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[23.128.96.18]) by mx.google.com with ESMTP id i10si16191798pjm.31.2021.04.12.02.53.56; Mon, 12 Apr 2021 02:54:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244363AbhDLJwR (ORCPT + 99 others); Mon, 12 Apr 2021 05:52:17 -0400 Received: from relay10.mail.gandi.net ([217.70.178.230]:57461 "EHLO relay10.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243727AbhDLJmz (ORCPT ); Mon, 12 Apr 2021 05:42:55 -0400 Received: from uno.localdomain (93-34-118-233.ip49.fastwebnet.it [93.34.118.233]) (Authenticated sender: jacopo@jmondi.org) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 2E7F0240011; Mon, 12 Apr 2021 09:42:33 +0000 (UTC) Date: Mon, 12 Apr 2021 11:43:12 +0200 From: Jacopo Mondi To: Eugen Hristev Cc: devicetree@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 04/30] media: atmel: atmel-isc: specialize max width and max height Message-ID: <20210412094312.tsghnyhglxf3roiy@uno.localdomain> References: <20210405155105.162529-1-eugen.hristev@microchip.com> <20210405155105.162529-5-eugen.hristev@microchip.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20210405155105.162529-5-eugen.hristev@microchip.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Eugene, On Mon, Apr 05, 2021 at 06:50:39PM +0300, Eugen Hristev wrote: > Move the max width and max height constants to the product specific driver > and have them in the device struct. > > Signed-off-by: Eugen Hristev > --- > drivers/media/platform/atmel/atmel-isc-base.c | 28 +++++++++---------- > drivers/media/platform/atmel/atmel-isc.h | 9 ++++-- > .../media/platform/atmel/atmel-sama5d2-isc.c | 7 +++-- > 3 files changed, 25 insertions(+), 19 deletions(-) > > diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c > index 45fc8dbb7943..350076dd029a 100644 > --- a/drivers/media/platform/atmel/atmel-isc-base.c > +++ b/drivers/media/platform/atmel/atmel-isc-base.c > @@ -1204,8 +1204,8 @@ static void isc_try_fse(struct isc_device *isc, > * just use the maximum ISC can receive. > */ > if (ret) { > - pad_cfg->try_crop.width = ISC_MAX_SUPPORT_WIDTH; > - pad_cfg->try_crop.height = ISC_MAX_SUPPORT_HEIGHT; > + pad_cfg->try_crop.width = isc->max_width; > + pad_cfg->try_crop.height = isc->max_height; > } else { > pad_cfg->try_crop.width = fse.max_width; > pad_cfg->try_crop.height = fse.max_height; > @@ -1282,10 +1282,10 @@ static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f, > isc->try_config.sd_format = sd_fmt; > > /* Limit to Atmel ISC hardware capabilities */ > - if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH) > - pixfmt->width = ISC_MAX_SUPPORT_WIDTH; > - if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT) > - pixfmt->height = ISC_MAX_SUPPORT_HEIGHT; > + if (pixfmt->width > isc->max_width) > + pixfmt->width = isc->max_width; > + if (pixfmt->height > isc->max_height) > + pixfmt->height = isc->max_height; > > /* > * The mbus format is the one the subdev outputs. > @@ -1327,10 +1327,10 @@ static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f, > v4l2_fill_pix_format(pixfmt, &format.format); > > /* Limit to Atmel ISC hardware capabilities */ > - if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH) > - pixfmt->width = ISC_MAX_SUPPORT_WIDTH; > - if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT) > - pixfmt->height = ISC_MAX_SUPPORT_HEIGHT; > + if (pixfmt->width > isc->max_width) > + pixfmt->width = isc->max_width; > + if (pixfmt->height > isc->max_height) > + pixfmt->height = isc->max_height; What happens if the sensor sends a frame larger that the ISC max supported sizes ? > > pixfmt->field = V4L2_FIELD_NONE; > pixfmt->bytesperline = (pixfmt->width * isc->try_config.bpp) >> 3; > @@ -1368,10 +1368,10 @@ static int isc_set_fmt(struct isc_device *isc, struct v4l2_format *f) > return ret; > > /* Limit to Atmel ISC hardware capabilities */ > - if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH) > - pixfmt->width = ISC_MAX_SUPPORT_WIDTH; > - if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT) > - pixfmt->height = ISC_MAX_SUPPORT_HEIGHT; > + if (f->fmt.pix.width > isc->max_width) > + f->fmt.pix.width = isc->max_width; > + if (f->fmt.pix.height > isc->max_height) > + f->fmt.pix.height = isc->max_height; > > isc->fmt = *f; > > diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h > index 8d81d9967ad2..6becc6c3aaf0 100644 > --- a/drivers/media/platform/atmel/atmel-isc.h > +++ b/drivers/media/platform/atmel/atmel-isc.h > @@ -10,9 +10,6 @@ > */ > #ifndef _ATMEL_ISC_H_ > > -#define ISC_MAX_SUPPORT_WIDTH 2592 > -#define ISC_MAX_SUPPORT_HEIGHT 1944 > - > #define ISC_CLK_MAX_DIV 255 > > enum isc_clk_id { > @@ -191,6 +188,9 @@ struct isc_ctrls { > * @gamma_table: pointer to the table with gamma values, has > * gamma_max sets of GAMMA_ENTRIES entries each > * @gamma_max: maximum number of sets of inside the gamma_table > + * > + * @max_width: maximum frame width, dependent on the internal RAM > + * @max_height: maximum frame height, dependent on the internal RAM > */ > struct isc_device { > struct regmap *regmap; > @@ -254,6 +254,9 @@ struct isc_device { > /* pointer to the defined gamma table */ > const u32 (*gamma_table)[GAMMA_ENTRIES]; > u32 gamma_max; > + > + u32 max_width; > + u32 max_height; > }; > > extern struct isc_format formats_list[]; > diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c > index f45d8b96bfb8..f8d1c8ba99b3 100644 > --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c > +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c > @@ -49,8 +49,8 @@ > #include "atmel-isc-regs.h" > #include "atmel-isc.h" > > -#define ISC_MAX_SUPPORT_WIDTH 2592 > -#define ISC_MAX_SUPPORT_HEIGHT 1944 > +#define ISC_SAMA5D2_MAX_SUPPORT_WIDTH 2592 > +#define ISC_SAMA5D2_MAX_SUPPORT_HEIGHT 1944 > > #define ISC_CLK_MAX_DIV 255 > > @@ -195,6 +195,9 @@ static int atmel_isc_probe(struct platform_device *pdev) > isc->gamma_table = isc_sama5d2_gamma_table; > isc->gamma_max = 2; > > + isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH; > + isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT; > + > ret = isc_pipeline_init(isc); > if (ret) > return ret; > -- > 2.25.1 >