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From 164a97c4370a29ee27145c5d1c44fe03ec2ce7b1 Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Wed, 20 Nov 2019 16:41:12 +0300
Subject: [PATCH] media: i2c: max9286: parse crossbard from cmdline
This allows to change crossbar by command line parameter
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
drivers/media/i2c/soc_camera/max9286.c | 93 +++++++++++++++++++---------------
1 file changed, 51 insertions(+), 42 deletions(-)
diff --git a/drivers/media/i2c/soc_camera/max9286.c b/drivers/media/i2c/soc_camera/max9286.c
index 3184ff1..b185566 100644
--- a/drivers/media/i2c/soc_camera/max9286.c
+++ b/drivers/media/i2c/soc_camera/max9286.c
@@ -56,6 +56,7 @@ struct max9286_priv {
int dbl;
int dt;
int hsgen;
+ char cb[16];
int hts;
int vts;
int hts_delay;
@@ -140,6 +141,10 @@ static int switchin = 0;
module_param(switchin, int, 0644);
MODULE_PARM_DESC(switchin, " COAX SWITCH IN+ and IN- (default: 0 - not switched)");
+static long crossbar = 0xba9876543210;
+module_param(crossbar, long, 0644);
+MODULE_PARM_DESC(crossbar, " Crossbar setup (default: ba9876543210 - reversed)");
+
enum {
RGB888_DT = 0,
RGB565_DT,
@@ -421,54 +426,53 @@ static void max9286_gmsl_link_setup(struct i2c_client *client, int idx)
switch (priv->dt) {
case YUV8_DT:
/* setup crossbar for YUV8/RAW8: reverse DVP bus */
- reg8_write(client, 0x20, 7);
- reg8_write(client, 0x21, 6);
- reg8_write(client, 0x22, 5);
- reg8_write(client, 0x23, 4);
- reg8_write(client, 0x24, 3);
- reg8_write(client, 0x25, 2);
- reg8_write(client, 0x26, 1);
- reg8_write(client, 0x27, 0);
+ reg8_write(client, 0x20, priv->cb[7]);
+ reg8_write(client, 0x21, priv->cb[6]);
+ reg8_write(client, 0x22, priv->cb[5]);
+ reg8_write(client, 0x23, priv->cb[4]);
+ reg8_write(client, 0x24, priv->cb[3]);
+ reg8_write(client, 0x25, priv->cb[2]);
+ reg8_write(client, 0x26, priv->cb[1]);
+ reg8_write(client, 0x27, priv->cb[0]);
/* this is second byte if DBL=1 */
- reg8_write(client, 0x30, 23);
- reg8_write(client, 0x31, 22);
- reg8_write(client, 0x32, 21);
- reg8_write(client, 0x33, 20);
- reg8_write(client, 0x34, 19);
- reg8_write(client, 0x35, 18);
- reg8_write(client, 0x36, 17);
- reg8_write(client, 0x37, 16);
-
+ reg8_write(client, 0x30, priv->cb[7] + 16);
+ reg8_write(client, 0x31, priv->cb[6] + 16);
+ reg8_write(client, 0x32, priv->cb[5] + 16);
+ reg8_write(client, 0x33, priv->cb[4] + 16);
+ reg8_write(client, 0x34, priv->cb[3] + 16);
+ reg8_write(client, 0x35, priv->cb[2] + 16);
+ reg8_write(client, 0x36, priv->cb[1] + 16);
+ reg8_write(client, 0x37, priv->cb[0] + 16);
break;
case RAW12_DT:
/* setup crossbar for RAW12: reverse DVP bus */
- reg8_write(client, 0x20, 11);
- reg8_write(client, 0x21, 10);
- reg8_write(client, 0x22, 9);
- reg8_write(client, 0x23, 8);
- reg8_write(client, 0x24, 7);
- reg8_write(client, 0x25, 6);
- reg8_write(client, 0x26, 5);
- reg8_write(client, 0x27, 4);
- reg8_write(client, 0x28, 3);
- reg8_write(client, 0x29, 2);
- reg8_write(client, 0x2a, 1);
- reg8_write(client, 0x2b, 0);
+ reg8_write(client, 0x20, priv->cb[11]);
+ reg8_write(client, 0x21, priv->cb[10]);
+ reg8_write(client, 0x22, priv->cb[9]);
+ reg8_write(client, 0x23, priv->cb[8]);
+ reg8_write(client, 0x24, priv->cb[7]);
+ reg8_write(client, 0x25, priv->cb[6]);
+ reg8_write(client, 0x26, priv->cb[5]);
+ reg8_write(client, 0x27, priv->cb[4]);
+ reg8_write(client, 0x28, priv->cb[3]);
+ reg8_write(client, 0x29, priv->cb[2]);
+ reg8_write(client, 0x2a, priv->cb[1]);
+ reg8_write(client, 0x2b, priv->cb[0]);
/* this is second byte if DBL=1 */
- reg8_write(client, 0x30, 27);
- reg8_write(client, 0x31, 26);
- reg8_write(client, 0x32, 25);
- reg8_write(client, 0x33, 24);
- reg8_write(client, 0x34, 23);
- reg8_write(client, 0x35, 22);
- reg8_write(client, 0x36, 21);
- reg8_write(client, 0x37, 20);
- reg8_write(client, 0x38, 19);
- reg8_write(client, 0x39, 18);
- reg8_write(client, 0x3a, 17);
- reg8_write(client, 0x3b, 16);
+ reg8_write(client, 0x30, priv->cb[11] + 16);
+ reg8_write(client, 0x31, priv->cb[10] + 16);
+ reg8_write(client, 0x32, priv->cb[9] + 16);
+ reg8_write(client, 0x33, priv->cb[8] + 16);
+ reg8_write(client, 0x34, priv->cb[7] + 16);
+ reg8_write(client, 0x35, priv->cb[6] + 16);
+ reg8_write(client, 0x36, priv->cb[5] + 16);
+ reg8_write(client, 0x37, priv->cb[4] + 16);
+ reg8_write(client, 0x38, priv->cb[3] + 16);
+ reg8_write(client, 0x39, priv->cb[2] + 16);
+ reg8_write(client, 0x3a, priv->cb[1] + 16);
+ reg8_write(client, 0x3b, priv->cb[0] + 16);
if (!priv->bws && priv->dbl)
dev_err(&client->dev, " BWS must be 27/32-bit for RAW12 in DBL mode\n");
@@ -733,7 +737,6 @@ static int max9286_parse_dt(struct i2c_client *client)
if (of_property_read_u32(np, "maxim,switchin", &priv->switchin))
priv->switchin = 0;
-
/* module params override dts */
if (him)
priv->him = him;
@@ -766,6 +769,12 @@ static int max9286_parse_dt(struct i2c_client *client)
if (switchin)
priv->switchin = switchin;
+ /* parse crossbar setup */
+ for (i = 0; i < 16; i++) {
+ priv->cb[i] = crossbar % 16;
+ crossbar /= 16;
+ }
+
for (i = 0; i < priv->links; i++) {
endpoint = of_graph_get_next_endpoint(np, endpoint);
if (!endpoint)
--
2.7.4
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