RE: [PATCH v3 4/5] scsi: ufs-exynos: add UFS host support for Exynos SoCs

From: Avri Altman
Date: Sun Mar 22 2020 - 08:24:49 EST


> +static int exynos7_ufs_pre_link(struct exynos_ufs *ufs)
> +{
> + struct ufs_hba *hba = ufs->hba;
> + u32 val = ufs->drv_data->uic_attr->pa_dbg_option_suite;
Can pa_dbg_option_suite be replaced by a macro?

> + exynos_ufs_disable_ov_tm(hba);
> +
> + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_OPTION_SUITE_DYN),
> 0xf);
> + ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_OPTION_SUITE_DYN),
> 0xf);
A typo? Set PA_DBG_OPTION_SUITE_DYN twice?

> +#define PWR_MODE_STR_LEN 64
> +static int exynos_ufs_post_pwr_mode(struct ufs_hba *hba,
> + struct ufs_pa_layer_attr *pwr_max,
> + struct ufs_pa_layer_attr *pwr_req)
> +{
> + struct exynos_ufs *ufs = ufshcd_get_variant(hba);
> + struct phy *generic_phy = ufs->phy;
> + struct uic_pwr_mode *pwr = &ufs->pwr_act;
> + char pwr_str[PWR_MODE_STR_LEN] = "";
Un-needed complication IMO - all those snprintf that is.

> +
> +static void exynos_ufs_fit_aggr_timeout(struct exynos_ufs *ufs)
> +{
> + const u8 cntr_div = 40;
Can be replaced by a macro?

> +struct exynos_ufs_drv_data exynos_ufs_drvs = {
> +
> + .compatible = "samsung,exynos7-ufs",
> + .uic_attr = &exynos7_uic_attr,
> + .quirks = UFSHCD_QUIRK_PRDT_BYTE_GRAN |
> + UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR |
> + UFSHCI_QUIRK_BROKEN_HCE |
> + UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR,
> + .opts = EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL |
> + EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL |
> + EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX,
In what way opts are different from quirks?


Thanks,
Avri