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bh=UWdULM/cMKhvgQZZICo8f8j2JPsZ03rAx8n6aRyuTRA=; b=cRrsE4QE68olJg41DT12TrP6oz9WiyLfh3ctxU8hb6u72TCHbjPe9kNDHQEtpjCu5h4CrJ G8sKs9jUK90tY8wNxFnRYBsd8ksnBchzceLuUYuW4BZ6KDans2C1W9qgmtgfk4V4FeGZaf WSKB+PIQbC3x8SfejzP9l6fLvB9cBoLFe3ccIfsg6N+I9VWqkUB/OtaDlXNJpr/LcmZkma ong5/6JgPHopQGK0/5/J/auUoD8jDqYB64gEgz9MIZ3aLTZ5zRMn8yf3seQSJrWaimAagW srxG6/Q4OkM0Rb0EE0G8idbPWvLQvgbsFCV4KB0Eo0gRqB0Rkiw+V8y5h10KiA== References: <20230806-pll-mipi_set_rate_parent-v5-0-db4f5ca33fc3@oltmanns.dev> <20230806-pll-mipi_set_rate_parent-v5-2-db4f5ca33fc3@oltmanns.dev> <3752134.kQq0lBPeGt@jernej-laptop> From: Frank Oltmanns To: Jernej =?utf-8?Q?=C5=A0krabec?= Cc: Maxime Ripard , Michael Turquette , Stephen Boyd , Chen-Yu Tsai , Samuel Holland , Andre Przywara , Roman Beranek , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 02/11] clk: sunxi-ng: nkm: consider alternative parent rates when determining rate In-reply-to: <3752134.kQq0lBPeGt@jernej-laptop> Date: Sun, 06 Aug 2023 15:57:00 +0200 Message-ID: <87h6pc9sur.fsf@oltmanns.dev> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230806_065707_996757_2EEAE853 X-CRM114-Status: GOOD ( 17.67 ) 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: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDIwMjMtMDgtMDYgYXQgMTU6MzI6MjkgKzAyMDAsIEplcm5laiDFoGtyYWJlYyA8amVybmVq LnNrcmFiZWNAZ21haWwuY29tPiB3cm90ZToKPiBEbmUgbmVkZWxqYSwgMDYuIGF2Z3VzdCAyMDIz IG9iIDE1OjA2OjQ3IENFU1QgamUgRnJhbmsgT2x0bWFubnMgbmFwaXNhbChhKToKPj4gSW4gY2Fz ZSB0aGUgQ0xLX1NFVF9SQVRFX1BBUkVOVCBmbGFnIGlzIHNldCwgY29uc2lkZXIgdXNpbmcgYSBk aWZmZXJlbnQKPj4gcGFyZW50IHJhdGUgd2hlbiBkZXRlcm1pbmluZyBhIG5ldyByYXRlLgo+Pgo+ PiBUbyBmaW5kIHRoZSBiZXN0IG1hdGNoIGZvciB0aGUgcmVxdWVzdGVkIHJhdGUsIHBlcmZvcm0g dGhlIGZvbGxvd2luZwo+PiBzdGVwcyBmb3IgZWFjaCBOS00gY29tYmluYXRpb246Cj4+ICAtIGNh bGN1bGF0ZSB0aGUgb3B0aW1hbCBwYXJlbnQgcmF0ZSwKPj4gIC0gZmluZCB0aGUgYmVzdCBwYXJl bnQgcmF0ZSB0aGF0IHRoZSBwYXJlbnQgY2xvY2sgYWN0dWFsbHkgc3VwcG9ydHMKPj4gIC0gdXNl