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Mon, 9 Oct 2023 08:09:50 -0500 From: Jai Luthra To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Tomi Valkeinen CC: , , , , Laurent Pinchart , Mauro Carvalho Chehab , Maxime Ripard , , Benoit Parrot , Vaishnav Achath , Vignesh Raghavendra , , , , , Martyn Welch , Julien Massot Subject: [PATCH v10 06/13] media: cadence: csi2rx: Configure DPHY using link freq Date: Mon, 9 Oct 2023 18:39:32 +0530 Message-ID: <20231009-upstream_csi-v10-6-330aaed24c5d@ti.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231009-upstream_csi-v10-0-330aaed24c5d@ti.com> References: <20231009-upstream_csi-v10-0-330aaed24c5d@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1901; i=j-luthra@ti.com; h=from:subject:message-id; bh=RUZIs/V1zB7ojxrNBwsr2VePDUlHFcaYY3FI90aQFqc=; b=owEBbQKS/ZANAwAIAUPekfkkmnFFAcsmYgBlI/sqauE21D0LzrllxQ8Zm96qKPACTyyvIfOKE DfQrHtbhmSJAjMEAAEIAB0WIQRN4NgY5dV16NRar8VD3pH5JJpxRQUCZSP7KgAKCRBD3pH5JJpx RbiRD/sGU8AH/zCNvt5XjV9NEqO8d+OHg3Sue5Gk+a99KX6/iJNH6pKTXw2DwrGfI91tLvelI/P OTqtoxLacF408Tb77W/fide0gGKvZZMVjIR7ybBERGtit7W6pqXmGy6aovFDvC5N3dQI1XVy75W oF3r87dS6mv+7rVDmjmNy6tJ1bNobHB50wGDLCEImiJ7njN1SeDYBq96X52URntPTYDhQNHtOq0 qf9C1uZ+FAWL+XOM/RaM4BYAWkBO3Nz+n3TO59XsfX5wBg96GEHAUYa4bYGPtNw8OsM3jiUli4a Tydd5Wl2lk6QoZeMBTFSN473kkcKz7pJe4K7tAFcTTNbxJPlpb+fLRUy3duGbDqDvVdhu1AsQKm UrLcXIAMNEkx/04iHhp7i0x6QIqmwJx7qid0arCVM5uZW4fj+rGXhspyKqzYp6G1B4QxkUoOxw9 toj+ebKr+85lDxJg61/HEkGhJSsMLuiRdGzoIeVX5XEQBKFQrwIba5FHKqUecXArU7Q7afBAUDN bEMHfpAcGiuMg4bWzi8OaZoeVe3PEajHz8oDwfMhrpKQKi4NJxo97jF966uaAwYngkFGFR87NQn 5iAwRcDgEKTV43xizNfPlO2X/+yD1vCIjwVgx+LDQayvc9V1tKYQgCOSY5O2bfyqCB8cd4OOwYV +5G0xqErUCTcBpg== X-Developer-Key: i=j-luthra@ti.com; a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231009_061003_912393_2D3ED476 X-CRM114-Status: GOOD ( 13.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Pratyush Yadav Some platforms like TI's J721E can have the CSI2RX paired with an external DPHY. Use the generic PHY framework to configure the DPHY with the correct link frequency. Signed-off-by: Pratyush Yadav Tested-by: Julien Massot Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen Reviewed-by: Maxime Ripard Co-developed-by: Jai Luthra Signed-off-by: Jai Luthra --- drivers/media/platform/cadence/cdns-csi2rx.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index f9b41451f4a4..77e2413c345a 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -145,8 +145,32 @@ static void csi2rx_reset(struct csi2rx_priv *csi2rx) static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx) { union phy_configure_opts opts = { }; + struct phy_configure_opts_mipi_dphy *cfg = &opts.mipi_dphy; + struct v4l2_subdev_format sd_fmt = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .pad = CSI2RX_PAD_SINK, + }; + const struct csi2rx_fmt *fmt; + s64 link_freq; int ret; + ret = v4l2_subdev_call_state_active(&csi2rx->subdev, pad, get_fmt, + &sd_fmt); + if (ret < 0) + return ret; + + fmt = csi2rx_get_fmt_by_code(sd_fmt.format.code); + + link_freq = v4l2_get_link_freq(csi2rx->source_subdev->ctrl_handler, + fmt->bpp, 2 * csi2rx->num_lanes); + if (link_freq < 0) + return link_freq; + + ret = phy_mipi_dphy_get_default_config_for_hsclk(link_freq, + csi2rx->num_lanes, cfg); + if (ret) + return ret; + ret = phy_power_on(csi2rx->dphy); if (ret) return ret;