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charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org VGhhbmsgeW91IGZvciB5b3VyIGNvbnRyaWJ1dGlvbiEgU2FzaGlrbyBBSSByZXZpZXcgZm91bmQg MiBwb3RlbnRpYWwgaXNzdWUocykgdG8gY29uc2lkZXI6Ci0gW01lZGl1bV0gYGFoYi13Y2xrYCBp cyBhc3NpZ25lZCB0aGUgd3JvbmcgcGFyZW50IG11eCwgYnJlYWtpbmcgdGhlIGNsb2NrIHRvcG9s b2d5LgotIFtMb3ddIFRoZSBkcml2ZXIgZmFpbHMgdG8gY29tcGlsZSBiZWNhdXNlIGl0IHVzZXMg YGNvbnN0YCB2YXJpYWJsZXMgdG8gaW5pdGlhbGl6ZSBzdGF0aWMgYXJyYXkgZWxlbWVudHMsIHdo aWNoIHZpb2xhdGVzIHRoZSBDIHN0YW5kYXJkIGZvciBjb25zdGFudCBleHByZXNzaW9ucy4KLS0K Ci0tLSBQYXRjaCBbOF06IFtQQVRDSCB2MTAgMDgvMTJdIGNsazogenRlOiBJbnRyb2R1Y2UgYSBk cml2ZXIgZm9yIHp4Mjk3NTIwdjMgdG9wIGNsb2NrcyAtLS0KY29tbWl0IGUwZjlhMWFhZmVkODY0 MDEwMmQ3YWNhMGJiYjBkODkwNzllODljNWYKQXV0aG9yOiBTdGVmYW4gRMO2c2luZ2VyIDxzdGVm YW5kb2VzaW5nZXJAZ21haWwuY29tPgoKY2xrOiB6dGU6IEludHJvZHVjZSBhIGRyaXZlciBmb3Ig engyOTc1MjB2MyB0b3AgY2xvY2tzCgpUaGlzIGNvbW1pdCBpbnRyb2R1Y2VzIGEgbmV3IGNsb2Nr IGRyaXZlciBmb3IgdGhlIFpURSB6eDI5NzUyMHYzIFNvQy4KSXQgc3VwcG9ydHMgYmFzaWMgY2xv Y2tzLCBpbmNsdWRpbmcgUExMcywgdGhlIEFIQiBidXMsIHRpbWVycywgYW5kIHRoZQpVU0IgY29u dHJvbGxlci4KCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvY2xrL3p0ZS9jbGstengyOTc1MjB2My5j IGIvZHJpdmVycy9jbGsvenRlL2Nsay16eDI5NzUyMHYzLmMKPiBuZXcgZmlsZSBtb2RlIDEwMDY0 NAo+IGluZGV4IDAwMDAwMDAwMDAwMDAuLjUwNDA3NTU5MGU2ZDIKPiAtLS0gL2Rldi9udWxsCj4g KysrIGIvZHJpdmVycy9jbGsvenRlL2Nsay16eDI5NzUyMHYzLmMKWyAuLi4gXQo+ICtzdGF0aWMg Y29uc3Qgc3RydWN0IHp4X2Nsb2NrIHp4Mjk3NTIwdjNfdG9wX2Nsb2Nrc1tdID0gewpbIC4uLiBd Cj4gKwkvKiBvc2MyNm0gZGl2aXNpb24gZm9yIGNsa19vdXRYICovCj4gKwlbWlhfQ0xLX09TQzI2 TV9EMl0gICAgICAgICA9IEZJWEVEX0RJVigib3NjMjZtLWQyIiwgY2xrX21haW5bMF0sIDIpLAoK W1NldmVyaXR5OiBMb3ddCldpbGwgdGhpcyBjYXVzZSBhIGNvbXBpbGVyIGVycm9yPwoKSW4gc3Rh bmRhcmQgQywgdmFyaWFibGVzIHF1YWxpZmllZCB3aXRoIGNvbnN0IGFyZSBub3QgY29uc2lkZXJl ZCBjb25zdGFudApleHByZXNzaW9ucy4gVXNpbmcgY2xrX21haW4gYXJyYXkgZWxlbWVudHMgaGVy ZSB0byBpbml0aWFsaXplIGVsZW1lbnRzIG9mIGEKc3RhdGljIGFycmF5IHdpbGwgbGlrZWx5IHRy aWdnZXIgYW4gaW5pdGlhbGl6ZXIgZWxlbWVudCBpcyBub3QgY29uc3RhbnQgZXJyb3IuCgpbIC4u LiBdCj4gKwlbWlhfQ0xLX1dEVF9UMThfRElWXSAgICAgICA9IERJVigid2R0LXQxOC1kaXYiLCBQ QVJFTlRfSUQoWlhfQ0xLX1dEVF9UMThfTVVYKSwKPiArCQkJCQkgMHg0OCwgOCwgNCksCj4gKwlb WlhfQ0xLX1VTSU0xX0RJVl0gICAgICAgICA9IERJVigidXNpbTEtZGl2IiwgY2xrX3Vua25vd24s Cj4gKwkJCQkJIDB4NDgsIDEyLCAxKSwKCltTZXZlcml0eTogTG93XQpJcyB0aGlzIGFub3RoZXIg