IHRoYXQgcGFyZW50IHJhdGUgdG8gY2FsY3VsYXRlIHRoZSBlZmZlY3RpdmUgcmF0ZS4KPj4KPj4g SW4gY2FzZSB0aGUgY2xrIGRvZXMgbm90IHN1cHBvcnQgc2V0dGluZyB0aGUgcGFyZW50IHJhdGUs IHVzZSB0aGUgc2FtZQo+PiBhbGdvcml0aG0gYXMgYmVmb3JlLgo+Pgo+PiBBY2tlZC1ieTogTWF4 aW1lIFJpcGFyZCA8bXJpcGFyZEBrZXJuZWwub3JnPgo+PiBTaWduZWQtb2ZmLWJ5OiBGcmFuayBP bHRtYW5ucyA8ZnJhbmtAb2x0bWFubnMuZGV2Pgo+PiAtLS0KPj4gIGRyaXZlcnMvY2xrL3N1bnhp LW5nL2NjdV9ua20uYyB8IDQ1Cj4+ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrLSAxIGZpbGUgY2hhbmdlZCwgNDQKPj4gaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigt KQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9jbGsvc3VueGktbmcvY2N1X25rbS5jIGIvZHJp dmVycy9jbGsvc3VueGktbmcvY2N1X25rbS5jCj4+IGluZGV4IGYyNjcxNDJlNThiMy4uZWExYjc3 ZTliNTdmIDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2Nsay9zdW54aS1uZy9jY3VfbmttLmMKPj4g KysrIGIvZHJpdmVycy9jbGsvc3VueGktbmcvY2N1X25rbS5jCj4+IEBAIC02LDYgKzYsNyBAQAo+ Pgo+PiAgI2luY2x1ZGUgPGxpbnV4L2Nsay1wcm92aWRlci5oPgo+PiAgI2luY2x1ZGUgPGxpbnV4 L2lvLmg+Cj4+ICsjaW5jbHVkZSA8bGludXgvbWF0aC5oPgo+Cj4gV2h5IGRvIHlvdSBuZWVkIGFi b3ZlIGluY2x1ZGU/CgpJdCdzIG5vdCBuZWVkZWQuIEl0J3MgYSBsZWZ0b3ZlciBmcm9tIGFuIGVh cmxpZXIgdmVyc2lvbi4gSSdsbCByZW1vdmUgaXQKaW4gdjYuCgpUaGFuayB5b3UgZm9yIHlvdXIg cmV2aWV3LAogIEZyYW5rCgo+Cj4gQmVzdCByZWdhcmRzLAo+IEplcm5lago+Cj4+Cj4+ICAjaW5j bHVkZSAiY2N1X2dhdGUuaCIKPj4gICNpbmNsdWRlICJjY3VfbmttLmgiCj4+IEBAIC0xNiw2ICsx Nyw0NSBAQCBzdHJ1Y3QgX2NjdV9ua20gewo+PiAgCXVuc2lnbmVkIGxvbmcJbSwgbWluX20sIG1h eF9tOwo+PiAgfTsKPj4KPj4gK3N0YXRpYyB1bnNpZ25lZCBsb25nIGNjdV9ua21fZmluZF9iZXN0 X3dpdGhfcGFyZW50X2FkaihzdHJ1Y3QgY2xrX2h3Cj4+ICpwYXJlbnRfaHcsICsKPiAgICAgICAg dW5zaWduZWQgbG9uZyAqcGFyZW50LCB1bnNpZ25lZCBsb25nIHJhdGUsCj4+ICsKPiBzdHJ1Y3Qg X2NjdV9ua20gKm5rbSkKPj4gK3sKPj4gKwl1bnNpZ25lZCBsb25nIGJlc3RfcmF0ZSA9IDAsIGJl c3RfcGFyZW50X3JhdGUgPSAqcGFyZW50LCB0bXBfcGFyZW50Cj4gPQo+PiAqcGFyZW50OyArCXVu c2lnbmVkIGxvbmcgYmVzdF9uID0gMCwgYmVzdF9rID0gMCwgYmVzdF9tID0gMDsKPj4gKwl1bnNp Z25lZCBsb25nIF9uLCBfaywgX207Cj4+ICsKPj4gKwlmb3IgKF9rID0gbmttLT5taW5fazsgX2sg PD0gbmttLT5tYXhfazsgX2srKykgewo+PiArCQlmb3IgKF9uID0gbmttLT5taW5fbjsgX24gPD0g