phy: qcom-qmp-pcie: simplify clock handling

For some of existing PHYs for new binding we are going to change refgen
to more correct "rchng". Rather than introducing additional code
to handle legacy vs current bindings (and clock names), use
devm_clk_bulk_get_optional().

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230820142035.89903-6-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index cdee109c398d030c3da8aab48ce5005e1e49e015..84a14bffc891f4e3cc2ce3e0c851cfe02101bafe 100644 (file)
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -2194,9 +2194,6 @@ struct qmp_phy_cfg {
        const struct qmp_phy_init_tbl *serdes_4ln_tbl;
        int serdes_4ln_num;
 
-       /* clock ids to be requested */
-       const char * const *clk_list;
-       int num_clks;
        /* resets to be requested */
        const char * const *reset_list;
        int num_resets;
@@ -2275,24 +2272,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 }
 
 /* list of clocks required by phy */
-static const char * const ipq8074_pciephy_clk_l[] = {
-       "aux", "cfg_ahb",
-};
-
-static const char * const msm8996_phy_clk_l[] = {
-       "aux", "cfg_ahb", "ref",
-};
-
-static const char * const sc8280xp_pciephy_clk_l[] = {
-       "aux", "cfg_ahb", "ref", "rchng",
-};
-
-static const char * const sdm845_pciephy_clk_l[] = {
-       "aux", "cfg_ahb", "ref", "refgen",
-};
-
-static const char * const sa8775p_pciephy_clk_l[] = {
-       "aux", "cfg_ahb", "ref", "rchng", "phy_aux",
+static const char * const qmp_pciephy_clk_l[] = {
+       "aux", "cfg_ahb", "ref", "refgen", "rchng", "phy_aux",
 };
 
 /* list of regulators */
@@ -2367,8 +2348,6 @@ static const struct qmp_phy_cfg ipq8074_pciephy_cfg = {
                .pcs            = ipq8074_pcie_pcs_tbl,
                .pcs_num        = ARRAY_SIZE(ipq8074_pcie_pcs_tbl),
        },
-       .clk_list               = ipq8074_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(ipq8074_pciephy_clk_l),
        .reset_list             = ipq8074_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(ipq8074_pciephy_reset_l),
        .vreg_list              = NULL,
@@ -2394,8 +2373,6 @@ static const struct qmp_phy_cfg ipq8074_pciephy_gen3_cfg = {
                .pcs_misc       = ipq8074_pcie_gen3_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(ipq8074_pcie_gen3_pcs_misc_tbl),
        },
-       .clk_list               = ipq8074_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(ipq8074_pciephy_clk_l),
        .reset_list             = ipq8074_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(ipq8074_pciephy_reset_l),
        .vreg_list              = NULL,
@@ -2423,8 +2400,6 @@ static const struct qmp_phy_cfg ipq6018_pciephy_cfg = {
                .pcs_misc       = ipq6018_pcie_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(ipq6018_pcie_pcs_misc_tbl),
        },
-       .clk_list               = ipq8074_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(ipq8074_pciephy_clk_l),
        .reset_list             = ipq8074_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(ipq8074_pciephy_reset_l),
        .vreg_list              = NULL,
@@ -2450,8 +2425,6 @@ static const struct qmp_phy_cfg sdm845_qmp_pciephy_cfg = {
                .pcs_misc       = sdm845_qmp_pcie_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(sdm845_qmp_pcie_pcs_misc_tbl),
        },
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2473,8 +2446,6 @@ static const struct qmp_phy_cfg sdm845_qhp_pciephy_cfg = {
                .pcs            = sdm845_qhp_pcie_pcs_tbl,
                .pcs_num        = ARRAY_SIZE(sdm845_qhp_pcie_pcs_tbl),
        },
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2510,8 +2481,6 @@ static const struct qmp_phy_cfg sm8250_qmp_gen3x1_pciephy_cfg = {
                .pcs_misc       = sm8250_qmp_gen3x1_pcie_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(sm8250_qmp_gen3x1_pcie_pcs_misc_tbl),
        },
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2547,8 +2516,6 @@ static const struct qmp_phy_cfg sm8250_qmp_gen3x2_pciephy_cfg = {
                .pcs_misc       = sm8250_qmp_gen3x2_pcie_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(sm8250_qmp_gen3x2_pcie_pcs_misc_tbl),
        },
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2572,8 +2539,6 @@ static const struct qmp_phy_cfg msm8998_pciephy_cfg = {
                .pcs            = msm8998_pcie_pcs_tbl,
                .pcs_num        = ARRAY_SIZE(msm8998_pcie_pcs_tbl),
        },
-       .clk_list               = msm8996_phy_clk_l,
-       .num_clks               = ARRAY_SIZE(msm8996_phy_clk_l),
        .reset_list             = ipq8074_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(ipq8074_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2601,8 +2566,6 @@ static const struct qmp_phy_cfg sc8180x_pciephy_cfg = {
                .pcs_misc       = sc8180x_qmp_pcie_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(sc8180x_qmp_pcie_pcs_misc_tbl),
        },
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2636,8 +2599,6 @@ static const struct qmp_phy_cfg sc8280xp_qmp_gen3x1_pciephy_cfg = {
                .serdes_num     = ARRAY_SIZE(sc8280xp_qmp_gen3x1_pcie_rc_serdes_tbl),
        },
 
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2671,8 +2632,6 @@ static const struct qmp_phy_cfg sc8280xp_qmp_gen3x2_pciephy_cfg = {
                .serdes_num     = ARRAY_SIZE(sc8280xp_qmp_gen3x2_pcie_rc_serdes_tbl),
        },
 