cGxhY2Ugd2hlcmUgYSBjb25zdCB2YXJpYWJsZSAoY2xrX3Vua25vd24pIHdpbGwgdHJpZ2dlciBh CmNvbXBpbGVyIGVycm9yIHdoZW4gdXNlZCBhcyBhIHN0YXRpYyBhcnJheSBpbml0aWFsaXplcj8K ClsgLi4uIF0KPiArCS8qCj4gKwkgKiBBSEIgY2xvY2sgZ2F0ZXM6IERpc2FibGluZyB0aGVzZSBj dXRzIG9mZiB0aGUgQTUzIGZyb20gcmVnaXN0ZXIgYWNjZXNzIGludG8gMHgxMzAwMDAvCj4gKwkg KiAweDE0MDAwMCwgaW5jbHVkaW5nIHRoZSB0b3Bjcm0gcmVnaW9uLCBzbyBpdCBjYW4ndCBiZSBy ZS1lbmFibGVkLiBNYXJrIHRoZW0gY3JpdGljYWwgZm9yCj4gKwkgKiB0aGF0IHJlYXNvbi4KPiAr CSAqCj4gKwkgKiBHYXRpbmcgdGhpcyBvZmYgZG9lcyBub3Qgc3RvcCB0aGUgTTAgcnByb2MsIG5v ciBkb2VzIGl0IHN0b3AgTTAgZnJvbSBhY2Nlc3NpbmcgdG9wY3JtLiBJdAo+ICsJICogZG9lcyBo b3dldmVyIGdhdGUgb2ZmIE0wIGZyb20gdGhlIEFYSSBpbnRlcmNvbm5lY3QsIHNvIGl0IGNhbid0 IHJlYWQgUkFNLCBNYXRyaXgsIGV0Yy4gU28KPiArCSAqIHRoZXNlIGJpdHMgaGVyZSBtZXJlbHkg Z2F0ZSB0aGUgYnVzLCBub3QgdGhlIGFjdHVhbCBkZXZpY2VzLgo+ICsJICovCj4gKwlbWlhfQ0xL X0FIQl9QQ0xLXSAgICAgICAgICA9IEdBVEUoImFoYi1wY2xrIiwgUEFSRU5UX0lEKFpYX0NMS19B SEJfTVVYKSwgMHg1NCwgMTIsCj4gKwkJCQkJICBDTEtfSVNfQ1JJVElDQUwpLAo+ICsJW1pYX0NM S19BSEJfV0NMS10gICAgICAgICAgPSBHQVRFKCJhaGItd2NsayIsIFBBUkVOVF9JRChaWF9DTEtf TTBfTVVYKSwgMHg1NCwgMTMsCj4gKwkJCQkJICBDTEtfSVNfQ1JJVElDQUwpLAoKW1NldmVyaXR5 OiBNZWRpdW1dCkRvZXMgYWhiLXdjbGsgaGF2ZSB0aGUgd3JvbmcgcGFyZW50IG11eCBhc3NpZ25l ZCBoZXJlPwoKSXQgaXMgY3VycmVudGx5IGFzc2lnbmVkIFpYX0NMS19NMF9NVVggaW5zdGVhZCBv ZiBaWF9DTEtfQUhCX01VWC4gVGhlIGNvbW1lbnRzCnN0YXRlIHRoYXQgY2hhbmdpbmcgdGhlIEFI QiBtdXggYWZmZWN0cyBVU0IgbmV0d29yayBzcGVlZHMsIHdoaWNoIGltcGxpZXMKdGhhdCBaWF9D TEtfQUhCX01VWCBpcyB0aGUgYWN0dWFsIGhhcmR3YXJlIHBhcmVudC4KClsgLi4uIF0KPiArCS8q Cj4gKwkgKiBIb3cgZG9lcyB0aGlzIFJUQyB3b3JrPyBJIGRvbid0IGtub3csIHRoZSBaVEUga2Vy bmVsIGRvZXMgbm90IHRhbGsgdG8gaXQuIFRoZSBhY3R1YWwgUlRDCj4gKwkgKiBpcyBvbiB0aGUg STJDLWNvbm5lY3RlZCBQTUlDLgo+ICsJICovCj4gKwlbWlhfQ0xLX1JUQ19XQ0xLXSAgICAgICAg ID0gR0FURSgicnRjLXdjbGsiLCBjbGtfdW5rbm93biwgMHg1NCwgMSwgMCksCgpbU2V2ZXJpdHk6 IExvd10KV2lsbCB0aGlzIGZhY2UgdGhlIHNhbWUgc3RhdGljIGFycmF5IGluaXRpYWxpemVyIGVy cm9yIGFzIHRoZSBvdGhlciB1c2FnZXMKb2YgY2xrX3Vua25vd24/CgotLSAKU2FzaGlrbyBBSSBy ZXZpZXcgwrcgaHR0cHM6Ly9zYXNoaWtvLmRldi8jL3BhdGNoc2V0LzIwMjYwODEwLXp4MjljbGst djEwLTAtNjM4NDY0OTA3MTJjQGdtYWlsLmNvbT9wYXJ0PTgKCi0tIApsaW51eC1waHkgbWFpbGlu ZyBsaXN0CmxpbnV4LXBoeUBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHBzOi8vbGlzdHMuaW5mcmFk ZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXBoeQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC8C63ACA41; 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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XL/p6vkx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0BFA01F000E9; Mon, 10 Aug 2026 07:15:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786346101; bh=OvZj6l0Ng7cZ0DmKBloJuS9guPd5/AykBMn1umdNDG0=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=XL/p6vkxUYnBWw4/iQvauZBceEPLr3GAIqDJor/ZL84TCqngN1P3L2SBwrIX+x98F M7FBPZQcY2MPOSEHbA4xAHwlYSCyAh1GY6w2GDIZvkza8a6qh8uNKSrdMpZug0c4/E YHuDxycBIL0CXyHt2Vror5K0SaN0cKjfdFhDi7nKn6RMYkU12rjyyfLaKqC36ohbAM L1MkmkjaNGmcYuOzK3sQ98037msoRHTNRUS/f9Ry+IzDcwYfckgBroiK/KRjOj67pm 4zTqcUzhQgYB79faiPxpQYmsZbbgXog2cxj0E/MO5wbbAMwEypjtGl+Xh+uR+pSAtU qaotYZpk4ieIQ== From: sashiko-bot@kernel.org Subject: Re: [PATCH v10 08/12] clk: zte: Introduce a driver for zx297520v3 top clocks Reply-To: sashiko-reviews@lists.linux.dev To: =?utf-8?b?U3RlZmFuIETDtnNpbmdlcg==?= Cc: lee@kernel.org, vkoul@kernel.org, linux-phy@lists.infradead.org, mfd@lists.linux.dev, neil.armstrong@linaro.org, devicetree@vger.kernel.org, olteanv@gmail.com, robh@kernel.org, conor+dt@kernel.org In-Reply-To: <20260810-zx29clk-v10-8-63846490712c@gmail.com> References: <20260810-zx29clk-v10-0-63846490712c@gmail.com> <20260810-zx29clk-v10-8-63846490712c@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 10 Aug 2026 07:15:00 +0000 Message-Id: <20260810071501.0BFA01F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Thank you for your contribution! Sashiko AI review found 2 potential issue(= s) to consider: - [Medium] `ahb-wclk` is assigned the wrong parent mux, breaking the clock = topology. - [Low] The driver fails to compile because it uses `const` variables to in= itialize static array elements, which violates the C standard for constant = expressions. -- --- Patch [8]: [PATCH v10 08/12] clk: zte: Introduce a driver for zx297520v= 3 top clocks --- commit e0f9a1aafed8640102d7aca0bbb0d89079e89c5f Author: Stefan D=C3=B6singer clk: zte: Introduce a driver for zx297520v3 top clocks This commit introduces a new clock driver for the ZTE zx297520v3 SoC. It supports basic clocks, including PLLs, the AHB bus, timers, and the USB controller. > diff --git a/drivers/clk/zte/clk-zx297520v3.c b/drivers/clk/zte/clk-zx297= 520v3.c > new file mode 100644 > index 0000000000000..504075590e6d2 > --- /dev/null > +++ b/drivers/clk/zte/clk-zx297520v3.c [ ... ] > +static const struct zx_clock zx297520v3_top_clocks[] =3D { [ ... ] > + /* osc26m division for clk_outX */ > + [ZX_CLK_OSC26M_D2] =3D FIXED_DIV("osc26m-d2", clk_main[0], 2), [Severity: Low] Will this cause a compiler error? In standard C, variables qualified with const are not considered constant expressions. Using clk_main array elements here to initialize elements of a static array will likely trigger an initializer element is not constant err= or. [ ... ] > + [ZX_CLK_WDT_T18_DIV] =3D DIV("wdt-t18-div", PARENT_ID(ZX_CLK_WDT_= T18_MUX), > + 0x48, 8, 4), > + [ZX_CLK_USIM1_DIV] =3D DIV("usim1-div", clk_unknown, > + 0x48, 12, 1), [Severity: Low] Is this another place where a const variable (clk_unknown) will trigger a compiler error when used as a static array initializer? [ ... ] > + /* > + * AHB clock gates: Disabling these cuts off the A53 from register acce= ss into 0x130000/ > + * 0x140000, including the topcrm region, so it can't be re-enabled. Ma= rk them critical for > + * that reason. > + * > + * Gating this off does not stop the M0 rproc, nor does it stop M0 from= accessing topcrm. It > + * does however gate off M0 from the AXI interconnect, so it can't read= RAM, Matrix, etc. So > + * these bits here merely gate the bus, not the actual devices. > + */ > + [ZX_CLK_AHB_PCLK] =3D GATE("ahb-pclk", PARENT_ID(ZX_CLK_AHB_MU= X), 0x54, 12, > + CLK_IS_CRITICAL), > + [ZX_CLK_AHB_WCLK] =3D GATE("ahb-wclk", PARENT_ID(ZX_CLK_M0_MUX= ), 0x54, 13, > + CLK_IS_CRITICAL), [Severity: Medium] Does ahb-wclk have the wrong parent mux assigned here? It is currently assigned ZX_CLK_M0_MUX instead of ZX_CLK_AHB_MUX. The comme= nts state that changing the AHB mux affects USB network speeds, which implies that ZX_CLK_AHB_MUX is the actual hardware parent. [ ... ] > + /* > + * How does this RTC work? I don't know, the ZTE kernel does not talk t= o it. The actual RTC > + * is on the I2C-connected PMIC. > + */ > + [ZX_CLK_RTC_WCLK] =3D GATE("rtc-wclk", clk_unknown, 0x54, 1, 0), [Severity: Low] Will this face the same static array initializer error as the other usages of clk_unknown? --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260810-zx29clk-v1= 0-0-63846490712c@gmail.com?part=3D8