clk: at91: allow setting all PMC clock parents via DT

We need to have clocks accessible via phandle to select them
as peripheral clock parent using assigned-clock-parents in DT.
Add support for PLLACK/PLLBCK/AUDIOPLLCK clocks where available.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lkml.kernel.org/r/fa39cc10dab8341ea4bc2b7152be9217b2cd34a5.1588630999.git.mirq-linux@rere.qmqm.plSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/at91/at91rm9200.c

@@ -98,7 +98,7 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	at91rm9200_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	at91rm9200_pmc = pmc_data_allocate(PMC_PLLBCK + 1,
 					    nck(at91rm9200_systemck),
 					    nck(at91rm9200_periphck), 0, 4);
 	if (!at91rm9200_pmc)
@@ -123,12 +123,16 @@ static void __init at91rm9200_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91rm9200_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_pll(regmap, "pllbck", "mainck", 1,
 				   &at91rm9200_pll_layout,
 				   &rm9200_pll_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91rm9200_pmc->chws[PMC_PLLBCK] = hw;
+
 	parent_names[0] = slowxtal_name;
 	parent_names[1] = "mainck";
 	parent_names[2] = "pllack";

drivers/clk/at91/at91sam9260.c

@@ -352,7 +352,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
 	if (IS_ERR(regmap))
 		return;
 
-	at91sam9260_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	at91sam9260_pmc = pmc_data_allocate(PMC_PLLBCK + 1,
 					    ndck(data->sck, data->num_sck),
 					    ndck(data->pck, data->num_pck),
 					    0, data->num_progck);
@@ -399,12 +399,16 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9260_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_pll(regmap, "pllbck", "mainck", 1,
 				   data->pllb_layout,
 				   data->pllb_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9260_pmc->chws[PMC_PLLBCK] = hw;
+
 	parent_names[0] = slck_name;
 	parent_names[1] = "mainck";
 	parent_names[2] = "pllack";

drivers/clk/at91/at91sam9g45.c

@@ -115,7 +115,7 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	at91sam9g45_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	at91sam9g45_pmc = pmc_data_allocate(PMC_PLLACK + 1,
 					    nck(at91sam9g45_systemck),
 					    nck(at91sam9g45_periphck), 0, 2);
 	if (!at91sam9g45_pmc)
@@ -143,6 +143,8 @@ static void __init at91sam9g45_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9g45_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
 	if (IS_ERR(hw))
 		goto err_free;

drivers/clk/at91/at91sam9n12.c

@@ -128,7 +128,7 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	at91sam9n12_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	at91sam9n12_pmc = pmc_data_allocate(PMC_PLLBCK + 1,
 					   nck(at91sam9n12_systemck), 31, 0, 2);
 	if (!at91sam9n12_pmc)
 		return;
@@ -162,11 +162,15 @@ static void __init at91sam9n12_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9n12_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_pll(regmap, "pllbck", "mainck", 1,
 				   &at91rm9200_pll_layout, &pllb_characteristics);
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9n12_pmc->chws[PMC_PLLBCK] = hw;
+
 	parent_names[0] = slck_name;
 	parent_names[1] = "mainck";
 	parent_names[2] = "plladivck";

drivers/clk/at91/at91sam9rl.c

@@ -87,7 +87,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	at91sam9rl_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	at91sam9rl_pmc = pmc_data_allocate(PMC_PLLACK + 1,
 					   nck(at91sam9rl_systemck),
 					   nck(at91sam9rl_periphck), 0, 2);
 	if (!at91sam9rl_pmc)
@@ -105,6 +105,8 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9rl_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
 	if (IS_ERR(hw))
 		goto err_free;

drivers/clk/at91/at91sam9x5.c

@@ -150,7 +150,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 	if (IS_ERR(regmap))
 		return;
 
-	at91sam9x5_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	at91sam9x5_pmc = pmc_data_allocate(PMC_PLLACK + 1,
 					   nck(at91sam9x5_systemck), 31, 0, 2);
 	if (!at91sam9x5_pmc)
 		return;
@@ -184,6 +184,8 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
 	if (IS_ERR(hw))
 		goto err_free;
 
+	at91sam9x5_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
 	if (IS_ERR(hw))
 		goto err_free;

drivers/clk/at91/sam9x60.c

@@ -182,7 +182,7 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	sam9x60_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	sam9x60_pmc = pmc_data_allocate(PMC_PLLACK + 1,
 					nck(sam9x60_systemck),
 					nck(sam9x60_periphck),
 					nck(sam9x60_gck), 8);
@@ -214,6 +214,8 @@ static void __init sam9x60_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	sam9x60_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = sam9x60_clk_register_pll(regmap, &pmc_pll_lock, "upllck",
 				      "main_osc", 1, &upll_characteristics);
 	if (IS_ERR(hw))

drivers/clk/at91/sama5d2.c

@@ -167,7 +167,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	sama5d2_pmc = pmc_data_allocate(PMC_I2S1_MUX + 1,
+	sama5d2_pmc = pmc_data_allocate(PMC_AUDIOPLLCK + 1,
 					nck(sama5d2_systemck),
 					nck(sama5d2_periph32ck),
 					nck(sama5d2_gck), 3);
@@ -203,6 +203,8 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	sama5d2_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_audio_pll_frac(regmap, "audiopll_fracck",
 					      "mainck");
 	if (IS_ERR(hw))
@@ -218,6 +220,8 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	sama5d2_pmc->chws[PMC_AUDIOPLLCK] = hw;
+
 	regmap_sfr = syscon_regmap_lookup_by_compatible("atmel,sama5d2-sfr");
 	if (IS_ERR(regmap_sfr))
 		regmap_sfr = NULL;

drivers/clk/at91/sama5d3.c

@@ -125,7 +125,7 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	sama5d3_pmc = pmc_data_allocate(PMC_MAIN + 1,
+	sama5d3_pmc = pmc_data_allocate(PMC_PLLACK + 1,
 					nck(sama5d3_systemck),
 					nck(sama5d3_periphck), 0, 3);
 	if (!sama5d3_pmc)
@@ -158,6 +158,8 @@ static void __init sama5d3_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	sama5d3_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
 	if (IS_ERR(hw))
 		goto err_free;

drivers/clk/at91/sama5d4.c

@@ -140,7 +140,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
 	if (IS_ERR(regmap))
 		return;
 
-	sama5d4_pmc = pmc_data_allocate(PMC_MCK2 + 1,
+	sama5d4_pmc = pmc_data_allocate(PMC_PLLACK + 1,
 					nck(sama5d4_systemck),
 					nck(sama5d4_periph32ck), 0, 3);
 	if (!sama5d4_pmc)
@@ -173,6 +173,8 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
 	if (IS_ERR(hw))
 		goto err_free;
 
+	sama5d4_pmc->chws[PMC_PLLACK] = hw;
+
 	hw = at91_clk_register_utmi(regmap, NULL, "utmick", "mainck");
 	if (IS_ERR(hw))
 		goto err_free;

include/dt-bindings/clock/at91.h

@@ -21,6 +21,9 @@
 #define PMC_MCK2		4
 #define PMC_I2S0_MUX		5
 #define PMC_I2S1_MUX		6
+#define PMC_PLLACK		7
+#define PMC_PLLBCK		8
+#define PMC_AUDIOPLLCK		9
 
 #ifndef AT91_PMC_MOSCS
 #define AT91_PMC_MOSCS		0		/* MOSCS Flag */