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Message-ID: <47b460245338e9a59b75dd72ea378a47b058a0be.1752176711.git.Ryan.Wanner@microchip.com>
Date: Thu, 10 Jul 2025 13:07:04 -0700
From: <Ryan.Wanner@...rochip.com>
To: <mturquette@...libre.com>, <sboyd@...nel.org>,
<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
<claudiu.beznea@...on.dev>
CC: <varshini.rajendran@...rochip.com>, <linux-clk@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
<robh@...nel.org>
Subject: [PATCH v3 11/32] clk: at91: clk-usb: add support for clk_parent_data
From: Claudiu Beznea <claudiu.beznea@...on.dev>
Add support for clk_parent_data in usb clock driver.
All the SoC based drivers that rely on clk-usb were adapted
to the new API change. The switch itself for SoCs will be done
in subsequent patches.
Signed-off-by: Claudiu Beznea <claudiu.beznea@...on.dev>
[ryan.wanner@...rochip: Add SAMA7D65 and SAM9X75 SoCs to the changes.
Change how the main_xtal and slcks are initialized so they match the
parent_data API]
Signed-off-by: Ryan Wanner <Ryan.Wanner@...rochip.com>
---
drivers/clk/at91/at91rm9200.c | 2 +-
drivers/clk/at91/at91sam9260.c | 2 +-
drivers/clk/at91/at91sam9g45.c | 2 +-
drivers/clk/at91/at91sam9n12.c | 2 +-
drivers/clk/at91/at91sam9x5.c | 2 +-
drivers/clk/at91/clk-usb.c | 41 ++++++++++++++++++++++------------
drivers/clk/at91/dt-compat.c | 6 ++---
drivers/clk/at91/pmc.h | 11 +++++----
drivers/clk/at91/sam9x60.c | 2 +-
drivers/clk/at91/sam9x7.c | 27 +++++++++++-----------
drivers/clk/at91/sama5d2.c | 2 +-
drivers/clk/at91/sama5d3.c | 2 +-
drivers/clk/at91/sama5d4.c | 2 +-
drivers/clk/at91/sama7d65.c | 33 ++++++++++++++-------------
14 files changed, 76 insertions(+), 60 deletions(-)
diff --git a/drivers/clk/at91/at91rm9200.c b/drivers/clk/at91/at91rm9200.c
index 3f19e737ae4d..e5a034f208d8 100644
--- a/drivers/clk/at91/at91rm9200.c
+++ b/drivers/clk/at91/at91rm9200.c
@@ -157,7 +157,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
at91rm9200_pmc->chws[PMC_MCK] = hw;
- hw = at91rm9200_clk_register_usb(regmap, "usbck", "pllbck", usb_div);
+ hw = at91rm9200_clk_register_usb(regmap, "usbck", "pllbck", NULL, usb_div);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
index 0799a13060ea..ae6f126f204a 100644
--- a/drivers/clk/at91/at91sam9260.c
+++ b/drivers/clk/at91/at91sam9260.c
@@ -434,7 +434,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
at91sam9260_pmc->chws[PMC_MCK] = hw;
- hw = at91rm9200_clk_register_usb(regmap, "usbck", "pllbck", usb_div);
+ hw = at91rm9200_clk_register_usb(regmap, "usbck", "pllbck", NULL, usb_div);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/at91sam9g45.c b/drivers/clk/at91/at91sam9g45.c
index f45a7b80f7d8..684d2bcb36e8 100644
--- a/drivers/clk/at91/at91sam9g45.c
+++ b/drivers/clk/at91/at91sam9g45.c
@@ -176,7 +176,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
parent_names[0] = "plladivck";
parent_names[1] = "utmick";
- hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2);
+ hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, NULL, 2);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/at91sam9n12.c b/drivers/clk/at91/at91sam9n12.c
index 751786184ae2..9fc20b177b13 100644
--- a/drivers/clk/at91/at91sam9n12.c
+++ b/drivers/clk/at91/at91sam9n12.c
@@ -201,7 +201,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
at91sam9n12_pmc->chws[PMC_MCK] = hw;
- hw = at91sam9n12_clk_register_usb(regmap, "usbck", "pllbck");
+ hw = at91sam9n12_clk_register_usb(regmap, "usbck", "pllbck", NULL);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
index 3b801d12fac0..5728cfb9036f 100644
--- a/drivers/clk/at91/at91sam9x5.c
+++ b/drivers/clk/at91/at91sam9x5.c
@@ -222,7 +222,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
parent_names[0] = "plladivck";
parent_names[1] = "utmick";
- hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2);
+ hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, NULL, 2);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c
index b0696a928aa9..b2503fad4543 100644
--- a/drivers/clk/at91/clk-usb.c
+++ b/drivers/clk/at91/clk-usb.c
@@ -221,12 +221,12 @@ static const struct clk_ops at91sam9n12_usb_ops = {
static struct clk_hw * __init
_at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
- const char **parent_names, u8 num_parents,
- u32 usbs_mask)
+ const char **parent_names, struct clk_parent_data *parent_data,
+ u8 num_parents, u32 usbs_mask)
{
struct at91sam9x5_clk_usb *usb;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb = kzalloc(sizeof(*usb), GFP_KERNEL);
@@ -235,7 +235,10 @@ _at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
init.name = name;
init.ops = &at91sam9x5_usb_ops;
- init.parent_names = parent_names;
+ if (parent_data)
+ init.parent_data = (const struct clk_parent_data *)parent_data;
+ else
+ init.parent_names = parent_names;
init.num_parents = num_parents;
init.flags = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
CLK_SET_RATE_PARENT;
@@ -257,27 +260,30 @@ _at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
struct clk_hw * __init
at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
- const char **parent_names, u8 num_parents)
+ const char **parent_names, struct clk_parent_data *parent_data,
+ u8 num_parents)
{
return _at91sam9x5_clk_register_usb(regmap, name, parent_names,
- num_parents, SAM9X5_USBS_MASK);
+ parent_data, num_parents, SAM9X5_USBS_MASK);
}
struct clk_hw * __init
sam9x60_clk_register_usb(struct regmap *regmap, const char *name,
- const char **parent_names, u8 num_parents)
+ const char **parent_names, struct clk_parent_data *parent_data,
+ u8 num_parents)
{
return _at91sam9x5_clk_register_usb(regmap, name, parent_names,
- num_parents, SAM9X60_USBS_MASK);
+ parent_data, num_parents,
+ SAM9X60_USBS_MASK);
}
struct clk_hw * __init
at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
- const char *parent_name)
+ const char *parent_name, struct clk_parent_data *parent_data)
{
struct at91sam9x5_clk_usb *usb;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb = kzalloc(sizeof(*usb), GFP_KERNEL);
@@ -286,7 +292,10 @@ at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
init.name = name;
init.ops = &at91sam9n12_usb_ops;
- init.parent_names = &parent_name;
+ if (parent_data)
+ init.parent_data = (const struct clk_parent_data *)parent_data;
+ else
+ init.parent_names = &parent_name;
init.num_parents = 1;
init.flags = CLK_SET_RATE_GATE | CLK_SET_RATE_PARENT;
@@ -390,11 +399,12 @@ static const struct clk_ops at91rm9200_usb_ops = {
struct clk_hw * __init
at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
- const char *parent_name, const u32 *divisors)
+ const char *parent_name, struct clk_parent_data *parent_data,
+ const u32 *divisors)
{
struct at91rm9200_clk_usb *usb;
struct clk_hw *hw;
- struct clk_init_data init;
+ struct clk_init_data init = {};
int ret;
usb = kzalloc(sizeof(*usb), GFP_KERNEL);
