diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0999-media-rp1-csi2-Fix-missing-reg-writes.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0999-media-rp1-csi2-Fix-missing-reg-writes.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0999-media-rp1-csi2-Fix-missing-reg-writes.patch b/target/linux/bcm27xx/patches-6.1/950-0999-media-rp1-csi2-Fix-missing-reg-writes.patch new file mode 100644 index 0000000000..2a3915b6e3 --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-0999-media-rp1-csi2-Fix-missing-reg-writes.patch @@ -0,0 +1,36 @@ +From 62e8ab88d2c230dad122aabe2ad0e227d7ceba40 Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> +Date: Thu, 28 Sep 2023 10:42:22 +0300 +Subject: [PATCH] media: rp1: csi2: Fix missing reg writes + +The driver has two places where it writes a register based on a +condition, and when that condition is false, the driver presumes that +the register has the reset value. This is not a good idea, so fix those +places to always write the register. + +Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> +--- + drivers/media/platform/raspberrypi/rp1_cfe/csi2.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +--- a/drivers/media/platform/raspberrypi/rp1_cfe/csi2.c ++++ b/drivers/media/platform/raspberrypi/rp1_cfe/csi2.c +@@ -253,6 +253,7 @@ void csi2_start_channel(struct csi2_devi + */ + set_field(&ctrl, 0x3ff, LC_MASK); + set_field(&ctrl, 0x00, CH_MODE_MASK); ++ csi2_reg_write(csi2, CSI2_CH_FRAME_SIZE(channel), 0); + } + + set_field(&ctrl, dt, DT_MASK); +@@ -277,8 +278,8 @@ void csi2_open_rx(struct csi2_device *cs + { + dphy_start(&csi2->dphy); + +- if (!csi2->multipacket_line) +- csi2_reg_write(csi2, CSI2_CTRL, EOP_IS_EOL); ++ csi2_reg_write(csi2, CSI2_CTRL, ++ csi2->multipacket_line ? 0 : EOP_IS_EOL); + } + + void csi2_close_rx(struct csi2_device *csi2) |