| Message ID | 20220610104119.66401-3-alim.akhtar@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for UFS controller found in FSD SoC | expand |
> Subject: [PATCH v4 2/6] phy: samsung-ufs: move cdr offset to drvdata > > Move CDR lock offset to drv data so that it can be extended for other SoCs > which are having CDR lock at different register offset. > > Signed-off-by: Bharat Uppal <bharat.uppal@samsung.com> > Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> > Reviewed-by: Chanho Park <chanho61.park@samsung.com> - Reviewed-by: Chanho Park <chanho61.park@samsung.com> > --- > drivers/phy/samsung/phy-exynos7-ufs.c | 3 +++ > drivers/phy/samsung/phy-exynosautov9-ufs.c | 2 ++ > drivers/phy/samsung/phy-samsung-ufs.c | 4 +++- > drivers/phy/samsung/phy-samsung-ufs.h | 2 +- > 4 files changed, 9 insertions(+), 2 deletions(-) > > diff --git a/drivers/phy/samsung/phy-exynos7-ufs.c > b/drivers/phy/samsung/phy-exynos7-ufs.c > index d1e9d0ae5c1d..72854336f59d 100644 > --- a/drivers/phy/samsung/phy-exynos7-ufs.c > +++ b/drivers/phy/samsung/phy-exynos7-ufs.c > @@ -11,6 +11,8 @@ > #define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1 > #define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0) > > +#define EXYNOS7_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS 0x5e > + > /* Calibration for phy initialization */ static const struct > samsung_ufs_phy_cfg exynos7_pre_init_cfg[] = { > PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_ANY), @@ -74,4 +76,5 @@ > const struct samsung_ufs_phy_drvdata exynos7_ufs_phy = { > .en = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN, > }, > .has_symbol_clk = 1, > + .cdr_lock_status_offset = > EXYNOS7_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS, > }; > diff --git a/drivers/phy/samsung/phy-exynosautov9-ufs.c > b/drivers/phy/samsung/phy-exynosautov9-ufs.c > index fa4d2983eec6..2b256070d657 100644 > --- a/drivers/phy/samsung/phy-exynosautov9-ufs.c > +++ b/drivers/phy/samsung/phy-exynosautov9-ufs.c > @@ -10,6 +10,7 @@ > #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL 0x728 > #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1 > #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0) > +#define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS 0x5e > > #define PHY_TRSV_REG_CFG_AUTOV9(o, v, d) \ > PHY_TRSV_REG_CFG_OFFSET(o, v, d, 0x50) @@ -64,4 +65,5 @@ const > struct samsung_ufs_phy_drvdata exynosautov9_ufs_phy = { > .en = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_EN, > }, > .has_symbol_clk = 0, > + .cdr_lock_status_offset = > +EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS, > }; > diff --git a/drivers/phy/samsung/phy-samsung-ufs.c > b/drivers/phy/samsung/phy-samsung-ufs.c > index 206a79c69a6c..8cec7652b459 100644 > --- a/drivers/phy/samsung/phy-samsung-ufs.c > +++ b/drivers/phy/samsung/phy-samsung-ufs.c > @@ -63,7 +63,8 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct phy > *phy) > } > > err = readl_poll_timeout( > - ufs_phy->reg_pma + PHY_APB_ADDR(PHY_CDR_LOCK_STATUS), > + ufs_phy->reg_pma + > + PHY_APB_ADDR(ufs_phy->drvdata->cdr_lock_status_offset), > val, (val & PHY_CDR_LOCK_BIT), sleep_us, timeout_us); > if (err) > dev_err(ufs_phy->dev, > @@ -327,6 +328,7 @@ static int samsung_ufs_phy_probe(struct > platform_device *pdev) > > drvdata = match->data; > phy->dev = dev; > + phy->drvdata = drvdata; This can be reversing changes of below patch. https://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git/commit/?h=next&id=f86c1d0a58b1f63a176f537e2f6851be49c20ad4 By suggestion of Krzysztof, I removed drvdata assignment to samsung_ufs_phy struct and moved has_symbol_clk from drvdata to samsung_ufs_phy struct. However, I forgot to remove drvdata from samsung_ufs_phy struct... Anyway, you want to get back the drvdata, you may need to add a preceding patch with reconsideration of has_symbol_clk to the drvdata again. Otherwise, you can simply put cdr_lock_status_offset to the samsung_ufs_phy struct and assign the data from drvdata same as has_symbol_clk and isol. Best Regards, Chanho Park
