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[91.139.201.119]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45e017b4222sm136476615e9.20.2025.09.14.05.21.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Sep 2025 05:21:22 -0700 (PDT) From: Ivaylo Ivanov To: Krzysztof Kozlowski , Sylwester Nawrocki , Chanwoo Choi , Alim Akhtar , Michael Turquette , Stephen Boyd , Rob Herring , Conor Dooley Cc: linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 3/5] clk: samsung: clk-pll: Add support for pll_1419x Date: Sun, 14 Sep 2025 15:21:14 +0300 Message-ID: <20250914122116.2616801-4-ivo.ivanov.ivanov1@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250914122116.2616801-1-ivo.ivanov.ivanov1@gmail.com> References: <20250914122116.2616801-1-ivo.ivanov.ivanov1@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The PLL is similar to pll_35xx, with the following differences: - different locktime - 150 instead of 270, as with pll_142xx - different rate calculation When defining a PLL, the "con" parameter should be set to CON0 register, like this: PLL(pll_1419x, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk", PLL_LOCKTIME_PLL_SHARED0, PLL_CON0_PLL_SHARED0, pll_shared0_rate_table), Signed-off-by: Ivaylo Ivanov Reviewed-by: Peng Fan --- drivers/clk/samsung/clk-pll.c | 10 ++++++++-- drivers/clk/samsung/clk-pll.h | 10 ++++++++++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index acb366f14..6b3593445 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -229,7 +229,11 @@ static unsigned long samsung_pll35xx_recalc_rate(struc= t clk_hw *hw, pdiv =3D (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK; sdiv =3D (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK; =20 - fvco *=3D mdiv; + if (pll->type =3D=3D pll_1419x) + fvco *=3D (2 * mdiv); + else + fvco *=3D mdiv; + do_div(fvco, (pdiv << sdiv)); =20 return (unsigned long)fvco; @@ -273,7 +277,8 @@ static int samsung_pll35xx_set_rate(struct clk_hw *hw, = unsigned long drate, } =20 /* Set PLL lock time. */ - if (pll->type =3D=3D pll_142xx || pll->type =3D=3D pll_141xx) + if (pll->type =3D=3D pll_142xx || pll->type =3D=3D pll_141xx || + pll->type =3D=3D pll_1419x) writel_relaxed(rate->pdiv * PLL142XX_LOCK_FACTOR, pll->lock_reg); else @@ -1373,6 +1378,7 @@ static void __init _samsung_clk_register_pll(struct s= amsung_clk_provider *ctx, case pll_1450x: case pll_1451x: case pll_1452x: + case pll_1419x: case pll_141xx: case pll_142xx: pll->enable_offs =3D PLL35XX_ENABLE_SHIFT; diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h index 989addfdb..c07d76121 100644 --- a/drivers/clk/samsung/clk-pll.h +++ b/drivers/clk/samsung/clk-pll.h @@ -50,6 +50,7 @@ enum samsung_pll_type { pll_0732x, pll_4311, pll_141xx, + pll_1419x, }; =20 #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \ @@ -57,6 +58,15 @@ enum samsung_pll_type { #define PLL_VALID_RATE(_fin, _fout, _m, _p, _s, _k, _ks) ((_fout) + \ BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) !=3D (_fout))) =20 +#define PLL_1419X_RATE(_fin, _rate, _m, _p, _s) \ + { \ + .rate =3D PLL_VALID_RATE(_fin, _rate, \ + 2 * _m, _p, _s, 0, 16), \ + .mdiv =3D (_m), \ + .pdiv =3D (_p), \ + .sdiv =3D (_s), \ + } + #define PLL_35XX_RATE(_fin, _rate, _m, _p, _s) \ { \ .rate =3D PLL_VALID_RATE(_fin, _rate, \ --=20 2.43.0