From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
To: Benoit Parrot <bparrot@ti.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Pratyush Yadav <p.yadav@ti.com>,
Lokesh Vutla <lokeshvutla@ti.com>,
linux-media@vger.kernel.org
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Subject: [PATCH 06/28] media: ti-vpe: cal: use v4l2_get_link_freq
Date: Mon, 12 Apr 2021 14:34:35 +0300 [thread overview]
Message-ID: <20210412113457.328012-7-tomi.valkeinen@ideasonboard.com> (raw)
In-Reply-To: <20210412113457.328012-1-tomi.valkeinen@ideasonboard.com>
CAL driver uses V4L2_CID_PIXEL_RATE to get the required pixel rate, and
then changes that value to link rate before configuring the registers.
Rewrite the code to use v4l2_get_link_freq(), which simplifies the code
as we get the link rate directly, and it also adds support for
V4L2_CID_LINK_FREQ.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
drivers/media/platform/ti-vpe/cal-camerarx.c | 52 +++++++-------------
1 file changed, 19 insertions(+), 33 deletions(-)
diff --git a/drivers/media/platform/ti-vpe/cal-camerarx.c b/drivers/media/platform/ti-vpe/cal-camerarx.c
index 603405824738..974fcbb19547 100644
--- a/drivers/media/platform/ti-vpe/cal-camerarx.c
+++ b/drivers/media/platform/ti-vpe/cal-camerarx.c
@@ -45,22 +45,23 @@ static inline void camerarx_write(struct cal_camerarx *phy, u32 offset, u32 val)
* ------------------------------------------------------------------
*/
-static s64 cal_camerarx_get_external_rate(struct cal_camerarx *phy)
+static s64 cal_camerarx_get_ext_link_freq(struct cal_camerarx *phy)
{
- struct v4l2_ctrl *ctrl;
- s64 rate;
+ struct v4l2_fwnode_bus_mipi_csi2 *mipi_csi2 = &phy->endpoint.bus.mipi_csi2;
+ u32 num_lanes = mipi_csi2->num_data_lanes;
+ u32 bpp = phy->fmtinfo->bpp;
+ s64 freq;
- ctrl = v4l2_ctrl_find(phy->source->ctrl_handler, V4L2_CID_PIXEL_RATE);
- if (!ctrl) {
- phy_err(phy, "no pixel rate control in subdev: %s\n",
+ freq = v4l2_get_link_freq(phy->source->ctrl_handler, bpp, 2 * num_lanes);
+ if (freq < 0) {
+ phy_err(phy, "failed to get link freq for subdev: %s\n",
phy->source->name);
- return -EPIPE;
+ return freq;
}
- rate = v4l2_ctrl_g_ctrl_int64(ctrl);
- phy_dbg(3, phy, "Source Pixel Rate: %llu\n", rate);
+ phy_dbg(3, phy, "Source Link Freq: %llu\n", freq);
- return rate;
+ return freq;
}
static void cal_camerarx_lane_config(struct cal_camerarx *phy)
@@ -116,34 +117,19 @@ void cal_camerarx_disable(struct cal_camerarx *phy)
#define TCLK_MISS 1
#define TCLK_SETTLE 14
-static void cal_camerarx_config(struct cal_camerarx *phy, s64 external_rate)
+static void cal_camerarx_config(struct cal_camerarx *phy, s64 link_freq)
{
unsigned int reg0, reg1;
unsigned int ths_term, ths_settle;
- unsigned int csi2_ddrclk_khz;
- struct v4l2_fwnode_bus_mipi_csi2 *mipi_csi2 =
- &phy->endpoint.bus.mipi_csi2;
- u32 num_lanes = mipi_csi2->num_data_lanes;
/* DPHY timing configuration */
- /*
- * CSI-2 is DDR and we only count used lanes.