@@ -403,7 +413,10 @@ at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
init.name = name;
init.ops = &at91rm9200_usb_ops;
- init.parent_names = &parent_name;
+ if (parent_data)
+ init.parent_data = (const struct clk_parent_data *)parent_data;
+ else
+ init.parent_names = &parent_name;
init.num_parents = 1;
init.flags = CLK_SET_RATE_PARENT;
diff --git a/drivers/clk/at91/dt-compat.c b/drivers/clk/at91/dt-compat.c
index f5a5f9ba7634..7883198f6a98 100644
--- a/drivers/clk/at91/dt-compat.c
+++ b/drivers/clk/at91/dt-compat.c
@@ -946,7 +946,7 @@ static void __init of_at91sam9x5_clk_usb_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
- hw = at91sam9x5_clk_register_usb(regmap, name, parent_names,
+ hw = at91sam9x5_clk_register_usb(regmap, name, parent_names, NULL,
num_parents);
if (IS_ERR(hw))
return;
@@ -976,7 +976,7 @@ static void __init of_at91sam9n12_clk_usb_setup(struct device_node *np)
if (IS_ERR(regmap))
return;
- hw = at91sam9n12_clk_register_usb(regmap, name, parent_name);
+ hw = at91sam9n12_clk_register_usb(regmap, name, parent_name, NULL);
if (IS_ERR(hw))
return;
@@ -1009,7 +1009,7 @@ static void __init of_at91rm9200_clk_usb_setup(struct device_node *np)
of_node_put(parent_np);
if (IS_ERR(regmap))
return;
- hw = at91rm9200_clk_register_usb(regmap, name, parent_name, divisors);
+ hw = at91rm9200_clk_register_usb(regmap, name, parent_name, NULL, divisors);
if (IS_ERR(hw))
return;
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 0646775dfb1d..c66ee44255d7 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -285,16 +285,19 @@ at91_clk_register_system(struct regmap *regmap, const char *name,
struct clk_hw * __init
at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
- const char **parent_names, u8 num_parents);
+ const char **parent_names, struct clk_parent_data *parent_data,
+ u8 num_parents);
struct clk_hw * __init
at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
- const char *parent_name);
+ const char *parent_name, struct clk_parent_data *parent_data);
struct clk_hw * __init
sam9x60_clk_register_usb(struct regmap *regmap, const char *name,
- const char **parent_names, u8 num_parents);
+ const char **parent_names, struct clk_parent_data *parent_data,
+ u8 num_parents);
struct clk_hw * __init
at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
- const char *parent_name, const u32 *divisors);
+ const char *parent_name, struct clk_parent_data *parent_data,
+ const u32 *divisors);
struct clk_hw * __init
at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr,
diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
index fd53e54abf88..eb38da77d69a 100644
--- a/drivers/clk/at91/sam9x60.c
+++ b/drivers/clk/at91/sam9x60.c
@@ -306,7 +306,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
parent_names[0] = "pllack_divck";
parent_names[1] = "upllck_divck";
parent_names[2] = "main_osc";
- hw = sam9x60_clk_register_usb(regmap, "usbck", parent_names, 3);
+ hw = sam9x60_clk_register_usb(regmap, "usbck", parent_names, NULL, 3);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/sam9x7.c b/drivers/clk/at91/sam9x7.c
index c4578944611e..fdff799f0a22 100644
--- a/drivers/clk/at91/sam9x7.c
+++ b/drivers/clk/at91/sam9x7.c
@@ -738,23 +738,21 @@ static const struct {
static void __init sam9x7_pmc_setup(struct device_node *np)
{
u8 td_slck_index = 0, md_slck_index = 1, main_xtal_index = 2;
+ struct clk_hw *hw, *main_rc_hw, *main_osc_hw, *usbck_hw;