bmttLT5tYXhfbjsgX24rKykgewo+PiArCQkJZm9yIChfbSA9IG5rbS0+bWluX207IF9tIDw9IG5r bS0+bWF4X207IF9tKyspCj4gewo+PiArCQkJCXVuc2lnbmVkIGxvbmcgdG1wX3JhdGU7Cj4+ICsK Pj4gKwkJCQl0bXBfcGFyZW50ID0KPiBjbGtfaHdfcm91bmRfcmF0ZShwYXJlbnRfaHcsIHJhdGUg KiBfbSAvIChfbiAqIF9rKSk7Cj4+ICsKPj4gKwkJCQl0bXBfcmF0ZSA9IHRtcF9wYXJlbnQgKiBf biAqIF9rIC8KPiBfbTsKPj4gKwkJCQlpZiAodG1wX3JhdGUgPiByYXRlKQo+PiArCQkJCQljb250 aW51ZTsKPj4gKwo+PiArCQkJCWlmICgocmF0ZSAtIHRtcF9yYXRlKSA8IChyYXRlIC0KPiBiZXN0 X3JhdGUpKSB7Cj4+ICsJCQkJCWJlc3RfcmF0ZSA9IHRtcF9yYXRlOwo+PiArCQkJCQliZXN0X3Bh cmVudF9yYXRlID0KPiB0bXBfcGFyZW50Owo+PiArCQkJCQliZXN0X24gPSBfbjsKPj4gKwkJCQkJ YmVzdF9rID0gX2s7Cj4+ICsJCQkJCWJlc3RfbSA9IF9tOwo+PiArCQkJCX0KPj4gKwkJCX0KPj4g KwkJfQo+PiArCX0KPj4gKwo+PiArCW5rbS0+biA9IGJlc3RfbjsKPj4gKwlua20tPmsgPSBiZXN0 X2s7Cj4+ICsJbmttLT5tID0gYmVzdF9tOwo+PiArCj4+ICsJKnBhcmVudCA9IGJlc3RfcGFyZW50 X3JhdGU7Cj4+ICsKPj4gKwlyZXR1cm4gYmVzdF9yYXRlOwo+PiArfQo+PiArCj4+ICBzdGF0aWMg dW5zaWduZWQgbG9uZyBjY3VfbmttX2ZpbmRfYmVzdCh1bnNpZ25lZCBsb25nIHBhcmVudCwgdW5z aWduZWQgbG9uZwo+PiByYXRlLCBzdHJ1Y3QgX2NjdV9ua20gKm5rbSkKPj4gIHsKPj4gQEAgLTEy NCw3ICsxNjQsMTAgQEAgc3RhdGljIHVuc2lnbmVkIGxvbmcgY2N1X25rbV9yb3VuZF9yYXRlKHN0 cnVjdAo+PiBjY3VfbXV4X2ludGVybmFsICptdXgsIGlmIChua20tPmNvbW1vbi5mZWF0dXJlcyAm Cj4+IENDVV9GRUFUVVJFX0ZJWEVEX1BPU1RESVYpCj4+ICAJCXJhdGUgKj0gbmttLT5maXhlZF9w b3N0X2RpdjsKPj4KPj4gLQlyYXRlID0gY2N1X25rbV9maW5kX2Jlc3QoKnBhcmVudF9yYXRlLCBy YXRlLCAmX25rbSk7Cj4+ICsJaWYgKCFjbGtfaHdfY2FuX3NldF9yYXRlX3BhcmVudCgmbmttLT5j b21tb24uaHcpKQo+PiArCQlyYXRlID0gY2N1X25rbV9maW5kX2Jlc3QoKnBhcmVudF9yYXRlLCBy YXRlLCAmX25rbSk7Cj4+ICsJZWxzZQo+PiArCQlyYXRlID0gY2N1X25rbV9maW5kX2Jlc3Rfd2l0 aF9wYXJlbnRfYWRqKHBhcmVudF9odywKPiBwYXJlbnRfcmF0ZSwgcmF0ZSwKPj4gJl9ua20pOwo+ Pgo+PiAgCWlmIChua20tPmNvbW1vbi5mZWF0dXJlcyAmIENDVV9GRUFUVVJFX0ZJWEVEX1BPU1RE SVYpCj4+ICAJCXJhdGUgLz0gbmttLT5maXhlZF9wb3N0X2RpdjsKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBs aXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5m cmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK