linux-kernel - Re: [PATCH 2/3] clk: meson: axg-audio: setup regmap max

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Message-ID: <5c57fbc8-d911-46ee-b421-ec31a00e0f91@linaro.org>
Date: Fri, 19 Jul 2024 11:59:13 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Jerome Brunet <jbrunet@...libre.com>, Stephen Boyd <sboyd@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org,
 linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH 2/3] clk: meson: axg-audio: setup regmap max_register
 based on the SoC

On 19/07/2024 11:39, Jerome Brunet wrote:
> The register region of axg-audio tends to grow with the addition of
> new supported SoC. Mapping slightly more has not been causing problem
> so far but it is not viable to continue like this long term.
> 
> Setup the max register based on what is necessary on the related SoC.
> 
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>   drivers/clk/meson/axg-audio.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c
> index e03a5bf899c0..2426f3dbb7a2 100644
> --- a/drivers/clk/meson/axg-audio.c
> +++ b/drivers/clk/meson/axg-audio.c
> @@ -1726,11 +1726,10 @@ static const struct reset_control_ops axg_audio_rstc_ops = {
>   	.status = axg_audio_reset_status,
>   };
>   
> -static const struct regmap_config axg_audio_regmap_cfg = {
> +static struct regmap_config axg_audio_regmap_cfg = {
>   	.reg_bits	= 32,
>   	.val_bits	= 32,
>   	.reg_stride	= 4,
> -	.max_register	= AUDIO_CLK_SPDIFOUT_B_CTRL,
>   };
>   
>   struct audioclk_data {
> @@ -1739,6 +1738,7 @@ struct audioclk_data {
>   	struct meson_clk_hw_data hw_clks;
>   	unsigned int reset_offset;
>   	unsigned int reset_num;
> +	unsigned int max_register;
>   };
>   
>   static int axg_audio_clkc_probe(struct platform_device *pdev)
> @@ -1760,6 +1760,7 @@ static int axg_audio_clkc_probe(struct platform_device *pdev)
>   	if (IS_ERR(regs))
>   		return PTR_ERR(regs);
>   
> +	axg_audio_regmap_cfg.max_register = data->max_register;
>   	map = devm_regmap_init_mmio(dev, regs, &axg_audio_regmap_cfg);
>   	if (IS_ERR(map)) {
>   		dev_err(dev, "failed to init regmap: %ld\n", PTR_ERR(map));
> @@ -1828,6 +1829,7 @@ static const struct audioclk_data axg_audioclk_data = {
>   		.hws = axg_audio_hw_clks,
>   		.num = ARRAY_SIZE(axg_audio_hw_clks),
>   	},
> +	.max_register = AUDIO_CLK_PDMIN_CTRL1,
>   };
>   
>   static const struct audioclk_data g12a_audioclk_data = {
> @@ -1839,6 +1841,7 @@ static const struct audioclk_data g12a_audioclk_data = {
>   	},
>   	.reset_offset = AUDIO_SW_RESET,
>   	.reset_num = 26,
> +	.max_register = AUDIO_CLK_SPDIFOUT_B_CTRL,
>   };
>   
>   static const struct audioclk_data sm1_audioclk_data = {
> @@ -1850,6 +1853,7 @@ static const struct audioclk_data sm1_audioclk_data = {
>   	},
>   	.reset_offset = AUDIO_SM1_SW_RESET0,
>   	.reset_num = 39,
> +	.max_register = AUDIO_CLK_SPDIFOUT_B_CTRL,
>   };
>   
>   static const struct of_device_id clkc_match_table[] = {

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>