struct clk_range range = CLK_RANGE(0, 0);
const char *const main_xtal_name = "main_xtal";
const char *const td_slck_name = "td_slck";
const char *const md_slck_name = "md_slck";
struct pmc_data *sam9x7_pmc;
- const char *parent_names[9];
void **clk_mux_buffer = NULL;
int clk_mux_buffer_size = 0;
+ struct clk *main_xtal;
struct regmap *regmap;
- struct clk_hw *hw, *main_rc_hw, *main_osc_hw, *main_xtal_hw;
- struct clk_hw *usbck_hw;
struct clk_parent_data parent_data[9];
int i, j;
- main_xtal_hw = __clk_get_hw(of_clk_get_by_name(np, main_xtal_name));
-
- if (!main_xtal_hw)
+ main_xtal = of_clk_get(np, main_xtal_index);
+ if (IS_ERR(main_xtal))
return;
regmap = device_node_to_regmap(np);
@@ -804,19 +802,18 @@ static void __init sam9x7_pmc_setup(struct device_node *np)
switch (sam9x7_plls[i][j].p) {
case SAM9X7_PLL_PARENT_MAINCK:
parent_data[0] = AT91_CLK_PD_NAME("mainck", -1);
- hw = sam9x7_pmc->chws[PMC_MAIN];
+ parent_rate = clk_hw_get_rate(sam9x7_pmc->chws[PMC_MAIN]);
break;
case SAM9X7_PLL_PARENT_MAIN_XTAL:
parent_data[0] = AT91_CLK_PD_NAME(main_xtal_name,
main_xtal_index);
- hw = main_xtal_hw;
+ parent_rate = clk_get_rate(main_xtal);
break;
default:
/* Should not happen. */
break;
}
- parent_rate = clk_hw_get_rate(hw);
if (!parent_rate)
return;
@@ -871,10 +868,10 @@ static void __init sam9x7_pmc_setup(struct device_node *np)
sam9x7_pmc->chws[PMC_MCK] = hw;
- parent_names[0] = "plla_divpmcck";
- parent_names[1] = "upll_divpmcck";
- parent_names[2] = "main_osc";
- usbck_hw = sam9x60_clk_register_usb(regmap, "usbck", parent_names, 3);
+ parent_data[0] = AT91_CLK_PD_HW(sam9x7_plls[PLL_ID_PLLA][PLL_COMPID_DIV0].hw);
+ parent_data[1] = AT91_CLK_PD_HW(sam9x7_plls[PLL_ID_UPLL][PLL_COMPID_DIV0].hw);
+ parent_data[2] = AT91_CLK_PD_HW(main_osc_hw);
+ usbck_hw = sam9x60_clk_register_usb(regmap, "usbck", NULL, parent_data, 3);
if (IS_ERR(usbck_hw))
goto err_free;
@@ -971,7 +968,7 @@ static void __init sam9x7_pmc_setup(struct device_node *np)
of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sam9x7_pmc);
kfree(clk_mux_buffer);
- return;
+ goto put_main_xtal;
err_free:
if (clk_mux_buffer) {
@@ -980,6 +977,8 @@ static void __init sam9x7_pmc_setup(struct device_node *np)
kfree(clk_mux_buffer);
}
kfree(sam9x7_pmc);
+put_main_xtal:
+ clk_put(main_xtal);
}
/* Some clks are used for a clocksource */
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index c16594fce90c..8bbc34e22cda 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -284,7 +284,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
parent_names[0] = "plladivck";
parent_names[1] = "utmick";
- hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2);
+ hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, NULL, 2);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/sama5d3.c b/drivers/clk/at91/sama5d3.c
index 522ce6031446..05d0cdd22bc4 100644
--- a/drivers/clk/at91/sama5d3.c
+++ b/drivers/clk/at91/sama5d3.c
@@ -201,7 +201,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
parent_names[0] = "plladivck";
parent_names[1] = "utmick";
- hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2);
+ hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, NULL, 2);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
index 160c0bddb6a3..da84b4cef827 100644
--- a/drivers/clk/at91/sama5d4.c
+++ b/drivers/clk/at91/sama5d4.c
@@ -222,7 +222,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