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2709,8 +2668,6 @@ static const struct qmp_phy_cfg sc8280xp_qmp_gen3x4_pciephy_cfg = {
        .serdes_4ln_tbl         = sc8280xp_qmp_gen3x4_pcie_serdes_4ln_tbl,
        .serdes_4ln_num         = ARRAY_SIZE(sc8280xp_qmp_gen3x4_pcie_serdes_4ln_tbl),
 
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2751,8 +2708,6 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
                .pcs_misc_num   = ARRAY_SIZE(sdx55_qmp_pcie_ep_pcs_misc_tbl),
        },
 
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2788,8 +2743,6 @@ static const struct qmp_phy_cfg sm8350_qmp_gen3x1_pciephy_cfg = {
                .rx_num         = ARRAY_SIZE(sm8350_qmp_gen3x1_pcie_rc_rx_tbl),
        },
 
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2825,8 +2778,6 @@ static const struct qmp_phy_cfg sm8350_qmp_gen3x2_pciephy_cfg = {
                .pcs_num        = ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_rc_pcs_tbl),
        },
 
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2854,8 +2805,6 @@ static const struct qmp_phy_cfg sdx65_qmp_pciephy_cfg = {
                        .pcs_misc       = sdx65_qmp_pcie_pcs_misc_tbl,
                        .pcs_misc_num   = ARRAY_SIZE(sdx65_qmp_pcie_pcs_misc_tbl),
                },
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2889,8 +2838,6 @@ static const struct qmp_phy_cfg sm8450_qmp_gen3x1_pciephy_cfg = {
                .rx_num         = ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_rc_rx_tbl),
        },
 
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2931,8 +2878,6 @@ static const struct qmp_phy_cfg sm8450_qmp_gen4x2_pciephy_cfg = {
                .pcs_misc_num   = ARRAY_SIZE(sm8450_qmp_gen4x2_pcie_ep_pcs_misc_tbl),
        },
 
-       .clk_list               = sdm845_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sdm845_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2960,8 +2905,6 @@ static const struct qmp_phy_cfg sm8550_qmp_gen3x2_pciephy_cfg = {
                .pcs_misc       = sm8550_qmp_gen3x2_pcie_pcs_misc_tbl,
                .pcs_misc_num   = ARRAY_SIZE(sm8550_qmp_gen3x2_pcie_pcs_misc_tbl),
        },
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -2991,8 +2934,6 @@ static const struct qmp_phy_cfg sm8550_qmp_gen4x2_pciephy_cfg = {
                .ln_shrd                = sm8550_qmp_gen4x2_pcie_ln_shrd_tbl,
                .ln_shrd_num            = ARRAY_SIZE(sm8550_qmp_gen4x2_pcie_ln_shrd_tbl),
        },
-       .clk_list               = sc8280xp_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sc8280xp_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = sm8550_qmp_phy_vreg_l,
@@ -3028,8 +2969,6 @@ static const struct qmp_phy_cfg sa8775p_qmp_gen4x2_pciephy_cfg = {
                .pcs_misc_num   = ARRAY_SIZE(sa8775p_qmp_gen4_pcie_rc_pcs_misc_tbl),
        },
 
-       .clk_list               = sa8775p_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sa8775p_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -3064,8 +3003,6 @@ static const struct qmp_phy_cfg sa8775p_qmp_gen4x4_pciephy_cfg = {
                .pcs_misc_num   = ARRAY_SIZE(sa8775p_qmp_gen4_pcie_rc_pcs_misc_tbl),
        },
 
-       .clk_list               = sa8775p_pciephy_clk_l,
-       .num_clks               = ARRAY_SIZE(sa8775p_pciephy_clk_l),
        .reset_list             = sdm845_pciephy_reset_l,
        .num_resets             = ARRAY_SIZE(sdm845_pciephy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
@@ -3188,7 +3125,7 @@ static int qmp_pcie_init(struct phy *phy)
                goto err_assert_reset;
        }
 
-       ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks);
+       ret = clk_bulk_prepare_enable(ARRAY_SIZE(qmp_pciephy_clk_l), qmp->clks);
        if (ret)
                goto err_assert_reset;
 
@@ -3209,7 +3146,7 @@ static int qmp_pcie_exit(struct phy *phy)
 
        reset_control_bulk_assert(cfg->num_resets, qmp->resets);
 
-       clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);
+       clk_bulk_disable_unprepare(ARRAY_SIZE(qmp_pciephy_clk_l), qmp->clks);
 
        regulator_bulk_disable(cfg->num_vregs, qmp->vregs);
 
@@ -3392,9 +3329,8 @@ static int qmp_pcie_reset_init(struct qmp_pcie *qmp)
 
 static int qmp_pcie_clk_init(struct qmp_pcie *qmp)
 {
-       const struct qmp_phy_cfg *cfg = qmp->cfg;
        struct device *dev = qmp->dev;
-       int num = cfg->num_clks;
+       int num = ARRAY_SIZE(qmp_pciephy_clk_l);
        int i;
 
        qmp->clks = devm_kcalloc(dev, num, sizeof(*qmp->clks), GFP_KERNEL);
@@ -3402,9 +3338,9 @@ static int qmp_pcie_clk_init(struct qmp_pcie *qmp)
                return -ENOMEM;
 
        for (i = 0; i < num; i++)
-               qmp->clks[i].id = cfg->clk_list[i];
+               qmp->clks[i].id = qmp_pciephy_clk_l[i];
 
-       return devm_clk_bulk_get(dev, num, qmp->clks);
+       return devm_clk_bulk_get_optional(dev, num, qmp->clks);
 }
 
 static void phy_clk_release_provider(void *res)