- *
- * csi2_ddrclk_khz = external_rate / 1000
- * / (2 * num_lanes) * phy->fmtinfo->bpp;
- */
- csi2_ddrclk_khz = div_s64(external_rate * phy->fmtinfo->bpp,
- 2 * num_lanes * 1000);
-
- phy_dbg(1, phy, "csi2_ddrclk_khz: %d\n", csi2_ddrclk_khz);
-
/* THS_TERM: Programmed value = floor(20 ns/DDRClk period) */
- ths_term = 20 * csi2_ddrclk_khz / 1000000;
+ ths_term = div_s64(20 * link_freq, 1000 * 1000 * 1000);
phy_dbg(1, phy, "ths_term: %d (0x%02x)\n", ths_term, ths_term);
/* THS_SETTLE: Programmed value = floor(105 ns/DDRClk period) + 4 */
- ths_settle = (105 * csi2_ddrclk_khz / 1000000) + 4;
+ ths_settle = div_s64(105 * link_freq, 1000 * 1000 * 1000) + 4;
phy_dbg(1, phy, "ths_settle: %d (0x%02x)\n", ths_settle, ths_settle);
reg0 = camerarx_read(phy, CAL_CSI2_PHY_REG0);
@@ -270,14 +256,14 @@ static void cal_camerarx_ppi_disable(struct cal_camerarx *phy)
static int cal_camerarx_start(struct cal_camerarx *phy)
{
- s64 external_rate;
+ s64 link_freq;
u32 sscounter;
u32 val;
int ret;
- external_rate = cal_camerarx_get_external_rate(phy);
- if (external_rate < 0)
- return external_rate;
+ link_freq = cal_camerarx_get_ext_link_freq(phy);
+ if (link_freq < 0)
+ return link_freq;
ret = v4l2_subdev_call(phy->source, core, s_power, 1);
if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) {
@@ -325,7 +311,7 @@ static int cal_camerarx_start(struct cal_camerarx *phy)
camerarx_read(phy, CAL_CSI2_PHY_REG0);
/* Program the PHY timing parameters. */
- cal_camerarx_config(phy, external_rate);
+ cal_camerarx_config(phy, link_freq);
/*
* b. Assert the FORCERXMODE signal.
--
2.25.1
next prev parent reply other threads:[~2021-04-12 11:35 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 11:34 [PATCH 00/28] media: ti-vpe: cal: prepare for multistream support Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 01/28] media: ti-vpe: cal: add g/s_parm for legacy API Tomi Valkeinen
2021-04-17 23:01 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 02/28] media: ti-vpe: cal: fix error handling in cal_camerarx_create Tomi Valkeinen
2021-04-17 23:05 ` Laurent Pinchart
2021-04-19 8:24 ` Tomi Valkeinen
2021-04-19 8:31 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 03/28] media: ti-vpe: cal: remove unused cal_camerarx->dev field Tomi Valkeinen
2021-04-18 0:43 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 04/28] media: ti-vpe: cal: rename "sensor" to "source" Tomi Valkeinen
2021-04-17 23:18 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 05/28] media: ti-vpe: cal: move global config from cal_ctx_wr_dma_config to runtime resume Tomi Valkeinen
2021-04-17 23:27 ` Laurent Pinchart
2021-04-12 11:34 ` Tomi Valkeinen [this message]
2021-04-18 11:48 ` [PATCH 06/28] media: ti-vpe: cal: use v4l2_get_link_freq Laurent Pinchart
2021-04-12 11:34 ` [PATCH 07/28] media: ti-vpe: cal: add cal_ctx_prepare/unprepare Tomi Valkeinen
2021-04-18 13:30 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 08/28] media: ti-vpe: cal: change index and cport to u8 Tomi Valkeinen
2021-04-18 11:55 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 09/28] media: ti-vpe: cal: Add PPI context Tomi Valkeinen
2021-04-18 12:17 ` Laurent Pinchart
2021-04-19 9:01 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 10/28] media: ti-vpe: cal: Add pixel processing context Tomi Valkeinen
2021-04-18 12:20 ` Laurent Pinchart
2021-04-18 12:23 ` Laurent Pinchart
2021-04-19 9:17 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 11/28] media: ti-vpe: cal: rename cal_ctx->index to dma_ctx Tomi Valkeinen