On 10/06/2022 12:41, Alim Akhtar wrote: > Move CDR lock offset to drv data so that it can be extended for other SoCs > which are having CDR lock at different register offset. > > Signed-off-by: Bharat Uppal <bharat.uppal@samsung.com> > Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> > Reviewed-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/drivers/phy/samsung/phy-exynos7-ufs.c b/drivers/phy/samsung/phy-exynos7-ufs.c index d1e9d0ae5c1d..72854336f59d 100644 --- a/drivers/phy/samsung/phy-exynos7-ufs.c +++ b/drivers/phy/samsung/phy-exynos7-ufs.c @@ -11,6 +11,8 @@ #define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1 #define EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0) +#define EXYNOS7_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS 0x5e + /* Calibration for phy initialization */ static const struct samsung_ufs_phy_cfg exynos7_pre_init_cfg[] = { PHY_COMN_REG_CFG(0x00f, 0xfa, PWR_MODE_ANY), @@ -74,4 +76,5 @@ const struct samsung_ufs_phy_drvdata exynos7_ufs_phy = { .en = EXYNOS7_EMBEDDED_COMBO_PHY_CTRL_EN, }, .has_symbol_clk = 1, + .cdr_lock_status_offset = EXYNOS7_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS, }; diff --git a/drivers/phy/samsung/phy-exynosautov9-ufs.c b/drivers/phy/samsung/phy-exynosautov9-ufs.c index fa4d2983eec6..2b256070d657 100644 --- a/drivers/phy/samsung/phy-exynosautov9-ufs.c +++ b/drivers/phy/samsung/phy-exynosautov9-ufs.c @@ -10,6 +10,7 @@ #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL 0x728 #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_MASK 0x1 #define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_EN BIT(0) +#define EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS 0x5e #define PHY_TRSV_REG_CFG_AUTOV9(o, v, d) \ PHY_TRSV_REG_CFG_OFFSET(o, v, d, 0x50) @@ -64,4 +65,5 @@ const struct samsung_ufs_phy_drvdata exynosautov9_ufs_phy = { .en = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CTRL_EN, }, .has_symbol_clk = 0, + .cdr_lock_status_offset = EXYNOSAUTOV9_EMBEDDED_COMBO_PHY_CDR_LOCK_STATUS, }; diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c index 206a79c69a6c..8cec7652b459 100644 --- a/drivers/phy/samsung/phy-samsung-ufs.c +++ b/drivers/phy/samsung/phy-samsung-ufs.c @@ -63,7 +63,8 @@ static int samsung_ufs_phy_wait_for_lock_acq(struct phy *phy) } err = readl_poll_timeout( - ufs_phy->reg_pma + PHY_APB_ADDR(PHY_CDR_LOCK_STATUS), + ufs_phy->reg_pma + + PHY_APB_ADDR(ufs_phy->drvdata->cdr_lock_status_offset), val, (val & PHY_CDR_LOCK_BIT), sleep_us, timeout_us); if (err) dev_err(ufs_phy->dev, @@ -327,6 +328,7 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev) drvdata = match->data; phy->dev = dev; + phy->drvdata = drvdata; phy->cfgs = drvdata->cfgs; phy->has_symbol_clk = drvdata->has_symbol_clk; memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol)); diff --git a/drivers/phy/samsung/phy-samsung-ufs.h b/drivers/phy/samsung/phy-samsung-ufs.h index 854b53bdf347..913542ebff7a 100644 --- a/drivers/phy/samsung/phy-samsung-ufs.h +++ b/drivers/phy/samsung/phy-samsung-ufs.h @@ -40,7 +40,6 @@ /* UFS PHY registers */ #define PHY_PLL_LOCK_STATUS 0x1e -#define PHY_CDR_LOCK_STATUS 0x5e #define PHY_PLL_LOCK_BIT BIT(5) #define PHY_CDR_LOCK_BIT BIT(4) @@ -111,6 +110,7 @@ struct samsung_ufs_phy_drvdata { const struct samsung_ufs_phy_cfg **cfgs; struct samsung_ufs_phy_pmu_isol isol; bool has_symbol_clk; + u32 cdr_lock_status_offset; }; struct samsung_ufs_phy {