linux-kernel - [PATCH v2 0/2] media: vsp1: Add FCP soft reset procedure

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Message-Id: <20250616-vspx-reset-v2-0-6cc12ed7e9bb@ideasonboard.com>
Date: Mon, 16 Jun 2025 14:14:23 +0200
From: Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Kieran Bingham <kieran.bingham+renesas@...asonboard.com>, 
 Niklas Söderlund <niklas.soderlund@...natech.se>
Cc: linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>, 
 Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>, 
 Koji Matsuoka <koji.matsuoka.xm@...esas.com>, 
 LUU HOAI <hoai.luu.ub@...esas.com>
Subject: [PATCH v2 0/2] media: vsp1: Add FCP soft reset procedure

Introduce the FCP soft reset procedure as documented in section 62.3.7.3
Reset Operation" of R-Car Gen4 Hardware Manual rev 1.21, and use it to
reset FCPD by upporting patch b4bc2410cd81 ("rcar-fcp: Add FCPVD reset
sequence for VSPD") from Renesas R-Car BSP 3.5.3.

Signed-off-by: Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>
---
Changes in v2:
- Drop VSPX reset
- Reset FCP in vsp1_reset_wpf()
- Apply reset for Gen4 as well
- Link to v1: https://lore.kernel.org/r/20250609-vspx-reset-v1-0-9f17277ff1e2@ideasonboard.com

---
Jacopo Mondi (1):
      media: rcar-fcp: Add rcar_fcp_soft_reset()

Koji Matsuoka (1):
      media: vsp1: Reset FCP after VSPD

 drivers/media/platform/renesas/rcar-fcp.c      | 41 ++++++++++++++++++++++++++
 drivers/media/platform/renesas/vsp1/vsp1_drv.c |  9 +++++-
 include/media/rcar-fcp.h                       |  5 ++++
 3 files changed, 54 insertions(+), 1 deletion(-)
---
base-commit: 4d2c3d70799f5eb210003613766bbd113bbebc1a
change-id: 20250609-vspx-reset-aff11587390c

Best regards,
-- 
Jacopo Mondi <jacopo.mondi+renesas@...asonboard.com>