2021-04-18 12:22 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 12/28] media: ti-vpe: cal: rename CAL_HL_IRQ_MASK Tomi Valkeinen
2021-04-18 12:29 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 13/28] media: ti-vpe: cal: clean up CAL_CSI2_VC_IRQ_* macros Tomi Valkeinen
2021-04-18 12:32 ` Laurent Pinchart
2021-04-19 10:29 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 14/28] media: ti-vpe: cal: catch VC errors Tomi Valkeinen
2021-04-18 12:38 ` Laurent Pinchart
2021-04-19 11:19 ` Tomi Valkeinen
2021-04-28 23:44 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 15/28] media: ti-vpe: cal: remove wait when stopping camerarx Tomi Valkeinen
2021-04-18 12:46 ` Laurent Pinchart
2021-04-19 11:29 ` Tomi Valkeinen
2021-04-28 23:57 ` Laurent Pinchart
2021-05-04 7:56 ` Tomi Valkeinen
2021-06-04 13:44 ` Laurent Pinchart
2021-06-07 10:41 ` Tomi Valkeinen
2021-06-09 12:31 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 16/28] media: ti-vpe: cal: disable ppi and pix proc at ctx_stop Tomi Valkeinen
2021-04-18 12:49 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 17/28] media: ti-vpe: cal: allocate pix proc dynamically Tomi Valkeinen
2021-04-18 12:59 ` Laurent Pinchart
2021-04-19 11:45 ` Tomi Valkeinen
2021-04-29 0:04 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 18/28] media: ti-vpe: cal: add 'use_pix_proc' field Tomi Valkeinen
2021-04-18 13:00 ` Laurent Pinchart
2021-04-19 11:53 ` Tomi Valkeinen
2021-04-29 0:07 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 19/28] media: ti-vpe: cal: add cal_ctx_wr_dma_enable and fix a race Tomi Valkeinen
2021-04-18 13:04 ` Laurent Pinchart
2021-04-19 12:02 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 20/28] media: ti-vpe: cal: add vc and datatype fields to cal_ctx Tomi Valkeinen
2021-04-18 13:06 ` Laurent Pinchart
2021-04-19 12:07 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 21/28] media: ti-vpe: cal: fix cal_ctx_v4l2_register error handling Tomi Valkeinen
2021-04-18 13:09 ` Laurent Pinchart
2021-04-20 10:50 ` Tomi Valkeinen
2021-04-20 11:17 ` Tomi Valkeinen
2021-04-29 0:10 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 22/28] media: ti-vpe: cal: set field always to V4L2_FIELD_NONE Tomi Valkeinen
2021-04-18 13:14 ` Laurent Pinchart
2021-04-19 12:34 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 23/28] media: ti-vpe: cal: fix typo in a comment Tomi Valkeinen
2021-04-18 13:14 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 24/28] media: ti-vpe: cal: add mbus_code support to cal_mc_enum_fmt_vid_cap Tomi Valkeinen
2021-04-18 13:17 ` Laurent Pinchart
2021-04-19 12:50 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 25/28] media: ti-vpe: cal: rename non-MC funcs to cal_legacy_* Tomi Valkeinen
2021-04-18 13:18 ` Laurent Pinchart
2021-04-12 11:34 ` [PATCH 26/28] media: ti-vpe: cal: init ctx->v_fmt correctly in MC mode Tomi Valkeinen
2021-04-18 13:21 ` Laurent Pinchart
2021-04-19 13:01 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 27/28] media: ti-vpe: cal: remove cal_camerarx->fmtinfo Tomi Valkeinen
2021-04-18 13:24 ` Laurent Pinchart
2021-04-19 13:08 ` Tomi Valkeinen
2021-04-12 11:34 ` [PATCH 28/28] media: ti-vpe: cal: support 8 DMA contexts Tomi Valkeinen
2021-04-18 13:29 ` Laurent Pinchart
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210412113457.328012-7-tomi.valkeinen@ideasonboard.com \
--to=tomi.valkeinen@ideasonboard.com \
--cc=bparrot@ti.com \
--cc=laurent.pinchart@ideasonboard.com \
--cc=linux-media@vger.kernel.org \
--cc=lokeshvutla@ti.com \
--cc=p.yadav@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).