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f5919b65d4
Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
95 lines
3.2 KiB
Diff
95 lines
3.2 KiB
Diff
From 39770203c368829b4ddb8b01a68870cc336abc41 Mon Sep 17 00:00:00 2001
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From: Philipp Zabel <p.zabel@pengutronix.de>
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Date: Thu, 21 Sep 2017 17:30:24 +0200
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Subject: [PATCH 326/454] tc358743: fix connected/active CSI-2 lane reporting
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g_mbus_config was supposed to indicate all supported lane numbers, not
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only the number of those currently in active use. Since the TC358743
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can dynamically reduce the number of active lanes if the required
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bandwidth allows for it, report all lane numbers up to the connected
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number of lanes as supported in pdata mode.
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In device tree mode, do not report lane count and clock mode at all, as
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the receiver driver can determine these from the device tree.
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To allow communicating the number of currently active lanes, add a new
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bitfield to the v4l2_mbus_config flags. This is a temporary fix, to be
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used only until a better solution is found.
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Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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---
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drivers/media/i2c/tc358743.c | 30 ++++++++++++++++--------------
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include/media/v4l2-mediabus.h | 8 ++++++++
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2 files changed, 24 insertions(+), 14 deletions(-)
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--- a/drivers/media/i2c/tc358743.c
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+++ b/drivers/media/i2c/tc358743.c
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@@ -1458,28 +1458,29 @@ static int tc358743_g_mbus_config(struct
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struct v4l2_mbus_config *cfg)
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{
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struct tc358743_state *state = to_state(sd);
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+ const u32 mask = V4L2_MBUS_CSI2_LANE_MASK;
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+
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+ if (state->csi_lanes_in_use > state->bus.num_data_lanes)
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+ return -EINVAL;
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cfg->type = V4L2_MBUS_CSI2;
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+ cfg->flags = (state->csi_lanes_in_use << __ffs(mask)) & mask;
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+
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+ /* In DT mode, only report the number of active lanes */
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+ if (sd->dev->of_node)
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+ return 0;
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- /* Support for non-continuous CSI-2 clock is missing in the driver */
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- cfg->flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
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+ /* Support for non-continuous CSI-2 clock is missing in pdata mode */
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+ cfg->flags |= V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
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- switch (state->csi_lanes_in_use) {
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- case 1:
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+ if (state->bus.num_data_lanes > 0)
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cfg->flags |= V4L2_MBUS_CSI2_1_LANE;
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- break;
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- case 2:
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+ if (state->bus.num_data_lanes > 1)
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cfg->flags |= V4L2_MBUS_CSI2_2_LANE;
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- break;
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- case 3:
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+ if (state->bus.num_data_lanes > 2)
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cfg->flags |= V4L2_MBUS_CSI2_3_LANE;
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- break;
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- case 4:
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+ if (state->bus.num_data_lanes > 3)
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cfg->flags |= V4L2_MBUS_CSI2_4_LANE;
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- break;
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- default:
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- return -EINVAL;
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- }
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return 0;
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}
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@@ -1885,6 +1886,7 @@ static int tc358743_probe(struct i2c_cli
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if (pdata) {
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state->pdata = *pdata;
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state->bus.flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
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+ state->bus.num_data_lanes = 4;
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} else {
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err = tc358743_probe_of(state);
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if (err == -ENODEV)
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--- a/include/media/v4l2-mediabus.h
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+++ b/include/media/v4l2-mediabus.h
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@@ -63,6 +63,14 @@
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V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE)
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#define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \
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V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3)
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+/*
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+ * Number of lanes in use, 0 == use all available lanes (default)
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+ *
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+ * This is a temporary fix for devices that need to reduce the number of active
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+ * lanes for certain modes, until g_mbus_config() can be replaced with a better
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+ * solution.
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+ */
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+#define V4L2_MBUS_CSI2_LANE_MASK (0xf << 10)
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/**
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* enum v4l2_mbus_type - media bus type
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