYPE_GEN_SWRITE_1P:
case DTYPE_GEN_SWRITE_1P: /* one command without parameter */
rk32_dsi_set_bits(dsi, regs[0], gen_sw_1p_tx);
data = type;
data |= regs[2] << 8;
data |= regs[3] << 16;
break;
case DTYPE_GEN_SWRITE_0P:
case DTYPE_GEN_SWRITE_0P: /* nop packet without command and parameter */
rk32_dsi_set_bits(dsi, regs[0], gen_sw_0p_tx);
data = type;
data |= regs[2] << 8;
break;
default:
printk("0x%x:this type not suppport!\n", type);