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