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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
80 lines
2.3 KiB
Diff
80 lines
2.3 KiB
Diff
From 79bbd278272416aa61c29bda88e79f8f6dd35903 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Wed, 31 Oct 2018 14:56:47 +0000
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Subject: [PATCH] media: ov5647: Add support for non-continuous clock
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mode
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The driver was only supporting continuous clock mode
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although this was not stated anywhere.
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Non-continuous clock saves a small amount of power and
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on some SoCs is easier to interface with.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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drivers/media/i2c/ov5647.c | 17 ++++++++++++++---
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1 file changed, 14 insertions(+), 3 deletions(-)
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--- a/drivers/media/i2c/ov5647.c
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+++ b/drivers/media/i2c/ov5647.c
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@@ -44,6 +44,7 @@
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#define PWDN_ACTIVE_DELAY_MS 20
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#define MIPI_CTRL00_CLOCK_LANE_GATE BIT(5)
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+#define MIPI_CTRL00_LINE_SYNC_ENABLE BIT(4)
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#define MIPI_CTRL00_BUS_IDLE BIT(2)
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#define MIPI_CTRL00_CLOCK_LANE_DISABLE BIT(0)
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@@ -95,6 +96,7 @@ struct ov5647 {
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int power_count;
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struct clk *xclk;
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struct gpio_desc *pwdn;
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+ unsigned int flags;
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};
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static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
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@@ -269,9 +271,15 @@ static int ov5647_set_virtual_channel(st
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static int ov5647_stream_on(struct v4l2_subdev *sd)
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{
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+ struct ov5647 *ov5647 = to_state(sd);
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+ u8 val = MIPI_CTRL00_BUS_IDLE;
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int ret;
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- ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, MIPI_CTRL00_BUS_IDLE);
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+ if (ov5647->flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK)
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+ val |= MIPI_CTRL00_CLOCK_LANE_GATE |
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+ MIPI_CTRL00_LINE_SYNC_ENABLE;
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+
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+ ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, val);
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if (ret < 0)
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return ret;
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@@ -568,7 +576,7 @@ static const struct v4l2_subdev_internal
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.open = ov5647_open,
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};
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-static int ov5647_parse_dt(struct device_node *np)
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+static int ov5647_parse_dt(struct device_node *np, struct ov5647 *sensor)
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{
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struct v4l2_fwnode_endpoint bus_cfg;
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struct device_node *ep;
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@@ -581,6 +589,9 @@ static int ov5647_parse_dt(struct device
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ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
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+ if (!ret)
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+ sensor->flags = bus_cfg.bus.mipi_csi2.flags;
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+
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of_node_put(ep);
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return ret;
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}
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@@ -600,7 +611,7 @@ static int ov5647_probe(struct i2c_clien
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return -ENOMEM;
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if (IS_ENABLED(CONFIG_OF) && np) {
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- ret = ov5647_parse_dt(np);
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+ ret = ov5647_parse_dt(np, sensor);
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if (ret) {
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dev_err(dev, "DT parsing error: %d\n", ret);
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return ret;
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