From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com> To: abel.vesa@nxp.com, mturquette@baylibre.com, sboyd@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Liu Ying <victor.liu@nxp.com>, Fabio Estevam <festevam@gmail.com>, NXP Linux Team <linux-imx@nxp.com>, Peng Fan <peng.fan@nxp.com> Subject: [PATCH 5/7] clk: imx: clk-fracn-gppll: Return rate in rate table properly in ->recalc_rate() Date: Thu, 9 Jun 2022 21:29:00 +0800 [thread overview] Message-ID: <20220609132902.3504651-6-peng.fan@oss.nxp.com> (raw) In-Reply-To: <20220609132902.3504651-1-peng.fan@oss.nxp.com> From: Liu Ying <victor.liu@nxp.com> The PLL parameters in rate table should be directly compared with those read from PLL registers instead of the cooked ones. Fixes: 1b26cb8a77a4 ("clk: imx: support fracn gppll") Cc: Abel Vesa <abel.vesa@nxp.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Peng Fan <peng.fan@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> --- drivers/clk/imx/clk-fracn-gppll.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c index 36a53c60e71f..cb06b0045e9e 100644 --- a/drivers/clk/imx/clk-fracn-gppll.c +++ b/drivers/clk/imx/clk-fracn-gppll.c @@ -131,18 +131,7 @@ static unsigned long clk_fracn_gppll_recalc_rate(struct clk_hw *hw, unsigned lon mfi = FIELD_GET(PLL_MFI_MASK, pll_div); rdiv = FIELD_GET(PLL_RDIV_MASK, pll_div); - rdiv = rdiv + 1; odiv = FIELD_GET(PLL_ODIV_MASK, pll_div); - switch (odiv) { - case 0: - odiv = 2; - break; - case 1: - odiv = 3; - break; - default: - break; - } /* * Sometimes, the recalculated rate has deviation due to @@ -160,6 +149,19 @@ static unsigned long clk_fracn_gppll_recalc_rate(struct clk_hw *hw, unsigned lon if (rate) return (unsigned long)rate; + rdiv = rdiv + 1; + + switch (odiv) { + case 0: + odiv = 2; + break; + case 1: + odiv = 3; + break; + default: + break; + } + /* Fvco = Fref * (MFI + MFN / MFD) */ fvco = fvco * mfi * mfd + fvco * mfn; do_div(fvco, mfd * rdiv * odiv); -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com> To: abel.vesa@nxp.com, mturquette@baylibre.com, sboyd@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Liu Ying <victor.liu@nxp.com>, Fabio Estevam <festevam@gmail.com>, NXP Linux Team <linux-imx@nxp.com>, Peng Fan <peng.fan@nxp.com> Subject: [PATCH 5/7] clk: imx: clk-fracn-gppll: Return rate in rate table properly in ->recalc_rate() Date: Thu, 9 Jun 2022 21:29:00 +0800 [thread overview] Message-ID: <20220609132902.3504651-6-peng.fan@oss.nxp.com> (raw) In-Reply-To: <20220609132902.3504651-1-peng.fan@oss.nxp.com> From: Liu Ying <victor.liu@nxp.com> The PLL parameters in rate table should be directly compared with those read from PLL registers instead of the cooked ones. Fixes: 1b26cb8a77a4 ("clk: imx: support fracn gppll") Cc: Abel Vesa <abel.vesa@nxp.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Peng Fan <peng.fan@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> --- drivers/clk/imx/clk-fracn-gppll.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c index 36a53c60e71f..cb06b0045e9e 100644 --- a/drivers/clk/imx/clk-fracn-gppll.c +++ b/drivers/clk/imx/clk-fracn-gppll.c @@ -131,18 +131,7 @@ static unsigned long clk_fracn_gppll_recalc_rate(struct clk_hw *hw, unsigned lon mfi = FIELD_GET(PLL_MFI_MASK, pll_div); rdiv = FIELD_GET(PLL_RDIV_MASK, pll_div); - rdiv = rdiv + 1; odiv = FIELD_GET(PLL_ODIV_MASK, pll_div); - switch (odiv) { - case 0: - odiv = 2; - break; - case 1: - odiv = 3; - break; - default: - break; - } /* * Sometimes, the recalculated rate has deviation due to @@ -160,6 +149,19 @@ static unsigned long clk_fracn_gppll_recalc_rate(struct clk_hw *hw, unsigned lon if (rate) return (unsigned long)rate; + rdiv = rdiv + 1; + + switch (odiv) { + case 0: + odiv = 2; + break; + case 1: + odiv = 3; + break; + default: + break; + } + /* Fvco = Fref * (MFI + MFN / MFD) */ fvco = fvco * mfi * mfd + fvco * mfn; do_div(fvco, mfd * rdiv * odiv); -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-06-09 13:27 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-06-09 13:28 [PATCH 0/7] clk: imx93: pll/imx93 fixes and update Peng Fan (OSS) 2022-06-09 13:28 ` Peng Fan (OSS) 2022-06-09 13:28 ` [PATCH 1/7] clk: imx93: use adc_root as the parent clock of adc1 Peng Fan (OSS) 2022-06-09 13:28 ` Peng Fan (OSS) 2022-06-15 21:31 ` Abel Vesa 2022-06-15 21:31 ` Abel Vesa 2022-06-09 13:28 ` [PATCH 2/7] clk: imx93: correct nic_media parent Peng Fan (OSS) 2022-06-09 13:28 ` Peng Fan (OSS) 2022-06-15 21:33 ` Abel Vesa 2022-06-15 21:33 ` Abel Vesa 2022-06-09 13:28 ` [PATCH 3/7] clk: imx93: Correct the edma1's parent clock Peng Fan (OSS) 2022-06-09 13:28 ` Peng Fan (OSS) 2022-06-15 21:39 ` Abel Vesa 2022-06-15 21:39 ` Abel Vesa 2022-06-16 0:16 ` Stephen Boyd 2022-06-16 0:16 ` Stephen Boyd 2022-06-16 3:58 ` Peng Fan 2022-06-16 3:58 ` Peng Fan 2022-06-16 14:18 ` Abel Vesa 2022-06-16 14:18 ` Abel Vesa 2022-06-09 13:28 ` [PATCH 4/7] clk: imx: clk-fracn-gppll: fix mfd value Peng Fan (OSS) 2022-06-09 13:28 ` Peng Fan (OSS) 2022-06-09 13:29 ` Peng Fan (OSS) [this message] 2022-06-09 13:29 ` [PATCH 5/7] clk: imx: clk-fracn-gppll: Return rate in rate table properly in ->recalc_rate() Peng Fan (OSS) 2022-06-09 13:29 ` [PATCH 6/7] clk: imx: clk-fracn-gppll: correct rdiv Peng Fan (OSS) 2022-06-09 13:29 ` Peng Fan (OSS) 2022-06-09 13:29 ` [PATCH 7/7] clk: imx: clk-fracn-gppll: Add more freq config for video pll Peng Fan (OSS) 2022-06-09 13:29 ` Peng Fan (OSS) 2022-06-16 16:01 ` [PATCH 0/7] clk: imx93: pll/imx93 fixes and update Abel Vesa 2022-06-16 16:01 ` Abel Vesa
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