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Commit fe811ab2 authored by Visweswara Tanuku's avatar Visweswara Tanuku
Browse files

serial: msm_geni_serial: Extend packing configurations 



Currently packing configuration is done for 8bits per
transfer word as default as part of baud rate change.

Extend packing configuration when there is a request for
5bits/6bits/7bits per transfer word from set_termios.

Change-Id: I01341c94eef3b3697db3fce7846042cbe9e9f2af
Signed-off-by: default avatarVisweswara Tanuku <quic_vtanuku@quicinc.com>
parent 587da9fc

drivers/tty/serial/msm_geni_serial.c

+4 −9
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.

 */



#include <linux/bitmap.h>
@@ -2371,15 +2372,7 @@ static int msm_geni_serial_port_setup(struct uart_port *uport) 
	if (!uart_console(uport)) {

		/* For now only assume FIFO mode. */

		msm_port->xfer_mode = SE_DMA;

		se_get_packing_config(8, 4, false, &cfg0, &cfg1);

		geni_write_reg_nolog(cfg0, uport->membase,

						SE_GENI_TX_PACKING_CFG0);

		geni_write_reg_nolog(cfg1, uport->membase,

						SE_GENI_TX_PACKING_CFG1);

		geni_write_reg_nolog(cfg0, uport->membase,

						SE_GENI_RX_PACKING_CFG0);

		geni_write_reg_nolog(cfg1, uport->membase,

						SE_GENI_RX_PACKING_CFG1);

		se_config_packing(uport->membase, 8, 4, false);

		if (!msm_port->rx_fifo) {

			ret = -ENOMEM;

			goto exit_portsetup;
@@ -2535,6 +2528,8 @@ static void geni_serial_write_term_regs(struct uart_port *uport, u32 loopback, 
							SE_UART_RX_WORD_LEN);

	geni_write_reg_nolog(stop_bit_len, uport->membase,

						SE_UART_TX_STOP_BIT_LEN);

	if (!uart_console(uport))

		se_config_packing(uport->membase, bits_per_char, 4, false);

	geni_write_reg_nolog(s_clk_cfg, uport->membase, GENI_SER_M_CLK_CFG);

	geni_write_reg_nolog(s_clk_cfg, uport->membase, GENI_SER_S_CLK_CFG);

	geni_read_reg_nolog(uport->membase, GENI_SER_M_CLK_CFG);