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[79.100.18.255]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b65eb036706sm9606466b.41.2025.10.17.09.14.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Oct 2025 09:14:18 -0700 (PDT) From: Ivaylo Ivanov To: Krzysztof Kozlowski , Sylwester Nawrocki , Chanwoo Choi Cc: Alim Akhtar , Michael Turquette , Stephen Boyd , Rob Herring , Conor Dooley , linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/5] clk: samsung: clk-pll: Add support for pll_1419x Date: Fri, 17 Oct 2025 19:13:31 +0300 Message-ID: <20251017161334.1295955-4-ivo.ivanov.ivanov1@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251017161334.1295955-1-ivo.ivanov.ivanov1@gmail.com> References: <20251017161334.1295955-1-ivo.ivanov.ivanov1@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- Changes from v2: - rebase on next - add r-b tag from Peng Fan --- drivers/clk/samsung/clk-pll.c | 7 ++++++- drivers/clk/samsung/clk-pll.h | 10 ++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 4700eadad..3c7333529 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -234,7 +234,11 @@ static unsigned long samsung_pll35xx_recalc_rate(struct clk_hw *hw, pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK; sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK; - fvco *= mdiv; + if (pll->type == pll_1419x) + fvco *= (2 * mdiv); + else + fvco *= mdiv; + do_div(fvco, (pdiv << sdiv)); return (unsigned long)fvco; @@ -1498,6 +1502,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, case pll_1451x: case pll_1452x: case pll_142xx: + case pll_1419x: case pll_141xx: case pll_1017x: pll->enable_offs = PLL35XX_ENABLE_SHIFT; diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h index 3c7575cde..04b3fe97f 100644 --- a/drivers/clk/samsung/clk-pll.h +++ b/drivers/clk/samsung/clk-pll.h @@ -52,6 +52,7 @@ enum samsung_pll_type { pll_1017x, pll_1031x, pll_141xx, + pll_1419x, }; #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \ @@ -68,6 +69,15 @@ enum samsung_pll_type { .sdiv = (_s), \ } +#define PLL_1419X_RATE(_fin, _rate, _m, _p, _s) \ + { \ + .rate = PLL_VALID_RATE(_fin, _rate, \ + 2 * _m, _p, _s, 0, 16), \ + .mdiv = (_m), \ + .pdiv = (_p), \ + .sdiv = (_s), \ + } + #define PLL_36XX_RATE(_fin, _rate, _m, _p, _s, _k) \ { \ .rate = PLL_VALID_RATE(_fin, _rate, \ -- 2.43.0