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authorÁlvaro Fernández Rojas <noltari@gmail.com>2022-05-16 23:40:32 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2022-05-17 15:11:22 +0200
commit20ea6adbf199097c4f5f591ffee088340630dae4 (patch)
treed6719d95e136611a1c25bbf7789652d6d402779d /target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch
parentbca05bd072180dc38ef740b37ded9572a6db1981 (diff)
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bcm27xx: add support for linux v5.15
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch60
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch b/target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch
new file mode 100644
index 0000000000..01d22c2ef2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch
@@ -0,0 +1,60 @@
+From d3cbabced959831fb1f04565dd424ece48f1b831 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 31 Mar 2022 15:33:59 +0100
+Subject: [PATCH] media: i2c: imx258: Allow configuration of clock lane
+ behaviour
+
+The sensor supports the clock lane either remaining in HS mode
+during frame blanking, or dropping to LP11.
+
+Add configuration of the mode via V4L2_MBUS_CSI2_CONTINUOUS_CLOCK.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx258.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+--- a/drivers/media/i2c/imx258.c
++++ b/drivers/media/i2c/imx258.c
+@@ -72,6 +72,8 @@
+ /* Test Pattern Control */
+ #define IMX258_REG_TEST_PATTERN 0x0600
+
++#define IMX258_CLK_BLANK_STOP 0x4040
++
+ /* Orientation */
+ #define REG_MIRROR_FLIP_CONTROL 0x0101
+ #define REG_CONFIG_MIRROR_HFLIP 0x01
+@@ -848,6 +850,7 @@ struct imx258 {
+ const struct imx258_link_freq_config *link_freq_configs;
+ const s64 *link_freq_menu_items;
+ unsigned int nlanes;
++ unsigned int csi2_flags;
+
+ /*
+ * Mutex for serialized access:
+@@ -1300,6 +1303,15 @@ static int imx258_start_streaming(struct
+ return ret;
+ }
+
++ ret = imx258_write_reg(imx258, IMX258_CLK_BLANK_STOP,
++ IMX258_REG_VALUE_08BIT,
++ imx258->csi2_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK ?
++ 0 : 1);
++ if (ret) {
++ dev_err(&client->dev, "%s failed to set clock lane mode\n", __func__);
++ return ret;
++ }
++
+ /* Apply default values of current mode */
+ reg_list = &imx258->cur_mode->reg_list;
+ ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
+@@ -1703,6 +1715,8 @@ static int imx258_probe(struct i2c_clien
+ goto error_endpoint_poweron;
+ }
+
++ imx258->csi2_flags = ep.bus.mipi_csi2.flags;
++
+ /* Initialize subdev */
+ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops);
+