From: Quentin Schulz <quentin.schulz@cherry.de>
To: Jonas Karlman <jonas@kwiboo.se>,
Kever Yang <kever.yang@rock-chips.com>,
Tom Rini <trini@konsulko.com>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Lukasz Majewski <lukma@denx.de>, Simon Glass <sjg@chromium.org>
Cc: u-boot@lists.u-boot-project.org
Subject: Re: [PATCH 03/15] clk: rockchip: pll: Always write the k param
Date: Fri, 7 Aug 2026 15:29:17 +0200 [thread overview]
Message-ID: <ea45a145-5620-4796-b297-01315fd78bb9@cherry.de> (raw)
In-Reply-To: <20260730141308.1218014-4-jonas@kwiboo.se>
Hi Jonas,
On 7/30/26 4:12 PM, Jonas Karlman wrote:
> The k param help determine when a rk3588_pll fracpll should enable or
> bypass use of fractal mode.
>
> Change to always write the value of the k param to reg to allow fractal
> re-configuration and closer match how Linux behaves.
>
There's just one worry that we're writing to undocumented registers when
this is called on an integer PLL for which PLLCON2 is not defined in the
TRM (from the discussion we had with Alexey some weeks ago). However,
the kernel does this already so I guess it's fine.
Fixes: b851c006a150 ("clk: rockchip: pll: Add pll_rk3588 type for rk3588")
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Thanks!
Quentin
next prev parent reply other threads:[~2026-08-07 13:29 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-30 14:12 [PATCH 00/15] rockchip: Miscellaneous RK35xx clock fixes Jonas Karlman
2026-07-30 14:12 ` [PATCH 01/15] clk: rockchip: pll: Fix double use of postdiv1 Jonas Karlman
2026-08-07 9:36 ` Quentin Schulz via U-Boot
2026-08-07 10:38 ` Jonas Karlman
2026-08-07 16:38 ` Quentin Schulz via U-Boot
2026-08-07 13:19 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 02/15] clk: rockchip: pll: Always write the dsmpd flag Jonas Karlman
2026-08-07 13:24 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 03/15] clk: rockchip: pll: Always write the k param Jonas Karlman
2026-08-07 13:29 ` Quentin Schulz [this message]
2026-07-30 14:12 ` [PATCH 04/15] clk: rockchip: pll: Use PLL_FIXED_MODE flag on rk3588/rk3576 plls Jonas Karlman
2026-08-07 14:09 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 05/15] clk: rockchip: pll: Limit special rk3588_pll handling to RK3588 Jonas Karlman
2026-08-07 14:30 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 06/15] clk: rockchip: rk3568: Fix trivial clock configuration errors Jonas Karlman
2026-08-07 14:46 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 07/15] clk: rockchip: rk3588: " Jonas Karlman
2026-08-07 15:07 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 08/15] clk: rockchip: rk3588: Fix possible divide by zero Jonas Karlman
2026-08-07 15:20 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 09/15] clk: rockchip: rk3588: Fix ACLK_BUS_ROOT rate set during probe Jonas Karlman
2026-08-07 15:44 ` Quentin Schulz
2026-07-30 14:12 ` [PATCH 10/15] clk: rockchip: rk3588: Use SPLL_HZ constant Jonas Karlman
2026-08-07 15:46 ` Quentin Schulz
2026-07-30 14:13 ` [PATCH 11/15] clk: rockchip: rk3576: Fix trivial clock configuration errors Jonas Karlman
2026-08-07 16:04 ` Quentin Schulz via U-Boot
2026-07-30 14:13 ` [PATCH 12/15] clk: rockchip: rk3528: " Jonas Karlman
2026-08-07 16:07 ` Quentin Schulz
2026-07-30 14:13 ` [PATCH 13/15] clk: rockchip: rk3506: " Jonas Karlman
2026-08-07 16:08 ` Quentin Schulz
2026-07-30 14:13 ` [PATCH 14/15] clk: rockchip: rk3568: Drop unused GRF syscon lookup Jonas Karlman
2026-08-07 16:16 ` Quentin Schulz
2026-07-30 14:13 ` [PATCH 15/15] clk: rockchip: rk3588: " Jonas Karlman
2026-08-07 16:19 ` Quentin Schulz
2026-08-08 13:37 ` [PATCH 00/15] rockchip: Miscellaneous RK35xx clock fixes Simon Glass
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