From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sowjanya Komatineni Subject: [RFC PATCH v1 13/18] gpu: host1x: mipi: Add of_tegra_mipi_request() API Date: Tue, 9 Jun 2020 23:02:35 -0700 Message-ID: <1591768960-31648-14-git-send-email-skomatineni@nvidia.com> References: <1591768960-31648-1-git-send-email-skomatineni@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1591768960-31648-1-git-send-email-skomatineni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: skomatineni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, frankc-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, hverkuil-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org, sakari.ailus-X3B1VOXEql0@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, helen.koike-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org Cc: digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, sboyd-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-tegra@vger.kernel.org This patch adds an API of_tegra_mipi_request() to allow creating mipi device for specific device node rather than a device so Tegra CSI driver can use it for calibrating MIPI pads for each stream independently. Signed-off-by: Sowjanya Komatineni --- drivers/gpu/host1x/mipi.c | 10 ++++++++-- include/linux/host1x.h | 2 ++ 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c index e00809d..f51fe69 100644 --- a/drivers/gpu/host1x/mipi.c +++ b/drivers/gpu/host1x/mipi.c @@ -206,9 +206,9 @@ static int tegra_mipi_power_down(struct tegra_mipi *mipi) return 0; } -struct tegra_mipi_device *tegra_mipi_request(struct device *device) +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, + struct device_node *np) { - struct device_node *np = device->of_node; struct tegra_mipi_device *dev; struct of_phandle_args args; int err; @@ -252,6 +252,12 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device) of_node_put(args.np); return ERR_PTR(err); } +EXPORT_SYMBOL(of_tegra_mipi_request); + +struct tegra_mipi_device *tegra_mipi_request(struct device *device) +{ + return of_tegra_mipi_request(device, device->of_node); +} EXPORT_SYMBOL(tegra_mipi_request); void tegra_mipi_free(struct tegra_mipi_device *device) diff --git a/include/linux/host1x.h b/include/linux/host1x.h index c230b4e..a61ca52 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -325,6 +325,8 @@ int host1x_client_resume(struct host1x_client *client); struct tegra_mipi_device; +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, + struct device_node *np); struct tegra_mipi_device *tegra_mipi_request(struct device *device); void tegra_mipi_free(struct tegra_mipi_device *device); int tegra_mipi_enable(struct tegra_mipi_device *device); -- 2.7.4