openwrt/target/linux/bcm27xx/patches-6.1/950-0659-media-i2c-imx290-Support-60fps-in-2-lane-operation.patch
Álvaro Fernández Rojas 793f8ab62c bcm27xx: 6.1: add kernel patches
Add kernel patches for version 6.1.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-06-09 19:12:30 +02:00

72 lines
2.4 KiB
Diff

From 9d6d7d83aacafc8b0bbf7b2b9b8a7622c4060bec Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 16 Feb 2023 00:29:55 +0200
Subject: [PATCH] media: i2c: imx290: Support 60fps in 2 lane operation
Should be upstream commit 7d4f22ba99cc
Commit "97589ad61c73 media: i2c: imx290: Add support for 2 data lanes"
added support for running in two lane mode (instead of 4), but
without changing the link frequency that resulted in a max of 30fps.
Commit "98e0500eadb7 media: i2c: imx290: Add configurable link frequency
and pixel rate" then doubled the link frequency when in 2 lane mode,
but didn't undo the correction for running at only 30fps, just extending
horizontal blanking instead.
Remove the 30fps limit on 2 lane by correcting the register config
in accordance with the datasheet for 60fps operation over 2 lanes.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
drivers/media/i2c/imx290.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
--- a/drivers/media/i2c/imx290.c
+++ b/drivers/media/i2c/imx290.c
@@ -385,7 +385,7 @@ static const struct imx290_mode imx290_m
{
.width = 1920,
.height = 1080,
- .hmax = 4400,
+ .hmax = 2200,
.link_freq_index = FREQ_INDEX_1080P,
.data = imx290_1080p_settings,
.data_size = ARRAY_SIZE(imx290_1080p_settings),
@@ -393,7 +393,7 @@ static const struct imx290_mode imx290_m
{
.width = 1280,
.height = 720,
- .hmax = 6600,
+ .hmax = 3300,
.link_freq_index = FREQ_INDEX_720P,
.data = imx290_720p_settings,
.data_size = ARRAY_SIZE(imx290_720p_settings),
@@ -544,21 +544,10 @@ static int imx290_set_register_array(str
static int imx290_set_data_lanes(struct imx290 *imx290)
{
int ret = 0;
- u32 frsel;
-
- switch (imx290->nlanes) {
- case 2:
- default:
- frsel = 0x02;
- break;
- case 4:
- frsel = 0x01;
- break;
- }
imx290_write(imx290, IMX290_PHY_LANE_NUM, imx290->nlanes - 1, &ret);
imx290_write(imx290, IMX290_CSI_LANE_MODE, imx290->nlanes - 1, &ret);
- imx290_write(imx290, IMX290_FR_FDG_SEL, frsel, &ret);
+ imx290_write(imx290, IMX290_FR_FDG_SEL, 0x01, &ret);
return ret;
}