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Wed, 03 Sep 2025 08:15:29 -0700 (PDT) X-Google-Smtp-Source: AGHT+IED8E16uAVeM+5vJ137ALVYC0Wh9vbBPAcITc26atyl6FkjgZTLRJMpDAJJZtvLcuHhPJ8whg== X-Received: by 2002:a0c:f083:0:20b0:726:97c8:a6b1 with SMTP id 6a1803df08f44-72697c8a854mr18870126d6.54.1756912529305; Wed, 03 Sep 2025 08:15:29 -0700 (PDT) Received: from [10.12.114.224] ([2600:382:850c:786a:ff8e:13a:e47c:3472]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-720ac16de16sm30827706d6.3.2025.09.03.08.15.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Sep 2025 08:15:28 -0700 (PDT) From: Brian Masney Date: Wed, 03 Sep 2025 11:15:03 -0400 Subject: [PATCH v2 2/6] clk: tegra: divider: convert from round_rate() to determine_rate() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250903-clk-tegra-round-rate-v2-v2-2-3126d321d4e4@redhat.com> References: <20250903-clk-tegra-round-rate-v2-v2-0-3126d321d4e4@redhat.com> In-Reply-To: <20250903-clk-tegra-round-rate-v2-v2-0-3126d321d4e4@redhat.com> To: Peter De Schrijver , Prashant Gaikwad , Michael Turquette , Stephen Boyd , Thierry Reding , Jonathan Hunter Cc: linux-clk@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Masney X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1756912523; l=2145; i=bmasney@redhat.com; s=20250528; h=from:subject:message-id; bh=PJVq4/87gTFJLoaD4HfGqwXTByrz5pGbdwRq3T0o3FM=; b=j1kIFJz9wqZzE3zyvQjx9E1DS9XfHi59LnAkJFgAkMN4jfnDPzUCTDEe/f0U42GNwYY8e/rpk 4odgRZo7fFfA9qPfKqfNveGuLPoi7WmNRviBXe3OJ7PGswYotuYAW0k X-Developer-Key: i=bmasney@redhat.com; a=ed25519; pk=x20f2BQYftANnik+wvlm4HqLqAlNs/npfVcbhHPOK2U= The round_rate() clk ops is deprecated, so migrate this driver from round_rate() to determine_rate() using the Coccinelle semantic patch on the cover letter of this series. Link: https://lore.kernel.org/r/20250710-clk-tegra-round-rate-v1-2-e48ac3df= 4279@redhat.com Signed-off-by: Brian Masney --- drivers/clk/tegra/clk-divider.c | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divide= r.c index 38daf483ddf171293666cea25179a9c8809d8c3f..37439fcb3ac0dd9ff672a9e9339= ed6d5429dabaf 100644 --- a/drivers/clk/tegra/clk-divider.c +++ b/drivers/clk/tegra/clk-divider.c @@ -58,23 +58,31 @@ static unsigned long clk_frac_div_recalc_rate(struct cl= k_hw *hw, return rate; } =20 -static long clk_frac_div_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_frac_div_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct tegra_clk_frac_div *divider =3D to_clk_frac_div(hw); int div, mul; - unsigned long output_rate =3D *prate; + unsigned long output_rate =3D req->best_parent_rate; =20 - if (!rate) - return output_rate; + if (!req->rate) { + req->rate =3D output_rate; =20 - div =3D get_div(divider, rate, output_rate); - if (div < 0) - return *prate; + return 0; + } + + div =3D get_div(divider, req->rate, output_rate); + if (div < 0) { + req->rate =3D req->best_parent_rate; + + return 0; + } =20 mul =3D get_mul(divider); =20 - return DIV_ROUND_UP(output_rate * mul, div + mul); + req->rate =3D DIV_ROUND_UP(output_rate * mul, div + mul); + + return 0; } =20 static int clk_frac_div_set_rate(struct clk_hw *hw, unsigned long rate, @@ -127,7 +135,7 @@ static void clk_divider_restore_context(struct clk_hw *= hw) const struct clk_ops tegra_clk_frac_div_ops =3D { .recalc_rate =3D clk_frac_div_recalc_rate, .set_rate =3D clk_frac_div_set_rate, - .round_rate =3D clk_frac_div_round_rate, + .determine_rate =3D clk_frac_div_determine_rate, .restore_context =3D clk_divider_restore_context, }; =20 --=20 2.50.1