[PATCH v3 02/10] phy: qcom-qmp-combo: simplify clock handling
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Sun May 21 13:23:13 PDT 2023
For new binding we are going to drop ref_clk_src clock and always use
ref clock. Rather than introducing additional code to handle legacy vs
current bindings (and clock names), use devm_clk_bulk_get_optional()
when new bindings are used and devm_clk_bulk_get_all() when legacy
bindings are in place.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 67 ++++++++---------------
1 file changed, 23 insertions(+), 44 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 2bff1bbb8610..b04392be2e3f 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -1271,9 +1271,6 @@ struct qmp_phy_cfg {
int (*calibrate_dp_phy)(struct qmp_combo *qmp);
void (*dp_aux_init)(struct qmp_combo *qmp);
- /* 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;
@@ -1315,6 +1312,7 @@ struct qmp_combo {
struct clk *pipe_clk;
struct clk_bulk_data *clks;
+ int num_clks;
struct reset_control_bulk_data *resets;
struct regulator_bulk_data *vregs;
@@ -1380,19 +1378,10 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
}
/* list of clocks required by phy */
-static const char * const qmp_v3_phy_clk_l[] = {
+static const char * const qmp_combo_phy_clk_l[] = {
"aux", "cfg_ahb", "ref", "com_aux",
};
-static const char * const qmp_v4_phy_clk_l[] = {
- "aux", "ref", "com_aux",
-};
-
-/* the primary usb3 phy on sm8250 doesn't have a ref clock */
-static const char * const qmp_v4_sm8250_usbphy_clk_l[] = {
- "aux", "ref_clk_src", "com_aux"
-};
-
/* list of resets */
static const char * const msm8996_usb3phy_reset_l[] = {
"phy", "common",
@@ -1466,8 +1455,6 @@ static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = {
.configure_dp_phy = qmp_v3_configure_dp_phy,
.calibrate_dp_phy = qmp_v3_calibrate_dp_phy,
- .clk_list = qmp_v3_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l),
.reset_list = sc7180_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(sc7180_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1511,8 +1498,6 @@ static const struct qmp_phy_cfg sdm845_usb3dpphy_cfg = {
.configure_dp_phy = qmp_v3_configure_dp_phy,
.calibrate_dp_phy = qmp_v3_calibrate_dp_phy,
- .clk_list = qmp_v3_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1558,8 +1543,6 @@ static const struct qmp_phy_cfg sc8180x_usb3dpphy_cfg = {
.configure_dp_phy = qmp_v4_configure_dp_phy,
.calibrate_dp_phy = qmp_v4_calibrate_dp_phy,
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1606,8 +1589,6 @@ static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = {
.configure_dp_phy = qmp_v5_configure_dp_phy,
.calibrate_dp_phy = qmp_v4_calibrate_dp_phy,
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1651,8 +1632,6 @@ static const struct qmp_phy_cfg sm6350_usb3dpphy_cfg = {
.configure_dp_phy = qmp_v3_configure_dp_phy,
.calibrate_dp_phy = qmp_v3_calibrate_dp_phy,
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1696,8 +1675,6 @@ static const struct qmp_phy_cfg sm8250_usb3dpphy_cfg = {
.configure_dp_phy = qmp_v4_configure_dp_phy,
.calibrate_dp_phy = qmp_v4_calibrate_dp_phy,
- .clk_list = qmp_v4_sm8250_usbphy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_sm8250_usbphy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1746,8 +1723,6 @@ static const struct qmp_phy_cfg sm8350_usb3dpphy_cfg = {
.configure_dp_phy = qmp_v4_configure_dp_phy,
.calibrate_dp_phy = qmp_v4_calibrate_dp_phy,
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -1796,8 +1771,6 @@ static const struct qmp_phy_cfg sm8550_usb3dpphy_cfg = {
.calibrate_dp_phy = qmp_v4_calibrate_dp_phy,
.regs = qmp_v4_usb3phy_regs_layout,
- .clk_list = qmp_v4_phy_clk_l,
- .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l),
.reset_list = msm8996_usb3phy_reset_l,
.num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l),
.vreg_list = qmp_phy_vreg_l,
@@ -2503,7 +2476,7 @@ static int qmp_combo_com_init(struct qmp_combo *qmp, bool force)
goto err_disable_regulators;
}
- ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks);
+ ret = clk_bulk_prepare_enable(qmp->num_clks, qmp->clks);
if (ret)
goto err_assert_reset;
@@ -2553,7 +2526,7 @@ static int qmp_combo_com_exit(struct qmp_combo *qmp, bool force)
reset_control_bulk_assert(cfg->num_resets, qmp->resets);
- clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);
+ clk_bulk_disable_unprepare(qmp->num_clks, qmp->clks);
regulator_bulk_disable(cfg->num_vregs, qmp->vregs);
@@ -2832,7 +2805,6 @@ static void qmp_combo_disable_autonomous_mode(struct qmp_combo *qmp)
static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev)
{
struct qmp_combo *qmp = dev_get_drvdata(dev);
- const struct qmp_phy_cfg *cfg = qmp->cfg;
dev_vdbg(dev, "Suspending QMP phy, mode:%d\n", qmp->mode);
@@ -2844,7 +2816,7 @@ static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev)
qmp_combo_enable_autonomous_mode(qmp);
clk_disable_unprepare(qmp->pipe_clk);
- clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);
+ clk_bulk_disable_unprepare(qmp->num_clks, qmp->clks);
return 0;
}
@@ -2852,7 +2824,6 @@ static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev)
static int __maybe_unused qmp_combo_runtime_resume(struct device *dev)
{
struct qmp_combo *qmp = dev_get_drvdata(dev);
- const struct qmp_phy_cfg *cfg = qmp->cfg;
int ret = 0;
dev_vdbg(dev, "Resuming QMP phy, mode:%d\n", qmp->mode);
@@ -2862,14 +2833,14 @@ static int __maybe_unused qmp_combo_runtime_resume(struct device *dev)
return 0;
}
- ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks);
+ ret = clk_bulk_prepare_enable(qmp->num_clks, qmp->clks);
if (ret)
return ret;
ret = clk_prepare_enable(qmp->pipe_clk);
if (ret) {
dev_err(dev, "pipe_clk enable failed, err=%d\n", ret);
- clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);
+ clk_bulk_disable_unprepare(qmp->num_clks, qmp->clks);
return ret;
}
@@ -2940,9 +2911,8 @@ static int qmp_combo_reset_init(struct qmp_combo *qmp)
static int qmp_combo_clk_init(struct qmp_combo *qmp)
{
- const struct qmp_phy_cfg *cfg = qmp->cfg;
struct device *dev = qmp->dev;
- int num = cfg->num_clks;
+ int num = ARRAY_SIZE(qmp_combo_phy_clk_l);
int i;
qmp->clks = devm_kcalloc(dev, num, sizeof(*qmp->clks), GFP_KERNEL);
@@ -2950,9 +2920,11 @@ static int qmp_combo_clk_init(struct qmp_combo *qmp)
return -ENOMEM;
for (i = 0; i < num; i++)
- qmp->clks[i].id = cfg->clk_list[i];
+ qmp->clks[i].id = qmp_combo_phy_clk_l[i];
- return devm_clk_bulk_get(dev, num, qmp->clks);
+ qmp->num_clks = num;
+
+ return devm_clk_bulk_get_optional(dev, num, qmp->clks);
}
static void phy_clk_release_provider(void *res)
@@ -3158,6 +3130,12 @@ static int phy_dp_clks_register(struct qmp_combo *qmp, struct device_node *np)
if (ret)
return ret;
+ ret = devm_clk_bulk_get_all(qmp->dev, &qmp->clks);
+ if (ret < 0)
+ return ret;
+
+ qmp->num_clks = ret;
+
return 0;
}
@@ -3427,6 +3405,7 @@ static int qmp_combo_parse_dt(struct qmp_combo *qmp)
const struct qmp_combo_offsets *offs = cfg->offsets;
struct device *dev = qmp->dev;
void __iomem *base;
+ int ret;
if (!offs)
return -EINVAL;
@@ -3456,6 +3435,10 @@ static int qmp_combo_parse_dt(struct qmp_combo *qmp)
}
qmp->dp_dp_phy = base + offs->dp_dp_phy;
+ ret = qmp_combo_clk_init(qmp);
+ if (ret)
+ return ret;
+
qmp->pipe_clk = devm_clk_get(dev, "usb3_pipe");
if (IS_ERR(qmp->pipe_clk)) {
return dev_err_probe(dev, PTR_ERR(qmp->pipe_clk),
@@ -3504,10 +3487,6 @@ static int qmp_combo_probe(struct platform_device *pdev)
mutex_init(&qmp->phy_mutex);
- ret = qmp_combo_clk_init(qmp);
- if (ret)
- return ret;
-
ret = qmp_combo_reset_init(qmp);
if (ret)
return ret;
--
2.39.2
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