parent_names[0] = "plladivck";
parent_names[1] = "utmick";
- hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, 2);
+ hw = at91sam9x5_clk_register_usb(regmap, "usbck", parent_names, NULL, 2);
if (IS_ERR(hw))
goto err_free;
diff --git a/drivers/clk/at91/sama7d65.c b/drivers/clk/at91/sama7d65.c
index 4d47d20e65fb..f10faabc7ffe 100644
--- a/drivers/clk/at91/sama7d65.c
+++ b/drivers/clk/at91/sama7d65.c
@@ -1090,34 +1090,33 @@ static const struct clk_pcr_layout sama7d65_pcr_layout = {
static void __init sama7d65_pmc_setup(struct device_node *np)
{
u8 td_slck_index = 0, md_slck_index = 1, main_xtal_index = 2;
- struct clk_hw *hw, *main_rc_hw, *main_osc_hw, *main_xtal_hw;
+ struct clk_hw *hw, *main_rc_hw, *main_osc_hw, *usbck_hw;
const char * const main_xtal_name = "main_xtal";
const char * const td_slck_name = "td_slck";
const char * const md_slck_name = "md_slck";
struct clk_parent_data parent_data[10];
struct pmc_data *sama7d65_pmc;
- const char *parent_names[11];
void **alloc_mem = NULL;
int alloc_mem_size = 0;
+ struct clk *main_xtal;
struct regmap *regmap;
bool bypass;
int i, j;
- main_xtal_hw = __clk_get_hw(of_clk_get_by_name(np, main_xtal_name));
-
- if (!main_xtal_hw)
+ main_xtal = of_clk_get(np, main_xtal_index);
+ if (IS_ERR(main_xtal))
return;
regmap = device_node_to_regmap(np);
if (IS_ERR(regmap))
- return;
+ goto put_main_xtal;
sama7d65_pmc = pmc_data_allocate(PMC_INDEX_MAX,
nck(sama7d65_systemck),
nck(sama7d65_periphck),
nck(sama7d65_gck), 8);
if (!sama7d65_pmc)
- return;
+ goto put_main_xtal;
alloc_mem = kmalloc(sizeof(void *) *
(ARRAY_SIZE(sama7d65_mckx) + ARRAY_SIZE(sama7d65_gck)),
@@ -1158,18 +1157,18 @@ static void __init sama7d65_pmc_setup(struct device_node *np)
switch (sama7d65_plls[i][j].p) {
case SAMA7D65_PLL_PARENT_MAINCK:
parent_data[0] = AT91_CLK_PD_NAME("mainck", -1);
- hw = sama7d65_pmc->chws[PMC_MAIN];
+ parent_rate = clk_hw_get_rate(sama7d65_pmc->chws[PMC_MAIN]);
break;
case SAMA7D65_PLL_PARENT_MAIN_XTAL:
parent_data[0] = AT91_CLK_PD_NAME(main_xtal_name,
main_xtal_index);
- hw = main_xtal_hw;
+ parent_rate = clk_get_rate(main_xtal);
break;
default:
/* Should not happen. */
break;
}
- parent_rate = clk_hw_get_rate(hw);
+
if (!parent_rate)
return;
@@ -1253,11 +1252,11 @@ static void __init sama7d65_pmc_setup(struct device_node *np)
sama7d65_pmc->chws[sama7d65_mckx[i].eid] = hw;
}
- parent_names[0] = "syspll_divpmcck";
- parent_names[1] = "usbpll_divpmcck";
- parent_names[2] = "main_osc";
- hw = sam9x60_clk_register_usb(regmap, "usbck", parent_names, 3);
- if (IS_ERR(hw))
+ parent_data[0] = AT91_CLK_PD_HW(sama7d65_plls[PLL_ID_SYS][PLL_COMPID_DIV0].hw);
+ parent_data[1] = AT91_CLK_PD_HW(sama7d65_plls[PLL_ID_USB][PLL_COMPID_DIV0].hw);
+ parent_data[2] = AT91_CLK_PD_HW(main_osc_hw);
+ usbck_hw = sam9x60_clk_register_usb(regmap, "usbck", NULL, parent_data, 3);
+ if (IS_ERR(usbck_hw))
goto err_free;
parent_data[0] = AT91_CLK_PD_NAME(md_slck_name, md_slck_index);
@@ -1353,7 +1352,7 @@ static void __init sama7d65_pmc_setup(struct device_node *np)
of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sama7d65_pmc);
kfree(alloc_mem);
- return;
+ goto put_main_xtal;
err_free:
if (alloc_mem) {
@@ -1363,6 +1362,8 @@ static void __init sama7d65_pmc_setup(struct device_node *np)
}
kfree(sama7d65_pmc);
+put_main_xtal:
+ clk_put(main_xtal);
}
/* Some clks are used for a clocksource */
--
2.43.0
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