From: Peng Fan <peng.fan@oss.nxp.com>
To: Jacky Bai <ping.bai@nxp.com>
Cc: Abel Vesa <abelvesa@kernel.org>, Peng Fan <peng.fan@nxp.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Brian Masney <bmasney@redhat.com>, Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
linux-clk@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3] clk: imx: Add audio PLL debugfs for K-divider control
Date: Tue, 9 Jun 2026 16:33:54 +0800 [thread overview]
Message-ID: <aifP4qpH/oJhGd+I@shlinux89> (raw)
In-Reply-To: <20260604-imx8m_pll_debugfs-v3-1-4e331ebc85d7@nxp.com>
On Thu, Jun 04, 2026 at 09:48:01PM +0800, Jacky Bai wrote:
>Add debugfs support for runtime tuning of the audio PLL K divider,
>which enables fine-grained frequency adjustments for audio PLL.
>This is used for:
> - Audio clock calibration and testing
> - Debugging audio synchronization issues
>
>Two debug interfaces are exported to userspace:
> - delta_k: It is used to adjust the K divider in PLL based on small
> steps
> - pll_parameter: It is used for get PLL's current M-divider,
> P-divider, S-divider & K-divider setting in PLL register
>
>Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
next prev parent reply other threads:[~2026-06-09 8:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-04 13:48 [PATCH v3] clk: imx: Add audio PLL debugfs for K-divider control Jacky Bai
2026-06-09 6:32 ` Abel Vesa
2026-06-09 8:33 ` Peng Fan [this message]
2026-06-09 9:16 ` Abel Vesa
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