[PATCH 12/19] clk: at91: clk-generated: add mux_table option

Claudiu Beznea
2020-07-15T11:25:27Z

Add mux table option. This is necessary for IP versions where
software parent indexes are different than hardware parent
indexes (e.g. SAMA7G5).

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/clk/at91/clk-generated.c | 13 ++++++++++---
drivers/clk/at91/dt-compat.c | 5 +++--
drivers/clk/at91/pmc.h | 2 +-
drivers/clk/at91/sam9x60.c | 2 +-
drivers/clk/at91/sama5d2.c | 2 +-
5 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-generated.c
index f9ca04c97128..b4fc8d71daf2 100644
--- a/drivers/clk/at91/clk-generated.c
+++ b/drivers/clk/at91/clk-generated.c
@@ -23,6 +23,7 @@ struct clk_generated {
struct regmap *regmap;
struct clk_range range;
spinlock_t *lock;
+ u32 *mux_table;
u32 id;
u32 gckdiv;
const struct clk_pcr_layout *layout;
@@ -201,7 +202,11 @@ static int clk_generated_set_parent(struct clk_hw *hw, u8 index)
if (index >= clk_hw_get_num_parents(hw))
return -EINVAL;

- gck->parent_id = index;
+ if (gck->mux_table)
+ gck->parent_id = clk_mux_index_to_val(gck->mux_table, 0, index);
+ else
+ gck->parent_id = index;
+
return 0;
}

@@ -273,8 +278,9 @@ struct clk_hw * __init
at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
const struct clk_pcr_layout *layout,
const char *name, const char **parent_names,
- u8 num_parents, u8 id,
- const struct clk_range *range, int chg_pid)
+ u32 *mux_table, u8 num_parents, u8 id,
+ const struct clk_range *range,
+ int chg_pid)
{
struct clk_generated *gck;
struct clk_init_data init;
@@ -300,6 +306,7 @@ at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
gck->range = *range;
gck->chg_pid = chg_pid;
gck->layout = layout;
+ gck->mux_table = mux_table;

clk_generated_startup(gck);
hw = &gck->hw;
diff --git a/drivers/clk/at91/dt-compat.c b/drivers/clk/at91/dt-compat.c
index 8a652c44c25a..cc95d42f4d53 100644
--- a/drivers/clk/at91/dt-compat.c
+++ b/drivers/clk/at91/dt-compat.c
@@ -158,8 +158,9 @@ static void __init of_sama5d2_clk_generated_setup(struct device_node *np)

hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
&dt_pcr_layout, name,
- parent_names, num_parents,
- id, &range, chg_pid);
+ parent_names, NULL,
+ num_parents, id, &range,
+ chg_pid);
if (IS_ERR(hw))
continue;

diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h
index 949b1a7b91e5..2bfe1405f9f8 100644
--- a/drivers/clk/at91/pmc.h
+++ b/drivers/clk/at91/pmc.h
@@ -122,7 +122,7 @@ struct clk_hw * __init
at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
const struct clk_pcr_layout *layout,
const char *name, const char **parent_names,
- u8 num_parents, u8 id,
+ u32 *mux_table, u8 num_parents, u8 id,
const struct clk_range *range, int chg_pid);

struct clk_hw * __init
diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
index c4e34c0909e3..3ad16d74577e 100644
--- a/drivers/clk/at91/sam9x60.c
+++ b/drivers/clk/at91/sam9x60.c
@@ -288,7 +288,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
&sam9x60_pcr_layout,
sam9x60_gck[i].n,
- parent_names, 6,
+ parent_names, NULL, 6,
sam9x60_gck[i].id,
&sam9x60_gck[i].r, INT_MIN);
if (IS_ERR(hw))
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 42637d9531d3..6a685d00f16d 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -321,7 +321,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
&sama5d2_pcr_layout,
sama5d2_gck[i].n,
- parent_names, 6,
+ parent_names, NULL, 6,
sama5d2_gck[i].id,
&sama5d2_gck[i].r,
sama5d2_gck[i].chg_pid);
--
2.7.4