Linux clock framework development
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From: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
To: Krzysztof Kozlowski <krzk@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Tomasz Figa <tomasz.figa@gmail.com>
Cc: 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 v1 2/3] clk: samsung: clk-pll: Add support for pll_{1051x,1052x}
Date: Sun, 20 Oct 2024 20:48:24 +0300	[thread overview]
Message-ID: <20241020174825.375096-3-ivo.ivanov.ivanov1@gmail.com> (raw)
In-Reply-To: <20241020174825.375096-1-ivo.ivanov.ivanov1@gmail.com>

These plls are found in the Exynos8895 SoC:
 - pll1051x: Integer PLL with middle frequency
 - pll1052x: Integer PLL with low frequency

The PLLs are similar enough to pll_0822x, so the same code can handle
all.

Locktime for 1051x, 1052x is 150 - the same as the pll_0822x
lock factor. MDIV, SDIV, PDIV masks and bit shifts are also the same
as 0822x.

When defining a PLL, the "con" parameter should be set to CON0
register, like this:

PLL(pll_1051x, 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 <ivo.ivanov.ivanov1@gmail.com>
---
 drivers/clk/samsung/clk-pll.c | 2 ++
 drivers/clk/samsung/clk-pll.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index cca3e6309..be6b51694 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -1370,6 +1370,8 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
 		break;
 	case pll_1417x:
 	case pll_1418x:
+	case pll_1051x:
+	case pll_1052x:
 	case pll_0818x:
 	case pll_0822x:
 	case pll_0516x:
diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h
index 3481941ba..858ab367e 100644
--- a/drivers/clk/samsung/clk-pll.h
+++ b/drivers/clk/samsung/clk-pll.h
@@ -43,6 +43,8 @@ enum samsung_pll_type {
 	pll_0517x,
 	pll_0518x,
 	pll_531x,
+	pll_1051x,
+	pll_1052x,
 };
 
 #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \
-- 
2.43.0


  parent reply	other threads:[~2024-10-20 17:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-20 17:48 [PATCH v1 0/3] clk: samsung: Introduce Exynos8895 clock driver Ivaylo Ivanov
2024-10-20 17:48 ` [PATCH v1 1/3] dt-bindings: clock: Add Exynos8895 SoC CMU bindings Ivaylo Ivanov
2024-10-21  9:38   ` Krzysztof Kozlowski
2024-10-21 14:59     ` Ivaylo Ivanov
2024-10-20 17:48 ` Ivaylo Ivanov [this message]
2024-10-20 17:48 ` [PATCH v1 3/3] clk: samsung: Introduce Exynos8895 clock driver Ivaylo Ivanov

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