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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id k67sm3069817oia.7.2021.02.09.10.15.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 10:15:12 -0800 (PST) Received: (nullmailer pid 4073574 invoked by uid 1000); Tue, 09 Feb 2021 18:15:10 -0000 Date: Tue, 9 Feb 2021 12:15:10 -0600 From: Rob Herring To: Liu Ying Subject: Re: [PATCH v3 09/14] drm/bridge: imx: Add i.MX8qxp pixel link to DPI support Message-ID: <20210209181510.GA4045547@robh.at.kernel.org> References: <1611737488-2791-1-git-send-email-victor.liu@nxp.com> <1611737488-2791-10-git-send-email-victor.liu@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1611737488-2791-10-git-send-email-victor.liu@nxp.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210209_131514_382846_CA036F23 X-CRM114-Status: GOOD ( 19.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, jernej.skrabec@siol.net, Laurent.pinchart@ideasonboard.com, kernel@pengutronix.de, narmstrong@baylibre.com, airlied@linux.ie, festevam@gmail.com, s.hauer@pengutronix.de, jonas@kwiboo.se, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kishon@ti.com, a.hajda@samsung.com, vkoul@kernel.org, linux-imx@nxp.com, daniel@ffwll.ch, mchehab@kernel.org, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; 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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id k67sm3069817oia.7.2021.02.09.10.15.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 10:15:12 -0800 (PST) Received: (nullmailer pid 4073574 invoked by uid 1000); Tue, 09 Feb 2021 18:15:10 -0000 Date: Tue, 9 Feb 2021 12:15:10 -0600 From: Rob Herring To: Liu Ying Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, airlied@linux.ie, daniel@ffwll.ch, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, mchehab@kernel.org, a.hajda@samsung.com, narmstrong@baylibre.com, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@siol.net, kishon@ti.com, vkoul@kernel.org Subject: Re: [PATCH v3 09/14] drm/bridge: imx: Add i.MX8qxp pixel link to DPI support Message-ID: <20210209181510.GA4045547@robh.at.kernel.org> References: <1611737488-2791-1-git-send-email-victor.liu@nxp.com> <1611737488-2791-10-git-send-email-victor.liu@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1611737488-2791-10-git-send-email-victor.liu@nxp.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, Jan 27, 2021 at 04:51:23PM +0800, Liu Ying wrote: > This patch adds a drm bridge driver for i.MX8qxp pixel link to display > pixel interface(PXL2DPI). The PXL2DPI interfaces the pixel link 36-bit > data output and the DSI controller’s MIPI-DPI 24-bit data input, and > inputs of LVDS Display Bridge(LDB) module used in LVDS mode, to remap > the pixel color codings between those modules. The PXL2DPI is purely > combinatorial. > > Signed-off-by: Liu Ying > --- > v2->v3: > * Call syscon_node_to_regmap() to get regmap instead of > syscon_regmap_lookup_by_phandle(). > > v1->v2: > * Drop unnecessary port availability check. > > drivers/gpu/drm/bridge/imx/Kconfig | 8 + > drivers/gpu/drm/bridge/imx/Makefile | 1 + > drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c | 488 +++++++++++++++++++++++++++ > 3 files changed, 497 insertions(+) > create mode 100644 drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c > + p2d->regmap = syscon_node_to_regmap(np->parent); > + if (IS_ERR(p2d->regmap)) { > + ret = PTR_ERR(p2d->regmap); > + if (ret != -EPROBE_DEFER) > + DRM_DEV_ERROR(dev, "failed to get regmap: %d\n", ret); > + return ret; > + } > + > + p2d->id = of_alias_get_id(np, "pxl2dpi"); Don't add random aliases. I'd rather see a property in this node as long as it is specific to what this is used for (and not a generic index). 