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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
2.9 KiB
Diff
80 lines
2.9 KiB
Diff
From 745b0fc9c914437695c6098daecd311b2cd88204 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 14:57:21 +0000
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Subject: [PATCH] media: tc358743: Add support for 972Mbit/s link freq.
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Adds register setups for running the CSI lanes at 972Mbit/s,
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which allows 1080P50 UYVY down 2 lanes.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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drivers/media/i2c/tc358743.c | 47 +++++++++++++++++++++++++-----------
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1 file changed, 33 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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@@ -1967,6 +1967,7 @@ static int tc358743_probe_of(struct tc35
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/*
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* The CSI bps per lane must be between 62.5 Mbps and 1 Gbps.
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* The default is 594 Mbps for 4-lane 1080p60 or 2-lane 720p60.
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+ * 972 Mbps allows 1080P50 UYVY over 2-lane.
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*/
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bps_pr_lane = 2 * endpoint->link_frequencies[0];
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if (bps_pr_lane < 62500000U || bps_pr_lane > 1000000000U) {
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@@ -1979,23 +1980,41 @@ static int tc358743_probe_of(struct tc35
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state->pdata.refclk_hz * state->pdata.pll_prd;
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/*
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- * FIXME: These timings are from REF_02 for 594 Mbps per lane (297 MHz
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- * link frequency). In principle it should be possible to calculate
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+ * FIXME: These timings are from REF_02 for 594 or 972 Mbps per lane
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+ * (297 MHz or 486 MHz link frequency).
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+ * In principle it should be possible to calculate
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* them based on link frequency and resolution.
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*/
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- if (bps_pr_lane != 594000000U)
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+ switch (bps_pr_lane) {
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+ default:
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dev_warn(dev, "untested bps per lane: %u bps\n", bps_pr_lane);
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- state->pdata.lineinitcnt = 0xe80;
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- state->pdata.lptxtimecnt = 0x003;
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- /* tclk-preparecnt: 3, tclk-zerocnt: 20 */
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- state->pdata.tclk_headercnt = 0x1403;
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- state->pdata.tclk_trailcnt = 0x00;
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- /* ths-preparecnt: 3, ths-zerocnt: 1 */
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- state->pdata.ths_headercnt = 0x0103;
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- state->pdata.twakeup = 0x4882;
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- state->pdata.tclk_postcnt = 0x008;
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- state->pdata.ths_trailcnt = 0x2;
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- state->pdata.hstxvregcnt = 0;
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+ case 594000000U:
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+ state->pdata.lineinitcnt = 0xe80;
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+ state->pdata.lptxtimecnt = 0x003;
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+ /* tclk-preparecnt: 3, tclk-zerocnt: 20 */
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+ state->pdata.tclk_headercnt = 0x1403;
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+ state->pdata.tclk_trailcnt = 0x00;
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+ /* ths-preparecnt: 3, ths-zerocnt: 1 */
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+ state->pdata.ths_headercnt = 0x0103;
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+ state->pdata.twakeup = 0x4882;
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+ state->pdata.tclk_postcnt = 0x008;
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+ state->pdata.ths_trailcnt = 0x2;
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+ state->pdata.hstxvregcnt = 0;
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+ break;
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+ case 972000000U:
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+ state->pdata.lineinitcnt = 0x1b58;
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+ state->pdata.lptxtimecnt = 0x007;
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+ /* tclk-preparecnt: 6, tclk-zerocnt: 40 */
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+ state->pdata.tclk_headercnt = 0x2806;
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+ state->pdata.tclk_trailcnt = 0x00;
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+ /* ths-preparecnt: 6, ths-zerocnt: 8 */
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+ state->pdata.ths_headercnt = 0x0806;
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+ state->pdata.twakeup = 0x4268;
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+ state->pdata.tclk_postcnt = 0x008;
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+ state->pdata.ths_trailcnt = 0x5;
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+ state->pdata.hstxvregcnt = 0;
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+ break;
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+ }
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state->reset_gpio = devm_gpiod_get_optional(dev, "reset",
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GPIOD_OUT_LOW);
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