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Commit 9cd60e06 authored by Rajesh Bharathwaj's avatar Rajesh Bharathwaj
Browse files

vxr7200: add init call 



Adding init call to handle boot_command_line variable
in the vxr7200 driver.

Change-Id: Ie322f457008638a414120e03405fb689dc64ee9a
Signed-off-by: default avatarRajesh Bharathwaj <rajeshbharathwaj@codeaurora.org>
parent eee689c2

drivers/misc/vxr7200.c

+29 −21
Original line number Diff line number Diff line
@@ -56,6 +56,8 @@ struct vxr7200 { 
	bool power_on;

};



static bool dsi_way;



static int vxr7200_read(struct vxr7200 *pdata, u8 *reg, u8 *buf, u32 size)

{

	struct i2c_client *client = pdata->i2c_client;
@@ -357,12 +359,11 @@ static void vxr7200_display_pwr_enable_vregs(struct vxr7200 *pdata) 
	devm_regulator_put(pdata->vddio);

}



static __init int vxr7200_probe(struct i2c_client *client,

static int vxr7200_probe(struct i2c_client *client,

	const struct i2c_device_id *id)

{

	int rc;

	struct vxr7200 *pdata;

	char *cmdline;

	u8 reg[4] = {0x00, 0x20, 0x01, 0x60};

	u8 buf[4] = {0x00, 0x0, 0x0, 0x0};
@@ -376,6 +377,9 @@ static __init int vxr7200_probe(struct i2c_client *client, 
		return -ENODEV;

	}



	if (dsi_way)

		return -EINVAL;



	pdata = devm_kzalloc(&client->dev,

		sizeof(struct vxr7200), GFP_KERNEL);

	if (!pdata)
@@ -383,22 +387,6 @@ static __init int vxr7200_probe(struct i2c_client *client, 


	pdata->gpioInit = false;



	cmdline = strnstr(boot_command_line, "msm_drm.dsi_display0=",

					 strlen(boot_command_line));

	if (cmdline) {

		cmdline = strnstr(boot_command_line,

			 "msm_drm.dsi_display0=dsi_sim_vid_display",

						strlen(boot_command_line));

		if (cmdline) {

			pr_debug("%s DSI SIM, going to dp init cmdline:%s\n",

					__func__, cmdline);

			goto dp_init;

		}

	}

	pr_debug("%s DSI way, cmdline:%s\n", __func__, cmdline);

	goto dsi_display;



dp_init:

	rc = vxr7200_parse_dt(&client->dev, pdata);

	if (rc) {

		pr_err("%s failed to parse device tree\n", __func__);
@@ -415,9 +403,6 @@ static __init int vxr7200_probe(struct i2c_client *client, 
	//vxr7200_write(pdata, 0x0A, 0x02);//Enable 4-lane DP

	vxr7200_read(pdata, reg, buf, 4);//Enable 4-lane DP



dsi_display:

	return rc;



err_dt_parse:

	devm_kfree(&client->dev, pdata);
@@ -502,6 +487,29 @@ static struct i2c_driver vxr7200_i2c_driver = { 
	},

	.id_table = vxr7200_id_table,

};



static int __init vxr7200_init(void)

{

	char *cmdline;



	cmdline = strnstr(boot_command_line,

			 "msm_drm.dsi_display0=dsi_sim_vid_display",

						strlen(boot_command_line));

	if (cmdline) {

		pr_debug("%s DSI SIM mode, going to dp init cmdline:%s\n",

					__func__, cmdline);

		dsi_way = false;

	} else {

		pr_debug("%s DSI WAY, going to dsi init cmdline:%s\n",

					__func__, cmdline);

		dsi_way = true;

	}



	return 0;



}



device_initcall(vxr7200_init);

module_i2c_driver(vxr7200_i2c_driver);

MODULE_DEVICE_TABLE(i2c, vxr7200_id_table);

MODULE_DESCRIPTION("VXR7200 DP2DSI Bridge");