Re: [PATCH v5 4/8] mmc: sdhci-of-dwcmshc: factor out code into dwcmshc_rk35xx_init

Adrian Hunter
2024-07-19T13:23:53Z

On 19/07/24 11:46, Chen Wang wrote:
> From: Chen Wang <unicorn_wang@outlook.com>
>
> Continue factor out code fron probe into dwcmshc_rk35xx_init.
>
> Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
> ---
> drivers/mmc/host/sdhci-of-dwcmshc.c | 34 ++++++++++++++---------------
> 1 file changed, 16 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
> index bb0adc2ee325..30e4cea8a058 100644
> --- a/drivers/mmc/host/sdhci-of-dwcmshc.c
> +++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
> @@ -711,12 +711,22 @@ static void rk35xx_sdhci_reset(struct sdhci_host *host, u8 mask)
> sdhci_reset(host, mask);
> }
>
> -static int dwcmshc_rk35xx_init(struct sdhci_host *host, struct dwcmshc_priv *dwc_priv)
> +static int dwcmshc_rk35xx_init(struct device *dev, struct sdhci_host *host,
> + struct dwcmshc_priv *dwc_priv)
> {
> static const char * const clk_ids[] = {"axi", "block", "timer"};
> - struct rk35xx_priv *priv = dwc_priv->priv;
> + struct rk35xx_priv *priv;
> int err;
>
> + priv = devm_kzalloc(dev, sizeof(struct rk35xx_priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + if (of_device_is_compatible(dev->of_node, "rockchip,rk3588-dwcmshc"))
> + priv->devtype = DWCMSHC_RK3588;
> + else
> + priv->devtype = DWCMSHC_RK3568;
> +
> priv->reset = devm_reset_control_array_get_optional_exclusive(mmc_dev(host->mmc));
> if (IS_ERR(priv->reset)) {
> err = PTR_ERR(priv->reset);
> @@ -739,6 +749,8 @@ static int dwcmshc_rk35xx_init(struct sdhci_host *host, struct dwcmshc_priv *dwc
> sdhci_writel(host, 0, DWCMSHC_EMMC_DLL_TXCLK);
> sdhci_writel(host, 0, DWCMSHC_EMMC_DLL_STRBIN);
>
> + dwc_priv->priv = priv;
> +
> return 0;
> }
>
> @@ -1184,7 +1196,6 @@ static int dwcmshc_probe(struct platform_device *pdev)
> struct sdhci_pltfm_host *pltfm_host;
> struct sdhci_host *host;
> struct dwcmshc_priv *priv;
> - struct rk35xx_priv *rk_priv = NULL;
> const struct sdhci_pltfm_data *pltfm_data;
> int err;
> u32 extra, caps;
> @@ -1241,20 +1252,7 @@ static int dwcmshc_probe(struct platform_device *pdev)
> host->mmc_host_ops.execute_tuning = dwcmshc_execute_tuning;
>
> if (pltfm_data == &sdhci_dwcmshc_rk35xx_pdata) {
> - rk_priv = devm_kzalloc(&pdev->dev, sizeof(struct rk35xx_priv), GFP_KERNEL);
> - if (!rk_priv) {
> - err = -ENOMEM;
> - goto err_clk;
> - }
> -
> - if (of_device_is_compatible(pdev->dev.of_node, "rockchip,rk3588-dwcmshc"))
> - rk_priv->devtype = DWCMSHC_RK3588;
> - else
> - rk_priv->devtype = DWCMSHC_RK3568;
> -
> - priv->priv = rk_priv;
> -
> - err = dwcmshc_rk35xx_init(host, priv);
> + err = dwcmshc_rk35xx_init(dev, host, priv);
> if (err)
> goto err_clk;
> }
> @@ -1290,7 +1288,7 @@ static int dwcmshc_probe(struct platform_device *pdev)
> dwcmshc_cqhci_init(host, pdev);
> }
>
> - if (rk_priv)
> + if (priv->priv)

It would be clearer here to use

if (pltfm_data == &sdhci_dwcmshc_rk35xx_pdata)

> dwcmshc_rk35xx_postinit(host, priv);
>
> err = __sdhci_add_host(host);