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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id k67sm3069817oia.7.2021.02.09.10.15.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 10:15:12 -0800 (PST) Received: (nullmailer pid 4073574 invoked by uid 1000); Tue, 09 Feb 2021 18:15:10 -0000 Date: Tue, 9 Feb 2021 12:15:10 -0600 From: Rob Herring To: Liu Ying Subject: Re: [PATCH v3 09/14] drm/bridge: imx: Add i.MX8qxp pixel link to DPI support Message-ID: <20210209181510.GA4045547@robh.at.kernel.org> References: <1611737488-2791-1-git-send-email-victor.liu@nxp.com> <1611737488-2791-10-git-send-email-victor.liu@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1611737488-2791-10-git-send-email-victor.liu@nxp.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, jernej.skrabec@siol.net, Laurent.pinchart@ideasonboard.com, kernel@pengutronix.de, narmstrong@baylibre.com, airlied@linux.ie, s.hauer@pengutronix.de, jonas@kwiboo.se, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kishon@ti.com, a.hajda@samsung.com, vkoul@kernel.org, linux-imx@nxp.com, mchehab@kernel.org, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" T24gV2VkLCBKYW4gMjcsIDIwMjEgYXQgMDQ6NTE6MjNQTSArMDgwMCwgTGl1IFlpbmcgd3JvdGU6 Cj4gVGhpcyBwYXRjaCBhZGRzIGEgZHJtIGJyaWRnZSBkcml2ZXIgZm9yIGkuTVg4cXhwIHBpeGVs IGxpbmsgdG8gZGlzcGxheQo+IHBpeGVsIGludGVyZmFjZShQWEwyRFBJKS4gIFRoZSBQWEwyRFBJ IGludGVyZmFjZXMgdGhlIHBpeGVsIGxpbmsgMzYtYml0Cj4gZGF0YSBvdXRwdXQgYW5kIHRoZSBE U0kgY29udHJvbGxlcuKAmXMgTUlQSS1EUEkgMjQtYml0IGRhdGEgaW5wdXQsIGFuZAo+IGlucHV0 cyBvZiBMVkRTIERpc3BsYXkgQnJpZGdlKExEQikgbW9kdWxlIHVzZWQgaW4gTFZEUyBtb2RlLCB0 byByZW1hcAo+IHRoZSBwaXhlbCBjb2xvciBjb2RpbmdzIGJldHdlZW4gdGhvc2UgbW9kdWxlcy4g VGhlIFBYTDJEUEkgaXMgcHVyZWx5Cj4gY29tYmluYXRvcmlhbC4KPiAKPiBTaWduZWQtb2ZmLWJ5 OiBMaXUgWWluZyA8dmljdG9yLmxpdUBueHAuY29tPgo+IC0tLQo+IHYyLT52MzoKPiAqIENhbGwg c3lzY29uX25vZGVfdG9fcmVnbWFwKCkgdG8gZ2V0IHJlZ21hcCBpbnN0ZWFkIG9mCj4gICBzeXNj b25fcmVnbWFwX2xvb2t1cF9ieV9waGFuZGxlKCkuCj4gCj4gdjEtPnYyOgo+ICogRHJvcCB1bm5l Y2Vzc2FyeSBwb3J0IGF2YWlsYWJpbGl0eSBjaGVjay4KPiAKPiAgZHJpdmVycy9ncHUvZHJtL2Jy aWRnZS9pbXgvS2NvbmZpZyAgICAgICAgICAgfCAgIDggKwo+ICBkcml2ZXJzL2dwdS9kcm0vYnJp ZGdlL2lteC9NYWtlZmlsZSAgICAgICAgICB8ICAgMSArCj4gIGRyaXZlcnMvZ3B1L2RybS9icmlk Z2UvaW14L2lteDhxeHAtcHhsMmRwaS5jIHwgNDg4ICsrKysrKysrKysrKysrKysrKysrKysrKysr Kwo+ICAzIGZpbGVzIGNoYW5nZWQsIDQ5NyBpbnNlcnRpb25zKCspCj4gIGNyZWF0ZSBtb2RlIDEw MDY0NCBkcml2ZXJzL2dwdS9kcm0vYnJpZGdlL2lteC9pbXg4cXhwLXB4bDJkcGkuYwoKPiArCXAy ZC0+cmVnbWFwID0gc3lzY29uX25vZGVfdG9fcmVnbWFwKG5wLT5wYXJlbnQpOwo+ICsJaWYgKElT X0VSUihwMmQtPnJlZ21hcCkpIHsKPiArCQlyZXQgPSBQVFJfRVJSKHAyZC0+cmVnbWFwKTsKPiAr CQlpZiAocmV0ICE9IC1FUFJPQkVfREVGRVIpCj4gKwkJCURSTV9ERVZfRVJST1IoZGV2LCAiZmFp bGVkIHRvIGdldCByZWdtYXA6ICVkXG4iLCByZXQpOwo+ICsJCXJldHVybiByZXQ7Cj4gKwl9Cj4g Kwo+ICsJcDJkLT5pZCA9IG9mX2FsaWFzX2dldF9pZChucCwgInB4bDJkcGkiKTsKCkRvbid0IGFk ZCByYW5kb20gYWxpYXNlcy4gSSdkIHJhdGhlciBzZWUgYSBwcm9wZXJ0eSBpbiB0aGlzIG5vZGUg YXMgbG9uZyAKYXMgaXQgaXMgc3BlY2lmaWMgdG8gd2hhdCB0aGlzIGlzIHVzZWQgZm9yIChhbmQg bm90IGEgZ2VuZXJpYyBpbmRleCkuCgpSb2IKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMu ZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlz dGluZm8vZHJpLWRldmVsCg==