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From: Heiko Stuebner <heiko@sntech.de>
To: Michael Turquette <mturquette@baylibre.com>,
 Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>
Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
 linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
 devicetree@vger.kernel.org, David Jander <david@protonic.nl>,
 Sascha Hauer <s.hauer@pengutronix.de>
Subject: Re: [PATCH] clk: rockchip: clk-rk3568.c: Add missing USB480M_PHY mux
Date: Thu, 04 Apr 2024 21:43:15 +0200
Message-ID: <3612648.44csPzL39Z@phil>
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 <20240404-clk-rockchip-rk3568-add-usb480m-phy-mux-v1-1-e8542afd58b9@pengutronix.de>
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 <20240404-clk-rockchip-rk3568-add-usb480m-phy-mux-v1-1-e8542afd58b9@pengutronix.de>
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Hi Sascha,

Am Donnerstag, 4. April 2024, 09:27:01 CEST schrieb Sascha Hauer:
> From: David Jander <david@protonic.nl>
> 
> The USB480M clock can source from a MUX that selects the clock to come
> from either of the USB-phy internal 480MHz PLLs. These clocks are
> provided by the USB phy driver.
> 
> Signed-off-by: David Jander <david@protonic.nl>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  drivers/clk/rockchip/clk-rk3568.c      | 4 ++++
>  include/dt-bindings/clock/rk3568-cru.h | 1 +
>  2 files changed, 5 insertions(+)
> 
> diff --git a/drivers/clk/rockchip/clk-rk3568.c b/drivers/clk/rockchip/clk-rk3568.c
> index 8cb21d10beca2..2d44bcaef046b 100644
> --- a/drivers/clk/rockchip/clk-rk3568.c
> +++ b/drivers/clk/rockchip/clk-rk3568.c
> @@ -215,6 +215,7 @@ static const struct rockchip_cpuclk_reg_data rk3568_cpuclk_data = {
>  
>  PNAME(mux_pll_p)			= { "xin24m" };
>  PNAME(mux_usb480m_p)			= { "xin24m", "usb480m_phy", "clk_rtc_32k" };
> +PNAME(mux_usb480m_phy_p)		= { "clk_usbphy0_480m", "clk_usbphy1_480m"};
>  PNAME(mux_armclk_p)			= { "apll", "gpll" };
>  PNAME(clk_i2s0_8ch_tx_p)		= { "clk_i2s0_8ch_tx_src", "clk_i2s0_8ch_tx_frac", "i2s0_mclkin", "xin_osc0_half" };
>  PNAME(clk_i2s0_8ch_rx_p)		= { "clk_i2s0_8ch_rx_src", "clk_i2s0_8ch_rx_frac", "i2s0_mclkin", "xin_osc0_half" };
> @@ -485,6 +486,9 @@ static struct rockchip_clk_branch rk3568_clk_branches[] __initdata = {
>  	MUX(USB480M, "usb480m", mux_usb480m_p, CLK_SET_RATE_PARENT,
>  			RK3568_MODE_CON0, 14, 2, MFLAGS),
>  
> +	MUX(USB480M_PHY, "usb480m_phy", mux_usb480m_phy_p, CLK_SET_RATE_PARENT,
> +			RK3568_MISC_CON2, 15, 1, MFLAGS),
> +
>  	/* PD_CORE */
>  	COMPOSITE(0, "sclk_core_src", apll_gpll_npll_p, CLK_IGNORE_UNUSED,
>  			RK3568_CLKSEL_CON(2), 8, 2, MFLAGS, 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
> diff --git a/include/dt-bindings/clock/rk3568-cru.h b/include/dt-bindings/clock/rk3568-cru.h
> index d29890865150d..5263085c5b238 100644
> --- a/include/dt-bindings/clock/rk3568-cru.h
> +++ b/include/dt-bindings/clock/rk3568-cru.h
> @@ -78,6 +78,7 @@
>  #define CPLL_333M		9
>  #define ARMCLK			10
>  #define USB480M			11
> +#define USB480M_PHY		12
>  #define ACLK_CORE_NIU2BUS	18
>  #define CLK_CORE_PVTM		19
>  #define CLK_CORE_PVTM_CORE	20
> 

Please separate the code change and clock-id addition into separate
patches. That way dt-maintainers will more easily see that there are
changes to the dt-binding inside.

Other than that, the change looks fine :-)


Thanks
Heiko